Chino City Council
October 18, 2022

2. At the applicant's cost, verify to the applicant's reasonable satisfaction using standard electrical inspection te chniques that the existin g electrical system including existing line, load, ground, and bonding wiring, as well as main panel and subpanel si zes are adequately sized, based on the existing electrical system's current use, to carry all new photovoltaic elec trical loads.

C. An appl icant may submit the permit application and associated documentation to the city's building division by personal, ma iled, or electronic submittal together with any required permit processing and inspection fees. In the case of elec tronic submittal, the ele ctronic signature of the applicant on all forms, applications, and other documentation may be used in lieu of a wet signature.

D. For a small residential rooftop solar energy system eligible for expedited review, only one inspecti on from the building divi sion shall be required, which shall be done in a timely manner. A separate fire inspection is required to be performed by the Chino Valley Independent Fire District. If a small residential rooftop solar energy system fails inspecti on, a subsequent inspection is authorized; however, the subsequent inspection need not conform to the requirements of this subsection.

E. An application that satisfies the information requirements in the checklist, as determined by the building official, shall be deemed complete. Upon receipt of an incomplete application, the building official shall issue a written correction notice detailing all deficiencies in the application and any additional information required to be eligible for expedited permit issuance.

F. Upon confirmation by the building official of the application and supporting documentation being complete and meeting the requirem ents of the checklist, the building official shall administratively approve the application and issue all required permits and authorizations. Such approval does not authorize an applicant to connect the small residential rooftop energy system to the local utility provider's electricity grid. The applicant is responsible for obtaining such approval or permission from the local utility provider.

Chapter 15.48 - SECURITY AND SAFETY STANDARDS FOR CONSTRUCTION Sections:

15.48.010 - Purpose.

15.48.020 - Application.

15.48.030 - Definitions.

15.48.040 - Compliance—Required.

15.48.050 - Compliance—Time—Procedure.

15.48.060 - Security standards—Generally.

15.48.070 - Security standards—Residential units.

15.48.080 - Security standards—Commercial/industrial building.

15.48.090 - Exceptions—Criteria for approval.

15.48.100 - Testing.

15.48.110 - Reserved.

15.48.120 - Enforcement.

15.48.130 - Violation—Penalty.

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15.48.010 - Purpose.

The city declares the provisions contained in this chapter both desirable and necess ary for the safety and protection of human life and property.

15.48.020 - Application.

The provisions of this chapter shall be applied at such times as building permits are issued for new building construction or any structural addition to an existing building. The existing structure shall meet the provisions of this code when additions thereto are constructed.

15.48.030 - Definitions.

For the purpose of this chapter, the definitions given in this section shall govern the meanings of the following words and phrases:

A. "Building official" means the building official of the city.

B. "Building permit" means approval to commence construction issued by the building official upon determination that all plans and specifications for a proposed building or structure conform to the city's codes and standards.

C. "Locks" include the following:

1. "Cylinder spring dead latchset" means a latching device and strike plate which is positively held in deadlatch position w hen the door is closed by means of an added integral slide trigger mechanism. The complete set shall consist of pin tumbler cylinder key operation from the exterior and a knob, thumbturn, or lever handle from the interior.

2. "Dead-latching lockset" means a lock similar to the cylinder sprin g dead latchset, except the lockset shall consist of a k nob on both sides and shall be locked or unlocked by a pin tumbler cylinder key from exterior and a turn button from interior.

3. "Panic-free lockset" means a h igh security lockset with a one -inch throw deadbolt and a cylinder guard. The deadbolt is retr acted simultaneously by single action of the interior knob for panic escapement.

4. "Double cylinder deadlock" means a bolt with one -inch throw which has no aut omatic spring action and which is oper ated by a pin tumbler cylinder key from either side of t he door.

The bolt must be steel or contain steel embodiments.

5. "Single cylinder deadlock" means a bolt similar to the double cylinder deadlock, but actuated by a pin tumbler cylinder key from the outside and a thumbturn on the inside and is positively held fast when in the projected position.

D. "Lock components" include the following:

1. "Cylinder guard" means a hardened free-turning steel ring surrounding the exposed portion of the lock cylinder and is so fastened as to protect the cylinder from w renching, prying, cutting, or pulling by attack tools.

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2. "Insert" means a hardened steel pin contained in the bolt and located to prevent bolt cutting with common tools.

3. "Security strike" means a heavy gauge steel strike with four off center screws one and one- half inches long permitting full penetration into the rough buck. Approximate dimensions: three and five-eighths inches by one and one-fourth inches.

15.48.040 - Compliance—Required.

Materials, methods of construction or structural design limitations provided for in this chapter are to be used unless an exception is granted.

15.48.050 - Compliance—Time—Procedure.

All construction plans and drawings for structures and additions ther eto submitted to the city for a building permit shall note the requirements of this chapter and incorporate the provisions into the plans and drawings. After the effective date of the ordinance codified in this chapter, the building official shall not issue a building permit to any person, f irm or corporation that proposes to erect, construct or enlarge any building or structure, or cause the same to be done, without providing verification that the building or addition conforms to the regulations set forth in this chapter.

15.48.060 - Security standards—Generally.

A. Louvered windows shall not be used.

B. Overhead garage doors shall be equipped with slide bolts, which shall be capable of utilizing padlocks with minimum nine thirty-seconds inch shackle.

C. Where sliding or accordion doors are utilized, th ey shall be equipped with guide tracks which shall be designed so that the door cannot be removed from the track when in the closed and locked position.

D. Sliding glass windows and doors shall be e quipped with a pin -joined locking mechanism containing a heavy duty bolt which locks the door securely to adjacent stationary window.

E. Windows and sliding glass doors may have iron grill work for protection if the grillwork can be opened easily from the inside without the use of any tool or key.

15.48.070 - Security standards—Residential units.

The following special provisions shall apply to residential buildings in the city in addition to the general security standards contained in Section 15.48.060:

A. Doors shall comply with the following regulations:

1. All exterior swinging doors shall be of solid core construction with a minimum thickness of one and three-fourths inches, or with panels not less than nine-sixteenths inch thick.

2. Any swinging do or leading from a garage into a residence, shall be of solid core construction with a minimum thickness of one and three-eighths inches.

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3. All swinging exterior doors and doors leading from garage areas into dwellings shall be equipped with a one-inch deadbolt locking mechanism. The deadbolt shall have a minimum bolt throw of one-inch and shall be equipped with a steel insert and a free turning cylinder guard.

EXCEPTION. Exterior swinging doors leading into garages have a minimum requirement to be equipped with a dead latch locking mechanism.

4. Main entrance door shall be operable from the inside without the use of a key or any special knowledge or effort.

5. All entry doors on upper floors to apartments not containing alternate emergency escape routes shall use panic-free double locksets.

6. When entry doors are doubles, one leaf shall be held in posi tion by hand bolts at top and bottom with a minimum penetration into floor and jamb of one inch.

7. Hinges which are exposed to the exterior shall be equipped with nonremovable hinge pins or a mechanical interlock to preclude removal of the door from the exterior by removing the hinge pins.

8. All front exterior doors shall be equipped with a wide angle one hundred eighty-degree door viewer, except where occupant has clear vision of the area immediately outside the door without opening the door.

9. Trimmers on exterior doors shall be four inches by four inches trimmer, well nailed to the king stud and accurately set to receive the finish door jamb. This requirement shall apply only to new construction.

10. Exterior doors with glazing within forty inc hes of any locking mechanism shall be protected by rated burglary resistant glazing or a double cylinder deadbolt lock.

B. Address markings shall comply with the following regulations:

1. All residential structures shall display a street number in a prominent position so that it shall be easily visible from the street. The numerals in these numbers shall be no less than four inches in height, of a color contrasting to the background and locat ed so they may be clearly seen and read.

2. In multiple -family dwelling complexes, each residential building shall display a street number in a prominent position. It shall be lighted (equipped with a photo sensitive automatic lighting device) and be easily visible from a street, driveway or pedest rian walkway. Sai d identification shall be no less than six inches in height and of a color contrasting to the background. The entrance of each dwelling unit shall have a unit identifying number, letter or combination thereof, displayed or adjacent to the dwelling unit doo r and be no less than three inches in height and of a contrasting color to the background.

3. Maps of the complex shall be furnished to the police and fire departments upon completion of construction. The maps shall include building identification and unit identification.

C. Lighting shall conform to the following regulations:

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1. Provisions for lighting must meet design review standards before approval.

2. All exterior doorway entrances shall be equipped with photo sensitive automatic lighting devices capable of providing at least one footcandle of light at ground level during hours of darkness.

3. Aisles, passageways, mailbox locations, patio and balconies, recreation buildings, laundry rooms, within multiple-family dwelling complexes shall be equipped with security lighting devices such as photo sensitive or automatic lighting devices capa ble of providing at least .25 footcandles of light at ground level during hours of darkness.

4. Open parking lots and carports of multiple -family dwelling comp lexes shall be equipped with photo sensitive or automatic lighting devices capable of providing at least one footcandle of lighting on the parking surface during hours of darkness.

5. All lighting devices shall be protected by vandal-resistant covers.

15.48.080 - Security standards—Commercial/industrial building.

The following special provisio ns shall apply to all commercial/industrial buildings and additions thereto constructed in the city in addition to the general s ecurity standards contained in Section

15.48.060:

A. Door security shall meet the following specifications:

1. All exterior swinging doors shall be equipped with a one -inch deadbolt locking mechanism.

The deadbolt shall have a minimum bolt throw of one inch and shall be equipped with a steel insert and a free turning cylinder guard.

2. Swinging exterior glass doors, wood or m etal doors with glass panels, solid wood or metal doors shall be constructed or protected as follows:
a. Wood doors shall be s olid core construction with a minimum thickness of one and three - fourths inches.
b. Hollow metal doors shall be constructed of a minimum equivalent to sixteen U.S. gauge steel and have sufficient reinforcement to maintain the designed thickness of the door when any locking device is installed; such reinforcement being able to restrict collapsing of the door around the locking device.

3. Except when double cylinder deadbolts are utilized, any glazing utilized within forty inches of any door locking mechanism shall be constructed or protected as follows:
a. Fully tempered glass or rated burglary resistant glazing; or b. Iron or steel grills or at least one-eighth inch metal with a maximum two-inch mesh secured on and easily removable from the inside of the glazing may be utilized; or c. The glazing shall be covered with iron or steel bars of at least one -half inch round or one inch by one-fourth inch flat metal, spaced not more than five inches apart and secured on and easily removable from the inside of the glazing;

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d. Items b and c shall not interfere with the operation of opening windows if such windows are required to be openable by the California Building Code.

4. Hinges for outswinging doors shall be equipped with nonremovable hinge pins or a mechanical interlock to preclude removal of the door from the exterior by removing the hinge pins.

5. The jamb on all aluminum frame s winging doors shall be so constructed or protected to withstand sixteen hundred pounds of pressure in both a vertical distance of three inches and a horizontal distance of one inch each side of the strike, so as to prevent violation of the strike.

6. In multiple-occupancy office buildings, all entrance doors to individual office suites shall meet the construction and locking requirements for exterior doors.

B. Windows shall meet the following specifications:

1. Windows shall be deemed accessible if le ss than twelve feet above ground or adjacent to any pedestrian walkway.

2. Accessible windows having a pane or opening exceeding ninety-six square inches, with the smallest dimension exceeding six inches, and not v isible from a public or private thorough fare shall be protected in the following manner:
a. Fully tempered glass or burglary-resistant glazing; or b. Window barriers may be used but shall be secured with bolts which are nonremovable from the exterior while remaining removable from the interior:
i. Interior or exterior steel or iron bars of at least one -half inch round or one inch by one - quarter inch flat metal spaced not more than five inches apart and securely fastened; or ii. Interior or exterior iron or steel grills of at least one -eighth inch metal with not more than a two-inch mesh and securely fastened.
c. The protective bars or grills shall not interfere with the operation of opening windows if such windows are required to be openable by the California Building Code.

3. Hinges f or outswinging doors shall be equipped with nonremovable hinge pins or a mechanical interlock to preclude removal of the door from the exterior by removing hinge pins.

4. All hatchway openings on the roof of any bu ilding or premises used for business pur poses shall be secured as follows:
a. If the hatchway is of wooden material, it shall be covered on the inside with at least sixteen U.S. gauge sheet steel, or its equivalent, attached with screws. b. The hatchway shall be secured from the inside with a slide bar or slide bolts. c. Outside hinges on all hatchway openings shall be provided with nonremovable pins when using pin-type hinges.

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5. All air dust or air vent openings exceeding ninety -six square inches on the roof or exterior walls of any commercial building shall be secured by covering same with either of the following:
a. Iron or steel bars of at least one -half inch round or one inch by one -fourth inch flat metal spaced not more than five inches apart and securely fastened; or b. Iron or steel grills of at least one -eighth inch with a maximum two -inch mesh and securely fastened;
c. If the barrier is on the outside, it shall be secured with bolts which are nonremovable from the exterior;
d. The above must not interfere with venting req uirements, creating a potentially hazardous condition to health and safety, or conflict with the provisions of the California Building Code or Title 19, California Administrative Code.

C. Permanently affixed exteri or ladders leading to roofs shall be ful ly enclosed with sheet metal to a height of ten feet. This covering shall be locked against the ladder with a case hardened clasp secured with nonremovable screws or bolts. Hinges on the cover will be provided with nonremovable pins when using pin-type hinges. If a padlock is used, it shall have a hardened steel shackle, locking at both heel and toe, and a minimum five -pin tumbler operation with nonremovable key when in an unlocked position.

D. Lighting and address markings shall conform to the following specifications:

1. The address number of every commercial building shall be located and displayed so that it is easily visible from the street. The numerals in these numbers shall be no less t han eight inches in height and be of a color contrasting to the background. In addition, any business which affords vehicular access to the rear through any driveway, alleyway or parking lot shall also display the same numbers on the rear of the building.

2. All exterior doors to commercial buildings shall be equipped with a lighting device capable of providing a minimum of one footcandle of light. All exterior bulbs shall be protected by weather and vandalism-resistant covers.

3. Open parking lots, and access thereto, providing more than ten parking spaces and for use by the general public, shall be provided with a maintained minimum of one footcandle of light on the parking surface from dusk until the termination of business every operating day.

15.48.090 - Exceptions—Criteria for approval.

The building official may approve any material method of construction or structural design not specifically provided for in this chapter; provided that:

A. He finds the proposed design to be satisfactory and the material and method of work offered is for the purpose intended;
B. He finds the materials, method of construction and structural design is at least equivalent to that prescribed in this chapter in quality, strength, eff ectiveness, crime resistance, durability and safety;

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C. The fire department has determined that the alternative is in conformance with the California Administrative Code.

15.48.100 - Testing.

Whenever there is insuffi cient evid ence of compliance with the provisions of this chapter or evidence that any material or any construction does not conform to the requirements of this chapter, or in order to substantiate claims for alternate materials or methods of construction a s allowed by Section 15.48.090, the building official may require tests as proof of compliance to be made at the expense of the owner or his agent by an approved agency.

15.48.110 - Reserved.

15.48.120 - Enforcement.

The building official or his authorized representatives are empowered and directed to administer and enforce the provisions of this chapter relating to physical security requirements for buildings in the city.

15.48.130 - Violation—Penalty.

Any building or addition thereof constructed subsequen t to the effective date of the ordinance codified in this chapter which is not in compliance with the provisions of this chapter shall not be given a final inspection or right of occupancy by the city until all ap plicable provisions of this chapter are complied with.

Chapter 15.50 - ENFORCEMENT
Sections.

15.50.010 - Violations.

15.50.020 - Penalties.

15.50.030 - Recovery of Attorneys’ Fees.

15.50.010 - Violations.

A. It shall be a misdemeanor for any person to alter, construct, convert, demolish, enla rge, equip, erect, improve, maintain, move, occupy, rep air, or use any building or structure in the city, or cause or permit the same to be done contrary to or in violatio n of any provision of any code adopted under this title. A person shall be guilty of a separate and distinct offense for each and every day during which any violation of any provision of any code adopted under this title is committed, continued, or permitted to be committed or continued.

B. It shall be a misdemeanor for any person or entity to fail to comply with a notice or order to comply or repair issued under any provision of any code adopted under this title. A person shall be guilty of a separate and distinct offense for each and every day that he or she fails to comply with the notice or order. A violation of this subsection is independent and does not depend on a finding that the person cited also violated another provision of this code. It shall n ot be a defense to a prosecution unde r this subsection that the person cited under this subsection was found not guilty of the underlying violation.

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15.50.020 - Penalties.

Every person found guilty of a misdemeanor shall be punishable for each separate offense by a fine not exceeding one thousand dollars or by imprisonment in the county jail not exceeding six months, or by both such fine and imprisonment.

15.50.030 - Recovery of Attorneys' Fees.

Recovery authorized. Any violation of this municipal code is hereby determined to constitut e a public nuisance. The prevailing party in any judicial action, administrative proceeding, or special proceeding to abate a nuisance may recover its incurred attorney's fees, provided that the city elected, at the initiation of such individual action or proceeding, to recover its own attorneys' fees. In no judicial action or administrative proceeding shall a n award of attorney's fees to a prevailing party exceed the amount of reasonable attorney's fees incurred by the city in the judicial action or admini strative proceeding. A judicial action includes, but is not limited to, any civil or criminal action, insp ection or abatement warrant, administrative proceeding, or appeal from an administrative proceeding. In addition to any other basis, the city shall al so be determined the prevailing party when a person complies voluntarily or involuntarily after a deadline in a notice issued by the city expires, and also when the city's enforcement action was a cause or catalyst for compliance. The failure of a court to award attorneys' fees to the city shall not preclude the city from recovering its attorneys' fees and cos ts through an administrative or other process.

Chapter 15.60 - SAFETY ASSESSMENT PLACARDS
Sections:

15.60.010 - Intent.

15.60.020 - Application.

15.60.030 - Definitions.

15.60.040 - Placards—Content.

15.60.050 - Placards—Depiction.

15.60.060 - Penalty for violation.

15.60.010 - Intent.

This chapter approves the use of st andard placards to indicate the condition of buildings and structures for continued occupancy and authorizes the building official, or his or her authorized representative, to post such placards at each entry point to a building or a structure upon completion of a safety assessment.

15.60.020 - Application.

The provisions of this chapter shall apply to the occupancy of all buildings and structures subject to the regulatory jurisdiction of the city of Chino.

15.60.030 - Definitions.

The term "safety assessment" shall mean a visual, non -destructive examination of a building or structure by the building official or his or her authorized representative for the purpose of determining its suitability for continued occupancy.

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15.60.040 - Placards—Content.

The following are descriptions of the official placards to be used to design ate the condition for continued occupancy of buildings or structures, copies of which are depicted in the addendum to Section 15.60.050:

1. INSPECTED—Lawful Occupancy Permitted. This placard is to be posted on any building or structure wherein no apparen t structural hazard has been found. However, it is not intended to mean that there is no damage to th e building or structure. This placard sh all be printed with a green background or on green paper, for easy recognition.

2. RESTRICTED USE. This placard is to be posted on any building or structure that has been damaged wherein the damage has resulted in some form of restriction to the continue d occupancy. The person who posts this placard shall note in general terms the type of damage encountered and clear ly and concisely describe the restrictions on continued occupancy. This placard shall be printed with a yellow background or on yellow paper, for easy recognition.

3. UNSAFE—Do Not Enter or Occupy. This placard is to be posted on any building or structure that has been damaged so severely that continued occupancy poses a threat to life or safety. Buildi ngs or structures posted with this placard shall not be entered und er any circumstance, unless authorized in writing by the building official or his or her authorized representative. However, city safety assessment personnel and teams shall be authorized t o enter these buildings or structures at any time. This placard is not to be used as or considered to be a demolition order. The person who posts this plac ard shall note in general terms the type of damage encountered. This placard shall be printed with a red background or on red paper, for easy recognition.

4. JURISDICTIONAL SEAL, CODE REFERENCE AND RESPONSIBLE DEPARTMENT.

Each such placard shall contain the Seal of the city of Chino, a reference to the provisions of the city code pursuant to which such placard was authorized, and the responsible department name, address and phone number.

15.60.050 - Placards—Depiction.

The placards authorized by the pre ceding Section 15.60.040 are depicted in the following tables:

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Table 15.60.050.a

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Table 15.60.50.b

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Table 15.60.50.c

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15.60.060 - Penalty for violation.
(a) It shall be a misdemeanor for any person to occupy any building or structure in violation of the placard posted thereon pursuant to this chapter. A person shall be guilty of a separate and distinct offense for each and every day that he or she fails to comply with such posted placard. (b) It shall be a misdemeanor for any person to remove a placard posted on any building or structure pursuant to this chapter.
(c) Every person found guilty of a misdemeanor shall be punishable by a fine not exceeding one thousand dollars or by imprisonment in the county jail not exceeding six months, or by both such fine and imprisonment.

Chapter 15.70 – APPEALS
Sections:

15.70.010 - Appeals.

15.70.010 - Appeals.

Any recipient of a decision, order or determination by the city's building official or designee relating to the application of regulations and building standards codified in Title 15 of this code may appeal that decision, order or determination in accordance with Section 8.50.100 and Chapter 8.50 of this code.

The failure to file a timely and complete appeal as required by Section 8.50.100 and Chapter 8.50 shall constitute a waiver of all rights to appeal and a failure to exhaust administrative remedies. The decision of the hearing officer, as provided in Section 8.50.100, shall be final.

Section 2: Severability. If any s ection, subsection, sent ence, clause, phrase or portion of this Ordinance is held invalid or unconstitutional by any court of competent jurisdiction, such determination shall not affect the validity of the remaining portions of this Ordinance. The city council declares that it would have enacted this Ordinance and each section, subsection, sentence, clause and phrase hereof irrespective of any determination of invalidity.

Section 3: The City Clerk of the City of Chino sha ll certify to the passage and ado ption of this Ordinance and shall cause the same to be published in the Chino Champion, a newspaper of general circulation, printed and published within said City in accordance with the provisions of the Government Code.

ADOPTED THIS 1st DAY OF NOVEMBER 2022.

________________________________

EUNICE ULLOA, MAYOR

ATTEST:
________________________________

ANGELA ROBLES, CITY CLERK

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State of California )
County of San Bernardino ) §
City of Chino )

I, Angela Robles, City Clerk of the City of Chino, do hereby certify that the foregoing Ordinance of the City of Chino was duly adopted by the City Council at a regular meeting held on the 1st day of November 2022.

AYES: COUNCIL MEMBERS:

NOES: COUNCIL MEMBERS:

ABSENT: COUNCIL MEMBERS:

_________________________________

ANGELA ROBLES, CITY CLERK

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Revenue: Expenditure: 5207310-40005-WA212

Transfer In: Transfer Out:

M E M O R A N D U M

CITY OF CHINO

PUBLIC WORKS DEPARTMENT

COUNCIL MEETING DATE: OCTOBER 18, 2022

TO: LINDA REICH, CITY MANAGER

FROM: AMER JAKHER, PUBLIC WORKS DIRECTOR

SUBJECT: STATE STREET WATER TREATMENT PROJECT (WA212).

RECOMMENDATION
1) Conduct a Public Hearing and 2) adopt Resolution No. 2022-075, adopting a Mitigated Negative Declaration for the State Street Water Treatment Facility (WA212).

FISCAL IMPACT
The Notice of Determination for a Mitigated Negative Declaration must be filed with the San Bernardino County Clerk, requiring a filing fee for 2022 of $2,598.00. This has been included in the project budget.

CITY OF CHINO MISSION / VISION / VALUES / STRATEGIC ISSUES:

The recommendation detailed above furthers the City’s values and strategic issues that serve as key pillars on which identified priorities, goals, and action plans are built, by fostering:
• Financial Stability
• Responsible Long-Range Planning
• Public Service Excellence through Internal and External Partnerships

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SUBJECT: STATE STREET WATER TREATMENT PROJECT (WA212)
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BACKGROUND
The City of Chino encompasses approximately 30 square miles, with a water service area of 29 square miles. The City has an estimated current population of 88,800 (SCAG), with a projecte d population of 113,333 in 2040 (SCAG). The City water service area serves a population of about 80,800 and primarily follows the City boundary. Groundwater from the Chino Basin is produced by groundwater wells owned and operated by the City, and the wells constitute approximately half of the City’s water supply. Two of the City’s wells -Wells 12 and 14 -have been inactive for some time due to being impacted from contamination, as such, this project proposes to restore their utilization, which will provide a key local water resource to support the City’s growing population and water demand. The use of treated groundwater is preferred by the City compared with alternative sources, such as Water Facilities Authority (WFA) treated surface water, to reduce reliance on purchased imported surface water. The City therefore proposes the State Street Water Treatment Facility (State Street WTF), a new, centralized treatment project that will treat Wells 12 and 14 for nitrate, perchlorate, and 1,2,3 -trichloropropane (1,2,3-TCP) as these contaminants have been detected at concentrations above the Maximum Contaminant Levels (MCLs) set by the State of California Water Resources Control Board Division of Drinking Water (DDW).

The City of Chino will serve as the Lead Agency und er the California Environmental Quality Act (CEQA) for this project. The Initial Study evaluates the potential effects to the environment from implementing the project. The Initial Study Environmental Checklist Form contains 21 environmental issues that w ere addressed in the Initial Study. Review of the data contained in the Initial Study assisted the City in determining the appropriate environmental determination for the proposed project in order to comply with the California State CEQA statute and guide lines.

Additionally, to comply with a $750,000 grant from the Federal State Bureau of Reclamation (BOR), the document was also prepared to meet National Environmental Policy Act (NEPA) standards to enable the BOR to process this project under a separate NE PA documentation process. Per the CEQA statute, the City is required to adopt the Initial Study/Mitigated Negative Declaration (IS/MND) and file a Notice of Determination at the County of San Bernardino County Clerk of the Board and the California Office o f Planning and Research State Clearinghouse. The filing of the Notice of Determination will enable the NEPA process to begin.

ISSUES/ANALYSIS
The State Street WTF site is approximately 300 ft x 700 ft (5 -acres), located in San Bernardino County’s Valley Region. The site is classified as a Community Industrial zone and limits structures to a maximum height of 75 feet. Civil design for the State Street site associated with the onsite treatment system includes demolition, paving and grading, and yard piping.

The site is currently secured with ornamental iron fencing, chain link fencing, and concrete masonry units (CMU) block wall surrounding the site. Barbed wire is only present on a portion of the chain link fencing. The main access point is an electronic sl ide gate with keypad activation off of Benson Avenue.

The proposed project consists of development of a State Street Water Treatment Facility (State Street WTF), which will be a new centralized treatment project that will treat water from Wells 12 and 14 for nitrate, perchlorate, and 1,2,3 -TCP. The project also includes installation of offsite water transmission and brine pipelines, improvements to the existing wells, and site improvements. The water treatment facility will have a capacity to treat up to 4 ,000 gallons per

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PAGE 3

minute (gpm) and the anticipated extraction rate from each well is 2,000 gpm.

As stated above, the proposed project would provide treatment for nitrate, perchlorate, and 1,2,3-TCP at Wells 12 and 14. Treatment is anticipated to include pr etreatment through sand separators followed by cartridge filters (solids removal), 1,2,3 -TCP Removal through Granular Activated Carbon (GAC), perchlorate and nitrate removal through a proprietary ion exchange (IX) treatment system, then disinfection and st orage in Reservoir 5 before distribution. The IX treatment system generates waste water known as brine, that will be disposed of through a new connection to north Non -Reclaimable Wastewater System (NRWS) brine disposal pipeline that is managed locally by t he Inland Empire Utilities Agency (IEUA). The GAC system generates a periodic backwash water when the media is replaced that will be disposed of through a local sewer connection.

On July 15, 2022, the City of Chino (City) as Lead Agency circulated for publ ic review and comment a Notice of Intent to Adopt a Mitigated Negative Declaration (NOI) for the State Street WTF, pursuant to CEQA Guidelines Section 15072. The purpose of which was to receive input on the City’s determination that the Project will not have a significant effect on the environment.

The NOI was circulated for a 30 -day period between July 15, 2022 and August 15, 2022, to interested parties, Responsible Agencies, Trustee Agencies, the San Bernardino County Clerk, and State Clearinghouse for review and comment, pursuant to Section 15073 of the CEQA Guidelines. The Notice of Availability was initially published on 07/15/2022 in the Inland Valley Daily Bulletin to notify the public of the beginning on the 30-day public review period. The Notice of Availability with minor corrections for clarification purposes only was published in both the Chino Champion and Inland Valley Daily Bulletin newspapers on 08/06/2022 and 08/05/2022 respectively. These corrections were also provided to the State Clear inghouse and San Bernardino County Clerk on 07/27/2022 to update the original NOI, which is now part of the public record. In response to the NOI, comments and questions were received from the South Coast Air Quality Management District, the Chino Basin Watermaster, the City of Montclair, and the Inland Empire Utilities Agency.

As a result of the comments received, minor revisions to the Initial Study/Mitigated Negative Declaration (IS/MND) and to one or more mitigation measure have been made to amplify an d clarify the original analysis; the modifications to the mitigation measure(s) do not require recirculation pursuant to CEQA Section 15073.5(c), nor does the minor modifications to the IS/MND require recirculation pursuant to CEQA Section 15073.5. The Cit y of Montclair comment requested modification to MM NOI-2 to ensure that the construction hours be corrected to be limited to the hours of 7 a.m. and 8 p.m. on any given day within the City of Montclair, as stipulated by the City of Montclair’s Municipal C ode, Chapter 6.12. The South Coast Air Quality Management District (SCAMQD) requested that any permits that would be required to be obtained from as part of project development be included in the IS/MND. None were determined to be required and thus no modi fications to the IS/MND were necessary. The Chino Basin Watermaster recommended that the City of Chino continue to participate in the Ground Level Monitoring Program to ensure that the pumping of the wells that would supply the water to be treated by the n ew State Street Water Treatment Plant do not adversely impact the potential for subsidence and fissuring within MZ -1 and the whole of the Chino Groundwater Basin. The City’s continued participation was assured in the responses to comments. Inland

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Empire Ut ilities Agency (IEUA) requested that an alternative means of disposing of GAC backwash and raised concern over the safety of the use of chlorine gas disinfection. The City responded to modify MM HAZ-3 to further stipulate safety measures that would be implemented to ensure that chlorine gas can be utilized in a safe manner that would not result in significant impacts. The City also modified the means of disposing GAC backwash through the use of an onsite retention pond with no connection to sewer or storm drain facilities leaving the site.

Attachments: Resolution No. 2022-075
Final Initial Study for the City of Chino WA212 State Street Water Treatment Project, Well 14 On-Site Wellhead, Well 12 Off-Site Wellhead Mitigated Negative Declaration, City of Chin o State Street Water Treatment Project, State Clearinghouse Number (SCH#) 2022070197
Notice of Determination, City of Chino State Street Water Treatment Project (WA212) SCH# 2022070197

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RESOLUTION NO. 2022-075

A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CHINO,

CALIFORNIA, ADOPTING A MITIGATED NEGATIVE DECLARATION FOR THE STATE STREET WATER TREATMENT FACILITY.

WHEREAS, the City of Chino (City) owns the State Street Water Treatment Facility (State Street WTF) located at 10762 South Benson Avenue in the County of San Bernardino. Two of the City’s wells—Wells 12 and 14—have been inactive for some time due to being impacted from contamination, as such, this project proposes to restore their utilization, which will provide a key local water resource to support the City’s growing population and water demand. The use of treated groundwater is preferred by the City compared with alternative sources, such as Water Facilities Authority (WFA) treated surface water, to reduce reliance on purchased imported surface water. The City therefore proposes to construct the State Street WTF, a new, centralized treatment project (Project) at the State Street WTF that will treat Wells 12 and 14 for nitrate, perchlorate, and 1,2,3- trichloropropane (1,2,3-TCP) as these contaminants have been detected at concentrations above the Maximum Contaminant Levels (MCLs) set by the State of California Water Resources Control Board Division of Drinking Water (DDW).

WHEREAS, prior to construction of the Project, an environmental analysis is required to identify potential environmental impacts. An Initial Study/Mitigated Negative Declaration (IS/MND) dated July 2022 has been prepared by Tom Dodson & Associates, in compliance with the California Environmental Quality Act (CEQA) Guidelines, Section 15070. The document was also prepared to meet National Environmental Policy Act (NEPA) standards in order to meet the requirements of a grant from the Federal Bureau of Reclamation. The City of Chino is the Lead Agency for this Project.

WHEREAS, all provisions of the California Government Code and Chino Municipal Code related to the proposed Project have been complied with, and WHEREAS, the City Council has completed its study of the proposed Project; and WHEREAS, the 30-day public review period of the Draft IS/MND commenced on July 15, 2022, and ended on August 15, 2022; and
WHEREAS, the City published a Notice of Availability in the local newspaper on July 15, 2022 and posted a copy of the Notice of Intent at the San Bernardino County Clerk on July 15, 2022; and
WHEREAS, the City published a copy of the Draft Initial Study document at the City of Chino City Hall and made the document available on the City’s website on July 15, 2022; WHEREAS, the City published a copy of the Notice of Intent, Notice of Completion, Document Summary Form, Draft Mitigated Negative Declaration and Draft Initial Study document with the State Office of Planning and Research (State Clearinghouse) on July 15, 2022; and
WHEREAS, the City received 4 letters with comments regarding the content of the Draft

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Initial Study document.

WHEREAS, the City provided a copy of the Responses to Comments received to all parties that commented on the Draft IS/MND in advance of the City of Chino City Council Meeting at which the City of Chino State Street Water Treatment Project will be considered; and,
WHEREAS, the Final IS/MND that includes the agreed Mitigation Monitoring and Reporting Program (MMRP) has been prepared pursuant to CEQA Guidelines and to the State of California Public Resources Code; and
WHEREAS, the proposed pr oject will not ha ve a sign ificant ad verse imp act o n the environment, as an Initial Study Checklist and a Mitigated Negative Declaration (MND) have been prepared for the proposed project. The Initial Study Checklist and MND identified anticipated environmental impacts resulting fr om t he propo sed project an d measures that will mitig ate identified impacts to an acceptable level; and
WHEREAS, following said public comments, the City Council held a public hearing on October 18, 2022, which was duly noticed for 7:00 p.m. or as soon thereafter as the matter could be heard, at the City Council Chambers of Chino City Hall and considered and clearly established the following findings of fact:

California Environmental Quality Act (CEQA) Findings:

1. The Chino City Council has considered the MND, dated July 2022, together with all comments received during the public review process. The MND reflects the independent judgment of the City Council and has been completed in compliance with CEQA, and is adequate for this proposed Project.

2. The City Council finds that through feasible mitigation measures placed upon the proposed Project, the potential significant environmental impacts have been eliminated and/or substantially mitigated to a level that is not significant.

3. The documents and other materials which constitute the record of proceedings upon which this decision is based are in the custody of City of Chino, Public Works Department, Capital Improvement Projects Division, 13220 Central Avenue, Chino, CA, 91710.

4. The City of Chino has prepared a Mitigation Monitoring and Reporting Program in order to mitigate or avoid significant effects on the environment resulting from the Project.

The approved Project description is included in the Mitigation Monitoring and Reporting Program for the Project.

NOW, THEREFORE, BE IT RESOLVED, by the City Council of the City of Chino as follows; Section 1. The City Council finds that the above recitals are true and correct and incorporates them herein.

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Section 2. The City Council hereby adopts a Mitigated Negative Declaration for the State Street Water Treatment Facility Proje ct, including th e Mitigation Monitoring an d Reporting Program for the Project. The City Council further directs that a Notice of Determination be filed with the County of San Bernardino County Clerk of the Board and the California Office of Planning and Research State Clearinghouse
Section 3. The City Clerk shall certify to the adoption of this Resolution.

APPROVED AND ADOPTED THIS 18TH DAY OF OCTOBER 2022.

EUNICE M. ULLOA, MAYOR

ATTEST:

ANGELA ROBLES, CITY CLERK

State of California )
County of San Bernardino ) ss
City of Chino )
I, Angela Robles, City Clerk of the City of Chino, do hereby certify the foregoing Resolution was duly adopted by the Chino City Council at a regular meeting held on the 18 th day of October 2022, by the following votes:

AYES: COUNCIL MEMBERS:

NOES: COUNCIL MEMBERS:

ABSENT: COUNCIL MEMBERS:

ANGELA ROBLES, CITY CLERK

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FINAL INITIAL STUDY

FOR THE

CITY OF CHINO

WA212 STATE STREET WATER TREATMENT

PROJECT

WELL 14 ON-SITE WELLHEAD

WELL 12 OFF-SITE WELLHEAD

Prepared for:

City of Chino
13220 Central Avenue
Chino, California 91710

Prepared by:

Tom Dodson & Associates
P.O. Box 2307
San Bernardino, California 92406
(909) 882-3612

October 2022

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City of Chino
State Street Water Treatment Project INITIAL STUDY

TOM DODSON & ASSOCIATES Page ii

TABLE OF CONTENTS

Comment Letters and Responses to Comments

Mitigation Monitoring and Reporting Program

Draft Initial Study (w/ Appendices)

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TOM DODSON & ASSOCIATES

COMMENT LETTERS AND

RESPONSES TO COMMENTS

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TOM DODSON & ASSOCIATES
PHYSICAL ADDRESS: 2150 N. ARROWHEAD AVENUE SAN BERNARDINO, CA 92405 MAILING ADDRESS: PO BOX 2307, SAN BERNARDINO, CA 92406
TEL (909) 882-3612 • FAX (909) 882-7015
E-MAIL [email protected]

MEMORANDUM

September 29, 2022

From: Kaitlyn Dodson-Hamilton

To: Ms. Maria Fraiser

Subj: Completion of the Mitigated Negative Declaration for the City of Chino State Street Water Treatment Project (SCH# 2022070197)

The City of Chino (City) received a total of 4 written comments on the proposed Mitigated Negative Declaration for the City of Chino State Street Water Treatment Project (SCH# 2022070197). The California Environmental Quality Act (CEQA) requires a Mitigated Negative Declaration to consist of the Initial Study; copies of the comments; any responses to comments as compiled on the following pages; and any other project -related material prepared to address issues evaluated in the Initial Study/Mitigated Negative Declaration (IS/MND).

For this project, the original Initial Study will be utilized as one component of the Final Mitigated Negative Declaration (MND) package. The attached responses to comments, combined with the Initial Study and the Mitigation Monitoring and Reporting Program, constitute the Final MND package that will be used by the City to consider the environmental effects of implementing the proposed project.

The following parties submitted comments. The comments in th ese letters are addressed in the attached Responses to Comments:

1. South Coast Air Quality Management District

2. City of Montclair

3. Chino Basin Watermaster

4. Inland Empire Utilities Agency

Because mitigation measures are required for this project to reduce potentially significant impacts to a less than significant level, the Mitigation Monitoring and Reporting Program (MMRP) attached to this package is required to be adopted as part of this Final MND package. The MMRP has been incorporated by reference to this package for approval and implementation. The proposed adoption of the Mitigated Negative Declaration for this Project is planned to occur on October 18, 2022 at 7:00 p.m. at the regular Chino City Council meeting.

Do not hesitate to give me a call if you have any questions regarding the contents of this package.

Kaitlyn Dodson-Hamilton

Attachments

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SENT VIA E-MAIL: August 10, 2022
[email protected]
Maria Fraser, CIP Engineering Manager
City of Chino
13220 Central Avenue
Chino, California 91710

Mitigated Negative Declaration (MND) for the Proposed
City of Chino State Street Water Treatment Project (Proposed Project)

South Coast Air Quality Management District (S outh Coast AQMD) staff appreciates the opportunity to comment o n the above-mentioned document. The City of Chino is the California Environmental Quality Act (CEQA) Lead Agency for the Proposed Project. The following comments include recommended revision to information about South Coast AQMD rules and permits, and the identi fication of South Coast AQMD is a Responsible Agency that the L ead Agency should incorporate in the Final MND.

South Coast AQMD Staff’s Summary of Project Information in the MND Based on the MND, the Lead Agency propose s developing a new centralized State Street Water Treatment Facility (State Street WTF) that will treat water from Wells 12 and 14 for nitrate, perchlorate, and 1,2,3-TCP1. The Proposed Project also includes the installation of off-site water transmission and brine pipe lines, improvements of existing wells, and site improvements 2.

Treatment is anticipated to include pretreatment through sand separators followed by cartridge filters (solids removal), 1,2,3 -TCP Removal through Granular Activated Carbon (GAC), perchlorate and nitrate removal through a proprietary ion exchange (IX) treatment system, then disinfection and storage in Reservoir 5 before distribution3. The water treatment facility will have a capacity to treat up to 4,000 gallons per minute (GPM), and the anticipated extraction rate from each well is 2,000 GPM4. The Project site is approximately 5 acres in San Bernardino County’s Valley Region5. The Project is located at 10762 Benson on the southwest corner of the intersection of West State Street and South Benson Avenue6. Based on a review of aerial photographs, South Coast AQMD staff found that the nearest sensitive receptor (e.g., residence - mobile home park) is within 100 feet southwest of the Proposed Project. Construction of the Proposed Project is anticipated to begin in mid-2022. Operation is expected to start in 2023.

1 MND. Project Description. Page 3
2 Ibid. Project Description. Page 3.
3 Ibid. Project Description. Page 3.
4 Ibid. Project Description. Page 3.
5 Ibid. Existing Settings. Page 3.
6 Ibid. Introduction. Page 1.
1-1
Comment Letter #1
1-2

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RESPONSES TO COMMENTS
LETTER #1

SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT

1-1 The comment is noted and will be made availabl e to City decision-makers prior to a decision on the proposed project. The City understands that, in the event that the project would require a permit from South Coast Air Quality Management District (SCAQMD), SCAQMD would be a responsible agency under CEQA.

1-2 The comment is noted and will be made available to City decision-makers prior to a decision on the proposed project. The project description summary outlined in this comment is accurate.

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Maria Fraser August 10, 2022
2 South Coast AQMD Staff’s Comments

Responsible Agency and South Coast AQMD Permits

In the event that the Proposed Project or implementation of the Proposed Project requires the use of stationary equipment, permits from South Coast AQMD are required unless a written permit is not required7. The Lead Agency should use good faith effort to include a discussion of equipment that will require South Coast AQMD permits and identify South Coast AQMD as a Responsible Agency for the Proposed Project in the Final MND.

In addition to South Coast AQMD Rules 402 and 403 that were discussed in the MND, the Proposed Project will be subject to additional permitting requirements that should be discussed in the Final MND. Please contact South Coast AQMD’s Engineering and Permitting staff at (909) 396-3385 or visit South Coast AQMD's web page for more general information on permits :
http://www.aqmd.gov/home/permits.

Conclusion
According to CEQA Guidelines Section 15074, prior to approving the Proposed Project, the Lead Agency shall consider the MND for adoption together with any comments received during the public review process. Please provide South Coast AQMD with written responses to all comments contained herein prior to the adoption of the Final MND. When the Lead Agency’s position is at variance with recommendations raised in the comments, the issues raised in the comments should be addressed in detail, giving reasons why specific comm ents and suggestions are not accepted.

There should be good faith and reasoned analysis in response. Conclusory statements unsupported by factual information do not facilitate the purpose and goal of CEQA on public disclosure and are not meaningful, informative, or useful to decision-makers and the public who are interested in the Proposed Project.

South Coast AQMD staff is available to work with the Lead Agency to address any air quality questions that may arise from this comment letter. Please contact Dung Nguyen, Air Quality Specialist, at [email protected] should you have any questions.

Sincerely,
Michael Morris
Mike Morris
Planning & Rules Manager
Planning, Rule Development & Implementation

MM:DN
SBC220726-05
Control Number

7 South Coast AQMD. Rule 219. Accessed at: http://www.aqmd.gov/docs/default-source/rule-book/reg-ii/Rule-219.pdf. 1-4
1-3

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1-3 The City has reviewed the applicability of the referenced SCAQMD permits that might be required for a project of this type including Rule 219 exemptions, 1 the list of permit applications for various equipment requiring permits,2 common operations and equipment requiring a permit, 3 and Rule 222, 4 and none of the equipment types appear to apply to the equipment that would be used as part of the operations of this project. Thus, no additional permitting requirements require discussion as part of the proposed IS/MND.

1-4 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. The City believes that the statements identified herein are factual and comply with the CEQA guidelines and as such, meet SCAQMD’s request for meaningful, informative statements provided as responses to comments. The contact information provided will be retained in the project file and the City will continue to work with SCAQMD should any further air quality -related questions arise.

1 http://www.aqmd.gov/docs/default-source/rule-book/reg-ii/Rule-219.pdf 2 http://www.aqmd.gov/home/permits/permit-application-forms 3 http://www.aqmd.gov/home/permits/common-operations-and-equipment 4 http://www.aqmd.gov/docs/default-source/rule-book/reg-ii/rule-222.pdf?sfvrsn=4

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Comment Letter #2
2-1
2-2
2-3

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RESPONSE TO COMMENT
LETTER #2

CITY OF MONTCLAIR

2-1 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project.

2-2 The City of Chino will provide the City of Montclair with the plans for construction within City of Montclair roadways once the plans have been finalized. The City of Chino will apply for an encroachment permit once the plans have been finalized and the City of Chino is ready to move forward with construction. MM TRAN-1 would ensure that a traffic control plan is implemented during construction and approved by both Cities prior to construction.

Additionally, MM NOI-2, requires construction to be limited to the hours of 7 a.m. and 8 p.m. on any given day as stipulated by the City of Montclair’s Municipal Code, Chapter

6.12. Based on the updated information provided in this comment, this mitigation measure (MM) shall be modified and shall limit the hours of construction within the City of Montclair even further. The modified MM is hereby incorporated by reference into the Final IS/MND:

NOI-2 Construction shall be conducted during the hours identified as acceptable by the jurisdiction within which each construction activity takes place. Throughout the entirety of the project footprint, except for within the City of Montclair , construction between the hours of 7:00 a.m. and 6:00 p.m. Monday through Friday. Extended hours of construction, and construction on weekends , or reduced hours of construction apply to are allowable at various points within the project footprint depending on the jurisdiction as follows: in the City of Montclair, construction shall be limited to the hours of 7:00 a.m. and 5:00 8:00 p.m. Monday to Thursday on any given day ; in the City of Chino within the hours of 7:0 0 a.m. and 6:00 p.m. Monday through Saturday, with no construction allowed on Sundays and federal holidays; in Unincorporated San Bernardino County construction shall be limited to between 7:00 a.m. and 7:00 p.m., except Sundays and Federal holidays. The above limitations on construction hours shall apply in all cases except where a declared emergency exists.

The above modification constitutes a modification to a mitigation measure that does not require recirculation pursuant to CEQA Section 15073.5(c). The above measure would be equal to or more effective than that which was incorporated into the Initial Study.

2-3 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. The statement in this comment is reflective of the content in the IS/MND.

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Comment Letter #3
3-1
3-2
3-3

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RESPONSE TO COMMENT
LETTER #3

CHINO BASIN WATERMASTER

3-1 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. The City appreciates Watermaster’s support of the project.

3-2 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. This comment outlines Watermaster’s role as an entity created by the court to oversee implementation of the Judgement and thereby maximize beneficial use of the Chino Groundwater Basin.

3-3 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. This comment refers to the OBMP Phase I Report within which pumping was identified as the most li kely cause of land subsidence and ground fissuring within MZ-1 of the Basin.

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3-4
3-5

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3-4 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. This comment outlines the Peace Agreement, OBMP, and OBMP Implementation Plan, including Program Element 4, therein, which calls for management of MZ -1 to minimize subsidence and fissuring in the short term, and abate subsidence and fissuring in the long term through data collection to better understand the cause of these phenomena.

3-5 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. This comment outlines the development of and continued actions by the MZ-1 Technical Committee to develop the Interim Management Plan , which developed Guidance Criteria for parties that pump in MZ-1. The Guidance Criteria formed the basis for the MZ -1 Subsidence Management Plan, which was updated in 2015 and renamed the Chino Basin Subsidence Management Plan, which created a Ground Level Monitoring Program, the results and interpretations each year a re used to prepare recommendations to abate subsidence and fissuring for future activities within the Basin.

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3-5
cont’d
3-6
3-7

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3-6 As recommended in this comment, the City will continue to participate in the Ground Level Monitoring Program to ensure that the pumping of the wells that would supply the water to be treated by the new State Street Water Treatment Plant d o not adversely impact the potential for subsidence and fissuring within MZ -1 and the whole of the Chino Groundwater Basin. Participation in the continued monitoring efforts and compliance with recommendations by Watermaster via the Ground Level Monitoring Program would ensure that the proposed project would not result in significant impacts on the Chino Groundwater Basin.

3-7 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. The contact information provided within this comment shall be retained in the project file.

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August 15, 2022

Ms. Maria Fraser, PE, QSD/P
CIP Engineering Manager
City of Chino Public Works
13220 Central Avenue
Chino, CA 91710

Subject: Written Comments for Notice of Intent to Adopt Mitigated Negative Declaration and Environmental Checklist for the City of Chino State Street Water Treatment Project

Dear Ms. Fraser,

The Inland Empire Utilities Agency (IEUA) is in receipt of the City of Chino (City) Notice of Intent to Adopt a Mitigated Negative Declaration (MND) dated July 15, 2022 and has received the Initial Study (Study) for the State Street Water Treatment Project (State Street WTP) through Tom Dodson & Associates.

IEUA is a stakeholder of the project as we currently operate four Regional Water Recycling Facilities:

Regional Water Recycling Plant No. 1 (RP-1), Regional Water Recycling Plant No. 4 (RP-4), Carbon Canyon Water Recycling Facility (CCWRF), and Regional Water Recycling Plant No. 5 (RP -5) that provide water recycling services to our wastewater contracting agencies, the cities of Chino, Chino Hills, Ontario, Montclair, Fontana, Upland, and Cucamonga Valley Water District. IEUA and our wastewater contracting agencies abide by the terms of the Chino Basin Regional Sewage Service Contract (Regional Contract) for wastewater treatment services.

In review of the Study, the section on Hydrology and Water Quality of the MND §X(b) (Page 88 of 132), is a cause of concern for IEUA. The proposed disposal of the backwash wastewater of the Granular Activated Carbon (GAC) to the local sewer system as described under 1,2,3-TCP Treatment (Page 6 of 132) and under Waste Handling (Page 11 of 132) should be reevaluated. IEUA disagrees with the study’s approach as the backwash from the GAC will be potentially laden with 1 ,2,3-TCP and other contaminants from the treatment of groundwaters of wells 12 and 14 . The proposed discharge of this wastewater to the local sewer(s) of the cities of Montclair and/or Ontario will eventually reach the Agency’s water recycling facilities and potentially jeopardize IEUA’s recycled water and groundwater recharge program. Therefore, IEUA objects to this proposed method of disposal and recommends the City of Chino to evaluate other alternatives.

