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Packet Pg. 246 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
CHARTER
OF THE
CITY OF EL CENTRO
(filed with the Secretary of State, 2009)
PREAMBLE
WE THE PEOPLE of the City of EI Centro declare our intent to restore to our community the historic principles of self governance inherent in the doctrine of homerule. Sincerely committed to the belief that local government has the closest affinity to the people governed, and firm in the conviction that the economic and fiscal independence of local government will better serve and promote the health, safety and welfare of all the citizens of this City, we do hereby exercise the express right granted by the Constitution of the State of California to enact and adopt this Charter for the City of EI Centro.
CHARTER
Article I
Municipal Affairs
Section 100. Municipal Affairs
Each of the responsibilities of governance set forth and described in this Charter, and as established by the Constitutional, statutory and judicially defined law of the State of California, is hereby declared to be a municipal affair or concern, the performance of which is unique to the benefit of the citizens of the City of EI Centro
Article 5
Revenue Retention
Section 500. General Law Powers
In addition to the power and authority granted by the terms of this Charter and the Constitution of the State of California, the City shall have the power and authority to adopt, make, exercise and enforce all legislation, laws and regulations and to take all actions and to exercise any and all rights, powers, and privileges heretofore or hereafter established, granted or prescribed by any law of the State of California or by any other lawful authority. In the event of any conflict between the provisions of this Charter and the provisions of the general laws of the State of California, the provisions of this Charter shall control.
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Packet Pg. 247 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) El Centro Sewer System Management Plan
Appendix C
Charter Chapter 22 (Sewers and Sewage Disposal)
of the City Municipal Code
Page141
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Packet Pg. 248 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) ORDINANCE NO. 17- 02
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
EL CENTRO REPEALING AND THEN READOPTING IN ITS
ENTIRETY CHAPTER 22 RELATING TO SEWERS AND
SEWAGE DISPOSAL
THE CITY COUNCIL OF THE CITY OF EL CENTRO, CALIFORNIA HEREBY DOES ORDAIN AS FOLLOWS:
SECTION 1. Chapter 22 of the City of El Centro Municipal Code is hereby repealed in its entirety.
SECTION 2. A revised and updated Chapter 22 of the City of El Centro Municipal Code is hereby adopted in its entirety to read as follows:
CHAPTER 22
SEWERS AND SEWAGE DISPOSAL
1AI[a] 4: 6INall 9)0:1[ 7111
Division 1. – Purpose and Scope
Sec. 22- 1. - Purpose.
The purpose of this chapter of the City Code is to provide for the maximum possible beneficial public use of the City' s sewerage system through adequate regulations and/ or permit requirements governing domestic, commercial and industrial discharges, to provide for equitable distribution of the City's costs, and to provide procedures for complying with requirements placed upon the City by other regulatory agencies.
Sec. 22- 2. - Superseding previous regulations.
This chapter shall supersede all previous regulations and policies of the City governing items covered in this chapter.
Sec. 22- 3. - City's right to adopt additional regulations.
The City reserves the right to establish more stringent limitations or requirements on users of the sewerage system if deemed necessary pursuant to the purpose of this chapter.
Secs. 22- 4- 22- 8. - Reserved.
Division 2. – Sewer Connection Requirement
Sec. 22- 9. - Sewer connection as prerequisite to occupation of house, etc.
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Packet Pg. 249 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) It shall be unlawful for any person to occupy a house or any other structure in this City or to rent any such house or structure, either as owner or agent, or to camp or live in any premises within the City, unless such house, other structure or such premises is properly connected with a public sewer whenever ( a) such house or other structure or such premises abuts upon a street or alley in either of which there exists a public sewer, whether or not such street or alley is a public street or alley, or (b) where such house or other structure or such premises abuts upon a public sewer located upon a private right-of-way and which sewer is a part of the public sewer system of the City and which, when upon such right-of-way other than a public or private street or alley, is not more than one hundred sixty ( 160) feet from such house or other structure or such premises and the right-of-way admits of such connection.
Sec. 22- 10_ - Renting of premises lacking sewer connection.
It shall be unlawful for any person, either as owner or agent, to rent any house or other structure or premises not connected with a sewer as provided in section 22- 9.
ARTICLE II. SANITARY FACILITIES ON WORK JOBS
DIVISION 1. - GENERALLY
Sec. 22- 200 - Definitions.
For the purposes of this article, the following words and phrases shall have the meanings respectively ascribed to them by this section:
City manager shall mean the City manager of the City of EI Centro, California, or his designee.
Health department shall mean the health department for the County of Imperial, California.
Health officer shall mean the health officer for the County of Imperial, California.
Person shall mean any person, firm, corporation or any county, municipal corporation or public district of the state.
Sanitary facility shall mean a toilet with seat and cover and may additionally include a separate urinal. The facility shall also have a handwashing station, be approved by the health department, and be connected to an approved sewage disposal system. A chemical -type toilet, approved by the health department, also may constitute a sanitary facility.
Work shall mean the erection, construction, alteration, repair, razing, adding to, removal or demolition of any building or buildings; the construction or repair of any street, of sewers, water lines; or the improvement of any grounds for parks, playgrounds, or for any similar purpose.
Sec. 22-201. - Prerequisite to beginning work.
It shall be unlawful for any person to commence or proceed with any work unless before commencing or proceeding with such work adequate and suitable sanitary facilities are provided for the use ofpersons employed on such work.
Sec. 22- 202. - Location.
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Packet Pg. 250 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) The sanitary facilities provided as required in section 22-201 shall be located upon the site upon which the work in question is being done or in case it is impractical to locate such facilities upon the site, such sanitary facilities shall be located not more than two hundred fifty (250) feet from the site ofthe work.
Sec. 22- 203. - Number.
One sanitary facility shall be provided for each twenty-five ( 25) persons or fraction thereof, employed upon the work in question.
Sec. 22-204. - Maintenance of enclosures; toilet paper.
All sanitary facility enclosures provided for shall be maintained in a clean and sanitary condition at all times and shall be kept supplied with appropriate paper products.
Sec. 22-205. Pit privies.
Pit privies are not permitted within the City ofEl Centro.
Secs. 22-206 -- 22-209. Reserved
Sec. 22-210. - Discontinuance of use of chemical -type sanitary facilities.
Chemical -type sanitary facilities shall be removed from the job site within forty-eight ( 48) hours following final inspection ofthe construction by the building inspector. The contents ofthe facility shall be completely pumped out prior to removal. No one shall pump the contents of any chemical -type sanitary facility unless he/ she/ it possesses a permit to haul sewage issued by the environmental health services division of the county public health department. The cleaning of the facility shall not be done in a manner which would be contrary to law or cause a public nuisance.
Sec. 22-211. - Violation of article.
Any person violating any of the provisions of this article shall be guilty of a misdemeanor and the violation shall constitute a public nuisance. This Article may be enforced by Public Works staff and any building inspector, code enforcement officer or peace officer.
Secs. 22- 212- 22-299. - Reserved.
ARTICLE III. - RESTRICTIONS ON SAME LOT SEWAGE DISPOSAL Sec. 22- 300. - Definitions.
For the purposes of this article, the following additional words and phrases shall have the meanings respectively ascribed to them by this section:
Construction shall mean construction, repair, alteration or relocation of a sewage disposal system.
Drainage system shall mean and include all the piping within public or private premises which conveys sewage or other liquid waste to a point of disposal, but does not include the mains or laterals of a public sewer system.
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Packet Pg. 251 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Engineering tests shall mean percolation tests as developed by the Robert A. Taft Sanitary Engineering Center, as such tests are set forth or defined in Public Health Service Publication No. 526, United States Department of Health, Education, and Welfare, or any other percolation tests which the health officer may designate. At the discretion of the health officer, such engineering tests may include, but need not be limited to, soil borings to a depth often ( 10) feet for a proposed leaching type sewage disposal system or twenty (20) feet if seepage pits are to be utilized.
Multiplefamily residence shall mean a detached building occupied, intended or designed for occupancy by two ( 2) or more families living independently of each other, but under one roof; or a series of separate one family buildings connected together by a common roof. Multi -family residence includes but is not limited to duplexes and apartment building.
Permit shall mean a sanitation permit issued by the health officer after all tests have been made and the requirements ofthis article met.
Place ofbusiness shall mean any structure or building constructed or intended to be used for the operation of a commercial or industrial enterprise.
Public sanitary sewer shall mean any sewage collection or conveyance system operated and maintained by any municipality, district or public corporation organized and existing under and by virtue ofthe laws ofthe state.
Registered civil engineer shall mean any person registered as a civil engineer in accordance with the requirements of Chapter 7, Division 3, Business and Professions Code of the state commencing with Section 6700.
Septic tank shall mean a watertight receptacle which receives the discharge of a drainage system or a part thereof which is designated and constructed so as to allow for gravity separation and retention of suspended and floatable matter, digest organic matter through a period of detention, and allow the liquid to discharge into the soil outside the tank through a subsurface disposal system or into a cesspool meeting the requirements ofthis chapter.
Sewage shall mean any and all waste substances, liquid or solid, associated with human habitation, or which contains or may be contaminated with human or animal excreta or excrement, offal or any feculent matter.
Sewage disposal shall mean any septic tank, privy, structure, vault, or pit for disposal or treatment of sewage and any drainage system or other type system for the disposal of sewage.
Sewage system shall mean the system of pipes and pumps designed to transport sewage to the City wastewater treatment facility.
Single-family residence shall mean any structure occupied, intended, or designed for occupancy by one family for living or sleeping purposes as its principal use.
Sec. 22- 301. — Same lot sewage disposal.
Same lot sewage disposal is prohibited within the City limits ofthe City of El Centro.
Sec. 22-302. - Future compliance.
a) Lots or parcels of land that are within the City limits upon the date of adoption of this Chapter, that have septic tank systems for sewage disposal, shall be required to hook up to A16-01621Sewer Ordinance CH 22 4
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Packet Pg. 252 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Every connection made between private property and any public sewer main shall be made in the manner and with such materials as are required by the specifications for public sewers approved by the City Council and in accordance with all applicable City Codes.
Sec. 22- 502. - Connection— Owner maintenance required.
All connections outside the public right-of-way shall be maintained at the expense of the property owner. The property owner shall install a cleanout at the property line according to City standard drawings.
Sec. 22- 503. - Same— Permit required.
No person shall connect any property with any City sewer without first procuring a permit to make such a connection. Any person desiring to obtain such a permit shall make application for such permit and pay the fees provided for in this article to the Public Works Department. The current and/or proposed use of the subject property shall be consistent with applicable City Development requirements including, without limitation, the City's subdivision, zoning, and building regulations.
Sec. 22- 504. - Same— Fees.
a) All property owners desiring a connection to City sewer mains, whether such mains are in place or not, shall pay a sewer connection fee, based on the size of service as established by resolution of the City Council pursuant to the procedures and prerequisites prescribed by state law.
b) When there are unusual circumstances in connection with the development of the property, such as condominium developments or large areas of open space not connected to the sewers, the City Council may fix the connection fee by agreement with the property owner.
By contract the City Council may give credit against the sewer connection fee for off-site facilities contributed by a property owner, either through an assessment district or otherwise, and by contract the City Council may defer the payment of the sewer connection fee as provided herein. The Council's determination shall be final.
Sec. 22- 505. - Provisions for extensions— Generally
In addition to the connection fee, an applicant requesting service to a lot which is not adjacent to a public sewer shall install a sewer main extension in publicly dedicated streets, alleys or sewer easements accepted by the City council. Sewer mains shall be installed in sewer easements on private property only when it would not be in the interest of the City to accept dedication of a street or alley in the particular location. All sewer main extensions shall be in accordance with the approved Master Plan using standard specifications to be approved from time to time by the City Council and detailed plans approved by the City Engineer. The City Engineer shall determine the size of sewer main required for the area for which application for service is made, and such sewer main shall not have an inside diameter of less than eight ( 8) inches nor shall it be smaller than the line identified in the Master Plan.
Sec. 22- 506. - Same— Cost sharing.
a) Trunk Sewers. Where it is necessary to extend an Trunk Sewer which is designed to service an area in excess of that for which the application is made, the City Council may determine it to be in the interest of the City for the cost of the Trunk Sewer to be shared by the City and the applicant under a special contract, in proportions to be approved by the Council, A16-0162kSewer Ordinance CH 22 7
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Packet Pg. 253 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) depending upon particular circumstances, or paid by the City. Ifthe Trunk Sewer is installed in conformance with a contract between the City and the applicant, any refunds shall be made only in accordance with the conditions in the contract. In no event will any person be refunded more than difference between the amount paid by the person for construction of such facilities and the amount that would have been paid to serve the affected development. b) Lift stations and pumps. Where it has been determined by the Master Plan or is determined by the City Engineer that to properly service an area, parcel, tract or subdivision, a lift station and pump line are necessary, the City Council may determine it to be in the best interest of the City for the cost of the lift station and pump line to be shared by the City and the applicant, under a special contract, in proportions to be approved by the City Council depending upon particular circumstances, paid by the City or paid by the applicant. In no event will any person be refunded more than the difference between the amount paid by the person for construction of such facilities and the amount that would have been paid to serve the affected development.
c) Interceptor Mains. Interceptor Mains are not eligible for cost sharing.
Sec. 22- 507. - Capacity charges.
The property owner shall pay capacity charges for higher intensity uses as set forth in Chapter 24 prior to making any sewer connections.
Secs. 22-508- 22- 520. - Reserved.
DIVISION 2 - Use
Sec. 22- 521. - Scope.
a) This division shall be interpreted in accordance with the definitions set forth in section 22- 522
b) The provisions of this article shall apply to the direct or indirect discharge of all liquid carried wastes to facilities of the City. This article among other things provides for the regulation of sewer construction in areas within the City, the quantity and quality of discharged wastes, the degree of waste pretreatment required, the setting of waste discharge fees to provide for equitable distribution of costs, the approval of plans for sewer construction, the issuance of permits for industrial waste water discharge and of other miscellaneous permits and the establishment of penalties for violation of this article.
Sec. 22- 522. - Definitions.
City manager shall mean the City manager or his duly authorized deputy, agent or department head.
Discharger shall mean any person that discharges or causes a discharge to a public sewer.
Dissolved solids or dissolved matter shall mean the solid matter in solution in the waste water and shall be obtained by evaporation of a sample from which all suspended matter has been removed by filtration as determined by the standard analytical procedure.
Domestic waste water shall mean the water carried wastes produced from noncommercial or nonindustrial activities and which result from normal human living processes.
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Packet Pg. 254 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Effluent shall mean the liquid outflow of any facility designed to treat, convey or retain waste water.
House connection shall mean the sewer connecting the building sewer or building waste drainage system to the public sewer for the purpose of conveying domestic waste water.
Industrial connection shall mean the sewer connecting a commercial or industrial building sewer or building waste system to the public sewer for the purpose of conveying industrial waste water.
Industrial waste water shall mean all water -carried wastes and waste water of a commercial or industrial enterprise excluding domestic waste water and uncontaminated water, and shall include all waste water from any producing, manufacturing, processing, institutional, commercial, agricultural, or other operation.
NPDES permit shall mean National Pollution Discharge Elimination System permit. Such permits are issued to point source waste water dischargers by state and/or federal regulatory agencies and define the required quality of such discharges.
Person shall mean any individual, partnership, committee, association, corporation, public agency, or any other organization or group of persons, public or private. pH shall mean the analytical value associated with a solution's relative acidity or basicity.
Public corporation shall mean this state and any political subdivision thereof, any incorporated municipality therein, any public agency of the state or any political subdivision thereof, or any corporate municipal instrumentality of this state.
Public sewer shall mean any sewer dedicated to public use and whose use is controlled by a public corporation.
Trunk or main line sewer shall mean a sewer constructed, maintained and operated by the City that conveys waste water to the City's treatment facilities and into which lateral and collecting sewers discharge.
Uncontaminated water shall mean any wasted water of the community not contaminated or polluted with waste material and which is suitable or could readily be made suitable for discharge to the municipal storm water drainage system.
User shall mean " discharger," as defined in this section.
Waste water shall mean the water -carried wastes of the community derived from domestic, commercial or industrial sources. Rainwater, groundwater or drainage of uncontaminated water is not waste water.
Sec. 22- 523. - Liquid waste disposal policy.
The following basic City policies apply to liquid waste discharges within the City's boundaries and to other discharges that are tributary to the City's facilities. a) Liquid wastes originating within the area serviced by the City's sewerage system will be collected, treated and disposed by the City provided that the wastes will not:
1) Damage structures;
2) Create nuisance conditions such as odors;
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Packet Pg. 255 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) 3) Menace public health;
4) Impose unreasonable collection, treatment or disposal costs on the City; 5) Be unsusceptible to treatment or interfere with waste water treatment processes; 6) Detrimentally affect the local environment;
7) Pass through the sewage treatment plant unaffected;
8) Exceed any federal, state or local industrial waste water pretreatment standards; 9) Cause the City to violate the provisions of its NPDES permit; or 10) Cause processed streams ( aqueous and sludge) from the City's sewage treatment plant to be unacceptable for beneficial secondary uses. b) The highest and best use ofthe City's sewerage system is the conveyance, treatment and disposal of domestic waste water. The use of the City's sewerage system for industrial waste water discharges is subject to further regulation by the City. c) To comply with stated policies ofthe federal government and to permit the City to meet increasingly higher standards of treatment plant effluent quality, provisions are made in this article for the regulation of industrial waste water discharges. This article establishes quantity and quality limitations on industrial waste water discharges which adversely affect the City's sewerage system or effluent quality. d) Recovery and reuse procedures established by industrial waste water dischargers to meet the limitations set on their discharges will be preferred by the City over those procedures designed solely to meet waste water discharge limitation. Methods providing for beneficial reuse of otherwise wasted resources shall be the approved method of industrial waste water pretreatment wherever feasible. e) The City has the authority to immediately and effectively halt or prevent any discharge of waste water to the City sewerage system which reasonably appears to present:
1) Imminent endangerment to the health or welfare of persons; 2) Endangerment to the environment; and/or
3) Interference with the operation of the treatment plant.
Sec. 22- 524. - Educational work.
The City manager may perform work of an educational nature or may, for this purpose, cooperate with civic organizations, industries, water companies, sewerage agencies and other public corporations.
Sec. 22-525 - Payment of charges and delinquent charges.
All fees and charges imposed under the provisions of this article are due and payable upon receipt of the notice of charges. Unpaid charges shall become delinquent forty-five ( 45) days after mailing or delivering the notice of charges. A basic penalty charge of ten ( 10) per cent of the unpaid amount shall be added to any fee or charge that becomes delinquent. Interest at the rate of one and one-half ( 1'/ 2) per cent per month shall accrue on the total of all delinquent A16-01621Sewer Ordinance CH 22 10
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Packet Pg. 256 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) charges plus all penalty charges. Charges, fees, penalties and interest established hereby are in addition to any other remedies provided to the City elsewhere in this article.
Sec. 22- 526. - Malicious damage to City's facilities.
Any unauthorized entering, breaking, damaging, destroying, uncovering, defacing or tampering with any structure, equipment or appurtenance which is a part of the City's sewerage system shall be a violation ofthis article.
Sec. 22- 527. - Penalty for violation and civil liability. a) Any person violating any provision of this article, including any condition or limitation of a permit or plan approval issued pursuant thereto, is guilty of a misdemeanor, and upon conviction is punishable, for each offense, by a fine of not to exceed one thousand dollars 1, 000.00), imprisonment not to exceed one hundred eighty ( 180) days, or both. b) The City is entitled to and may, upon authorization of the City Council, sue to recover any amounts due the City under the provisions of this article and/or for compensation to the City for damages suffered by the City including the City's payment of fines imposed by state or federal regulatory agencies incurred as a result of said violation(s). c) In addition to any other penalty, any person who violates any provision of this article shall be liable for a civil penalty of a minimum of one thousand dollars ($ 1, 000.00) for each violation of a separate provision ofthis article or, for continuing violations, for each day the violation continues.
Secs. 22- 528- 22- 549. - Reserved.
DIVISION 3. – CONSTRUCTION AND USE
Sec. 22- 550. - Approval of plans for sewerage construction. a) No person, other than employees of the City, persons contracting to do work for the City, or maintenance workers of the local sewerage agency, shall construct or cause to be constructed, or alter or cause to be altered, any public sewer, lateral sewer, house connection or industrial connection, sewage pumping plant, pollution control plant, or other sewerage facility within the area serviced by the City's sewerage system where existing or proposed waste water flows will discharge directly or indirectly to facilities of the City without first obtaining approval of sewerage construction plans from the City Manager. b) The applicant shall submit to the City Manager, for approval, construction plans and such specifications and other details as required describing fully the proposed sewerage facility.
The plans shall have been prepared under the supervision of and shall be signed by an engineer of suitable training registered in the state.
c) Approval of the plans by the City Engineer shall be obtained before approval of plans by the City Manager. Plans for sewerage construction shall not be approved by the City Manager for any facility that will convey industrial waste water unless the discharger has first obtained a City permit for industrial waste water discharge.