Comment Letter #4
4-1
4-2

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RESPONSES TO COMMENTS
LETTER #4

INLAND EMPIRE UTILITIES AGENCY

4-1 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. The City understands IEUA’s role as a stakeholder of the project due to the regional water recycling facilities it operates.

4-2 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. The City understands IEUA’s concerns regarding the use of the sewer system for GAC backwash. GAC Backwashing and flushing is an infrequent occurrence that is expected to be required every 6 to 12 months. The project is investigating the feasibility of two potential replacement alternatives that do not involve a discharge to the sewer of GAC backwash:

A) GAC Backwash and flushing water would be diverted to an onsite lined retention pond.

The pond would be able to use natural solar evaporation in an attempt to lower the overall volume of water requiring d isposal. The residual water in the retention pond would be discharged to the NRWS brine line using the proposed connection through IEUA to disposal of the IX regeneration brine. The water would be pumped into the brine line to allow for a controlled discha rge of the water. This option is not expected to provide a significant environmental impact because the water would meet IEUA brine line discharge requirements.

B) The City may elect to use a nearby storm water drain to dispose of GAC backwash or flush water. The flow and water quality requirements of the discharged flow would be coordinated and permitted to meet the State Regional Water Control Board requirements. This option is not expected to provide a significant environmental impact because the water wou ld meet State Regional Water Control Board discharge requirements.

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In addition, in reference to Hazards and Hazardous Material of the MND §IX(a), HAZ 2 and HAZ3 (Page 83 of 132), the City should review alternatives to replace the chlorine gas disinfection to ensure IEUA staff are not subject to any potential exposure to chlorine during routine inspections of the facility , as these inspections will be required once the Non-Reclaimable Wastewater System (NRWS) Industrial Wastewater Discharge Permit is issued.

If the City has any questions regarding IEUA’s comments above, please contact me at (909) 993 -1917 or [email protected].

Sincerely,

INLAND EMPIRE UTILITIES AGENCY

_______________________________
Michael Hurley
Director of Planning and Resources

Copy: Shivaji Deshmukh, IEUA
Christiana Daisy, IEUA
Kristine Day, IEUA
Alyson Piguee, IEUA

4-3
4-4

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4-3 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. The City understands IEUA’s concerns related to the use of chlorine gas. Chlorine gas is a commonly used disinfectant throughout the US and is currently used at other treatment facilities owned and operated by the City of Chino. Chlorine gas does have a potentially high risk in the event of a major leak, however this risk is managed through implementation of appropriate engineering and administrative controls. The chlorine gas system is designed to operate under vacuum (negative pressure) to minimize release in the event of a leak. The system also includes a chlorine gas leak detector , which is regularly tested to notify operators via Supervisory Control and Data Acquisition (SCADA) and would also warn people local to the chlorination buildings with a light and siren on the building exterior. A Standard Operating Procedure (SOP) will be developed to notify visitors (routine and occasional) to site of the location of chlorine gas and emergency response plan , which would be further enforced through the modified MM HAZ-3, below. During the preliminary design development, the City of Chino considered alternative disinfection methods , such as onsite hypochlorite generation (OSHG) and bulk sodium hypochlorite; however, chlorine gas was selected as the preferred solution. The location of the chlorine gas facilities proposed for the State Street site are in separate buildings to the location where IEUA staff would access the flow and water quality instruments for th e brine line disposal system when visiting the site in the future. Based on the concerns raised in this comment, MM HAZ-3 shall be modified to provide further safety measure clarifications regarding chlorine gas . The modified MM is hereby incorporated by reference into the Final IS/MND:

HAZ-3 Prior to occupancy of any site for which storage of any acutely hazardous material will be required, such as chlorine gas, modeling of pathways of release and potential exposure of the public to any released hazardous material shall be completed and specific measures, such as secondary containment , implementation of appropriate engineering and administrative controls, creation of a Standard Operating Procedure (SOP) to notify visitors (routine and ad-hoc) to site of the location of chlorine gas and emergency response plan, shall be implemented to ensure that sensitive receptors will not be exposed to significant health threats based on the toxic substance involved.

The above modification constitutes a modifica tion to a mitigation measure that does not require recirculation pursuant to CEQA Section 15073.5(c). The above measure would be equal to or more effective than that which was incorporated into the Initial Study.

4-4 The comment is noted and will be made available to the City decision-makers for consideration prior to a decision on the proposed project. The contact information provided within this comment shall be retained in the project file and the City will reach out with any questions on the contents of this comment letter.

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TOM DODSON & ASSOCIATES

MITIGATION MONITORING AND

REPORTING PROGRAM

12.13.b
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MITIGATION MONITORING AND REPORTING PROGRAM (MMRP)

MMRP REQUIREMENTS

Public Resources Code (PRC) Section 21081.6 (enacted by the passage of Assembly Bill [AB] 3180) mandates that the following requirements shall apply to all reporting or mitigation monitoring programs:
• The public agency shall adopt a reporting or monitoring program for the changes made to the project or conditions of project approval in order to mitigate or avoid significant effects on the environment. The reporting or monitoring program shall be designed to ensure compliance during project implementation. For those changes which have been required or incorporated into the project at the request of a Responsible Agency or a public agency having jurisdiction by law over natural resources affected by the project, that agency shall, if so requested by the Lead Agency or a Responsible Agency, prepare and submit a proposed reporting or monitoring program. • The Lead Agency shall specify the location and custodian of the documents o r other material, which constitute the record of proceedings upon which its decision is based. A public agency shall provide the measures to mitigate or avoid significant effects on the environment that are fully enforceable through permit conditions, agreements, or other measures. Conditions of project approval may be set forth in referenced documents which address required mitigation measures or in the case of the adoption of a plan, policy, regulation, or other p roject, by incorporating the mitigation measures into the plan, policy, regulation, or project design.

Prior to the close of the public review period for a draft Environmental Impact Report (EIR) or Mitigated Negative Declaration (MND), a Responsible Agency, or a public agency having jurisdiction over natural resources affected by the project, shall either submit to the Lead Agency complete and detailed performance objectives for mitigation measures which would address the significant effects on the environment identified by the Responsible Agency or agency having jurisdiction over natural resources affected by the project, or refer the Lead Agency to appropriate, readil y available guidelines or reference documents. Any mitigation measures submitted to a Lead Agency by a Responsible Agency or an agency having jurisdiction over natural resources affected by the project shall be limited to measures that mitigate impacts to resources, which are sub ject to the statutory authority of, and definitions applicable to, that agency. Compliance or noncomplianc e by a Responsible Agency or agency having jurisdiction over natural resources affected by a project with that requirement shall not limit that authority of the Responsible Agency or age ncy having jurisdiction over natural resources affected by a project, or the authority of the Lead Agency, to approve, condition, or deny projects as provided by this division or any other provision of law.

MMRP PROCEDURES

The Mitigation Monitoring and Reporting Program (MMRP) has been prepared in compliance with PRC Secti on 21081.6. It describes the requirements and procedures to be followed by the City of Chino to ensure that all mitigation measures adopted as part of the Proposed Project will be carried out as described in the Draft IS/MND. Below lists each of the mitigation measures specified in the Draft IS/MND and identifies the party or parties responsible for implementation and monitoring of each measure.

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Mitigation Measure Implementation Schedule Verification I.(d) Aesthetics
AES-1 A facilities lighting plan shall be prepared for both project sites and shall demonstrate that glare from operating and safety night lights that may create light and glare affecting adjacent occupied property are sufficiently shielded to prevent light and glare from spilling into occupied structures or rail corridor. This plan shall specifically indicate that the lighting doesn’t exceed

1.0 lumen at the nearest residence or the rail corridor to any lighting located within the project footprint. This plan shall be implemented by the City to minimize light or glare intrusion onto adjacent properties.

A lighting plan shall be completed prior
to construction of the onsite structure
and lighting installed accordingly during
construction

A copy of the lighting design or plan shall
be retained in the project file, and City
field inspectors shall verify that the
design/plan is being implementing
without adverse impact on adjacent light
sensitive uses. Field notes from
inspections shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification III.(b). Air Quality
AQ-1 Fugitive Dust Control. The following measures shall be incorporated into Project plans and specifications for
implementation:
• Apply soil stabilizers or moisten inactive areas.
• Water exposed surfaces as needed to avoid visible dust leaving the construction site (typically 2-3 times/day). • Cover all stock piles with tarps at the end of each day or as needed.
• Provide water spray during loading and unloading of
earthen materials.
• Minimize in-out traffic from construction zone.
• Cover all trucks hauling dirt, sand, or loose material and require all trucks to maintain at least two feet of freeboard. • Sweep streets daily if visible soil material is carried out from the construction site.

This measure shall be implemented during construction, and shall be included in the construction contract as a contract specification.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction.

A copy of the construction contract
including this air mitigation measures
shall be retained in the project file.

Verification of implementation shall be
based on field inspections by City of
Chino inspection personnel that verify
the air quality measures have been
implemented as required in these
measures. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

12.13.b
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Mitigation Measure Implementation Schedule Verification III.(b). Air Quality
AQ-2 Exhaust Emissions Control. The following measures shall be incorporated into Project plans and specifications for
implementation:
• Utilize well-tuned off-road construction equipment.
• Establish a preference for contractors using Tier 3 or better heavy equipment.
• Enforce 5-minute idling limits for both on-road trucks and off-road equipment.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction.

A copy of the construction contract
including this air mitigation measures
shall be retained in the project file.

Verification of implementation shall be
based on field inspections by City of
Chino inspection personnel that verify
the air quality measures have been
implemented as required in these
measures. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification IV.(a). Biological Resources
BIO-1 Nesting bird surveys shall be conducted by a qualified avian biologist no more than three (3) days prior to vegetation clearing or ground disturbance activities. Preconstruction surveys shall focus on both direct and indirect evidence of nesting, including nest locations and nesting behavior. The qualified avian biologist will make every effort to avoid potential nest predation as a result of survey and monitoring efforts. If active nests are found during the preconstruction nesting bird surveys, a Nesting Bird Plan (NBP) shall be prepared and implemented by the qualified avian biologist. At a minimum, the NBP shall include guidelines for addressing active nests, establishing buffers, ongoing monitoring, establishment of avoidance and minimization measures, and reporting. The size and location of all buffer zones, if required, shall be based on the nesting species, individual/pair’s behavior, nesting stage, nest location, its sensitivity to disturbance, and intensity and duration of the disturbance activity. To avoid impacts to nesting birds, any grubbing or vegetation removal should occur outside peak breeding
season (typically February 1 through September 1).

Construction shall occur outside of the
nesting season or a copy of the field
survey documenting no nesting birds
shall be completed prior to initiating
construction within the nesting season.

City of Chino personnel shall document
the dates of construction. If construction
is proposed to occur within the nesting
season, a copy of the field survey docu-
menting the absence of nesting birds
shall be retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification V(a). Cultural Resources
CUL-1 Should any cultural resources be encountered during construction of these facilities, earthmoving or grading activities in the immediate area of the finds shall be halted and an onsite inspection shall be performed immediately by a qualified archaeologist. Responsibility for making this determination shall be with the City. The archaeological professional shall assess the find, determine its significance, and make recommendations for appropriate mitigation
measures within the guidelines of the California Environmental Quality Act.

Any response to exposed resources
shall occur during construction. Any
reports documenting management and
findings for accidentally exposed
resources shall be completed within one
year of the discovery.

A copy of the Program shall be retained
in the project file. Verification of
implementation shall be based on field
inspections by City of Chino inspection
personnel that verify the archaeological
monitoring program is being imple-
mented by the contractor as required in
this measure. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification V(a). Cultural Resources
CUL-2 Should human remains or funerary objects be encountered during any activities associated with the project, work in the immediate vicinity (within a 100-foot buffer of the find) shall cease and the County Coroner shall be contacted pursuant to State Health and Safety Code §7050.5 and that code enforced for the duration of the project.

This measure shall be implemented
during construction if human remains are
exposed during construction

The City of Chino shall retain all records
of the discovery and management
actions taken in regard to human
remains in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

12.13.b
State Street Water Treatment Project (WA212) Initial
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Mitigation Measure Implementation Schedule Verification VII.(b). Geology and Soils
GEO-1 Stored backfill material shall be covered with water resistant material during periods of heavy precipitation to reduce the potential for rainfall erosion of the material. If covering is not feasible, then measures such as the use of straw bales or sand bags shall be used to capture and hold eroded material on the project site for future cleanup.

These measures shall be identified in the
project Stormwater Pollution Prevention
Plan (SWPPP) and implemented during
construction.

A copy of the SWPPP shall be retained
in the project file. Verification of
implementation shall be based on field
inspections by City of Chino inspection
personnel that verify the SWPPP BMPs
have been implemented as required in
this measure. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification VII.(b). Geology and Soils
GEO-2 Excavated areas shall be properly backfilled and compacted.

Paved areas disturbed by this project will be repaved in such a manner that pipeline connections within adjacent roadways and other disturbed areas are returned to as near the pre- project condition as is feasible.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction.

A copy of the construction contract
including this geology/soils mitigation
measure shall be retained in the project
file. Verification of implementation shall
be based on field inspections by City of
Chino inspection personnel that verify
the geology/soils measures have been
implemented as required in these
measures. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

12.13.b
State Street Water Treatment Project (WA212) Initial
Packet Pg. 244
Mitigation Measure Implementation Schedule Verification VII.(b). Geology and Soils
GEO-3 All exposed, disturbed soil (trenches, stored backfill, etc.) will be sprayed with water or soil binders twice a day or more frequently if fugitive dust is observed migrating from either of the well sites within which the water facilities are being installed.

These measures shall be identified in the
project Stormwater Pollution Prevention
Plan (SWPPP) and implemented during
construction.

A copy of the SWPPP shall be retained
in the project file. Verification of
implementation shall be based on field
inspections by City of Chino inspection
personnel that verify the SWPPP BMPs
have been implemented as required in
this measure. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification VII.(b). Geology and Soils
GEO-4 The length of trench which can be left open at any given time will be limited to that needed to reasonably perform
construction activities. This will serve to reduce the amount of backfill stored onsite at any given time.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction.

A copy of the construction contract
including this geology/soils mitigation
measure shall be retained in the project
file. Verification of implementation shall
be based on field inspections by City
inspection personnel that verify the
geology/soils measures have been
implemented as required in these
measures. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

12.13.b
State Street Water Treatment Project (WA212) Initial
Packet Pg. 245
Mitigation Measure Implementation Schedule Verification VII.(b). Geology and Soils
GEO-5 The City shall identify any additional construction-related erosion and sedimentation prevention BMPs to ensure that the discharge of surface water does not cause erosion
downstream of the discharge point. This shall be
accomplished by reducing the energy of any site discharge through an artificial energy dissipater or equivalent device. If any substantial erosion or sedimentation occurs, any erosion or sedimentation damage shall be restored to pre-discharge conditions.

The BMPs identified pursuant to this
measure, and the requirement that
substantial erosion or sedimentation be
restored to pre-discharge conditions
shall be included in the construction
contract as a contract specification and
implemented by the contractor during
construction.

A copy of the construction contract
including this geology/soils mitigation
measure shall be retained in the project
file. Verification of implementation shall
be based on field inspections by the City.

Field notes documenting verification
shall be retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification VII.(f). Geology and Soils
GEO-6 Should any paleontological resources be encountered during construction of these facilities, earthmoving or grading activities in the immediate area of the finds shall be halted and an onsite inspection should be performed immediately by a qualified paleontologist. Responsibility for making this determination shall be with the City’s onsite inspector. The paleontological professional shall assess the find, determine its significance, and determine appropriate mitigation
measures within the guidelines of the California Environmental Quality Act that shall be implemented to minimize any impacts to a paleontological resource.

Any response to exposed resources
shall occur during construction. Any
reports documenting management and
findings for accidentally exposed
resources shall be completed within one
year of the discovery.

City of Chino shall be notified within
24-hours of accidental exposure of any
paleontological resources. A copy of
initial findings shall be provided to the
City of Chino and retained in the project
file. A copy of the final report shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

12.13.b
State Street Water Treatment Project (WA212) Initial
Packet Pg. 246
Mitigation Measure Implementation Schedule Verification IX.(a). Hazards and Hazardous Materials
HAZ-1 A Hazardous Materials Business Plan prepared and submitted to the Certified Unified Program Agency shall incorporate best management practices designed to minimize the potential for accidental release of such chemicals and shall meet the standards required by California law for Hazardous Materials Business Plans. The facility managers shall implement these measures to reduce the potential for accidental releases of hazardous materials or wastes. The Hazardous Materials
Business Plan shall be approved prior to operation of the facilities proposed by this project.

The Business Plan shall be completed
prior to operation of the facility.

A copy of the Business Plan shall be
retained in the project file and shall be
submitted to the City or County for their
records. This Plan shall be retained at
the Project site and made available to
employees working at the facility. Site
inspections shall be performed to ensure
compliance with the best management
practices outlined in the Business Plan.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification IX.(a). Hazards and Hazardous Materials
HAZ-2 The Hazardous Materials Business Plan shall assess the potential accidental release scenarios and identify the equipment and response capabilities required to provide immediate containment, control, and collection of any released hazardous material. Prior to issuance of the certificate of occupancy, the proposed project facilities shall ensure that necessary equipment has been installed and training of
personnel has occurred to obtain sufficient resources to control and prevent the spread of any accidentally released hazardous or toxic materials.

The Business Plan shall be completed
prior to operation of an individual facility.

A copy of the Business Plan shall be
retained in the project file. This Plan shall
be retained at the Project site and made
available to employees working at the
facility. Site inspections shall be
performed to ensure adequate
equipment has been provided and
personnel have been adequately trained
in accordance with the Business Plan.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

12.13.b
State Street Water Treatment Project (WA212) Initial
Packet Pg. 247
Mitigation Measure Implementation Schedule Verification IX.(a). Hazards and Hazardous Materials
HAZ-3 Prior to occupancy of any site for which storage of any acutely hazardous material will be required, such as chlorine gas, modeling of pathways of release and potential exposure of the public to any released hazardous material shall be completed and specific measures, such as secondary containment,
implementation of appropriate engineering and administrative controls, creation of a Standard Operating Procedure (SOP) to notify visitors (routine and ad-hoc) to site of the location of chlorine gas and emergency response plan, shall be
implemented to ensure that sensitive receptors will not be exposed to significant health threats based on the toxic substance involved.

The modeling shall be completed prior to
operation of a given proposed facility and
measures to protect sensitive receptors
implemented during operation.

A copy of the results of the modeling and
any measures developed to minimize
accidental exposure to hazardous
materials shall be retained in the Project
file. Site inspections shall be performed
to ensure the proper procedures
pertaining to storage and handling of
acutely hazard waste are adhered to.

Source Responsible Party Status / Date / Initials
Initial Study &
Responses to Comments City of Chino

Mitigation Measure Implementation Schedule Verification IX.(a). Hazards and Hazardous Materials
HAZ-4 All hazardous materials during both operation and construction of the proposed project facilities shall be delivered to a licensed treatment, disposal, or recycling facility and be disposed of in accordance with State and federal law.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction.

Additionally, this measure shall be
implemented ongoing during operation.

A copy of the construction contract
including this hazards mitigation
measure shall be retained in the project
file. Verification of implementation shall
be based on field inspections by the City.

Field notes documenting verification
shall be retained in the project file.

During operations, records shall be kept
documenting all hazardous waste
disposal and site inspections by the City
shall be performed to ensure adherence
to this measure.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

12.13.b
State Street Water Treatment Project (WA212) Initial
Packet Pg. 248
Mitigation Measure Implementation Schedule Verification IX.(a). Hazards and Hazardous Materials
HAZ-5 Before determining that an area contaminated as a result of an accidental release during project operation or construction is fully remediated, specific thresholds of acceptable clean-up shall be established and sufficient samples shall be taken and tested within the contaminated area to verify that these clean- up thresholds have been met in compliance with State and federal law.

This measure shall be implemented
following an accidental spill of any
hazardous material at any location within
the project footprint.

A copy of the specific threshold used for
a spill shall be retained in the project file,
and a copy of the sample test data
verifying clean-up of the site shall also
be retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification IX.(b). Hazards and Hazardous Materials
HAZ-6 All accidental spills or discharge of hazardous material during construction activities shall be reported to the Certified Unified Program Agency and shall be remediated in compliance with applicable federal, State, and local regulations regarding cleanup and disposal of the contaminant released. The
contaminated waste shall be collected and disposed of at a licensed disposal or treatment facility. This measure shall be incorporated into the Stormwater Pollution Prevention Plan (SWPPP) prepared for the proposed State Street Water
Treatment Project facilities. Prior to accepting the site as remediated, the area contaminated shall be tested to verify that any residual concentrations meet the standard for future residential or public use of the site.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction, and shall
be included as a measure in the
SWPPP.

A copy of the SWPPP and construction
contract shall be retained in the project
file. Verification of implementation shall
be based on field inspections by IEUA.

Field notes documenting verification
shall be retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

12.13.b
State Street Water Treatment Project (WA212) Initial
Packet Pg. 249
Mitigation Measure Implementation Schedule Verification X.(a). Hydrology and Water Quality
HYD-1 The Project-Specific Water Quality Management Plan (WQMP) which defines catch basins and other drainage capture
mechanisms as permanent Best Management Practices shall be implemented to prevent long-term surface runoff from discharging pollutants from site on which construction has been completed. The WQMP shall be implemented with the goal of achieving a reduction in pollutants following
construction to control urban runoff pollution to the maximum extent practicable based on available, feasible best
management practices at the time of construction. The
stormwater discharge from the project site shall be treated to control pollutant concentrations for all pollutants, but especially for those identified pollutants that impair downstream surface water quality (Santa Ana River) at the time construction occurs. Source Control BMPs reduce the potential for urban runoff and pollutants from coming into contact with one another. Source Control BMPs that may be incorporated into the project are described in County’s Technical Guidance Manual (TGM).

This measure shall be incorporated into
the WQMP and these measures shall be
incorporated into the project design. The
WQMP BMPs shall be applicable for the
duration of project operation.

A copy of the WQMP and project design
shall be retained in the project file.

Verification of implementation shall be
based on field inspections by City of
Chino inspection personnel that verify
the WQMP BMPs have been imple-
mented as required in this measure.

Field notes documenting verification
shall be retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification X.(a). Hydrology and Water Quality
HYD-2 City of Chino shall require that the construction contractor prepare and implement a Storm Water Pollution Prevention Plan (SWPPP) which specifies Best Management Practices
(BMPs) that will prevent all construction pollutants from con- tacting stormwater and with the intent of keeping all products of erosion from moving offsite into receiving waters. The SWPPP shall include a Spill Prevention and Cleanup Plan that identifies the methods of containing, cleanup, transport and proper disposal of hazardous chemicals or materials released during construction activities that are compatible with applicable laws and regulations. BMPs to be implemented in the SWPPP may include but not be limited to:
• The use of silt fences;
• The use of temporary stormwater desilting or retention basins;

This measure shall be incorporated into
the SWPPP and construction contract
and implemented during construction.

A copy of the SWPPP and construction
contract shall be retained in the project
file. Verification of implementation shall
be based on field inspections by City of
Chino inspection personnel that verify
the SWPPP BMPs have been imple-
mented as required in this measure.

Field notes documenting verification
shall be retained in the project file.

12.13.b
State Street Water Treatment Project (WA212) Initial
Packet Pg. 250
Mitigation Measure Implementation Schedule Verification • The use of water bars to reduce the velocity of stormwater runoff;
• The use of wheel washers on construction equipment
leaving the site;
• The washing of silt from public roads at the access point to the site to prevent the tracking of silt and other pollutants from the site onto public roads;
• The storage of excavated material shall be kept to the minimum necessary to efficiently perform the construction activities required. Excavated or stockpiled material shall not be stored in water courses or other areas subject to the flow of surface water; and
• Where feasible, stockpiled material shall be covered with waterproof material during rain events to control erosion of soil from the stockpiles.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-1 The following construction noise control practices shall be implemented whilst constructing the proposed State Street Water Treatment Project within the entirety of the project footprint:
• Construction staging and activities shall be located in areas as far as practicable from sensitive receivers or in areas where receivers can be shielded from construction noise.
• Whenever practicable, construction activities shall be scheduled so as to avoid operating several pieces of
equipment simultaneously.
• All heavy-duty stationary construction equipment shall be placed so that emitted noise is directed away from the
nearest sensitive receivers.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with the
requirements in this measure. The
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

12.13.b
State Street Water Treatment Project (WA212) Initial
Packet Pg. 251
Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-2 Construction shall be conducted during the hours identified as acceptable by the jurisdiction within which each construction activity takes place. Throughout the entirety of the project footprint, except for within the City of Montclair, construction between the hours of 7:00 a.m. and 6:00 p.m. Monday through Friday. Extended hours of construction, and construction on weekends, or reduced hours of construction apply to are allowable at various points within the project footprint depending on the jurisdiction as follows: in the City of Montclair, construction shall be limited to the hours of 7:00 a.m. and 5:00 8:00 p.m. Monday to Thursday on any given day; in the City of Chino within the hours of 7:00 a.m. and 6:00 p.m. Monday through Saturday, with no construction allowed on Sundays and federal holidays; in Unincorporated San
Bernardino County construction shall be limited to between 7:00 a.m. and 7:00 p.m., except Sundays and Federal
holidays. The above limitations on construction hours shall apply in all cases except where a declared emergency exists.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study &
Responses to Comments City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-3 The City shall establish a noise complaint response program and shall respond to any noise complaints received for this project by measuring noise levels at the affected receptor site.

If the noise level exceeds an Ldn of 60 dBA exterior or an Ldn of 45 dBA interior at the receptor, the City will implement adequate measures (which may include portable sound
attenuation walls, use of quieter equipment, shift of
construction schedule to avoid the presence of sensitive receptors, etc.) to reduce noise levels to the greatest extent feasible.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

12.13.b
State Street Water Treatment Project (WA212) Initial
Packet Pg. 252
Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-4 All construction equipment be operated with mandated noise control equipment (mufflers or silencers). Enforcement will be accomplished by random field inspections by City personnel during construction activities.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-5 Equipment not in use for five minutes shall be shut off.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-6 Equipment shall be maintained and operated such that loads are secured from rattling or banging.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

12.13.b
State Street Water Treatment Project (WA212) Initial
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Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-7 Construction employees shall be trained in the proper operation and use of equipment consistent with these
mitigation measures, including no unnecessary revving of equipment.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-8 No radios or other sound equipment shall be used at this site unless required for emergency response by the contractor.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(b). Noise
NOI-9 During future initiation of construction activities with heavy equipment within 300 feet of occupied residences, vibration field tests shall be conducted at the nearest occupied
residences upon receipt. To the extent feasible, if vibrations exceed 72 VdB, the construction activities shall be revised (smaller equipment, reduced activity) to reduce vibration below this threshold.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification XVII.(a). Transportation / Traffic
TRAN-1 The construction contractor will provide adequate traffic management resources, as determined by the City of Chino.

The City shall require a construction traffic management plan for work in public roads that complies with the Work Area Traffic Control Handbook, or other applicable standard, to provide adequate traffic control and safety during excavation activities. The traffic management plan shall be prepared and approved by the City prior to initiation of excavation or pipeline construction. At a minimum this plan shall include how to minimize the amount of time spent on construction activities; how to minimize disruption of vehicle and
alternative modes of transport traffic at all times, but particularly during periods of high traffic volumes; how to maintain safe traffic flow on local streets affected by construction at all times, including through the use of adequate signage, protective devices, flag persons or police assistance to ensure that traffic can flow adequately during construction; the identification of alternative routes that can meet the traffic flow requirements of a specific area,
including communication (signs, webpages, etc.) with drivers and neighborhoods where construction activities will occur; and at the end of each construction day roadways shall be prepared for continued utilization without any significant roadway hazards remaining.

This measure shall be implemented
during construction.

Verification of implementation shall be
based on field inspections by City
inspection personnel that verify adequate
traffic management resources are being
used by the contractor as required in this
measure. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification XVII.(a). Transportation / Traffic
TRAN-2 The City shall require that all disturbances to public roadways be repaired in a manner that complies with the Standard Specifications for Public Works Construction
(green book) or other applicable County of San Bernardino standard design requirements.

This measure shall be implemented
during construction.

Verification of implementation shall be
based on field inspections by City
inspection personnel that verify adequate
traffic management resources are being
used by the contractor as required in this
measure. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XVIII.(a). Tribal Cultural Resources
TCR-1 Retain a Native American Monitor Prior to Commencement of Ground-Disturbing Activities

A. The project applicant/lead agency shall retain a Native American Monitor from or approved by the Gabrieleño
Band of Mission Indians – Kizh Nation. The monitor shall be retained prior to the commencement of any “ground-
disturbing activity” for the subject project at all project locations (i.e., both on-site and any off-site locations that are included in the project description/definition and/or required in connection with the project, such as public improvement work). “Ground- disturbing activity” shall
include, but is not limited to, demolition, pavement
removal, potholing, auguring, grubbing, tree removal,
boring, grading, excavation, drilling, and trenching.

B. A copy of the executed monitoring agreement shall be submitted to the Lead Agency prior to the earlier of the commencement of any ground-disturbing activity, or the
issuance of any permit necessary to commence a ground-
disturbing activity.

C. The monitor will complete daily monitoring logs that will provide descriptions of the relevant ground-disturbing
activities, the type of construction activities performed, locations of ground- disturbing activities, soil types, cultural-related materials, and any other facts, conditions, materials, or discoveries of significance to the Tribe.

This measure shall be implemented
during construction and followed through
until final disposition of such resources
has been achieved.

City of Chino shall provide documenta-
tion verifying access to the project site by
the Gabrieleño Band of Mission Indians-
Kizh (Keech-Kit’c) Nation (GBMI). A
report of monitoring activities following
completion of ground disturbing activities
shall be provided to City of Chino by the
developer and GBMI documenting all
findings during monitoring activities. A
copy of this documentation shall be
retained in the project file.

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Mitigation Measure Implementation Schedule Verification Monitor logs will identify and describe any discovered
TCRs, including but not limited to, Native American
cultural and historical artifacts, remains, places of
significance, etc., (collectively, tribal cultural resources, or “TCR”), as well as any discovered Native American
(ancestral) human remains and burial goods. Copies of
monitor logs will be provided to the project applicant/lead agency upon written request to the Tribe.

D. On-site tribal monitoring shall conclude upon the latter of the following (1) written confirmation to the Kizh from a designated point of contact for The project applicant/lead agency that all ground-disturbing activities and phases that may involve ground-disturbing activities on the project site or in connection with the project are complete; or (2) a determination and written notification by the Kizh to The project applicant/lead agency that no future, planned
construction activity and/or development/construction
phase at the project site possesses the potential to impact Kizh TCRs.

E. Upon discovery of any TCRs, all construction activities in the immediate vicinity of the discovery shall cease (i.e., not less than the surrounding 50 feet) and shall not
resume until the discovered TCR has been fully assessed by the Kizh monitor and/or Kizh archaeologist. The Kizh will recover and retain all discovered TCRs in the form and/or manner the Tribe deems appropriate, in the
including for educational, cultural and/or historic purposes.

Source Responsible Party Status / Date / Initials
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Mitigation Measure Implementation Schedule Verification XVIII.(a). Tribal Cultural Resources
TCR-2 Unanticipated Discovery of Human Remains and Associated Funerary Objects

A. Native American human remains are defined in PRC
5097.98 (d)(1) as an inhumation or cremation, and in any state of decomposition or skeletal completeness.

Funerary objects, called associated grave goods in
Public Resources Code Section 5097.98, are also to be
treated according to this statute.

B. If Native American human remains and/or grave goods discovered or recognized on the project site, then all
construction activities shall immediately cease. Health and Safety Code Section 7050.5 dictates that any
discoveries of human skeletal material shall be
immediately reported to the County Coroner and all
ground-disturbing activities shall immediately halt and shall remain halted until the coroner has determined the nature of the remains. If the coroner recognizes the
human remains to be those of a Native American or has
reason to believe they are Native American, he or she
shall contact, by telephone within 24 hours, the Native American Heritage Commission, and Public Resources
Code Section 5097.98 shall be followed.

C. Human remains and grave/burial goods shall be treated alike per California Public Resources Code section
5097.98(d)(1) and (2).

D. Construction activities may resume in other parts of the project site at a minimum of 200 feet away from
discovered human remains and/or burial goods, if the
Kizh determines in its sole discretion that resuming
construction activities at that distance is acceptable and provides the project manager express consent of that
determination (along with any other mitigation measures the Kizh monitor and/or archaeologist deems necessary). (CEQA Guidelines Section 15064.5(f).)
E. Preservation in place (i.e., avoidance) is the preferred manner of treatment for discovered human remains
and/or burial goods. Any historic archaeological material that is not Native American in origin (non-TCR) shall be curated at a public, non-profit institution with a research interest in the materials, such as the Natural History
Museum of Los Angeles County or the Fowler Museum, if

This measure shall be implemented
during construction and followed through
until final disposition of such resources
has been achieved.

City of Chino shall provide documenta-
tion verifying access to the project site by
the Gabrieleño Band of Mission Indians-
Kizh (Keech-Kit’c) Nation (GBMI). A
report of monitoring activities following
completion of ground disturbing activities
shall be provided to City of Chino by
GBMI documenting all findings during
monitoring activities. Discovery of
cultural resources shall be reported to
City of Chino within 24 hours of expo-
sure. GBMI shall be notified in
concurrence with City of Chino in the
event any cultural resources are found.

Documentation shall be provided that
ground disturbing activities were
immediately halted in the area of the
discovery and of all management actions
taken following the discovery. A copy of
this documentation shall be retained in
the project file.

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Mitigation Measure Implementation Schedule Verification such an institution agrees to accept the material. If no institution accepts the archaeological material, it shall be offered to a local school or historical society in the area for educational purposes.

F. Any discovery of human remains/burial goods shall be kept confidential to prevent further disturbance.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XVIII.(a). Tribal Cultural Resources
TCR-3 Procedures for Burials and Funerary Remains:

A. As the Most Likely Descendant (MLD), the Koo-nas-gna Burial Policy shall be implemented. To the Tribe, the term “human remains” encompasses more than human bones.

In ancient times, as well as historic times, Tribal Traditions included, but were not limited to, the preparation of the soil for burial, the burial of funerary objects with the deceased, and the ceremonial burning of human remains.

B. If the discovery of human remains includes four or more burials, the discovery location shall be treated as a
cemetery and a separate treatment plan shall be created.

C. The prepared soil and cremation soils are to be treated in the same manner as bone fragments that remain intact.

Associated funerary objects are objects that, as part of the death rite or ceremony of a culture, are reasonably
believed to have been placed with individual human
remains either at the time of death or later; other items made exclusively for burial purposes or to contain human remains can also be considered as associated funerary
objects. Cremations will either be removed in bulk or by means as necessary to ensure complete recovery of all
sacred materials.

D. In the case where discovered human remains cannot be fully documented and recovered on the same day, the
remains will be covered with muslin cloth and a steel plate that can be moved by heavy equipment placed over the
excavation opening to protect the remains. If this type of steel plate is not available, a 24-hour guard should be

This measure shall be implemented
during construction and followed through
until final disposition of such resources
has been achieved.

The City of Chino shall retain all records
of the discovery and management
actions taken in regard to human
remains in the project file and shall share
the records with GBMI.

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Mitigation Measure Implementation Schedule Verification posted outside of working hours. The Tribe will make
every effort to recommend diverting the project and
keeping the remains in situ and protected. If the project cannot be diverted, it may be determined that burials will be removed.

E. In the event preservation in place is not possible despite good faith efforts by the project applicant/developer and/or landowner, before ground-disturbing activities may resume on the project site, the landowner shall arrange a
designated site location within the footprint of the project for the respectful reburial of the human remains and/or ceremonial objects.

F. Each occurrence of human remains and associated
funerary objects will be stored using opaque cloth bags.

All human remains, funerary objects, sacred objects and objects of cultural patrimony will be removed to a secure container on site if possible. These items should be
retained and reburied within six months of recovery. The site of reburial/repatriation shall be on the project site but at a location agreed upon between the Tribe and the City at a site to be protected in perpetuity. There shall be no publicity regarding any cultural materials recovered.

G. The Tribe will work closely with the project’s qualified archaeologist to ensure that the excavation is treated
carefully, ethically and respectfully. If data recovery is approved by the Tribe, documentation shall be prepared
and shall include (at a minimum) detailed descriptive
notes and sketches. All data recovery data recovery-
related forms of documentation shall be approved in
advance by the Tribe. If any data recovery is performed, once complete, a final report shall be submitted to the Tribe and the NAHC. The Tribe does NOT authorize any
scientific study or the utilization of any invasive and/or destructive diagnostics on human remains.

Source Responsible Party Status / Date / Initials
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Mitigation Measure Implementation Schedule Verification XIX.(e). Utilities and Service Systems
UTIL-1 The contract with demolition and construction contractors shall include the requirement that all materials that can feasibly be recycled shall be salvaged and recycled. This includes but not limited to wood, metals, concrete, road base and asphalt. The contractors shall submit a recycling plan to the City for review and approval prior to the construction of demolition/
construction activities.

This measure shall be included in the
construction contract and implemented
during construction.

Verification of implementation shall be
based on field inspections by City of
Chino inspection personnel that verify
adequate traffic management resources
are being used by the contractor as
required in this measure. Field notes
documenting verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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TOM DODSON & ASSOCIATES

DRAFT INITIAL STUDY
(w/ APPENDICES)

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INITIAL STUDY

FOR THE

CITY OF CHINO
WA212 STATE STREET WATER TREATMENT

PROJECT
WELL 14 ON-SITE WELLHEAD
WELL 12 OFF-SITE WELLHEAD

Prepared for:

City of Chino
13220 Central Avenue
Chino, California 91710

Prepared by:

Tom Dodson & Associates
P.O. Box 2307
San Bernardino, CA 92406
(909) 882-3612

JULY 2022

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TABLE OF CONTENTS

Introduction......................................................................................................................................... 1

Environmental Factors Potentially Affected ....................................................................................... 23

Determination ..................................................................................................................................... 24

Mitigation Monitoring and Reporting Program ................................................................................... 25

Evaluation of Environmental Impacts ................................................................................................. 47 I. Aesthetics .......................................................................................................................... 49 II. Agricultural and Forestry Resources ................................................................................. 52 III. Air Quality .......................................................................................................................... 54 IV. Biological Resources ......................................................................................................... 67 V. Cultural Resources ............................................................................................................ 72 VI. Energy ................................................................................................................................ 74 VII. Geology and Soils .............................................................................................................. 76 VIII. Greenhouse Gas Emissions .............................................................................................. 80 IX. Hazards and Hazardous Materials .................................................................................... 83 X. Hydrology and Water Quality ............................................................................................. 88 XI. Land Use and Planning ..................................................................................................... 92 XII. Mineral Resources ............................................................................................................. 93 XIII. Noise .................................................................................................................................. 94 XIV. Population and Housing ..................................................................................................... 107 XV. Public Services .................................................................................................................. 108 XVI. Recreation .......................................................................................................................... 110 XVII. Transportation .................................................................................................................... 111 XVIII. Tribal Cultural Resources .................................................................................................. 114 XIX. Utilities and Service Systems ............................................................................................ 118 XX. Wildfire ............................................................................................................................... 122 XXI. Mandatory Findings of Significance ................................................................................... 123

Summary of Mitigation Measures ...................................................................................................... 125

References ......................................................................................................................................... 132

APPENDICES

Appendix 1 – Preliminary Design Report (PDR)
Appendix 2 – Air Quality / GHG
Appendix 3 – Biological Resources
Appendix 4 – Cultural Resources
Appendix 5 – Soils Maps

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FIGURES (located at end of document)

Figure 1 Regional Map
Figure 2 Site Location Map
Figure 3 Site Location Well 14
Figure 4 Site Location Well 12

Figure II-1 Farmland Map

Figure VII-1 Earthquake Fault Zones
Figure VII-2 Liquefaction & Landslides

Figure IX-1 GeoTracker Hazardous and Clean-up Site Locations Figure IX-2 GeoTracker, page 2
Figure IX-3 GeoTracker, page 3
Figure IX-4 GeoTracker, page 4
Figure IX-5 GeoTracker, page 5
Figure IX-6 GeoTracker, page 6
Figure IX-7 GeoTracker, page 7
Figure IX-8 GeoTracker, page 8
Figure IX-9 GeoTracker, page 9
Figure IX-10 GeoTracker, page 10
Figure IX-11 GeoTracker, page 11
Figure IX-12 GeoTracker, page 12
Figure IX-13 Compatibility Policy Map: Safety Zones
Figure IX-14 Evacuation Routes
Figure IX-15 Fire Hazard Severity Zones

Figure X-1 Flood Hazards Map
Figure X-2 Dam & Basin Hazards

Figure XII-1 Mineral Resource Zones

Figure XIII-1 Existing & Future Noise Contours
Figure XIII-2 Ontario Airport Safety & Planning Areas

EXHIBITS

Exhibit 1 State Street WTF Process Schematic ............................................................... 6 Exhibit 2 GAC Vessel Isometric View............................................................................... 6 Exhibit 3 Drawing of ISEPTM IX System ........................................................................... 7 Exhibit 4 Water Quality Process Monitoring Locations .................................................... 10 Exhibit 5 Process Flow Diagram ...................................................................................... 10 Exhibit 6 Hydraulic Profile of the Proposed System ......................................................... 11 Exhibit 7 Preliminary Site Layout ...................................................................................... 13 Exhibit 8 Offsite Pipelines ................................................................................................. 18

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TABLES

Table 1 Well Capacities .................................................................................................. 3 Table 2 Contaminants of Concern .................................................................................. 4 Table 3 Water Quality Contaminants.............................................................................. 5 Table 4 Treatment Goals ................................................................................................ 5 Table 5 Calgon ISEPTM IX Design Parameters .............................................................. 8 Table 6 Influent Water Quality Basis of Design .............................................................. 12 Table 7 Offsite Pipelines Summary ................................................................................ 17

Table III-1 Ambient Air Quality Standards .......................................................................... 55 Table III-2 Health Effects of Major Criteria Pollutants ......................................................... 57 Table III-3 Project Area Air Quality Monitoring Summary (2015-2017) .............................. 58 Table III-4 Attainment Status of Criteria Pollutants in the South Coast Air Basin .............. 59 Table III-5 South Coast Air Basin Emissions Forecasts ..................................................... 60 Table III-6 Daily Emissions Thresholds .............................................................................. 61 Table III-7 CalEEMod Construction Activity Equipment Fleet and Workdays .................... 63 Table III-8 Construction Activity Emissions......................................................................... 64 Table III-9 LST and Project Emissions ............................................................................... 65

Table VIII-1 Construction Emissions ..................................................................................... 81 Table VIII-2 Operational Power Usage Estimates ................................................................ 82

Table XIII-1 Co. of San Bernardino Noise Standards for Stationary Noise Sources ............ 95 Table XIII-2 Co. of San Bernardino Noise Standards for Adjacent Mobile Noise Sources ............................................................................................. 96 Table XIII-3 City of Chino Exterior Noise Ordinance Criteria for Residential Properties (Zone 1) ..................................................................................... 97 Table XIII-4 City of Ontario Exterior Noise Standards .......................................................... 99 Table XIII-5 City of Montclair Base Ambient Exterior Noise Standards ................................ 100 Table XIII-6 City of Montclair Maximum Residential / Nonresidential Noise Levels ............. 101 Table XIII-7 Noise Levels of Construction Equipment at 25, 50 and 100 Feet From the Source ......................................................................................... 102

Table XIX-1 Landfills in Proximity to the Project Site ............................................................ 121

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LIST OF ABBREVIATIONS AND ACROYNMS

AAQS Ambient Air Quality Standards
AB Assembly Bill
APE Area of Potential Effect
AQMP Air Quality Management Plan
BAT Best Available Technology
Bgs below ground surface
BMPs Best Management Practices
BOR Bureau of Reclamation
BRR Biological Resources Report
CAA Clean Air Act
CAAA Clean Air Act Amendment
CAAQS California Ambient Air Quality Standards
CARB California Air Resources Board
CBC California Building Code
CCAR California Climate Action Registry (now called Climate Action Reserve) CDFW California Department of Fish and Wildlife
CEQA California Environmental Quality Act
CMP Congestion Management Program
CNDDB California Natural Diversity Data Base
CNEL Community Noise Equivalent Level
CNPS California Native Plant Survey
CO carbon monoxide
COC contaminants of concern
COD chemical oxygen demand
CWA Clean Water Act
dB decibel
dBA A-weighted decibel
DBPs disinfection byproducts
DDW Division of Drinking Water
DIF Development Impact Fees
DLR detection limit for purposes of reporting
FGC Fish & Game Code
FRP Fiber Reinforced Polymer
FTA Federal Transit Association
GAC Granular Activated Carbon
GCC Global Climate Change
GHG Greenhouse Gas
HCI hydrochloric acid
HGL hydraulic grade line
HUD Housing and Urban Development
HWL high-water line
IEBL Inland Empire Brine Line
IEUA Inland Empire Utilities Agency

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IX ion exchange
LST Localized Significance Thresholds
LUST Leaking Underground Storage Tank
MBTA Migratory Bird Treaty Act
MLC Mineral Land Classification
MM Mitigation Measure
MPD Montclair Police Department
MRZ Mineral Resources Zone
MTS manual transit switch
MWD Metropolitan Water District of Southern California
NAAQS National Ambient Air Quality Standards
NaCl sodium chloride
NBP Nesting Bird Plan
NHPA National Historic Preservation Act
NPDES National Pollutant Discharge Elimination System
NRCS Natural Resources Conservation Services
NRWS Non-Reclaimable Wastewater System
NWI National Wetlands Inventory
OPD Ontario Police Department
PDR Preliminary Design Report
RTP/SCS Regional Transportation Plan / Sustainable Communities Strategies RWQCB Regional Water Quality Control Board
SARI Santa Ana Regional Interceptor
SCAB South Coast Air Basin
SCADA Supervising Control and Data Acquisition
SCAG Southern California Association of Governments
SCAQMD South Coast Air Quality Management District
SCE Southern California Edison
SIP State Implementation Plan
SOC synthetic organic compound
SWPPP Storm Water Pollution Prevention Plan
TCP trichloropropane
TSS total suspended solids
USDA U.S. Department of Agriculture
USEPA U.S. Environmental Protection Agency
USFWS U.S. Fish and Wildlife Service
USGS U.S. Geological Survey
VdB vibration-velocity decibel
VFD variable frequency drive
VOC volatile organic compounds
WFA Water Facility Authority
WoUS Waters of the United States
WTF Water Treatment Facility
WQMP Water Quality Management Plan

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ENVIRONMENTAL CHECKLIST FORM

INTRODUCTION

1. Project Title: City of Chino State Street Water Treatment Project

2. Lead Agency Name: City of Chino
Address: 13220 Central Avenue, Chino, CA 91710

3. Contact Person: Maria Fraser
Phone Number: 909-334-3310

4. Project Location: The proposed project is located at 10762 Benson on the southwest corner of the intersection of West State Street and South Benson Avenue in Unincorporated San Bernardino County between the Cities of Montclair and Chino. The project will be located at the City’s existing Reservoir 5 and Well 14 site, which encompasses about 4.5 1 acres. Additionally, the project will include pipelines that will traverse the following roadways in the vicinity o f the project site , which have been selected as the preferred alignment:
• Phillips Boulevard between Well 12 and Vernon Ave nue; Vernon Avenue between Phillips Boulevard and State Street; State Street between Vernon Avenue and the State Street Facility
• Benson Avenue at the State Street Facility

The project has also analyzed alternative alignments including the following roadways in the vicinity of the project site:
• Vernon Avenue between Phillips Boulevard and Mission
Boulevard
• Mission Boulevard between Vernon Avenue and Benson
Avenue

The project also involves development at the Well 12 site, which is located at 5251 Phillips Boulevard within the City of Chino just west of the intersection of Central Avenue and Phillips Boulevard.

The project site s are generally located within Section 26, Township 1 South, Range 8 West of the USGS 7.5 Minute Ontario topographical quadrangle. The GPS coordinates of the proposed project are approximately are 34.058705°, -117.681522°. Refer to Figures 1 through 4 for aerial depictions of the regional and site locations.

5. Project Sponsor’s City of Chino Public Works Department Name and Address: 13220 Central Avenue, Chino, CA 91710

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6. General Plan
Designation: State Street Fac ility (Existing Well 14 and Reservoir 5 site), located in the County of San Bernardino : Public Quasi Public .

Well 12 is located in the City of Chino on land designated as Public Facility.

7. Zoning Classification: State Street Facility located in the County of San Bernardino:

IC: Community Industrial. Well 12 is located in the City of Chino on land designated as Public Facility with a zoning classification of P: Public

8. Project Description:

Introduction
The City of Chino encompasses approximately 30 square miles, with a water service area of 29 square miles. The City has an estimated current population of 88,800 (SCAG), with a projected population of 113,333 in 2040 (SCAG). The City water service area serves a population of about 80,800 and primarily follows the City boundary. Groundwater from the Chino Basin is produced by groundwater wells owned and operated by the City, and the wells constitute approximately half of the City’s water supply. Two of the City’s wells—Wells 12 and 14—have been inactive for some time due to being impacted from contamination, as such, th is project proposes to restore their utilization, which will provide a key local water resource to support the City’s growing population and water dem and. The use of treated groundwater is preferred by the City compared with alternative sources, such as Water Facilities Authority (WFA) treated surface water, to reduce reliance on purchased imported surface water. The City therefore proposes the State Street Water Treatment Facility (State Street WTF), a new, centralized treatment project that will treat Wells 12 and 14 for nitrate, perchlorate, and 1,2,3 -trichloropropane (1,2,3-TCP) as these contaminants have been detected at concentrations above the Max imum Contaminant Levels (MCLs) set by the State of California Water Resources Control Board Division of Drinking Water (DDW).

The City of Chino will serve as the Lead Agency under the California Environmental Quality Act (CEQA) for this project. This Initial Study evaluates the potential effects to the environment from implementing the project. The Initial Study Environmental Checklist Form contains 21 environ- mental issues that will be addressed in this Initial Study. Review of the data contained in this Initial Study will assist the City to determine the appropriate environmental determination for the proposed project in order to comply with CEQA, the statute and State CEQA Guidelines . This document has also been prepared in order to meet National Environmental Policy Act (NEPA) standards to enable the Bureau of Reclamation (BOR) to process this project under a separate NEPA documentation process . Appendix 1 to this document contains the Preliminary Design Report (PDR) for the proposed project, the data contained therein informs this Project Description.

Existing Setting
The proposed project is located within a highly industrial corridor along State Street, which is just south of the railroad tracks. The project site is surrounding to the east, south, and west by existing industrial uses, and is located in an unincorporated area of San Bernardino County situated in the Valley region of the County just west of the City of Ontario, south of the City of Montclair and just north of the City of Chino.

The proposed project site contains the existing City Well 14 and Reservoir 5, a 7 million -gallon storage tank. The State Street site includes Well 14, and a WFA supply connection line that

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currently flows into Reservoir 5 (7 MG) on-site. A pipeline connects Well 14 to Reservoir 5, which conveyed groundwater from the well before the well was shut down. Reservoir 5 currently has a Tidal Wave submersible water mixer to help control water age and stratification. Well 12 is located off-site, about a mile southwest of Well 14 on Phillips Blvd., at the same site as Reservoir 4.

A summary of original design well capacities is shown in Table 1.

Table 1

WELL CAPACITIES

Well Number Status Design Capacity (gallons
per minute [gpm]
12 Inactive 2,000
14 Inactive 2,000

Water from Reservoir 5 flows to Reservoir 4, via gravity, and is distributed to the City’s 980 zone.

A pipeline allows for direct distribution to the 980 zone from Reservoir 5; however, the valve is usually closed.

As a governing member agency of the WFA Joint Powers Authority, the City receives water from the Agua de Lejos Treatment Plant that the Authority owns. The WFA supply that comes into the State Street site via a connection point brings imported surface water supplied from State Project Water Sources, and is pressure reduced before entering Reservoir 5. There is an existing meter vault that allows operators to monitor constant flow. The City periodically receives groundwater from the City of Ontario, usually during the winter when the WFA supply is offline. This source water enters the site at the same connection point as the WFA supply and follows the same path into Reservoir 5.

The State Street WTF site is approximately 300 ft x 700 ft (5 -acres), located in San Bernardino County’s Valley Region. The site is classified as a Community Industrial zone and limits structures to a maximum height of 75 feet. Civil design for the State Street site associated with the onsite treatment system includes demolition, paving and grading, and yard piping.

The site is currently secured with ornamental iron fencing, chain link fencing, and CMU block wall surrounding the site. Barbed wire is only present on a portion of the chain link fencing. The main access point is an electronic slide gate with keypad activation off of Benson Avenue.

Project Description
The proposed project consists of development of a State Street Water Treatment Facility (State Street WTF), which will be a new centralized treatment project that will treat water from Wells 12 and 14 for nitrate, perchlorate, and 1,2,3 -TCP. The project also includes installation of offsite water transmission and brine pipelines, improvements to the existing wells, and site improvements. The water treatment facility will have a capacity to treat up to 4,000 gallons per minute (gpm) and the anticipated extraction rate from each well is 2,000 gpm.

As stated above, the proposed project would provide treatment for nitrate, perchlorate, and 1,2,3-TCP at Wells 12 and 14. Treatment is anticipated to include pretreatment through sand separators followed by cartridge filters (solids removal), 1,2,3 -TCP Removal through Granular Activated Carbon (GAC), perchlorate and nitrate removal through a proprietary ion exchange (IX) treatment sys tem, then disinfection and storage in Reservoir 5 before distribution. The IX

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treatment system generates waste water known as brine, that will be disposed of through a new connection to north Non-Reclaimable Wastewater System (NRWS) brine disposal pipeline that is managed locally by the Inland Empire Utilities Agency (IEUA). The GAC system generates a periodic backwash water when the media is replaced that will be disposed of through a local sewer connection.

Existing Water Quality
In a 2018 Water Quality Feasibility Study, the following constituents were identified as primary contaminants of concern (COCs) for treatment of Well 12 water: 1,2,3 -TCP, nitrate, and perchlorate. In a recent Title 22 sampling analysis, the same COCs were identified for Well 14.

Table 2 lists the minimum, maximum, and average concentrations of these constituents observed in the groundwater wells (Wells 12 and 14). 1,2,3 -TCP, nitrate, and perchlorate are observed in both wells above the California MCLs. Recent water quality test results in August 2021 for Wells 12 and 14 showed non -detect (ND) for perfluorinated alkylated substances (PFAS) with a minimum reporting level (MRL) of 1.7 parts per trillion (ppt). The current MRL for Perfluorooctanoic acid (PFOA) and PFOS set by the EPA is 4 ppt. As of now, PFAS is not a contaminant of concern, but the City will continue to monitor this as the EPA finalizes its regulations thereof.

Table 2

CONTAMINANTS OF CONCERN

Parameter Unit CA
MCL
Well 121 Well 142 Well 12 &
14 Blend
Min Avg Max Count Min Avg Max Count Average3
(1,2,3-TCP) ng/L 5 6 15 32 6 8.7 10 12 3 13
Nitrate mg/L
N 10 18 21 22 21 17 17 17 1 19
Perchlorate μg/L 6 4 15.2 21 63 11 12.5 14 2 14
Notes: Grayed out boxes indicate a value above the MCL
1Well 12 sample dates from Aug 1984 – Nov 2017 except for 1,2,3-TCP sampled Jan 2003 - Oct 2020. 2Well 14 sample dates from Nov 2020, except for 1,2,3-TCP and perchlorate sampled Sept 2005 and Nov 2020. 3Determined by averaging the average contaminant value for the two wells. Assuming 50/50 blending at 2,000 gpm for each well.

This value may change once well rehabilitation is complete and more accurate flow productions are known.

Hexavalent Chromium has been detected at both wells below the former California MCL (which was rescinded on May 31, 2017). A new MCL for hexavalent chromium will be established, although it is not certain whether the MCL will be lower, at, or higher than t he original 10 μg/L MCL that was rescinded in 2017.

General water quality parameters are monitored, with some evaluated against National Secondary Drinking Water Standards (non -enforceable guidelines). General and physical parameters are important indica tors for treatment effectiveness and to better inform design considerations. The PDR indicates that neither Well 12 nor 14 presented concentrations above the Secondary MCL.

Other regulated contaminants such as organics, radionuclides, volatile organic compounds (VOCs), and synthetic organic compounds (SOCs) were identified in trace concentrations and are not presently a concern for the City.

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The State Street WTF will be designed based on the parameters listed in Table 3. These values are based on a conservative approach using the maximum concentration of historical water quality for the contaminants with values above the CA MCL.

Table 3

WATER QUALITY CONTAMINANTS

Contaminant Unit Design Value
(1,2,3-TCP) ng/L 32
Nitrate mg/L as N 32
Perchlorate μg/L 21

Treated Water Goals
The treatment goals for the State Street WTF listed in Table 4 have been defined for the following three contaminants based on identification by the City: 1,2,3 -TCP, nitrate, and perchlorate. The City provided these contaminants as the target constituents, in the absence of monitoring well water quality data or hydrogeologic modeling. Treatment for these key contaminants will be designed for 100% of the well flow to achieve effluent concentrations less than 80% of the MCL, or less than the detection limit for purposes of reporting (DLR), as applicable.

Table 4

TREATMENT GOALS

Contaminant Unit CA MCL Design Value
(1,2,3-TCP) ng/L 5 <5
Nitrate mg/L as N 10 <5
Perchlorate μg/L 6.0 2

Onsite Treatment System
The contaminants of concern for the State Street WTF are 1,2,3 - TCP, nitrate, and perchlorate. 1,2,3-TCP is an organic contaminant, and therefore requires a different process system for treatment than nitrate and perchlorate, which are inorganic contaminants. The City currently treats for these contaminants at their other facilities, so a similar approach is proposed to address the COCs at Well 12 and 14. Exhibit 1 below shows the key removal processes selected for the State Street WTF.

The water from Wells 12 and 14 will be conveyed to the centralized treatment location at the State Street site, then processed through the treatment train starting with a pretreatment system to remove any particles present in the water and followed by removal of 1,2,3-TCP. Before the water is treated for nitrate and perchlorate, it passes through another pretreatment system to ensure that no particles will interfere with the downstream processes. Once nitrate and perchlorate are removed, water is disinfected before entering Reservoir 5 through an existing line. The City currently receives chlora minated surface water from a WFA supply that will be breakpoint chlorinated before combining with the treated water in an existing pipe that feeds into Reservoir 5.

Once the State Street WTF is online, the WFA supply coming in will be less than what it currently is, yet still remain a constant source into Reservoir 5.

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Exhibit 1

STATE STREET WTF PROCESS SCHEMATIC

Pretreatment
Pretreatment is typically used before the treatment train to remove suspended particles that may interfere with downstream processes. Pretreatment can minimize the frequency of GAC backwashing and limits the number of trapped particles in IX systems that are not designed to be backwashed. While GAC and IX systems can be operated without it, pretreatment is recom - mended to minimize operational requirements for the GAC and IX systems, such as reducing the need for backwashing by decreasing the rate of suspended solids accumulation on the media.

The proposed pretreatment system consists of sand separators followed by cartridge filters. The design criteria for these treatment systems are discussed further in the PDR provided as Appendix 1.

1,2,3-TCP Treatment
The only Best Available Technology (BAT) currently approved by California Water Boards DDW for 1,2,3-TCP treatment is GAC. GAC is an adsorbent material that removes a variety of natural organic compounds, taste and odor compounds, and synthetic organic compounds. Adsorption removes contaminants from the bulk liquid through the accumulation of contaminants at the interface of the liquid and the media surface. Exhibit 2 below shows a three-dimensional view of a pair of GAC vessels, with connecting piping and valve rack

Exhibit 2

GAC VESSEL ISOMETRIC VIEW

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Water is passed through a pressurized vessel filled with GAC media, where organic compounds, taste and odor, and other constituents, such as volatile organic compounds (VOCs), are adsorbed onto the media surface. When the media is no longer effective at removing 1,2,3 -TCP (i.e., at contaminant breakthrough), changeout is required.

The proposed system includes four treatment trains of GAC. Each train consists of two vessels in a lead-lag (series) configuration, which was selected for its multibarrier protection, which means that the lead vessel will remove the 1,2,3-TCP and the lag vessel is used as a polisher.

Media changeout is typically completed by draining the vessel of the spent media into a portion of a vendor provided truck. This spent media is transported by creating a slurry. The new media is then pneumatically tran sferred from the clean portion of the vendor truck. Media can be pre - washed prior to delivery on site to reduce fines. The backwash waste will be sent to a 50,000 - gallon tank onsite to attenuate the flow and discharged at a rate of approximately 50 gallons per minute into the sewer. The generated backwash waste volume is estimated at approximately 36,000 gallons per backwash per vessel.

The design criteria for this treatment system is discussed further in the PDR provided as Appendix 1.

Nitrate and Perchlorate Treatment
Appropriate nitrate and perchlorate treatment systems that were considered include ion exchange and biological treatment systems. The most desirable treatment system for the proposed project was determined to be a proprietary ion exchange (IX) treatment system.

Proprietary ion exchange systems, such as the Calgon Carbon ISEPTM IX system shown in Exhibit 3, below, use the countercurrent regeneration method and operate in a continuous flow path with recycling a portion of the regenerant material. This type of system typically generates less waste than conventional IX systems but is more mechanically complex.

Exhibit 3

DRAWING OF ISEPTM IX SYSTEM

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Chemicals stored onsite for IX treatment include sodium chloride (NaCl) and hydrochloric acid (HCl). In the ISEPTM system, a regeneration process occurs using a sodium chloride brine solution and softened water. A small amount of softened water is initially used to rinse the vessels and prevent calcium sulfate precipitation before the regeneration process. Sodium chloride is applied as a rock salt and is dissolved in the brine maker to achieve a 26% NaCl solution that combines with the initial softened water rinse effluent for resin regeneration. A final rinse step is completed using softened water to displace any hard water and prevent precipitation of the regeneration zone. The brine and softener waste generated from the system would be disposed of to a brine line.

The Calgon Carbon ISEPTM IX system was determined as the most favorable option for this design based on its lower costs, and lower waste generation in comparison to other systems. The ISEPTM IX system is more complex due to the rotating turntable platform. However, the City has found continued operational su ccess with their current ISEP TM systems at the Eastside and Benson WTFs, and the process minimizes brine waste quantities.

Table 5 outlines the design parameters for the ISEP TM IX system and includes estimated waste quantities based on maximum historical nitrate and perchlorate conditions.

Table 5

CALGON ISEPTM IX DESIGN PARAMETERS

Parameter Units Current
Design Flow gpm 4,000
Resin Volume per Vessel cf 32
Configuration - ISEPTM – Continuous, Countercurrent
Resin - Nitrate Selective
Number of Vessels -
30, with 23 vessels in operation, 6 in
different stages of regen, and one
resting
ISEPTM Salt Usage tons/day 7.9
ISEPTM Brine Waste gpm 12
Softener Salt Usage lbs/day 400
Softener Brine Waste gpd 1,994
Brine Maker Tank Volume gallons 7,300
Number of Brine Waste Tanks - 2

The proposed ISEPTM IX system expected water waste is less than 0.5%. Brine disposal will take advantage of the Inland Empire Brine Line by installing a new pipeline connection into the north Non-Reclaimable Wastewater System (NRWS). The effluent of the ISEP TM system has a media trap, which is used as a protection to capture any resin that may accidently carry over from the vessels before it reaches the reservoir.

Disinfection
Disinfection will be conducted using two dosing points–one for the treated water at the treatment plant and one for the WFA supply coming into Reservoir 5. The WFA supply is currently chloraminated and will need to be breakpoint chlorinated to provide a free chlorine residual before entering the storage tank. The WFA supply will be dosed downstream of the pressure reducing valve and the flow meter vault can be used to control the chlorine added. Elevated concentrations

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of disinfection byproducts (DBPs) may form during breakpoint chlorination, so testing of both water sources for DBPs will occur. In addition, a monitoring point would be added at the reservoir effluent before water is sent out to distribution. An in-line static mixer will be added at each dosing point to ensure proper mixing.

The City prefers liquified chlorine gas, which is currently used at their other facilities, due to operator familiarity and similarities across facilities. Liquified chlorine gas would be delivered in 150-lb gas cylinders. There will be two separate dosing systems, one for the wells treated water and one for the WFA line. Each chlorine dosing system will be in a separate building and will include a chlorinator, automatic cylinder changeover valves, leak detection and safety equipment, and a process water booster pump. The process water booster pump will be used to supply pressure to operate the venturi eductor and ensure a constant rate of pumping before chlorine is dosed into the system. Additional cylinder storage will be provided adjacent to each chlorine dosing building to allow up to 2,500 pounds, or 9 cylinders, in total to be stored on -site and swapped out by operators when needed.

As part of the Groundwater Rule, compliance monitoring is necessary and will be perfor med for all water systems that use groundwater and are disinfected prior to distribution.

At a maximum flow of 6,000 -gpm (4,000 -gpm design flow and 2,000 -gpm WFA supply), 117 minutes of contact time (CT) would be provided in order to achieve a virus ina ctivation. At a maximum flow of 6,500-gpm (4,000-gpm design flow and 2,500-gpm WFA supply), 108 minutes of contact time (CT) would be provided in order to achieve a virus inactivation.

Water Quality Process Monitoring
To verify process performance, manual samples and online analyzers will be used at the State Street WTF to monitor influent and effluent contaminant levels following each process treatment and free chlorine residual following chlorine dosing. Samples will be taken at each wellhead and at the centralized treatment train after the sources are blended before entering pretreatment to measure influent contaminant levels. Monitoring of the GAC performance is by manual sample collection through the vessel ports. These monitoring points would allow th e operators to track contaminant breakthrough through the bed to better anticipate the need for carbon changeout.

Once contaminant breakthrough is reached in the lead GAC bed, the lag vessel becomes the lead allowing for full utilization of the media. The exhausted media in the lead vessel would then be promptly changed out to ensure that the water flow out of the new lead vessel is polished.

Manual samples will be routinely monitored in the lab.

The ISEPTM system will have an online analyzer to monitor influent and effluent nitrate levels. It is expected that contaminant breakthrough will be controlled by nitrate concentration as nitrate levels below the MCL signify perchlorate levels below the MCL. Manual samples will be taken at the ISEPTM effluent to ensure complete perchlorate removal, and monitoring conductivity on the regeneration system to assure there is no residual brine in the vessel at the end of the rinse cycle would occur.

Chlorine dosing control will be measured using a single dose point and single measuring point for the treated water, and a single dose point for the WFA supply before it enters Reservoir 5. A final chlorine measuring point before distribution would ensure that the blended water has met the chlorine residual.

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Exhibit 4

WATER QUALITY PROCESS MONITORING LOCATIONS

Process Flow Diagram
The proposed treatment process includes sand separators at each wellhead, cartridge filters as pretreatment to reduce solids loading on the GAC, eight GAC vessels configured in a lead -lag setup for removal of 1,2,3 -TCP, a second set of cartridge filters as pretreatment to IX, and Ion Exchange for removal of nitrates and perchlorate. The water is dosed with chlorine before entering the treated water storage reservoir with enough detention ti me to attain 4 -log virus inactivation.

The WFA supply that enters the reservoir will be dosed with chlorine for breakpoint chlorination to achieve a free chlorine residual that matches that of the treated water, as mentioned in the previous section. Once the State Street WTF is online, with constant flows coming from Wells 12 and 14, the WFA supply flow will be decreased to meet distribution system demand. Exhibit 5 is a process flow diagram of the proposed treatment process for the State Street WTF.

Exhibit 5

PROCESS FLOW DIAGRAM

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Hydraulic Profile
The hydraulic profile of the proposed system from the Wells 12 and 14 raw water confluence point to Reservoir 5 is shown in Exhibit 6. Hydraulic profile indicates the hydraulic grade line (HGL) 1, as water passes through the various treatment systems. The hydraulic profile is based on the process flow diagram, design flow rates, and losses through each process equipment. A hydraulic barometric pipe loop will be added to the design on the effluent of the IX to prevent the GAC and IX from draining should the treated water storage reservoir fall below the HWL (high water line).

Exhibit 6

HYDRAULIC PROFILE OF THE PROPOSED SYSTEM

Waste Handling
The State Street WTF has access to two sewer laterals – the City of Ontario 12” sewer along Benson Ave., and the City of Montclair 8” sewer along Mission Blvd. The project will connect to one of these two sewer laterals, depending on which is the most feasible and desirable upon design finalization. The brine waste produced from the ISEP TM system will be disposed of in a brine line owned and operated by Inland Empire Utilities Agency (IEUA). The waste flows from the ISEPTM system will be approximately 17,000 gpd, including both brine and softener wast e.

Table 6 lists the approximate waste streams of the proposed treatment facility.

1 HGL is measure of flow energy, is a line coinciding with the level of flowing water at any point along an open channel. In closed conduits flowing under pressure, the hydraulic grade line is the level to which water would rise in a vertical tube (open to atmospheric pressure) at any point along the pipe. The hydraulic grade line is used to aid the designer in determining the acceptability of a proposed or evaluation of an existing system by establishing the elevation to which water will rise when the system is operating under design conditions. https://www.oregon.gov/odot/GeoEnvironmental/Docs_Hydraulics_Manual/Hydraulics-13-G.pdf

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Table 6

INFLUENT WATER QUALITY BASIS OF DESIGN

Parameter Units Total Frequency Disposal Location
GAC Backwash Waste Volume Gallons per
vessel 36,000 As required/at GAC
changeout Sewer
ISEPTM Brine Waste gpd 15,000 Daily Brine Line
ISEPTM Softener Waste gpd 2,000 Daily Brine Line

To minimize instantaneous flow into the sewer line, the backwash waste will be attenuated in a new 50,000-gallon tank prior to discharge. Similarly, a new 8,500-gallon brine waste storage tank and new 2,500-gallon softener waste storage tank will be used to store and attenuate flow and to maintain a constant discharge flow to the pipeline. Brine and sof tener waste should be stored separately prior to discharge to manage risks of precipitation. The pipeline will be in a duty/duty configuration allowing for the brine and softener waste to be disposed of in separate lines in a plug flow configuration, to prevent mixing in the line and potential precipitation.

Preliminary Site Layout
The site layout was developed to best minimize pipe and electrical conduit lengths and provide a practical layout for daily operations. The proposed layout (Exhibit 7) shows a truck path to circle the site from the existing access road, between the GAC and IX building, to another providing adequate access for fire trucks and maintenance trucks, such as those required to deliver salt, chemicals, or GAC media.

Water from Well 14 will blend with water from Well 12 before entering the treatment train. To deliver Well 12 water to the facility, an underground pipeline from Well 12 to the treatment facility will be constructed. The treated water will tie into an existing line that flows into Reservoir 5. The brine and chemical tanks for the ISEP TM process will be located under a canopy, on the side of the IX building facing the road for delivery ease. The chlorine storage building will be located adjacent to the chlorine dosing building, also close to the road, to reduce the risk of chlorine gas exposure when delivering the cylinders and transporting to the dosing building. The preliminary site layout drawing is provided as Exhibit 7.

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Exhibit 7

PRELIMINARY SITE LAYOUT

Electrical, Instrumentation, and Control
The State Street WTF work will be done in accordance with the applicable codes and standards listed in the PDR provided as Appendix 1.

Well 14
The existing electrical service at Well 14 is by Southern California Edison (SCE) and the primary service is routed underground from a utility pole near the site e ntrance to a pad mounted utility transformer, which steps the voltage down to 480/277VAC, 3 -phase. The existing pad-mounted utility transformer is located on the south end of the site, east of existing Well 14. Further details on the electrical services pr ovided within the Well 14 site are provided in PDR provided as Appendix 1.

Well 12
The existing electrical service at Well 12 is by SCE and the primary service is routed underground from a utility pole near the site entrance to a pad mounted utility trans former, which steps the voltage down to 480/277VAC, 3 -phase. The existing pad -mounted utility transformer is located south of the well pump and the electrical distribution equipment. Further details on the electrical services provided within the Well 12 site are provided in PDR provided as Appendix 1.

Proposed Power Distribution Improvements: WTF and Well 14 In order to meet the new pumping rate after the completion of well rehabilitation, the new well pump will need to be upgraded. A new electrical distri bution system shall be installed to support the larger well pump motor, and other new loads from the treatment plant. The new well pump is preliminarily designed to be 460 VAC at 600 horsepower (HP), driven by Variable Frequency

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Drive (VFD) to meet the desired pump operating range. The new well pump motor shall be inverter duty rated.

Further details on the electrical load summery are provided in PDR provided as Appendix 1.

However, they are summarized as follows:
• New Well 14 Pump: 600 HP
• GAC BC Pump: 40 HP
• Brine Disposal Pump: 5 HP
• Softener Disposal Pump: 3 HP
• HVAC System – Fan: 5 HP
• Air Compressor: 10 HP
• HVAC System – Air Conditioning: 30 kVA
• ISEPTM System: 80 kVA
• Chlorine Gas System – Dosing Pt 1: 30 kVA
• Chlorine Gas System – Dosing Pt 2: 30 kVA
• GAC System Panel: 20 kVA
• Misc. 480V Loads: 30 kVA
• Lighting Panel Transformer: 30 kVA
o Note: 1 HP is assumed to be 1 kVA. Actual kVA value will depend on motor load factor, efficiency, and power factor
• The connected load will total 1,291 FLA (full-load amperes, meaning the actual known capacity of a motor)
• The operating load will total 913 kVA (1,000-volt amps = 1 kVA) • The operating load will total 1,111 FLA

Since the existing well pump is to be removed and replaced, the existing power distribution system at the facility shall be demolished and upgraded to accommodate the added demand. The new distribution system shall be installed inside a dedicated air-conditioned Electrical Room inside the IX Building. The new system shall include a 2000A, 480V, 3-phase, 3-wire service entrance main switchboard, feeding the standalone VFD cabinet for the new well pump motor, and a 480V MCC lineup that includes motor starters and circuit breakers to supply power to the new treatment plant loads. As required, a new 480V 3 -phase, 3 -wire panelboard shall be provided to feed motor operated valves and other small 480V loads, and a 30kVA 480 -120/208V transformer and panelboard shall be provided to distribute 120/208V power to exterior/interior lighting fixtures and receptacles, instruments, CCTV cameras, and other miscellaneous loads.

The main switchboard shall also include an open transition manual transfer switch (MTS) to allow for a portable generator to be connected to provide backup power in an event of power outage.

A new 1000kVA (preliminary) pad -mounted utility transformer shall be provided by Southern California Edison (SCE) to supply sufficient power to the new distribution system. Transformer size shall be coordinated and finalized with SCE during final design.

Proposed Power Distribution Improvements: Well 12
Similar to the Well 14 pump, the well pump at the existing Well 12 facility shall also be replaced and upsized. The new well pump is preliminarily designed to be 460VAC at 600HP, driven by Variable Frequency Drive (VFD) to meet the desired pump operating range. The new well pump motor shall be inverter duty rated.

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The existing power distribution system shall be demolished and upgraded to accommodate the larger well pump motor. The new system shall include a 1200A, 480V, 3 -phase, 3-wire service entrance main switchboard, feeding the standalone VFD cabinet for the new well pump moto r, and feeder circuit breakers to supply power to other auxiliary loads. All electrical enclosures shall be NEMA 3R rated for outdoor installation. As required, a new 480V 3-phase, 3-wire panelboard shall be provided to feed motor operated valves and other small 480V loads, and a 30kVA 480-120/208V transformer and panelboard shall be provided to distribute 120/208V power to lighting, receptacles, instruments, and other miscellaneous loads.

The main switchboard shall also include an open transition manual transfer switch (MTS) to allow for a portable generator to be connected to provide backup power in an event of power outage.

Lighting
General lighting will be provided for illumination throughout the facility interior and exterior.

Additional lights will be installed at strategically located areas around the site to provide sufficient lighting for security and safety. All fixtures will be specified as LED technology for extended life and energy efficiency. Exterior light fixtures will be equipped with photo cells for dusk to dawn operation.

Proposed Instrumentation and Control System Improvements

Well 14 and WTF Improvements
The existing Well 14 Programmable Logic Controller (PLC) panel and associated instrumentation will be replaced as part of the Well 14 equipping and water treatment facility addition project.

The ISEPTM will be provided with a PLC. In order to match the configuration of the City of Chino Eastside Expansion Project, a dedicated Plant PLC will be provided for the GAC treatment process and an additional Main Plant PLC will be provided for monitoring and control of the remaining treatment processes. As all three new PLC enclosures are anticipated to be located within the new Ion Exchange building, CAT 6 cable is recommended in order to commu nicate between the new PLC’s. In addition, a digital video security system will be provided. The quantity, location, and manufacturer of the video security system, including location of the cameras, will be coordinated with the City during detailed design.

Well 12
The existing PLC panel and associated instrumentation will be replaced as part of the Well 12 equipping project. A new PLC cabinet will be required in order to integrate Well 12 with the new Water Treatment Plant. During detailed design, Hazen wi ll coordinate with the City in order to understand the City’s preferred means of communication from Well 12 to the City’s Supervisory Control and Data Acquisition (SCADA) system and the new water treatment plant.

Architecture and Finishings

Ion Exchange Building
The Ion Exchange Facility will be a single-story building, consisting of the ISEPTM system and the control room, and a canopy. The building will be built to house necessary process equipment for the ISEPTM system and will have a clear line of sight from the electrical room to the system. The building will be a pre-fabricated metal building with similar style, form, materials, and finishes to other City facilities, such as at Eastside and Benson WTFs. The building will also house an electrical room, break room, and restroom. A prefabricated metal canopy to cover process tanks

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on the southern edge of the building will be provided. Painted hollow metal doors and clear exit paths will be provided for each building and area in accordance with the building code. Windows will be designed to allow natural light to enter. The building will have a roll up door to allow for access to remove equipment for maintenance. Finishes will be limited to paint for metals without a factory applied finish. Floors will be sealed except for the break, toilet, and electrical room that may include vinyl tile or similar floor finish. Those rooms will receive an acoustical lay in ceiling system.

The Ion Exchange building will contain forced ventilation with air louvers on the s ide of the building. All other rooms within the building will be insulated and air conditioned. The thermal envelopes of the building will be designed to comply with the Energy Conservation Code and related regulations. Chemicals will be evaluated for hazards and rooms containing chemicals will be classified in accordance with the Hazard present and the quantity of chemicals.

Coatings
Structural members and other steel items will be painted with a VOC compliant epoxy coating.

Where steel members are exposed to the exterior, an additional coat of a VOC polyurethane or siloxane coating will be applied to minimize chalking and discoloration. Floors will receive a clear sealer or containment liner where chemicals will deteriorate the concrete. The exterior wall s will have a factory finished insulated wall panel and not require field painting. A vinyl liner membrane will be exposed within the building roofing system with insulation and metal standing seam roofing above or a factory insulated roofing system provided as determined during final design.

Structural Systems

GAC Treatment
The GAC treatment area will be supported on a reinforced cast -in-place concrete mat slab foundation. The approximate footprint of the new mat slab for the GAC treatment area measures 23 feet x 167 feet. The GAC backwash tank will be a metal tank on a reinforced cast -in-place concrete ring foundation or a reinforced cast-in-place concrete mat slab foundation if required.

ISEPTM Treatment
The ISEP TM treatment will be housed in a rectangular building superstructure consistent with normal pre-engineered metal building-type construction, which includes built -up structural steel column and beam framing with metal panel roof system, secondary roof and wall framing, and metal wall panel siding. The slab will have a trench drain around the ISEP TM equipment slab to capture potential flow and carry it out of the building. A canopy structure will be built over the waste tanks that will be located on the West side of the building. The canopy construction will also be consistent with normal pre- engineered metal building-type construction. The new building and canopy superstructures will be supported on a conventionally reinforced concrete mat foundation or slab-on-grade with isolated spread footings at each column location of the steel framed system, in conformance with the Geotechnical Engineer’s recommendations. The approximate footprint of the building and canopy measures 70 feet x 70 feet and 70 feet x 25 feet, respectively. The building height will be approximately 25 feet at the peak of the gable roof.

To prevent any possibility of flooding, the rooms will have floors raised six inches off the floor of the process area with a step. The trench drain around the IX equipment will also sep arate the new rooms from the process area to prevent flooding.

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Chlorine Dosing Buildings
The chlorine dosing buildings and chemical storage buildings will be prefabricated Fiber Reinforced Polymer (FRP) buildings. The two buildings on the north wall of th e ISEPTM building will be supported by a slab-on-grade tied into the ISEPTM building’s foundation. The two isolated buildings will be supported by a conventionally reinforced concrete mat foundation.

Well Enclosures
Well 12 and Well 14 enclosures will be modified. Well 12 has existing canopies and privacy fencing and Well 14 has an existing CMU building adjacent to a canopy and privacy fencing. More secure enclosures for the two wells will be provided.

Other
Any new yard equipment will be supported by a conventionally reinforced concrete slab-on-grade foundation where necessary.

Offsite Facilities

Offsite Pipelines
The off-site pipelines include the raw water pipeline from Well 12; the parallel brine waste and softener waste lines to the IEUA waste line; and the sewer line. A summary of the off-site pipelines is included in Table 7 and shown graphically in Exhibit 8.

Table 7

OFFSITE PIPELINES SUMMARY

Pipe Description Nominal
Diameter (in) Pipe Type From To
Well 12 16 DIP Well 12 State Street Facility
Brine Waste/Softener Waste Dual 4” PVC State Street
Facility
IEUA Brine Line (Vernon Ave
and Phillips Blvd)
Sewer 6 PVD State Street
Facility
City of Montclair Sewer
(Benson Ave and Mission Blvd)

There is an existing 8” drain line from Reservoir 5 that runs along the westerly edge of the State Street Facility site, crosses State Street, and discharges into the open channel that parallels State Street and the railroad tracks. The portion crossing State Street and connecting to the channel will be protected in place, and the portion onsite will be replaced and used as the pump-to-waste discharge line.

At this time, there are the alignment for the Well 12 raw water line and the dual 4” lines for the brine waste and softener waste would use State Street to Vernon Avenue . An analysis of an alternative alignment using Benson Avenue and Mission Boulevard to Vernon Avenue has been analyzed herein, but it is not the preferred alignment.

There are several jurisdictions that may be impacted by the pipeline installations – City of Montclair, City of Chino and County of San Bernardino. The City of Ontario is located adjacent to the project site, but the entirety of the preferred pipeline alignment would avoid the City’s jurisdiction. The approximate jurisdictional boundaries are shown on Exhibit 8.

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Exhibit 8

OFFSITE PIPELINES

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Brine Line
A new brine line is required from the State Street Facility treatment system to the existing IEUA 33” waste line in Phillips Boulevard that flows from east to west. The brine line is owned and maintained by IEUA. The line is being designed as a dual 4” force main to be installed in a common trench. It will flow by pressure from the State Street Facility to the connection point. The dual force mains will carry brine waste and softener waste separately, one in each pipe, until they are combined into one flow at the final discharge point to IEUA.

Approval and permitting is required through IEUA – both their Water Quality group and Engineering group. A condition of the permit is to purchase discharge rights based on a function of flow, chemical oxygen demand (COD), and total suspended solids (TSS) estimates of the discharge.

Discharge rights are obtained by purchasing capacity units to the NRWS north sy stem. The NRWS capacity units (NRWSCU) were calculated using a formula provided by IEUA. Since COD and TSS data was unavailable for Wells 12 and 14, an assumed concentration of 20 mg/L and 2 mg/L was assumed. Using these assumed values and the ISEP TM waste flow of 17,000 gpm, the expected NRWSCU is 43 capacity units.

Based on previous experience with IEUA, they will require a flow meter and sampling point, either in a vault near the discharge point, or onsite at the State Street Facility. The Engineering g roup will most likely require a new manhole at the connection point. There is currently not a manhole at the intersection of Vernon Avenue and Phillips Boulevard. We will continue to coordinate the requirements with IEUA and incorporate those requirements into the design documents.

Well 12 and Well 14 Equipping Design
Well Design Flow Rate : Well rehabilitation (rehab) for both wells is currently in process. At the conclusion of well rehab, the recommended pumping rates for each will be confirmed by the project hydrogeologist – Richard C. Slade and Associates. At this time, a pumping rate of 2,000 gpm is assumed for each well with an assumed pump speed of 1,770 rpms, and as previously stated a motor power of 600 HP. The recommended long -term pumping capacity will be determined after the well rehab is complete.

Service Criteria and Hydraulic Conditions: Each well must be designed to deliver a full range of potential pumping rates in order to pump through the proposed piping and treatment system, and fill Reservoir 5 to the high-water level of 985 ft.

All design criteria will follow industry standards and guidelines, Engineer recommendations, and City design guidelines and preferences. The system key characteristics will be confirmed after well rehabilitation by the hydrogeologist—Richard C. Slade and Associates. Please refer to the PDR provided as Appendix 1 for a description of the anticipated well system characteristics, including system curves and pump curves.

Summary of Project Scope
The general scope is listed as follows:
• Sand Separators as pretreatment at each wellhead
• Cartridge Filters as pretreatment
• GAC – 8 vessels, slab-on-grade
• Calgon Carbon ISEPTM IX system – 30 vessels, slab on grade • Brine waste storage tank (8,500 gallon) slab-on-grade

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• 2,500-gallon softener waste storage tank
• Backwash waste tank (50,000 gallon)
• Site Civil and Yard Piping
• Site prep/grading
o Excavation and installation of yard pipes
o Removal and replacement of pavement for piping excavation o Site finishing (landscaping, misc. curb/cutter, etc.) o Retention and drainage facilities
• Electrical and Instrumentation
• Pipeline from Well 12 to the State Street Wellhead Treatment Plant – preferred alignment 8,250 lineal feet (LF) of 16-inch diameter pipeline; alternative alignment 8,830 LF 16-inch diameter pipeline
• Brine line to Phillips Blvd from the State Street Wellhead Treatment Plant – preferred alignment 5,850 LF 4 -inch diameter pipeline ; alternative alignment 6,430 LF 4 -inch diameter pipeline
• Softener waste brine pipeline to Phillips Blvd from the State Street Wellhead Treatment Plant – preferred alignment 5,850 LF 4-inch diameter pipeline; alternative alignment 6,430 LF 4-inch diameter pipeline
• Sewer waste pipeline from the State Street Wellhead Treatment Plant to Mission Boulevard and Belson Avenue – 790 LF 6-inch diameter pipeline

Construction Scenario
Please refer to Appendix 1 for specifics regarding foundation and design.

It is estimated that the construction for this project would take approximately 1 and a half years from the commencement of the bidding process to Operational Completion. The desig n for this project is scheduled to finish in early-mid 2022, following bidding it is expected that construction could be completed in the fourth quarter of 2023.

State Street Wellhead Treatment Plant Site Construction Construction at the State Street Well head Treatment Plant site will involve site demolition; site paving; site prep/grading; excavation and installation of additional yard pipes; removal and replacement of pavement; installation of the GAC treatment area on a 13’ x 167’ new mat slab foundation; installation of the IESPTM Treatment structure in a 70’ x 70’ building with a 70’ x 25’ canopy; install new enclosure and upgrades at Well 14; chlorine dosing building installation; installation of new well enclosure, site finishing (landscaping, misc. curb/cutter, etc.); site drainage (above and below grade); and, relocating/replacing the existing yard hydrant and piping.

It is anticipated that the maximum number of construction personnel on the State Street Wellhead Treatment Plant on any given day will be 20 persons. The maximum number of truck deliveries, which would likely occur during pouring of concrete for facilities, is forecasted at 10 per day.

Demolition at the project site will result in about 100 to 200 CYs of material; the project will recycle 50% or about 50 to 100 CYs. The effort to recycle or dispose of demolished material is anticipated to require about 10 trips to accomplish with no more than 5 round trips occurring within a given work day.

Pipeline Construction
Construction of the various pipelines would involve trenching using a conventional cut and cover technique, and jacking and boring where necessary. The trenching technique would include saw

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cutting of the pavement where applicable, trench excavation, pipe installation, backfill operations, and constructing new pavement . The trench would be approximately 5 -6 feet deep and 3 feet wide. The pipeline would be installed a minimum of 3 feet below ground surface (bgs).

Construction staging areas would be identified by the contractor for pipe lay-down, soil stockpiling, and equipment storage. On average, 100 to 200 linear feet of pipeline may be installed per day.

It is assumed that the pipeline installation will require about 10 employees per day. It is assumed that 10 Dump/delivery trucks (80 miles round trip distance) would be required for this effort.

Trenches would be temporarily closed at the end of each workday, by covering with steel trench plates and installing barricades to restrict access to staging areas. The con struction equipment needed for pipeline installation would include: backhoe, excavator, bracing, welding equipment, boom lift truck, steamroller, plate compactor. Minimal off-site disposal would include construction related debris and spoils. The final activity associated with the pipeline installation is repaving of roads disturbed by the construction.

Well 12 Construction
As previously stated, the Well 12 enclosures will be modified. Well 12 has existing canopies and privacy fencing and Well 14 has an existing CMU building adjacent to a canopy and privacy fencing. It is anticipated that the maximum number of construction personnel on the Well 12 site on any given day will be 10 persons. The maximum number of truck deliveries, which would likely occur during pouring of concrete for facilities, is forecasted at 10 per day.

Maintaining Existing Plant Operations
Maintaining e xisting plant operations during construction and commissioning is important to maintaining a potable water supply to the distribution system. The construction of the new treatment processes will be on a new space with few existing facilities.

The WFA supply provides a constant source of water to the residents of the City of Chino, so it is essential that both the line and reservoir remain in operation during construction of the new facility.

Access will be maintained during construction to allow for mainte nance of the WFA supply and Reservoir 5, if needed.

During construction of the underground pipeline connection points between the treated water chlorine dosing building and the reservoir influent point, access to the west side of the site will be disrupted.

The project specifications will include specific details for the general contractor outlining maintaining existing plant operations requirements. The primary impacts to maintaining existing plant operations are the interface connection points:
• Treated Water Pipeline Connection to Reservoir
• WFA Pipeline Connection to Reservoir

Any required temporary facilities will be written into contractor documents.

9. Surrounding land uses and setting: (Briefly describe the project’s surroundings)

The project site is in a highly industrial area, and is surrounded entirely by developed sites within the County of San Bernardino, City of Montclair, City of Ontario, or City of Chino.

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State Street Wellhead Treatment Plant Site Construction • North: Industrial (City of Montclair)
• East: Industrial (City of Ontario)
• South: LI: Limited Industrial (County)
• West: LI: Limited Industrial (County) / Industrial (City of Montclair)

The project site currently contains the City of Chino Reservoir 5 and Well 14.

Pipeline Alignments
The land uses surrounding the proposed pipeline alignments are as follows:
• City of Montclair: Industrial, Single Family Residential, Commercial, Medium Density Residential
• County of San Bernardino: MDR: Medium Density Res. 5 -20 du/ac, C: Commercial, LI: Limited Industrial
• City of Ontario: Single Family and Industrial
• City of Chino: RD1: Rural Residential Density 1du/ac, General Commercial and Public Facility

Well 12 is located in the City of Chino on land designated as Public Facility. Surrounding land uses include County of San Bernardino Single Family Residential, City of Montclair Single Family Residential, and City of Chino Commercial use.

10. Other agencies whose approval is required (e.g., permits, financing approval, or partici - pation agreement.)

Governing Organization Permit
Federal
Federal Aviation Administration
Due to the height of some construction equipment, such as cranes, and the proximity of the project to the airport, there may be a need to provide a Notice of Proposed Construction or Alteration to the FAA.

State
State Water Resources Control
Board
NPDES General Construction Permit
NPDES Stormwater Permit (existing)
Operating Permit Amendments – DDW (Amendment)
California Regional Water Quality Control Board, Colorado River Basin Region Cal OSHA Trenching and Excavation Permit
CalARP Chlorine Storage Permit
Regional
City of Chino Water Quality Management Plan, building permits required for Well 12, public ROW permits for pipeline construction
City of Montclair Sewer Discharge Permit
Chino Valley Fire District
Chino Valley Fire District Plan Review Application
Chino Valley Fire District Permit
Santa Ana Watershed Project
Authority Brine Discharge Permit

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Governing Organization Permit
Inland Empire Utilities Agency Direct Discharge Permit, engineering review San Bernardino County
Planning Permit: Administrative Approval or Site Approval or Special Conditional Use Permit,
Building Permit, public ROW permits for pipeline construction Grading Permit, MEP Permits, post construction stormwater quality compliance

11. Have California Native American tribes traditionally and cultural affiliated with the project area requested consultation pursuant to Public Resources Code section 21080.3.1? If so, has consultation begun?

The City has been contacted by five Tribes under Assembly Bill (AB) 52: the Gabrieleño Band of Mission Indians – Kizh Nation, Torres Martinez Desert Cahuilla Indians, Morongo Band of Mission Indians, San Gabriel Band of Mission Indians , and the Soboba Band of Luiseño Indians. The tribes were contacted to initiate the AB-52 process in December of 2021 to notify the tribes of the proposed project through mailed letters. During the 30 -day consultation period, the Gabrieleño Band of Mission Indians – Kizh Nation (Gabrieleño Band) was the only tr ibe to re quest consultation. The Gabrieleño Band requested that mitigation be incorporated to ensure protection of potential tribal cultural resources within the project site. This mitigation is discussed further under Subsection XVIII, Tribal Cultural Resources, below.

Note: Conducting consultation early in the CEQA process allows tribal governments, lead agencies, and project proponents to discuss the level of environmental review, identify and address potential adverse impacts to tribal cultural reso urces, and reduce the potential for delay and conflict in the environmental review process. (See Public Resources Code section 21083.3.2.) Information may also be available from the California Native American Heritage Commission’s Sacred Lands File per Public Resources Code section 5097.96 and the California Historical Resources Information System administered by the California Office of Historic Preservation. Please also note that Public Resources Code section 21082.3(c) contains provisions specific to confidentiality.

ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED

The environmental factors checked below would be potentially affected by this project, involving at least one impact that is a "Potentially Significant Impact" as indicated by the checklist on the following pages.

Aesthetics Agriculture and Forestry Resources Air Quality Biological Resources Cultural Resources Energy
Geology / Soils Greenhouse Gas Emissions Hazards & Hazardous Materials Hydrology & Water Quality Land Use / Planning Mineral Resources Noise Population / Housing Public Services
Recreation Transportation Tribal Cultural Resources
Utilities / Service Systems Wildfire Mandatory Findings of Significance

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DETERMINATION (To be completed by the Lead Agency)

On the basis of this initial evaluation, the following finding is made:

The proposed project COULD NOT have a significant effect on the environment, and a NEGATIVE DECLARATION will be prepared.

Although the proposed project could have a significant effect on the environment, there will not be a significant effect in this case because revisions in the project have been made by or agreed to by the project proponent. A MITIGATED NEGATIVE DECLARATION will be prepared.

The proposed project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required.

The proposed project MAY have a "potentially significant impact" or "potentially significant unless mitigated" impact on the environment, but at least one effect 1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and 2) has been addressed by mitigation measures based on the earlier analysis as described on attached sheets. An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain to be addressed.

Although the proposed project could have a significant effect on the environment, because all potentially significant effects (a) have been analyzed adequately in an earlier EIR or NEGATIVE DECLARATION pursuant to applicable standards, and (b) have been avoided or mitigated pursuant to that earlier EIR or NEGATIVE DECLARATION, including revisions or mitigation measures that are imposed upon the proposed project, nothing further is required.

Tom Dodson & Associates June 29, 2022
Prepared by Date

Lead Agency (signature) Date

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MITIGATION MONITORING AND REPORTING PROGRAM (MMRP)

MMRP REQUIREMENTS

Public Resources Code (PRC) Section 21081.6 (enacted by the passage of Assembly Bill [AB] 3180) mandates that the following requirements shall apply to all reporting or mitigation monitoring programs:
• The public agency shall adopt a reporting or monitoring program for the changes made to the project or conditions of project approval in order to mitigate or avoid significant effects on the environment. The reporting or monitoring program shall be designed to ensure compliance during project implementation. For those changes which have been required or incorporated into the project at the request of a Responsible Agency or a public agency having jurisdiction by law over natural resources affected by the project, that agency shall, if so requested by the Lead Agency or a Responsible Agency, prepare and submit a proposed reporting or monitoring program. • The Lead Agency shall specify the location and custodian of the documents or other material, which constitute the record of p roceedings upon which its decision is based. A public agency shall provide the measures to mitigate or avoid significant effects on the environment that are fully enforceable through permit conditions, agreements, or other measures. Conditions of project approval may be set forth in referenced documents which address required mitigatio n measures or in the case of the adoption of a plan, policy, regulation, or other project, by incorporating the mitigation measures into the plan, policy, regulation, or project design.

Prior to the close of the public review period for a draft Environmental Impact Report (EIR) or Mitigated Negative Declaration (MND), a Responsible Agency, or a public agency having jurisdiction over natural resources affected by the project, shall either submit to the Lea d Agency complete and detailed performance objectives for mitigation measures which would address the significant effects on the environment identified by the Responsible Agency or agency having jurisdiction over natural resources affected by the project, or refer the Lead Agency to appropriate, readily available guidelines or reference documents. Any mitigation measures submitted to a Lead Agency by a Responsible Agency or an agency having jurisdiction over natural resources affected by the project shall be limited to measures that mitigate impact s to resources, which are subject to the statutory authority of, and definitions applicable to, that agency. Compliance or noncompliance by a Responsible Agency or agency havin g jurisdiction over natural resources affected by a project with that requiremen t shall not limit that authority of the Responsible Agency or agency having jurisdiction over natural resources affected by a project, or the authority of the Lead Agency, to approve, condition, or deny projects as provided by this division or any other provision of law.

MMRP PROCEDURES

The Mitigation Monitoring and Reporting Program (MMRP) has been prepared in compliance with PRC Section 21081.6. It describes the requirements and procedures to be followed by the City of Chino to ensure that all mitigation measures adopted as part of the Proposed Project will be carried out as described in the Draft IS/MND. Below lists each of the mitigation measures specified in th e Draft IS/MND and identifies the party or parties responsible for implementation and monitoring of each measure

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Mitigation Measure Implementation Schedule Verification I.(d) Aesthetics
AES-1 A facilities lighting plan shall be prepared for both project sites and shall demonstrate that glare from operating and safety night lights that may create light and glare affecting adjacent occupied property are sufficiently shielded to prevent light and glare from spilling into occupied structures or rail corridor. This plan shall specifically indicate that the lighting doesn’t exceed

1.0 lumen at the nearest residence or the rail corridor to any lighting located within the project footprint. This plan shall be implemented by the City to minimize light or glare intrusion onto adjacent properties.

A lighting plan shall be completed prior
to construction of the onsite structure
and lighting installed accordingly during
construction

A copy of the lighting design or plan shall
be retained in the project file, and City
field inspectors shall verify that the
design/plan is being implementing
without adverse impact on adjacent light
sensitive uses. Field notes from
inspections shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification III.(b). Air Quality
AQ-1 Fugitive Dust Control. The following measures shall be incorporated into Project plans and specifications for
implementation:
• Apply soil stabilizers or moisten inactive areas.
• Water exposed surfaces as needed to avoid visible dust leaving the construction site (typically 2-3 times/day). • Cover all stock piles with tarps at the end of each day or as needed.
• Provide water spray during loading and unloading of
earthen materials.
• Minimize in-out traffic from construction zone.
• Cover all trucks hauling dirt, sand, or loose material and require all trucks to maintain at least two feet of freeboard. • Sweep streets daily if visible soil material is carried out from the construction site.

This measure shall be implemented during construction, and shall be included in the construction contract as a contract specification.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction.

A copy of the construction contract
including this air mitigation measures
shall be retained in the project file.

Verification of implementation shall be
based on field inspections by City of
Chino inspection personnel that verify
the air quality measures have been
implemented as required in these
measures. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification III.(b). Air Quality
AQ-2 Exhaust Emissions Control. The following measures shall be incorporated into Project plans and specifications for
implementation:
• Utilize well-tuned off-road construction equipment.
• Establish a preference for contractors using Tier 3 or better heavy equipment.
• Enforce 5-minute idling limits for both on-road trucks and off-road equipment.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction.

A copy of the construction contract
including this air mitigation measures
shall be retained in the project file.

Verification of implementation shall be
based on field inspections by City of
Chino inspection personnel that verify
the air quality measures have been
implemented as required in these
measures. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification IV.(a). Biological Resources
BIO-1 Nesting bird surveys shall be conducted by a qualified avian biologist no more than three (3) days prior to vegetation clearing or ground disturbance activities. Preconstruction surveys shall focus on both direct and indirect evidence of nesting, including nest locations and nesting behavior. The qualified avian biologist will make every effort to avoid potential nest predation as a result of survey and monitoring efforts. If active nests are found during the preconstruction nesting bird surveys, a Nesting Bird Plan (NBP) shall be prepared and implemented by the qualified avian biologist. At a minimum, the NBP shall include guidelines for addressing active nests, establishing buffers, ongoing monitoring, establishment of avoidance and minimization measures, and reporting. The size and location of all buffer zones, if required, shall be based on the nesting species, individual/pair’s behavior, nesting stage, nest location, its sensitivity to disturbance, and intensity and duration of the disturbance activity. To avoid impacts to nesting birds, any grubbing or vegetation removal should occur outside peak breeding
season (typically February 1 through September 1).