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Packet Pg. 257 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) d) Plans for sewerage construction shall meet all design requirements of the public corporation having area jurisdiction and shall also meet all design requirements as established from time to time by the City Manager.
e) Inspection of all sewerage construction under this article shall be made by personnel of the City in the manner described in this article including, without limitation, section 22-552. f) An approval of plans for sewerage construction shall expire one year after date of approval unless construction has been initiated.
Sec. 22- 551. - Permit for sewer connecting directly to a trunk sewer ofthe City. a) Any person desiring to connect a sewer directly to a trunk sewer of the City shall make written application to the City manager on a City trunk sewer connection permit application form. The applicant shall complete the form and furnish such additional information as required by the City manager to substantiate that the proposed work or use will comply with the provisions ofthis article.
b) A trunk sewer construction permit will not be issued unless the applicant has first obtained approval from the City engineer. A permit will not be issued for any sewer which will convey industrial waste waters unless the discharger has first obtained a City permit for industrial waste water discharge.
c) Direct attachment of a sewer six ( 6) inches or smaller in diameter to a trunk sewer will be permitted only if the City manager determines that a suitable local sewer is not available, that adequate trunk sewer capacity exists, that the connection will function properly and that the connection will not adversely affect existing or anticipated facilities or operations of the City.
d) Sewers to be attached directly to a trunk sewer shall be constructed in a manner and at the location specified by the City. Inspection of the connections to a trunk sewer shall be made by personnel ofthe City in the manner described in section 22- 552. e) No sewer shall be connected directly to a trunk sewer without the prior approval of plans for sewerage construction, in accordance with section 22-550 ofthis article. f) A City's trunk sewer construction permit shall expire one hundred twenty ( 120) days after issuance.
Sec. 22- 552. - Inspection of construction.
a) All sewers shall be inspected by personnel of the City during construction. At least fortyeight (48) hours prior to desired connection to a City sewer, the permit holder shall notify the City. The City will schedule and subsequently undertake this connection utilizing City authorized personnel.
b) No waste water shall be discharged into any sewerage facility tributary to a City's facility prior to obtaining inspection and approval ofsewerage construction by the City. c) Following satisfactory completion of construction, the City will issue a construction inspection certificate upon request.
Sec. 22- 553. - Plan approvals and permits not transferable.
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Packet Pg. 258 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Approval of plans for sewerage construction and trunk sewer connection permits are not transferable and/or assignable from one person to another person or from one location to another location without the prior written consent ofthe City manager.
Sec. 22- 554. - Discharge of rainwater or uncontaminated water prohibited.
No person shall discharge or cause to be discharged any rainwater, storm water, groundwater, street drainage, subsurface drainage, yard drainage, water from yard foundations, ponds or lawn sprays or any other uncontaminated water into any sewerage facility which directly or indirectly discharges to the sewerage system owned by the City.
Sec. 22- 555. - Industrial waste water discharges prohibited.
No industrial waste waters shall be discharged to an interceptor sewer or to a sewer discharging directly or indirectly to an interceptor sewer until a permit for industrial waste water discharge has been approved by the City.
Sec. 22- 556. - Manhole reconstruction notification.
The work of adjusting manholes on the City's sewers to new grades will be performed by authorized personnel and in accordance with established procedures of the City. The person proposing or performing work necessitating the adjustment of manholes on the City's sewers to a new grade, shall be responsible for notifying the City in advance of the work.
Sec. 22- 557. - Improper use of connected sewers.
a) The City hereby reserves the right to inspect any sewer connection that discharges waste water directly or indirectly to sewers.
b) The possession, use or maintenance of a sewer connection in a manner resulting in the discharge of septic waste water, excessive groundwater, debris or any other objectionable substance, as described in section 22- 606, or results in the discharge of any waste which creates a stoppage, plugging, breakage, any reduction in sewer capacity or any other damage to sewers or sewerage facilities of the City is prohibited. c) If the City Manager determines that a violation of subparagraph ( b), above, exists, without limitation upon any other remedies available pursuant to this chapter or elsewhere under the law, the City manager shall give notice of said violation to the discharger and shall direct that the condition be corrected. If the discharger has not corrected the condition within the time set forth in the directive, or in the event there are repeated violations by the discharger, the City manager may order the subject connection(s) to be disconnected from the City sewerage system. Said disconnection shall not relieve the discharger from any and all liability for said violation including, without limitation, liability pursuant to section 22- 558 hereof.
Sec. 22- 558. - Excessive sewer maintenance expense.
No person shall discharge or cause to be discharged to a trunk sewer, either directly or indirectly, any waste that creates a stoppage, plugging, breakage, any reduction in sewer capacity or any other damage to sewers or sewerage facilities of the City. Any sewer or sewerage maintenance expenses or any other expenses attributable thereto are hereby declared to be excessive and the offending discharger, in addition to being liable for violating this article, shall be liable to pay such excessive maintenance expenses.
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Packet Pg. 259 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Secs. 22- 559- 22- 599. - Reserved.
ARTICLE VI.
INDUSTRIAL WASTEWATER DISCHARGE REGULATIONS
DIVISION 1. - GENERALLY
Sec. 22-600. – Reserved.
Sec. 22- 601. - Purpose and Policy.
This article sets forth uniform requirements for the City and enables the City to comply with all applicable state and federal laws, including the Clean Water Act (33 United States Code § 1251 et seq.) and the General Pretreatment Regulations ( 40 Code of Federal Regulations Part 403). The objectives ofthis article are:
1. To prevent the introduction of pollutants into the City sewer system that will interfere with its operation;
2. To prevent the introduction of pollutants into the City sewer system that will pass through the City sewer system, inadequately treated, into receiving waters, or otherwise be incompatible with the City sewer system;
3. To protect both City sewer system personnel who may be affected by wastewater and sludge in the course of their employment and the general public;
4. To promote reuse and recycling of wastewater and sludge from the City sewer system;
5. To provide for fees for the equitable distribution of the cost of operation, maintenance, and improvement ofthe City sewer system; and
6. To enable the City to comply with its National Pollutant Discharge Elimination system permit conditions, sludge use and disposal requirements, and any other federal or state laws to which the City sewer system is subject.
This article shall apply to all users of the City sewer system. This article authorizes the issuance of wastewater discharge permits provides for monitoring, compliance, and enforcement activities establishes administrative review procedures; requires user reporting; and provides for the setting of fees for the equitable distribution of costs resulting from the program established herein.
Sec. 22- 602 – Administration.
Except as otherwise provided herein, the City manager shall administer, implement, and enforce the provisions of this article. Any powers granted to or duties imposed upon the City manager may be delegated by the City manager to other City personnel.
Sec. 22-603. Abbreviations.
The following abbreviations, when used in this chapter, shall have the designated meanings:
1. BOD – Biochemical Oxygen Demand;
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Packet Pg. 260 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
2. CFR — Code of Federal Regulations. Where necessary to the enforcement of this article, cited regulations shall be deemed incorporated by reference;
3. COD — Chemical Oxygen Demand;
4. EPA — U.S. Environmental Protection Agency;
5. gpd — gallons per day;
6. mg/1— milligrams per liter;
7. NPDES — National Pollutant Discharge Elimination System;
8. POTW — City sewer system;
9. RCRA — Resource Conservation and Recovery Act;
10. SIC — Standard Industrial Classification;
11. TSS — Total Suspended Solids;
12. U.S.C. — United States Code. Where necessary to the enforcement of this chapter cited statutes shall be deemed incorporated by reference.
Section 22- 604 Definitions.
Unless a provision explicitly states otherwise, the following terms and phrases, as used in this article, shall have the meanings hereinafter designated.
Act" or " the Act" means the Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 U.S. C. § 1251 et seq.
Approval authority" means the state of California, Colorado River Basin Regional Water Quality Control Board.
Authorized Representative of the User" is defined as follows:
1. Ifthe user is a corporation:
a) The president, secretary, treasurer, or a vice-president ofthe corporation in charge of a principal business function, or any other person who performs similar policy or decision-making functions for the corporation; or
b) The manager of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make management decisions that govern the operation ofthe regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiate and direct other comprehensive measures to assure long-term environmental compliance with environmental laws and regulations; can ensure that the necessary systems are established or actions taken to gather complete and accurate information for individual waste water discharge permit requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures
2. Ifthe user is a partnership or sole proprietorship; a general partner or proprietor, respectively.
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3. If the user is a federal, state, or local governmental facility a director or highest official appointed or designated to oversee the operation and performance of the activities of the government facility, or their designee.
4. The individuals described in subsections ( 1- 3) of this section, may designate another authorized representative if the authorization is in writing, the authorization specifies the individual or position responsible for the overall operation of the facility from which the discharge originates or having overall responsibility for environmental matters for the company, and the written authorization is submitted to the City.
Best Management Practices" or " BMPs" means schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to implement the prohibitions listed in Section 22- 606 ( a) and ( b). BMPs include treatment requirements, operating procedures, and practices to control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw materials storage.
Biochemical Oxygen Demand" or ' BOD" means the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedures for five (5) days at two hundred centigrade, usually expressed as a concentration ( e.g., mg/ 1).
Categorical Pretreatment Standard" or " Categorical Standard" means any regulation containing pollutant discharge limits promulgated by EPA in accordance with Sections 307(b) and ( c) of the Act (33 U.S. C. § 1317) which apply to a specific category of users and which appear in 40 CFR Chapter I, Subchapter N, Parts 405-471.
Categorical Industrial User" means an Industrial User subject to a categorical Pretreatment Standard or categorical Standard.
Chemical Oxygen Demand" or " COD" means a measure of the oxygen required to oxidize all compounds, both organic and inorganic, in water.
Daily Maximum" means the arithmetic average of all effluent samples for a pollutant collected during a calendar day.
Daily Maximum Limit" means the maximum allowable discharge limit of a pollutant during a calendar day. Where Daily Maximum Limits are expressed in units of mass, the daily discharge is the total mass discharged over the course of the day. Where Daily Maximum Limits are expressed in terms of a concentration, the daily discharge is the arithmetic average measurement ofthe pollutant concentration derived from all measurements taken that day.
The " City of El Centro' or "City" as represented by the City Council of El Centro.
Environmental Protection Agency" or "EPA" means the U.S. Environmental Protection Agency or, where appropriate, the Regional Water Management Division Director, or other duly authorized official of said agency.
Existing source means any source of discharge, the construction or operation of which commenced prior to the publication by EPA of proposed categorical pretreatment standards, which will be applicable to such source ifthe standard is thereafter promulgated in accordance with Section 307 of the Act.
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Packet Pg. 262 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Grab sample" means a sample that is taken from a wastestream without regard to the flow in the wastestream and over a period of time not to exceed fifteen minutes.
Indirect discharge or discharge" means the introduction of pollutants into the POTW from any nondomestic source regulated under Section 307(b), ( c), or (d) ofthe Act.
Instantaneous maximum allowable discharge limit" or " Instantaneous Limit" means the maximum concentration of a pollutant allowed to be discharged at any time, determined from the analysis of any discrete or composited sample collected, independent of the industrial flow rate and the duration ofthe sampling event.
Interference" means a discharge, which alone or in conjunction with a discharge or discharges from other sources, inhibits or disrupts the POTW, its treatment processes or operations or its sludge processes, use or disposal; and therefore, is a cause of a violation ofthe City's NPDES permit or of the prevention of sewage sludge use or disposal in compliance with any of the following statutory/regulatory provisions or permits issued thereunder, or any more stringent state or local regulations: Section 405 of the Act; the Solid Waste Disposal Act, including Title II commonly referred to as the Resource Conservation and Recovery Act RCRA); any state regulations contained in any state sludge management plan prepared pursuant to Subtitle D ofthe Solid Waste Disposal Act; the Clean Air Act; the Toxic Substances Control Act; and the Marine Protection, Research, and Sanctuaries.
Local Limit" means specific discharge limits developed and enforced by the City upon industrial or commercial facilities to implement the general and specific discharge prohibitions listed in 40 CFR 403. 5( a)( 1) and (b).Act.
Medical waste" means isolation wastes infectious agents, human blood and blood products, pathological wastes, sharps, body parts, contaminated bedding, surgical wastes, potentially contaminated laboratory wastes, and dialysis wastes.
Monthly Average" means the sum of all "daily discharges" measured during a calendar month divided by the number of "daily discharges" measured during that month.
Monthly Average Limit" means the highest allowable average of "daily discharges" over a calendar month, calculated as the sum of all " daily discharges" measured during a calendar month divided by the number of "daily discharges" measured during that month.
New Source."
1. Any building, structure, facility, or installation from which there is ( or may be) a discharge of pollutants, the construction of which commenced after the publication of proposed pretreatment standards under Section 307(c) of the Act which will be applicable to such source if such standards are thereafter promulgated in accordance with that section, provided that:
a. The building, structure, facility, or installation is constructed at a site at which no other source is located; or
b. The building, structure/ facility, or installation totally replaces the process or production equipment that causes the discharge of pollutants at an existing source; or C. The production or wastewater generating processes of the building, structure, facility, or installation are substantially independent of an existing source at the same site. In determining whether these are substantially independent, factors such as the extent to Al6-01621Sewer Ordinance CH 22 17
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Packet Pg. 263 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) which the new facility is integrated with the existing plant, and the extent to which the new facility is engaged in the same general type of activity as the existing source, should be considered.
2. Construction on a site at which an existing source is located results in a modification rather than a new source if the construction does not create a new building, structure, facility, or installation meeting the criteria of subsection ( 1) ( b) or c) above but otherwise alters, replaces, or adds to existing process or production equipment.
3. Construction of a new source as defined under this subsection has commenced ifthe owner or operator has:
program:
a) Begun, or caused to begin, as part of a continuous onsite construction i) Any placement, assembly, or installation of facilities or equipment; or
ii) Significant site preparation work including clearing, excavation, or removal of existing buildings, structures, or facilities which is necessary for the placement, assembly, or installation ofnew source facilities or equipment; or b) Entered into a binding contractual obligation for the purchase of facilities or equipment which is intended to be used in its operation within a reasonable time. Options to purchase or contracts which can be terminated or modified without substantial loss, and contracts for feasibility, engineering, and design studies do not constitute a contractual obligation under this subsection.
Noncontact cooling water" means water used for cooling which does not come into direct contact with any raw material, intermediate product, waste product, or finished product.
Pass through" means a discharge which exits the POTW into waters of the United States in quantities or concentrations which, alone or in conjunction with a discharge or discharges from other sources, is a cause of a violation ofany requirement of the City's NPDES permit, including an increase in the magnitude or duration of a violation.
Person" means any individual, partnership, co -partnership, firm, company, corporation, association, joint stock company, trust, estate, governmental entity, or any other legal entity; or their legal representatives, agents, or assigns. This definition includes all federal, state, and local governmental entities.
pH" is a measure ofthe acidity or alkalinity of a solution, expressed in standard units.
Pollutant" means dredged spoil, solid waste, incinerator residue, filter backwash, sewage, garbage, sewage sludge, munitions, medical wastes, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt, municipal, agricultural and industrial wastes, and certain characteristics of wastewater (e. g., pH, temperature, TSS, turbidity, color, BOD, COD, toxicity, or odor).
Pretreatment" means the reduction of the amount of pollutants, the elimination of pollutants, or the alteration ofthe nature ofpollutant properties in wastewater prior to, or in lieu of, introducing such pollutants into the POTW. This reduction or alteration can be obtained by A16-01621Sewer Ordinance CH 22 18
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Packet Pg. 264 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) physical, chemical, or biological processes; by process changes; or by other means, except by diluting the concentration of the pollutants unless allowed by an applicable pretreatment standard.
Pretreatment requirements" means any substantive or procedural requirement related to pretreatment imposed on a user, other than a pretreatment standard.
Pretreatment standards" or " standards" means prohibited discharge standards, categorical pretreatment standards, and local limits.
Prohibited discharge standards" or "prohibited discharges" means absolute prohibitions against the discharge of certain substances; these prohibitions appear in Section 22- 606 of this article.
Publicly Owned Treatment Works" or " POTW" means a " City sewer system," as defined by Section 212 of the Act ( 33 U.S. C. § 1292) which is owned by the City. This definition includes any devices or systems used in the collection, storage, treatment, recycling, and reclamation of sewage or industrial wastes of a liquid nature and any conveyances which convey wastewater to a treatment plant.
Septic tank waste" means any sewage from holding tanks such as vessels, chemical toilets, campers, trailers, and septic tanks.
Sewage" means human excrement and gray water ( household showers, dishwashing operations, etc.).
Significant Industrial User (SIU).
Except as provided in paragraphs 3 and 4 ofthis Section, a Significant Industrial User is:
1. An Industrial User subject to categorical pretreatment standards; or
2. An Industrial User that:
a) Discharges an average of twenty-five thousand gpd or more of process wastewater to the POTW ( excluding sanitary, noncontact cooling, and boiler blowdown wastewater);
b) Contributes a process wastestream which makes up five percent or more of the average dry weather hydraulic or organic capacity of the POTW treatment plant; or c) Is designated as such by the City on the basis that it has a reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement.
3. The City may determine that an Industrial User subject to categorical Pretreatment Standards is a Non -Significant Categorical Industrial User rather than a Significant Industrial User on a finding that the Industrial User never discharges more than 100 gallons per day ( gpd) of total categorical wastewater ( excluding sanitary, non -contact cooling and boiler blowdown wastewater, unless specifically included in the Pretreatment Standard) and the following conditions are met:
a) The Industrial User, prior to the City' s finding, has consistently complied with all applicable categorical Pretreatment Standards and Requirements; A16-01621Sewer Ordinance CH 22 19
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Packet Pg. 265 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) b) The Industrial User annually submits the certification statement required in Section 22- 635 [ see 40 CR 403. 12( q)], together with any additional information necessary to support the certification statement; and
c) The Industrial User never discharges any untreated concentrated wastewater.
4. Upon a finding that a user meeting the criteria in subsection ( 2) has no reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement, the Pretreatment coordinator may at any time, on its own initiative or in response to a petition received from a user, and in accordance with procedures in 40 CFR 403. 8( f) (6), determine that such user should not be considered a significant industrial user.
5. A CIU may be designated by the City as a Middle Tier CIU if its discharge of categorical wastewater does not exceed the following:
a) 0.01 percent of the design dry weather hydraulic capacity of the POTW or 5, 000 gpd, whichever is smaller;
b) 0.01 percent of the design dry weather organic treatment capacity of the POTW; and
c) 0.01 percent of the maximum allowable headworks loading for any pollutant for which approved local limits were developed by a POTW.
In order to classify a CIU as a Middle Tier CIU, the City must also demonstrate that the CIU has not been in significant noncompliance for any time in the past 2 years and that the reduced reporting requirements would still result in data that is representative of conditions occurring at the facility and in the discharge during the reporting period.
Slug load" or " slug" means any discharge of a non -routine episodic nature, including, but not limited to, an accidental spill or a non -customary discharge that has a reasonable potential to cause interference or pass through or in any other way violate the POTW' s regulations, local limits or permit conditions.
Standard Industrial Classification ( SIC) Code" means a classification pursuant to the Standard Industrial Classification Manual issued by the United States Office of Management and Budget.
Storm water" means any flow occurring during or following any form of natural precipitation, and resulting from such precipitation.
Pretreatment coordinator" means the City manager or such person as the City manager may from time to time designate.
Suspended solids" means the total suspended matter that floats on the surface of, or is suspended in, water, wastewater, or other liquid, and which is removable by laboratory filtering.
User" or "industrial user" means a source ofindirect discharge.
Wastewater" means liquid and water -carried industrial wastes and sewage from residential dwellings, commercial buildings, industrial and manufacturing facilities, and institutions, whether treated or untreated, which are contributed to the POTW.
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Packet Pg. 266 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Wastewater treatment plant" or " treatment plant" means that portion of the POTW which is designed to provide treatment of municipal sewage and industrial waste.
Sec. 22-605. Reserved.