Construction shall occur outside of the
nesting season or a copy of the field
survey documenting no nesting birds
shall be completed prior to initiating
construction within the nesting season.

City of Chino personnel shall document
the dates of construction. If construction
is proposed to occur within the nesting
season, a copy of the field survey docu-
menting the absence of nesting birds
shall be retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification V(a). Cultural Resources
CUL-1 Should any cultural resources be encountered during construction of these facilities, earthmoving or grading activities in the immediate area of the finds shall be halted and an onsite inspection shall be performed immediately by a qualified archaeologist. Responsibility for making this determination shall be with the City. The archaeological professional shall assess the find, determine its significance, and make recommendations for appropriate mitigation
measures within the guidelines of the California Environmental Quality Act.

Any response to exposed resources
shall occur during construction. Any
reports documenting management and
findings for accidentally exposed
resources shall be completed within one
year of the discovery.

A copy of the Program shall be retained
in the project file. Verification of
implementation shall be based on field
inspections by City of Chino inspection
personnel that verify the archaeological
monitoring program is being imple-
mented by the contractor as required in
this measure. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification V(a). Cultural Resources
CUL-2 Should human remains or funerary objects be encountered during any activities associated with the project, work in the immediate vicinity (within a 100-foot buffer of the find) shall cease and the County Coroner shall be contacted pursuant to State Health and Safety Code §7050.5 and that code enforced for the duration of the project.

This measure shall be implemented
during construction if human remains are
exposed during construction

The City of Chino shall retain all records
of the discovery and management
actions taken in regard to human
remains in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification VII.(b). Geology and Soils
GEO-1 Stored backfill material shall be covered with water resistant material during periods of heavy precipitation to reduce the potential for rainfall erosion of the material. If covering is not feasible, then measures such as the use of straw bales or sand bags shall be used to capture and hold eroded material on the project site for future cleanup.

These measures shall be identified in the
project Stormwater Pollution Prevention
Plan (SWPPP) and implemented during
construction.

A copy of the SWPPP shall be retained
in the project file. Verification of
implementation shall be based on field
inspections by City of Chino inspection
personnel that verify the SWPPP BMPs
have been implemented as required in
this measure. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification VII.(b). Geology and Soils
GEO-2 Excavated areas shall be properly backfilled and compacted.

Paved areas disturbed by this project will be repaved in such a manner that pipeline connections within adjacent roadways and other disturbed areas are returned to as near the pre- project condition as is feasible.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction.

A copy of the construction contract
including this geology/soils mitigation
measure shall be retained in the project
file. Verification of implementation shall
be based on field inspections by City of
Chino inspection personnel that verify
the geology/soils measures have been
implemented as required in these
measures. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification VII.(b). Geology and Soils
GEO-3 All exposed, disturbed soil (trenches, stored backfill, etc.) will be sprayed with water or soil binders twice a day or more frequently if fugitive dust is observed migrating from either of the well sites within which the water facilities are being installed.

These measures shall be identified in the
project Stormwater Pollution Prevention
Plan (SWPPP) and implemented during
construction.

A copy of the SWPPP shall be retained
in the project file. Verification of
implementation shall be based on field
inspections by City of Chino inspection
personnel that verify the SWPPP BMPs
have been implemented as required in
this measure. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification VII.(b). Geology and Soils
GEO-4 The length of trench which can be left open at any given time will be limited to that needed to reasonably perform
construction activities. This will serve to reduce the amount of backfill stored onsite at any given time.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction.

A copy of the construction contract
including this geology/soils mitigation
measure shall be retained in the project
file. Verification of implementation shall
be based on field inspections by City
inspection personnel that verify the
geology/soils measures have been
implemented as required in these
measures. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
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Mitigation Measure Implementation Schedule Verification VII.(b). Geology and Soils
GEO-5 The City shall identify any additional construction-related erosion and sedimentation prevention BMPs to ensure that the discharge of surface water does not cause erosion
downstream of the discharge point. This shall be
accomplished by reducing the energy of any site discharge through an artificial energy dissipater or equivalent device. If any substantial erosion or sedimentation occurs, any erosion or sedimentation damage shall be restored to pre-discharge conditions.

The BMPs identified pursuant to this
measure, and the requirement that
substantial erosion or sedimentation be
restored to pre-discharge conditions
shall be included in the construction
contract as a contract specification and
implemented by the contractor during
construction.

A copy of the construction contract
including this geology/soils mitigation
measure shall be retained in the project
file. Verification of implementation shall
be based on field inspections by the City.

Field notes documenting verification
shall be retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification VII.(f). Geology and Soils
GEO-6 Should any paleontological resources be encountered during construction of these facilities, earthmoving or grading activities in the immediate area of the finds shall be halted and an onsite inspection should be performed immediately by a qualified paleontologist. Responsibility for making this determination shall be with the City’s onsite inspector. The paleontological professional shall assess the find, determine its significance, and determine appropriate mitigation
measures within the guidelines of the California Environmental Quality Act that shall be implemented to minimize any impacts to a paleontological resource.

Any response to exposed resources
shall occur during construction. Any
reports documenting management and
findings for accidentally exposed
resources shall be completed within one
year of the discovery.

City of Chino shall be notified within
24-hours of accidental exposure of any
paleontological resources. A copy of
initial findings shall be provided to the
City of Chino and retained in the project
file. A copy of the final report shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification IX.(a). Hazards and Hazardous Materials
HAZ-1 A Hazardous Materials Business Plan prepared and submitted to the Certified Unified Program Agency shall incorporate best management practices designed to minimize the potential for accidental release of such chemicals and shall meet the standards required by California law for Hazardous Materials Business Plans. The facility managers shall implement these measures to reduce the potential for accidental releases of hazardous materials or wastes. The Hazardous Materials
Business Plan shall be approved prior to operation of the facilities proposed by this project.

The Business Plan shall be completed
prior to operation of the facility.

A copy of the Business Plan shall be
retained in the project file and shall be
submitted to the City or County for their
records. This Plan shall be retained at
the Project site and made available to
employees working at the facility. Site
inspections shall be performed to ensure
compliance with the best management
practices outlined in the Business Plan.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification IX.(a). Hazards and Hazardous Materials
HAZ-2 The Hazardous Materials Business Plan shall assess the potential accidental release scenarios and identify the equipment and response capabilities required to provide immediate containment, control, and collection of any released hazardous material. Prior to issuance of the certificate of occupancy, the proposed project facilities shall ensure that necessary equipment has been installed and training of
personnel has occurred to obtain sufficient resources to control and prevent the spread of any accidentally released hazardous or toxic materials.

The Business Plan shall be completed
prior to operation of an individual facility.

A copy of the Business Plan shall be
retained in the project file. This Plan shall
be retained at the Project site and made
available to employees working at the
facility. Site inspections shall be
performed to ensure adequate
equipment has been provided and
personnel have been adequately trained
in accordance with the Business Plan.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification IX.(a). Hazards and Hazardous Materials
HAZ-3 Prior to occupancy of any site for which storage of any acutely hazardous material will be required, such as chlorine gas, modeling of pathways of release and potential exposure of the public to any released hazardous material shall be completed and specific measures, such as secondary containment, shall be implemented to ensure that sensitive receptors will not be exposed to significant health threats based on the toxic substance involved.

The modeling shall be completed prior to
operation of a given proposed facility and
measures to protect sensitive receptors
implemented during construction.

A copy of the results of the modeling and
any measures developed to minimize
accidental exposure to hazardous
materials shall be retained in the Project
file. Site inspections shall be performed
to ensure the proper procedures
pertaining to storage and handling of
acutely hazard waste are adhered to.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification IX.(a). Hazards and Hazardous Materials
HAZ-4 All hazardous materials during both operation and construction of the proposed project facilities shall be delivered to a licensed treatment, disposal, or recycling facility and be disposed of in accordance with State and federal law.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction.

Additionally, this measure shall be
implemented ongoing during operation.

A copy of the construction contract
including this hazards mitigation
measure shall be retained in the project
file. Verification of implementation shall
be based on field inspections by the City.

Field notes documenting verification
shall be retained in the project file.

During operations, records shall be kept
documenting all hazardous waste
disposal and site inspections by the City
shall be performed to ensure adherence
to this measure.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification IX.(a). Hazards and Hazardous Materials
HAZ-5 Before determining that an area contaminated as a result of an accidental release during project operation or construction is fully remediated, specific thresholds of acceptable clean-up shall be established and sufficient samples shall be taken and tested within the contaminated area to verify that these clean- up thresholds have been met in compliance with State and federal law.

This measure shall be implemented
following an accidental spill of any
hazardous material at any location within
the project footprint.

A copy of the specific threshold used for
a spill shall be retained in the project file,
and a copy of the sample test data
verifying clean-up of the site shall also
be retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification IX.(b). Hazards and Hazardous Materials
HAZ-6 All accidental spills or discharge of hazardous material during construction activities shall be reported to the Certified Unified Program Agency and shall be remediated in compliance with applicable federal, State, and local regulations regarding cleanup and disposal of the contaminant released. The
contaminated waste shall be collected and disposed of at a licensed disposal or treatment facility. This measure shall be incorporated into the Stormwater Pollution Prevention Plan (SWPPP) prepared for the proposed State Street Water
Treatment Project facilities. Prior to accepting the site as remediated, the area contaminated shall be tested to verify that any residual concentrations meet the standard for future residential or public use of the site.

This measure shall be included in the
construction contract as a contract
specification and implemented by the
contractor during construction, and shall
be included as a measure in the
SWPPP.

A copy of the SWPPP and construction
contract shall be retained in the project
file. Verification of implementation shall
be based on field inspections by IEUA.

Field notes documenting verification
shall be retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification X.(a). Hydrology and Water Quality
HYD-1 The Project-Specific Water Quality Management Plan (WQMP) which defines catch basins and other drainage capture
mechanisms as permanent Best Management Practices shall be implemented to prevent long-term surface runoff from discharging pollutants from site on which construction has been completed. The WQMP shall be implemented with the goal of achieving a reduction in pollutants following
construction to control urban runoff pollution to the maximum extent practicable based on available, feasible best
management practices at the time of construction. The
stormwater discharge from the project site shall be treated to control pollutant concentrations for all pollutants, but especially for those identified pollutants that impair downstream surface water quality (Santa Ana River) at the time construction occurs. Source Control BMPs reduce the potential for urban runoff and pollutants from coming into contact with one another. Source Control BMPs that may be incorporated into the project are described in County’s Technical Guidance Manual (TGM).

This measure shall be incorporated into
the WQMP and these measures shall be
incorporated into the project design. The
WQMP BMPs shall be applicable for the
duration of project operation.

A copy of the WQMP and project design
shall be retained in the project file.

Verification of implementation shall be
based on field inspections by City of
Chino inspection personnel that verify
the WQMP BMPs have been imple-
mented as required in this measure.

Field notes documenting verification
shall be retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification X.(a). Hydrology and Water Quality
HYD-2 City of Chino shall require that the construction contractor prepare and implement a Storm Water Pollution Prevention Plan (SWPPP) which specifies Best Management Practices
(BMPs) that will prevent all construction pollutants from con- tacting stormwater and with the intent of keeping all products of erosion from moving offsite into receiving waters. The SWPPP shall include a Spill Prevention and Cleanup Plan that identifies the methods of containing, cleanup, transport and proper disposal of hazardous chemicals or materials released during construction activities that are compatible with applicable laws and regulations. BMPs to be implemented in the SWPPP may include but not be limited to:

• The use of silt fences;

This measure shall be incorporated into
the SWPPP and construction contract
and implemented during construction.

A copy of the SWPPP and construction
contract shall be retained in the project
file. Verification of implementation shall
be based on field inspections by City of
Chino inspection personnel that verify
the SWPPP BMPs have been imple-
mented as required in this measure.

Field notes documenting verification
shall be retained in the project file.

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Mitigation Measure Implementation Schedule Verification • The use of temporary stormwater desilting or retention basins;
• The use of water bars to reduce the velocity of stormwater runoff;
• The use of wheel washers on construction equipment
leaving the site;
• The washing of silt from public roads at the access point to the site to prevent the tracking of silt and other pollutants from the site onto public roads;
• The storage of excavated material shall be kept to the minimum necessary to efficiently perform the construction activities required. Excavated or stockpiled material shall not be stored in water courses or other areas subject to the flow of surface water; and
• Where feasible, stockpiled material shall be covered with waterproof material during rain events to control erosion of soil from the stockpiles.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-1 The following construction noise control practices shall be implemented whilst constructing the proposed State Street Water Treatment Project within the entirety of the project footprint:
• Construction staging and activities shall be located in areas as far as practicable from sensitive receivers or in areas where receivers can be shielded from construction noise.
• Whenever practicable, construction activities shall be scheduled so as to avoid operating several pieces of
equipment simultaneously.
• All heavy-duty stationary construction equipment shall be placed so that emitted noise is directed away from the
nearest sensitive receivers.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with the
requirements in this measure. The
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-2 Construction shall be conducted during the hours identified as acceptable by the jurisdiction within which each construction activity takes place. Throughout the entirety of the project footprint, construction between the hours of 7:00 a.m. and 6:00 p.m. Monday through Friday. Extended hours of construction and construction on weekends are allowable at various points within the project footprint depending on the jurisdiction as follows: in the City of Montclair, construction shall be limited to the hours of 7:00 a.m. and 8:00 p.m. on any given day; in the City of Chino within the hours of 7:00 a.m. and 6:00 p.m.

Monday through Saturday, with no construction allowed on Sundays and federal holidays; in Unincorporated San
Bernardino County construction shall be limited to between 7:00 a.m. and 7:00 p.m., except Sundays and Federal
holidays. The above limitations on construction hours shall apply in all cases except where a declared emergency exists.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-3 The City shall establish a noise complaint response program and shall respond to any noise complaints received for this project by measuring noise levels at the affected receptor site.

If the noise level exceeds an Ldn of 60 dBA exterior or an Ldn of 45 dBA interior at the receptor, the City will implement adequate measures (which may include portable sound
attenuation walls, use of quieter equipment, shift of
construction schedule to avoid the presence of sensitive receptors, etc.) to reduce noise levels to the greatest extent feasible.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-4 All construction equipment be operated with mandated noise control equipment (mufflers or silencers). Enforcement will be accomplished by random field inspections by City personnel during construction activities.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-5 Equipment not in use for five minutes shall be shut off.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-6 Equipment shall be maintained and operated such that loads are secured from rattling or banging.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-7 Construction employees shall be trained in the proper operation and use of equipment consistent with these
mitigation measures, including no unnecessary revving of equipment.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(a). Noise
NOI-8 No radios or other sound equipment shall be used at this site unless required for emergency response by the contractor.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XIII.(b). Noise
NOI-9 During future initiation of construction activities with heavy equipment within 300 feet of occupied residences, vibration field tests shall be conducted at the nearest occupied
residences upon receipt. To the extent feasible, if vibrations exceed 72 VdB, the construction activities shall be revised (smaller equipment, reduced activity) to reduce vibration below this threshold.

This measure shall be implemented
during construction and included in the
contract with the construction contractor.

City of Chino personnel shall verify that
construction activities comply with this
requirement. The verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification XVII.(a). Transportation / Traffic
TRAN-1 The construction contractor will provide adequate traffic management resources, as determined by the City of Chino.

The City shall require a construction traffic management plan for work in public roads that complies with the Work Area Traffic Control Handbook, or other applicable standard, to provide adequate traffic control and safety during excavation activities. The traffic management plan shall be prepared and approved by the City prior to initiation of excavation or pipeline construction. At a minimum this plan shall include how to minimize the amount of time spent on construction activities; how to minimize disruption of vehicle and
alternative modes of transport traffic at all times, but particularly during periods of high traffic volumes; how to maintain safe traffic flow on local streets affected by construction at all times, including through the use of adequate signage, protective devices, flag persons or police assistance to ensure that traffic can flow adequately during construction; the identification of alternative routes that can meet the traffic flow requirements of a specific area,
including communication (signs, webpages, etc.) with drivers and neighborhoods where construction activities will occur; and at the end of each construction day roadways shall be prepared for continued utilization without any significant roadway hazards remaining.

This measure shall be implemented
during construction.

Verification of implementation shall be
based on field inspections by City
inspection personnel that verify adequate
traffic management resources are being
used by the contractor as required in this
measure. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification XVII.(a). Transportation / Traffic
TRAN-2 The City shall require that all disturbances to public roadways be repaired in a manner that complies with the Standard Specifications for Public Works Construction
(green book) or other applicable County of San Bernardino standard design requirements.

This measure shall be implemented
during construction.

Verification of implementation shall be
based on field inspections by City
inspection personnel that verify adequate
traffic management resources are being
used by the contractor as required in this
measure. Field notes documenting
verification shall be retained in the
project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XVIII.(a). Tribal Cultural Resources
TCR-1 Retain a Native American Monitor Prior to Commencement of Ground-Disturbing Activities

A. The project applicant/lead agency shall retain a Native American Monitor from or approved by the Gabrieleño
Band of Mission Indians – Kizh Nation. The monitor shall be retained prior to the commencement of any “ground-
disturbing activity” for the subject project at all project locations (i.e., both on-site and any off-site locations that are included in the project description/definition and/or required in connection with the project, such as public improvement work). “Ground- disturbing activity” shall
include, but is not limited to, demolition, pavement
removal, potholing, auguring, grubbing, tree removal,
boring, grading, excavation, drilling, and trenching.

B. A copy of the executed monitoring agreement shall be submitted to the Lead Agency prior to the earlier of the commencement of any ground-disturbing activity, or the
issuance of any permit necessary to commence a ground-
disturbing activity.

C. The monitor will complete daily monitoring logs that will provide descriptions of the relevant ground-disturbing
activities, the type of construction activities performed, locations of ground- disturbing activities, soil types, cultural-related materials, and any other facts, conditions,

This measure shall be implemented
during construction and followed through
until final disposition of such resources
has been achieved.

City of Chino shall provide
documentation verifying access to the
project site by the Gabrieleño Band of
Mission Indians-Kizh (Keech-Kit’c)
Nation (GBMI). A report of monitoring
activities following completion of ground
disturbing activities shall be provided to
City of Chino by the developer and GBMI
documenting all findings during
monitoring activities. A copy of this
documentation shall be retained in the
project file.

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Mitigation Measure Implementation Schedule Verification materials, or discoveries of significance to the Tribe.

Monitor logs will identify and describe any discovered
TCRs, including but not limited to, Native American
cultural and historical artifacts, remains, places of
significance, etc., (collectively, tribal cultural resources, or “TCR”), as well as any discovered Native American
(ancestral) human remains and burial goods. Copies of
monitor logs will be provided to the project applicant/lead agency upon written request to the Tribe.

D. On-site tribal monitoring shall conclude upon the latter of the following (1) written confirmation to the Kizh from a designated point of contact for The project applicant/lead agency that all ground-disturbing activities and phases that may involve ground-disturbing activities on the project site or in connection with the project are complete; or (2) a determination and written notification by the Kizh to The project applicant/lead agency that no future, planned
construction activity and/or development/construction
phase at the project site possesses the potential to impact Kizh TCRs.

E. Upon discovery of any TCRs, all construction activities in the immediate vicinity of the discovery shall cease (i.e., not less than the surrounding 50 feet) and shall not
resume until the discovered TCR has been fully assessed by the Kizh monitor and/or Kizh archaeologist. The Kizh will recover and retain all discovered TCRs in the form and/or manner the Tribe deems appropriate, in the
including for educational, cultural and/or historic purposes.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification XVIII.(a). Tribal Cultural Resources
TCR-2 Unanticipated Discovery of Human Remains and Associated Funerary Objects

A. Native American human remains are defined in PRC
5097.98 (d)(1) as an inhumation or cremation, and in any state of decomposition or skeletal completeness.

Funerary objects, called associated grave goods in
Public Resources Code Section 5097.98, are also to be
treated according to this statute.

B. If Native American human remains and/or grave goods discovered or recognized on the project site, then all
construction activities shall immediately cease. Health and Safety Code Section 7050.5 dictates that any
discoveries of human skeletal material shall be
immediately reported to the County Coroner and all
ground-disturbing activities shall immediately halt and shall remain halted until the coroner has determined the nature of the remains. If the coroner recognizes the
human remains to be those of a Native American or has
reason to believe they are Native American, he or she
shall contact, by telephone within 24 hours, the Native American Heritage Commission, and Public Resources
Code Section 5097.98 shall be followed.

C. Human remains and grave/burial goods shall be treated alike per California Public Resources Code section
5097.98(d)(1) and (2).

D. Construction activities may resume in other parts of the project site at a minimum of 200 feet away from
discovered human remains and/or burial goods, if the
Kizh determines in its sole discretion that resuming
construction activities at that distance is acceptable and provides the project manager express consent of that
determination (along with any other mitigation measures the Kizh monitor and/or archaeologist deems necessary). (CEQA Guidelines Section 15064.5(f).)
E. Preservation in place (i.e., avoidance) is the preferred manner of treatment for discovered human remains
and/or burial goods. Any historic archaeological material that is not Native American in origin (non-TCR) shall be curated at a public, non-profit institution with a research interest in the materials, such as the Natural History

This measure shall be implemented
during construction and followed through
until final disposition of such resources
has been achieved.

City of Chino shall provide documenta-
tion verifying access to the project site by
the Gabrieleño Band of Mission Indians-
Kizh (Keech-Kit’c) Nation (GBMI). A
report of monitoring activities following
completion of ground disturbing activities
shall be provided to City of Chino by
GBMI documenting all findings during
monitoring activities. Discovery of
cultural resources shall be reported to
City of Chino within 24 hours of expo-
sure. GBMI shall be notified in
concurrence with City of Chino in the
event any cultural resources are found.

Documentation shall be provided that
ground disturbing activities were
immediately halted in the area of the
discovery and of all management actions
taken following the discovery. A copy of
this documentation shall be retained in
the project file.

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Mitigation Measure Implementation Schedule Verification Museum of Los Angeles County or the Fowler Museum, if
such an institution agrees to accept the material. If no institution accepts the archaeological material, it shall be offered to a local school or historical society in the area for educational purposes.

F. Any discovery of human remains/burial goods shall be kept confidential to prevent further disturbance.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

Mitigation Measure Implementation Schedule Verification XVIII.(a). Tribal Cultural Resources
TCR-3 Procedures for Burials and Funerary Remains:

A. As the Most Likely Descendant (MLD), the Koo-nas-gna Burial Policy shall be implemented. To the Tribe, the term “human remains” encompasses more than human bones.

In ancient times, as well as historic times, Tribal Traditions included, but were not limited to, the preparation of the soil for burial, the burial of funerary objects with the deceased, and the ceremonial burning of human remains.

B. If the discovery of human remains includes four or more burials, the discovery location shall be treated as a
cemetery and a separate treatment plan shall be created.

C. The prepared soil and cremation soils are to be treated in the same manner as bone fragments that remain intact.

Associated funerary objects are objects that, as part of the death rite or ceremony of a culture, are reasonably
believed to have been placed with individual human
remains either at the time of death or later; other items made exclusively for burial purposes or to contain human remains can also be considered as associated funerary
objects. Cremations will either be removed in bulk or by means as necessary to ensure complete recovery of all
sacred materials.

D. In the case where discovered human remains cannot be fully documented and recovered on the same day, the
remains will be covered with muslin cloth and a steel plate that can be moved by heavy equipment placed over the
excavation opening to protect the remains. If this type of

This measure shall be implemented
during construction and followed through
until final disposition of such resources
has been achieved.

The City of Chino shall retain all records
of the discovery and management
actions taken in regard to human
remains in the project file and shall share
the records with GBMI.

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Mitigation Measure Implementation Schedule Verification steel plate is not available, a 24-hour guard should be posted outside of working hours. The Tribe will make
every effort to recommend diverting the project and
keeping the remains in situ and protected. If the project cannot be diverted, it may be determined that burials will be removed.

E. In the event preservation in place is not possible despite good faith efforts by the project applicant/developer and/or landowner, before ground-disturbing activities may resume on the project site, the landowner shall arrange a
designated site location within the footprint of the project for the respectful reburial of the human remains and/or ceremonial objects.

F. Each occurrence of human remains and associated
funerary objects will be stored using opaque cloth bags.

All human remains, funerary objects, sacred objects and objects of cultural patrimony will be removed to a secure container on site if possible. These items should be
retained and reburied within six months of recovery. The site of reburial/repatriation shall be on the project site but at a location agreed upon between the Tribe and the City at a site to be protected in perpetuity. There shall be no publicity regarding any cultural materials recovered.

G. The Tribe will work closely with the project’s qualified archaeologist to ensure that the excavation is treated
carefully, ethically and respectfully. If data recovery is approved by the Tribe, documentation shall be prepared
and shall include (at a minimum) detailed descriptive
notes and sketches. All data recovery data recovery-
related forms of documentation shall be approved in
advance by the Tribe. If any data recovery is performed, once complete, a final report shall be submitted to the Tribe and the NAHC. The Tribe does NOT authorize any
scientific study or the utilization of any invasive and/or destructive diagnostics on human remains.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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Mitigation Measure Implementation Schedule Verification XIX.(e). Utilities and Service Systems
UTIL-1 The contract with demolition and construction contractors shall include the requirement that all materials that can feasibly be recycled shall be salvaged and recycled. This includes but not limited to wood, metals, concrete, road base and asphalt. The contractors shall submit a recycling plan to the City for review and approval prior to the construction of demolition/
construction activities.

This measure shall be included in the
construction contract and implemented
during construction.

Verification of implementation shall be
based on field inspections by City of
Chino inspection personnel that verify
adequate traffic management resources
are being used by the contractor as
required in this measure. Field notes
documenting verification shall be
retained in the project file.

Source Responsible Party Status / Date / Initials
Initial Study City of Chino

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EVALUATION OF ENVIRONMENTAL IMPACTS:

1) A brief explanation is required for all answers except "No Impact" answers that are adequately supported by the information sources a lead agency cites in the parentheses following each question. A "No Impact" answer is adequately supported if the referenced information sources show that the impact simply does not apply to projects like the one involved (e.g., the project falls outside a fault rupture zone). A "No Impact" answ er should be explained where it is based on project-specific factors as well as general standards (e.g., the project will not expose sensitive receptors to pollutants, based on a project -specific screening analysis).

2) All answers must take account of the whole action involved, including off-site as well as on- site, cumulative as well as project-level, indirect as well as direct, and construction as well as operational impacts.

3) Once the lead agency has determined that a particular physical impact may occur, then the checklist answers must indicate whether the impact is potentially significant, less than significant with mitigation, or less than significant. "Potentially Significant Impact" is appropriate if there is substantial evidence that an effect may be significant. If there are one or more "Potentially Significant Impact" entries when the determination is made, an EIR is required.

4) "Negative Declaration: Less Than Significant With Mitigation Incorporated" applies where the incorporation of mitigation measures has reduced an effect from "Potentially Significant Impact" to a "Less Than Significant Impact." The lead agency must describe the mitigation measures, and briefly explain how they reduce the effect to a less than significant level (mitigation measures from "Earlier Analyses," as described in (5) below, may be cross - referenced).

5) Earlier analyses may be used where, pursuant to the tiering, program EIR, or other CEQA process, an effect has been adequately analyzed in an earlier EIR or negative declaration.

Section 15063(c)(3)(D). In this case, a brief discussion should identify the following:

a) Earlier Analysis Used. Identify and state where they are available for review. b) Impacts Adequately Addressed. Identify which effects from the above checklist were within the scope of and adequately analyzed in an earlier document pursuant to applicable legal standards, and state whether such effects were addressed by mitigation measures based on the earlier analysis.
c) Mitigation Measures. For effects that are "Less than Significant with Mitigation Measures Incorporated," describe the mitigation measures which were incorporated or refined from the earlier document and the extent to w hich they address site -specific conditions for the project.

6) Lead agencies are encouraged to incorporate into the checklist references to information sources for potential impacts (e.g., general plans, zoning ordinances). Reference to a previously prepared or outside document should, where appropriate, include a reference to the page or pages where the statement is substantiated.

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7) Supporting Information Sources: A source list should be attached, and other sources used or individuals contacted should be cited in the discussion.

8) This is only a suggested form, and lead agencies are free to use different formats; however, lead agencies should normally address the questions from this checklist that are relevant to a project's environmental effects in whatever format is selected.

9) The explanation of each issue should identify:

a) the significance criteria or threshold, if any, used to evaluate each question; and b) the mitigation measure identified, if any, to reduce the impact to less than significance.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

I. AESTHETICS: Except as provided in Public
Resources Code Section 21099, would the project:

a) Have a substantial adverse effect on a scenic vista?

b) Substantially damage scenic resources, including,
but not limited to, trees, rock outcroppings, and historic buildings within a state scenic highway?

c) In non-urbanized areas, substantially degrade the
existing visual character or quality of public views of the site and its surroundings? (Public views are those
that are experienced from publicly accessible vantage
point). If the project is in an urbanized area, would the project conflict with applicable zoning or other
regulations governing scenic quality?

d) Create a new source of substantial light or glare
which would adversely affect day or nighttime views in
the area?

SUBSTANTIATION

a. Less Than Significant Impact – Adverse impacts to scenic vistas can occur in one of two ways. First, an area itself may contain existing scenic vistas that would be altered by new development. The proposed project extends from the existing State Street Facility at the corner of State Street and Benson Avenue to Well 12, located just west of Central Avenue along Phillips Boulevard. The proposed project would install pretreatment at each wellhead, a GAC water treatment system, an IX water treatment system, an 8,500-gallon brine waste storage tank, a 2,500 -gallon softener waste storage tank, and up to about 22,480 LF of water transmiss ion, brine, softener waste, and sewer waste pipeline. The proposed project will involve installing new structures at the State Street Facility (Figure 3 ) to contain the water treatment systems and various accompanying site features. The building height would be about 25 feet, which would be similar to the nearby reservoir, which is about 30 feet in height. A major portion of the project would consist of installation of pipeline below ground within existing road rights of way, including four different pipeline segments serving different purposes totaling up to 22,480 LF. A review of the project area determined that there are no scenic vistas located internally within the project footprint of the pipeline alignments. The pipeline installation may impact views temporarily during construction; however, once constructed the pipelines will be located underground and there will be no potential to impact scenic vistas within the project footprint. G iven that the proposed State Street Water Treatment Plant site is located at the Well 14 site which contains an existing well , Reservoir 5, and other City water infrastructure facilities, it is anticipated that the addition of the State Street Water Treatment facilities at the existing State Street Facility site would be consistent with the surrounding visual setting.

A scenic vista impact can also occur when a scenic vista can be viewed from the project area or immediate vicinity and a proposed project may interfere with the view to a scenic vista. The installation of the pipeline alignments would be constructed belowground within existing roadways. Once constructed, the roadways will be returned to their original condition, and repaved. Given that the project would not degrade views to nearby scenic vis tas and that the visual effects of pipeline installation and repaved sections of roadway would not substantially alter the views in the project footprint in the long -term, implementation of the pipeline alignments is not expected to cause any substantial adverse effects on any important scenic vistas. At the proposed State Street Treatment Plant site, views of the nearby mountains are limited due to surrounding existing development, which

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includes the railroad and other industrial facilities in the project vicinity. As such, development of the Wellhead Treatment Plant at this site is not anticipated to obstruct any scenic vistas, particularly given that the project site is currently developed and contains the existing State Street Facilities, including an existing out of service well and a reservoir, which will remain in place as part of this project.

Additionally, the improvements at the Well 12 site location are anticipated to be consistent with the existing site uses, and while the project includes the in stallation of a new enclosure, the onsite facilities will remain consistent with that which exists at present , particularly given that there are two existing reservoirs on the Well 12 site as well . Furthermore, no scenic viewsheds can be accessed from the site that would be interrupted by the proposed modifications at the site. Therefore, implementation of the proposed project is not expected to cause any substantial adverse effects on any important scenic vistas. This potential impact is considered a les s than significant adverse aesthetic impact. No mitigation is required.

b. Less That Significant Impact – The project footprint does not contain any significant scenic resources.

The pipeline alignment will be installed within existing roadways, none of which are located within an Officially Designated Scenic Highway . Furthermore, the proposed project would otherwise be installed within the confines of the project sites (the State Street/Well 14 Facility and Well 12 Facility).

None of the proposed activities will impact any scenic resources or views of scenic resources in the area. The State Street Facility site does not contain any trees or other scenic resources. However, the Well 12 site does contain several trees, which are anticipated to be retained on site. However, in the event that any of these trees must be removed, they will be replaced at a ratio of at least a 1:1 ratio. None of the trees at the site would be considered mature trees, and are not otherwise protected by the City of Chino’s Municipal Code. Additionally, the proposed project footprint does not contain any rock outcroppings or other significant scenic features because the entirety of the project footprint has been developed. Based on the site con ditions and immediate surroundings, the State Street Treatment Plant site itself does not contain any significant scenic resources. The pipeline alignments would be located within existing roadways ; therefore, no trees, rock outcroppings, historic building , or other scenic resources will be impacted as the pipeline footprint is limited to within existing roadways. Therefore, no damage to a scenic resource will occur and any impacts under this issue are considered less than significant.

c. Less Than Significant Impact – Please refer to the discussion under issue I(a) above. The proposed project would develop a State Street W ater Treatment Plant, in conjunction with various other site improvements at both the State Street Facility and the Well 12 Facility. Additionally, the project would install up to 22,480 LF of pipeline within road rights of way between the two facilities. Given that the proposed project is a water infrastructure project, which are land use independent, the development of the State Street Water Treatment Plant and associated infrastructure would not conflict with applicable zoning or other regulations governing scenic quality. Furthermore, the proposed project would install the proposed facilities at sites containing existing, similar infra structure, and therefore will blend in with the existing visual character of the site s. Additionally, the proposed height limit in this zone classification within Unincorporated San Bernardino County is 75’ and the proposed project will install facilities that are well below this limit at 25’. The installation of the well enclosure at the City of Chino Well 12 site would not exceed the height of existing facilities, including the two rese rvoirs and existing well at the site. The proposed pipeline alignments will occur within existing roadways ; as each segment of pipeline is installed, the roadway will be repaved with new asphalt, and will again function as a roadway. Given that construction of each segment of replacement pipeline is temporary, and that the roadways in which the pipeline shall be installed will be repaved once each segment of pipeline has been replaced, the visual character of t he project footprint and surrounding area will remain effectively unchanged. Therefore, impacts from implementation of the proposed State Street Water Treatment Project are considered less than significant under this issue.

d. Less Than Significant With Mitigation Incorporated – Implementation of the proposed p roject will create new locations of light sources during the construction phases of the project. There are residences near the Well 12 site, as well as other sensitive uses such as senior housing and a church.

Additionally, there are sensitive uses adjacent to the pipeline alignments at several locations. The

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proposed Well 1-site will not require significant additional lighting beyond that which currently exists, however, given that it is located in close proximity to sensitive receptors, mitigation is required to protect nearby uses from direct light and glare from new lighting . Additionally, while the proposed facilities at the State Street Water Treatment Plant site are not located near any sensit ive receptors, this site is located adjacent to the railroad, and therefore may require more stringent light and glare restrictions to prevent light and glare intrusion at the rail corridor. As such, the following mitigation measure will be implemented:

AES-1 A facilities lighting plan shall be prepared for both project sites and shall demonstrate that glare from operating and safety night lights that may create light and glare affecting adjacent occupied property are sufficiently shielded to prevent light and glare from spilling into occupied structures or rail corridor.

This plan shall specifically indicate that the lighting doesn’t exceed 2.0 lumen at the nearest residence or the rail corridor to any lighting located within the project footprint. This plan shall be implemented by the City to minimize light or glare intrusion onto adjacent properties.

The pipeline alignments will be constructed underground within existing roadways. No reflective materials or coatings are associated with th e pipeline installation . The construction activities are limited to daylight hours unless an emergency occurs, and the amount of security lighting needed during construction will be minimal. Therefore , the pipeline alignment is not anticipated that the site would create any new permanent sources of light or glare. With implementation of the above measure potential light and glare from the State Street Water Treatment Project can be controlled to a less than significant impact level.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

II. AGRICULTURE AND FORESTRY RESOURCES:

In determining whether impacts to agricultural
resources are significant environmental effects, lead
agencies may refer to the California Agricultural Land
Evaluation and Site Assessment Model (1997)
prepared by the California Dept. of Conservation as an
optional model to use in assessing impacts on
agriculture and farmland. In determining whether
impacts to forest resources, including timberland, are
significant environmental effects, lead agencies may
refer to information compiled by the California
Department of Forestry and Fire Protection regarding
the state’s inventory of forest land, including the Forest and Range Assessment Project and the Forest Legacy
Assessment project; and forest carbon measurement
methodology provided in Forest Protocols adopted by
the California Air Resources Board. Would the project:

a) Convert Prime Farmland, Unique Farmland or
Farmland of Statewide Importance (Farmland), as
shown on the maps prepared pursuant to the Farmland
Mapping and Monitoring Program of the California
Resources Agency, to non-agricultural use?

b) Conflict with existing zoning for agricultural use or a Williamson Act contract?

c) Conflict with existing zoning for, or cause rezoning of, forest land (as defined in Public Resources Code
section 12220(g)), timberland (as defined by Public
Resources Code section 4526), or timberland zoned
Timberland Production (as defined by Government
Code section 51104(g))?

d) Result in the loss of forest land or conversion of
forest land to non-forest use?

e) Involve other changes in the existing environment
which, due to their location or nature, could result in conversion of Farmland, to non-agricultural use or
conversion of forest land to non-forest use?

SUBSTANTIATION

a. No Impact – According to the San Bernardino Countywide Plan Agricultural Resources Map depicting the proposed project site and surrounding area (Figure II -1), the proposed project footprint is not located within any land designated as important or prime farmland, or farmland of statewide importance. There is unique farmland located south of the State Street Facility along Benson Avenue, but this land is outside of the project footprint and would therefore have no potential to be impacted by the implementation of the p roposed project. Additionally, the proposed project sites are located within sites that both contains an existing well and reservoirs, and are designated for such uses by the site location’s respective General Plan. The State Street Facility (Existing Wel l 14 and Reservoir 5 site) is located in the County of San Bernardino and is designated for Public Quasi Public use, while Well 12 is located in the City of Chino on land designated as Public Facility. As such, neither of these sites are planned for agricultural use. Therefore, the development of the State Street

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Water Treatment Project will not pose any significant adverse impact to agricultural resources or values. No mitigation is required.

b. No Impact – Implementation of the proposed p roject will not conflict with existing zoning for agricultural use, or a Williamson Act contract. As stated above, the State Street Facility is located in the County of San Bernardino and is designated for Public Quasi Public use with a zoning classification of IC: Community Industrial , while Well 12 is located in the City of Chino on land designated as Public Facility with a zoning classification of P: Public. Both sites contain existing City water infrastructure including wells and reservoirs , and the project will install pipeline within existing road rights -of-way; t he site does not currently contain any agricultural uses. Based on t his information, the proposed pr oject will not conflict with existing zoning for agricultural use, or a Williamson Act contract. No impacts are anticipated and no mitigation is required.

c. No Impact ‒ The project footprint is not located within forest land, timberland or timberland zoned for Timberland Production. Therefore, the proposed p roject will not conflict with existing zoning for, or cause rezoning of, forest land (as defined in Public Resources Code section 12220(g)), timberland (as defined by Public Resources Code section 4526), or timberland zoned Timberland Production (as defined by Government Code section 51104(g)). No impacts are anticipated and no mitigation is required.

d. No Impact – The project footprint is not located within forest land and has no commercial trees on the property; therefore, the project will not result in the loss of forest land or conversion of forest land to non-forest production use. No impacts are anticipated and no mitigation is required.

e. No Impact – Implementation of the proposed project will not involve other changes in the existing environment, which, due to their location or nature, could result in conversion of valuable farmland to non-agricultural use or forest to non -forest uses. N o agricultural or forest resources or uses occur within the general vicinity of the proposed project site. Therefore, no adverse impacts to agricultural, forest or timberland resources will result from project implementation and no mitigation is required.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

III. AIR QUALITY: Where available, the significance
criteria established by the applicable air quality
management or air pollution control district may be
relied upon to make the following determinations.

Would the project:

a) Conflict with or obstruct implementation of the
applicable air quality plan?

b) Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is
non-attainment under an applicable federal or state
ambient air quality standard?

c) Expose sensitive receptors to substantial pollutant
concentrations?

d) Result in other emissions (such as those leading to
odors) adversely affecting a substantial number of
people?

SUBSTANTIATION: The following information utilized in this section of the Initial Study was obtained from the Air Quality and GHG Impact Analysis, State Street Water Treatment Project, Chino (Unincorporated San Bernardino County) , California prepared by Giroux and Associates dated December 9, 2021 . This document is provided as Appendix 2 to this document.

Background

Climate

The climate of the Chino area, as with all of Southern California, is governed largely by the strength and location of the semi-permanent high-pressure center over the Pacific Ocean and the moderating effects of the nearby vast oceanic heat reservoir. Local climatic conditions are characterized by very warm summers, mild winters, infrequent rainfall, moderate daytime on -shore breezes, and comfortable humidities.

Unfortunately, the same climatic conditions that create such a desirable living climate combine to severely restrict the ability of the local atmosphere to disperse the large volumes of air pollution generated by the population and industry attracted in part by the climate.

Chino is situated in an area where the pollutants generated in coastal portions of the Los Angeles basin undergo photochemical reactions and then move inland across the project site during the daily sea breeze cycle. The resulting smog at times gives western San Bernardino County some of the worst air quality in all of California. Despite dramatic improvement in air quality in the local area throughout the 1980s, the project site is, nevertheless, expected to continue to experience some unhealthful air quality for at least the next decade.

Air Quality Standards

Existing air quality is measured at established South Coast Air Quality Management District (SCAQMD) air quality monitoring stations. Monitored air quality is evaluated and in the context of ambient air quality standards. These standards are the levels of air quality that are considered safe, with an adequate margin of safety, to protect the public health and welfare. National Ambient Air Quality Standards (NAAQS) and California Ambient Air Quality Standards (CAAQS) currently in effect are shown in Table III-1. Because the State of California had established Ambient Air Quality Standards (AAQS) several years before the federal

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action and because of unique air quality problems introduced by the restrictive dispersion meteorology, there is considerable difference between state and national clean air standards. Those standards currently in effect in California are shown in Table III-1. Sources and health effects of various pollutants are shown in Table III-2.

Table III-1

AMBIENT AIR QUALITY STANDARDS

Pollutant Average Time
California Standards 1 National Standards 2
Concentration 3 Method 4 Primary 3,5 Secondary 3,6 Method 7 Ozone (O3)8
1 Hour 0.09 ppm
(180 µg/m3) Ultraviolet
Photometry
– Same as
Primary
Standard
Ultraviolet
Photometry 8 Hour 0.070 ppm
(137 µg/m3)

0.070 ppm
(137 µg/m3)
Respirable
Particulate
Matter (PM10)9
24 Hour 50 µg/m3
Gravimetric or
Beta Attenuation
150 µg/m3 Same as
Primary
Standard
Inertial Separation
and Gravimetric
Analysis
Annual
Arithmetic
Mean
20 µg/m3 –
Fine Particulate
Matter (PM2.5)9
24 Hour – – 35 µg/m3
Same as
Primary
Standard Inertial Separation
and Gravimetric
Analysis Annual
Arithmetic
Mean
12 µg/m3 Gravimetric or Beta
Attenuation 12.0 µg/m3 15.0 µg/m3
Carbon
Monoxide
(CO)
1 Hour 20 ppm
(23 mg/m3) Non-Dispersive
Infrared Photometry
(NDIR)
35 ppm
(40 mg/m3) –
Non-Dispersive
Infrared Photometry
(NDIR)
8 Hour 9 ppm
(10 mg/m3)
9 ppm
(10 mg/m3) –
8 Hour
(Lake Tahoe) 6 ppm (7 mg/m3) – –
Nitrogen
Dioxide (NO2)10
1 Hour 0.18 ppm
(339 µg/m3) Gas Phase
Chemiluminescence
100 ppb
(188 µg/m3) –
Gas Phase
Chemiluminescence Annual
Arithmetic
Mean

0.030 ppm
(57 µg/m3)

0.053 ppm
(100 µg/m3)
Same as
Primary
Standard
Sulfur Dioxide
(SO2)11
1 Hour 0.25 ppm
(655 µg/m3)
Ultraviolet
Fluorescence
75 ppb
(196 µg/m3) –
Ultraviolet
Flourescense;
Spectrophotometry
(Paraosaniline
Method)
3 Hour – – 0.5 ppm
(1300 µg/m3)
24 Hour 0.04 ppm
(105 µg/m3)

0.14 ppm
(for certain
areas)11
–
Annual
Arithmetic
Mean
–

0.030 ppm
(for certain
areas)11
–
Lead 812,13
30-Day
Average 1.5 µg/m3
Atomic Absorption
– – –
Calendar
Quarter –

1.5 µg/m3
(for certain
areas)12
Same as
Primary
Standard
High Volume
Sampler and Atomic
Absorption Rolling
3-Month Avg – 0.15 µg/m3
Visibility
Reducing
Particles14
8 Hour See footnote 14
Beta Attenuation and
Transmittance through
Filter Tape No

Federal

Standards
Sulfates 24 Hour 25 µg/m3 Ion Chromatography
Hydrogen
Sulfide 1 Hour 0.03 ppm
(42 µg/m3)
Ultraviolet
Fluorescence
Vinyl
Chloride12 24 Hour 0.01 ppm
(26 µg/m3) Gas Chromatography

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Footnotes

1 California standards for ozone, carbon monoxide (except Lake Tahoe), sulfur dioxide (1 and 24 hour), nitrogen dioxide, suspended particulate matter – PM10, PM2.5, and visibility reducing particles, are values that are not to be exceeded. All others are not to be equaled or exceeded. California ambient air quality standards are listed in the Table of Standards in Section 70200 of Title 17 of the California Code of Regulations.

2 National standards (other than ozone, particulate matter, and those based on annual averages or annual arithmetic mean) are not to be exceeded more than once a year. The ozone standard is attained when the fourth highest eight-hour concentration in a year, averaged over three years, is equal to or less than the standard. For PM10, the 24 -hour standard is attained when the expected number of days per calendar year, with a 24-hour average concentration above 150 μg/m3, is equal to or less than one.

For PM2.5, the 24-hour standard is attained when 98 percent of the daily concentrations, averaged over 3 years, are equal to or less than the standard. Contact U.S. EPA for further clarification and current federal policies.

3 Concentration expressed first in units in which it was promulgated. Equivalent units given in parentheses are based upon a reference temperature of 25̊C and a reference pressure of 760 torr. Most measurements of air quality are to be corrected to a reference temperature of 25̊C and a reference pressure of 760 torr; ppm in this table refers to ppm by volume, or micromoles of pollutant per mole of gas.

4 Any equivalent procedure which can be shown to the satisfaction of the ARB to give equivalent results at or near the level of the air quality standard may be used.

5 National Primary Standards: The levels of air quality necessary, with an adequate margin of safety to protect the public health.

6 National Secondary Standards: The levels of air quality ne cessary to protect the public welfare from any known or anticipated adverse effects of a pollutant.

7 Reference method as described by the EPA. An “equivalent method” of measurement may be used but must have a “consistent relationship to the reference method” and must be approved by the EPA.

8 On October 1, 2015, the national 8-hour ozone primary and secondary standards were lowered from 0.075 to 0.070 ppm.

9 On December 14, 2012, the national PM2.5 primary standard was lowered from 15 μg/m3 to 12.0 μg/m3. The existing national 24-hour PM2.5 standards (primarily and secondary) were retained at 35 μg/m3, as was the annual secondary standard of 15 μg/m3. The existing 24-hour PM10 standards (primarily and secondary) of 150 μg/m3 also were retained. The form of the annual primary and secondary standards is the annual mean, averaged over 3 years.

10 To attain the 1 -hour national standard, the 3 -year average of the annual 98th percentile of the 1 -hour daily maximum concentrations at each site must not exceed 100 ppb. Note that the national 1-hour standard is in units of parts per billion (ppb).

California standards are in units of parts per million (ppm). To directly compare the national 1 -hour standard to the California standards the units can be converted from ppb to ppm. In this case, the national standard of 100 ppb is identical to 0.100 ppm.

11 On June 2, 2010, a new 1 -hour SO2 standard was established and the existing 24 -hour and annual primary standards were revoked. To attain the 1-hour national standard, the 3-year average of the annual 99th percentile of the 1 -hour daily maximum concentrations at each site must not exceed 75 ppb. The 1971 SO2 national standards (24 -hour and annual) remain in effect until one year after an area is designated for the 2010 standard, except that in areas designated nonattainment for the 1971 standards, the 1971 standards remain in effect until implementation plans to attain or maintain the 2010 standards are approved.

Note that the 1-hour national standard is in u nits of parts per billion (ppb). California standards are in units of parts per million (ppm). To directly compare the 1 -hour national standard to the California standard the units can be converted to ppm. In this case, the national standard of 75 ppb is identical to 0.075 ppm.

12 The ARB has identified lead and vinyl chloride as 'toxic air contaminants' with no threshold level of exposure for adverse health effects determined. These actions allow for the implementation of control measures at levels below the ambient concentrations specified for these pollutants.

13 The national standard for lead was revised on October 15, 2008 to a rolling 3-month average. The 1978 lead standard (1.5 j.tg/m3 as a quarterly average) remains in effect until one year after an area is designated for the 2008 standard, except that in ar eas designated nonattainment for the 1978 standard, the 1978 standard remains in effect until implementation plans to attain or maintain the 2008 standard are approved.

14 In 1989, the ARB converted both the general statewide 10-mile visibility standard and the Lake Tahoe 30-mile visibility standard to instrumental equivalents, which are "extinction of 0.23 per kilometer" and "extin ction of 0.07 per kilometer" for the statewide and Lake Tahoe Air Basin standards, respectively.

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Table III-2

HEALTH EFFECTS OF MAJOR CRITERIA POLLUTANTS

Pollutants Sources Primary Effects
Carbon Monoxide
(CO)
• Incomplete combustion of fuels and
other carbon-containing substances,
such as motor exhaust.
• Natural events, such as decomposition
of organic matter.
• Reduced tolerance for exercise.
• Impairment of mental function.
• Impairment of fetal development.
• Death at high levels of exposure.
• Aggravation of some heart diseases (angina).

Nitrogen Dioxide
(NO2)
• Motor vehicle exhaust.
• High temperature stationary
combustion.
• Atmospheric reactions.
• Aggravation of respiratory illness.
• Reduced visibility.
• Reduced plant growth.
• Formation of acid rain.

Ozone
(O3)
• Atmospheric reaction of organic gases
with nitrogen oxides in sunlight.
• Aggravation of respiratory and cardiovascular
diseases.
• Irritation of eyes.
• Impairment of cardiopulmonary function.
• Plant leaf injury.

Lead (Pb) • Contaminated soil. • Impairment of blood function and nerve construction.
• Behavioral and hearing problems in children.

Fine Particulate
Matter
(PM-10)
• Stationary combustion of solid fuels.
• Construction activities.
• Industrial processes.
• Atmospheric chemical reactions.
• Reduced lung function.
• Aggravation of the effects of gaseous
pollutants.
• Aggravation of respiratory and cardio
respiratory diseases.
• Increased cough and chest discomfort.
• Soiling.
• Reduced visibility.

Fine Particulate
Matter
(PM-2.5)
• Fuel combustion in motor vehicles,
equipment, and industrial sources.
• Residential and agricultural burning.
• Industrial processes.
• Also, formed from photochemical
reactions of other pollutants, including
NOx, sulfur oxides, and organics.
• Increases respiratory disease.
• Lung damage.
• Cancer and premature death.
• Reduces visibility and results in surface
soiling.

Sulfur Dioxide
(SO2)
• Combustion of sulfur-containing fossil
fuels.
• Smelting of sulfur-bearing metal ores.
• Industrial processes.
• Aggravation of respiratory diseases (asthma,
emphysema).
• Reduced lung function.
• Irritation of eyes.
• Reduced visibility.
• Plant injury.
• Deterioration of metals, textiles, leather,
finishes, coatings, etc.

Source: California Air Resources Board, 2002.

Baseline Air Quality

Existing and probable future levels of air quality around the proposed project area can best be inferred from ambient air quality measurements conducted by the SCAQMD at the Upland monitoring station. This station measures both regional pollution levels such as smog, as well as primary vehicular pollution levels

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near busy roadways such as carbon monoxide, PM-10 and nitrogen oxides. The Ontario monitoring station near Route 60 monitors PM-2.5. Table 3 provides a 4 -year summary of the monitoring d ata for the major air pollutants compiled from these air monitoring stations. From these data the following conclusions can be drawn:

1. Photochemical smog (ozone) levels frequently exceed standards. The 1 -hour state standard was violated an average of 1 4 percent of all days in the last four years near Upland. The federal 8 -hour standard has been exceeded an average of 17 percent of all days within the same period and the state 8-hour standard has been exceeded approximately 21 percent of all days. While ozone levels are still high, they are much lower than 10 to 20 years ago. Attainment of all clean air standards in the project vicinity is not likely to occur soon, but the severity and frequency of violations is expected to continue to slowly decline during the current decade.

2. PM-10 levels have exceeded the state 24 -hour standard on approximately five percent of all measurement days. The three times less stringent federal 24 hour -standard has not been exceeded once in the last four years.

3. A substantia l fraction of PM -10 is comprised of ultra -small diameter particulates capable of being inhaled into deep lung tissue (PM -2.5). Both the frequency of violations of particulate standards, as well as high percentage of PM -2.5, are air quality concerns in the project area. However, PM -2.5 readings have infrequently exceeded the federal 24-hour PM-2.5 ambient standard which has occurred on less than two percent of the measured days.

4. More localized pollutants such as carbon monoxide, nitrogen oxides, etc. are very low near the project site because background levels throughout western San Bernardino County never exceed allowable levels. There is substantial excess dispersive capacity to accommodate localized vehicular air pollutants such as NOx or CO without any threat of violating applicable AAQS.

Although complete attainment of every clean air standard is not yet imminent, extrapolation of the steady improvement trend suggests that such attainment could occur within the reasonably near future.

Table III-3
PROJECT AREA AIR QUALITY MONITORING SUMMARY (2015-2017) (Days Standards Were Exceeded and Maximum Observed Levels)

Pollutant/Standard 2017 2018 2019 2020
Ozone
1-Hour > 0.09 ppm (S) 66 25 31 82
8-Hour > 0.07 ppm (S) 87 52 52 114
8- Hour > 0.075 ppm (F) 72 32 34 114
Max. 1-Hour Conc. (ppm) 0.150 0.133 0.131 0.158
Max. 8-Hour Conc. (ppm) 0.127 0.111 0.107 0.123
Carbon Monoxide
1-Hour > 20. ppm (S) 0 0 0 0
8-Hour > 9. ppm (S, F) 0 0 0 0
Max 8-Hour Conc. (ppm) 1.4 1.2 1.1 1.1
Nitrogen Dioxide
1-Hour > 0.18 ppm (S) 0 0 0 0
Max. 1-Hour Conc. (ppm) 0.06 0.06 0.06 0.06
Respirable Particulates (PM-10)
24-Hour > 50 g/m3 (S) 26/320 14/322 7/306 12/305
24-Hour > 150 g/m3 (F) 0/320 0/322 0/306 0/305
Max. 24-Hr. Conc. (g/m3) 106. 73. 125. 63.

Fine Particulates (PM-2.5) 1
24-Hour > 35 g/m3 (F) 7/359 5/357 5/364 4/356
Max. 24-Hr. Conc. (g/m3) 44.800 47.9 41.3 53.1

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S=State Standard
F=Federal Standard
Source: South Coast AQMD
Upland Monitoring Station (5175),
1Ontario 1408 Francis Street (5817)

The United State Environmental Protection Agency (U.S. EPA) is responsible for setting and enforcing the National Ambient Air Quality Standards (NAAQS) for O3, CO, NOx, SO2, PM10, PM2.5, and lead. The U.S.

EPA has jurisdiction over emissions sources that are under the authority of the federal government including aircraft, locomotives, and emissions sources outside state waters (Outer Continental Shelf). The U.S. EPA also establishes emission standards for vehicles sold in states other than California. Automobiles sold in California must meet the stricter emission requirements of the California Air Resources Board (CARB).

The Federal Clean Air Act (CAA) was first enacted in 1955, and has been amended numerous times in subsequent years (1963, 1965, 1967, 1970, 1977, and 1990). The CAA establishes the federal air quality standards, the NAAQS, and specifies future dates for achieving compliance. The CA A also mandates that states submit and implement State Implementation Plans (SIPs) for local areas not meeting these standards. These plans must include pollution control measures that demonstrate how the standards will be met. Substantial reductions in emissions of ROG, NOx and CO are forecast to continue throughout the next several decades. Unless new particulate control programs are implemented, PM -10 and PM-2.5 are forecast to slightly increase.

Air pollution contributes to a wide variety of adverse health effects. The U.S. EPA has established NAAQS for six of the most common air pollutants: CO, Pb, O 3, particulate matter (PM 10 and PM2.5), NO2, and SO2 which are known as criteria pollutants. The South Coast Air Quality Management District ( SCAQMD) monitors levels of various criteria pollutants at 37 permanent monitoring stations and 5 single -pollutant source Pb air monitoring sites throughout the air district. On February 21, 2019, CARB posted the 2018 amendments to the state and national area designat ions. See Table III-4 for attainment designations for the South Coast Air Basin (SCAB).

Table III-4

ATTAINMENT STATUS OF CRITERIA POLLUTANTS IN THE SCAB

Criteria Pollutant State Designation Federal Designation O3 – 1-hour standard Nonattainment --
O3 – 8-hour standard Nonattainment Nonattainment
PM10 Nonattainment Attainment
PM2.5 Nonattainment Nonattainment
CO Attainment Unclassifiable/Attainment
NO2 Attainment Unclassifiable/Attainment
SO2 Unclassifiable/Attainment Unclassifiable/Attainment Pb2 Attainment Unclassifiable/Attainment

The project site is located within the SCAB, which is characterized by relatively poor air quality. The SCAB emissions forecasts are shown on Table III-5 below. The SCAQMD has jurisdiction over an approximately 10,743 square-mile area consisting of the four -county Basin and the Los Angeles County and Riverside County portions of what use to be referred to as the Southeast Desert Air Basin. In these areas, the SCAQMD is principally responsible for air pollution control, and works directly with the Southern California Association of Governments (SCAG), county transportation commissions, local governments, as well as

2 The Federal nonattainment designation for lead is only applicable towards the Los Angeles County portion of the SCAB.

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state and federal agencies to reduce emissions from stationary, mobile, and indirect sources to meet state and federal ambient air quality standards.

Table III-5
SOUTH COAST AIR BASIN EMISSIONS FORECASTS (emissions in tons/day)

Pollutant 2020 2025 2030
NOx 289 266 257
VOC 393 393 391
PM-10 165 170 172
PM-2.5 68 70 71
With current emissions reduction programs and adopted growth forecasts.

Source: California Air Resources Board, 2013 Almanac of Air Quality

Currently, these state and federal air quality standards are exceeded in most parts of the SCAB. In response, the SCAQMD has adopted a series of Air Quality Management Plans (AQMPs) to meet the state and federal ambient air quality standards. AQMPs are updated regularly to reduce emissions, accommodate growth, and to minimize any negative fiscal impacts of air pollution control on the economy more effectively.

In March 2017, the SCAQMD released the Final 2016 AQMP (2016 AQMP). The 2016 AQMP continues to evaluate current integrated strategies and control measures to meet the NAAQS, as well as, explore new and innovative methods to reach its goals. Some of these approaches include utilizing incentive programs, recognizing existing co -benefit programs from other sectors, and developing a strategy with fair -share reductions at the federal, stat e, and local levels. Similar to the 2012 AQMP, the 2016 AQMP incorporates scientific and technological information and planning assumptions, including the 2016 -2040 Regional Transportation Plan/Sustainable Communities Strategy (2016 -2040 RTP/SCS), a planni ng document that supports the integration of land use and transportation to help the region meet the federal Clean Air Act requirements. Criteria for determining consistency with the AQMP are defined in Chapter 12, Section 12.2 and Section 12.3 of the 1993 CEQA Handbook.

The 2016 AQMP acknowledges that motor vehicle emissions have been effectively controlled and that reductions in NOx, the continuing ozone problem pollutant, may need to come from major stationary sources (power plants, refineries, landfill flares, etc.). The current attainment deadlines for all federal non - attainment pollutants are now as follows:

8-hour ozone (70 ppb) 2032
Annual PM-2.5 (12 g/m3) 2025
8-hour ozone (75 ppb) 2024 (old standard)
1-hour ozone (120 ppb) 2023 (rescinded standard)

The key challenge is that NOx emission levels, as a critical ozone precursor pollutant, are forecast to continue to exceed the levels that would allow the above deadlines to be met. Unless additional stri ngent NOx control measures are adopted and implemented, ozone attainment goals may not be met.

Impact Thresholds

Appendix G of the California CEQA Guidelines offers the following four tests of air quality impact significance. A Project would have a potentially significant impact if it:

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a. Conflicts with or obstructs implementation of the applicable air quality plan. b. Results in a cumulatively considerable net increase of any criteria pollutants for which the Project region is non-attainment under an applicable federal or state ambient air quality standard (including releasing emissions which exceed quantitative thresholds for ozone precursors). c. Exposes sensitive receptors to substantial pollutant concentrations. d. Creates objectionable odors affecting a substantial number of people.

Primary Pollutants

Air quality impacts generally occur on two scales of motion. Near an individual source of emissions or a collection of sources such as a crowded intersection or parking lot, levels of those pollutants that are emitted in their already unhealthful form will be highest. Carbon monoxide (CO) is an example of such a pollutant.

Primary pollutant impacts can generally be evaluated directly in comparison to appropriate clean air standards. Violations of these standards where they are currently met, or a measurable worsening of an existing or future violation, would be considered a significant impact. Many particulates, especially fugitive dust emissions, are also primary pollutants. Because of the non -attainment status of the South Coast Air Basin (SCAB) for PM -10, an aggressive dust control program is required to control fugitive dust during project construction.

Secondary Pollutants

Many pollutants, however, require time to transform from a more benign fo rm to a more unhealthful contaminant. Their impact occurs regionally far from the source. Their incremental regional impact is minute on an individual basis and cannot be quantified except through complex photochemical computer models. Analysis of significance of such emissions is based upon a specified amount of emissions (pounds, tons, etc.) even though there is no way to translate those emissions directly into a corresponding ambient air quality impact.

Because of the chemical complexity of primary versus secondary pollutants, the SCAQMD has designated significant emissions levels as surrogates for evaluating regional air quality impact significance independent of chemical transformation processes. Projects with daily emissions that exceed any of the following emission thresholds are recommended by the SCAQMD to be considered significant under CEQA guidelines.

Table III-6

DAILY EMISSIONS THRESHOLDS

Pollutant Construction Operations
ROG 75 55
NOx 100 55
CO 550 550
PM-10 150 150
PM-2.5 55 55
SOx 150 150
Lead 3 3
Source: SCAQMD CEQA Air Quality Handbook, November, 1993 Rev.

Impact Analysis

a. Less Than Significant Impact ‒ Projects such as the proposed State Street Water Treatment Project do not directly relate to the AQMP in that there are no specific air quality programs or regulations governing general development. Conformity with adopted plans, forecasts and programs relative to

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population, housing, employment and land use is the primary yardstick by which impact significance of planned growth is determined. The SCAQMD, however, while acknowledging that the AQMP is a growth-accommodating document, does not favor designating regional impacts as less -than- significant just because the proposed development is consistent with regional growth projections. Air quality impact significance for the proposed project has therefore been analyzed on a project-specific basis. The project would be required to comply with the Municipal Code, and the City would ensure that it meets these standards. The State Street Water Treatment Project will be fully consistent with both the General Plan designation and Zone classification for the project site , mainly because the project involves water treatment, and such projects are considered land use independent , and because the operation of the proposed project would occur within sites already owned and operated by the City. Thus, the proposed project is consistent with regional planning forecasts maintained by the Southern California Association of Governments (SCAG) regional plans. The SCAQMD, however, while acknowledging that the AQMP is a growth -accommodating document, does not favor designating regional impacts as less -than-significant only because of consiste ncy with regional growth projections. Air quality impact significance for the proposed project has therefore been analyzed on a project -specific basis. As the analysis of project -related emissions provided below indicates, the proposed project will not cause or contribute to significant air pollution, and is, therefore, consistent with the applicable air quality plan.

b. Less Than Significant With Mitigation Incorporated ‒ Air pollution emissions associated with the proposed project would occur over bot h a short and long -term time period. Short-term emissions include fugitive dust from construct ion activities (i.e., site prep, demolition, grading, and exhaust emission) at the proposed project site. Long -term emissions generated by future operation of the proposed project primarily include energy consumption required to operate the State Street Water Treatment Plant and employee/visitor truck trips to the State Street Water Treatment Plan t and associated well sites.

The proposed project is located within a highly industrial corridor along State Street, which is just south of the railroad tracks. The project site is surrounding to the east, south, and west by existing industrial uses, bu t there is a small mobile home park to the south that takes access from Mission Boulevard.

Construction Emissions
The proposed project consists of development of a State Street Water Treatment Facility (State Street WTF), which will be a new centralized treatment project that will treat water from Wells 12 and 14.

The project also includes installation of offsite water transmission and brine pipelines, improvements to the existing wells, and site improvements.

A new 1000kVA (preliminary) pad -mounted utility transformer shall be provided by Southern California Edison (SCE) to supply sufficient power to the new distribution system. The overall project activities are described in detail in the Project Description. Construction of the project is projected to require one and a half years with the start in mid-2022.

The CalEEMod 2020.4.0 computer model was used to calculat e emissions from the prototype construction equipment fleet and schedule as indicated in Table III-7.

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Table III-7
CalEEMod CONSTRUCTION ACTIVITY EQUIPMENT FLEET AND WORKDAYS

WELLHEAD SITE
Phase Name and Duration Equipment
Demolition
(1 month)
300 CY demo export
1 Concrete Saw
1 Dozer
1 Loader/Backhoe
2 Skid Steer Loaders
Grade
(1 month)
1 Loader/Backhoe
1 Dozer
1 Excavator
1 Grader
Pave/Pour Concrete Slabs
(3 months)
1 Paver
2 Rollers
1 Loader/Backhoe
2 Mixers
1 Compactor
Construction and Equipment Install
(10 months)
1 Crane
3 Forklifts
2 Loader/Backhoes
1 Welder
1 Generator Set
Yard Piping/Drainage
(3 months)
1 Trencher
2 Forklifts
1 Crane
2 Skid Steer Loaders

OFF-SITE PIPELINE INSTALLATION
Phase Name and Duration Equipment
Prep and Concrete Removal
(1 month)
1 Concrete Saw
2 Skid Steer Loaders
2 Loader/Backhoes
Trenching and Pipeline Install
(3 months)
2 Trenchers
2 Forklifts
1 Loader/Backhoes
Backfill and Paving
(1 month)

4 Mixers
1 Paver
1 Rollers
1 Loader/Backhoes
2 Compactors

Utilizing the indicated equipment fleet shown in Tables III-7 the following worst -case daily construction emissions are calculated by CalEEMod and are listed in Table III-8.

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Table III-8

CONSTRUCTION ACTIVITY EMISSIONS

MAXIMUM DAILY EMISSIONS (POUNDS/DAY)

Maximal Construction
Emissions per Calendar
Year
ROG NOx CO SO2 PM-10 PM-2.5
On-Site
2022 1.7 17.5 16.0 0.0 3.4 2.1
2023 1.6 13.3 15.8 0.0 1.1 0.7

Off-Site
2023 1.8 15.1 20.4 0.0 2.5 1.2
SCAQMD Thresholds 75 100 550 150 150 55
Source: CalEEMod.2016.3.2 output in appendix to the Air Quality Impact Analysis (AQIA)

Peak daily construction activity emissions are below their respective SCAQMD CEQA significance thresholds without the need for any additional mitigation , even when the 2023 on -and-offsite emissions are combined.

SCAQMD Rules 402 and 403 (prohibition of nuisances, watering of inactive and perimeter areas, track out requirements, etc.), are applicable to the project and were applied in CalEEMod to minimize fugitive dust emissions. With this measure, peak daily construction activity emissions are estimated be below SCAQMD CEQA thresholds without the need for added mitigation.

AQ-1 Fugitive Dust Control . The following measures shall be incorporated into Project plans and specifications for implementation:
• Apply soil stabilizers or moisten inactive areas.
• Water exposed surfaces as needed to avoid visible dust leaving the con - struction site (typically 2-3 times/day).
• Cover all stock piles with tarps at the end of each day or as needed. • Provide water spray during loading and unloading of earthen materials. • Minimize in-out traffic from construction zone.
• Cover all trucks hauling dirt, sand, or loose material and require all trucks to maintain at least two feet of freeboard.
• Sweep streets daily if visible soil material is carried out from the construc- tion site.

This measure shall be implemented during construction, and shall be included in the construction contract as a contract specification.

Similarly, ozone precursor emissions (ROG and NOx) are calculated to be below SCAQMD CEQA thresholds. However, because of the regional non -attainment for photochemical smog, the use of reasonably available control meas ures for diesel exhaust is recommended. Combustion emissions control options include:

AQ-2 Exhaust Emissions Control. The following measures shall be incorporated into Project plans and specifications for implementation:
• Utilize off -road construction equipment that has met or exceeded the maker’s recommendations for vehicle/equipment maintenance schedule . • Contactors shall utilize Tier 4 or better heavy equipment. • Enforce 5-minute idling limits for both on -road trucks and off -road equip- ment.

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With the above mitigation measures, any impacts related to construction emissions are considered less than significant. No further mitigation is required.

Operational Emissions
Electrical generation of power will be used for pumping and water treatment. Electrical consumption has no single uniquely related air pollution emissions source because power is supplied to and drawn from a regional grid. Electrical power is generated regionally by a combination of non -combustion (nuclear, hydroelectric, solar, wind, geothermal, etc.) and fossil fuel combustion sources. There is no direct nexus between consumption and the type of power source or the air basin where the source is located. Operational air pollution emissions from electrical generation are therefore not attributable on a project-specific basis.

Conclusion
With the incorporation of MMs AQ-1 and AQ-2, the development of the State Street Water Treatment Project would have a less than significant potential to result in a cumulative ly considerable net increase of any criteria pollutant for which the project region is non -attainment under an applicable federal or state ambient air quality standard.

c. Less Than Significant Impact – The SCAQMD has developed analysis parameters to eval uate ambient air quality on a local level in addition to the more regional emissions -based thresholds of significance. These analysis elements are called Localized Significance Thresholds (LSTs). LSTs were developed in response to Governing Board’s Environmental Justice Enhancement Initiative 1-4 and the LST methodology was provisionally adopted in October 2003 and formally approved by SCAQMD’s Mobile Source Committee in February 2005.

LST screening tables are available for 25, 50, 100, 200 - and 500-meter source-receptor distances.

For this project, there are possible residential in the mobile home park south of the site such that the most conservative 25-meter distance was modeled.

The SCAQMD has issued guidance on applying CalEEMod to LSTs. LST pollutant screening level concentration data is currently published for 1, 2 - and 5-acre sites for varying distances. The most stringent thresholds for a one-acre site were used for this analysis.

Only the on -site emissions resulting from construction of the treatment plant were used for this analysis since the pipeline installation is only in front of a single receptor for a very brief time.

The following thresholds and emissions in Table III-9 are determined (pounds per day):

Table III-9
LST AND PROJECT EMISSIONS (pounds/day)

LST 1 acre/25 meters
Southwest San Bernardino Valley CO NOx PM-10 PM-2.5
LST Threshold 863 118 5 4
Max On-Site Emissions
2022 16 18 3 2
2023 16 13 1 1

LSTs were compared to the maximum daily construction activities. As seen in Table III-9, even without use of mitigation, emissions easily meet the LST for construction thresholds. LST impacts are less than significant.

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Additionally, construction equipmen t exhaust contains carcinogenic compounds within the diesel exhaust particulates. The toxicity of diesel exhaust is evaluated relative to a 24 -hour per day, 365 days per year, 70-year lifetime exposure. The SCAQMD does not generally require the analysis of construction-related diesel emissions relative to health risk due to the short period for which the majority of diesel exhaust would occur. Health risk analyses are typically assessed over a 9 -, 30-, or 70-year timeframe and not over a relatively brief c onstruction period due to the lack of health risk associated with such a brief exposure. As such, the proposed project would have a less than significant potential to expose sensitive receptors to substantial pollutant concentrations.

d. Less Than Significant Impact ‒ Project operations (pumping and treatment, and distribution) are an essentially closed system with negligible odor potential. Groundwater contains minimal organic matter capable of odor generation. Chlorine storage and dispensing is prevented from being released to the atmosphere by a required containment system.

The site uses low concentrations of chlorine for water disinfection, but it will be injected into the water stream and have no airborne pathways. The solution will be stored in tanks and the solution will be pumped to the inline mixer. The dosing is controlled by a metering pump installed close to the storage tank. The quality of the disinfected water coming out of the online mixer will be analyzed by a Chlorine Analyzer. Chemical levels will be diluted to below their odor threshold. Therefore, the potential for objectionable odors posing a health risk to humans on- or off-site is considered a less than significant impact.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

IV. BIOLOGICAL RESOURCES: Would the project:

a) Have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or U.S.

Fish and Wildlife Service?

b) Have a substantial adverse effect on any riparian
habitat or other sensitive natural community identified in local or regional plans, policies, regulations or by the California Department of Fish and Wildlife or U.S. Fish and Wildlife Service?

c) Have a substantial adverse effect on state or
federally protected wetlands (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct
removal, filling, hydrological interruption, or other
means?

d) Interfere substantially with the movement of any
native resident or migratory fish or wildlife species or with established native resident or migratory wildlife
corridors, or impede the use of native wildlife nursery sites?

e) Conflict with any local policies or ordinances
protecting biological resources, such as a tree
preservation policy or ordinance?

f) Conflict with the provisions of an adopted Habitat
Conservation Plan, Natural Community Conservation
Plan, or other approved local, regional, or state habitat conservation plan?

SUBSTANTIATION: The following information utilized in this Section of the Initial Study was obtained from a Biological Resources Report (BRR) prepared by ELMT Consulting titled “Biological Resources Report for the City of Chino State Street Water Treatment Project in San Bernardino County, California ,” dated February 2, 2022, which is provided as Appendix 3 to this document.

Site Survey Results

The overall project site is relatively flat with no areas of significant topographic relief, ranges in elevation from 881 to 963 feet above mean sea level, and slopes marginally from north to south. Based on the NRCS USDA Web Soil Survey, the project site is underlain by Tujunga loamy sand (0 to 5 percent slopes) an d Hanford sandy loam (0 to 2 percent slopes). Soils on -site have been mechanically disturbed and heavily compacted from historic land uses (i.e., historic agricultural activities, grading, and existing development).

Historic aerials indicate that these disturbances have been ongoing since at least 1938.

Vegetation
The site supports two (2) land cover types that would be classified as disturbed and developed. The existing facilities support heavily disturbed areas that no longer comprise a plant community. These disturbed areas are typically unvegetated except for po ckets of ornamental landscaping and compacted gravel lots that support some weedy/early successional plant species. Plant species observed during the field investigation

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include creeping fig (Ficus pumila), American sycamore (Platanus occidentalis), tree of heaven (Ailanthus altissima), ornamental pine ( Pinus sp.), magnolia tree ( Magnolia sp.), Mexican fan palm ( Washingtonia robusta), goosefoot ( Chenopodium sp.), tumbleweed ( Amaranthus albus ), ragweed ( Ambrosia psilostachya), Mediterranean mustard (Hirschfeldia incana), Russian thistle (Salsola tragus), cheeseweed (Malva parviflora), and non-native grasses (Bromus spp., Digitaria sanguinalis, and Cynodon dactylon).

The proposed pipeline alignments will extend along previously developed road right -of-way.

Special-Status Plants
According to the California Natural Diversity Database ( CNDDB) and California Native Plant Survey (CNPS), seventeen (17) special -status plant species have been recorded in the Ontario quadrangle. No special-status plant species were observed on -site during the field investigation. The project site consists of heavily disturbed and developed land with associated ornamental vegetation that has been subject to a variety of anthropogenic disturbances that is surrounded almost entirely by existing development. These disturbances have eliminated the natural plant communities that once occurred on-site which has removed ability of the habitat on the project site to provide suitable habitat for special -status plant species known to occur in the general vicinity. Based on habitat requirements for specific special -status plant species and the availability and quality of habitats needed by each species, it was determined that the project site does not provide suitable habitat for any of the special-status plant species known to occur in the area and all are presumed to be absent. No focused surveys are recommended.

Special-Status Wildlife
According to the CNDDB, forty (40) special -status wildlife species have been reported in the Ont ario quadrangle (refer to Attachment D of Appendix 3). No special-status wildlife species were observed on-site during the habitat assessment. The project site consists of heavily disturbed and developed land. These disturbances have eliminated the natural plant communities that once occurred on -site which has greatly reduced suitability for wildlife species , including that the biologist concluded that there is no potential to support burrowing owl (Athene cunicularia) on the project site . Based on habitat requirements for specific species and the availability and quality of on-site habitats, it was determined that the proposed project site has a moderate potential to provide suitable habitat for Cooper’s hawk ( Accipiter cooperii). It was further determined that the project site does not have the potential to support any of the other special-status wildlife species known to occur in the area since the site has been heavily impacted by on -site disturbances and surrounding development.

Cooper’s hawk is not fe derally or state listed as endangered or threatened. In order to ensure impacts to the Cooper’s hawk do not occur from implementation of the proposed project, a pre -construction nesting bird clearance survey shall be conducted prior to ground disturbance. With implementation of the pre - construction nesting bird clearance survey, impacts to the aforementioned species will be less than significant and no mitigation will be required.

Special-Status Plant Communities
According to the CNDDB, one (1) special -status plant communities have been reported in the Ontario USGS 7.5 -minute quadrangle: Riversidean Alluvial Fan Sage Scrub. Based on the results of the field investigation, no special-status plant communities were observed onsite. Therefore, no special-status plant communities will be impacted by project implementation.

Critical Habitat
The project site is not located within federally designated Critical Habitat. The nearest Critical Habitat designation is located approximately 5.9 miles northwest of the si te for coastal California gnatcatcher (Polioptila californica californica ). Therefore, no impacts to federally designated Critical Habitat will occur from implementation of the proposed project.

Jurisdictional Areas
There are three key agencies that regulate activities within inland streams, wetlands, and riparian areas in California. The Corps Regulatory Branch regulates discharge of dredge or fill materials into “waters of the

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United States” pursuant to Section 404 of the Clean Water Act (CWA) and Secti on 10 of the Rivers and Harbors Act. Of the State agencies, the California Department of Fish and Wildlife (CDFW) regulates alterations to streambed and bank under Fish and Wildlife Code Sections 1600 et seq., and the Regional Board regulates discharges in to surface waters pursuant to Section 401 of the CWA and the California Porter-Cologne Water Quality Control Act.

The project site does not support any discernible drainage courses, inundated areas, wetland features, or hydric soils that would be considered jurisdictional by the Corps, Regional Board, or CDFW. A query of the National Wetland Inventory (NWI) database found no potential blueline streams, riverine, or other aquatic resources within or adjacent to the project site. Therefore, project activities will not result in impacts to Corps, Regional Board, or CDFW jurisdictional areas and regulatory approvals will n ot be required.

Conclusion

Based literature review and field survey, and existing site conditions discussed in this report, implementation of the project will have no significant impacts on federally or State listed species known to occur in the general vicinity of the project site. Additionally, the project will have no effect on designated Critical Habitat, since there is no federal nexus, or regional wildlife corridors/linkage because none exists within the area. No jurisdictional drainage and/or wetland features were observed on the project site during the field investigation. No further surveys are recommended. With completion of the recommendations provided below, no impacts to year -round, seasonal, or special -status avian residents or special -status species will occur from implementation of the proposed project.

Impact Analysis

a. Less Than Significant With Mitigation Incorporated – Implementation of the proposed project is not anticipated to have a potential for an adverse effect, either directly or through habitat modifications, on species identified as a candidate, sensitive, or special species in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife (CDFW) or U.S. Fish and Wildlife Service (USFWS). As stated above, n o sensitive species were observed within the project area during the reconnaissance -level field survey and due to the environmental conditions on site, none are expected to occur. The site supports two (2) land cover types that would be classified as disturbed and developed. The existing facilities support heavily disturbed areas that no longer comprise a plant community. However, based on habitat requirements for specific species and the availability and quality of on -site habitats, the proposed project site has a moderate potential to provide suitable habitat for Cooper’s hawk (Accipiter cooperii). It was further determined that the project site does not have the potential to support any of the other special -status wildlife species known to occur in the area—including burrowing owl (Athene cunicularia)—since the site has been heavily impacted by on- site disturbances and s urrounding development. Cooper’s hawk is not federally or state listed as endangered or threatened. In order to ensure impacts to the Cooper’s hawk do not occur from implementation of the proposed project, a pre -construction nesting bird clearance survey s hall be conducted prior to ground disturbance. To avoid impacting nesting birds , including Cooper’s hawk, as required by the Migratory Bird Treaty Act (MBTA) and California Fish and Game Code (FGC), the following mitigation measure shall be implemented:

BIO-1 Nesting bird surveys shall be conducted by a qualified avian biologist no more than three (3) days prior to vegetation clearing or ground disturbance activities. Preconstruction surveys shall focus on both direct and indirect evidence of nesting, incl uding nest locations and nesting behavior. The qualified avian biologist will make every effort to avoid potential nest predation as a result of survey and monitoring efforts. If active nests are found during the preconstruction nesting bird surveys, a Nes ting Bird Plan (NBP) shall be prepared and implemented by the qualified avian biologist. At a minimum, the NBP shall include guidelines for addressing active nests, establishing buffers, ongoing monitoring, establishment of avoidance and minimization measu res,

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and reporting. The size and location of all buffer zones, if required, shall be based on the nesting species, individual/pair’s behavior, nesting stage, nest location, its sensitivity to disturbance, and intensity and duration of the disturbance activ ity. To avoid impacts to nesting birds, any grubbing or vegetation removal should occur outside peak breeding season (typically February 1 through September 1).

Thus, with implementation of the above measure, the proposed project would h ave a less than significant potential to result in a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Wildlife or U.S.

Fish and Wildlife Service.

b. Less Than Significant Impact – Implementation of the proposed project has minimal potential to have an adverse effect on any riparian habitat or sensitive natural community identified in local or regional plans, policies, regulations, or by the CDFW or USFWS. As stated in the BR R provided as Appendix 3, the project area does not contain any sensitive habitats, including any USFWS designated Critical Habitat for any federally listed species, and the Project will not result in any loss or adverse modification of Critical Habitat. The nearest Critical Habitat designation is located approximately 5.9 miles northwest of the site for coastal California gnatcatcher ( Polioptila californica californica). Furthermore, no intermittent or ephemeral dry washes that would meet the definitions of State and federal jurisdictional waters as defined by Section 1600 of the State of California FGC or “Waters of the United States” (WoUS) as defined by Section 404 of the Clean Water Act (CWA) occur on the project site. Therefore, no regulatory permits from these agencies will be required for this project. Based on the field survey conducted by ELMT Consulting and the information contai ned in Appendix 3, no significant impacts to riparian habitat or other sensitive communities are anticipated to occur as a result of implementation of the proposed project.

c. No Impact – According to the data gathered by ELMT Consulting in Appendix 3, the project site does not support any discernible drainage courses, inundated areas, wetland features, or hydric soils that would be considered jurisdictional by the Corps, Regional Board, or CDFW. A query of the NWI database found no potential blueline streams, riverine, or other aquatic resources within or adjacent to the project site. Therefore, project activities will not result in impacts to Corps, Regional Board, or CDFW jurisdictional a reas and regulatory approvals will not be required. Implementation of the proposed project will have no potential to impact state or federally protected wetlands (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, fil ling, hydrological interruption, or other means. No mitigation is required.

d. Less Than Significant With Mitigation Incorporated – Based on the field survey of the project site, the project will not substantially interfere with the movement of any nati ve resident or migratory species or with established native or migratory wildlife corridors, or impede the use of native nursery sites.

Habitat linkages provide connections between larger habitat areas that are separated by development. Wildlife corridors are similar to linkages but provide specific opportunities for animals to disperse or migrate between areas. A corridor can be defined as a linear landscape feature of sufficient width to allow animal movement between two comparatively undisturbed habitat fragments.

Adequate cover is essential for a corridor to function as a wildlife movement area. It is possible for a habitat corridor to be adequate for one species yet still inadequate for others. Wildlife corridors are features that allow for the dispersal, seasonal migration, breeding, and foraging of a variety of wildlife species. Additionally, open space can provide a buffer against both anthropogenic disturbance and natural fluctuations in resources.

According to the San Bernardino County General Pla n, the project site has not been identified as occurring within a Wildlife Corridor or Linkage. As designated by the San Bernardino County General Plan Open Space Element, the nearest major open space area documented in the vicinity of the

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project site is the Chino Dairy Preserve, located approximately 2.81 miles to the southeast, which is separated from the project by existing developments.

The proposed project will be confined to existing areas that have been heavily disturbed and/or developed that are i solated from regional wildlife corridors and linkages. In addition, there are no riparian corridors, creeks, or useful patches of steppingstone habitat (natural areas) within or connecting the site to a recognized wildlife corridor or linkage. As such, imp lementation of the proposed project is not expected to impact wildlife movement opportunities. Therefore, impacts to wildlife corridors or linkages are not expected to occur.

However, the State does protect all migratory and nesting native birds. Further, the project site and surrounding area consists of habitat that is suitable to support nesting birds, including Cooper’s hawk.

The site was determined to not contain habitat that could support burrowing owl (Athene cunicularia).

Thus, the project area may include areas that function as nesting locations for native birds. To avoid impacting nesting birds as required by the MBTA and California FGC MM BIO-1, shall be implemented. Thus, with implementation of MM BIO-1, any effects on wildlife movement or the use of wildlife nursery sites can be reduced to a less than significant impact.

e. Less Than Significant Impact – Development of the proposed project would have a less than significant potential to conflict with any local policie s or ordinances protecting biological resources.

Impacts to biological resources have been addressed above under issues IV(a-d). Due to the nature of the proposed project —installing pipelines belowground within mostly within existing roadways , rehabilitating wells and installing a water treatment plant —no trees or other biological resources that might be protected exist within the project footprint. Therefore, the potential for the project to conflict with local policies or ordinances pertaining to biologi cal resources would be considered less than significant.

f. Less Than Significant Impact – Development of the proposed project would have a less than significant potential to conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan , as none pertain to the project area . Impacts to biological resources have been addressed above under issues IV(a -d). Due to the nature of the proposed project —installing pipelines belowground within mostly within existing roadways, rehabilitating wells and installing a water treatment plant—no other biological resources that might be protected exist within the project footprint . Therefore, the potential for the project to conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan, as none pertain to the project area would be considered less than significant.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

V. CULTURAL RESOURCES: Would the project:

a) Cause a substantial adverse change in the
significance of a historical resource pursuant to
§15064.5?

b) Cause a substantial adverse change in the
significance of an archaeological resource pursuant to
§15064.5?

c) Disturb any human remains, including those interred
outside of formal cemeteries?

SUBSTANTIATION: A cultural resources report has been prepared to evaluate the potential for cultural resources to occur within the project area of potential effect entitled “Identification and Evaluation of Historic Properties State Street Water Treatment Plant Project , In and near the City of Chino, San Bernardino County, California ,” prepared by CRM TECH February 21, 2022 (Appendix 4). The following summary information has been abstracted from this report. It provides an overview and findings regarding the cultural resources found within the project area.

Background
The purpose of the study is to provide the City of Chino and the U.S. Bureau of Reclamation (BOR) with the necessary information and analysis to determine whether the proposed undertaking would have an effect on any “historic properties” or “historical resources,” as defined by the pertinent federal and state statutes and regulations, that may exist in or near the area of potential effect (APE). The study was designed to comply with both CEQA and Section 106 of the National Historic Preservation Act (NHPA). Furthermore, the study was utilized in the AB 52 consultation process to communicate the potential resources within the project site to area Tribes. In order to accomplish this objective, CRM TECH performed a cultural resources records search, pursued historical and geoarchaeological background research, contacted Native American representatives, and carried out a systematic field survey.

Throughout the course of the study, no potential “historic properties”/“historical resources” were encountered within the APE, and th e subsurface sediments in the vertical extent of the APE appear to be relatively low in sensitivity for buried deposits of po tentially significant archaeological remains from the prehistoric era. Although evidence of development was noted at both well sites in the early 20th century, no physical remains of the early features were observed within or adjacent to the APE during the field survey. Along the pipeline alignment, all of the existing roadw ays trace their origin to the historic period, but as working components of the modern urban infrastructure they do not demonstrate any distinctively historical characteristics and are therefore not considered potential “historic properties” /“historical resources.”

Based on these findings, and pursuant to 36 CFR 800.4(d)(1) and Calif. PRC §21084.1, CRM TECH recommends to the City of Chino and the BOR a conclusion that no “historic properties” or “historical resources” will be affected by the proposed un dertaking. No further cultural resources investigation is recommended for the undertaking unless project plans undergo such changes as to include areas not covered by this study. However, if buried cultural materials are encountered during earth -moving operations associated with the undertaking, all work in that area should be halted or diverted until a qualified archaeologist can evaluate the nature and significance of the finds.

Impact Analysis

a&b. Less Than Significant With Mitigation Incorporated – CEQA establishes that "a project that may cause a substantial adverse change in the significance of a historical resource is a project that may have a

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significant effect on the environment" (PRC §21084.1). "Substantial adverse change," according to PRC §5020.1(q), "means demolition, destruction, relocation, or alteration such that the significance of a historical resource would be impaired."

Per the above discussion and definition, no archaeological sites or isolates were recorded within the Project boundaries; thus, none of them requires further consideration during this study. In light of this information and pursuant to PRC §21084.1, the following conclusions have been reached for the Project:

• No historical resources within or adjacent to the project area have any potential to be disturbed as they are not within the proposed area in which the facilities will be constructed and developed, and thus, the project as it is currently proposed will not cause a substantial adverse change to any known historical resources.
• No further cultural resources investigation is necessary for the proposed project unless construction plans undergo such changes as to include areas not covered by this study.

However, if buried cultural materials are accidentally discovered during any earth-moving operations associated with the Project, the following mitigation measure shall be implemented:

CUL-1 Should any cult ural resources be encountered during construction of these facilities, earthmoving or grading activities in the immediate area of the finds shall be halted and an onsite inspection shall be performed immediately by a qualified archaeologist. Responsibility for making this determination shall be with the City. The archaeological professional shall assess the find, determine its signifi cance, and make recommendations for appro priate mitigation measures within the guidelines of the California Environmental Quality Act.

With the above mitigation incorporation, as well as the mitigation identified under Tribal Cultural Resources below, the potential for impacts to cultural resources will be reduced to a less than significant level. No additional mitigation is required.

c. Less Than Significant With Mitigation Incorporated – As noted in the discussion above, no available information suggests that human remains may occur within the APE and the potential for such an occurrence is considered very low. State law (Section 7050.5 of the Health and Safety Code) as well as local laws requires that the Police Department, Coun ty Sheriff and Coroner’s Office receive notification if human remains are encountered. However, the following mitigation measure shall be implemented to ensure that construction related activities protect such findings:

CUL-2 Should human remains or funerary objects be encountered during any activities associated with the project, work in the immediate vicinity (within a 100-foot buffer of the find) shall cease and the County Coroner shall be contacted pursuant to State Health and Sa fety Code §7050.5 and that code enforced for the duration of the project.

Additionally, during the AB 52 process, the Gabrieleño Band of Mission Indians – Kizh Nation, requested that mitigation measure s addressing discovery of human remains and procedures for burials and funerary remains be implemented as part of this project should human remains or funerary remains be discovered during construction of the proposed project. Th ese measures shall be enforced through MM s TCR-2 and TCR-3, which are discussed u nder Subsection XVIII, Tribal Cultural Resources, below. With the implementation of the above mitigation measure s, any impacts under this issue are considered less than significant.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

VI. ENERGY: Would the project:

a) Result in a potentially significant environmental
impact due to wasteful, inefficient, or unnecessary
consumption of energy resources, during project
construction or operations?

b) Conflict with or obstruct a state or local plan for
renewable energy or energy efficiency?

SUBSTANTIATION

a. Less Than Significant With Mitigation Incorporated – The proposed project would install pretreatment at each wellhead, a GAC water treatment system, an IX water treatment system, an 8,500-gallon brine waste storage tank, a 2,500 -gallon softener waste storage tank, and up to about 22,480 LF of water transmission, brine, softener waste, and sewer waste pipeline . Energy consumption encompasses many different activities. For example, construction can include the following activities:
delivery of equipment and material to a site from some location (note it also requires energy to manufacture the equipment and material, such as harvesting, cutting and delivering wood from its source); employee trips to work, possibly offsite for lunch (or a visit by a catering truck), travel home, and occasionally leaving a site for an appointment or checking another job; use of equipment onsite (electric or fuel); and sometimes demolition and disposal of co nstruction waste. For the proposed project the number of construction workers will be limited due to the small size of the project and site.

Demolition, beyond the removal of small sections of concrete and asphalt to install the connecting pipeline, is not anticipated to be required for this project. To minimize energy costs of construction debris management, laws are in place that require diversion of all material subject to recycling.

Energy consumption by equipment will be reduced by requiring shutdowns when equipment is not in use after five minutes and ensuring equipment is being operated within proper operating parameters (tune-ups) to minimize emissions and fuel consumption. These requirements are consistent with State and regional rules and regu lations. Under the construction scenario outlined in the project description, the proposed project will not result in wasteful, inefficient, or unnecessary energy consumption during construction.

Please refer to the Project Description above and to Appendix 1 to this document for specific details regarding the energy requirements for the proposed State Street Water Treatment Plant Project operations. The State Street Facility and the Well 12 Facility are connected to Southern California Edison (SCE) service. At both the State Street Facility and the Well 12 Facility, the primary service is routed underground from a utility pole near the site entrance to a pad mounted utility transformer, which steps the voltage down to 480/277VAC, 3-phase.

In order to meet the new pumping rate after the completion of well rehabilitation at the State Street Facility, the new well pump will need to be upgraded. A new electrical distribution system shall be installed to support the larger well pump motor, and other new loads from the treatment plant. Since the existing well pump is to be removed and replaced, the existing power distribution system at the facility shall be demolished and upgraded to accommodate the added demand. The main switchboard shall also include an open transition manual transfer switch (MTS) to allow for a portable generator to be connected to provide backup power in an event of power outage. A new 1000kVA (preliminary) pad-mounted utility transformer shall be provided by Southern California Edison (SCE) to supply sufficient power to the new distribution system. Transformer size shall be coordinated and finalized with SCE during final design. SCE has indicated that it has available capacity to supply the project with the installation of the new transformer.

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Similar to the Well 14 pump, the well pump at the existing Well 12 facility is also planned to be replaced and upsized. The existing power distribution system shall be demolished and upgraded to accommodate the larger well pump motor.

At both sites, additional lighting will be provided for illumination throughout the facility interior and exterior. Additional lights will be installed at strategically located areas around the site to provide sufficient lighting for security and safety. All fixtures will be specified as LED technology for extended life and energy efficiency. Exterior light fixtures will be equipped with photocells for dusk to dawn operation.

As stated in Section III, Air Quality, the construction of the proposed State Street Water Treatment Project would require mitigatio n to minimize emissions impacts from construction equipment use.

This mitigation measure also appl ies to energy resources as it requires equipment not in use for 5 minutes to be turned off, and for electrical construction equipment to be used where available. This measure (MM AQ-2) would prevent a significant impact during construction due to wasteful, inefficient, or unnecessary consumption of energy resources , and would also conform to the CARB regulations regarding energy efficiency. The proposed water treatment project must be constructed in conformance with a variety of existing energy efficiency regulatory requirements or guidelines including, but not limited to the following:

• Compliance California Green Building Standards Code, AKA the CALGreen Code (Title 24, Part 11), which became effective on January 1, 2017. The purpose of the CALG reen Code is to improve public health, safety, and general welfare by enhancing the design and construction of building through the use of building concepts encouraging sustainable construction practices. • Compliance with the Building Energy Efficiency Standards (CBSC) would ensure that the building energy use associated with the proposed project would not be wasteful or unnecessary. • Compliance with diversion of construction and demolition materials from landfills. • Compliance with AQMD Mandatory use of low-pollutant emitting finish materials. • Compliance with AQMD Rules 431.1 and 431.2 to reduce the release of undesirable emissions. • Compliance w ith diesel exhaust emissions from diesel vehicles and off -road diesel vehicle/equipment operations.
• Compliance with these regulatory requirements for o perational energy use and construction energy use would not be wasteful or unnecessary use of energy.

Further, Southern California Edison (SCE) is presently in compliance with State renewable energy supply requirements and SCE will supply electricity to the project. The proposed project does not include any substantive new stationary or mobile sources of emissions, and therefore, by its very nature, will not generate substantive amounts of energy demand from project operations. The project does not propose a trip-generating land use or facilities that would generate any substantive amount of on -going energy demands. While it is anticipated that the project would require intermittent maintenance, such maintenance would be minimal requiring a negligible amount of traffic trips on an annual basis. As such, under the operational scenario for the proposed project, the proposed project will not result in wasteful, inefficient, or unnecessary energy consumption that could result in a significant adverse impact to energy issues based on compliance with the referenced laws, regulations and guidelines. Impacts under this issue are considered less than significant with the implementation of MM AQ-2, as identified above.

b. Less Than Significant Impact – Based on the analysis in the preceding discussion, the proposed project will not conflict with current State energy efficiency or electricity supply requirements or any local plans or programs for renewable energy or energy efficiency requirements. No mitigation is required.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

VII. GEOLOGY AND SOILS: Would the project:

a) Directly or indirectly cause potential substantial
adverse effects, including the risk of loss, injury, or death involving:

(i) Rupture of a known earthquake fault, as
delineated on the most recent Alquist-Priolo
Earthquake Fault Zoning Map issued by the State
Geologist for the area or based on other
substantial evidence of a known fault? Refer to
Division of Mines and Geology Special
Publication 42.

(ii) Strong seismic ground shaking?

(iii) Seismic related ground failure, including
liquefaction?

(iv) Landslides?

b) Result in substantial soil erosion or the loss of
topsoil?

c) Be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the
project, and potentially result in onsite or offsite land- slide, lateral spreading, subsidence, liquefaction or
collapse?

d) Be located on expansive soil, as defined in Table
18-1-B of the Uniform Building Code (1994), creating
substantial direct or indirect risks to life or property?

e) Have soils incapable of adequately supporting the
use of septic tanks or alternative wastewater disposal
systems where sewers are not available for the
disposal of wastewater?

f) Directly or indirectly destroy a unique
paleontological resource or site or unique geologic
feature?

SUBSTANTIATION

a. Ground Rupture

Less Than Significant Impact – According to the San Bernardino Countywide Plan Earthquake Fault Zone Map of the project area (Figure VII -1) the proposed project is not located within an Alquist - Priolo Fault Zone. The proposed project is located south of the San Gabriel Mountains, where the most active faults are located, and is located north of the Chino Fault zone to the south. Additionally, the San Andreas Fault is located approximately 8 miles north of the proposed project footprint. There is a potential for the proposed project facilities to be subject to relatively strong ground motions.

However, based on this information, the risk for ground rupture at the site location is low; therefore, it is not likely that employees servicing either the State Street Facility site or the Well 12 site would be subject to seismic hazards from rupture of a known earthquake fault. Furthermore, the project

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would be constructed to meet current California Building Code, which includes seismic safety standards. Therefore, any impacts under this issue are considered less than significant; no mitigation is required.

Strong Seismic Ground Shaking

Less Than Significant Impact – As stated in the discussion above, several faults run through the southern California region in which the proposed project is located. The San Bernardino Countywide Plan Earthquake Fault Zone Map of the project area (Figure VII-1) shows the surrounding faults which include the Chino Fault, the Sierra Madre Fault, the San Jacinto Fault, the Cucamonga Fault, and the San Andreas Fault. Like all other development projects in the City and throughout the Southern California Region, the proposed project will be required to comply with all applicable seismic design standards contained in the current California Building Code (CBC), including Section 1613 Earthquake Loads. Compliance with the CBC will ensure that structural integrity will be maintained in the event of an earthquake. Additionally, underground pipelines are not typically susceptible to severe damage from ground shaking. Many such facilities exist and function within areas susceptible to strong ground shaking effects. Therefore, there is a less than s ignificant potential for people or structures to be exposed to strong seismic ground shaking. No mitigation is required.