Sec. 22-606. Prohibited Discharge Standards.
a) General Prohibited. No user shall introduce or cause to be introduced into the POTW any pollutant or wastewater which causes pass through or interference. These general prohibitions apply to all users of the POTW whether or not they are subject to categorical pretreatment standards or any other national, state, or local pretreatment standards or requirements.
b) Specific Prohibitions. No user shall introduce or cause to be introduced into the POTW the following pollutants, substances, or wastewater:
1. Pollutants which create a fire or explosive hazard in the POTW, including, but not limited to, waste streams with a closed -cup flashpoint of less than 140° F ( 60° C) using the test methods specified in 40 CFR 261. 21;
2. Wastewater having a pH less than 5. 0 or more than 11. 0 or otherwise causing corrosive structural damage to the POTW or equipment;
3. Solid or viscous substances in amounts which will cause obstruction of the flow in the POTW resulting in interference but in no case solids greater than three eighths inch(es) or 0.95 cm in any dimension;
4. Pollutants, including oxygen -demanding pollutants ( BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which, either singly or by interaction with other pollutants, will cause interference with the POTW;
5. Wastewater having a temperature greater than 140° F ( 60°C), or which will inhibit biological activity in the treatment plant resulting in interference, but in no case wastewater which causes the temperature at the introduction into the treatment plant to exceed 104° F ( 400C) ;
6. Petroleum oil, non -biodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass through;
7. Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems;
8. Trucked or hauled pollutants in accordance with Section 22-623;
9. Noxious or malodorous liquids, gases, solids, or other wastewater which, either singly or by interaction with other wastes, are sufficient to create a public nuisance or a hazard to life, or to prevent entry into the sewers for maintenance or repair;
10. Wastewater which imparts color which cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently imparts color to the treatment plant's effluent, thereby violating the City's NPDES permit;
11. Wastewater containing any radioactive wastes or isotopes except in compliance with applicable state or federal regulations; A16-01621Sewer Ordinance CH 22 21
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12. Storm water, surface water, ground water, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, deionized water, noncontact cooling water, and unpolluted wastewater, unless specifically authorized by the pretreatment coordinator;
13. Sludge, screenings, or other residues from the pretreatment of industrial wastes;
14. Medical wastes, except as specifically authorized by the pretreatment coordinator in a wastewater discharge permit;
15. Wastewater causing, alone or in conjunction with other sources, the treatment plant's effluent to fail a toxicity test;
16. Detergents, surface-active agents, or other substances which may cause excessive foaming in the POTW;
17. Fats, oils, or greases of animal or vegetable origin in concentrations greater than forty mg/l; or
18. Wastewater causing two readings on an explosion hazard meter at the point of discharge into the POTW, or at any point in the POTW, of more than fifty percent or any single reading over seventy-five percent ofthe lower explosive limit of the meter.
Pollutants, substances, or wastewater prohibited by this section shall not be processed or stored in such a manner that they could be discharged to the POTW.
Sec. 22- 607. National Categorical Pretreatment Standards.
The categorical pretreatment standards found at 40 CFR Chapter I, Subchapter N, Parts 405- 471 are hereby incorporated.
1. Where a categorical pretreatment standard is expressed only in terms of either the mass or the concentration of a pollutant in wastewater, the pretreatment coordinator may impose equivalent concentration or mass limits in accordance with 40 CFR 403. 6( c).
2. When wastewater subject to a categorical pretreatment standard is mixed with wastewater not regulated by the same standard, the pretreatment coordinator shall impose an alternate limit using the combined wastestream formula in 40 CFR 403. 6 (e).
3. A user may obtain a variance from a categorical pretreatment standard ifthe user can prove, pursuant to the procedural and substantive provisions in 40 CFR 403. 13, that factors relating to its discharge are fundamentally different from the factors considered by EPA when developing the categorical pretreatment standard.
4. A user may obtain a net gross adjustment to a categorical standard in accordance with 40 CFR 403. 15.
Sec. 22-608. State pretreatment standards.
All applicable state pretreatment standards shall be incorporated as a portion of this chapter.
Sec. 22-609. Local Limits.
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Packet Pg. 268 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) The following pollutant limits are established to protect against pass through and interference. No person shall discharge wastewater containing in excess of the following Daily Maximum and Monthly Average discharge limits:
Pollutants
Local Limits
Daily
Maximum
Monthly
Average
mg/ L) mg/-)
Inorganic Metals
Arsenic 0.37
Cadmium 0.22
Chromium 1. 7
Copper 0.42
Cyanide (Total) 0.22
Lead 1. 2
Mercury 0. 10
Molybdenum 0. 70
Nickel 1. 1
Selenium 0.014
Silver 0.90
Zinc 0.31
VOC and Fume Toxic
1, 4 Dichlorobenzene 0.26
Methyl Chloride 4.41
Conventional Pollutants
BODS 390
TSS 510
Total Dissolved Solids 1500
Ammonia 46
Total Nitrogen
Oil and Grease 100
pH 5. 0- 11. 0
The above limits apply at the point where the wastewater is discharged to the POTW.
All concentrations for metallic substances are for "total" metal unless indicated otherwise. The pretreatment coordinator may impose mass limitations in addition to, or in place of, the concentration- based limitations above.
Sec. 22-610. El Centro's right of revision.
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Packet Pg. 269 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) The City reserves the right to make revisions to the standards or requirements on discharges to the POTW.
Sec. 22- 611. Dilution.
No user shall ever increase the use of process water, or in any way attempt to dilute a discharge, as a partial or complete substitute for adequate treatment to achieve compliance with a discharge limitation unless expressly authorized by an applicable pretreatment standard or requirement. The pretreatment coordinator may impose mass limitations on users who are using dilution to meet applicable pretreatment standards or requirements or in other cases when the imposition ofmass limitations is appropriate.
Secs. 22-612- 22-619. Reserved.
Sec. 22- 620. Pretreatment facilities.
Users shall provide wastewater treatment as necessary to comply with this chapter and shall achieve compliance with all categorical pretreatment standards, local limits, and the prohibitions set out in Section 22-606 of this article within the time limitations specified by EPA, the state, or the pretreatment coordinator, whichever is more stringent. Any facilities necessary for compliance shall be provided, operated, and maintained at the user's expense.
Detailed plans describing such facilities and operating procedures shall be submitted to the pretreatment coordinator for review, and shall be acceptable to the pretreatment coordinator before such facilities are constructed. The review of such plans and operating procedures shall in no way relieve the user from the responsibility of modifying such facilities as necessary to produce a discharge acceptable to the City under the provisions ofthis article.
Sec. 22-621. Additional pretreatment measures.
a) Whenever deemed necessary, the pretreatment coordinator may require users to restrict their discharge during peak flow periods, designate that certain wastewater be discharged only into specific sewers, relocate and/or consolidate points of discharge, separate sewage waste streams from industrial waste streams, and such other conditions as may be necessary to protect the POTW and determine the user's compliance with the requirements of this chapter.
b) The pretreatment coordinator may require any person discharging into the POTW to install and maintain, on their property and at their expense, a suitable storage and flow control facility to ensure equalization of flow. A wastewater discharge permit may be issued solely for flow equalization.
c) Grease, oil, and sand interceptors shall be provided when, in the opinion of the pretreatment coordinator, they are necessary for the proper handling of wastewater containing excessive amounts of grease and oil, or sand; except that such interceptors shall not be required for residential users. All interception units shall be of type and capacity approved by the pretreatment coordinator and shall be so located to be easily accessible for cleaning and inspection. Such interceptors shall be inspected, cleaned, and repaired regularly, as needed, by the user at their expense.
d) Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.
Sec. 22- 622. Accidental discharge/slug control plans.
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Packet Pg. 270 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) At least once every two years, the pretreatment coordinator shall evaluate whether each significant industrial user needs an accidental discharge/slug control plan. The pretreatment coordinator may require any user to develop, submit for approval, and implement such a plan.
Alternatively, the pretreatment coordinator may develop such a plan for any user. An accidental discharge/ slug control plan shall address, at a minimum, the following:
1. Description of discharge practices, including non -routine batch discharges;
2. Description of stored chemicals;
3. Procedures for immediately notifying the pretreatment coordinator of any accidental or slug discharge, as required by Section 22- 654; and
4. Procedures to prevent adverse impact from any accidental or slug discharge. Such procedures include, but are not limited to, inspection and maintenance of storage areas, handling and transfer of materials, loading and unloading operations, control of plant site runoff, worker training, building of containment structures or equipment, measures for containing toxic organic pollutants, including solvents, and/or measures and equipment for emergency response.
Sec. 22-623. Hauled wastewater.
The POTW does not accept septic tank waste.
Sec. 22- 624- 22-629. Reserved.
Sec. 22- 630. Wastewater analysis.
When requested by the pretreatment coordinator, a user must submit information on the nature and characteristics of its wastewater within fourteen days of the request. The pretreatment coordinator is authorized to prepare a form for this purpose and may periodically require users to update this information.
Sec. 22- 631. Wastewater discharge permit requirement.
a) No significant industrial user shall discharge wastewater into the POTW without first obtaining a wastewater discharge permit from the pretreatment coordinator, except that a significant industrial user that has filed a timely application pursuant to Section 22- 632 may continue to discharge for the time period specified therein. b) The pretreatment coordinator may require other users to obtain wastewater discharge permits as necessary to carry out the purposes ofthis chapter. c) Any violation of the terms and conditions of a wastewater discharge permit shall be deemed a violation of this chapter and subjects the wastewater discharge permittee to the sanctions set out in Sections 22-674 through 22-688. Obtaining a wastewater discharge permit does not relieve a permittee of its obligation to comply with all federal and state pretreatment standards or requirements or with any other requirements of federal, state, and local law. d) Annual Certification for Non -Significant Categorical Industrial Users— A facility determined to be a Non -Significant Categorical Industrial User by the Pretreatment coordinator pursuant to Section 22-604 and 22-635 [ Note: See 40 CFR 403. 3( v)( 2)] must annually submit the certification statement in Section 22- 635. 1 signed in accordance with the signatory A16-01621Sewer Ordinance CH 22 25
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Packet Pg. 271 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) requirements in 22- 604 [ Note: See 40 CFR 403. 120( 1)]. This certification must accompany an alternative report as required by the Pretreatment coordinator.
Sec. 22- 632. Wastewater discharge permitting --Existing connections.
Any user required to obtain a wastewater discharge permit who was discharging wastewater into the POTW prior to the effective date of the ordinance codified in this chapter and who wishes to continue such discharges in the future, shall, within ninety days after said date, apply to the pretreatment coordinator for a wastewater discharge permit in accordance with Section 22-634, and shall not cause or allow discharges to the POTW to continue after 200 days after the effective date ofthe ordinance codified in this chapter, except in accordance with a wastewater discharge permit issued by the pretreatment coordinator.
Sec. 22-633. Wastewater discharge permitting --New connections.
Any user required to obtain a wastewater discharge permit who proposes to begin or recommence discharging into the POTW must obtain such permit prior to the beginning or recommencing of such discharge. An application for this wastewater discharge permit, in accordance with Section 22- 634, must be filed at least ninety days prior to the date upon which any discharge will begin or recommence.
Sec. 22- 634. Wastewater discharge permit application contents.
All users required to obtain a wastewater discharge permit must submit a permit application. The pretreatment coordinator may require all users to submit as part of an application the following information:
1. All information required by Section 22- 650(b);
2. Description of activities, facilities, and plant processes on the premises, including a list of all raw materials and chemicals used or stored at the facility which are, or could accidentally or intentionally be, discharged to the POTW;
3. Number and type of employees, hours of operation, and proposed or actual hours of operation;
4. Each product produced by type, amount, process or processes, and rate ofproduction;
5. Type and amount ofraw materials processed ( average and maximum per day);
6. Site plans, floor plans, mechanical and plumbing plans, and details to show all sewers, floor drains, and appurtenances by size, location, and elevation, and all points of discharge;
7. Time and duration of discharges; and
8. Any other information as may be deemed necessary by the pretreatment coordinator to evaluate the wastewater discharge permit application.
Incomplete or inaccurate applications will not be processed and will be returned to the user for revision.
Sec. 22- 635. Application signatories and certification.
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Packet Pg. 272 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
1. All wastewater discharge permit applications and user reports must be signed by an authorized representative ofthe user and contain the following certification statement:
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations."
2. A facility determined to be a Non -Significant Categorical Industrial User by the Pretreatment coordinator must annually submit the following certification statement signed by an authorized representative in accordance with the signatory requirements in Section 22- 604.
Based on my inquiry of the person or persons directly responsible for managing compliance with the categorical Pretreatment Standards under 40 CFR, I certify that, to the best of my knowledge and belief that during the period from to months, days, year] :
a) The facility described as [ facility name] met the definition of a Non -Significant Categorical Industrial User as described in 22- 604;
b) The facility complied with all applicable Pretreatment Standards and requirements during this reporting period; and ( c) the facility never discharged more than 100 gallons oftotal categorical wastewater on any given day during this reporting period.
This compliance certification is based on the following information:" Sec. 22-636. Wastewater discharge permit decisions.
The pretreatment coordinator will evaluate the data furnished by the user and may require additional information. Within sixty days of receipt of a complete wastewater discharge permit application the pretreatment coordinator will determine whether or not to issue a wastewater discharge permit. The pretreatment coordinator may deny any application for a wastewater discharge permit.
Secs. 22- 637- 22-639. Reserved.
Sec. 22- 640. Wastewater discharge permit duration.
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Packet Pg. 273 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) A wastewater discharge permit shall be issued for a specified time period, not to exceed five years from the effective date ofthe permit. An individual wastewater discharge permit may be issued for a period less than five years, at the discretion of the pretreatment coordinator.
Each individual wastewater discharge permit will indicate a specific date upon which it will expire.
Sec. 22-641. Wastewater discharge permit contents.
A wastewater discharge permit shall include such conditions as are deemed reasonably necessary by the pretreatment coordinator to prevent Pass Through or Interference, protect the quality of the water body receiving the treatment plant's effluent, protect worker health and safety, facilitate sludge management and disposal, and protect against damage to the POTW.
1. Individual wastewater discharge permits must contain:
a) A statement that indicates wastewater discharge permit issuance date, expiration date and effective date.
b) A statement that the wastewater discharge permit is nontransferable without prior notification to the City in accordance with Section 22-643, and provisions for furnishing the new owner or operator with a copy ofthe existing wastewater discharge permit; c) Effluent limits, including Best Management Practices, based on applicable pretreatment standards;
d) Self-monitoring, sampling, reporting, notification, and record-keeping requirements. These requirements shall include an identification of pollutants to be monitored, sampling location, sampling frequency, and sample type based on federal, state, and local law; and
e) A statement of applicable civil and criminal penalties for violation of pretreatment standards and requirements, and any applicable compliance schedule. Such schedule may not extend the time for compliance beyond that required by applicable federal, state, or local law.
2. Wastewater discharge permits may contain, but need not be limited to, the following conditions:
a) Limits on the average and/or maximum rate of discharge, time of discharge, and/or requirements for flow regulation and equalization; b) Requirements for the installation of pretreatment technology, pollution control, or construction of appropriate containment devices, designed to reduce, eliminate, or prevent the introduction ofpollutants into the treatment works; c) Requirements for the development and implementation of spill control plans or other special conditions including management practices necessary to adequately prevent accidental, unanticipated, or non -routine discharges; d) Development and implementation of waste minimization plans to reduce the amount of pollutants discharged to the POTW;
e) The unit charge or schedule of user charges and fees for the management ofthe wastewater discharged to the POTW;
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Packet Pg. 274 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) f) Requirements for installation and maintenance of inspection and sampling facilities and equipment;
g) A statement that compliance with the wastewater discharge permit does not relieve the permittee of responsibility for compliance with all applicable federal and state pretreatment standards, including those which become effective during the term of the wastewater discharge permit; and
h) Other conditions as deemed appropriate by the pretreatment coordinator to ensure compliance with this chapter, and state and federal laws, rules, and regulations.
Sec. 22- 642. Wastewater discharge permit appeals.
The pretreatment coordinator shall provide public notice of the issuance of a wastewater discharge permit. Any person, including the user, may petition the pretreatment coordinator to reconsider the terms of a wastewater discharge permit within sixty days of notice of its issuance.
1. Failure to submit a timely petition for review shall be deemed to be a waiver of the administrative appeal.
2. In its petition, the appealing party must indicate the wastewater discharge permit provisions objected to, the reasons for this objection, and the alternative condition, if any, it seeks to place in the wastewater discharge permit.
3. The effectiveness of the wastewater discharge permit shall not be stayed pending the appeal.
4. If the pretreatment coordinator fails to act within sixty days, a request for reconsideration shall be deemed to be denied. Decisions not to reconsider a wastewater discharge permit, not to issue a wastewater discharge permit, or not to modify a wastewater discharge permit may be appealed as provided herein.
a. Appeals shall be in writing and shall be accompanied by a fee established by the City council to defray all expenses and costs associated with processing the appeal. b. The City Clerk shall set the matter for hearing before the City Council.
The decision ofthe council shall be an administrative action for the purpose ofjudicial review.
5. Aggrieved parties seeking review of the final administrative wastewater discharge permit decision must do so by filing an appeal with the City Clerk ofthe City.
Sec. 22-643. Wastewater discharge permit modification.
The pretreatment coordinator may modify a wastewater discharge permit for good cause, including, but not limited to, the following reasons:
1. To incorporate any new or revised federal, state, or local pretreatment standards or requirements;
2. To address significant alterations or additions to the user's operation, processes, or wastewater volume or character since the time of wastewater discharge permit issuance;
3. A change in the POTW caused by mechanical failure, natural disaster or war that requires either a temporary or permanent reduction or elimination ofthe authorized discharge; A16-01621Sewer Ordinance CH 22 29
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4. Information indicating that the permitted discharge poses a threat to the City's POTW, the City's personnel, or the receiving waters;
5. Violation of any terms or conditions of the wastewater discharge permit;
6. Misrepresentations or failure to fully disclose all relevant facts in the wastewater discharge permit application or in any required reporting;
7. Revision of or a grant of variance from categorical pretreatment standards pursuant to 40 CFR 403. 13;
8. To correct typographical or other errors in the wastewater discharge permit; or
9. To reflect a transfer of the facility ownership or operation to a new owner or operator.
Sec. 22-644. Wastewater discharge permit transfer.
Wastewater discharge permits maybe transferred to a new owner or operator only ifthe permittee gives at least thirty days advance notice to the pretreatment coordinator and the pretreatment coordinator approves the wastewater discharge permit transfer. The notice to the pretreatment coordinator must include a written certification by the new owner or operator which:
1. States that the new owner and/ or operator have no immediate intent to change the facility's operations and processes;
2. Identifies the specific date on which the transfer is to occur; and
3. Acknowledges full responsibility for complying with the existing wastewater discharge permit.
Failure to provide advance notice of a transfer renders the wastewater discharge permit void as of the date of facility transfer.
Sec. 22- 645. Wastewater discharge permit revocation.
The pretreatment coordinator may revoke a wastewater discharge permit for good cause, including, but not limited to, the following reasons:
1. Failure to notify the pretreatment coordinator of significant changes to the wastewater prior to the changed discharge;
2. Failure to provide prior notification to the pretreatment coordinator of changed conditions pursuant to Section 22- 654;
3. Misrepresentation or failure to fully disclose all relevant facts in the wastewater discharge permit application;
4. Falsifying self-monitoring reports;
5. Tampering with monitoring equipment;
6. Refusing to allow the pretreatment coordinator timely access to the facility premises and records;
7. Failure to meet effluent limitations;
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8. Failure to pay fines;
9. Failure to pay sewer charges;
10. Failure to meet compliance schedules;
11. Failure to complete a wastewater surveyor the wastewater discharge permit application;
12. Failure to provide advance notice of the transfer of business ownership of a permitted facility; or
13. Violation of any pretreatment standard or requirement, or any terms of the wastewater discharge permit or this chapter.
Wastewater discharge permits shall be voidable upon cessation of operations or transfer of business ownership. All wastewater discharge permits issued to a particular user are void upon the issuance of a new wastewater discharge permit to that user.
Sec. 22- 646. Wastewater discharge permit reissuance.
A user with an expiring wastewater discharge permit shall apply for wastewater discharge permit reissuance by submitting a complete permit application, in accordance with Section 22-634, a minimum of ninety days prior to the expiration of the user's existing wastewater discharge permit.
Sec. 22- 647. Regulation of waste received from other jurisdictions. a) If another municipality, or user located within another municipality, contributes wastewater to the POTW, the pretreatment coordinator shall enter into an intermunicipal agreement with the contributing municipality.
b) Prior to entering into an agreement required by subsection ( a) I of this section, the pretreatment coordinator shall request the following information from the contributing municipality:
1. A description of the quality and volume of wastewater discharged to the POTW by the contributing municipality;
2. An inventory of all users located within the contributing municipality that are discharging to the POTW; and
3. Such other information as the pretreatment coordinator may deem necessary.
c) An inter -municipal agreement, as required by subsection ( a), of this section, shall contain the following conditions:
1. A requirement for the contributing municipality to adopt a sewer use ordinance which is at least as stringent as the ordinance codified in this chapter, and local limits which are at least as stringent as those set out in Section 22-609. The requirement shall specify that such ordinance and limits must be revised as necessary to reflect changes made to the City ordinance or local limits;
2. A requirement for the contributing municipality to submit a revised user inventory on at least an annual basis;
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3. A provision specifying which pretreatment implementation activities, including wastewater discharge permit issuance, inspection and sampling, and enforcement, will be conducted by the contributing municipality; which of these activities will be conducted by the pretreatment coordinator; and which of these activities will be conducted jointly by the contributing municipality and the pretreatment coordinator;
4. A requirement for the contributing municipality to provide the pretreatment coordinator with access to all information that the contributing municipality obtains as part ofits pretreatment activities;
5. Limits on the nature, quality, and volume of the contributing municipality's wastewater at the point where it discharges to the POTW;
6. Requirements for monitoring the contributing municipality' s discharge;
7. A provision ensuring the pretreatment coordinator access to the facilities of users located within the contributing municipality's jurisdictional boundaries for the purpose of inspection, sampling, and any other duties deemed necessary by the pretreatment coordinator; and
8. A provision specifying remedies available for breach of the terms of the inter -municipal agreement.
Secs. 22-648- 22-649. Reserved.