Seismic-related Ground Failure Including Liquefaction

No Impact – The Well 12 and State Street Facility sites are entirely developed and contain an existing well; the pipeline alignments will occur within existing roadways or within the existing Well 12 and State Street Facility sites. The San Bernardino County Liquefaction and Landslide Map, provided as Figure VI I-2, depicts the project area liquefaction and landslide hazard zones . Based on the liquefaction potential identified at the project location on Figure VII-2, the proposed project is not at a location that has any potential to be subject to liquefaction . Therefore, the project will not expose people or structures to potential substantial adverse liquefaction hazards, including the risk of loss, injury, or death involving landslides. No impacts under this issue are anticipated and no mitigation is required. No mitigation is required.

Landslides

No Impact – According to the San Bernardino County Liquefaction and Landslide Map, provided as Figure VII -2, the proposed project is not located in an area with any known earthquake induced landslide hazards. Based on a reconnaiss ance of the project area, the project area is generally flat and is completely developed. Therefore, the project will not expose people or structures to potential substantial adverse effects, including the risk of loss, injury, or death involving landslides. No impacts under this issue are anticipated and no mitigation is required.

b. Less Than Significant With Mitigation Incorporated – The entirety of the project area has been developed or has been graded, compacted, and paved with asphalt because the whole of the project area has been developed. As a result , the potential for soil erosion, loss of topsoil, and/or placing structures on unstable soils is generally considered less than significant. City and County grading standards, best management practices and the Storm Water Pollution Prevention Plan (SWPPP) and Water Quality Management Plan ( WQMP) are required to control the potential significant erosion hazards. The pipeline alignments will result in land disturbance in the areas that will require removal of pavement to accommodate the trenching required to install the various segments of pipeline.

Adequate drainage facilities exist to accommodate existing drainage flows, and no change will result once the roadways are repaved and the pipelines are in place belowground. Additionally, the State Street Facility and Well 12 sites are entirely developed and will require removal of existing concrete to modify the sites to include on-site infrastructure. This project will result in the disturbance of more than one acre of land and will require filing a Notice of Intent (NOI), securing a National Pollutant Discharge Elimination System (NPDES), general construction stormw ater discharge permit, and preparation and implementation of a Stormwater Pollution Prevention Plan (SWPPP). The SWPPP

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will include but not be limited to the following measures to mitigate potential impacts associated with erosion and surface water quality degradation during construction:

GEO-1 Stored backfill material shall be covered with water resistant material during periods of heavy precipitation to reduce the potential for rainfall erosion of the material. If covering is not feasible, then measure s such as the use of straw bales or sand bags shall be used to capture and hold eroded material on the project site for future cleanup.

GEO-2 Excavated areas shall be properly backfilled and compacted. Paved areas disturbed by this project will be repave d in such a manner that pipeline connections within adjacent roadways and other disturbed areas are returned to as near the pre-project condition as is feasible.

GEO-3 All exposed, disturbed soil (trenches, stored backfill, etc.) will be sprayed with water or soil binders twice a day or more frequently if fugitive dust is observed migrating from either of the well sites within which the water facilities are being installed.

GEO-4 The length of trench which can be left open at any given time will be limited to that needed to reasonably perform construction activities. This will serve to reduce the amount of backfill stored onsite at any given time.

The following mitigation measure will be implemented to ensure the discharge of surface runoff from the sites does not result in significant soil erosion or loss of topsoil.

GEO-5 The City shall identify any additional construction -related erosion and sedimentation prevention BMPs to ensure that the discharge of surface water does not cause erosion downst ream of the discharge point. This shall be accomplished by reducing the energy of any site discharge through an artificial energy dissipater or equivalent device. If any substantial erosion or sedimentation occurs, any erosion or sedimentation damage shall be restored to pre-discharge conditions.

Implementation of the above measures in conjunction with mitigation measures identified in the Hydrology/Water Quality Section will adequately mitigate potential impacts associated with the water- related erosion of soil.

c. Less Than Significant Impact – As stated under issues VII(a[iii]) and VII(a[iv]) above, the project footprint is not located in areas that are susceptible to landslides and liquefaction. This indicates that the project footprint and general area are unlikely to be underlain by unstable soils, or be affected by subsidence, lateral spreading, or collapse. Additionally, the proposed project footprint is currently fully developed, which minimizes the potential for geologic hazards such as subsidence, liquefaction, shrinkage, or collapse to occur at the project site. Furthermore, damage to pipelines can occur, but can be repaired and placed back into operation with no loss of human life. Therefore, due to the nature of the proposed project, and the type of soil unit underlying the project sit e, the proposed project has a less than significant potential to be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the project, and potentially result in onsite or offsite land - slide, lateral spreading, subsidence, liquefaction or collapse. No further mitigation is required.

d. Less Than Significant Impact – According to the United States Department of Agriculture (USDA) Web Soil Survey Soil map prepared for the project site (Appendix 5), the proposed project sites (Well 12 and Well14/Reservoir 5) are located on Tujunga loamy sand, 0 to 5 percent slopes and Hanford sandy loam, 0 to 2 percent slopes Expansive soils are typically in the clay soil family, which are not present within the project footprint; furthermore, while damage to pipelines can occur,

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damaged pipelines can be repaired and placed back into operation with no loss of human life. Given the above, the proposed project would have a less than significant potential to be located on expansive soil, as defined in Table 18-1-B of the Uniform Building Code (1994), creating substantial risks to life or property.

e. No Impact – This project will develop an 8,500-gallon brine waste storage tank and a 2,500 -gallon softener waste storage tank, and up to about 22,480 LF of water transmission, brine, softener waste, and sewer waste pipeline. Additionally, the proposed project will require installation of a new restroom at the State Street Water Treatment site, which will connect to the municipal wastewater collection system. Therefore, given that the brine waste, softener waste, and wastewater will be discharged into the respective municipal collection systems, no impact to underlying soil from wastewater disposal can occur and no mitigation is required.

f. Less Than Significant With Mitigation Incorporated – No unique geologic features exist within the project footprint, and no unique geologic features are known or suspected to occur beneath the sites.

The potential for discovering paleontological resources during development of the project is considered highly unlikely based on the fact that the footprint has been previous ly engineered and disturbed at depth. However, because the project area has not been surveyed in recent history, and the fact that these resources are located beneath the surface and can only be discovered as a result of ground disturbance activities, the following measure shall be implemented:

GEO-6 Should any paleontological resources be encountered during construction of these facilities, earthmoving or grading activities in the immediate area of the finds shall be halted and an onsite inspection should be performed immediately by a qualified paleon tologist. Responsibility for making this determination shall be with the City’s onsite inspector. The paleontological professional shall assess the find, determine its significance, and determine appropriate mitigation measures within the guidelines of t he California Environmental Quality Act and only where applicable, the National Environmental Policy Act, that shall be implemented to minimize any impacts to a paleontological resource.

With the implementation of the above mitigation measure, the project would have a less than significant potential to directly or indirectly destroy a unique paleontological resource or site or unique geologic feature.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

VIII. GREENHOUSE GAS EMISSIONS: Would the
project:

a) Generate greenhouse gas emissions, either directly
or indirectly, that may have a significant impact on the environment?

b) Conflict with an applicable plan, policy or regulation adopted for the purpose of reducing the emissions of
greenhouse gases?

SUBSTANTIATION: The following information utilized in this section of the Initial Study was obtained from the Air Quality and GHG Impact Analysis, State Street Water Treatment Project, Chino (Unincorporated San Bernardino County), California prepared by Giroux and Associates dated December 9, 2021. This document is provided as Appendix 2 to this document.

Thresholds of Significance

In response to the requirements of SB 97, the State Resources Agency developed g uidelines for the treatment of GHG emissions under CEQA. These new guidelines became state laws as part of Title 14 of the California Code of Regulations in March 2010. The CEQA Appendix G guidelines were modified to include GHG as a required analysis element. A project would have a potentially significant impact if it:

• Generates GHG emissions, directly or indirectly, that may have a significant impact on the environment, or,
• Conflicts with an applicable plan, policy or regulation adopted to reduce GHG emissions.

California Code of Regulations, Title 14, Division 6, Chapter 3, Section 15064.4 specifies how significance of GHG emissions is to be evaluated. The process is broken down into quantification of project -related GHG emissions, making a determination of significance, and specification of any appropriate mitigation if impacts are found to be potentially significant. At each of these steps, the new GHG guidelines afford the lead agency with substantial flexibility.

Emissions identificatio n may be quantitative, qualitative or based on performance standards. CEQA guidelines allow the lead agency to “select the model or methodology it considers most appropriate.” The most common practice for transportation/combustion GHG emissions quantifica tion is to use a computer model such as CalEEMod, as was used in the ensuing analysis.

The significance of those emissions then must be evaluated; the selection of a threshold of significance must take into consideration what level of GHG emissions would be cumulatively considerable. The guidelines are clear that they do not support a zero net emissions threshold. If the lead agency does not have sufficient expertise in evaluating GHG impacts, it may rely on thresholds adopted by an agency with greater expertise.

On December 5, 2008 the SCAQMD Governing Board adopted an Interim quantitative GHG Significance Threshold for industrial projects where the SCAQMD is the lead agency (e.g., stationary source permit projects, rules, plans, etc.) of 10,000 Metric Tons (MT) CO2 equivalent/year. In the absence of an adopted numerical threshold of significance, project related GHG emissions in excess of the above guideline level are presumed to trigger a requirement for enhanced GHG reduction at the project level.

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Impact Analysis

a&b. Less Than Significant Impact – Global Climate Change (GCC) is defined as the change in average meteorological conditions on the earth with respect to temperature, precipitation, and storms. Many scientists believe that the climate shift taking place since the industrial revolution (1900) is occurring at a quicker rate and magnitude than in the past. Scientific evidence suggests that GCC is the result of increased concentrations of greenhouse gases in the earth’s atmosphere, including c arbon dioxide, methane, nitrous oxide, and fluorinated gases. Many scientists believe that this increased rate of climate change is the result of greenhouse gases resulting from human activity and industrialization over the past 200 years.

An individual project like the proposed project evaluated in th e greenhouse gas (GHG) analysis cannot generate enough greenhouse gas emissions to effect a discernible change in global climate.

However, the proposed project may participate in the potential for GCC by its incremental contribution of greenhouse gasses combined with the cumulative increase of all other sources of greenhouse gases, which when taken together constitute potential influences on GCC.

Statewide, the framework for developing the implementing regula tions for AB 32 is under way.

Maximum GHG reductions are expected to derive from increased vehicle fuel efficiency, from greater use of renewable energy and from increased structural energy efficiency . Additionally, through the California Climate Action Registry (CCAR now called the Climate Action Reserve ), general and industry-specific protocols for assessing and reporting GHG emissions have been developed. GHG sources are categorized into direct sources (i.e. , company owned) and indirect sources (i.e. , not company owned). Direct sources include combustion emissions from on -and off -road mobile sources, and fugitive emissions. Indirect sources include off -site electricity generation and non - company owned mobile sources.

Project Related GHG Emissions Generated

Construction Activity GHG Emissions
The project is assumed to occur over a 1.5-year period. During project construction, the CalEEMod2020.4.0 computer model predicts that the construction activities will generate the annual CO2e emissions identified in Table VIII-1.

Table VIII-1
CONSTRUCTION EMISSIONS (metric tons CO2(e))

On-Site CO2e
Year 2022 151.8
Year 2023 246.9
Off-Site
Year 2023 43.5
Total 442.2
Amortized 14.7
*CalEEMod Output provided in appendix

SCAQMD GHG emissions policy from construction activities is to amortize emissions over a 30-year lifetime. The amortized level is also provided. GHG impacts from construction are considered individually less than significant.

Operational GHG Emissions
Except for occasional maintenance, the only operational source of GHG emissions would be associated with pumping and treatment operations. Electricity is generated from a variety of

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resources at various locations in the western United States. The California Climate Action Registry Protocol (2009) states that each megawatt -hour (MW -HR) of electricity consumption in California results in the release of 0.331 MT of CO2(e).

Below is preliminary data on power consumption provided by the project engineer which, as a worst case, assumes that the equipment will be operating continuously at full load. This assumption will provide a maximum estimate.

Table VIII-2

OPERATIONAL POWER USAGE ESTIMATES

Location Connected Load (kW) kWh per day kWh per year
Well 12 684 16,416 5,991,840
Chino State Street 749 17,976 6,561,240

The total project consumption is almost 13 MW per year. Electricity use will result in GHG emissions from the fossil fueled fraction of Southern California’s electrical resource calculated as follows:

13 MWH/year x 0.331 MT/MWH = 4.3 MT/year

The screening threshold of 10,000 MT of CO2(e) GHG emissions will not be exceeded and therefore operational GHG emissions would not exceed applicable emission thresholds.

Consistency with GHG Plans, Programs and Policies
In March 2014, the San Bernardino Associated Governments and Participating San Bernardino County Cities Partnership (Partnership) created a final draft of the San Bernardino County Regional Greenhouse Gas Reduction Plan (Reduction Plan) for each of the 25 jurisdictional Partner Cities in the County. The plan was recently updated in March of 202 1. The Reduction Plan was created in accordance with AB 32, which established a greenhouse gas limit for the state of California. The Reduction Plan seeks to create an inventory of GHG gases and develop jurisdiction specific GHG reduction measures and base line information that could be used by the Partnership Cities of San Bernardino County, including the County itself.

Projects that demonstrate consistency with the strategies, actions, and emission reduction targets contained in the Reduction Plan would h ave a less than significant impact on climate change. The project will generate minimal GHG emissions as shown. There are no reduction measures which are applicable to this project and therefore no consistency is required and impacts under this issue would therefore be less than significant.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

IX. HAZARDS AND HAZARDOUS MATERIALS:

Would the project:

a) Create a significant hazard to the public or the
environment through the routine transport, use, or
disposal of hazardous materials?

b) Create a significant hazard to the public or the
environment through reasonably foreseeable upset
and accident conditions involving the release of
hazardous materials into the environment?

c) Emit hazardous emissions or handle hazardous or
acutely hazardous materials, substances, or waste
within one-quarter mile of an existing or proposed
school?

d) Be located on a site which is included on a list of
hazardous materials sites compiled pursuant to
Government Code Section 65962.5 and, as a result,
would it create a significant hazard to the public or the environment?

e) For a project located within an airport land use plan or, where such a plan has not been adopted, within two
miles of a public airport or public use airport, would the project result in a safety hazard or excessive noise for people residing or working in the project area?

f) Impair implementation of or physically interfere with an adopted emergency response plan or emergency
evacuation plan?

g) Expose people or structures, either directly or
indirectly, to a significant risk of loss, injury or death involving wildland fires?

SUBSTANTIATION

a. Less Than Significant With Mitigation Incorporat ed – The project may create a significant hazard to the public or the environment through the routine transport, use, or disposal of hazardous materials.

However, in certain instances hazardous materials are used routinely in support treatment operations, and thus, some activities in support of this project may generate routine transport of hazardous materials. Construction activities would be r equired for the installation of proposed improvement upgrades at the existing Well 12 and State Street Facilities . Construction activities required for implementation of the facilities would potentially involve trenching, excavation, grading, and other ground-disturbing activities. The anticipated construction activities described above would temporarily require the transport, use, and disposal of hazardous materials including gasoline, diesel fuel, hydraulic fluids, paint, and other similarly related materials. Operational activities would require the installation of treatment facilities that use chemicals to ensure the water derived from the rehabilitated Wells 12 and 14 would be safe for drinking. Specifically, the project would install two Chlorine Gas Dosing Systems, thus requiring storage of Cl2 (chlorine gas). Additionally, the proposed water treatment process will include GAC, which will remove 1,2,3-TCP from the Wells 30, 32, and 33 water, and is an adsorbent material that removes a variety of natu ral organic compounds, taste and odor compounds, and synthetic organic compounds . In order to remove nitrate from the source

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water, IX will be utilized, which is a contaminant removal process that exchanges one set of ions for another. Chemicals stored ons ite for IX treatment include sodium chloride (NaCl) and hydrochloric acid (HCl). These materials would not enter the atmosphere and in the quantities and form s used, would not pose a significant hazard for nearby residents and other sensitive receptors . T he established handling protocols per federal, State, and local laws and regulations would ensure operational impacts for the proposed State Street Water Treatment Project facilities would be less than significant.

Although the City is required to manage the use of and disposal of hazardous or toxic materials in accordance with existing laws and regulations, the implementation of MMs HAZ-1 through HAZ-5, outlined below, is required to ensure that the use and generation of hazardous substances in support of the proposed project would not pose a significant hazard to workers, adjacent land uses, or the environment. These mitigation measures will be applied to the facilities proposed by this project and would reduce potential impacts to below significance thresholds.

HAZ-1 A Hazardous Materials Business Plan prepared and submitted to the Certified Unified Program Agency shall incorporate best management practices designed to minimize the potential for accidental release of such chemicals and shall meet the standards required by California law for Hazardous Materials Business Plans. The facility managers shall implement these measures to reduce the potential for accidental releases of hazardous materials or wastes. The Hazardous Materia ls Business Plan shall be approved prior to operation of the facilities proposed by this project.

HAZ-2 The Hazardous Materials Business Plan shall assess the potential accidental release scenarios and identify the equipment and response capabilities required to provide immediate containment, control , and collection of any released hazardous material. Prior to issuance of the certificate of occupancy, the proposed project facilities shall ensure that necessary equipment has been installed and training of p ersonnel has occurred to obtain sufficient resources to control and prevent the spread of any accidentally released hazardous or toxic materials.

HAZ-3 Prior to occupancy of any site for which storage of any acutely hazardous material will be required , su ch as chlorine gas, modeling of pathways of release and potential exposure of the public to any released hazardous material shall be completed and specific measures, such as secondary containment, shall be implemented to ensure that sensitive receptors wil l not be exposed to significant health threats based on the toxic substance involved.

HAZ-4 All hazardous material s during both operation and construction of the proposed project facilities shall be delivered to a licensed treatment, disposal, or recycling facility and be disposed of in accordance with State and federal law.

HAZ-5 Before determining that an area contaminated as a result of an accidental release during project operation or construction is fully remediated, specific thresholds of acceptable clean -up shall be established and sufficient samples shall be taken and tested within the contaminated area to verify that these clean -up thresholds have been met in compliance with State and federal law.

No additional mitigation is necessary to ensure the impact of managing these chemicals result in a less than significant impact on the environment. The activities associated with the State Street Water

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Treatment Plant Project would not involve signi ficant potential for routine transport or use of substantial volumes of hazardous materials or routine generation of hazardous wastes. Therefore, impacts are considered less than significant with mitigation incorporated.

b. Less Than Significant With Mit igation Incorporated – Construction and operational activities associated with implementation of the proposed project facilities could create hazards to the public or the environment through reasonably foreseeable upset and accident conditions involving th e release of hazardous materials used in construction activities and equipment.

Construction
Construction activities would involve the use of adhesives, solvents, paints, thinners, petroleum products, and other chemicals. Cal/OSHA regulations provide for the proper labeling, storage, and handling of hazardous materials to reduce the potential har mful health effects that could result from worker exposure to hazardous materials. If not properly handled, however, accidental release of these substances could expose construction workers, degrade soils, or become entrained in stormwater runoff, resulting in adverse effects on the public or the environment. The City is required to comply with all relevant and applicable federal, State, and local laws and regulations that pertain to the accidental release of hazardous materials during construction of propo sed facilities such as Health and Safety Code Sections 25500 et seq. Compliance with all applicable federal, State, and local regulations can reduce potential impacts to the public or the environment regarding accidental release of hazardous materials to less than significant impact, but a contingency mitigation measure is provided to ensure accidental releases and any related contamination would not significantly affect the environment at proposed project locations:

HAZ-6 All accidental spills or discharge of hazardous material during construction activities shall be reported to the Certified Unified Program Agency and shall be remediated in compliance with applicable federal, State, and local regulations regarding cleanup and disposal of the contaminant released. The contaminated waste shall be collected and disposed of at a licensed disposal or treatment facility. This measure shall be incorporated into the Stormwater Pollution Prevention Plan ( SWPPP) prepared for the proposed State Street Water Treatment Project facilities. Prior to accepting the site as remediated, the area contaminated shall be tested to verify that any residual concen - trations meet the standard for future residential or public use of the site.

As some structures may need to be demolished, such structures would need appropriate abatement of identified asbestos prior to demolition. Federal and State regulations govern the demolition of structures where materials containing lead and asbestos are present. ACMs are regulated both as a hazardous air pollutant under the Clean Air Act and as a potential worker safety hazard under the authority of Cal/OSHA. These requirements include SCAQMD Rules and Regulations pertaining to asbestos abatement (including Rule 1403); Construction Safety Orders 1529 (pertaining to asbestos) and 1532.1 (pertaining to lead) from CCR Title 8; CFR Title 40, Part 61, Subpart M (pertaining to asbestos); and lead exposure guidelines provided by the U.S. Department of Housing and Urban Development (HUD). Asbestos and lead abatement must be performed and monitored by contractors with appropriate certifications from the California Department of Health Services.

In addition, Cal/OSHA has regulations concerning the use of hazardous materials, including requirements f or safety training, availability of safety equipment, hazardous materials exposure warnings, and emergency action and fire prevention plan preparation. Cal/OSHA enforces the hazard communication program regulations, which include provisions for identifying and labeling hazardous materials, describing the hazards of chemicals, and documenting employee -training programs. All demolition that could result in the release of lead and/or asbestos would be conducted according to Cal/OSHA standards. Adherence to existing regulations and the mitigation measure provided below would ensure that potential impacts related to ACMs and LBPs would be less than significant.

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The use of hazardous materials and substances during construction would be subject to the federal, State, and local health and safety requirements for the handling, storage, transportation, and disposal of hazardous materials, summarized in the Regulatory Setting. With compliance with these regulations, and preparation and implementation of MM HAZ-6, hazardous material impacts related to construction activities would be less than significant.

Operation
Operation of the proposed project facilities could include the storage and use of chemicals. The project GAC backwash tank, brine waste storage tank, and backwash waste tanks would be designed in accordance with the applicable hazardous materials storage regulations for long -term use summarized in the Regulatory Setting. The delivery and disposal of chemicals to and from water treatment facility sites would o ccur in full accordance with all applicable federal, State, and local regulations. Additionally, any use of sodium hypochlorite, a diluted hazardous material , would not enter the atmosphere and in the quantities and form used, would not pose a significant hazard for nearby sensitive uses . The established handling protocols per federal, State, and local laws and regulations would ensure operational impacts would be less than significant.

As noted above under issue IV(a), a Hazardous Materials Business Plan (HMBP) must be prepared per MMs HAZ-1 and HAZ-2 and implemented for the proposed facility upgrades as required by the County of San Bernardino CUPA. The HMBP would minimize hazards to human health and the environment from fires, explosions, or an accident al release of hazardous materials into air, soil, surface water, or groundwater. Compliance with all applicable federal, State, and local regulations regarding the handling, storage, transportation, and disposal of hazardous materials, and preparation and implementation of the HMBP would reduce potential impacts to the public, employees, or the environment as a result of reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment . Impacts are less t han significant with the incorporation of mitigation.

c. Less Than Significant With Mitigation Incorporated – The project will not emit hazardous emissions or acutely hazardous materials, substances, or waste within one -quarter mile of an existing or proposed school. The proposed State Street Water Treatment Plant is located within the site containing the existing Well 14 and Reservoir 5 , which is located within one quarter mile of Oaks Middle School and Mission Elementary School. The proposed project will include the development of the State Street Water Treatment Plant, which will require use of several materials that are potentially hazardous when not handled according to federal, State, and local regulations. These materials will be enclosed within a container that can control accidental release . The pipeline alignments, which will not involve the use of hazardous materials and will be located underground, would be located within one quarter mile of Oaks Middle School and Mission Elementary School. As previously stated, construction activities would use limited quantities of hazardous materials, such as gasoline and diesel fuel. As a general rule, well and a ncillary facility construction activities do not require any acutely hazardous materials. Additionally, the City is required to comply with all relevant and applicable federal, State, and local laws and regulations that pertain to the release of hazardous materials during construction of proposed facilities. Compliance with all applicable federal, State, and local regulations and MMs HAZ-1 through HAZ-6 would reduce potential impacts to the public or the environment regarding hazardous waste discharges or emissions within one-quarter mile of a school during construction. Impacts would be less than significant with implementation of mitigation.

Operation of the proposed project would consist of facilities designed to extract and treat water from the Chino Groundwater Basin, which would require storage of some hazardous materials. However, the City is required to manage the use of and disposal of hazardous or toxic materials in accordance with existing laws and regulations, the implementation of MMs HAZ-1 through HAZ-6 is required to ensure that the use and generation of hazardous substances in support of the proposed project would not pose a significant hazard to schools located in close proximity to the project. Furthermore, the quantity and types of hazardous materials utilized at the project would limit the potential for exposure at nearby schools even further. Adherence to federal, State, and local policies and regulations, as

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well as the implementation of the above mitigation measures will ensure that the project will not emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an existing or proposed school du ring either construction or operations of the Project.

d. Less Than Significant Impact – According to the California State Water Board’s GeoTracker site, which provides information regarding Leaking Underground Storage Tanks (LUST), there are no active LUST locations within or around the project alignment (Figure IX-1 and IX-2). There are 5 LUST Cleanup sites adjacent to the overall project footprint (Figure IX -3 through IX -12); the source of contamination has been remediated at these LUST Cleanup sites. Therefore, these remediated LUST Cleanup sites will have no potential to pose a hazard to the public or the environment . Given that there are no open LUST cases within the vicinity of the proposed project or within the project sites themselves, impacts un der this issue are considered less than significant and no mitigation is required.

e. No Impact – There nearest public airport is the Ontario International Airport, located approximately

3.3 miles east of the project. According to the LA/Ontario International Airport Land Use Compatibility Plan, Compatibility Policy Map: Safety Zones (Figure IX-13), the proposed project is not located within an Airport Safety Zone . Though the project is being proposed by the City of Chino, the proposed project is greater than two miles north of the Chino Airport, and furthermore, is located well outside of the Airport Safety Review Area according to the San Bernardino Countywide Plan Airport Safety and Planning Areas Map. There are no private airstrips located within two miles of the project site.

As such, given that the propose project is located outside of any Airport safety zones, and no airport or airstrips are located within 2 miles of the proposed project, the project has no potential to cause or experience any adverse impact related to private airstrip operations. No impacts will occur as a result of project implementation. No mitigation is required.

f. Less Than Significant W ith Mitigation Incorporated – According to the San Bernardino Countywide Plan Evacuation Route Map (Figure IX -14), no evacuation routes have been identified within the project footprint. There are nearby routes that have been identified, such as at Euclid Avenue to the east of the project footprint, though the proposed project would not disrupt traffic at any identified evacuation route within either the City of Chino, City of Montclair, or the County of San Bernardino.

A limited potential to interfere wit h an emergency response or evacuation plan will occur during construction. This is due to the installation of pipelines within roadways. At no time during the installation of pipeline will the entirety of these roadways be closed. The project would requi re one lane to be closed, which would allow for through -traffic so long as a traffic management plan is developed and implemented. As such, please r efer to the Transportation/Traffic Section of this document, Section XVII. MM TRAN-1 and TRAN-2 would address any potential traffic disruption and emergency access issues on area roadways are included in this section. Impacts are reduced to a less than significant level with mitigation incorporated. No additional mitigation is required.

g. No Impact – According to the San Bernardino County wide Plan Fire Hazard Severity Zones Map of the project area, the proposed project is not located within a high or very high fire hazard severity zone (Figure IX-15). The proposed project area is located in an urban area removed from the high fire hazard areas that are located adjacent to the San Gabriel Mountains. Therefore, project implementation would not result and a potential to expose people or structures to fire hazards.

Potential project-related impacts are less than significant; no mitigation measures are required.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

X. HYDROLOGY AND WATER QUALITY: Would the
project:

a) Violate any water quality standards or waste
discharge requirements or otherwise substantially
degrade surface or groundwater quality?

b) Substantially decrease groundwater supplies or
interfere substantially with groundwater recharge such
the project may impede sustainable groundwater
management of the basin?

c) Substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or river or through the addition of
impervious surfaces, in a manner which would:

(i) result in substantial erosion or siltation onsite or offsite?

(ii) substantially increase the rate or amount of
surface runoff in a manner which would result in
flooding onsite or offsite?

(iii) create or contribute runoff water which would
exceed the capacity of existing or planned
stormwater drainage systems or provide
substantial additional sources of polluted
runoff?; or,

(iv) impede or redirect flood flows?

d) In flood hazard, tsunami, or seiche zones, risk
release of pollutants due to project inundation?

e) Conflict with or obstruct implementation of a water
quality control plan or sustainable groundwater
management plan?

SUBSTANTIATION

a. Less Than Significant With Mitigation Incorporated – The proposed State Street Water Treatment Project facilities are located within Unincorporated San Bernardino County and the City of Chino, with a small portion of the pipeline alignment in the City of Montclair. The project in and of itself will result in construction of new water treatment systems that would allow the City to reduce levels of 1,2,3-TCP, perchlorate, and nitrate to acceptable DDW levels. For a developed area, the only three sources of potential violation of water quality standards or waste discharge requirements are from generation of municipal waste water; from stormwater runoff; and potential discharges of pollutants, such as accidental spills. The Cities and County implement National Pollutant Discharge Elimination System (NPDES) requirements for surface discharge for all qualified projects. The Project site is beyond one acre in size ; therefore, it is required to obtain coverage under an NPDES permit. To address stormwater and accidental sp ills within this environment, any new project must ensure that site development implements a SWPPP to control potential sources of water pollution that could violate any standards or discharge requirements during construction. Also, a Water Quality Management Plan (WQMP) must be prepared and implemented to ensure that project -related surface runoff meets discharge requirements over the long term. Implementation of the following

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mitigation measure is also considered adequate to reduce potential impacts to operational surface runoff to a less than significant level.

HYD-1 The Project-Specific Water Quality Management Plan (WQMP) which defines catch basins and other drainage capture mechanisms as permanent Best Management Practices shall be implemented to pr event long -term surface runoff from discharging pollutants from site on which construction has been completed. The WQMP shall be implemented with the goal of achieving a reduction in pollutants following construction to control urban runoff pollution to the maximum extent practicable based on available, feasible best manage - ment practices at the time of construction. The stormwater discharge from the project site shall be treated to control pollutant concentrations for all pollutants, but especially for those identified pollutants that impair down - stream surface water quality (Santa Ana River) at the time construction occurs.

Source Control BMPs reduce the potential for urban runoff and pollutants from coming into contact with one another. Source Control BMPs that may be incorporated into the project are described in County’s Technical Guidance Manual (TGM).

The SWPPP would specify the Best Manage ment Practices (BMPs) that the project would be required to implement during construction activities to ensu re that all potential pollutants of concern are controlled, minimized, and/or otherwise appropriately treated prior to being discharged from the subject property as stormwater runoff. Compliance with the terms and conditions of the NPDES and the SWPPP is mandatory and is judged adequate mitigation by the regulatory agencies for potential impacts to stormwater during construction activities. Implementation of the following mitigation measure is also considered adequate to reduce potential impacts to construction-related stormwater runoff to a less than significant level.

HYD-2 The City shall require that the construction contractor prepare and implement a Storm Water Pollution Prevention Plan (SWPPP) which specifies Best Management Practices (BMPs) that will prevent all construction pollutants from contacting stormwater and with the intent of keeping all products of erosion from moving offsite into receiving waters. The SWPPP shall include a Spill Prevention and Cleanup Plan that identifies the methods o f containing, cleanup, transport and proper disposal of hazardous chemicals or materials released during construction activities that are compatible with applicable laws and regulations. BMPs to be implemented in the SWPPP may include but not be limited to:
• The use of silt fences;
• The use of temporary stormwater desilting or retention basins; • The use of water bars to reduce the velocity of stormwater runoff; • The use of wheel washers on construction equipment leaving the site; • The washing of silt from public roads at the access point to the site to prevent the tracking of silt and other pollutants from the site onto public roads;
• The storage of excavated material shall be kept to the minimum necessary to efficiently perform the construction acti vities required. Excavated or stockpiled material shall not be stored in water courses or other areas subject to the flow of surface water; and
• Where feasible, stockpiled material shall be covered with waterproof material during rain events to control erosion of soil from the stockpiles.

With implementation of these mandatory Plans and their BMPs, as well as MM HAZ-1 through HAZ-6 and HYD-1 above, the development of the State Street Water Treatment Project will not cause a violation of any water quality standards or waste discharge.

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b. Less Than Significant Impact – The proposed project would not substantially deplete groundwater supplies or interfere substantially with groundwater recharge such that the project may impede sustainable groundwater management of the Basin. The proposed project would enable two existing City Wells contribute once again to the City’s available water supply, as Wells 12 and 14 have out of service due to unacceptable levels of 1,2,3-TCP, perchlorate, and nitrate. The rehabilitation of these existing wells would therefore expand the City’s water supply from that which is available at present, but not from that which has been historically present as the supply capacity of these two wells was been previously analyzed when the wells were online. Ultimately, the proposed project will expand the infrastructure from Well 12 to reach the Well 14 site where the raw water will be treated by a new Water Treatment Plant to reduce levels of 1,2,3-TCP, perchlorate, and nitrate to acceptable DDW levels. In effect, the treatment program will expand the available groundwater from the Chino Basin aquifer. According to the City’s 2020 Urban Water Management Plan (UWMP), the City currently produces groundwater from the Chino Basin. The City’s share of the Operating Safe Yield is 7.357 percent. Over the past five years, the City has produced 4,308 acre-feet-per-year (AFY) to 5,162 AFY, with an average of 4,939 AFY from the Chino Basin. The proposed project would enable the City to treat about 1,600 AFY from the Well s 12 and 14 combined supplies. The proposed project would not create a greater area of impervious surface than that which exists within the project footprint, and also would not require greater water supplies from the aquifer in order to operate, particularly because the proposed project would treat a comparable amount of water for potable use to that which the City of Chino supply at present, and would operate within the Operating Safe Y ield of the Chino Basin . Thus, the State Street Water Treatment Project is not forecast to cause a significant demand for new groundwater supplies. The potential impact under this proposed project is considered less than significant; no mitigation measures are required.

c. i. Result in substantial erosion or siltation onsite or offsite?

Less Than Significant Impact – The proposed project is not anticipated to significantly change the volume of flows downstream of the project site, and would not be anticipated to change the amount of surface water in any water body in an amount that could initiate a new cycle of erosion or sedimentation downstream of the project site. The onsite drainage system will capture the incremental increase in runoff from the project site associated with project development. Furthermore, once installed, the roadways within which the pipeline alig nments will be located would be returned to their original condition or better and as such would not create any potential for greater erosion on or offsite. The new State Street Water Treatment Project site currently has no below-grade drainage facilities. During small rain events, water most likely infiltrates into the site soils. Large rain events likely see surface flows towards the southerly end of the site where they eventually drain onto Benson Avenue. Drainage at the site will be handled in a similar way for the proposed improvements. Site grades will promote surface flow towards one of the on-site catch basins, which drain directly into the proposed on -site percolation pond . Areas outside of access roads and treatment pads will be pervious, such as c rushed rock or gravel . The Well 12 site will be improved, but will not require additional runoff infiltration or capture facilities as such facilities are already in place at the project site. The downstream drainage system will not be altered and given t he control of future surface runoff from the State Street Water Treatment Project site, the potential for downstream erosion or sedimentation will be controlled to a less than significant impact level.

c. ii. Substantially increase the rate or amount of s urface runoff in a manner which would result in flooding onsite or offsite?

Less Than Significant Impact – The proposed project will alter the existing drainage courses or patterns onsite but will maintain the existing offsite downstream drainage system through control of future discharges from the site , which would prevent flooding onsite or offsite from occurring. The proposed onsite drainage system will capture the incremental increase in runoff from the project site associated with project development at the State Street Water Treatment Project site. The new State Street Water Treatment Project site currently has no below -grade drainage facilities. During small rain events, water most likely infiltrates into the site soils. Large rain events lik ely see surface flows

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towards the southerly end of the site where they eventually drain onto Benson Avenue. Drainage at the site will be handled in a similar way for the proposed improvements. Site grades will promote surface flow towards one of the on -site catch basins, which drain directly into the proposed on -site percolation pond . Areas outside of access roads and treatment pads will be pervious, such as crushed rock or grave l. The Well 12 site will be improved, but will not require additional runoff infiltration or capture facilities as such facilities are already in place at the project site. Thus, the implementation of onsite drainage improvements and applicable requirements will ensure that drainage and stormwater will not substantially increase the rate or amount of surface runoff in a manner that would result in flooding on- or off-site. Impacts under this issue are considered less than significant with no mitigation required.

c. iii. Create or contribute runoff water which would exceed the capaci ty of existing or planned stormwater drainage systems or provide substantial additional sources of polluted runoff?

Less Than Significant Impact – The proposed project will alter the site such that drainage within the site will be modified, but will maintain the existing offsite downstream drainage system through control of future discharges from the site, which would prevent the project from exceeding the capacity of existing or planned stormwater drainage systems and from providing substantial additiona l sources of polluted runoff. The new State Street Water Treatment Project site currently has no below -grade drainage facilities. During small rain events, water most likely infiltrates into the site soils. Large rain events likely see surface flows towards the southerly end of the site where they eventually drain onto Benson Avenue. Drainage at the site will be substantially contained on -site for the proposed improvements. Site grades will promote surface flow towards one of the on -site catch basins, which drain directly into the proposed on-site percolation pond. Areas outside of access roads and treatment pads will be pervious, such as crushed rock or gravel. The pipeline alignments will be installed within existing roadways that would be returned to their original or better condition once the pipeline has been installed, and therefore no changes to the stormwater drainage system within these roadways are anticipated. Thus, the implementation of onsite drainage improvements at the State Street Water Treatment Plant site and applicable requirements throughout the project footprint will ensure that that drainage and stormwater will not create or contribute runoff that would exceed the capacity of existing or planned offsite stormwater drainage systems or provide substantial additional sources of polluted runoff. Impacts under this issue are considered less than significant with no mitigation required .

c iv. Impede or redirect flood flows?

Less Than Significant Impact – According to the San Bernardino Countywide Plan Flood Hazard Map (Figure X-1), the proposed project footprint is not located in an area that contains any flood hazards.

Furthermore, development of this site is not anticipated to redirect or impede flood flow at the project site, particularly given that drainage on site will be directed to the onsite drainage systems, which will be capable of intercepting the future flow rate from the project site . Therefore, impacts under this issue are considered less than significant and no mitigation is required.

d. No Impact – According to the San Bernardino County wide Plan Dam and Basin Hazards Map depicting the project area, the proposed project is not located in an area susceptible to dam inundation (Figure X-2). Therefore, dam inundation is not likely, and implementation of the proposed project would not expose people or structures to any significant risk of releasing pollutants involving flooding as a r esult of a levee or dam to risk than that which presently exists within the proj ect footprint. No mitigation is required.

e. Less Than Significant Impact – The purpose of the proposed project is to reduce levels of 1,2,3-TCP, perchlorate, and nitrate to acceptable DDW levels within the City of Chino’s respective service areas by developing a Water Treatment Plant that would treat water from Wells 12 and 14, w hich are currently inactive as a result of the presence of these contaminants. Water quality results for the City Wells 12 and 14 show concentrations of 1,2,3 -TCP, nitrate, and perchlorate at levels above the respective DLRs/MCLs for these constituents. The proposed project would ensure that the water

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quality from these two wells improves to a level that is below the DLRs/MCLs for each constituent .

As such, the proposed project would result in the City conforming to DDW standards, and therefore, the propose d project would have a less than significant potential to conflict with or obstruct implementation of a water quality control plan or sustainable groundwater management plan .

Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

XI. LAND USE AND PLANNING: Would the project:

a) Physically divide an established community?

b) Cause a significant environmental impact due to a
conflict with any land use plan, policy, or regulation
adopted for the purpose of avoiding or mitigating an
environmental effect?

SUBSTANTIATION

a. No Impact – The project consists of development of a State Street Water Treatment Plant at the existing State Street Facility site, and the installation of various pipeline alignments as supporting infrastructure. The pipeline alignments have no General Plan Land Use Designation because pipelines and the roadways in which the pipeline will be installed are considered essential infrastructure. The State Street Facility is located in the County of San Bernardino and has a land use designation of Public Quasi Public. Well 12 is located in the City of Chino within land that has been designated as Public Facility use. Each of these sites contains existing City water infrastructure, including wells and reservoirs at both the Well 12 and Well 14 sites. As such, development at these project sites would not physically divide an established community, particularly given that the addition of the State Street Water Treatment Plant is a complimentary use to that which exists on the State Street Facility site. Furthermore, with the exception of the pipeline s proposed as part of this project , the proposed project facilities would be located internally within the Well 12 and State Street Facility sites, thus minimizing the potential for dividing an established community. The development of the pipeline alignments would not result in physically dividing an established community, particularly because this action will occur within existing road rights -of-way and once constructed, the pipeline will be installed belowground and the roadways will continue to function as they do at present. No impacts are anticipated and no mitigation is required.

b. Less Than Significant Impact – Please refer to the discussion under issue XI(a) above. The proposed State Street Facility , which is located in the County of San Bernardino is zoned as IC Community Industrial. Well 12 is located in the City of Chino on land with a zoning classification of P: Public. The types of improvements proposed by this project are considered land use independent, and can be constructed within any land use designation or zoning classification. Additionally, several features of the proposed project, such as the water transmission pipelines, will be constructed below ground within existing road rights -of-way, and will have no permanent effect on the efficiency of the surrounding roadway systems. Therefore, implementation will not cause a significant environmental impact due to a conflict with any land use plan, policy, or regulati on adopted for the purpose of avoiding or mitigating an environmental effect. Any impacts are considered less than significant. No mitigation is required.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

XII. MINERAL RESOURCES: Would the project:

a) Result in the loss of availability of a known mineral resource that would be of value to the region and the
residents of the state?

b) Result in the loss of availability of a locally important mineral resource recovery site delineated on a local
general plan, specific plan or other land use plan?

SUBSTANTIATION:

a&b. No Impact – The proposed project will occur within sites containing existing water infrastructure facilities including Well 12 at one location, and Well 14 and Reservoir 5 at the State Street Facility location. Additionally, the project will occur within existing paved roadways as the proposed pipeline alignments would be installed. No mineral resources are known to be located within the project footprint and no mining operations exist within the project footprint. According to a review of the California Department of Conservation Mineral Land Classification (MLC) studies index, there are no active mining activities within the project footprint. Past mining activities have left several large pits in the Cities of Montclair and Upland, which are now being used for flood control and water conservation purposes. Future utilization of sand and gravel resources within the project footprint and general project area is unlikely due to the extensive urban development that presently exists . Furthermore, the San Bernardino Countyw ide Plan Mineral Resource Map (Figure XII -1) indicates that the proposed project is located within a Mineral Resources Zone (MRZ) 2, where aggregate resources have a moderate potential to exist. Based on the developed nature of the project site and surrounding area, as well as the existing land use designation s (Public Facility and Public Quasi Public ), the development proposed by the project will not cause any loss of mineral resource values to the region or residents of the state, nor would it result in t he loss of any locally important mineral resources identified in either the City of Chino or County of San Bernardino General Plans . No impacts would occur under this issue. No mitigation is required.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

XIII. NOISE: Would the project result in:

a) Generation of a substantial temporary or permanent
increase in ambient noise levels in the vicinity of a
project in excess of standards established in the local general plan or noise ordinance, or applicable
standards of other agencies?

b) Generation of excessive groundborne vibration or
groundborne noise levels?

c) For a project located within the vicinity of a private airstrip or an airport land use plan or, where such a
plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to
excessive noise levels?

SUBSTANTIATION

Background

Noise is generally described as unwanted sound. The proposed State Street Water Treatment Project will occur within sites and areas containing existing development. The proposed project sites include the Well 12 site, and the State Street Facility site. These sites contain existing wells, reservoirs, and other water system infrastructure, while the roadways within which the preferred pipeline alignments will be installed function as roadways connecting the communities within Unincorporated San Bernardino County and the City of Chino with the City of Montclair and surrounding development. The project site is located in an area surrounded by the following land uses: Industrial (City of Montclair, City of Chino, County of San Bernardino, City of Ontario), LI: Limited Industrial (County), Single Family Residential (City of Montclair, County of San Bernardino, City of Ontario, City of Chino ), Commercial (City of Montclair , County of San Bernardino , City of Chino), Medium Density Residential (City of Montclair and County of San Bernardino ). The proposed project sites are located on Public and Public Quasi Public designated land within the City of Chino and County of San Bernardino. Generally, the State Street Water Treatment Facility will be located at a site that experiences a high background level because it is located adjacent to the railroad line which traverses the northern boundary of the project site just north of State Street. A majority of the operational noise will be generated at this site. No sensitive uses are located within 800 feet of this site due to the in dustrial nature of this corridor. The Well 12 site is located within the City of Chino, and once the improvements at Well 12 have been made, the Well will continue to generate noise at a similar rate of that which has been previously analyzed at the time Well 12 was installed. Furthermore, noise generated from the pump system at Well 12 will be enclosed, thus minimizing the potential for noise to spill over at nearby residential uses.

The unit of sound pressure ratio to the faintest sound detectable to a person with normal hearing is called a decibel (dB). Sound or noise can vary in intensity by over one million times within the range of human hearing. A logarithmic loudness scale, similar to the Richter scale for earthquake magnitude, is therefore used to keep sound intensity numbers at a convenient and manageable level. The human ear is not equally sensitive to all sound frequencies within the entire spectrum. Noise levels at maximum human sensitivity from around 500 to 2,000 cycles per second are factored more heavily into sound descriptions in a process called “A-weighting,” written as “dBA.”

Leq is a time-averaged sound level; a single-number value that expresses the time-varying sound level for the specified period as though it were a constant sound level with the same total sound energy as the time- varying level. Its unit is the decibel (dB). The most common averaging period for Leq is hourly.

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Because community receptors are more sensitive to unwanted noise intrusion during more sensitive evening and nighttime hours, state law requires that an artificial dBA increment be added to quiet time noise levels. The State of California has established guidelines for acceptable community noise levels that are based on the Community Noise Equivalent Lev el (CNEL) rating scale (a 24 -hour integrated noise measurement scale). The guidelines rank noise land use compatibility in terms of "normally acceptable," "conditionally acceptable," and "clearly unacceptable" noise levels for various land use types. The State Guidelines, Land Use Compatibility for Community Noise Exposure, single -family homes are "normally acceptable" in exterior noise environments up to 60 dB CNEL and "conditionally acceptable" up to 70 dB CNEL based on this scale. Multiple family resid ential uses are "normally acceptable" up to 65 dB CNEL and "conditionally acceptable" up to 70 CNEL. Schools, libraries and churches are "normally acceptable" up to 70 dB CNEL, as are office buildings and business, commercial and professional uses with so me structural noise attenuation.

Below is an outline of the noise ordinances that apply to the project area. Note that a majority of the operational noise will occur within the City of Chino and Unincorporated San Bernardino County.

Construction noise can be expected to occur within the Cities of Chino and Montclair, as well as in San Bernardino County. Construction noise may also spill over into the City of Ontario.

San Bernardino County Development Code

83.01.080 Noise.

B. Noise Impacted Areas. Areas within the County shall be designated as “noise-impacted” if exposed to existing or projected future exterior noise levels from mobile or stationary sources exceeding the standards listed in Subdivision (d) (Noise Standards for Stationary Noise Sources) and Subdivision (e) (Noise Standards for Adjacent Mobile Noise Sources), below. New development of residential or other noise -sensitive land uses shall not be allowed in noise -impacted areas unless effective mitigation measures are incorporated into th e project design to reduce noise levels to these standards. Noise -sensitive land uses shall include residential uses, schools, hospitals, nursing homes, religious institutions, libraries, and similar uses.

C. Noise Standards for Stationary Noise Sources.

1. Noise Standards. Table 83-2 (reproduced herein as Table XIII-1) describes the noise standard for emanations from a stationary noise source, as it affects adjacent properties.

Table XIII-1
COUNTY OF SAN BERNARDINO NOISE STANDARDS FOR STATIONARY NOISE SOURCES (dBA Leq)

Affected Land Uses (Receiving Noise) 7:00 a.m. – 10:00 p.m. 10:00 p.m. – 7:00 a.m.

Residential 55 45
Professional Services 55 55
Other Commercial 60 60
Industrial 70 70
dBA = A-weighted decibel; Leq = equivalent noise level
Source: San Bernardino County Development Code, Table 83-2

2. Noise Limit Categories. No person shall operate or cause to be operated a source of sound at a location or allow the creation of noise on property owned, leased, occupied, or otherwise controlled by the person, which causes the noise level, when measured on another property, either incorporated or unincorporated, to exceed any one of the following:
a. The noise standard for the receiving land use as specified in Su bdivision (b) (Noise - Impacted Areas), above, for a cumulative period of more than 30 minutes in any hour. b. The noise standard plus 5 dBA for a cumulative period of more than 15 minutes in any hour.
c. The noise standard plus 10 dBA for a cumulative perio d of more than five minutes in any hour.

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d. The noise standard plus 15 dBA for a cumulative period of more than one minute in any hour.
e. The noise standard plus 20 dBA for any period of time.

D. Noise Standards for Adjacent Mobile Noise Sources. Noise fr om mobile sources may affect adjacent properties adversely. When it does, the noise shall be mitigated for any new development to a level that shall not exceed the standards described in the following Table 83 -3 (reproduced herein as Table XIII-2).

Table XIII-2

COUNTY OF SAN BERNARDINO NOISE STANDARDS FOR ADJACENT MOBILE NOISE SOURCES

Land Use dBA Ldn (or CNEL)
Categories Uses Interior1 Exterior2
Residential Single and multi-family, duplex, mobile homes 45 603 Commercial
Hotel, motel, transient housing 45 603
Commercial retail, bank, restaurant 50 N/A
Office building, research and development,
professional offices 45 65
Amphitheater, concert hall, auditorium, movie theater 45 N/A Institutional/Public Hospital, nursing home, school classroom, religious institution, library 45 65
Open Space Park N/A 65
dBA = A-weighted decibel; Ldn = Day-Night Average Level; CNEL = Community Noise Equivalent Level 1 The indoor environment shall exclude bathrooms, kitchens, toilets, closets and corridors. 2 The outdoor environment shall be limited to:
• Hospital/office building patios
• Hotel and motel recreation areas
• Mobile home parks
• Multi-family private patios or balconies
• Park picnic areas
• Private yard of single-family dwellings
• School playgrounds
3 An exterior noise level of up to 65 dBA (or CNEL) shall be allowed provided exterior noise levels have been substantially mitigated through a reasonable application of the best available noise reduction technology, and interior noise exposure does not excee d 45 dBA (or CNEL) with windows and doors closed. Requiring that windows and doors remain closed to achieve an acceptable interior noise level shall necessitate the use of air conditioning or mechanical ventilation.

Source: San Bernardino County Development Code, Table 83-3

E. Increases in Allowable Noise Levels. If the measured ambient level exceeds any of the first four noise limit categories in Subsection (d)(2), above, the allowable noise exposure standard shall be increased to reflect the ambient noise level. If the ambient noise level exceeds the fifth noise limit category in Subsection (d)(2), above, the maximum allowable noise level under this category shall be increased to reflect the maximum ambient noise level.

F. Reductions in Allowable Noise Levels. If the alleged offense consist s entirely of impact noise or simple tone noise, each of the noise levels in Table 83-2 (reproduced herein as Table XIII-2) shall be reduced by 5 dBA.

G. Exempt Noise. The following sources of noise shall be exempt from the regulations of this Section:

1. Motor vehicles not under the control of the commercial or industrial use.

2. Emergency equipment, vehicles, and devices.

3. Temporary construction, maintenance, repair, or demolition activities between 7:00 a.m. and 7:00 p.m., except Sundays and Federal holidays.

83.01.090 Vibration.

A. Vibration Standard. No ground vibration shall be allowed that can be felt without the aid of instruments at or beyond the lot line, nor shall any vibration be allowed which produces a particle velocity greater than or equal 0.2 in/sec measured at or beyond the lot line.

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C. Exempt Vibrations. The following sources of vibration shall be exempt from the regulations of this Section.

1. Motor vehicles not under the control of the subject use.

2. Temporary construction, maintenance, repair, or demolition activities between 7:00 a.m. and 7:00 p.m., except Sundays and Federal holidays.

Notwithstanding other sections of this chapter, it is unlawful for any person to create, maintain or cause any ground vibration which is p erceptible without instruments at any point on any affected property adjoining the property on which the vibration source is located. For the purpose of this chapter, the perception threshold shall be presumed to be more than 0.05 in/sec RMS vertical veloc ity.

City of Chino Municipal Code

9.40.030 Designated noise zones.

The properties hereinafter described are assigned to the following noise zones:
• Noise Zone I: All single-, double- and multiple-family residential properties. • Noise Zone II: All commercial properties.
• Noise Zone III: All manufacturing or industrial properties.

9.40.040 Exterior noise standards.

The following noise standards, unless otherwise specifically indicated, shall apply to all residential property with a designated noise zone:

These criteria are given in terms of allowable noise levels for a given period of time at the residential property boundary. Higher noise levels are permitted during the day (7:00 a.m. to 10:00 p.m.) than the night (10:00 p.m. to 7:00 a.m.). Table XIII-3 shows the acceptable levels at residential land uses during the daytime and nighttime.

Table XIII-3
CITY OF CHINO EXTERIOR NOISE ORDINANCE CRITERIA FOR RESIDENTIAL PROPERTIES (ZONE 1)

Maximum Time of Exposure Noise Metric
Noise Level Not to Exceed
7:00 a.m. – 10:00 p.m. 10:00 p.m. -7:00 a.m.
30 min/hr L50 55 dBA 50 dBA
15 min/hr L25 60 dBA 55 dBA
5 min/hr L8.3 65 dBA 60 dBA
1 min/hr L1.7 70 dBA 65 dBA
Any period of time Lmax 75 dBA 70 dBA
min/hr = minutes per hour; dBA = A-weighted decibel
Source: Chino Municipal Code Section 9.40.040

Each of the noise limits specified here shall be reduced by 5 dBA for impulse or simple tone noises, or for noises consisting of speech or music; provided, however, that if the ambient noise level exceeds the resulting standard, the ambient shall be the standard.

It is unlawful for any person at any location within the incorporated area of the City to create any noise, or to allow the creation of any noise on property owned, lea sed, occupied or otherwise controlled by such person, which causes the noise level when measured on any other property, to exceed:

A. The noise standard for a cumulative period of more than 30 minutes in any hour; or B. The noise standard plus 5 dBA for a cumulative period of more than 15 minutes in any hour; or C. The noise standard plus 10 dBA for a cumulative period of more than five minutes in any hour; or D. The noise standard plus 15 dBA for a cumulative period of more than one minute in any hour; or E. The noise standard plus 20 dBA for any period of time.

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In the event the ambient noise level exceeds any of the first four noise limit categories above, the cumulative period applicable to said category shall be increased to reflect said ambient noise le vel. In the event the ambient noise level exceeds the fifth noise category, the maximum allowable noise level under said category shall be increased to reflect the maximum ambient noise level.

If the measurement location is on boundary between two differe nt noise zones, the lower noise level standard applicable to the noise zone shall apply.

If the intruding noise source is continuous and cannot be reasonably discontinued or stopped for a time period whereby the ambient noise level can be determined, the measured noise level obtained while the source is in operation shall be compared directly to the allowable noise level standards as specified respective to the measurement location's designated land use and for the time of the day the noise level is measured.

A. The reasonableness of temporarily discontinuing the noise generation by an intruding noise source shall be determined by the director or his/her duly authorized deputy for the purpose of establishing the existing ambient noise level at the measurement location.

9.40.060 Special Provisions.

D. Noise sources associated with or vibration created by construction, repair, remodeling or grading of any real property or during authorized seismic surveys, provided said activities do not take place outside the hours for construction as defined in Section 15.44.030 of this code, and provided the noise standard of 65 dBA plus the limits specified in Section 9.40.040(B) as measured on residential property and any vibration created does not endanger the public h ealth, welfare and safety.

9.40.070 Schools, churches, libraries, health care institutions – Special provisions.

It shall be deemed unlawful for any person to create any noise which causes the noise level at any school, hospital or similar health care institution, church or library while the same is in use, to exceed the noise standards specified in Section 9.40.040 prescribed for the assigned noise zone level, unreasonably interferes with the use of such institutions, or which unreasonably disturbs or annoys patients in a hospital, convalescent home or other similar health care institutions, provided conspicuous signs are displayed in three separate locations within one-tenth-mile of the institution or facility indicating a quiet zone.

9.40.110 Vibration

Notwithstanding other sections of this chapter, it is unlawful for any person to create, maintain or cause any ground vibration which is perceptible without instruments at any point on any affected property adjoining the property on which the vibr ation source is located. For the purpose of this chapter, the perception threshold shall be presumed to be more than 0.05 in/sec RMS vertical velocity.

City of Ontario Municipal Code
Sec. 5-29.04. Exterior noise standards.

(a) The following exterior nois e standards (shown in Table XIII-4), unless otherwise specifically indicated, shall apply to all properties within a designated noise zone.

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Table XIII-4

CITY OF ONTARIO EXTERIOR NOISE STANDARDS

Allowable Exterior Noise Level1 Allowed Equivalent Noise Level, Leq2 Noise Zone Type of Land Use 7:00 a.m. to 10:00 p.m. 10:00 p.m. to 7:00 a.m.

I Single-Family Residential 65 dBA 45 dBA
II Multi-Family Residential, Mobile Home Parks 65 dBA 50 dBA III Commercial Property 65 dBA 60 dBA
IV Residential Portion of Mixed Use 70 dBA 70 dBA
V Manufacturing and Industrial, Other Uses 70 dBA 70 dBA 1 If the ambient noise level exceeds the resulting standard, the ambient noise level shall be the standard. 2 Measurements for compliance are made on the affected property pursuant to Section 5-29.15.

Source: Ontario Municipal Code Section 5-29.04(a)

(b) It is unlawful for any person at any location within the incorporated area of the City to create noise, or to allow the creation of any noise on property owned, leased, occupied or otherwise controlled by such person, which noise causes the noise level, when measured at any location on any other property, to exceed either of the following:
(1) The noise standard for the applicable zone for any 15-minute period; and (2) A maximum instantaneous (single instance) noise level equal to the value of the noise standard plus 20 dBA for any period of time (measured using A-weighted slow response). (c) In the event the ambient noise level exceeds the noise standard, the maximum allowable noise level under such category shall be increased to reflect the maximum ambient noise level. (d) The Noise Zone IV standard shall apply to that portion of residential property falling within 100 feet of a commercial property or use, if the noise originates from that commercial property or use.
(e) If the measurement location is on a boundary between two different noise zones, the lower noise level standard applicable to the noise zone shall apply.

Sec. 5-29.06. Exemptions.

The following activities shall be exempted from the provisions of this chapter:
(a) Any activity conducted on public property, or on private property with the consent of the owner, by any public entity or its officers, employees, representatives, agents, subcontractors, permittees, licensees or lessees that the public entity has authorize d are exempt from the provisions of this chapter. This includes, without limitation, sporting and recreational activities that are sponsored, co-sponsored, permitted or allowed by the City or any school district within the City's jurisdictional boundaries. This also includes, without limitation, occasional outdoor gatherings, public dances, shows or sporting and entertain ment events, provided such events are conducted pursuant to an approval, authorization, contract, lease, permit or sublease by the approp riate public entity, specifically the planning commission or City Council;
(d) Noise sources associated with construction, repair, remodeling, demolition or grading of any real property. Such activities shall instead be subject to the provisions of Section 5-29.09; (e) Noise sources associated with construction, repair, remodeling, demolition or grading of public rights-of-way or during authorized seismic surveys.

Sec. 5-29.09. Construction activity noise regulations.

(a) No person, while engaged in con struction, remodeling, digging, grading, demolition or any other related building activity, shall operate any tool, equipment or machine in a manner that produces loud noise that disturbs a person of normal sensitivity who works or resides in the vicinity, or a Police or Code Enforcement Officer, on any weekday except between the hours of 7:00 a.m. and 6:00 p.m. or on Saturday or Sunday between the hours of 9:00 a.m. and 6:00 p.m.

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(b) No landowner, construction company owner, contractor, subcontractor, or employer shall permit or allow any person or persons working under their direction and control to operate any tool, equipment or machine in violation of the provisions of this section. (c) Exceptions.

1. The provisions of this section shall not apply to eme rgency construction work performed by a private party when authorized by the City Manager or his or her designee;

2. The maintenance, repair or improvement of any public work or facility by public employees, by any person or persons acting pursuant to a public works contract, or by any person or persons performing such work or pursuant to the direction of, or on behalf of, any public agency; provided, however, this exception shall not apply to the City, or its employees, contractors or agents, unless:
i. The City Manager or a department head determines that the maintenance, repair or improvement is immediately necessary to maintain public services, ii. The maintenance, repair or improvement is of a nature that cannot feasibly be conducted during normal business hours, or
iii. The City Council has approved project specifications, contract provisions, or an environmental document that specifically authorizes construction during hours of the day that would otherwise be prohibited pursuant to this section; and

3. Any construction that complies with the noise limits specified in Sections 5-29.04 or 5-29.05.

Sec. 5-29.11 Other public agency exceptions.

The provisions of this chapter shall not be construed to prohibit any work at different hours by or under the direction of any other public agency or public or private utility companies in cases of necessity or emergency.

City of Montclair Municipal Code

6.12.040 - Base ambient exterior noise levels.

All ambient noise measurements shall commence at the base ambient noise levels in decibels within the respective times and zones as follows in Table XIII-5.

Table XIII-5

CITY OF MONTCLAIR BASE AMBIENT EXTERIOR NOISE LEVELS

Zone Time Decibels
Residential 10:00 p.m. - 7:00 am. 45 dBA
Residential 7:00 a.m. - 10:00 p.m. 55 dBA
Commercial 10:00 p.m. - 7:00 am. 55 dBA
Commercial 7:00 a.m. - 10:00 p.m. 65 dBA
Industrial 10:00 p.m. - 7:00 am. 60 dBA
Industrial 7:00 a.m. - 10:00 p.m. 70 dBA
dBA = A-weighted decibel
Source: Montclair Municipal Code Section 6.12.040

6.12.050 - Maximum residential/nonresidential noise levels.

It is unlawful for any person within any zone to create any noise or allow the creation of any noise on the property owned, leased, occupied, or otherwise controlled by such person, which causes the noise level, when measured on the exterior of the propert y, to exceed the base ambient noise level as adjusted in Table XIII-6.

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Table XIII-6

CITY OF MONTCLAIR MAXIMUM RESIDENTIAL/NONRESIDENTIAL NOISE LEVELS

Noise Level Maximum Duration Period
Exceeded Level (BANL) 30 minutes in any hour
5—9 Dba above BANL 15 minutes in any hour
10—14 dBA above BANL five minutes in any hour
15—16 dBA above BANL one minute in any hour
16 dBA or greater above BANL Not permitted
BANL = base ambient noise level; dBA = A-weighted decibel Source: Montclair Municipal Code Section 6.12.050

6.12.060 - Exemptions.

The following activities shall be exempt from the provisions of this chapter:

D. Noise sources associated with construction, repair, remodeling or grading of any real property, provided said activities do not take place between the hours of 8:00 p.m. and 7:00 a.m. on any given day and provided that the Building Official determines that the public health and safety will not be impaired. Industrial or commercial construc tion or public improvements, not otherwise feasible except between these hours, may be approved on a limited, short -term basis, subject to the approval of the Director of Community Development.

6.12.100 – Specific noises prohibited.

Notwithstanding any provision of this chapter, the following specified acts are declared to be unlawful and a nuisance in violation of this chapter:

D. Machinery, Equipment, Fans and Air Conditioning. It is unlawful for any person to operate, cause to operate, or permit the o peration of any machinery, equipment, device, pump, fan, compressor, air conditioning apparatus, or similar mechanical device in any manner so as to create any noise which would cause the noise level at the property line of any property to exceed the ambient noise level by 5 dBA.

G. Exhaust. The discharge into the open air of the exhaust of any steam engine, stationary internal combustion engine, motorboat, or motor vehicle, except through a muffler device that effectively prevents loud or explosive noises therefrom.

Impact Analysis

a. Less Than Significant With Mitigation Incorporated – The proposed project footprint is located in areas with moderate -to-high background noise given the proximity to the local roadway system at any point within the project area, and at the State Street Water Treatment Facility site, the proposed project is located in a high background noise environment due to the proximity of the adjacent railroad. The San Bernardino Countywide Plan Existing Noise Contour Map and Countywide Plan Future Noise Contour Map as shown on Figure XIII -1 indicates that the proposed project is located within an area with a general noise level varying from less than 60 dBA CNEL to 70 CNEL at present, with greater noise levels projected to occur in the project area in the future. Noise levels at the State Street Facility vary due to the intermittent nature of the adjacent railroad. Noise levels at this location are as such due to th e proximity of the proposed project footprint to adjacent roadways , and Figure XIII-1 indicate that the background noise environment in the general project vicinity sometimes exceeds the normally acceptable exterior noise environment. The proposed project would develop a State Street Water Treatment Plant at the existing Well 14 and Reservoir 5 site, which is located approximately 800 feet from the nearest residential sensitive receptor when measured from the

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boundary of the State Street Facility site . The proposed project would also construct the proposed pipeline alignments within existing road rights of way , which traverse through areas containing residences adjacent to the roadways, and, as such, the exteriors of the nearest residences, which contain sensitive receptors, are located between 25 and 50 from the pipeline alignments at several points within the project footprint. Additionally, the project would install improvements at the Well 12 site, which is located adjacent to nearby sensitive receptors, including residents within 100 feet.

Short Term Noise
Exterior noise -generating construction activities will be restricted to the hours identified in the applicable City or County Municipal or Development Codes. Specifically, in the City of Montclair, construction would be limited to the hours of 7:00 a.m. and 8:00 p.m. on any given day; in the City of Chino within the hours of 7:00 a.m. and 8:00 p.m. Monday through Saturday; in Unincorporated San Bernardino County construction would be limited to between 7:00 a.m. and 7:00 p.m., except Sundays and Federal holidays. The limits on hours of construction would be enforced through the implementation of MM NOI-2, outlined below.

Since construction noise is of a temporary nature, the Cit ies and County do not require noise mitigation as construction carried out within the hours that have been deemed, as identified about by the respective Cities and County, exempt from regulation. Construction equipment generates noise that ranges between approximately 75 and 90 dBA at a distance of 50 feet. Refer to Table XIII-7, which shows construction equipment noise levels at 25, 50 and 100 feet from the noise source.

Table XIII-7

NOISE LEVELS OF CONSTRUCTION EQUIPMENT AT
25, 50 AND 100 FEET (in dBA Leq) FROM THE SOURCE

Equipment Noise Levels
at 25 feet
Noise Levels
at 50 feet
Noise Levels
at 100 feet
Earthmoving
Front Loader 85 79 73
Backhoes 86 80 74
Dozers 86 80 74
Tractors 86 80 74
Scrapers 91 85 79
Trucks 91 85 79
Material Handling
Concrete Mixer 91 85 79
Concrete Pump 88 82 76
Crane 89 83 77
Derrick 94 88 82
Stationary Sources
Pumps 82 79 70
Generator 84 78 72
Compressors 87 81 75
Other
Saws 84 78 72
Vibrators 82 76 70
Source: U.S. Environmental Protection Agency “Noise”

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Receptors located adjacent to the roadways in which the proposed pipeline alignment will be installed may experience increased noise levels during construction, but the proposed project will comply with the City and County restrictions on night -time construction activity. Therefore, through compliance with the various City and County jurisdiction noise standards, construction of the proposed project would not result in the generation of a substantial temporary or permanent noise levels in the vicinity of a project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies. However, contingency mitigation is provided below to reduce noise levels at residences and/or minimize or address complaints from local sensitive noise receptors. The short-term noise impacts associated with project construction activities are forecast to be less than significant through implementing the following measures. As construction activities may be a nuisance to nearby residents, the following mitigation is recommended:

NOI-1 The following construction noise control practices shall be implemented whilst constructing the proposed State Street Water Treatment Project within the entirety of the project footprint:
• Construction staging and activities shall be located in areas as far as practicable from sensitive receivers or in areas where receivers can be shielded from construction noise.
• Whenever practicable, construction activities shall be scheduled so as to avoid operating several pieces of equipment simultaneously. • All heavy-duty stationary construction equipment shall be placed so that emitted noise is directed away from the nearest sensitive receivers.

NOI-2 Construction shall be conducted during the hours identified as acceptable by the jurisdiction within which each construction activity takes place.

Throughout the entirety of the project footprint, construction between the hours of 7:00 a.m. and 6:00 p.m. Monday through Friday. Extended hours of construction and construction on weekends are allowable at various points within the project footprint depending on the jurisdiction as follows: in the City of Montclair, construction shall be limited to the hours of 7:00 a.m. and 8:00 p.m. on any given day; in the City of Chino within the hours of 7:00 a.m. and 6:00 p.m. Monday through Saturday, with no construction allowed on Sundays and federal holidays; in Unincorporated San Bernardino C ounty construction shall be limited to between 7:00 a.m. and 7:00 p.m., except Sundays and Federal holidays. The above limitations on construction hours shall apply in all cases except where a declared emergency exists.

NOI-3 The City shall establish a n oise complaint response program and shall respond to any noise complaints received for this project by measuring noise levels at the affected receptor site. If the noise level exceeds an Ldn of 60 dBA exterior or an Ldn of 45 dBA interior at the receptor , the City will implement adequate measures (which may include portable sound attenuation walls, use of quieter equipment, shift of construction schedule to avoid the presence of sensitive receptors, etc.) to reduce noise levels to the greatest extent feasible.

NOI-4 All construction equipment be operated with mandated noise control equipment (mufflers or silencers). Enforcement will be accom plished by random field inspections by City personnel during construction activities.

NOI-5 Equipment not in use for five minutes shall be shut off.

NOI-6 Equipment shall be maintained and operated such that loads are secured from rattling or banging.

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NOI-7 Construction employees shall be trained in the proper operation and use of equipment consistent with thes e mitigation measures, including no unneces - sary revving of equipment.

NOI-8 No radios or other sound equipment shall be used at this site unless required for emergency response by the contractor.

Long Term
The long term or permanent change in noise from the proposed State Street Water Treatment Project would be minimal, though it would vary between the different project components . Generally, pipelines are located below -ground and do not generate noise in and of themselves ; therefore, development of the pipeline alignments will not generate a ny routine noise in the long -term. The proposed Water Treatment Plant will introduce a new noise source at the State Street Facility site; however, this new noise would not be greater such that the nearest sensitive r eceptor would experience an increase in noise as a result of the proposed project, particularly given that the nearest residential sensitive receptor from the State Street Water Treatment Project site is located 800 feet from boundary of the project site. This is because the site is located in a highly industrial area adjacent to the railroad, and thus is located in a n existing high background environment . The proposed Well 12 site is located in a more sensitive area, as there are residences along the project boundary; however, the project does not propose any new sources of noise at this site; the existing Well 12 will be rehabilitated and improved, and placed within a new structure, thus minimizing the potential for the well pump to create a source o f new noise at nearby residences. A s stated above, the increase in noise at both the Well 12 and State Street Facility would not exceed City or County thresholds for exterior (or interior) noise. This is due to the fact that the noise generating activities that would result from the proposed project would be enclosed within structures that would minimize noise generation from operations of the project. Additionally, as stated above, the State Street Facility is located within an area with a general noise le vel of 60 dBA CNEL due to the proximity of the adjacent roadways and railroad. Furthermore, the Well 12 site is located within an area with a general noise level of 60- 70 dBA CNEL due to the proximity of the adjacent roadways.

Based on the existing noise levels in the area surrounding the project from nearby traffic, and due to the fact that the new noise generating activities will occur within enclosed setting s, operation of the proposed project would not result in the generation of a subst antial temporary or permanent noise levels in the vicinity of a project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies.

b. Less Than Significant Impact – Vibration is the periodic oscillation of a medium or object. The rumbling sound caused by vibration of room surfaces is called structure borne noises. Sources of groundborne vibrations include natural phenomena (e.g. , earthquakes, volcanic eruptions, sea waves, landslides) or human -made causes (e.g., explosions, machinery, traffic, trains, construction equipment). Vibration sources may be continuous or transient. Vibration is often described in units of velocity (inches per second), and discussed in decibel (VdB) units in order to compress the range of numbers required to describe vibration. Vibration impacts related to human development are generally associated with activities such as train operations, construction, and h eavy truck movements.

The FTA assessment states that in contrast to airborne noise, ground -borne vibration is not a common environmental problem. Although the motion of the ground may be noticeable to people outside structures, without the effects associated with the shaking of a structure, the motion does not provoke the same adverse human reaction to people outside. Within structures, the effects of ground- borne vibration include noticeable movement of the building floors, rattling of windows, shaking of items on shelves or hanging on walls, and rumbling sounds. FTA assessment further states that it is unusual for vibration from sources such as buses and trucks to be perceptible, even in locations close to major roads. However, some common sources of vi bration are trains, trucks on rough roads, and

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construction activities, such as blasting, pile driving, and heavy earth -moving equipment. The Federal Transit Association (FTA) guidelines identify a level of 80 VdB for sensitive land uses.

As the propose d project would be constructed within several jurisdictions —primarily within Unincorporated San Bernardino County and the City of Chino —the proposed project would be required to comply with the applicable regulations pertaining to vibration within the Jurisdiction at which construction occurs at a given point within the project footprint. The City of Montclair has not adopted vibration standards, as such compliance with the FTA thresholds would be applicable to construction within those jurisdictions. Within Unincorporated San Bernardino County, construction activities that take place between 7:00 a.m. and 7:00 p.m., except Sundays and Federal holidays are exempt for the County’s vibration standards. Similarly, in the City of Chino vibration created by construction, repair, remodeling or grading are exempt as long as construction takes place between the hours of 7:00 a.m. and 8:00 p.m. Monday through Saturday, with no construction allowed on Sundays and federal holidays, and provided the noise standard of 65 dBA plus the limits specified in Section 9.40.040(B) as measured on residential property and any vibration created does not endanger the public health, welfare and safety. Additionally, the City of Chino identifies that outside of any exempt construction standards, it is unlawful for any person to create, maintain or cause any ground vibration which is perceptible without instruments at any point on any affected property adjoining the property on which the vibration source is locat ed. For the purpose of this chapter, the perception threshold shall be presumed to be more than 0.05 in/sec RMS vertical velocity.

Due to the location of the State Street Facility, and the Well 12 site, and the lack of any sensitive receptors within a reasonable distance of the project sites, construction and operations at these sites will not expose people to generation of excessive groundborne vibration or groundborne noise levels.

Background vibration within the project footprint would generally result from the nearby railroad north of State Street at the State Street Facility, as well as cars and trucks travelling along the roadways in which the proposed pipeline alignments would be installed. The roadways within which the proposed pipelines would be installed are in some cases modestly traveled, but are generally moderate -to- heavily travelled given that they are major north -south, and east -west roadways within the project area. Groundborne vibration is normally perceptible to humans at approximately 65 VdB, while 75 VdB is the approximate dividing line between barely perceptible and distinctly perceptible.

Construction activity can result in varying degrees of groundborne vibration; in the short term, construction from installing the pipelines has th e potential to create some groundborne vibration to the nearest sensitive receptors at some sites within the project footprint. However, any short -term impacts to the nearest sensitive receptors would be considered less than significant through implementing the following mitigation measure:

NOI-9 During future initiation of construction activities with heavy equipment within 300 feet of occupied residences, vibration field tests shall be conducted at the nearest occupied residences upon receipt. To the extent feasible, if vibrations exceed 72 VdB, the construction activities shall be revised (smaller equipment, reduced activity) to reduce vibration below this threshold.

Additionally, implementation of MM NOI-2, which would limit the hours of construction to the applicable City or County that are exempt, in conjunction with the implementation of the above mitigation measure, the project would comply with the applicable City and County regulations pertaining to vibration , and would prevent significant impacts from occurring as a result of the implementation of the proposed pr oject. Therefore, impacts from project related vibration would be considered less than significant with implementation of mitigation. No further mitigation is required.

c. Less Than Significant Impact ‒ The nearest public airport is the Ontario International Airport, located approximately 3.3 miles east of the project. The Chino Airport is located at an even greater distance to the south of the proposed project site, and thus the proposed project footprint is not located within the Chino Airport Noise Contour. According to the San Bernardino Countywide Plan Airport Safety

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and Planning Areas Map (Figure XIII-2), the proposed project is not located within the boundaries of the any the Airport Noise Contours, though it is located within the Airport Safety Review Area. In Zone 6, Traffic Pattern Zone —the zone within which the project footprint is located) land uses accommodating very large assemblies of people —such as stadiums —should be avoided; and schools, hospitals, and nursing homes are limited. The proposed project would not conflict with any Airport Safety Review Area requirements, particularly given the type of project that has been proposed, and that once construction has been completed, the majority of the proposed project activities would occ ur inside structures, which would attenuate noise from the nearby airport and other noise intensive activities in the project vicinity from resulting in significant interior noise. Based on this information, the project will have a less than significant potential to expose people residing or working in the project area to excessive noise levels generated by nearby aircraft or airport operations. No private airstrips are located within the vicinity of the proposed project. Therefore, impacts under this issue are considered less than significant and no mitigation is required.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

XIV. POPULATION AND HOUSING: Would the
project:

a) Induce substantial population growth in an area,
either directly (for example, by proposing new homes
and businesses) or indirectly (for example, through
extension of roads or other infrastructure)?

b) Displace substantial numbers of existing people or
housing, necessitating the construction of replacement
housing elsewhere?

SUBSTANTIATION

a. Less Than Significant Impact – Implementation of the project will not induce substantial population growth in the area, either directly (for example, by proposing new homes and businesses) or indirectly (for example, through extension of roads or other infrastructure). The project is considered a vital infrastructure project because it proposes to improve the water quality of Wells 12 and 14 , which have observed 1,2,3 -TCP concentrations above the DDW DLR/MCL and have observed elevated nitrate levels that exceed the 10 mg/L -N DDW MCL. It is anticipated that co nstruction will require a temporary work force; however, this is short -term and with a maximum of about 30 employees will not induce substantial population growth. It is also anticipated that the City would require as many as 2 additional permanent employ ees as a result of the installation of the State Street Water Treatment Project. It is unknown whether the new employees will be drawn from the general area or will bring new residents to the project area. Relative to the total number residents of Unincorporated San Bernardino County —approximately 311,659 as of 201 8 according to the So uthern California Association of Governments (SCAG)3—and to the total number of residents in the City of Chino — approximately 86,757 as of 2018 according to SCAG4—an increase of the maximum 2 employees as new residents represents a minor increase in the a rea population. According to the SCAG Connect SoCal Demographics and Growth Forecast 5, the forecast 2045 population is anticipated to be 121,300 residents in the City of Chino and 353,100 residents in Unincorporated San Bernardino County. The potential for a minor increase of 2 individuals is not considered a substantial growth in population. Furthermore, though the proposed project is an infrastructure project, and the purpose of the proposed project is not to expand the City’s service area , it is to respond to the elevated concentrations of 1,2,3-TCP and nitrate within the City of Chino’s existing water supply. Thus, based on the type of project and the small increment of potential population the population generation associated with project implement ation, the proposed project will not induce substantial population growth either directly or indirectly.

b. No Impact – The proposed project will occur within sites containing existing wells and reservoirs or within existing road rights of way , neither of which contain housing or persons. No occupied residential homes are located within the project footprint ; therefore, implementation of the proposed project will not displace substantial numbers of existin g housing, necessitating the construction of replacement housing elsewhere. No impacts will occur; therefore, no mitigation is required.

3 https://scag.ca.gov/sites/main/files/file-attachments/unincareasanbernardinocounty_0.pdf?1606013790 4 https://scag.ca.gov/sites/main/files/file-attachments/chino_localprofile.pdf?1606014858 5 https://scag.ca.gov/sites/main/files/file-attachments/0903fconnectsocal_demographics-and-growth- forecast.pdf?1606001579

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

XV. PUBLIC SERVICES: Would the project result in
substantial adverse physical impacts associated with
the provision of new or physically altered governmental facilities, need for new or physically altered govern-
mental facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other
performance objectives for any of the public services:

a) Fire protection?

b) Police protection?

c) Schools?

d) Parks?

e) Other public facilities?

SUBSTANTIATION

a. Less Than Significant Impact – The proposed project area is generally served by both the Montclair Fire Department and the City of Ontario Fire Department due to its unique location within Unincorporated San Bernardino County and the City of Chino, with pi pelines that would be located within Unincorporated San Bernardino County, and the Cities of Chino , Ontario, and Montclair . The proposed project is located in close proximity to Montclair Fire Station 152, Ontario Fire Department Station 2, and Ontario Fire Department Station 4. The project only includes two new permanent above ground operational features—the replacement of the Well 12 structure, and the proposed State Street Water Treatment facility structure at the State Street Facility. The Ontario Fire Department provides fire protection and emergency medical services to the City of Ontario. It currently has ten stations, which are comprised of nine 4-man paramedic engine companies and three 4-man truck companies.

The Department respon ds to more than 20,000 calls per year or 55 calls per day , serving and protecting a city population of approximately 185,000 persons.6

The Montclair Fire Department responds to a wide variety of service call types. These include fires, ruptures/explosions, emergency medical incidents, rescues, hazardous conditions, public service assistance calls, good intent calls, false calls, severe weather incidents, and natural disasters. The proposed project footprint is located in proximity (by two or three miles) to Montclair Fire Station 152 at 10825 Monte Vista Avenue. According to the City of Montclair General Plan, there is a maximum three-minute response time is available throughout the planning area. The project site is within a distance where any future calls can be responded to within the Fire Department’s target response time.

The proposed Well 12 and State Street Facilities are currently served by adequate fire protection services. Therefore, the project will add minimal new demand for fire protection services because the proposed State Street Water Treatment Project will not require a permanent on-site staff to operate, and the use is not of a type that would create a substantial fire risk. The Cities of both Montclair and Ontario and County General Funds cover operational expenses, and the proposed p roject will continue to contribute to the general fund to offset this incremental demand for fire protection services. Any impacts are considered less than significant and no mitigation is required.

b. Less Than Significant Impact – The proposed project area is generally served by the Montclair Police Department (MPD) and the Ontario Police Department (OPD), which are a municipal law enforcement

6 http://www.ontarioca.gov/fire

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agency responsible for the delivery of a full range of law enforcement services. The MPD services a

5.5 square-mile community of roughly 37,000 residents. The MPD has evolved into a community - oriented organization employing 60 sworn officers today, with the police headquarters located at 4870 Arrow Highway , Montclair, CA 91763 . The Ontario Police Department (OPD) serves the City of Ontario. OPD Headquarters are located at 2500 S. Archibald Avenue in Ontario, CA 91761. OPD enforces local, state, and federal laws; pe rforms investigations and makes arrests; and responds to City emergencies. The project footprint is located within existing patrol routes for both MPD and OPD and future calls can be responded to within the identified priority call target response times. Given that the proposed project only has two above ground components, one of which is a replacement of an existing facility, at a site that are or will be fenced, a less than significant potential exists for demand for police protection or expansion of police infrastructure. The City (of both Montclair and Ontario) and County General Funds cover operational expenses. The project will not be required to contribute to the applicable City or County General Fund as the project proposes an infrastructure project that would provide a benefit to future and existing Chino residents . Any impacts are considered less than significant and no mitigation is required.

c. Less Than Significant Impact – The proposed project will utilize the existing State Street Facility (Well 14 and Reservoir 5) site to develop a Water Treatment Plant, and will install a new enclosure for Well

12. The associated infrastructure that will be developed as part of this project will be installed below ground or at existing Well 12 and State Street Facility sites. The project is not anticipated to generate any new direct demand for the area schools. The proposed project may place additional demand on school facilities, but such demand would be indirect and speculative as the proposed project would only create an indirect demand for schools as a result of the potential population increase that could arise from the 2 new employment positions . The project area is served by the Ontario -Montclair School District. The State of California requires a portion of the cost of construction of public schools to be paid through a fee collected on residential, commerci al, and industrial developments. The development impact fee mitigation program of the Ontario -Montclair School District adequately provides for mitigating the impacts of the proposed project in accordance with current state law , though the propose project is exempt from such fees because it is a water supply project that would extend vital infrastructure to customers within its service area . As such, n o mitigation is required.

Furthermore, given that the proposed project is not anticipated to permanently employ more than 2 persons as part of this project, the demand on school services would be minimal and well within the Ontario-Montclair School District’s capacity for additional students.

d. Less Than Significant Impact – The proposed project will utilize the existing State Street Facility site to develop a W ater Treatment Plant, and will modify the existing Well 12 site to include a new well enclosure. The associated infrastructure that will be developed as part of this project will be installed below ground or at existing State Street Facility or Well 12 sites . The project is not anticipated to generate any new direct demand for parks within the City or County, as project would have a minimal potential to induce substantial population growth within the area. The proposed project would not be required to contribute to Development Impact Fees (DIF) dedicated to parks because the proposed project would contribute to existing area infrastructure, and would not c ontribute to area demand for parks and recreation facilities. Furthermore, given that the proposed project is not anticipated to permanently employ more than 2 persons as part of this project, the increased demand for area parks would be minimal. Therefore, the proposed project will have a less than significant impact to parks and recreation facilities.

e. Less Than Significant Impact – Other public facilities include library and general municipal services.

Since the project will not directly induce substantial population growth, it is not forecast that the use of such facilities will substantially increase as a result of the proposed project. The proposed project would not be required to contribute to DIF dedicated to library and municipal services because the proposed project would contribute to existing area infrastructure, and would not contribute to area demand for library and municipal services. Furthermore, given that the proposed project is not anticipated to permanently employ more than 2 persons as part of this project, the increased demand

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for library service would be minimal. Therefore, the proposed project will have a less than significant impact to other public services.

Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

XVI. RECREATION:

a) Would the project increase the use of existing
neighborhood and regional parks or other recreational
facilities such that substantial physical deterioration of the facility would occur or be accelerated?

b) Does the project include recreational facilities or
require the construction or expansion of recreational
facilities which might have an adverse physical effect
on the environment?

SUBSTANTIATION

a. Less Than Significant Impact – As addressed in the discussion under XI V and XV(d) above, the proposed project does not include a use that would substantially induce population growth; as stated in the discussion under Population and Housing, the proposed project is not anticipated to employ new City personnel in an amount greater than 2 persons; however, it is unknown what portion of the employees will be new residents of the project area . In the Cities and County in and around the project footprint, new facilities contribut e to the local jurisdiction’s ability to provide needed public services and enhance p ublic access to those same service and systems. As the proposed project sites are government facilities, they are tax exempt, and therefore would not be subject to the payment of property tax that contributes to the City’s General Fund. Given that the proposed project consists of a W ater Treatment Plant within the existing State Street Facility site, and associated infrastructure within the existing Well 12 site and within roadways, the State Street Water Treatment Project is not anticipated to result in a substantial increase in the use of existing park and recreation facilities. Therefore, any impacts under this issue are considered less than significant. No mitigation is required.

b. No Impact – The proposed project would develop a Water Treatment Plant at the existing State Street Facility site and would develop associated pipeline alignments within adjacent roadways , as well as on site infrastructure and a well enclosure at Well 12. The only new above g round features of the proposed project will be located at the State Street Facility and Well 12 , which are both currently in use containing City of Chino water infrastructure. As such, with no recreational facilities located within the project footprint, the proposed project has no potential to include recreational facilities or require the construction or expansion of recreational facilities which might have an adverse physical effect on the environment. Thus, no impacts are anticipated under this issue. No mitigation is required.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

XVII. TRANSPORTATION: Would the project:

a) Conflict with a program, plan, ordinance or policy
addressing the circulation system, including transit,
roadway, bicycle and pedestrian facilities?

b) Conflict or be inconsistent with CEQA Guidelines
section 15064.3, subdivision (b)?

c) Substantially increase hazards due to a geometric
design feature (e.g., sharp curves or dangerous inter-
sections) or incompatible uses (e.g., farm equipment)?

d) Result in inadequate emergency access?

SUBSTANTIATION

a. Less Than Significant With Mitigation Incorporated – The proposed project is located within the Cities of Chino, and Montclair, as well as the County of San Bernardino . Though above ground components—the Water Treatment Plant and the Well 12 enclosure—are located within the County of San Bernardino or the City of Chino respectively. The County of San Bernardino Congestion Management Program (CMP) Traffic Study Guidelines have been utilized in the following analysis as the County overlaps with the entirety o f the project footprint . The County’s traffic study guidelines indicate that if a project generates fewer than 100 to 250 peak hour trips and contributes less than 50 peak hour trips to a CMP intersection, a formal traffic study is typically not required a s off-site improvements are assumed to be nominal for low traffic generating uses. As such, the proposed project is not anticipated to violate the County’s Traffic Study Guidelines due to the limited number of trips required to implement the proposed project (below the County’s Traffic Study Guidelines).

In the short -term, the proposed project will require the installation of pipelines within existing road rights-of-way. The roadways within which the pipelines will be installed are generally major roadways that are important to circulation within the area:

Preferred Alignments
• Phillips Boulevard between Well 12 and Vernon Avenue
• Vernon Avenue between Phillips Boulevard and State Street • State Street between Vernon Avenue and the State Street Facility • Benson Avenue between Mission Boulevard and the State Street Facility

Alternative Alignments
• Vernon Avenue between Phillips Boulevard and Mission Boulevard • Mission Boulevard between Vernon Avenue and Benson Avenue

The pipeline installation will require one lane to be closed to complete the installat ion of the various pipeline alignments; this will ensure that each roadway can still operate during construction.

However, the project will require implementation of a traffic management plan in order to comply with the Cities of Chino and Montclair and t he County of San Bernardino Master Plan of Roads and Circulation Plans, which will ensure adequate circulation within the area.

During construction, an estimated 30 roundtrips from construction worke rs would occur per day. A maximum of 30 roundtrips per day will occur to support construction efforts (i.e., delivery or removal of construction materials, etc.). This has a minor potential to create additional traffic on area roadways

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for the duration of construction. The construction workers are expected to arrive at and depart from each day’s work sites during a one -hour period at the start and end of the work day, respectively, while truck trips would be spread over the course of the work day. Both the worker trips and truck trips would be spread over the various roadways that provide access to the proposed project footprint.

These roadways include: W. State Street, Mission Boulevard, Benson Avenue, Vernon Avenue, Howard Street, Central Avenue, Phillips Boulevard, and others outside of the im mediate project footprint vicinity. For th e purpose of this assessment, this impact is considered to be less than significant. This is because even when large truck trips are assigned a passenger car equivalent (PCE) of three trips, the total number of a ll trips per day would be about 120 trips per day. As these trips would be spread throughout the day, and would not all occur during AM or PM peak hours, it is anticipated that the proposed project would not contribute an additional 50 peak hour trips per day at any area intersection . However, i mplementation of the project has the potential to conflict with a program, plan, ordinance or policy addressing the circulation system, including transit, roadway, bicycle and pedestrian facilities , but implementation of the following mitigation measure requiring a construction traffic management plan, would ensure that implementing the project would not result in a significant impact.

TRAN-1 The construction contractor will provide adequate traffic management resources, as determined by the City of Chino . The City shall require a construction traffic management plan for work in public roads that complies with the Work Area Traffic Control Handbook, or other applicable standard, to provide adequate traffic control and safety during excavation activities.

The traffic management plan shall be prepared and approved by the City prior to initiation of excavation or pipeline construction. At a minimum this plan shall include how to minimize the amount of time spent on construction activities; how to minimize disruption of vehicle and alternative modes of transport traffic at all times, but particularly during periods of high traffic volumes; how to maintain safe traffic flow on local streets affected by construction at all times, including through the use of adequate signage, protective devices, flag persons or police assistance to ensure that traffic can flow adequately during construction; the identification of alternative routes that can meet the traffic flow requirements of a specific area, including communication (signs, webpages, etc.) with drivers and neighbor- hoods where construction activities will occur; and at the end of each construction day roadways shall be prepared for continued utilization without any significant roadway hazards remaining.

TRAN-2 The City shall require that all disturbances to public roadways be repaired in a manner that complies with the Standard Specifications for Public Works Construction (green book) or other applicable County of San Bernardino standard design requirements.

The operation phase of the proposed project would require minimal new trips to the Well 12 site, as such visits would be on a scheduled maintenance or as needed basis, with the about 2 visits to the State Street Facility site per day as a result of onsite operationa l activities. Furthermore, given that the project sites are located within about 5 to 6 miles to the northwest of the City of Chino Services Yard where the Water Division office is located, the traffic on adjacent roadways as a result of well operations would be minimal. As such, operation of the proposed project would not conflict with a program, plan, ordinance or policy addressing the circulation system, including transit, roadway, bicycle and pedestrian facilities. Therefore, with implement ation of the above mitigation measure, implementation of the project would have a less than significant impact under this issue.

b. Less Than Significant Impact – The proposed project would install a new water treatment facility and associated infrastructure and improvements as part of the State Street Water Treatment Project . A VMT calculation is typically conducted on a daily or annual basis, for long -range planning purposes.

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As discussed under Response (a) above, construction vehicles on local roadways would be temporarily increased during project construction due to the presence of construction vehicles and equipment. Increases in VMT from construction would be short -term, minimal, and temporary. The duration of the potential significant impacts would be limited to the period of time needed to construct individual projects. As such, VMT standards, which are intended to monitor and address long -term transportation impacts resulting from future development, do not apply to temporary impacts associated with construction activities. Therefore, no construction impact associated with VMT per CEQA Guidelines Section 15064.3 would occur.

The proposed project would not cause substantial long-term/ongoing transportation effects, because proposed project facilitie s, once constructed, would only require visits to the site by no more than 2 employees daily, resulting in a maximum of about 2 daily roundtrips. The Governor’s Office of Planning and Research Technical Advisory on Evaluating Transportation Impacts in CEQ A (2018) states, “Projects that generate or attract fewer than 110 trips per day generally may be assumed to cause a less-than-significant VMT impact.” As such, the proposed project would generate less than 110 trips per day, which is the recommended scre ening threshold. Therefore, the proposed project would not result in a substantial addition of VMT per service population or induce additional roadway vehicle travel by increasing physical roadway capacity or adding new roadways to the network.

Therefore, no operational impact associated with VMT per CEQA Guidelines Section 15064.3 would occur.

Thus, development of the City’s State Street Water Treatment Project is not anticipated to result in significant impact related to vehicle miles travelled, and thus would not conflict or be inconsistent with CEQA Guidelines section 15064.3, subdivision (b). Impacts under this issue are considered less than significant.

c. Less Than Significant With Mitigation Incorporated – The project will temporarily alter exis ting roadways during construction of the proposed pipelines. However, this alteration will not create any hazards due to design features of incompatible uses. The proposed project would install pretreatment at each wellhead, a GAC water treatment system, an IX water treatment system, an 8,500-gallon brine waste sto rage tank, a 2,500-gallon softener waste storage tank, and up to about 22,480 LF of water transmission, brine, softener waste, and sewer waste pipeline . This effort will occur within existing rights-of-way within Phillips Boulevard, Vernon Ave, Mission Boulevard, State Street, and Benson Avenue. As stated under issue XVI I(a) above, the with the imp lementation of MMs TRAN-1 and TRAN-2 above, which require implementation of a construction traffic manage - ment plan, any potential increase in hazards due to design features or incompatible use will be considered less than significant in the short term. In the long term, no impacts to any hazards or incompatible uses in existing roadways are anticipated because once the pipeline s are constructed, the roadway wi ll be returned to its original condition, or better and the proposed Water Treatment Plant will be confined to the existing State Street Facility site, while the Well 12 improvements would be confined to that project site . Thus, any impacts are considered less than significant with implementation of mitigation. No additional mitigation is required.

d. Less Than Significant With Mitigation Incorporated – Please refer to the discussion under issue XVII(a) above. The proposed project will require closure of one lane within the roadway in which each pipeline segment will be installed. The proposed State Street Water Treatment Project would install pretreatment at each wellhead, a GAC water treatment syste m, an IX water treatment system, an 8,500-gallon brine waste storage tank, a 2,500 -gallon softener waste storage tank, and up to about 22,480 LF of water transmission, brine, softener waste, and sewer waste pipeline . This effort will occur within existing rights-of-way within Benson Phillips Boulevard, Vernon Ave, Mission Boulevard, State Street, and Benson Avenue. During construction, a potential exists for short-term hazards and constraints on both normal and emergency access within the affected area , especially due to the construction of the proposed pipeline alignment, as it will require partial lane closure within existing rights-of-way. There are no emergency access roadways located within the project footprint as shown on Figure IX -14, which depicts evacuation routes within the project area . Adequate emergency

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access will be provided along these routes throughout construction. Though closure of one lane will have a short-term impact on traffic, the implementation of mitigation measures TRAN-1 and TRAN-2 will ensure that impacts are reduced to a level of less than significant. No additional mitigation is required.

Potentially
Significant
Impact
Less Than
Significant with
Mitigation
Incorporated
Less Than
Significant
Impact
No Impact or
Does Not Apply

XVIII. TRIBAL CULTURAL RESOURCES: Would
the project cause a substantial change in the
significance of tribal cultural resources, defined in
Public Resources Code section 21074 as either a
site, feature, place, cultural landscape that is
geographically defined in terms of the size and
scope of the landscape, sacred place, or object with
cultural value to the California Native American
tribe, and that is:

a) Listed or eligible for listing in the California
Register of Historical Resources, or in a local
register of historical resources as defined in Public
Resources Code section 5020.1(k), or

b) A resource determined by the lead agency, in its
discretion and supported by substantial evidence, to
be significant pursuant to criteria set forth in sub-
division (c) of Public Resources Code Section
5024.1. In applying the criteria set forth in
subdivision (c) of Public Resources Code Section
5024.1, the lead agency shall consider the
significance of the resource to a California Native
American tribe.

SUBSTANTIATION

A Tribal Resources is defined in the Public Resources Code section 21074 and includes the following:

• Sites, features, places, cultural landscapes, sacred places, and objects with cultural value to a California Native American Tribe that are either of the following: included or determined to be eligible for inclusion in the California Register of Historical Resources or included in a local register of historical resources as defined in subdivision (k) of Section 5020.1; • A resource determined by the lead agency, in its discretion and supported by substantial evidence, to be significant pursuant to criteria set forth in subdivision (c) of Section 5024.1. In applying the criteria set forth in subdivision (c) of Section 5024.1 for the purpose of this paragraph, the lead agency shall consider the significance of the resources to a California American tribe;
• A cultural landscape that meets the criteria of subdivision (a) is a tribal cultural resource to the extent that the landscape is geographically defined in terms of the size and sc ope of the landscape;
• A historical resource described in Section 21084.1, a unique archaeological resource as defined in subdivision (g) of Section 21083.2, or a “non -unique archaeological resource” as defined in subdivision (h) of Section 21083.2 may also be a tribal resource if it conforms with the criteria of subdivision (a).

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Impact Analysis

a&b. Less Than Significant With Mitigation Incorporated – The City has been contacted by two Tribes under Assembly Bill (AB) 52: the Gabrieleño Band of Mission Ind ians and the Soboba Band of Luiseño Indians. The tribes were contacted to initiate the AB-52 process on October 29, 2021 to notify the tribes of the proposed project through mailed letters. During the 30 -day consultation period, the Gabrieleño Band of Mission Indians (Gabrieleño Band) was the only tribe to respond. The Gabrieleño Band requested that mitigation be incorporated to ensure protection of potential tribal cultural resources within the project site. As part of the consultation, the Gabrieleño Band has requested any and all information that the City may possess or has access to attain regarding the history of the subsurface soils that will be impacted as part this project’s ground disturbance activities. The key information requested is information about whether the “original” soils of the project lo cation have been “removed” and “replaced” by new soils (e.g., engineered, cleaned, imported) or have the original soils just been excavated, placed onsite and then “backfilled” into the same location. The City does not have a plethora of data on the soils within the large project footprint, given the expanse of area that must be excavated to install the proposed pipelines within roadways. In the absence of documentation, the Tribe has requested that protective measures shall be created and implemented, as such the following mitigation shall be implemented:

TCR-1 Retain a Native American Monitor Prior to Commencement of Ground -Disturbing Activities

A. The project applicant/lead agency shall retain a Native American Monitor from or approved by the Gabrieleño Band of Mission Indians – Kizh Nation. The monitor shall be retained prior to the commencement of any “ground - disturbing activity” for the subject project at all project locations (i.e., both on- site and any off -site locations that are included in the project descrip- tion/definition and/or required in connection with the project, such as public improvement work). “Ground - disturbing activity” shall in clude, but is not limited to, demolition, pavement removal, potholing, auguring, grubbing, tree removal, boring, grading, excavation, drilling, and trenching.

B. A copy of the executed monitoring agreement shall be submitted to the Lead Agency prior to th e earlier of the commencement of any ground -disturbing activity, or the issuance of any permit necessary to commence a ground - disturbing activity.

C. The monitor will complete daily monitoring logs that will provide descriptions of the relevant ground-disturbing activities, the type of construction activities performed, locations of ground - disturbing activities, soil types, cultural - related materials, and any other facts, conditions, materials, or discoveries of significance to the Tribe. Monitor logs wil l identify and describe any discovered TCRs, including but not limited to, Native American cultural and historical artifacts, remains, places of significance, etc., (collectively, tribal cultural resources, or “TCR”), as well as any discovered Native Ameri can (ancestral) human remains and burial goods. Copies of monitor logs will be provided to the project applicant/lead agency upon written request to the Tribe.