Sec. 22- 650. Baseline monitoring reports.
a) Within either one hundred eighty days after the effective date of a categorical pretreatment standard, or the final administrative decision on a category determination under 40 CFR403.6 ( a) ( 4), whichever is later, existing categorical users currently discharging to or scheduled to discharge to the POTW shall submit to the pretreatment coordinator a report which contains the information listed in subsection ( b), of this section. At least ninety days prior to commencement of their discharge, new sources, and sources that become categorical users subsequent to the promulgation of an applicable categorical standard, shall submit to the pretreatment coordinator a report which contains the information listed in subsection (b), ofthis section. A new source shall report the method of pretreatment it intends to use to meet applicable categorical standards. A new source also shall give estimates of its anticipated flow and quantity ofpollutants to be discharged.
b) Users described above shall submit the information set forth below.
1. Identifying Information.
a) The name and address of the facility, including the name of the operator and owner.
b) Contact information, description of activities, facilities, and plant production processes on the premises.
2. Environmental Permits. A list of any environmental control permits held by or for the facility.
3. Description ofOperations.
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Packet Pg. 278 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) a) A brief description of the nature, average rate of production ( including each product produced by type, amount, processes, and rate of production), and standard industrial classifications of the operation(s) carried out by such User. This description should include a schematic process diagram, which indicates points of discharge to the POTW from the regulated processes.
b) Types of wastes generated, and a list of all raw materials and chemicals used or stored at the facility which are, or could accidentally or intentionally be, discharged to the POTW;
c) Number and type of employees, hours of operation, and proposed or actual hours of operation;
d) Type and amount of raw materials processed ( average and maximum per day);
e) Site plans, floor plans, mechanical and plumbing plans, and details to show all sewers, floor drains, and appurtenances by size, location, and elevation, and all points of discharge
4. Time and duration of discharge
5. The location for monitoring all wastes covered by the permit.
6. Flow Measurement. Information showing the measured average daily and maximum daily flow, in gallons per day, to the POTW from regulated process streams and other streams, as necessary, to allow use of the combined wastestream formula set out in 40 CFR 403. 6( e I.
alternatives.
7. Documentation related to compliance with BMP' s or pollution prevention
8. Measurement of Pollutants.
a) The categorical pretreatment standards applicable to each regulated process. b) The results of sampling and analysis identifying the nature and concentration, and/or mass, where required by the standard or by the pretreatment coordinator, of regulated pollutants in the discharge from each regulated process. Instantaneous, daily maximum, and long-term average concentrations, or mass, where required, shall be reported. The sample shall be representative of daily operations and shall be analyzed, in accordance with procedures set out in Section 22-659. Record keeping shall comply with the requirements of Section 22- 662. c) Sampling must be performed in accordance with procedures set out in Section 22-660. Samples should be taken immediately downstream from pretreatment facilities if such exist or immediately downstream from the regulated process if no pretreatment exists. If other wastewaters are mixed with the regulated wastewater prior to pretreatment the User should measure the flows and concentrations necessary to allow use of the combined wastestream formula in 40 CFR 403. 6( e) to evaluate compliance with the Pretreatment Standards. Where an alternate concentration or mass limit has been calculated in accordance with 40 CFR 403. 6( e) this adjusted limit along with supporting data shall be submitted to the City. Where the Standard requires compliance with a BMP or pollution prevention alternative, the User shall A16-01621Sewer Ordinance CH 22 33
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Packet Pg. 279 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) submit documentation as required by the Pretreatment coordinator or the applicable Standards to determine compliance with the Standard.
9. Certification. A statement, reviewed by the user's authorized representative and certified by a qualified professional, indicating whether pretreatment standards are being met on a consistent basis, and, if not, whether additional operation and maintenance ( O& M) and/or additional pretreatment is required to meet the pretreatment standards and requirements.
10. Compliance Schedule. If additional pretreatment and/or O& M will be required to meet the pretreatment standards, the shortest schedule by which the user will provide such additional pretreatment and/or O& M must be provided. The completion date in this schedule shall not be later than the compliance date established for the applicable pretreatment standard. A compliance schedule pursuant to this section must meet the requirements set out in Section 22- 651.
11. Signature and Certification. All baseline monitoring reports must be signed and certified in accordance with Section 22- 635by an Authorized Representative as defined in Section 22- 604.
Sec. 22- 651. Compliance schedule progress reports.
The following conditions shall apply to the compliance schedule required by Section 22- 650(b) ( 7):
1. The schedule shall contain progress increments in the form of dates for the commencement and completion of major events leading to the construction and operation of additional pretreatment required for the user to meet the applicable pretreatment standards ( such events include, but are not limited to, hiring an engineer, completing preliminary and final plans, executing contracts for major components, commencing and completing construction, and beginning and conducting routine operation)
2. No increment referred to above shall exceed nine months;
3. The user shall submit a progress report to the pretreatment coordinator no later than fourteen days following each date in the schedule and the final date of compliance including, as a minimum, whether or not it complied with the increment of progress, the reason for any delay, and, if appropriate, the steps being taken by the user to return to the established schedule; and
4. In no event shall more than nine months elapse between such progress reports to the pretreatment coordinator.
Sec. 22- 652. Reports on compliance with categorical pretreatment standard deadline.
Within ninety days following the date for final compliance with applicable categorical pretreatment standards, or in the case of a new source following commencement of the introduction of wastewater into the POTW, any user subject to such pretreatment standards and requirements shall submit to the pretreatment coordinator a report containing the information described in Section 22- 650(b) ( 4-6). For users subject to equivalent mass or concentration limits established in accordance with the procedures in 40 CFR 403.6( c), this report shall contain a reasonable measure of the user's long-term production rate. For all other users subject to categorical pretreatment standards expressed in terms of allowable pollutant discharge per A16-01621Sewer Ordinance CH 22 34
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Packet Pg. 280 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) unit of production ( or other measure of operation), this report shall include the user's actual production during the appropriate sampling period. All compliance reports must be signed and certified in accordance with Section 22- 635.
Sec. 22-653. Periodic compliance reports.
a) All significant industrial users shall, at a
frequency determined by the
pretreatment coordinator but in no case less than twice per year (in June and December), submit a report indicating the nature and concentration of pollutants in the discharge which are limited by pretreatment standards and the measured or estimated average and maximum daily flows for the reporting period. All periodic compliance reports must be signed and certified in accordance with Section 22-635.
b) All wastewater samples must be representative of the user's discharge.
Wastewater monitoring and flow measurement facilities shall be properly operated, kept clean, and maintained in good working order at all times. The failure of a user to keep its monitoring facility in good working order shall not be grounds for the user to claim that sample results are unrepresentative ofits discharge.
c) If a user subject to the reporting requirement in this section monitors any pollutant more frequently than required by the pretreatment coordinator, using the procedures prescribed in Section 22-660, the results of this monitoring shall be included in the report.
Sec. 22- 654. Reports of changed conditions.
Each user must notify the pretreatment coordinator of any planned significant changes to the user's operations or system which might alter the nature, quality, or volume of its wastewater at least ninety days before the change.
1. The pretreatment coordinator may require the user to submit such information as may be deemed necessary to evaluate the changed condition, including the submission of a wastewater discharge permit application under Section 22- 634.
2. The pretreatment coordinator may issue a wastewater discharge permit under Section 22-636 or modify an existing wastewater Section 22- 643 in response to changed conditions or anticipated changed conditions.
3. For purposes of this requirement, significant changes include, but are not limited to, flow increases of twenty percent or greater, and the discharge of any previously unreported pollutants.
Sec. 22-655. Reports of potential problems.
a) In the case of any discharge, including, but not limited to, accidental discharges, discharges of a non-routine, episodic nature, a non-customary batch discharge, or a slug load, that may cause potential problems for the POTW, the user shall immediately telephone and notify the pretreatment coordinator of the incident. This notification shall include the location of the discharge, type of waste, concentration and volume, if known, and corrective actions taken by the user.
b) Within five days following such discharge, the user shall, unless waived by the pretreatment coordinator, submit a detailed written report describing the cause( s) of the discharge and the measures to be taken by the user to prevent similar future occurrences. Such Al6-01621Sewer Ordinance CH 22 35
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Packet Pg. 281 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) notification shall not relieve the user of any expense, loss, damage, or other liability which may be incurred as a result of damage to the POTW, natural resources, or any other damage to person or property; nor shall such notification relieve the user of any fines, penalties, or other liability which may be imposed pursuant to this chapter. c) A notice shall be permanently posted on the user's bulletin board or other prominent place advising employees who to call in the event of a discharge described in subsection (a) of this section. Employers shall ensure that all employees, who may cause such a discharge to occur, are advised of the emergency notification procedure. d) Non-domestic dischargers shall notify the pretreatment coordinator immediately when changes at the discharger' s facility affect its potential for a slug discharge. Descriptions of the changes and the rationale for the changes as well as the projected impact on the magnitude and nature of slug discharges shall be provided to the Pretreatment coordinator.
Sec. 22-656. Reports from unpermitted users.
All users not required to obtain a wastewater discharge permit shall provide appropriate reports to the pretreatment coordinator as the pretreatment coordinator may require.
Sec. 22-657. Notice of violation --Repeat sampling and reporting.
If sampling performed by a user indicates a violation, the user must notify the pretreatment coordinator within twenty-four hours of becoming aware of the violation. The user shall also repeat the sampling and analysis and submit the results of the repeat analysis to the pretreatment coordinator within thirty days after becoming aware of the violation.
The user is not required to resample ifthe pretreatment coordinator monitors at the user's facility at least once a month, or if the pretreatment coordinator samples between the user's initial sampling and when the user receives the results ofthis sampling.
Sec. 22-658. Notification of the discharge of hazardous waste. a) Any user who commences the discharge of hazardous waste shall notify the POTW, the EPA Regional Waste Management Division Director, and state hazardous waste authorities, in writing, of any discharge into the POTW of a substance which, if otherwise disposed of, would be a hazardous waste under 40 CFR Part 261. Such notification must include the name of the hazardous waste as set forth in 40 CFR Part 261, the EPA hazardous waste number, and the type of discharge ( continuous, batch, or other). If the user discharges more than one hundred kilograms of such waste per calendar month to the POTW, the notification also shall contain the following information to the extent such information is readily available to the user: an identification of the hazardous constituents contained in the wastes, an estimation of the mass and concentration of such constituents in the wastestream discharged during that calendar month, and an estimation of the mass of constituents in the wastestream expected to be discharged during the following twelve months. All notifications must take place no later than one hundred and eighty days after the discharge commences. Any notification under this sub- section need be submitted only once for each hazardous waste discharged.
However, notifications of changed conditions must be submitted under Section 22- 654. The notification requirement in this section does not apply to pollutants already reported by users subject to categorical pretreatment standards under the self-monitoring requirements of Sections 22-650, 22- 652, and 22- 653.
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Packet Pg. 282 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) b) Dischargers are exempt from the requirements subsection ( a) of this section, during a calendar month in which they discharge no more than fifteen kilograms of hazardous wastes, unless the wastes are acute hazardous wastes as specified in 40 CFR 261. 30(d) and 261. 33( e). Discharge of more than fifteen kilograms of non-acute hazardous wastes in a calendar month, or of any quantity of acute hazardous wastes as specified in 40 CFR 261. 30(d) and 261. 33( e), requires a one-time notification. Subsequent months during which the user discharges more than such quantities of any hazardous waste do not require additional notification.
c) In the case of any new regulations under Section 3001 of RCRA identifying additional characteristics of hazardous waste or listing any additional substance as hazardous waste, the user must notify the pretreatment coordinator, the EPA Regional Waste Management Waste Division Director and state hazardous waste authorities of the discharge of such substance within ninety days of the effective date of such regulations. d) In the case of any notification made under this section, the user shall certify that it has a program in place to reduce the volume and toxicity of hazardous wastes generated to the degree it has determined to be economically practical.
e) This provision does not create a right to discharge any substance not otherwise permitted to be discharged by this chapter, a permit issued thereunder, or any applicable federal or state law.
Sec. 22- 659. Analytical requirements.
All pollutant analyses, including sampling techniques, to be submitted as part of a wastewater discharge permit application or report shall be performed in accordance with the techniques prescribed in 40 CFR Part 136, unless otherwise specified in an applicable categorical pretreatment standard. If 40 CFR Part 136 does not contain sampling or analytical techniques for the pollutant in question, sampling and analyses must be performed in accordance with procedures approved by EPA.
Sec. 22-660. Sample collection.
a) Except as indicated in subsection ( b) of this section, the user must collect wastewater samples using flow proportional composite collection techniques. In the event flow proportional sampling is infeasible, the pretreatment coordinator may authorize the use of time proportional sampling or a minimum of four grab samples where the user demonstrates that this will provide a representative sample of the effluent being discharged. In addition, grab samples may be required to show compliance with instantaneous discharge limits. Samples must be taken immediately downstream from the pretreatment facility ( if such facility exists) or immediately downstream from the regulated process ( if no pretreatment exists). If other wastewaters are mixed with the regulated wastewater prior to pretreatment the User should measure the flows and concentrations necessary to allow use of the combined wastestream formula in 40 CFR 403. 6( e) to evaluate compliance with the Pretreatment Standards. b) Samples for oil and grease, temperature, pH, cyanide, phenols, sulfides, and volatile organic compounds must be obtained using grab collection techniques. Grab samples collected during a 24 hour period for cyanide, total phenols and sulfides may be composited prior to analysis in the laboratory or in the field. Grab samples for volatile organics and oil and A16-016Mewer Ordinance CH 22 37
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Packet Pg. 283 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) grease may be composited prior to analysis in the laboratory if approved by the Pretreatment coordinator.
Sec. 22- 661. Timing.
Written reports will be deemed to have been submitted on the date postmarked. For reports which are not mailed, postage prepaid, into a mail facility serviced by the United States Postal Service, the date ofreceipt ofthe report shall govern.
Sec. 22- 662. Record keeping.
Users subject to the reporting requirements of this ordinance shall retain, and make available for inspection and copying, all records of information obtained pursuant to any monitoring activities required by this chapter and any additional records of information obtained pursuant to monitoring activities undertaken by the user independent of such requirements. Records shall include the date, exact place, method, and time of sampling, and the name of the person(s) taking the samples; the dates that the analyses were performed; who performed the analyses; the analytical techniques or methods used; and the results of such analyses. These records and all documentation associated with BMP compliance shall remain available for a period of at least three years. This period shall be automatically extended for the duration of any litigation concerning the user or the City, or where the user has been specifically notified of a longer retention period by the pretreatment coordinator.
Secs. 22- 663- 22- 669. Reserved.
Sec. 22-670. Right of entry--Inspection and sampling.
The pretreatment coordinator shall have the right to enter the premises of any user to determine whether the user is complying with all requirements of this chapter and any wastewater discharge permit or order issued hereunder. Users shall allow the pretreatment coordinator ready access to all parts of the premises for the purposes of inspection, sampling, records examination and copying, and the performance of any additional duties.
1. Where a user has security measures in force which require proper identification and clearance before entry into its premises, the user shall make necessary arrangements with its security guards so that, upon presentation of suitable identification, the pretreatment coordinator will be permitted to enter without delay for the purposes of performing specific responsibilities.
2. The pretreatment coordinator shall have the right to set up on the user's property, or require installation of, such devices as are necessary to conduct sampling and/or metering of the user's operations.
3. The pretreatment coordinator may require the user to install monitoring equipment as necessary. The facility's sampling and monitoring equipment shall be maintained at all times in a safe and proper operating condition by the user at its own expense. All devices used to measure wastewater flow and quality shall be calibrated and maintained as recommended by the manufacturer ofthe equipment to ensure their accuracy.
4. Any temporary or permanent obstruction to safe and easy access to the facility to be inspected and/or sampled shall be promptly removed by the user at the written or verbal request of the pretreatment coordinator and shall not be replaced. The costs of clearing such access shall be borne by the user equipment to ensure their accuracy.
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5. Unreasonable delays in allowing the pretreatment coordinator access to the user's premises shall be a violation ofthis chapter.
Sec. 22-671. Search warrants.
If the pretreatment coordinator has been refused access to a building, structure, or property, or any part thereof, and is able to demonstrate probable cause to believe that there may be a violation of this chapter , or that there is a need to inspect and/or sample as part of a routine inspection and sampling program of the City designed to verify compliance with this chapter or any permit or order issued hereunder, or to protect the overall public health, safety and welfare of the community, then the pretreatment coordinator may seek issuance of a search warrant from the superior court of Imperial County.
Sec. 22- 672. Confidential information.
Information and data on a user obtained from reports, surveys, wastewater discharge permit applications, wastewater discharge permits, and monitoring programs, and from the pretreatment coordinator's inspection and sampling activities, shall be available to the public as required by law, unless the user specifically requests, and is able to demonstrate to the satisfaction of the pretreatment coordinator, that the release of such information would divulge information, processes, or methods of production entitled to protection as trade secrets under applicable state law. Any such request must be asserted at the time of submission of the information or data. When requested and demonstrated by the user furnishing a report that such information should be held confidential, the portions of a report which might disclose trade secrets or secret processes shall not be made available for inspection by the public, but shall be made available immediately upon request to governmental agencies for uses related to the NPDES program or pretreatment program, and in enforcement proceedings involving the person furnishing the report. Wastewater constituents and characteristics and other " effluent data" as defined by 40 CFR 2.302 will not be recognized as confidential information and will be available to the public without restriction.
Sec. 22-673. Publication of users in significant noncompliance.
The pretreatment coordinator shall publish annually, in a newspaper of general circulation that provides meaningful public notice within the jurisdiction served by the El Centro Wastewater Treatment Plant, a list of the users which, during the previous twelve months, were in significant noncompliance with applicable pretreatment standards and requirements. The term significant noncompliance shall be applicable to all Significant Industrial Users (or any other Industrial User that violates paragraphs 3, 4 or 8 of this Section) and shall mean:
1. Chronic violations of wastewater discharge limits, defined here as those in which sixty-six percent (66%) or more of all the measurements taken for the same pollutant parameter taken during a six- ( 6-) month period exceed ( by any magnitude) a numeric Pretreatment Standard or Requirement, including Instantaneous Limits as defined in Section 22-604;
2. Technical Review Criteria (TRC) violations, defined here as those in which thirtythree percent ( 33%) or more of wastewater measurements taken for each pollutant parameter during a six- ( 6-) month period equals or exceeds the product of the numeric Pretreatment Standard or Requirement including Instantaneous Limits, as defined in Section 22-604 A16-01621Sewer Ordinance CH 22 39
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Packet Pg. 285 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) multiplied by the applicable criteria ( 1. 4 for BOD, TSS, fats, oils and grease, and 1. 2 for all other pollutants except pH);
3. Any other violation of a Pretreatment Standard or Requirement as defined in Section 22-604 ( Daily Maximum, long-term average, Instantaneous Limit, or narrative standard) that the Pretreatment coordinator determines has caused, alone or in combination with other discharges, Interference or Pass Through, including endangering the health of POTW personnel or the general public;
4. Any discharge of a pollutant that has caused imminent endangerment to the public or to the environment, or has resulted in the Pretreatment coordinator' s exercise of its emergency authority to halt or prevent such a discharge;
5. Failure to meet, within ninety ( 90) days of the scheduled date, a compliance schedule milestone contained in an individual wastewater discharge permit or a general permit or enforcement order for starting construction, completing construction, or attaining final compliance;
6. Failure to provide within forty-five ( 45) days after the due date, any required reports, including baseline monitoring reports, reports on compliance with categorical Pretreatment Standard deadlines, periodic self-monitoring reports, and reports on compliance with compliance schedules;
7. Failure to accurately report noncompliance; or
8. Any other violation(s), which may include a violation of Best Management Practices, which the Pretreatment coordinator determines will adversely affect the operation or implementation of the local pretreatment program.
Sec. 22-674. Notification of violation.
When the pretreatment coordinator finds that a user has violated, or continues to violate, any provision of this chapter, a wastewater discharge permit or order issued hereunder, or any other pretreatment standard or requirement, the pretreatment coordinator may serve upon that user a written notice of violation. Within forty five days of the receipt of this notice, an explanation of the violation and a plan for the satisfactory correction and prevention thereof, to include specific required actions, shall be submitted by the user to the pretreatment coordinator.
Submission of this plan in no way relieves the user of liability for any violations occurring before or after receipt ofthe notice of violation.
Nothing in this section shall limit the authority of the pretreatment coordinator to take any action, including emergency actions or any other enforcement action, without first issuing a notice of violation.