D. On-site tribal monitoring shall conclude upon the latter of the following (1) written confir mation to the Kizh from a designated point of contact for The project applicant/lead agency that all ground -disturbing activities and phases that may involve ground -disturbing activities on the project site or in connection with the project are complete; o r (2) a determination and written notification by the Kizh to The project applicant/lead agency that no future, planned construction activity and/or development/construction phase at the project site possesses the potential to impact Kizh TCRs.

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E. Upon di scovery of any TCRs, all construction activities in the immediate vicinity of the discovery shall cease (i.e., not less than the surrounding 50 feet) and shall not resume until the discovered TCR has been fully assessed by the Kizh monitor and/or Kizh arch aeologist. The Kizh will recover and retain all discovered TCRs in the form and/or manner the Tribe deems appropriate, in the including for educational, cultural and/or historic purposes.

TCR-2 Unanticipated Discovery of Human Remains and Associated Funerary Objects

A. Native American human remains are defined in PRC 5097.98 (d)(1) as an inhumation or cremation, and in any state of decomposition or skeletal completeness. Funerary objects, called associated grave goods in Public Resources Code Section 50 97.98, are also to be treated according to this statute.

B. If Native American human remains and/or grave goods discovered or recog - nized on the project site, then all construction activities shall immediately cease. Health and Safety Code Section 7050.5 dictates that any discoveries of human skeletal material shall be immediately reported to the County Coroner and all ground -disturbing activities shall immediately halt and shall remain halted until the coroner has determined the nature of the remains. If the coroner recognizes the human remains to be those of a Native American or has reason to believe they are Native American, he or she shall contact, by telephone within 24 hours, the Native American Heritage Commission, and Public Resources Code Section 5097.98 shall be followed.

C. Human remains and grave/burial goods shall be treated alike per California Public Resources Code section 5097.98(d)(1) and (2).

D. Construction activities may resume in other parts of the project site at a minimum of 200 feet away from discovered human remains and/or burial goods, if the Kizh determines in its sole discretion that resuming construction activities at that distance is acceptable and provides the project manager express consent of that determination (along with a ny other mitigation measures the Kizh monitor and/or archaeologist deems necessary). (CEQA Guidelines Section 15064.5(f).)
E. Preservation in place (i.e., avoidance) is the preferred manner of treatment for discovered human remains and/or burial goods. An y historic archaeological material that is not Native American in origin (non -TCR) shall be curated at a public, non-profit institution with a research interest in the materials, such as the Natural History Museum of Los Angeles County or the Fowler Museum , if such an institution agrees to accept the material. If no institution accepts the archaeological material, it shall be offered to a local school or historical society in the area for educational purposes.

F. Any discovery of human remains/burial goods shall be kept confidential to prevent further disturbance.

TCR-3 Procedures for Burials and Funerary Remains:

A. As the Most Likely Descendant (MLD), the Koo -nas-gna Burial Policy shall be implemented. To the Tribe, the term “human remains” encompasse s more than human bones. In ancient times, as well as historic times, Tribal Traditions included, but were not limited to, the preparation of the soil for burial, the burial of funerary objects with the deceased, and the ceremonial burning of human remains.

B. If the discovery of human remains includes four or more burials, the discovery location shall be treated as a cemetery and a separate treatment plan shall be created.

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C. The prepared soil and cremation soils are to be treated in the same manner as bone fragments that remain intact. Associated funerary objects are objects that, as part of the death rite or ceremony of a culture, are reasonably believed to have been placed with individual human remains either at the time of death or later; other items made exclusively for burial purposes or to contain human remains can also be considered as associated funerary objects. Cremations will either be removed in bulk or by means as necessary to ensure complete recovery of all sacred materials.

D. In the case where discovered human remains cannot be fully documented and recovered on the same day, the remains will be covered with muslin cloth and a steel plate that can be moved by heavy equipment placed over the excavation opening to protect the remai ns. If this type of steel plate is not available, a 24-hour guard should be posted outside of working hours. The Tribe will make every effort to recommend diverting the project and keeping the remains in situ and protected. If the project cannot be diverted, it may be determined that burials will be removed.

E. In the event preservation in place is not possible despite good faith efforts by the project applicant/developer and/or landowner, before ground -disturbing activities may resume on the project site, the landowner shall arrange a designated site location within the footprint of the project for the respectful reburial of the human remains and/or ceremonial objects.

F. Each occurrence of human remains and associated funerary objects will be stored using opaque cloth bags. All human remains, funerary objects, sacred objects and objects of cultural patrimony will be removed to a secure container on site if possible. These items should be retained and reburied within six months of recovery. The site of reburial/repatriation shall be on the project site but at a location agreed upon between the Tribe and the City at a site to be protected in perpetuity. There shall be no publicity regarding any cultural materials recovered.

G. The Tribe will work closely with the project’s qualified archaeologist to ensure that the excavation is treated carefully, ethically and respectfully. If data recovery is approved by the Tribe, documentation shall be prepared and shall include (at a minimum) detailed descript ive notes and sketches. All data recovery data recovery -related forms of documentation shall be approved in advance by the Tribe. If any data recovery is performed, once complete, a final report shall be submitted to the Tribe and the NAHC. The Tribe does NOT authorize any scientific study or the utilization of any invasive and/or destructive diagnostics on human remains.

The above mitigation measures will ensure that a Native American monitor is available to monitor the site and to recover unearthed tribal cultural resources, and ultimately to ensure appropriate treatment of such resources, which is sufficient to ensure protection of such resources by the Gabrieleño Band and City standards. Furthermore, the above mitigation measures would ensure appropriat e procedures are followed in the event of the unanticipated discovery of human remains and associated funerary objects, including procedures for burials and funerary remains treatment. Ultimately, the implementation of the above measures would prevent sign ificant adverse impacts to tribal cultural resources, and impacts under this issue are considered less than significant with mitigation. No further mitigation is required beyond that which was identified under Section V, Cultural Resources, above.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

XIX. UTILITIES AND SERVICE SYSTEMS: Would the
project:

a) Require or result in the relocation or construction of new or expanded water, wastewater treatment, or
stormwater drainage, electric power, natural gas, or
telecommunications facilities, the construction or
relocation of which could cause significant
environmental effects?

b) Have sufficient water supplies available to serve the project and reasonably foreseeable future development
during normal, dry and multiple dry years?

c) Result in a determination by the wastewater treat-
ment provider which serves or may serve the project
that it has adequate capacity to serve the project's
projected demand in addition to the provider's existing commitments?

d) Generate solid waste in excess of State or local
standards, or in excess of the capacity of local
infrastructure, or otherwise impair the attainment of
solid waste reduction goals?

e) Comply with federal, state, and local management
and reduction statutes and regulations related to solid waste?

SUBSTANTIATION

a. Water
Less Than Significant Impact – The proposed State Street Water Treatment Project is located within the Cities of Chino and Montclair, and the County of San Bernardino . The project in and of itself will result in construction of new water systems that would allow the City to reduce levels of 1,2,3-TCP, perchlorate, and nitrate to acceptable DDW levels. The entirety of the project would not result in any significant environmental effects. The project will not substantially increase the amount of water available to City of Chino customers, but it will expand the infrastructure from Well 12 to a new water treatment facility at the Well 14 and Reservoir 5 site where the proposed State Street Water Treatment facility will be located, at which the raw water will be treated to reduce levels of 1,2,3-TCP, perchlorate, and nitrate to acceptable DDW levels. The proposed project is considered a vital infrastructure project that would provide the City ’s customers with water containing contaminant levels acceptable to the DDW. Therefore, development of the State Street Water Treatment Project would not result in a significant environmental effect related to the relocation or construction of new or expanded water facilities. Impacts are less than significant.

Wastewater
Less Than Significant Impact – The proposed State Street Water Treatment Project would develop a Water Treatment Plant and associated infrastructure that would reduce levels of 1,2,3-TCP, perchlorate, and nitrate to accepta ble DDW levels. The pipeline alignments associated with the proposed project would be located below ground, and would not require access to restroom facilities; however, the Water Treatment Plant would require new restroom facilities. Additionally, the proposed project will require installation of brine line, softener waste, and sewer waste pipeline . The Inland Empire Brine Line is a pipeline that was constructed to protect the Santa Ana River Watershed from desalter concentrate and various saline wastes. Organizations whose processes create high -saline

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waste that does not qualify for use, reclamation or return to the region through the municipal sewer system domestic-treatment plants, but does qualify for ocean discharge, can use the brine line to transport the waste. The brine pipeline carries the waste directly to specially equipped treatment plants operated by the County Sanitation Districts of Los Angeles County’s sewer system. The Non- Reclaimable Wastewater System (NRWS) and the County Sanitation Districts of Los Angeles County have enough capacity to accommodate the additional flows. As such, t he installation of the brine pipeline would not result in a significant impact as a result of implementation of the proposed project.

Furthermore, the proposed sewer connection would be to the City of Montclair wastewater collection system, which is treated by the Inland Empire Utilities Agency (IEUA), and given the relatively minimal amount of waste that would be disposed of by the onsi te restroom facilities, the proposed project would be served within the existing capacities of IEUA’s wastewater treatment systems. Therefore, development of the State Street Water Treatment Project would not result in a significant environmental effect re lated to the relocation or construction of new or expanded wastewater facilities. Impacts are less than significant.

Stormwater
Less Than Significant Impact – The surface runoff from the site, nonpoint source storm water runoff, will be managed in accor dance with the WQMP as discussed in the Hydrology and Water Quality Section (Section X) of this Initial Study. The onsite drainage will capture the incremental increase in runoff from the project site associated with project development at each of the proposed project sites.

Runoff will be managed onsite through a stormwater management system. During GAC changeout, GAC backwash water will be filtered through bag filters and sent to the sewer via a new pipeline connection. As such, surface water will be adequately managed on the State Street Facility and Well 12 sites. The roadways within which the pipeline will be installed will be returned to their original condition upon completion of the placement of each section of pipeline. The roadways will generate essentially the same amount of stormwater as they do at present because no expansion of roadway or change in drainage patterns are anticipated. Conveyance of stormwater to drainage alignments and storm drains within these roadways will remain intact and unchanged once construction has been completed. Therefore, development of the State Street Water Treatment Project would not result in a significant environmental effect related to th e relocation or construction of new or expanded stormwater facilities. Impacts are less than significant.

Electric Power
Less Than Significant Impact – The existing electrical services are by Southern California Edison (SCE) and at both the State Street Facility and the Well 12 Facility, the primary service is routed underground from a utility pole near the site entrance to a pad mounted utility transformer, which steps the voltage down to 480/277VAC, 3 -phase. Updated electrical facilities will be require d upon installation of the new Well 12 pump, enclosure and related facilities, and at the State Street Water Treatment site. A new 1000kVA (preliminary) pad -mounted utility transformer shall be provided by Southern California Edison (SCE) to supply suffici ent power to the new distribution system.

Transformer size shall be coordinated and finalized with SCE during final design. SCE has indicated that it has available capacity to supply to project with the installation of the new transformer. As such, though the proposed project will install new electrical power facilities within the project sites , the development of such facilities in support of the State Street Water Treatment Project would not result in a significant environmental effect. Impacts under this issue are considered less than significant.

Natural Gas
No Impact – Development of the State Street Water Treatment Project would not require installation of natural gas. Therefore, the project would not result in a significant environmental effect related to the relocation or construction of new or expanded natural gas facilities. No impacts are anticipated.

Telecommunications
No Impact – Development of the State Street Water Treatment Project would require connection to wireless internet service and phone service. This connection is available at the project site, so the development of onsite infrastructure to connect to such systems would b e required. The connection

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to telecommunication systems would not result in a significant environmental effect. Therefore, the project would not result in a significant environmental effect related to the relocation or construction of new or expanded telec ommunication facilities. Impacts under this issue are considered less than significant.

b. Less Than Significant Impact – Please refer to issue X(b), Hydrology and Water Quality, above. The project will be supplied with water by the City of Chino . The proposed project would not require the provision of expanded water supply to operate the proposed State Street Water Treatment Plant, though construction of the site and of the pipeline alignment would require a temporary supply of water. The project proponent, the City of Chino, supplies water to the area. The City of Chino’s water supply sources include: groundwater pumped from the Chino Basin; treated groundwater from the Chino Basin produced by Chino Basin Desalter Authority; imported surface water from Metropolitan Water District of Southern California (MWD) through IEUA, treated and purchased through Water Facilities Authority ( WFA); and recycled water purchased from Inland Empire Utilities Agency. The proposed project may require approximately 5,000 GPD of water for a period of about 60 days during construction to control fugitive dust . This temporary increase in water demand for construction purposes is considered less than significant because the project will be conducted within the existing City entitlements to potable water. As stated under issue X(b), above, a ccording to the City’s 2020 UWMP, the City’s share of the Operating Safe Yield of Chino Basin groundwater is 7.357 percent.

Over the past five years, the City has produced 4,308 acre -feet-per-year (AFY) to 5,162 AFY, with an average of 4,939 AFY from the Chino Basin. The proposed project would enable the City to treat about 1,600 AFY from the Wells 12 and 14 combined supplies. T he proposed project would not require greater water supplies from the aquifer in order to operate, particularly because the proposed project would treat a comparable amount of water for potable use to that which the City of Chino supplies at present, and would operate within the Operating Safe Yield of the Chino Basin. Based on the limited and short -term demand for potable water during construction of the proposed pipeline replacement project, sufficient water supplies are available to serve the project, as indicated in the 2020 UWMP for the City of Chino. Impacts under this issue are considered less than significant and no mitigation is required.

c. Less Than Significant Impact – Please refer to the discussion under XIX(a) above. The State Street Water Treatment site requires the installation of restroom facilities; construction will require portable toilets that will be handled by the provider of such facilities . Additionally, the proposed project will require installation of brine line, softener waste, a nd sewer waste pipeline . The NRWS consists of three trunk lines: NRWS and Etiwanda Wastewater Line (EWL) on the Agency’s north service area convey the wastewater to the County Sanitation Districts of Los Angeles County’s sewer system , which has enough capa city to accommodate the additional brine and softener waste flows. The NRWS has a current flow of 20,000 gallons per day (GPD) . The proposed project would contribute less than 1,000 gpd of brine to the NRWS. The NRWS capacity is 4.6 MGD leaving more than a vast majority of the system’s capacity available for use by other entities in the region. As such, the installation of the brine pipelines would not result in an exceedance of wastewater treatment provider capacity. Furthermore, the proposed sewer connection would be to the City of Montclair wastewater collection system, which is treated by the IEUA, and given the relatively minimal amount of waste that would be disposed of by the onsite restroom facilities, the proposed project would be served within the existing capacities of IEUA’s wastewater treatment systems. Therefore, development of the State Street Water Treatment Project would not result in a significant environmental effect related to the relocation or construction of new or expanded wastewater facilities. Impacts are less than significant.

d. Less Than Significant Impact – The project a is served by Burrtec Waste Industries, which provides trash, recycling, and some street sweeping/bulky item pickup services to its customers. The nearest landfills to the project area are the Mid-Valley Sanitary Landfill and the El Sobrante Landfill. The location, closure date, daily permitted capacity, and remaining permitted capacity of these landfill s can be found in Table XIX-1.

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Table XIX-1

LANDFILLS IN PROXIMITY TO THE PROJECT SITE

Facility Name Address Closure
Date
Daily
Permitted Capacity
(tons/day)
Remaining
Permitted Capacity
(cubic yards)
Mid-Valley Sanitary
Landfill
2390 Alder Ave,
Rialto, CA 92377 4/1/2045 7,500 61,219,377
as of 06/2019
El Sobrante Landfill 10910 Dawson Canyon Rd,
Corona, CA 92883 1/1/2051 16,054 143,977,170
as of 4/2018
SOURCE: California Department of Resources Recycling and Recovery, Solid Waste Information System (SWIS), 2021 https://www2.calrecycle.ca.gov/SolidWaste/SiteActivity/Details/2280?siteID=2402 https://www2.calrecycle.ca.gov/SolidWaste/SiteActivity/Details/1880?siteID=2662

The proposed project will remove concrete and material from the Water Treatment Plant and Well 12 sites to install the new infrastructure related to the State Street Water Treatment Project. The project will also result in construction waste from the removal of asphalt, concrete, and similar materials within the roadways in which the pipeline alignment will be installed . Based on the scale of the materials requiring removal, which will occur over a period several days or weeks, the waste that developing the proposed project would generate would not exceed either the daily permitted capacity or overall permitted capacities of nearby landfills. There is adequate capacity at the nearest landf ill as well as in other landfills that serve the area (Mid Valley Sanitary Landfill, El Sobrante Landfill, etc.).

Any hazardous materials collected on the project site during construction of the project will be transported and disposed of by a permitted and licensed hazardous materials service provider.

The proposed project is anticipated to generate minimal solid waste during operation because it will not require a substantial staff at the project site. According to the CalRecycle Solid Waste Generation Rates, Public/Institutional uses generate 0.007 pound per square foot per day. As such, given that the project would develop an office area of about 748 square feet, the proposed project would generate 5.236 pounds of solid waste per day, equal to about 0.96 tons per year. Considering the availability of landfill capacity and the minimal amount of solid waste generation from the proposed project during both construction and operations, project solid waste dis posal needs can be adequately met without a significant impact on the capacity of the nearest landfills. As such, a ny impacts under this issue are considered less than significant. No mitigation is required.

e. Less Than Significant With Mitigation I ncorporated – All collection, transportation, and disposal of any solid waste generated by the proposed project is required to comply with all applicable federal, state, and local regulations. As previously stated, solid waste produced in the project is collected and transported by Burrtec Waste Industries. The area is served by several nearby landfills, though the closest is the Mid Valley Landfill in Rialto and the El Sobrante Landfill in Corona, which, as stated under issue XIX(d) above, have adequate capacity to serve the project. Additionally, any hazardous materials collected on the project site during either construction or operation of the project will be transported and disposed of by a permitted and licensed hazardous materials service provider, as stated under issue IX, Hazards and Hazardous Materials above. The contract for this project will require that concrete, asphalt and base material be recycled by grinding, which allows reuse of these materials. All metals, woods and equipment that are reusable shall be salvaged and recycled.

Thus, due to the small size of this project and the limited amount of wastes that will be generated, potential impacts to the waste disposal systems are considered less than significant. To further reduce potential less than significant impacts, the following mitigation measure shall be implemented:

UTIL-1 The contract with demolition and construction contractors shall include the requirement that all materials that can feasibly be recycled shall be salvaged and recycled. This includes but not limited to wood, metals, concrete, road base and asphalt. The contractors shall submit a recycling plan to the City for

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review and approval prior to the construction of demolition/construction activities.

Therefore, with the above mitigation measure, the project is expected to comply with all regulations related to solid waste under federal, state, and local statutes. No further mitigation is necessary.

Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

XX. WILDFIRE: If located in or near state
responsibility areas or lands classified as very high fire hazard severity zones, would the project:

a) Substantially impair an adopted emergency
response plan or emergency evacuation plan?

b) Due to slope, prevailing winds, and other factors,
exacerbate wildfire risks, and thereby expose project
occupants to pollutant concentrations from a wildfire or the uncontrolled spread of wildfire?

c) Require the installation or maintenance of
associated infrastructure (such as roads, fuel breaks,
emergency water sources, power lines or other utilities) that may exacerbate fire risk or that may result in
temporary or ongoing impacts to the environment?

d) Expose people or structures to significant risks,
including downslope or downstream flooding or
landslides, as a result of runoff, post-fire slope
instability, or drainage changes?

SUBSTANTIATION

a-d. No Impact – According to the San Bernardino Countywide Plan Fire Hazard Severity Zones Map of the project area, the proposed project is not located within a high or very high fire hazard severity zone (Figure IX-15). The proposed project area is located in an urban a rea removed from the high fire hazard areas that are located adjacent to the San Gabriel Mountains. The fire threat throughout most of the valley region that is situated at a great distance from nearby mountains experiences moderate wildland fire risk . T he proposed water treatment facility development would not expose people or structures to a wildland fire as they are not located in the vicinity of the high wildland fire hazard area. Therefore, given that the propose project sites are located outside of a very high fire hazard severity zone, and the nature of the proposed project as a water treatment facility development project that would expand the community’s access to water that could be used for fire flow, no impacts under these issues are anticipated. No mitigation is required under these issues.

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Potentially
Significant Impact

Less Than
Significant with
Mitigation
Incorporated

Less Than
Significant Impact

No Impact or
Does Not Apply

XXI. MANDATORY FINDINGS OF SIGNIFICANCE:

a) Does the project have the potential to substantially degrade the quality of the environment, substantially
reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal
community, substantially reduce the number or restrict
the range of a rare or endangered plant or animal or
eliminate important examples of the major periods of
California history or prehistory?

b) Does the project have impacts that are individually
limited, but cumulatively considerable? ("Cumulatively
considerable" means that the incremental effects of a
project are considerable when viewed in connection
with the effects of past projects, the effects of other current projects, and the effects of probable future
projects)?

c) Does the project have environmental effects which
will cause substantial adverse effects on human
beings, either directly or indirectly?

SUBSTANTIATION

The analysis in this Initial Study and the findings reached indicate that the proposed project can be implemented without causing any new project specific or cumulatively considerable unavoidable significant adverse environmental impacts. Mitigation is re quired to control potential environmental impacts of the proposed project to a less than significant impact level. The following findings are based on the detailed analysis of the Initial Study of all environmental topics and the implementation of the mit igation measures identified in the previous text and summarized following this section.

a. Less Than Significant With Mitigation Incorporated – The project has no potential to cause a significant impact to any biological or cultural resources. The project has been identified as having no potential to degrade the quality of the natural environment, substantially reduce habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community, or reduce the number or restrict the range of a rare or endangered plant or animal. Based on the historic disturbance of the project footprint, especially given that the Water Treatment Plant sit e currently contains the existing Well 14 and Reservoir 5 , and the Well 12 site contains the well and reservoirs, all of which support the City water service, and that the remainder of t he project will occur within existing road rights -of-way, the potential for impacting biological resources is low; however, mitigation has been identified to protect nesting birds.

The cultural resources evaluation concluded that the project footprint does not contain historic resources, and as such, no impacts are anticipated. To ensure that any accidentally exposed subsurface cultural resources are properly handled, contingency mitigation measures will be implemented. With incorporation of project mitiga tion measures all biology and cultural resource impacts will be reduced to a less than significant level.

b. Less Than Significant With Mitigation Incorporated – The project has nine (9) potential impacts that are individually limited, but may be cumulati vely considerable. The issues of Aesthetics, Air Quality, Biological Resources, Cultural Resources, Energy, Geology and Soils, Hazards and Hazardous Materials, Hydrology and Water Quality, Noise, Transportation , and Utilities & Service Systems require the implementation of mitigation measures to reduce impacts to a less than significant level

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and ensure that cumulative effects are not cumulatively considerable. The project is not considered growth-inducing as defined by State CEQA Guidelines , as it would no t result in any new residents either directly, through the creation of housing, or indirectly, through the creation of a substantial number of jobs. These issues require the implementation of mitigation measures to reduce impacts to a less than significant level and ensure that cumulative effects from the proposed project are not cumulatively considerable. All other environmental issues were found to have no significant impacts without implementation of mitigation. The potential cumulative environmental effects of implementing the proposed project have been determined to be less than considerable and thus, the project’s contribution to significant cumulative impacts would be less than significant.

c. Less Than Significant With Mitigation Incorporated – The project will achie ve long-term community goals by providing a potable water with reduced 1,2,3-TCP, perchlorate, and nitrate at levels acceptable to DDW. The short -term impacts associated with the project, which are mainly construction-related impacts , are less than significant with mitigation, and the proposed project is compatible with long -term environmental protection. The issues of Air Quality, Geology and Soils, Hazards and Hazardous Materials, and Noise require the implementation of mitigation m easures to reduce human impacts to a less than significant level. All other environmental issues were found to have no significant impacts on humans without implementation of mitigation. The potential for direct human effects from implementing the propos ed project have been determined to be less than significant.

Conclusion

This document evaluated all CEQA issues contained in the latest Initial Study Checklist form. The evaluation determined that either no impact or less than significant impacts would be associated with the issues of Agricultural and Forestry Resources, Greenhouse Gas Emissions, Land Use and Planning, Mineral Resources, Population/Housing, Public Services, Recreation , and Wildfire . The issues of Aesthetics, Air Quality, Biological Resources, Cultural Resources, Energy, Geology and Soils, Hazards and Hazardous Materials, Hydrology and Water Quality, Noise, Transportation, and Utilities & Service Systems require the implementation of mitigation measures to reduce impacts to a less than s ignificant level. The required mitigation has been proposed in this Initial Study to reduce impacts for these issues to a less than significant impact.

Based on the fin dings in this Initial Study, the City of Chino proposes to adopt a Mitigated Negative Declaration (MND) for the City of Chino State Street Water Treatment Project. A Notice of Intent to Adopt a Mitigated Negative Declaration (NOI) will be issued for this project by the City of Chino. The Initial Study and NOI will be circulated for 30 days of public comment because this project does involve state agencies as either a responsible or trustee agency. At the end of the 30-day review period, a final MND package will be prepared and it will be reviewed by the City of Chino . The City will hold a future hearing for project adoption, the date for which has not yet been determined. If you or your agency comments on the MND/NOI for this project, you will be notified about the meeting date in accordance with the requirements in Section 21092.5 of CEQA (statute).

__________

Note: Authority cited: Sections 21083 and 21083.05, Public Resources Code. Reference: Section 65088.4, Gov. Code; Sections 21080(c), 21080.1, 21080.3, 21083, 21083.05, 21083.3, 21093, 21094, 21095, and 21151, Public Resources Code; Sundstrom v.

County of Mendocino,(1988) 202 Cal.App.3d 296; Leonoff v. Monterey Board of Supervisors , (1990) 222 Cal.App.3d 1337; Eureka Citizens for Responsible Govt. v. City of Eureka (2007) 147 Cal.App.4th 357; Protect the Historic Amador Waterways v. Amador Water Agency (2004) 116 Cal.App.4th at 1109; San Franciscans Upholding the Downtown Plan v. City and County of San Francisco (2002) 102 Cal.App.4th 656.

Revised 2019
Authority: Public Resources Code sections 21083 and 21083.09 Reference: Public Resources Code sections 21073, 21074, 21080.3.1, 21080.3.2, 21082.3/ 21084.2 and 21084.3

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SUMMARY OF MITIGATION MEASURES

Aesthetics

AES-1 A facilities lighting plan shall be prepared for both project sites and shall demonstrate that glare from operating and safety night lights t hat may create light and glare affecting adjacent occupied property are sufficiently shielded to prevent light and glare from spilling into occupied structures or rail corridor. This plan shall specifically indicate that the lighting doesn’t exceed

1.0 lumen at the nearest residence or the rail corridor to any lighting located within the project footprint. This plan shall be implemented by the City to minimize light or glare intrusion onto adjacent properties.

Air Quality

AQ-1 Fugitive Dust Control. The following measures shall be incorporated into Project plans and specifications for implementation:
• Apply soil stabilizers or moisten inactive areas.
• Water exposed surfaces as needed to avoid visible dust leaving the con struction site (typically 2-3 times/day).
• Cover all stock piles with tarps at the end of each day or as needed. • Provide water spray during loading and unloading of earthen materials. • Minimize in-out traffic from construction zone.
• Cover all trucks hauling dirt, sand, or loose material and require all trucks to maintain at least two feet of freeboard.
• Sweep streets daily if visible soil material is carried out from the construction site.

This measure shall be implemented during construction, and shall be included in the construction contract as a contract specification.

AQ-2 Exhaust Emissions Control. The following measures shall be incorporated into Project plans and specifications for implementation:
• Utilize off -road construction equipment that has met or exceeded the maker’s recommendations for vehicle/equipment maintenance schedule. • Contactors shall utilize Tier 4 or better heavy equipment. • Enforce 5-minute idling limits for both on-road trucks and off-road equipment.

Biological Resources

BIO-1 Nesting bird surveys shall be conducted by a qualified avian biologist no more than three (3) days prior to vegetation clearing or ground disturbance activities. Preconstruction surveys shall focus on both direct and indirect evidence of nesting, including nest location s and nesting behavior. The qualified avian biologist will make every effort to avoid potential nest predation as a result of survey and monitoring efforts. If active nests are found during the preconstruction nesting bird surveys, a Nesting Bird Plan (NBP ) shall be prepared and implemented by the qualified avian biologist. At a minimum, the NBP shall include guidelines for addressing active nests, establishing buffers, ongoing monitoring, establishment of avoidance and minimization measures, and reporting. The size and location of all buffer zones, if required, shall be based on the nesting species, individual/pair’s behavior, nesting stage, nest location, its sensitivity to disturbance, and intensity and duration of the disturbance activity. To avoid impacts to nesting birds, any grubbing or vegetation removal should occur outside peak breeding season (typically February 1 through September 1).

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Cultural Resources

CUL-1 Should any cultural resources be encountered during construction of these facilities, earthmoving or grading activities in the immediate area of the finds shall be halted and an onsite inspection shall be performed immediately by a qualified archaeo logist. Responsibility for making this determination shall be with the City. Th e archaeological professional shall assess the find, determine its signifi cance, and make recommendations for appro priate mitigation measures within the guidelines of the California Environmental Quality Act.

CUL-2 Should human remains or funerary objects be encountered during any activities associated with the project, work in the immediate vicinity (within a 100-foot buffer of the find) shall cease and the County Coroner shall be contacted pursuant to State Health and Safety Code §7050.5 and that code enforced for the duration of the project.

Geology and Soils

GEO-1 Stored backfill material shall be covered with water resistant material during periods of heavy precipitation to reduce the potential for rainfall erosion of the material. If covering is not feasible, then measures such as the use of straw bales or sand bags shall be used to capture and hold eroded material on the project site for future cleanup.

GEO-2 Excavated areas shall be properly backfilled and compa cted. Paved areas disturbed by this project will be repaved in such a manner that pipeline connections within adjacent roadways and other disturbed areas are returned to as near the pre-project condition as is feasible.

GEO-3 All exposed, disturbed soil (trenches, stored backfill, etc.) will be sprayed with water or soil binders twice a day or more frequently if fugitive dust is observed migrating from either of the well sites within which the water facilities are being installed.

GEO-4 The length of trench which can be left open at any given time will be limited to that needed to reasonably perform construction activities. This will serve to reduce the amount of backfill stored onsite at any given time.

GEO-5 The City shall identify any additional construction-related erosion and sedimentation prevention BMPs to ensure that the discharge of surface water does not cause erosion downstream of the discharge point. This shall be accomplished by reducing the energy of any site discharge through an artificial energy dissipater or equivalent device. If any substantial erosion or sedimentation occurs, any erosion or sedimentation damage shall be restored to pre-discharge conditions.

GEO-6 Should any paleontological r esources be encountered during construction of these facilities, earthmoving or grading activities in the immediate area of the finds shall be halted and an onsite inspection should be performed immediately by a qualified paleontologist. Responsibility for making this determination shall be with the City’s onsite inspector. The paleontological professional shall assess the find, determine its significance, and determine appropriate mitigation measures within the guidelines of the California Environmental Quality Act that shall be implemented to minimize any impacts to a paleontological resource.

Hazards and Hazardous Materials

HAZ-1 A Hazardous Materials Business Plan prepared and submitted to the Certified Unified Program Agency shall incorporate best m anagement practices designed to minimize the potential for accidental release of such chemicals and shall meet the standards required by California law for Hazardous Materials Business Plans. The facility managers shall implement these measures to reduce the potential for accidental releases of hazardous materials or wastes. The

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Hazardous Materials Business Plan shall be approved prior to operation of the facilities proposed by this project.

HAZ-2 The Hazardous Materials Business Plan shall assess the potential accidental release scenarios and identify the equipment and response capabilities required to provide immediate contain - ment, control, and collection of any released hazardous material. Prior to issuance of the certificate of occupancy, the proposed project facilities shall ensure that necessary equipment has been installed and training of personnel has occurred to obtain sufficient resources to control and prevent the spread of any accidentally released hazardous or toxic materials.

HAZ-3 Prior to o ccupancy of any site for which storage of any acutely hazardous material will be required, such as chlorine gas, modeling of pathways of release and potential exposure of the public to any released hazardous material shall be completed and specific measure s, such as secondary containment, shall be implemented to ensure that sensitive receptors will not be exposed to significant health threats based on the toxic substance involved.

HAZ-4 All hazardous materials during both operation and construction of the proposed project facilities shall be delivered to a licensed treatment, disposal, or recycling facility and be disposed of in accordance with State and federal law.

HAZ-5 Before determining that an area contaminated as a result of an accidental release du ring project operation or construction is fully remediated, specific thresholds of acceptable clean-up shall be established and sufficient samples shall be taken and tested within the contaminated area to verify that these clean -up thresholds have been met in compliance with State and federal law.

HAZ-6 All accidental spills or discharge of hazardous material during construction activities shall be reported to the Certified Unified Program Agency and shall be remediated in compliance with applicable federal, State, and local regulations regarding cleanup and disposal of the contaminant released. The contaminated waste shall be collected and disposed of at a licensed disposal or treatment facility. This measure shall be incorporated into the Stormwater Pollution Prevention Plan (SWPPP) prepared for the proposed State Street Water Treatment Project facilities. Prior to accepting the site as remediated, the area contaminated shall be tested to verify that any residual concentrations meet the standard for future residential or public use of the site.

Hydrology and Water Quality

HYD-1 The Project-Specific Water Quality Management Plan (WQMP) which defines catch basins and other drainage capture mechanisms as permanent Best Management Practices shall be implemented to prevent long-term surface runoff from discharging pollutants from site on which construction has been completed. The WQMP shall be implemented with the goal of achieving a reduction in pollutants following construction to control urban runoff pollution to the maximum extent practicable based on available, feasible best management practices at the time of construction. The storm water discharge from the project site shall be treated to control pollutant concentrations for all pollut ants, but especially for those identified pollutants that impair downstream surface water quality (Santa Ana River) at the time construction occurs.

Source Control BMPs reduce the potential for urban runoff and pollutants from coming into contact with one another. Source Control BMPs that may be incorporated into the project are described in County’s Technical Guidance Manual (TGM).

HYD-2 The City shall require that the construction contractor prepare and implement a Storm Water Pollution Prevention Plan (SWPPP) which specifies Best Manage ment Practices (BMPs) that will prevent all construction pollutants from contacting stormwater and with the intent of keeping all products of erosion from moving offsite into receiving waters. The SWPPP shall include a

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Spill Prevention and Cleanup Plan that identifies the methods of containing, cleanup, transport and proper disposal of hazardous chemicals or materials released during construction activities that are compatible with applicable laws and regulations. BM Ps to be implemented in the SWPPP may include but not be limited to:
• The use of silt fences;
• The use of temporary stormwater desilting or retention basins; • The use of water bars to reduce the velocity of stormwater runoff; • The use of wheel washers on construction equipment leaving the site; • The washing of silt from public roads at the access point to the site to prevent the tracking of silt and other pollutants from the site onto public roads; • The storage of excavated material shall be kept to the minimum necessary to efficiently perform the construction activities required. Excavated or stockpiled material shall not be stored in water courses or other areas subject to the flow of surface water; and • Where feasible, stockpiled material shall be covered with waterproof material during rain events to control erosion of soil from the stockpiles.

Noise

NOI-1 The following construction noise control practices shall be implemented whilst constructing the proposed State Street Water Treatment Project within the entirety of the project footprint:
• Construction staging and activities shall be located in areas as far as practicable from sensitive receivers or in areas where receivers can be shielded from construction noise. • Whenever practicable, construction activities shall be scheduled so as to avo id operating several pieces of equipment simultaneously.
• All heavy-duty stationary construction equipment shall be placed so that emitted noise is directed away from the nearest sensitive receivers.

NOI-2 Construction shall be conducted during the hours identified as acceptable by the jurisdiction within which each construction activity takes place. Throughout the entirety of the project footprint, construction between the hours of 7:00 a.m. and 6:00 p.m. Monday through Friday.

Extended hours of construction and construction on weekends are allowable at various points within the project footprint depending on the jurisdiction as follows: in the City of Montclair, construction shall be limited to the hours of 7:00 a.m. and 8:00 p.m. on any given day; in the City of Chino within the hours of 7:00 a.m. and 6:00 p.m. Monday through Saturday, with no construction allowed on Sundays and federal holidays; in Unincorporated San Bernardino County construction shall be limited to between 7:00 a.m. and 7:00 p.m., exce pt Sundays and Federal holidays. The above limitations on construction hours shall apply in all cases except where a declared emergency exists.

NOI-3 The City shall establish a noise complaint response program and shall respond to any noise complaints received for this project by measuring noise levels at the affected receptor site. If the noise level exceeds an Ldn of 60 dBA exterior or an Ldn of 45 dBA interior at the receptor, the City will implement adequate measures (which may include portable sound attenuation walls, use of quieter equipment, shift of construction schedule to avoid the presence of sensitive receptors, etc.) to reduce noise levels to the greatest extent feasible.

NOI-4 All construction equipment be operated with mandated noise cont rol equipment (mufflers or silencers). Enforcement will be accom plished by random field inspections by City personnel during construction activities.

NOI-5 Equipment not in use for five minutes shall be shut off.

NOI-6 Equipment shall be maintained an d operated such that loads are secured from rattling or banging.

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NOI-7 Construction employees shall be trained in the proper operation and use of equipment consistent with these mitigation measures, including no unnecessary revving of equipment.

NOI-8 No radios or other sound equipment shall be used at this site unless required for emergency response by the contractor.

NOI-9 During future initiation of construction activities with heavy equipment within 300 feet of occupied residences, vibration field t ests shall be conducted at the nearest occupied residences upon receipt. To the extent feasible, if vibrations exceed 72 VdB, the construction activities shall be revised (smaller equip ment, reduced activity) to reduce vibration below this threshold.

Transportation

TRAN-1 The construction contractor will provide adequate traffic management resources, as determined by the City of Chino. The City shall require a construction traffic management plan for work in public roads that complies with the Work Area Traffic Control Handbook, or other applicable standard, to provide adequate traffic control and safety during excavation activities.

The traffic management plan shall be prepared and approved by the City prior to initiation of excavation or pipeline construction. At a minimum this plan shall include how to minimize the amount of time spent on construction activities; how to minimize disruption of vehicle and alternative modes of transport traffic at all times, but particularly during periods of high traffic volumes; how to maintain safe traffic flow on local streets affected by construction at all times, including through the use of adequate signage, protective devices, flag persons or police assistance to ensure that traffic can flow adequately during construction; the identification of alternative routes that can meet the traffic flow requirements of a specific area, including communication (signs, webpages, etc.) with drivers and neighborhoods where construction activities will occur; and at the end of each construction day roadways shall be prepared for continued utilization without any significant roadway hazards remaining.

TRAN-2 The City shall require that all disturbances to public roadways be repaired in a manner that complies with the Standard Specifications for Public Works Construction (green book) or other applicable County of San Bernardino standard design requirements.

Tribal Cultural Resources

TCR-1 Retain a Native American Monitor Prior to Commencement of Ground-Disturbing Activities

A. The project applicant/lead agency shall retain a Native American Monitor from or approved by the Gabrieleño Band of Mission Indians – Kizh Nation. The monitor shall be retained prior to the commencement of any “ground-disturbing activity” for the subject project at all project locations (i.e., both on-site and any off-site locations that are included in the project description/definition and/o r required in connection with the project, such as public improvement work). “Ground - disturbing activity” shall include, but is not limited to, demolition, pavement removal, potholing, auguring, grubbing, tree removal, boring, grading, excavation, drilling, and trenching.

B. A copy of the executed monitoring agreement shall be submitted to the Lead Agency prior to the earlier of the commencement of any ground -disturbing activity, or the issuance of any permit necessary to commence a ground-disturbing activity.

C. The monitor will complete daily monitoring logs that will provide descriptions of the relevant ground-disturbing activities, the type of construction activities performed, locations of ground- disturbing activities, soil types, cultural -related m aterials, and any other facts, conditions, materials, or discoveries of significance to the Tribe. Monitor logs will identify and describe any discovered TCRs, including but not limited to, Native American cultural and historical artifacts, remains, places of significance, etc., (collectively, tribal cultural

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resources, or “TCR”), as well as any discovered Native American (ancestral) human remains and burial goods. Copies of monitor logs will be provided to the project applicant/lead agency upon written request to the Tribe.

D. On-site tribal monitoring shall conclude upon the latter of the following (1) written confirmation to the Kizh from a designated point of contact for The project applicant/lead agency that all ground-disturbing activities and phases that may involve ground-disturbing activities on the project site or in connection with the project are complete; or (2) a determination and written notification by the Kizh to The project applicant/lead agency that no future, planned construction activity and/or development/construction phase at the project site possesses the potential to impact Kizh TCRs.

E. Upon discovery of any TCRs, all construction activities in the immediate vicinity of the discovery shall cease (i.e., not less than the surrounding 50 feet) and shall not resume until the discovered TCR has been fully assessed by the Kizh monitor and/or Kizh archaeologist.

The Kizh will recover and retain all discovered TCRs in the form and/or manner the Tribe deems appropriate, in the including for educational, cultural and/or historic purposes.

TCR-2 Unanticipated Discovery of Human Remains and Associated Funerary Objects

A. Native American human remains are defined in PRC 5097.98 (d)(1) as an inhumation or cremation, and in any state of decompos ition or skeletal completeness. Funerary objects, called associated grave goods in Public Resources Code Section 5097.98, are also to be treated according to this statute.

B. If Native American human remains and/or grave goods discovered or recognized on the project site, then all construction activities shall immediately cease. Health and Safety Code Section 7050.5 dictates that any discoveries of human skeletal material shall be immediately reported to the County Coroner and all ground -disturbing activit ies shall immediately halt and shall remain halted until the coroner has determined the nature of the remains. If the coroner recognizes the human remains to be those of a Native American or has reason to believe they are Native American, he or she shall c ontact, by telephone within 24 hours, the Native American Heritage Commission, and Public Resources Code Section 5097.98 shall be followed.

C. Human remains and grave/burial goods shall be treated alike per California Public Resources Code section 5097.98(d)(1) and (2).

D. Construction activities may resume in other parts of the project site at a minimum of 200 feet away from discovered human remains and/or burial goods, if the Kizh determines in its sole discretion that resuming construction activities a t that distance is acceptable and provides the project manager express consent of that determination (along with any other mitigation measures the Kizh monitor and/or archaeologist deems necessary). (CEQA Guidelines Section 15064.5(f).)
E. Preservation in place (i.e., avoidance) is the preferred manner of treatment for discovered human remains and/or burial goods. Any historic archaeological material that is not Native American in origin (non -TCR) shall be curated at a public, non -profit ins titution with a research interest in the materials, such as the Natural History Museum of Los Angeles County or the Fowler Museum, if such an institution agrees to accept the material. If no institution accepts the archaeological material, it shall be offe red to a local school or historical society in the area for educational purposes.

F. Any discovery of human remains/burial goods shall be kept confidential to prevent further disturbance.

TCR-3 Procedures for Burials and Funerary Remains:

A. As the Mo st Likely Descendant (MLD), the Koo -nas-gna Burial Policy shall be implemented. To the Tribe, the term “human remains” encompasses more than human bones. In ancient times, as well as historic times, Tribal Traditions included, but were not

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limited to, the preparation of the soil for burial, the burial of funerary objects with the deceased, and the ceremonial burning of human remains.

B. If the discovery of human remains includes four or more burials, the discovery location shall be treated as a cemetery and a separate treatment plan shall be created.

C. The prepared soil and cremation soils are to be treated in the same manner as bone fragments that remain intact. Associated funerary objects are objects that, as part of the death rite or ceremony of a cult ure, are reasonably believed to have been placed with individual human remains either at the time of death or later; other items made exclusively for burial purposes or to contain human remains can also be considered as associated funerary objects. Cremations will either be removed in bulk or by means as necessary to ensure complete recovery of all sacred materials.

D. In the case where discovered human remains cannot be fully documented and recovered on the same day, the remains will be covered with musli n cloth and a steel plate that can be moved by heavy equipment placed over the excavation opening to protect the remains.

If this type of steel plate is not available, a 24 -hour guard should be posted outside of working hours. The Tribe will make every eff ort to recommend diverting the project and keeping the remains in situ and protected. If the project cannot be diverted, it may be determined that burials will be removed.

E. In the event preservation in place is not possible despite good faith efforts by the project applicant/developer and/or landowner, before ground -disturbing activities may resume on the project site, the landowner shall arrange a designated site location within the footprint of the project for the respectful reburial of the human remains and/or ceremonial objects.

F. Each occurrence of human remains and associated funerary objects will be stored using opaque cloth bags. All human remains, funerary objects, sacred objects and objects of cultural patrimony will be removed to a secure cont ainer on site if possible. These items should be retained and reburied within six months of recovery. The site of reburial/repatriation shall be on the project site but at a location agreed upon between the Tribe and the City at a site to be protected in p erpetuity. There shall be no publicity regarding any cultural materials recovered.

G. The Tribe will work closely with the project’s qualified archaeologist to ensure that the excavation is treated carefully, ethically and respectfully. If data recovery is approved by the Tribe, documentation shall be prepared and shall include (at a minimum) detailed descriptive notes and sketches. All data recovery data recovery -related forms of documentation shall be approved in advance by the Tribe. If any data recovery is performed, once complete, a final report shall be submitted to the Tribe and the NAHC.

The Tribe does NOT authorize any scientific study or the utilization of any invasive and/or destructive diagnostics on human remains.

Utilities and Service Systems

UTIL-1 The contract with demolition and construction contractors shall include the requirement that all materials that can feasibly be recycled shall be salvaged and recycled. This includes but not limited to wood, metals, concrete, road base and asphalt . The contractors shall submit a recycling plan to the City for review and approval prior to the construction of demoli - tion/construction activities.

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REFERENCES

CRM TECH, “Identification and Evaluation of Historic Properties, State Street Water Treatment Plant in and near City of Chino, California” dated February 21, 2022

ELMT Consulting, “Biological Resources Report for the City of Chino State Street Water Treatment Project in San Bernardino County, California” dated February 2, 2022

Giroux & Associates, “Air Quality and GHG Impact Analyses, State Street Water Treatment Project, Chino, California” dated December 9, 2021

Hazen and Sawyer, “State Street Water Treatment Project, Final Preliminary Design Report, City of Chino” dated August 26, 2021

Websites

https://www.oregon.gov/odot/GeoEnvironmental/Docs_Hydraulics_Manual/Hydraulics -13-G.pdf https://scag.ca.gov/sites/main/files/file-attachments/unincareasanbernardinocounty_0.pdf?1606013790 https://scag.ca.gov/sites/main/files/file-attachments/chino_localprofile.pdf?1606014858 https://scag.ca.gov/sites/main/files/file-attachments/0903fconnectsocal_demographics-and-growth- forecast.pdf?1606001579
http://www.ontarioca.gov/fire
https://www.wmwd.com/183/Inland-Empire-Brine-Line-SARI
https://www2.calrecycle.ca.gov/SolidWaste/SiteActivity/Details/2280?siteID=2402 https://www2.calrecycle.ca.gov/SolidWaste/SiteActivity/Details/1880?siteID=2662

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FIGURES

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FIGURE II-1
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FIGURE VII-1
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APPENDIX 1

PRELIMARY DESIGN REPORT

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Job no
Hazen and Sawyer
7700 Irvine Center Drive, Suite 200
Irvine, CA 92618 • 949.557.8549
-

State Street Water Treatment
Project
FINAL Preliminary Design Report
City of Chino
August 26, 2021

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| Table of Contents ii
Table of Contents
Table of Contents .............................................................................................................ii

1. Background ............................................................................................................ 1-8 Project Overview ...................................................................................................................... 1-8 Existing Facilities ..................................................................................................................... 1-9

2. Water Quality ....................................................................................................... 2-10 Source Water Quality ............................................................................................................. 2-10 Treated Water Goals .............................................................................................................. 2-11

3. Onsite Treatment System .................................................................................... 3-12 Process Treatment Approach ................................................................................................ 3-12 Treatment Processes ............................................................................................................. 3-13 Process Flow Diagram ........................................................................................................... 3-23 Hydraulic Profile ..................................................................................................................... 3-24 Waste Handling ...................................................................................................................... 3-25 Preliminary Site Layout .......................................................................................................... 3-25 Electrical, Instrumentation and Control .................................................................................. 3-26 Architecture and Finishings ................................................................................................... 3-30 Structural ................................................................................................................................ 3-31 Civil ........................................................................................................................................ 3-36 Site Security Recommendations ............................................................................................ 3-37

4. Offsite Facilities ................................................................................................... 4-39 Well 12 and Well 14 Equipping Design .................................................................................. 4-39 Offsite Pipelines ..................................................................................................................... 4-43

5. Permitting ............................................................................................................. 5-45 State Permits ......................................................................................................................... 5-46 Regional Permits .................................................................................................................... 5-46 Offsite Pipeline Permits.......................................................................................................... 5-46 CEQA ..................................................................................................................................... 5-47

6. Cost Estimate ...................................................................................................... 6-47

7. Construction and Commissioning ........................................................................ 7-48

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Construction Schedule ........................................................................................................... 7-48 Maintenance of Plant Operations .......................................................................................... 7-48 Commissioning ...................................................................................................................... 7-48

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| Table of Contents iv
List of Tables
Table 1-1. Well Capacities ........................................................................................................... 1-9 Table 2-1. Contaminants of Concern ......................................................................................... 2-10 Table 2-2. General Mineral and Physical Groundwater Properties ........................................... 2-11 Table 2-3. Influent Water Quality Basis of Design ................................................................... 2-11 Table 2-4. Treatment Goals ....................................................................................................... 2-12 Table 3-1. Sand Separator Design Criteria ................................................................................ 3-14 Table 3-2. Cartridge Filter Design Criteria ................................................................................ 3-14 Table 3-3. GAC Design Criteria ................................................................................................ 3-16 Table 3-4. Biological Treatment Comparison ........................................................................... 3-19 Table 3-5. Nitrate and Perchlorate Design Comparison ............................................................ 3-20 Table 3-6. Calgon ISEPTM IX Design Parameters ..................................................................... 3-21 Table 3-7. Chlorine Design Parameters ..................................................................................... 3-22 Table 3-8. State Street WTF Waste Streams ............................................................................. 3-25 Table 3-9. Electrical Load Summary (Well 14 & Treatment) ................................................... 3-28 Table 3-10. Yard Piping Summary ............................................................................................ 3-37 Table 4-1. System Characteristics .............................................................................................. 4-40 Table 4-2. Recommended Pump Design ................................................................................... 4-43 Table 4-3. Offsite Pipelines Summary ...................................................................................... 4-43 Table 5-1. Anticipated Permits .................................................................................................. 5-45 Table 6-1 Preliminary Cost Estimate ......................................................................................... 6-47