Sec. 22- 675. Consent orders.
The pretreatment coordinator may enter into consent orders, assurances of voluntary compliance, or other similar documents establishing an agreement with any user responsible for noncompliance. Such documents will include specific action to be taken by the user to correct the noncompliance within a time period specified by the document. Such documents shall have the same force and effect as the administrative orders issued pursuant to Sections 22-677 and 22- 678 and shall be judicially enforceable.
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Packet Pg. 286 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Sec. 22-676. Show cause hearing.
The pretreatment coordinator may require a user which has violated, or continues to violate, any provision of this chapter, a wastewater discharge permit or order issued hereunder, or any other pretreatment standard or requirement, to appear before the pretreatment coordinator and show cause why the proposed enforcement action should not be taken. Notice shall be served on the user specifying the time and place for the meeting, the proposed enforcement action, the reasons for such action, and a request that the user show cause why the proposed enforcement action should not be taken. The notice of the meeting shall be served personally or by registered or certified mail (return receipt requested) at least thirty days prior to the hearing. Such notice may be served on any authorized representative of the user. A show cause hearing shall not be a bar against, or prerequisite for, taking any other action against the user.
Sec. 22- 677. Compliance orders.
When the pretreatment coordinator finds that a user has violated, or continues to violate, any provision of this chapter, a wastewater discharge permit or order issued hereunder, or any other pretreatment standard or requirement, the pretreatment coordinator may issue an order to the user responsible for the discharge directing that the user come into compliance within a specified time. If the user does not come into compliance within the time provided, sewer service may be discontinued unless adequate treatment facilities, devices, or other related appurtenances are installed and properly operated. Compliance orders also may contain other requirements to address the noncompliance, including additional self-monitoring and management practices designed to minimize the amount of pollutants discharged to the sewer.
A compliance order may not extend the deadline for compliance established for a pretreatment standard or requirement, nor does a compliance order relieve the user of liability for any violation, including any continuing violation. Issuance of a compliance order shall not be a bar against, or a prerequisite for, taking any other action against the user.
Sec. 22- 678. Cease and desist orders.
When the pretreatment coordinator finds that a user has violated, or continues to violate, any provision of this chapter, a wastewater discharge permit or order issued hereunder, or any other pretreatment standard or requirement, or that the user's past violations are likely to recur, the pretreatment coordinator may issue an order to the user directing it to cease and desist all such violations and directing the user to:
1. Immediately comply with all requirements and
2. Take such appropriate remedial or preventive action as may be needed to properly address a continuing or threatened violation, including halting operations and/or terminating the discharge.
Issuance of a cease and desist order shall not be a bar against, or a prerequisite for, taking any other action against the user.
Sec. 22- 679. Administrative fines.
a) In accordance with California Government Code Section 54740.5, when the pretreatment coordinator finds that a user has violated, or continues to violate, any provision of this chapter, a wastewater discharge permit or order issued hereunder, or any other pretreatment A16-01621Sewer Ordinance CH 22 41
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Packet Pg. 287 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) standard or requirement adopted or ordered by the City pursuant to paragraph ( 1) or ( 2) of subdivision ( a) of Section 54739 of the California Government Code, the pretreatment coordinator may fine such user in an amount not to exceed the limits in Paragraph ( e) or equal to the fine imposed by the California Regional Water Quality Control Board ( CRWQCB), including City administrative fees. Such fines shall be assessed on a per violation, per day basis. In the case of monthly or other long term average discharge limits, fines shall be assessed for each day during the period of violation.
b) The Pretreatment coordinator shall prepare an administrative complaint which shall allege the act or failure to act that constitutes the violation ofthe local City' s requirements, the provisions of law authorizing civil liability to be imposed, and the proposed civil penalty. c) The administrative complaint shall be served by personal delivery or certified mail on the person subject to the City' s discharge requirements, and shall inform the person served that a hearing shall be conducted within 60 days after the person has been served. The hearing shall be before a hearing officer designated by the Pretreatment coordinator. The person who has been issued an administrative complaint may waive the right to a hearing, in which case the local agency shall not conduct a hearing. A person dissatisfied with the decision of the hearing officer may appeal to the City Council within 30 days of notice of the hearing officer' s decision.
d) If after the hearing, or appeal, if any, it is found that the person has violated reporting or discharge requirements, the hearing officer may assess a civil penalty against that person. In determining the amount of the civil penalty, the hearing officer may take into consideration all relevant circumstances, including, but not limited to, the extent of harm caused by the violation, the economic benefit derived through any noncompliance, the nature and persistence of the violation, the length of time over which the violation occurs and corrective action, ifany, attempted or taken by the discharger.
e) Civil penalties may be imposed by the local City as follows:
1) In an amount which shall not exceed two thousand dollars ($2,000) for each day for failing or refusing to furnish technical or monitoring reports. 2) In an amount which shall not exceed three thousand dollars ($3, 000) for each day for failing or refusing to timely comply with any compliance schedule established by the City. 3) In an amount which shall not exceed five thousand dollars ($5, 000) per violation for each day for discharges in violation of any waste discharge limitation, permit condition, or requirement issued, reissued, or adopted by the City.
4) In an amount which does not exceed ten dollars ($ 10) per gallon for discharges in violation of any suspension, cease and desist order or other orders, or prohibition issued, reissued, or adopted by the City.
5) The amount of any civil penalties imposed under this section which have remained delinquent for a period of 60 days shall constitute a lien against the real property of the discharger from which the discharge originated resulting in the imposition of the civil penalty. The lien provided herein shall have no force and effect until recorded with the county recorder and when recorded shall have the force and effect and priority of a judgment lien and continue for 10 years from the time of recording unless sooner released, and shall be renewable Al" l621Sewer Ordinance CH 22 42
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Packet Pg. 288 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) in accordance with the provisions of Sections 683. 110 to 683.220, inclusive, of the Code of Civil Procedure.
f) All moneys collected under this section shall be deposited in a special account of the local agency and shall be made available for the monitoring, treatment, and control of discharges into the local agency' s sanitation or sewer system or for other mitigation measures. g) Unless appealed, orders setting administrative civil penalties shall become effective and final upon issuance thereof, and payment shall be made within 30 days. Copies of these orders shall be served by personal service or by registered mail upon the party served with the administrative complaint and upon other persons who appeared at the hearing and requested a copy.
h) Unpaid charges, fines, and penalties shall, after thirty calendar days, will be assessed an additional penalty of ten percent of the unpaid balance, and interest shall accrue thereafter at the legal rate per month. A lien against the user's property will be sought for unpaid charges, fines, and penalties.
i) Users desiring to dispute such fines must file a written request for the pretreatment coordinator to reconsider the fine along with full payment of the fine amount within thirty days of being notified of the fine. Where a request has merit, (the pretreatment coordinator) may convene a hearing on the matter. In the event the user's appeal is successful, the payment, together with any interest accruing thereto, shall be returned to the user. The pretreatment coordinator may add the costs of preparing administrative enforcement actions, such as notices and orders, to the fine. The decision of the pretreatment coordinator may be appealed to the City council as set forth in Section 22- 642. 0) Any party aggrieved by a final order issued by the City Council after granting review of the order of a hearing officer, may obtain review of the order of the board in the superior court by filing in the court a petition for writ of mandate within 30 days following the service of a copy of a decision and order issued by the City Council in accordance with Section 54740.6 ofthe California Government Code.
k) Issuance of an administrative fine shall not be a bar against, or a prerequisite for, taking any other action against the user.
Sec. 22- 680. Emergency suspensions.
The pretreatment coordinator may immediately suspend a user's discharge, after informal notice to the user, whenever such suspension is necessary to stop an actual or threatened discharge which reasonably appears to present or cause an imminent or substantial endangerment to the health or welfare of persons. The pretreatment coordinator may also immediately suspend a user's discharge, after notice and opportunity to respond, that threatens to interfere with the operation of the POTW, or which presents, or may present, an endangerment to the environment.
1. User shall keep City informed as to who will receive notices.
2. Any user notified of a suspension of its discharge shall immediately stop or eliminate its contribution. In the event of a user's failure to immediately comply voluntarily with the suspension order, the pretreatment coordinator may take such steps as deemed necessary, including immediate severance of the sewer connection, to prevent or minimize A16-01621Sewer Ordinance CH 22 43
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Packet Pg. 289 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) damage to the POTW, its receiving stream, or endangerment to any individuals. The pretreatment coordinator may allow the user to recommence its discharge when the user has demonstrated to the satisfaction ofthe pretreatment coordinator that the period of endangerment has passed, unless the termination proceedings in Section 22- 681 are initiated against the user.
3. A user that is responsible/ in whole or in part/ for any discharge presenting imminent endangerment shall submit a detailed written statement, describing the causes of the harmful contribution and the measures taken to prevent any future occurrence, to the pretreatment coordinator prior to the date of any show cause or termination hearing under Sections 22-676 or 22-681.
Nothing in this section shall be interpreted as requiring a hearing prior to any emergency suspension under this section.
Sec. 22- 681. Termination of discharge.
In addition to the provisions in Section 22- 645, any user who violates the following conditions is subject to discharge termination:
1. Repeated violations of wastewater discharge permit conditions;
2. Failure to accurately report the wastewater constituents and characteristics of its discharge;
3. Failure to report significant changes in operations or wastewater volume, constituents, and characteristics prior to discharge;
4. Refusal ofreasonable access to the user's premises for the purpose of inspection, monitoring, or sampling; or
5. Violation of the pretreatment standards in Section 22- 606 through 22-611. Such user will be notified ofthe proposed termination of its discharge and be offered an opportunity to show cause under Section 22- 676 why the proposed action should not be taken. Exercise of this option by the pretreatment coordinator shall not be a bar to, or a prerequisite for, taking any other action against the user. The decision of the pretreatment coordinator may be appealed to the City council in accordance with Section 22- 642. The City council may convene prior to hearing the appeal to determine whether the decision of the pretreatment coordinator should be stayed pending the appeal.
Sec. 22-682. Injunctive relief.
When the pretreatment coordinator finds that a user has violated/ or continues to violate/ any provision ofthis chapter, a wastewater discharge permit, or order issued hereunder, or any other pretreatment standard or requirement, the pretreatment coordinator may petition the court through the City's attorney for the issuance of a temporary or permanent injunction, as appropriate, which restrains or compels the specific performance of the wastewater discharge permit, order, or other requirement imposed by this chapter on activities of the user. The pretreatment coordinator may also seek such other action as is appropriate for legal and/or equitable relief, including a requirement for the user to conduct environmental remediation. A petition for injunctive relief shall not be a bar against, or a prerequisite for, taking any other action against a user.
Sec. 22-683. Civil penalties.
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Packet Pg. 290 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) a) A user who has violated, or continues to violate, any provision of this division, a wastewater discharge permit, or order issued hereunder, or any other pretreatment standard or requirement shall be liable to the City for up to the maximum civil penalty allowed under state law per violation, per day. In the case of a monthly or other long-term average discharge limit, penalties shall accrue for each day during the period ofthe violation. b) The pretreatment coordinator may recover reasonable attorneys' fees, court costs, and other expenses associated with enforcement activities, including sampling and monitoring expenses, and the cost of any actual damages incurred by the City. c) In determining the amount of civil liability, the court shall take into account all relevant circumstances, including, but not limited to, the extent of harm caused by the violation, the magnitude and duration of the violation, any economic benefit gained through the user's violation, corrective actions by the user, the compliance history ofthe user, and any other factor as justice requires.
d) Filing a suit for civil penalties shall not be a bar against, or a prerequisite for, taking any other action against a user.
Sec. 22-684. Criminal prosecution.
a) A user who violates any provision of this division, a wastewater discharge permit, or order issued hereunder, or any other pretreatment standard or requirement shall, upon conviction, be guilty of a misdemeanor.
b) A user who willfully or negligently introduces any substance into the POTW which causes personal injury or property damage shall, upon conviction, be guilty of a misdemeanor.
c) A user who knowingly makes any false statements, representations, or certifications in any application, record, report, plan, or other documentation flied, or required to be maintained, pursuant to this chapter, waste water discharge permit, or order issued hereunder, or who falsifies, tampers with, or knowingly renders inaccurate any monitoring device or method required under this chapter shall, upon conviction, be guilty of a misdemeanor.
d) Each day shall constitute a separate offense. The applicable penalty shall be as set forth in 40 CFR 403. 8 and the California Penal Code.
Sec. 22-685. Remedies nonexclusive.
The remedies provided for in this division are not exclusive. The pretreatment coordinator may take any, all, or any combination of these actions against a noncompliant user.
Enforcement of pretreatment violations will generally be in accordance with the City's enforcement response plan. However, the pretreatment coordinator may take other action against any user when the circumstances warrant. Further, the pretreatment coordinator is empowered to take more than one enforcement action against any noncompliant user. Appeals to the City council of decisions made by the pretreatment coordinator may be taken as set forth in this chapter.
Sec. 22-686. Performance bonds.
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Packet Pg. 291 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) The pretreatment coordinator may decline to issue or reissue a wastewater discharge permit to any user who has failed to comply with any provision of this chapter, a previous wastewater discharge permit, or order issued hereunder, or any other pretreatment standard or requirement, unless such user first files a satisfactory bond, payable to the City, in a sum not to exceed a value determined by the pretreatment coordinator to be necessary to achieve consistent compliance.
Sec. 22-687. Liability insurance.
The pretreatment coordinator may decline to issue or reissue a wastewater discharge permit to any user who has failed to comply with any provision of this chapter, a previous wastewater discharge permit, or order issued hereunder, or any other pretreatment standard or requirement, unless the user first submits proof that it has obtained financial assurances sufficient to restore or repair damage to the POTW caused by its discharge.
Sec. 22-688. Water supply severance optional.
Whenever a user continues to violate any provision of this division, a wastewater discharge permit, or order issued hereunder, or any other pretreatment standard or requirement, water service to the user may be severed. Service will only recommence, at the user's expense, after it has satisfactorily demonstrated its ability to comply.
Sec. 22-689. Public nuisances.
A violation of any provision of this division, a wastewater discharge permit, or order issued hereunder, or any other pretreatment standard or requirement is hereby declared a public nuisance and shall be corrected or abated as directed by the pretreatment coordinator. Any person(s) creating a public nuisance shall be subject to the provisions of the City code governing such nuisances, including reimbursing the City for any costs incurred in removing, abating, or remedying said nuisance.
Sec. 22-690. Upset.
a) For the purposes of this section, " upset" means an exceptional incident in which there is unintentional and temporary noncompliance with categorical pretreatment standards because of factors beyond the reasonable control of the user. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation.
b) An upset shall constitute an affirmative defense to an action brought for noncompliance with categorical pretreatment standards if the requirements of subsection ( c) of this section, are met.
c) A user who wishes to establish the affirmative defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or other relevant evidence that:
1. An upset occurred and the user can identify the cause( s) of the upset;
2. The facility was at the time being operated in a prudent and workmanlike manner and in compliance with applicable operation and maintenance procedures; and A16-01621Sewer Ordinance CH 22 46
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3. The user has submitted the following information to the pretreatment coordinator within twenty-four hours of becoming aware of the upset; if this information is provided orally, a written submission must be provided within five days:
a) A description of the indirect discharge and cause of noncompliance; b) The period of noncompliance, including exact dates and times or, if not corrected, the anticipated time the noncompliance is expected to continue; and c) Steps being taken and/or planned to reduce, eliminate, and prevent recurrence of the noncompliance.
d) In any enforcement proceeding, the user seeking to establish the occurrence of an upset shall have the burden ofproof.
e) Users will have the opportunity for a judicial determination on any claim of upset only in an enforcement action brought for noncompliance with categorical pretreatment standards.
f) Users shall control production of all discharges to the extent necessary to maintain compliance with categorical pretreatment standards upon reduction, loss, or failure of its treatment facility until the facility is restored or an alternative method of treatment is provided. This requirement applies in the situation where, among other things, the primary source ofpower of the treatment facility is reduced, lost, or fails.
Sec. 22-691. Prohibited discharge standards.
A user shall have an affirmative defense to an enforcement action brought against it for noncompliance with the general prohibitions in Section 22- 604 or the specific prohibitions in Sections 22-606 ( 1- 18) if it can prove that it did not know, or have reason to know, that its discharge, alone or in conjunction with discharges from other sources, would cause pass through or interference and that either:
1. A local limit exists for each pollutant discharged and the user was in compliance with each limit directly prior to, and during, the pass through or interference; or
2. No local limit exists, but the discharge did not change substantially in nature or constituents from the user's prior discharge when the City was regularly in compliance with its NPDES permit, and in the case of interference, was in compliance with applicable sludge use or disposal requirements.
Sec. 22-692. Bypass.
a) For the purpose ofthis section:
Bypass" means the intentional diversion of waste streams from any portion of a user' s treatment facility.
Severe property damage" means substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production.
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Packet Pg. 293 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) b) A user may allow any bypass to occur which does not cause pretreatment standards or requirements to be violated, but only ifit also is for essential maintenance to assure efficient operation. These bypasses are not subject to the provision of subsections ( c) and (d) of this section.
c) 1. If a user knows in advance of the need for a bypass, it shall submit prior notice to the pretreatment coordinator, at least ten days before the date of the bypass, if possible.
2. A user shall submit oral notice to the pretreatment coordinator of an unanticipated bypass that exceeds applicable pretreatment standards within twenty-four hours from the time it becomes aware of the bypass. A written submission shall also be provided within five days ofthe time the user becomes aware of the bypass. The written submission shall contain a description of the bypass and its cause; the duration of the bypass, including exact dates and times, and, ifthe bypass has not been corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce eliminate, and prevent reoccurrence of the bypass. The pretreatment coordinator may waive the written report on a case-by-case basis if the oral report has been received within twenty-four hours. d) 1. Bypass is prohibited, and the pretreatment coordinator may take an enforcement action against a user for a bypass, unless:
A. Bypass was unavoidable to prevent loss of life, personal injury, or severe property damage;
B. There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate backup equipment should have been installed in the exercise of 'reasonable engineering judgment to prevent a bypass which occurred during normal periods of equipment downtime or preventive maintenance; and
C. The user submitted notices as required under subsection ( c) ofthis section.
2. The pretreatment coordinator may approve an anticipated bypass, after considering its adverse effects, ifthe pretreatment coordinator determines that it will meet the three conditions listed in subsection (d) ( 1) ofthis section.
Sec. 22- 693. Pretreatment charges and fees.
The City may adopt reasonable fees for reimbursement of costs of setting up and operating the City pretreatment program which may include:
1. Fees for wastewater discharge permit applications including the cost of processing such applications;
2. Fees for monitoring, inspection, and surveillance procedures including the cost of collection and analyzing a user's discharge, and reviewing monitoring reports submitted by users;
3. Fees for reviewing and responding to accidental discharge procedures and construction;
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4. Fees for filing appeals; and
5. Other fees as the City may deem necessary to carry out the requirements contained herein. These fees relate solely to the matters covered by this division and are separate from all other fees, fines, and penalties chargeable by the City.
Sec. 22- 694. Severability.
If any provision of this chapter is invalidated by any court of competent jurisdiction (the remaining provisions shall not be effected and shall continue in full force and effect. ( Ord. No. 2001- 07, § 3; Ord. No. 2001- 08 § 3.)
Sec. 22-695. Conflicts.
In the event the provisions of this article conflict with other provisions of this chapter, the provisions ofthis article shall control. ( Ord. No. 2001- 07, § 3; Ord. No. 2001- 08, § 3.) Secs. 22-696- 22-699. Reserved.
ARTICLE VII. STORMWATER REGULATIONS, USE AND STORM SEWER
CONSTRUCTION
DIVISION 1. GENERALLY
Sec. 22- 700. Scope
a) This article implements the National Pollutant Discharge Elimination System ( NPDES) General Permit for Waste Discharge Requirements ( WDR' s) for Storm Water Discharges from Small Municipal Separate Storm Sewer Systems ( MS4' s) as adopted by the State Water Resources Control Board Order NO. 2013 -001 -DWQ with NPDES NO. CAS000004 as amended by the State Water Resources Control Board (SWRCB). Referred to as the Permit in this article. b) Nothing is this article permits the violation ofthe Permit adopted by the State. c) The Permit requires the City to adopt standards to implement the conditions ofthe Permit.
Standards will be adopted by resolution ofthe City Council as a Storm Water Management Plan SWMP). In some cases, standards are in other Chapters ofthe City Code. d) In addition to the Permit, the provisions of this article shall be interpreted in accordance with the definitions set forth in section 22- 701.
e) The provisions of this article shall apply to the direct or indirect discharge of all liquid wastes carried to facilities of the City. This article among other things provides for the regulation of storm water construction in areas within the City, the quantity and quality of discharged wastes, the degree of pretreatment required, the setting of storm water discharge fees to provide for equitable distribution of costs, the approval of plans for storm water construction, and the establishment of penalties for violation of this article. f) The purpose of this article is to restore and maintain the water quality of receiving waters and further ensure the health, safety and general welfare of the citizens of the City of El Centro by effectively prohibiting nonstorm water discharges, including spills, dumping, and disposal of materials other than storm water, to the MS4; and by reducing pollutants in discharges from the MS4 to receiving waters to the maximum extent practicable, in a manner pursuant to and Al6-01621Sewer Ordinance CH 22 49
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Packet Pg. 295 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) consistent with the Federal Water Pollution Control Act [ Clean Water Act, 33 U.S. C. section 1251 et seq.] and the MS4 permit.
Sec. 22- 701 Definitions
The definitions set in this section shall be used in the interpretation of this article, the making of charges for service, and all other operations of this article unless another meaning for the word is apparent from the context:
Administrative enforcement order means any of the administrative remedies provided in El Centro City Code Chapter 18, Article XI.
Best management practices [ BMPs] means schedules of activities, prohibitions of practices, general good housekeeping practices, pollution prevention and educational practices, maintenance procedures, and other management practices to prevent or reduce to the maximum extent practicable the discharge of pollutants directly or indirectly to receiving waters. BMPs also include treatment requirements, operating procedures, and practices to control plant site runoff, spillage or leaks, sludge or waste disposal, and drainage from raw materials storage.
Employee trainingprogram means a documented curriculum that a business may be required to implement pursuant to a storm water pollution prevention plan for the purpose of educating its employees on methods ofreducing the discharge ofpollutants to the MS4.
Enforcement agency means the City of El Centro or its authorized agents charged with ensuring compliance with this Division.
Enforcement official means the City Manager or his designee or any agent of the City authorized to enforce compliance with this Division.
General Storm Water NPDES permit means any NPDES permit issued by the State Water Resources Control Board in accordance with 40 Code of Federal Regulations section 122.28.
Groundwater means subsurface water that occurs beneath the water table in soils and geologic formations that are fully saturated.
Illicit connection means any man-made physical connection to the MS4 that conveys an illicit discharge.
Illicit discharge include all non-storm water discharges not otherwise authorized in the MS4 permit, except discharges allowed under a NPDES permit and discharges conditionally allowed under the MS4 permit, as described in this section. Illicit discharge includes discharges from organized car washes, mobile cleaning and pressure wash operations discharged to the MS4.
Incidental runoff is the small amount of runoff that is generated from lawn irrigation, or residential car washing in driveways as identified in the MS4 permit. Generally, incidental runoff remains in front ofthe property.
Jurisdictional Runoff Management Program. The plan established and adopted by the City which provides a written description of the runoff management measures and programs, including minimum BMPs, which the City will implement to ensure compliance with this Division. These documents shall be known collectively as the Jurisdictional Runoff Management Program. The Jurisdictional Runoff Management Program and any amendments shall be approved by resolution ofthe City Council.
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Packet Pg. 296 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Maximum extent practicable [ MEP] has the same meaning as defined in Regional Water Quality Control Board Order No. 2013- 0001- DWQ, NPDES No. CAS000004, Attachment I.
Municipal separate storm sewer system [ MS4] means a conveyance or system of conveyances ( including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains): ( i) owned or operated by the City; ( ii) designated or used for collecting or conveying storm water; (iii) which is not a combined sewer; and (iv) which is not part of the City sewer system as defined at 40 Code of Federal Regulations section 122. 26.
National Pollutant Discharge Elimination System Permit [ NPDES permit] means a permit issued by the Regional Water Quality Control Board or the State Water Resources Control Board pursuant to Division 7 of the California Water Code to control discharges from point sources to receiving waters.
Non -storm water discharge means any discharge to or from the MS4 that is not entirely composed of storm water, including illicit discharges and discharges allowed under an NPDES permit.
Permit means the National Pollutant Discharge Elimination System (NPDES) General Permit for Waste Discharge Requirements ( WDR' s) for Storm Water Discharges from Small Municipal Separate Storm Sewer Systems ( MS4' s) as adopted by the State Water Resources Control Board Order NO. 2013- 001- DWQ with NPDES NO. CAS000004 as amended by the State Water Resources Control Board (SWRCB). Also referred to as MS4 Permit.
Pollutant means any agent introduced to the MS4 that may cause or contribute to the degradation of water quality such that public health, the environment, or beneficial uses of receiving waters may be affected. Pollutants include solid waste, sewage, garbage, medical waste, wrecked or discarded equipment, radioactive materials, dredged spoil, rock, sand, industrial waste, any organic or inorganic contaminant, fecal coliform, fecal streptococcus, enterococcus, volatile organic surfactants, oil and grease, petroleum hydrocarbons, total organic lead, copper, chromium, cadmium, silver, nickel, zinc, cyanides, phenols, and biocides.
Premises means any building, lot, parcel, land or portion of land whether improved or unimproved.
Public nuisance has the same meaning as in E1 Centro City Code section 18- 53.
Receiving waters means waters of the United States, as defined under the Clean Water Act.
Receiving waters include surface bodies of water that serve as discharge points for the MS4, such as creeks, rivers, reservoirs, lakes, lagoons, estuaries, harbors, bays and the Pacific Ocean.
Regional Water Quality Control Board ( R WQCB) means the California Regional Water Quality Control Board, Colorado River Basin Region.
Responsible person has the same meaning as in El Centro City Code section 18- 131 ( o).
Small municipal separate storm sewer system permit [ MS4 permit] means Regional Water Quality Control Board Order No. 2013- 0001- DWQ, NPDES No. CAS000004, as it may be amended. Also referred to as Permit.
Storm water means storm water runoff, surface runoff, and drainage resulting from precipitation events.
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Packet Pg. 297 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Storm water pollution prevention plan means a document that describes the BMPs to be implemented by the owner or operator to eliminate or reduce to the MEP discharges ofpollutants to the MS4.
Sec. 22- 702. Administration of article
a) Except as otherwise provided herein, the City manager shall administer, implement, and enforce the provisions of this article. The City Manager may delegate any powers granted to or duties imposed upon the City Manager.
Sec. 22- 703. Illicit Discharges
a) Discharges of waste from the MS4 that are prohibited by Statewide Water Quality Control Plans or applicable Regional Water Quality Control Plans (Basin Plans) are prohibited. b) Discharges of storm water from the MS4 to waters of the U.S. in a manner causing or threatening to cause a condition of pollution or nuisance as defined in Water Code § 13050 are prohibited.
c) Discharges through the MS4 of material other than storm water to waters ofthe U.S. shall be effectively prohibited, except as allowed under section 22- 704 or as otherwise authorized by a separate NPDES permit.
d) Discharges as described in sections 23- 6 and 23- 7 of the City code are considered excessive and shall be controlled at all times.
Parties responsible for controlling runoff shall:
1) Detect leaks ( for example, from broken sprinkler heads) and correct the leaks within 72 hours oflearning ofthe leak;
2) Properly design and aim sprinkler heads;
3) Not irrigate during rain events; and
4) Implement the Storm Water Management Plan approved for their facility. This applies to construction projects, industrial, and governmental facilities. 5) Non -storm water runoff discharge that is not incidental is prohibited, unless otherwise specified in Section 22- 704 and Section 22- 705.
Section 22-704 Conditionally Allowed Non -Storm Water Discharges a) The following non -storm water discharges are not prohibited provided any pollutant discharges are identified and appropriate control measures to minimize the impacts of such discharges, are developed and implemented under the City' s storm water program. This section does not obviate the need to obtain any other appropriate permits for such discharges. 1) individual residential car washing;
2) discharges from potable water sources;
3) air conditioning condensation;
4) incidental runoff from landscaped areas.
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Packet Pg. 298 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) b) Discharges or flows from fire -fighting activities are excluded from the effective prohibition against non -storm water and need only be addressed where they are identified as significant sources of pollutants to waters of the U.S.
Section 22-705 Conditionally Allowed Non -Storm Water Discharges that require a permit. a) The following non -storm water discharges are not prohibited provided any pollutant discharges are identified and appropriate control measures to minimize the impacts of such discharges, are developed and implemented under the City' s storm water program.
These discharges require a permit from the City prior to discharge. 1) water line flushing;
2) uncontaminated pumped ground water;
3) discharges from potable water sources; and
4) dechlorinated swimming pool discharges;
b) To obtain a permit, notify the Compliance Specialist at 760 337 4538, or complete the form located on the City website.
Section 22- 706 Illicit Connections Prohibited
It is unlawful for any person to establish, use, or maintain any illicit connection to the City Storm Water System. This section expressly supersedes any City permit or earlier authorization for said discharge.
Section 22- 707 Reduction ofPollutants in Storm Water
Any person engaged in activities which may result in discharges to the MS4 shall, to the MEP, undertake all measures to reduce the risk of non—storm water discharges and pollutant discharges. The following requirements shall apply:
a) BMP Implementation.
Every person undertaking any activity or use of premises that may cause or contribute to storm water pollution or contamination, illicit discharges, or non -storm water discharges to the MS4 shall comply with BMP guidelines or pollution control requirements, as may be established by the enforcement official. BMPs shall be maintained routinely throughout the life of the activity. Such BMPs include the minimum BMPs set forth in the current Jurisdictional Runoff Management Program.
b) Storm Water Pollution Prevention Plan.
The enforcement official may require any business or operation that is engaged in activities which may result in pollutant discharges to the MS4 to develop and implement a storm water pollution prevention plan, which must include an employee training program and the applicable minimum BMPs from the current Jurisdictional Runoff Management Program. c) Coordination with Hazardous Materials Release Response Plans and Inventory.
Any activity subject to the Hazardous Materials Release Response Plan, Chapter 6.95 of the California Health and Safety Code, shall include in that Plan provisions for compliance with this Division, including the prohibitions on non -storm water discharges and illicit discharges, and the requirement to reduce release ofpollutants to the MS4 to the MEP.
A16-01621Sewer Ordinance CH 22 53
9.b
Packet Pg. 299 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) d) New Developments and Redevelopments.
All new development and redevelopment activities shall comply with the development standards as adopted by the City Council.
e) Compliance with General Storm Water NPDESpermits.
Each discharger that is subject to any General Storm Water NPDESpermit shall comply with all requirements of such permit. For those activities that discharge to the MS4 under a General Storm Water NPDES permit, the discharger shall submit their monitoring data and analytical evaluation/assessment to the City at the same time their reports are submitted to the Regional Water Quality Control Board.
Section 22- 708 Containment and Notification of Spills
Any person owning or occupying a premises who has knowledge of any significant release of pollutants or non -storm water discharges from those premises that may enter the MS4 shall immediately take all reasonable action to contain the release and minimize any non -storm water discharge. Such person shall notify the enforcement agency within 24 hours of the non -storm water discharge occurrence.
Section 22- 709 MS4 Protection
Any person owning or occupying premises through which the MS4 passes shall:
a) Keep and maintain that part of the premises reasonably free of trash, debris and other obstacles which would pollute, contaminate, or retard the flow of water through the MS4; and b) Maintain existing structures within or adjacent to the MS4 so that those structures will not become a hazard to the use, function, or physical integrity of the MS4.
Section 22- 710 Enforcement Authority
a) The enforcement agency and enforcement official may exercise any enforcement powers as provided in El Centro City Code Chapter 18, articles X and XI, as may be necessary to effectively implement and enforce this Division.
b) In addition to the general enforcement powers provided in El Centro City Code Chapter 18, the enforcement agency and enforcement official may exercise any of the following supplemental enforcement powers as may be necessary to fulfill the purposes ofthis Division:
1) Sampling Authority. During any inspection, the enforcement official may take samples deemed necessary in order to implement and enforce the provisions of this Division. This may include the installation of sampling and metering devices on private property, or requiring the responsible person to supply samples.
2) Administrative Enforcement Order. The enforcement official may issue an administrative enforcement order to any responsible person to cease and desist all activities that may cause or contribute to a discharge in violation of this Division. This order may require the responsible person to: ( i) comply with the applicable provisions and policies that govern this Division; (ii) comply within the designated time frame for compliance; ( iii) take appropriate remedial or preventative action to keep the violation from recurring.
A16-01621Sewer Ordinance CH 22 54
9.b
Packet Pg. 300 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) 3) Monitoring and Mitigation. The enforcement official may require reasonable monitoring of discharges from any premises to the MS4 and shall have authority to order the mitigation of circumstances that may result in illicit discharges.
4) Storm water pollution prevention plan. The enforcement official shall have the authority to establish elements of a storm water pollution prevention plan, and to require any business or operation to adopt and implement such a plan pursuant to Section 22-707(b). 5) Employee training program. The enforcement official shall have the authority to establish the elements of an employee training program, and to require any business or operation to adopt and implement such a plan as part of a storm water pollution prevention plan. 6) Best management practices. The enforcement official may require additional BMPs to be implemented for any premises pursuant to Section 22- 707( a). c) Jurisdictional Runoff Management Program. The City may establish and adopt a written description ofthe runoff management measures and programs, including minimum BMPs, which the City will implement to ensure compliance with this Division. These documents shall be known collectively as the Jurisdictional Runoff Management Program. Amendments to the Jurisdictional Runoff Management Program shall be approved by the City Council.
Section 22- 711 Enforcement Remedies
a) Violation of this article and the Jurisdictional Runoff Management Program is an infraction. Refer to Section 18- 200 through Section 18- 317 for the procedure relating to enforcement.
Section 3. Effective Date: This ordinance shall be effective 30 days from the date of its adoption.
Section 4. Summary: The proposed ordinance:
a) Changes the City Code requirements for sewers and sewer disposal regulations and restrictions as mandated by the State of California and EPA. b) Modifies article II to eliminate the use ofpit privies.
C) Modifies article III to comply with the LAMP (Local Agency Management Program) for septic systems.
d) Adds article VII to include Storm Water Requirements to maintain compliance with the MS4 Permit (Municipal Separate Storm Sewer System).
e) Updates Pretreatment requirements in article VI to current standards. f) Provides additional definitions and clarifications to existing standards.
A16-01621Sewer Ordinance CH 22 55
9.b
Packet Pg. 301 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) INTRODUCED at a regular meeting of the City Council of the City of El Centro California, held on the 7th day of Feb. , 2017.
PASSED AND ADOPTED at a regular meeting of the City Council of the City of EI Centro, California, held on the 21st day of Feb., 2017.
CITY OF EL CENTRO
By:
Alex Cardenas, Mayor
ATTEST:
B4Pane Caldwell, City Clerk
APPROVED AS TO FORM:
Office of the City Attorney
STATE OF CALIFORNIA )
COUNTY OF IMPERIAL ) ss
CITY OF EL CENTRO )
I, L. Diane Caldwell, City Clerk of the City of El Centro, California, do hereby certify that the foregoing Ordinance No. 17- 02 had its first reading on Feb. 7, 2017, and had its second reading on Feb. 21, 2017, and was passed by the following vote:
AYES: Jackson,
NOES: None
ABSENT: None
ABSTAINED: None
AYES: Jackson,
NOES: None
ABSENT: None
ABSTAINED: None
Silva, Cardenas, Viegas- Walker, Garcia
Silva, Cardenas, Viegas- Walker, Garcia
f
Y:
iane Caldwell, City Clerk
A16-016Mewer Ordinance CH 22 56
9.b
Packet Pg. 302 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) El Centro Sewer System Management Plan
Appendix D
Updated Sewer Collection System Map
9.b
Packet Pg. 303 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) N La Brucherie Rd
Joshua Tree St
La Brucherie Rd
Yucca St
d Austin Rd
Lotus Canal
W Main St
S 19th St
S 23rd St
Lotus Ave
Glenwood Dr
Orange Ave W
S La Brucherie Rd
Austin Rd
Lotus Canal
Dahlia
Canal
Austin Rd
e Rd
Austin Rd
S La Brucherie Rd La Brucherie Rd
N Water
man Ave
Fonzie Ave
Bradshaw Ave
Treshill Rd
County Rd
Cross Rd
De Paoli St
Cruickshank Dr
12th Rd
W Aten Rd
N 8th St Clark Rd
86 S31 Oak Rd S 6th St
W Olive Ave E Olive Ave S 7th St
E Holt Ave
S 10th St
S Waterman Ave
W Main St S 12th St
N 12th St
W State St
W Brigh ton Ave
N 3rd St
Broadway St
Wake Ave
S 1st St
N 4th St
S Ne
w St
3rd St
N 10th St
2nd St
W Aurora Dr
Pico Ave Pico Rd
E Villa Ave
W Main St
N 8th St S 8th St
Dogwood Rd S Dogwood Rd
W Ross Ave E Ross Ave
E Main St
Ross Ave
86 86
86 S31
S80
8 8
8 8
Desert Trails RV
Park & Golf
Course
El Cent ro Adams Park
Date Canal
Farnsworth Ln
Danenberg Dr
W Horne Rd
W McCabe Rd
S Clark Rd S Clark Rd
S Dogwood Rd S Dogwood Rd
S31
86 86
Cruicksha
E Ate
E Dealwood
E Villa Ave
Cooley Rd
Evergreen
CemeteryPitzer Rd
Imperial Valley
Mall
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Appendix E
Notification Requirements
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City of El Centro Sewer System Management Plan
NOTIFICATION REQUIREMENTS
E-1 Notification of Spills of 1,000 Galloons or Greater to the California Office of Emergency Services
Per Water Code section 13271, for a spill that discharges in or on any waters of the State, or discharges or is deposited where it is, or probably will be, discharged in or on any waters of the State, the City shall notify the California Office of Emergency Services and obtain a California Office of Emergency Services Control Number as soon as possible but no later than two (2) hours after:
• The City has knowledge of the spill; and
• Notification can be provided without substantially impeding cleanup or other emergency measures.
The notification requirements in this section apply to individual spills of 1,000 gallons or greater, from an City-owned and/or operated laterals, to a water of the State.
The control number must be referred to in all communication, oral and written.
E-2 Spill Notification Information
The City shall provide the following spill information to the California Office of Emergency Services before receiving a Control Number, as applicable:
• Name and phone number of the person notifying the California Office of Emergency Services; • Estimated spill volume (gallons);
• Estimated spill rate from the system (gallons per minute); • Estimated discharge rate (gallons per minute) directly into waters of the State or indirectly into a drainage conveyance system;
• Spill incident description:
o Brief narrative of the spill event, and
o Spill incident location (address, city, and zip code) and closest cross streets and/or landmarks; • Name and phone number of contact person on-scene;
• Date and time the City was informed of the spill event; • Name of sanitary sewer system causing the spill;
• Spill cause or suspected cause (if known);
• Amount of spill contained;
• Name of receiving water body receiving or potentially receiving discharge; and
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• Description of water body impact and/ or potential impact to beneficial uses.
E-3 Notification of Spill Report Updates
Following the initial notification to the California Office of Emergency Services and until such time that the City certifies the spill report in the online CIWQS Sanitary Sewer System Database, the City shall provide updates to the California Office of Emergency Services regarding substantial changes to:
• Estimated spill volume (increase or decrease in gallons initially estimated); • Estimated discharge volume discharged directly into waters of the State or indirectly into a drainage conveyance system (increase or decrease in gallons initially estimated); and • Additional impact(s) to the receiving water(s) and beneficial uses.
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Reporting Requirements
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City of El Centro Sewer System Management Plan
REPORTING REQUIREMENTS
All reporting required in the General Order must be submitted electronically to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov), unless specified otherwise in the General Order. Electronic reporting may solely be conducted by a Legally Responsible Official or Data Submitter(s) previously designated by the Legally Responsible Official, as required in section 5.8 (Designation of Data Submitters) of the General Order.
The City shall report any information that is protected by the Homeland Security Act, by email to [email protected], with a brief explanation of the protection provided by the Homeland Security Act for the subject report to be protected from unauthorized disclosure and/or public access, and for official Water Board regulatory purposes only.
F-1 Reporting Requirements for Individual Category 1 Spill Reporting
F-1-1 Draft Spill Report for Category 1 Spills
Within three (3) business days of the City’s knowledge of a Category 1 spill, the City shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.
The Draft Spill Report must, at minimum, include the following items:
1. Contact information: Name and telephone number of City contact person to respond to spill-specific questions;
2. Spill location name;
3. Date and time the City was notified of, or self-discovered, the spill;
4. Operator arrival time;
5. Estimated spill start date and time;
6. Date and time the City notified the California Office of Emergency Services, and the assigned control number;
7. Description, photographs, and GPS coordinates of the system location where the spill originated; a. If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;
8. Estimated total spill volume exiting the system;
9. Description and photographs of the extent of the spill and spill boundaries;
10. Did the spill reach a drainage conveyance system? If Yes:
a. Description of the drainage conveyance system transporting the spill; b. Photographs of the drainage conveyance system entry location(s); Page202
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c. Estimated spill volume fully recovered from the drainage conveyance system; d. Estimated spill volume remaining within the drainage conveyance system;
11. Description and photographs of all discharge point(s) into the surface water;
12. Estimated spill volume that discharged to surface waters; and
13. Estimated total spill volume recovered.
F-1-2 Certified Spill Report for Category 1 Spills
Within 15 calendar days of the spill end date, the City shall submit a Certified Spill Report for Category 1 spills, to the online CIWQS Sanitary Sewer System Database.
Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.
The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.1.1 (Draft Spill Report for Category 1 Spills) above:
1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;
2. Spill end date and time;
3. Description of how the spill volume estimations were calculated, including at a minimum:
a. The methodology, assumptions and type of data relied upon, such as supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and
b. The methodology(ies), assumptions and type of data relied upon for estimations of the spill start time and the spill end time;
4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);
5. System failure location (for example, main, lateral, pump station, etc.);
6. Description of the pipe material, and estimated age of the pipe material, at the failure location;
7. Description of the impact of the spill;
8. Whether or not the spill was associated with a storm event;
9. Description of spill response activities including description of immediate spill containment and cleanup efforts;
10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;
11. Spill response completion date;
12. Detailed narrative of investigation and investigation findings of cause of spill;
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13. Reasons for an ongoing investigation (as applicable) and the expected date of completion;
14. Name and type of receiving water body(s);
15. Description of the water body(s), including but not limited to:
a. Observed impacts on aquatic life,
b. Public closure, restricted public access, temporary restricted use, and/or posted health warnings due to spill,
c. Responsible entity for closing/restricting use of water body, and d. Number of days closed/restricted as a result of the spill.
16. Whether or not the spill was located within 1,000 feet of a municipal surface water intake; and
17. If water quality samples were collected, identify sample locations and the parameters the water quality samples were analyzed for. If no samples were taken, Not Applicable shall be selected.
F-1-3 Spill Technical Report for Individual Category 1 Spill in which 50,000 Gallons or Greater Discharged into a Surface Water
For any spill in which 50,000 gallons or greater discharged into a surface water, within 45 calendar days of the spill end date, the City shall submit a Spill Technical Report to the online CIWQS Sanitary Sewer System Database. The Spill Technical Report, at minimum, must include the following information:
1. Spill causes and circumstances, including at minimum:
a. Complete and detailed explanation of how and when the spill was discovered; b. Photographs illustrating the spill origin, the extent and reach of the spill, drainage conveyance system entrance and exit, receiving water, and post-cleanup site conditions; c. Diagram showing the spill failure point, appearance point(s), the spill flow path, and ultimate destinations;
d. Detailed description of the methodology employed, and available data used to calculate the discharge volume and, if applicable, the recovered spill volume; e. Detailed description of the spill cause(s);
f. Description of the pipe material, and estimated age of the pipe material, at the failure location; g. Description of the impact of the spill;
h. Copy of original field crew records used to document the spill; and i. Historical maintenance records for the failure location.
2. City’s response to the spill:
a. Chronological narrative description of all actions taken by the City to terminate the spill;
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b. Explanation of how the Sewer System Management Plan Spill Emergency Response Plan was implemented to respond to and mitigate the spill; and
c. Final corrective action(s) completed and a schedule for planned corrective actions, including:
i. Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable,
ii. Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences, and
iii. Necessary modifications to the Emergency Spill Response Plan to incorporate lessons learned in responding to and mitigating the spill.
3. Water Quality Monitoring, including at minimum:
a. Description of all water quality sampling activities conducted; b. List of pollutant and parameters monitored, sampled and analyzed; as required in Appendix H; c. Laboratory results, including laboratory reports;
d. Detailed location map illustrating all water quality sampling points; and e. Other regulatory agencies receiving sample results (if applicable).
4. Evaluation of spill impact(s), including a description of short-term and long-term impact(s) to beneficial uses of the surface water.
F-1-4 Amended Certified Spill Reports for Individual Category 1 Spills The City shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database. The City shall certify the amended report.
After 90 calendar days, the City shall contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the Amended Spill Report due date.
F-2 Reporting Requirements for Individual Category 2 Spill Reporting
F-2-1 Draft Spill Report for Category 2 Spills
Within three (3) business days of the City’s knowledge of a Category 2 spill, the City shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.
The Draft Spill Report must, at minimum, include the following items:
1. Contact information: Name and telephone number of City contact person to respond to spill-specific questions;
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2. Spill location name;
3. Date and time the City was notified of, or self-discovered, the spill;
4. Operator arrival time;
5. Estimated spill start date and time;
6. Date and time the City notified the California Office of Emergency Services, and the assigned control number;
7. Description, photographs, and GPS coordinates of the system location where the spill originated; If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;
8. Estimated total spill volume exiting the system;
9. Description and photographs of the extent of the spill and spill boundaries;
10. Did the spill reach a drainage conveyance system? If Yes:
a. Description of the drainage conveyance system transporting the spill; b. Photographs of the drainage conveyance system entry location(s); c. Estimated spill volume fully recovered from the drainage conveyance system; d. Estimated spill volume remaining within the drainage conveyance system; e. Estimated spill volume discharged to a groundwater infiltration basin or facility, if applicable; and
11. Estimated total spill volume recovered.
F-2-2 Certified Spill Report for Category 2 Spills
Within 15 calendar days of the spill end date, the City shall submit a Certified Spill Report for the Category 2 spill, to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov). Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.
The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.2.1 (Draft Spill Report for Category 2 Spills) above:
1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;
2. Spill end date and time;
3. Description of how the spill volume estimations were calculated, including at a minimum:
a. The methodology, assumptions and type of data relied upon, such as supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and
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b. The methodology(ies), assumptions and type of data relied upon for estimations of the spill start time and the spill end time;
4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);
5. System failure location (for example, main, pump station, etc.);
6. Description of the pipe/infrastructure material, and estimated age of the pipe material, at the failure location;
7. Description of the impact of the spill;
8. Whether or not the spill was associated with a storm event;
9. Description of spill response activities including description of immediate spill containment and cleanup efforts;
10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;
11. Spill response completion date;
12. Detailed narrative of investigation and investigation findings of cause of spill;
13. Reasons for an ongoing investigation (as applicable) and the expected date of completion; and
14. Whether or not the spill was located within 1,000 feet of a municipal surface water intake.
F-2-3 Amended Certified Spill Reports for Individual Category 2 Spills The City shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database. The City shall certify the amended report.
After 90 calendar days, the City shall contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the Amended Spill Report due date.
F-3 Monthly Certified Spill Reporting for Category 3 Spills The City shall report and certify all Category 3 spills to the online CIWQS Sanitary Sewer System Database within 30 calendar days after the end of the month in which the spills occurred. (For example, all Category 3 spills occurring in the month of February shall be reported and certified by March 30th). After the Legally Responsible Official certifies the spills, the online CIWQS Sanitary Sewer System Database will issue a spill event identification number for each spill.
The monthly reporting of all Category 3 spills must include the following items for each spill:
1. Contact information: Name and telephone number of City contact person to respond to spill-specific questions;
2. Spill location name;
3. Date and time the City was notified of, or self-discovered, the spill;
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4. Operator arrival time;
5. Estimated spill start date and time;
6. Description, photographs, and GPS coordinates where the spill originated:
a. If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;
7. Estimated total spill volume exiting the system;
8. Description and photographs of the extent of the spill and spill boundaries;
9. Did the spill reach a drainage conveyance system? If Yes:
a. Description of the drainage conveyance system transporting the spill; b. Photographs of the drainage conveyance system entry locations(s); c. Estimated spill volume fully recovered from the drainage conveyance system; and d. Estimated spill volume discharged to a groundwater infiltration basis or facility, if applicable.
10. Estimated total spill volume recovered;
11. Description of the spill event destination(s), including GPS coordinates, if available, that represent the full spread and reaches of the spill;
12. Spill end date and time;
13. Description of how the spill volume estimations were calculated, including, at minimum:
a. The methodology and type of data relied upon, including supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and
b. The methodology and type of data relied upon to estimate the spill start time, on-going spill rate at time of arrival (if applicable), and the spill end time;
14. Spill cause(s) (for example, root intrusion, grease deposition, etc.);
15. System failure location (for example, main, pump station, etc.);
16. Description of the pipe/infrastructure material, and estimated age of the pipe/infrastructure material, at the failure location;
17. Description of the impact of the spill;
18. Whether or not the spill was associated with a storm event;
19. Description of spill response activities including description of immediate spill containment and cleanup efforts;
20. Description of spill corrective actions, including steps planned or taken to reduce, eliminate, and prevent
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reoccurrence of the spill, and a schedule of the major milestones for those steps; including, at minimum:
a. Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable, and
b. Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences at the same spill event location, including:
i. Adjusted schedule/method of preventive maintenance,
ii. Planned rehabilitation or replacement of sanitary sewer asset, iii. Inspected, repaired asset(s), or replaced defective asset(s), iv. Capital improvements,
v. Documentation verifying immediately implemented system modifications and operating/maintenance modifications,
vi. Description of spill response activities,
vii. Spill response completion date, and
viii. Ongoing investigation efforts, and expected completion date of investigation to determine the full cause of spill;
21. Detailed narrative of investigation and investigation findings of cause of spill.
F-4 Monthly Certified Spill Reporting for Category 4 Spills The City shall report and certify the estimated total spill volume exiting the sanitary sewer system, and the total number of all Category 4 spills to the online CIWQS Sanitary Sewer System Database, within 30 calendar days after the end of the month in which the spills occurred.
F-5 Amended Certified Spill Reports for Category 3 Spills Within 90 calendar days of the certified Spill Report due date, the City may update or add additional information to a certified Spill Report by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database. The City shall certify the amended report.
After 90 calendar days, the Legally Responsible Official shall contact the State Water Board at [email protected] to request to amend a certified Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the 90-day timeframe for amending the certified Spill Report, as provided above.
F-6 Annual Certified Spill Reporting of Category 4 and/or Lateral Spills
For all Category 4 spills and spills from its owned and/or operated laterals that are caused by a failure or blockage in the lateral and that do not discharge to a surface water, the City shall:
• Maintain records per section 6.14;
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The City shall provide records upon request by State Water Board or Regional Water Board staff. • Annually upload and certify a report, in an appropriate digital format, of all recordkeeping of spills to the online CIWQS Sanitary Sewer System Database, by February 1st after the end of the calendar year in which the spills occurred.
A spill from an City-owned and/or operated lateral that discharges to a surface water is a Category 1 spill; the City shall report all Category 1 spills per section 12.1 of Appendix G.
F-7 Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills”
If either (1) no spills occur during a calendar month or (2) only Category 4, and/or City-owned and/or operated lateral spills (that do not discharge to a surface water) occur during a calendar month, the City shall certify, within 30 calendar days after the end of each calendar month, either a “No-Spill” certification statement, or a “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” certification statement, in the online CIWQS Sanitary Sewer System Database, certifying that there were either no spills, or Category 4 and/or Non-Category 1 Lateral Spills that will be reported annually (per section 12.6 of Appendix G) for the designated month.
If a spill starts in one calendar month and ends in a subsequent calendar month, and the City has no further spills of any category, in the subsequent calendar month, the City shall certify “no-spills” for the subsequent calendar month.
If the City has no spills from its systems during a calendar month, but the City voluntarily reported a spill from a private lateral or a private system, the City shall certify “no-spills” for that calendar month.
If the City has spills from its owned and/or operated laterals during a calendar month, the City shall not certify “no spills” for that calendar month.
F-8 Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ)
The City shall update their previous year’s Annual Report, by April 1 of each year after the Effective Date of the General Order, for each calendar year (January 1 through December 31).
The Annual Report must be entered directly into the online CIWQS Sanitary Sewer System Database. The City’s Legally Responsible Official shall certify the Annual Report as instructed in CIWQS; The Annual Report must address, and update as applicable, the following items:
• Population served;
• Updated sewer system service area boundary map, if service area boundary has changed from original map submitted per section 5.14 (Electronic Sanitary Sewer System Service Area Boundary Map) of the General Order;
• Number of system operation and maintenance staff:
o Entry level (less than two years of experience),
o Journey level (greater than two years of experience),
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City of El Centro Sewer System Management Plan
o Supervisory level, and
o Managerial level;
• Number of operation and maintenance staff certified as a certified collection system operator by the California Water Environmental Association (CWEA), with:
o Corresponding number of certified collection system operator grade levels (Grade I, II, III, IV, and V);
• System information:
o Miles of system gravity and force mains,
o Number of upper and lower service laterals connected to system, o Estimated number of upper and lower laterals owned and/or operated by the City, o Portion of laterals that is City’s responsibility,
o Average age the major components of system infrastructure, o Number and age of pump stations, and
o Estimated total miles of the system pipeline not accessible for maintenance; • Name and location of the treatment plant(s) receiving sanitary sewer system’s waste; • Name of satellite sewer system tributaries;
• Number of system’s gravity sewer above or underground crossings of water bodies throughout system; • Number of force main (pressurized pipe) above or underground crossings of water bodies throughout system;
• Number of siphons used to convey waste throughout the sewer system; • Miles of sewer system cleaned;
• Miles of sewer system video inspected, or comparable (i.e., video closed-circuit television or alternative inspection methods);
• System Performance Evaluation as specified in section 5.11 (System Performance Analysis) of the General Order;
• Major spill causes (for example, root intrusion, grease deposition); • System infrastructure failure points (for example, main, pump station, lateral, etc.); • Ongoing spill investigations; and
• Actions taken to address system deficiencies.
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Water Quality Monitoring Plan
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City of El Centro
Sanitary Sewer Spill Water Quality
Monitoring Plan
FEBRUARY 2024
Prepared for:
CITY OF EL CENTRO
307 W. Brighton
El Centro, CA 92243
Contact: Abraham Campos
Prepared by:
605 Third Street
Encinitas, California 92024
Contact: Shannon Brown, PE
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-consumer recycled material.
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SANITARY SEWER SPILL MONITORING PLAN
14650.02 i FEBRUARY 2024
Table of Contents
SECTION PAGE NO.
1 Introduction .......................................................................................................................................................... 3 2 Background .......................................................................................................................................................... 4
2.1 Spill Monitoring Plan Framework ........................................................................................................... 4
2.2 Geographic Setting ................................................................................................................................. 6
2.3 El Centro Assets ...................................................................................................................................... 8
2.4 Potential Monitoring Locations .............................................................................................................. 8
2.5 Water Quality Sample Constituents ...................................................................................................... 8 3 Monitoring Site Selection ................................................................................................................................. 12 4 Sample Collection Overview ............................................................................................................................. 14
4.1 Manual Sample Collection .................................................................................................................. 14
4.2 Flow Rate Estimation via Float Velocity Method ................................................................................ 15
4.3 Monitoring Equipment ......................................................................................................................... 15
4.4 Water Quality Laboratory .................................................................................................................... 16 5 Site Access and Safety Considerations ........................................................................................................... 16 6 Site Descriptions ............................................................................................................................................... 17
6.1 CENTRAL_DS ....................................................................................................................................... 18
6.2 CENTRAL_US ........................................................................................................................................ 20
6.3 DAHLIA_US ........................................................................................................................................... 22
6.4 LOTUS_US ............................................................................................................................................ 24
6.5 DATE_US .............................................................................................................................................. 26
6.6 DATE_NO3D_US .................................................................................................................................. 28
6.7 DATE_NO3_US ..................................................................................................................................... 30
6.8 HEBER_US ........................................................................................................................................... 32
6.9 CENTRAL_NO3_US .............................................................................................................................. 34
6.10 CENTRAL_NO5_US .............................................................................................................................. 36 7 Summary ........................................................................................................................................................... 38 8 References ........................................................................................................................................................ 39 Appendix A ....................................................................................................................................................................... 38 Appendix B ...................................................................................................................................................................... 40 Appendix C ...................................................................................................................................................................... 42
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SANITARY SEWER SPILL MONITORING PLAN
14650.02 ii FEBRUARY 2024
INTENTIONALLY LEFT BLANK
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SANITARY SEWER SPILL MONITORING PLAN
14650
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1 Introduction
The Sanitary Sewer System Spill water Quality Monitoring Plan (Monitoring Plan) provides technical information for water quality monitoring locations and techniques that may be used to characterize impacts in the event of a sanitary sewer spill (spill) within the City of El Centro (City) service area. In the event of a spill, it is assumed response actions identified in the City’s Spill Emergency Response Plan and Sewer System Management Plan will be implemented to protect public health and the environment.
Recent updates to the waste discharge requirements general order for sanitary sewer systems1 (WDR) require timely implementation of spill-specific notification, monitoring, and reporting tasks for spill events that exceed certain volume thresholds. In the event of a spill >50,000 gallons, the WDR outlines monitoring requirements generally aligned to estimate spill location and spread as well as receiving water conditions to support impact analysis documented in a spill report. This Monitoring Plan provides technical and procedural details to allow for rapid implementation of water quality monitoring activities that may be used to characterize the extent and magnitude of potential impacts related to a potential spill. These water quality activities are based on standard procedures implemented as part of municipal and industrial water quality monitoring programs.
Surface runoff in the geographical area served by City flows into Imperial Irrigation District (IID) drains. Receiving water quality monitoring has been conducted in IID drains as part of various compliance, special study, and third party efforts over the past two decades. The suite of previously monitored locations provides a resource for efficient identification of logistically-feasible locations for City spill response monitoring. Wet and/or dry weather water quality samples have been collected at these monitored locations. These data may be comparable to samples collected as part of a spill response or for other purposes.
The City operates and maintains a wide array of gravity sewer piping, manholes, pump stations, force mains, and other associated infrastructure. The location of major collection system assets and components, watershed configuration, drainage characteristics, safety, and accessibility were used to select a distributed array of water quality monitoring locations that may be used during a spill response event. In the event of a spill, it is recommended that City staff evaluate the spill size, location, duration, volume, and ambient weather conditions to develop a focused water quality monitoring strategy and monitoring plan.
The overall purpose of this document is to provide the following information:
• A geographic overview of City assets
• Sample locations that may be used for a spill response, including a summary of historical data • A summary of water quality monitoring methods and protocols • Site description and access information for a distributed array of water quality monitoring locations The following sections provide background information and sample collection methodology for the proposed monitoring locations. Detailed site descriptions for each proposed monitoring location are provided in Section 6. 1 Statewide Waste Discharge Requirements General Order for Sanitary Sewer Systems. Order WQ 2022-0103-DWQ
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2 Background
Wastewater and stormwater2 discharges from the City are regulated through state issued permits that define management, monitoring, and reporting requirements. These requirements, known as Waste Discharge Requirements (WDRs), are created based on evaluation of the City’s threat to water quality and quality of the receiving waters.
The City is considered to operate a Phase II small municipal separate storm sewer system (MS4) because the population is less than 100,000 and is not permitted under Phase I MS4 regulations. Under the Phase II MS4 Permit, the City monitors storm drain outfalls during dry weather to detect non-storm water discharges to its MS4.
Non-stormwater discharges may come from many sources including, but not limited to, illicit connections, illicit discharges, and sewage spills. Additional water quality monitoring, including receiving water monitoring, required by Phase II MS4 Permit Section E.13 and E.15 is not required since urban runoff from the City has not been determined to be a source of impairment for the receiving water bodies into which the MS4 discharges. Therefore, limited background information on the quality of the receiving water is available for comparison to water quality monitoring analysis collected as part of this Monitoring Plan.
2.1 Spill Monitoring Plan Framework
The WDR Attachment E1 (Appendix A) includes spill notification, spill location and spread observations, monitoring, and reporting requirements. Implementation requirements for these elements are summarized below.
Notification
For any spill that discharges in or on any waters of the State, the discharger is to notify the California Office of Emergency Services as soon as possible but no later than two (2) hours after: a) knowledge of the spill; and b) notification can be provided without interfering with cleanup/emergency measures.
Location and Spread Observations
In the event of a spill, the discharger is to visually assess the spill locations and extent using photography, global positioning system (GPS) and other tools. Key documentation:
• The system location where spill originated
o For multiple appearance points of a single spill event, the points closest to the spill origin. • Drainage conveyance system spill entry locations
• Locations where spill discharges to receiving waters
2 National Pollutant Discharge Elimination System (NPDES) General Permit for Waste Discharge Requirements (WDRs) for Storm Water Discharges from Small Municipal Separate Storm Sewer Systems (MS4s) Water Quality (WQ) Order 2013-0001-DWQ NPDES NO. CAS000004 as amended by Order WQ 2015-0133-EXEC, Order WQ 2016-0069-EXEC, WQ Order 2017-XXXX-DWQ, Order WQ 2018-0001-EXEC, and Order WQ 2018-0007-EXEC (Phase II MS4 Permit)
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• Extent of spread and locations of cleanup
Additionally, the discharger needs to estimate the spill volume using appropriate techniques, calculations, and documentation for electronic reporting.
Following spill volume estimation, the discharger is required to perform visual observations for spills that discharge to receiving waters. Key documentation:
• Estimated spill travel time to receiving water
o For spills entering a drainage conveyance system, this includes travel time from entry into the drainage conveyance system to receiving water discharge • Spill volume entering receiving water
• Photography:
o Waterbody bank erosion (if applicable)
o Floating matter
o Surface sheen (oil and grease)
o Discoloration of receiving waters
o “Impact”3 to receiving water
Monitoring
A spill estimated at 50,000 gallons or greater discharged to a receiving water requires the discharger to perform water quality monitoring. Monitoring must be conducted no later than 18-hours after the discharger’s knowledge of a potential discharge to a surface water.
Daily samples must be collected at the discharge point to the receiving water and at locations upstream and downstream of the discharge point. If the spill entered the receiving water from a drainage conveyance, a sample must be taken from within the conveyance as well. Upstream samples should be taken at a sufficient distance from the discharge point to capture ambient conditions absent of spill material. Downstream sample point must be taken far enough from the discharge point where the spill material is fully mixed with the receiving water.
Once collected, the samples must be submitted a certified laboratory for analysis of ammonia and fecal indicator bacteria in a timely manner.
3 The WDR does not define the word “impact” in this context. It is recommended photos and notes be taken of any anomalous water quality conditions that may be used to support after-the-fact impact assessments.
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Reporting
Electronic reporting to the California Integrated Water Quality System (CIWQS)4 is required for all spills. For spills greater than 50,000 gallons is discharged to receiving waters, a Spill Technical Report is required within 45 days of the spill end date. The Spill Technical Report must contain the following:
• Spill causes and circumstances
• Discharger’s response to spill
• Water quality monitoring information
• Evaluation of spill impacts, including short- and long-term impact(s) to beneficial uses of surface waters Spill report information is then used by Regional Water Quality Control Board staff to evaluate the relative impact to the environment and to form the basis of potential spill-specific enforcement actions.
2.2 Geographic Setting
The City’s approximately 25 square mile sewer sphere of influence (SOI) includes 12.1 square miles of the City and
12.9 square miles of surround unincorporated Imperial County5. Major water bodies within the vicinity of the City include IID agricultural irrigation water canals and runoff drains that collect runoff from the City and adjacent farmland (Figure 1). IID Irrigation canals are built with berms on either side that redirect surface runoff away from the canals and are thus not considered potential spill monitoring locations in this plan.
The City drains to the northeast and ranges in elevation from approximately -60 to -170 feet below mean sea level.
The major IID drains within the City include Lotus Drain, Dahlia Drain, Date Drain, Date Drain No. 3, Central Drain, Central Drain No. 5, Central Drain No. 3, and Heber Drain. Generally these drains flow south to north and collect in Central Drain which flows west to east along the northern edge of the City. Runoff from the City, including potential surface sewer spills, enters these drains through the stormwater outfalls and direct overland flow for adjacent areas.
4 https://ciwqs.waterboards.ca.gov/
5 Sewer Sphere of Influence as defined by the Imperial County Local Agency Formation Commission (LAFCO). GIS data obtained from Imperial County web GIS services.
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2.3 El Centro Assets
The City operates and maintains a sanitary collection system that provides service to approximately 44,000 residents6. The City operates and maintains a conventional primary/secondary wastewater treatment plant (WWTP), gravity pipelines, manholes, 13 lift stations, and a collection of associated force mains extending from the lift stations7. A summary of the City’s pump stations and force mains are presented below in Figure 2. In general, these assets constitute infrastructure that have potential to contribute to spills that may require a monitoring program and were used in the sample location assessment presented in Section 3.
2.4 Potential Monitoring Locations
Within the context of the City’s geography and sewer system assets, a suite of potential spill monitoring locations were identified for this Monitoring Plan. The monitoring locations were selected to provide core representation of locations where critical sewer infrastructure has potential for a large spill event, adjacent stormwater conveyance and other infrastructure has potential to be impacted by a large spill event, and during/post-event monitoring at the selected locations may provide reasonable capacity to characterize impacts to water quality from a spill. A spill that impacts water quality is likely to be conveyed through the MS4 before reaching the receiving water, however, in limited situations a spill immediately adjacent to a receiving water may discharge directly to the water body. The WDR defines four distinct monitoring location types (Figure 3):
• Flow in MS4 or non-sewer infrastructure conveyance(s) prior to the discharge point • Receiving Surface Water (RSW) discharge point
• RSW upstream of the discharge point
• RSW downstream of the discharge point
A spill event will determine the exact monitoring location(s). However, the core monitoring locations and methods documented in this Monitoring Plan allow for rapid identification and implementation of a monitoring program that will both meet the requirements of the WDR and provide critical information that may be used to inform the required Spill Technical Report impact analysis. Accordingly, this Monitoring Plan only identifies potential upstream and downstream monitoring locations.
For the City, RSW monitoring locations upstream and downstream of a discharge point can be predefined due to the regular nature of the IID drains within the City. Additional information detailing how the upstream and downstream monitoring locations were selected for this Monitoring Plan is presented in Section 3.
2.5 Water Quality Sample Constituents
Attachment E of the WDRs list two required constituents to sample for in surface water impacted by a sewer spill.
All samples are required to measure the concentration of ammonia and the concentration of the appropriate bacterial indicator(s) per the applicable Basin Plan water quality objectives. For El Centro, the Colorado River Basin 6 U.S. Census Bureau. July 1, 2022. 7 City of El Centro Sewer Master Plan. March 2008.
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Plan8 identifies E-coli and Enterococcus as the indicator bacteria for the region. Table 1 identifies the required constituents to sample for and information on the specific requirements for each sample method. 8 Water Quality Control Plan for the Colorado River Basin Region. As amended 2023. https://www.waterboards.ca.gov/coloradoriver/water_issues/programs/basin_planning/docs/2023/rb7-basin-plane032023.pdf
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Figure 3. Sewer Spill Water Quality Monitoring Locations
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Table 1. Water Quality Sample Collection, Preservation, and Analysis Constituent Analytical Method Minimum Sample
Volume
Sample Container Preservation Method Maximum Holding Time Ammonia EPA 350.1 250 mL Plastic Sulfuric Acid, 4°Celcius 28 days E. Coli SM-9223-B 100 mL Plastic Sodium thiosulfate,
4°Celcius 6 hours
Enterococcus Enterolert 100 mL Plastic Sodium thiosulfate, 4°Celcius 6 hours
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3 Monitoring Site Selection
A visual analysis was conducted by using City assets, jurisdictional and catchment area boundaries, storm drains, and City sample locations in geographic information system (GIS). Based on this analysis, a suite of potential sample locations were selected based on the following characteristics:
• Proximity to City assets
• Drainage catchment area
• Potential to serve as a reference location
Monitoring sites were chosen for their ability to characterize upstream and downstream water quality conditions.
Due to the transient nature of a spill, MS4 flow monitoring locations and discharge point monitoring locations are spill specific and cannot be identified in this plan. Downstream monitoring locations are defined in the WDR as being “a point in the receiving water, downstream of the point of sewage discharge, where the spill is fully mixed with the receiving water.” All surface runoff and sewer spills within the City comingle in the IID drains and meet at the confluence of Central Drain and Central Drain No. 3 northeast of the City. Based on this configuration, a single downstream monitoring location is suitable to characterize the fully mixed condition of the receiving water after a spill from anywhere within the City.
The WDR defines an upstream monitoring site as being “a point in the receiving water, upstream of the point of sewer discharge, to capture ambient conditions absent of sewage discharge impacts.” For the Monitoring Plan, upstream monitoring locations were selected for each of the major IID drains upstream of City sewer assets and storm drain outfalls. Upstream monitoring locations were also selected based on proximity to major roads and ease of access to the receiving water. Upstream monitoring locations presented in this Monitoring Plan are intended to be used for any spill that occurs downstream in the specified IID drain.
A suite of core monitoring locations derived from this assessment are presented below in Figure 39. More detailed site-specific fact sheets for these locations is presented in Section 6. In the event of a spill, it is recommended that City staff evaluate the spill location with respect to the sample locations presented in Figure 3 to determine an appropriate upstream monitoring location. Selection of a MS4 flow monitoring locations and discharge point monitoring location should be identified by visually inspecting the spill pattern on the ground surface and identifying if any material flowed into the MS4 and/or directly discharged into an IID drain. Monitoring is only required when a sewer spill 50,000 gallons or greater enters the receiving water. If a spill does enter a receiving water, the following sample collection protocols define the process for compliance with the receiving water quality sampling and analysis of the WDRs.
9 In preparation of this report, a Google Earth .kmz file with the monitoring locations and other pertinent information was developed for City staff use in the event of a spill.
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4 Sample Collection Overview
In general, the core sample locations are located in IID drains and require specific sampling methodology derived from industry standard water sampling procedures. Standard methods include collection of observations of site conditions and sample characteristics, flow estimations, and other observations and activities that may be used to evaluate water quality or sample collection specifics.
Water quality sampling requires the coordination of both field personnel and laboratory analysis during sampling events, but also the proper management of field and laboratory analytical data. Sampling event preparation includes allocating sample collection equipment, bottles, labels, and chain of custodies. Activities to be performed during a sampling event include the proper collection and handling of water quality samples and the submission of samples within laboratory holding times. In addition to the field effort involved with sample collection, such as travel, parking, sample collection and handling, additional effort is required after a sampling event to ensure the proper management of field and analytical data.
Sample locations should be assessed for representative sampling conditions prior to collecting a sample. For example, collection of a sample should target flowing water in riverine locations and avoid stagnant pools. If a sample location does not offer such conditions, a sample may be collected, but field notes shall include observations such as pooled water, presence of algae (and volume estimates), and other biological conditions. It is recommended that City staff review available sample collection and handling resources [e.g., Caltrans Monitoring Guidance Manual10 (Caltrans 2020), NPDES Stormwater Sampling Guidance Document11 (EPA 1992)] prior to a sampling event, and/or consult a water quality professional, as necessary. A brief synopsis of the key sampling and flow measurement protocol are provided below in Section 4.1 and 4.2.
4.1 Manual Sample Collection
Manual sample collection involves filling a container from a runoff stream or receiving waterbody. This can be done either by collecting the sample directly into laboratory-supplied bottles or by using an intermediate container to pour the sample into the lab bottles. Note that samples for certain constituents, including oil and grease, bacteria, and low-level mercury, must be collected directly into the appropriate sample bottle without use of an intermediate container.
An intermediate sample container can be an unused laboratory bottle, and sample collection can be assisted by a device that is extended to dip, lower, or reach the sample container into the waterbody. This method is ordinarily used when the waterbody is difficult to access and an intermediate container must be lowered into the water or reached across some distance to collect a sample. Use of an intermediate 10 https://dot.ca.gov/-/media/dot-media/programs/environmental-analysis/documents/env/ctws-ot-20-350-04-01-monitoringguidance-manual-a11y.pdf 11 https://www3.epa.gov/npdes/pubs/owm0093.pdf Manual sample collection methods
using an intermediate container
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container is preferred when filling pre-preserved laboratory bottles because it eliminates the risk of accidentally rinsing out the preservative while filling the bottles.
4.2 Flow Rate Estimation via Float Velocity Method
To use this method, first it is necessary to determine the cross-sectional area of the flow at a specific location. This requires estimation of flow depth and width. Then field technicians mark two places on the bank of the channel at least five feet apart (using a longer distance between the two points will result in a more accurate flow measurement).
When this setup is complete, the flow can be measured by releasing a buoyant object into the channel upstream of the two marked points on the bank and measuring the time it takes to flow between them. The rate of flow can be calculated by the following formula:
Equation 1:
𝐹𝑙𝑜𝑤 𝑅𝑎𝑡𝑒 (𝑓𝑡3
𝑠𝑒𝑐 ⁄ ) = 𝐷𝑖𝑠𝑡𝑎𝑛𝑐𝑒 𝐵𝑒𝑡𝑤𝑒𝑒𝑛 𝑃𝑜𝑖𝑛𝑡𝑠 (𝑓𝑡)
𝑇𝑟𝑎𝑣𝑒𝑟𝑠𝑒 𝑇𝑖𝑚𝑒 (𝑠𝑒𝑐) × 𝐶𝑟𝑜𝑠𝑠 𝑆𝑒𝑐𝑡𝑖𝑜𝑛𝑎𝑙 𝐴𝑟𝑒𝑎 (𝑓𝑡2)
There are some disadvantages to the float method: (1) measuring the cross sectional area of a large water body can be difficult, and inaccuracies in this value will affect the accuracy of the flow measurement, and (2) the method measures velocity of flow only at the surface of a channel, which may not be representative of the velocity throughout the entire cross section of flow. Therefore, when using this method, multiple measurements should be taken at different points across the channel and the results averaged.
The accuracy of the float method is improved by using an object that has a density similar to water and that tends to float totally submerged. For example, oranges are good floating objects for this method because they are easy to see, remain buoyant, and are environmentally safe.
4.3 Monitoring Equipment
The use of proper monitoring equipment is necessary to ensure the safety of personnel collecting the samples and integrity of the samples themselves. Contact with raw sewage can have acute and long term impacts to human health that can be avoided using the proper personal protective equipment (PPE). Additionally, contamination of the sample may occur if inappropriate equipment or handling methods are used.
Recommended PPE for receiving water monitoring includes:
• Disposable latex gloves
• Close-toed shows, long pants, and long sleeve shirt
• Optional Tyvek suit or similar
• Eye protection (glasses or goggles) and/or face shield • Disinfecting wipes and hand sanitizer
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To be ready for a spill, it is recommended the following list of equipment is procured and stored in a centralized location. Store enough sampling bottles to be able to collect up to four days of samples at the four monitoring location types described in Section 2.4 on a single drainage channel. In the event that any of the bottles are lost or compromised, it is recommended to also have a full set of backup bottles. • Full set of sample bottles and backup
o 16 100 mL plastic bottles with Sulfuric Acid preservative o Eight (8) 250 mL plastic bottles with Sulfuric Acid preservative • Sample bottle labels and water resistant marker
• Chain of custody sheets (Appendix B)
• Visual observation log (Appendix C)
• Cooler for ice to keep samples at or below 4°C
• Grab pole to safely reach into drains
For additional resources, Caltrans12 and/or EPA13 guidance documents can serve as a general guide for collecting water quality samples. While these documents focus on stormwater sampling, the safety protocols and handling methods apply to the receiving water monitoring discussed in this plan.
4.4 Water Quality Laboratory
Monitoring samples must be taken to an Environmental Laboratory Accreditation Program (ELAP) certified laboratory for analysis. The City’s WWTP is classified as a non-public certified laboratory. There are two additional ELAP certified laboratories in El Centro:
• Imperial County Public Health Laboratory (non-public). Located at 935 Broadway. • Babcock Laboratories, Inc (public). Located at 1550 Pepper Drive.
In the event that the local laboratories are unavailable during a spill event, consult the State Water Resources Control Board ELAP webpage14 for a mapping tool that shows the closest laboratories and their contact information. 5 Site Access and Safety Considerations
Access to sample locations must be assessed for safety considerations during each visit. Field staff should use caution at all times in evaluating roadway safety and right of way conditions when accessing sample locations. 12 Caltrans Stormwater Monitoring Guidance Manual. 2020. https://dot.ca.gov/-/media/dot-media/programs/environmentalanalysis/documents/env/ctws-ot-20-350-04-01-monitoring-guidance-manual-a11y.pdf 13 NPDES Storm Water Sample Guidance Document. 1992. https://www3.epa.gov/npdes/pubs/owm0093.pdf 14 https://www.waterboards.ca.gov/drinking_water/certlic/labs/
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Specific safety concerns relating to surface water sampling includes potential slip, trip, and fall hazards, biological hazards, and swift water. To reduce safety risks, grab poles should be considered for sample collection.
Site-specific access and safety considerations are presented in Section 6.1 through 6.11. 6 Site Descriptions
Site-specific location, access, and sample collection descriptions are presented on the following site information sheets. For the purposes of this document, the core sample locations are identified using the name of the IID drain and a designation of the monitoring location as upstream (US) or downstream (DS).
As described in Section 3, spill monitoring locations are identified based on location and size of the spill, specific weather and hydrology conditions, and specific management considerations. A geographic reference for each sample location is provided in Figure 3, and is described further in the following Sections 6.1 through 6.11.
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6.1 CENTRAL_DS
Monitoring Location ID CENTRAL_DS
Receiving Water Name Central Drain
Monitoring Location Type Receiving Surface Water (RSW) Downstream Address/Intersection Cooley Rd S/O E. Aten Rd
Latitude/Longitude 32.818157N, -115.522235W
Location descriptions from WWTP 4.7 miles east via Aten Rd Site Description:
The CENTRAL_DS site is located in the IID Central Drain 0.2 miles west of Cooley Rd. The site is located downstream of the confluence with Central Drain No. 3 as well as all other stormwater conveyances that drain the City. CENTRAL_DS is the used as the RSW downstream sampling location for all upstream sewer spill monitoring locations included in the Monitoring Plan.
Access Notes:
Access to the site is from an unpaved maintenance road that parallels Central Drain. The unpaved maintenance road intersects with Cooley Rd approximately 0.5 miles south of E. Aten Rd. Driving on the unpaved road should be avoided if conditions are slippery during wet weather.
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Sampling Notes:
Samples should be taken downstream (east) of the confluence with Central Drain No. 3. Samples collected at this location are used to characterize the downstream condition from any spill that occurs within the City.
Site Photos
Cooley Rd looking south at drain access road Central Drain looking west at drain access road
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6.2 CENTRAL_US
Monitoring Location ID CENTRAL_US
Receiving Water Name Central Drain
Monitoring Location Type Receiving Surface Water (RSW) Upstream Address/Intersection W/O La Brucherie Rd S/O Treshill Rd Latitude/Longitude 32.818309N, -115.579008W
Location descriptions from WWTP Northeast corner of WWTP property Site Description:
The CENTRAL_US site is located in the IID Central Drain at the northeast corner of the WWTP. The site is used to characterize the upstream condition of Central Drain before comingling with storm drain outfalls and the Dahlia Drain.
Access Notes:
Access to the site is from the unpaved shoulder of La Brucherie Rd. There is a lower and upper access road on either side of the drain. Park vehicles outside the IID gates and proceed on foot upstream 15-20 feet along the lower access road to avoid comingling samples with Dahlia Drain.
During wet weather, use caution accessing the site from the lower access road as the drain may fill the channel width.
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Sampling Notes:
Collect samples upstream of the confluence with Dahlia Drain. The lower access road provides easy access to the drain for sample collection by hand or using the grab pole.
Site Photos
Looking west at IID gates and lower access
roads Parking area along La Brucherie Rd
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6.3 DAHLIA_US
Monitoring Location ID DAHLIA_US
Receiving Water Name Dahlia Drain
Monitoring Location Type Receiving Surface Water (RSW) Upstream Address/Intersection W/O La Brucherie Rd 600 ft S/O Villa Ave Latitude/Longitude 32.801970N, -115.578752W
Location descriptions from WWTP Approximately 1 mile south on La Brucherie Rd Site Description:
The DAHLIA_US site is located at the origination of the above ground section of the Dahlia Drain.
The site is on the west shoulder of La Brucherie Rd and adjacent to open fields. The site is used to characterize the upstream condition in Dahlia Drain before it comingles with stormwater outfalls along La Brucherie Rd and terminates at Central Drain. Because this sample site is at a city storm drain outfall, it may serve as a Receiving Surface water (RSW) discharge point for spills within the upstream drainage basin
Access Notes:
Access to the site is from the unpaved shoulder of La Brucherie Rd. There are no gates or impediments to accessing the banks of the drain.
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Sampling Notes:
Collect samples from the drain’s banks using a grab pole. The drain banks are steep and the channel is 5-7 feet deep. As this is the origin of the Dahlia Drain and may not have much flow, observe the drain to ensure samples are collected from flowing pools.
Site Photos
View west of sample site from La Brucherie Rd Typical view of Dahlia Drain. Photo taken downstream from the sample site.
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6.4 LOTUS_US
Monitoring Location ID LOTUS_US
Receiving Water Name Lotus Drain
Monitoring Location Type Receiving Surface Water (RSW) Upstream Address/Intersection S/O Ross Rd 400 feet W/O Lotus Ave Latitude/Longitude 32.781268N, -115.586039W
Location descriptions from WWTP Approximately 2.3 miles south on La Brucherie Rd and 0.4 miles west on Ross Rd
Site Description:
The LOTUS_US site is located where the Lotus Drain enters the City. The drain is located along the shoulder of Ross Rd within a residential neighborhood. The site is used to characterize the upstream condition in Lotus Drain before it comingles with stormwater outfalls along the western edge of the City. The Lotus Drain terminates to the north into Central Canal at the northwest corner of the WWTP.
Access Notes:
Access to the site is from the unpaved shoulder along Ross Rd. Park in the wider shoulder west of the drain. Access the drain on foot past the IID gates.
9.b
Packet Pg. 345 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 25 FEBRUARY 2024
Sampling Notes:
Collect samples from the drain’s banks using a grab pole. The drain banks are steep and the channel is 5-7 feet deep
Site Photos
View looking southwest at the drain and wider
shoulder parking are west of the drain
Typical view of Lotus Drain. Photo taken across
the road from the site.
9.b
Packet Pg. 346 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 26 FEBRUARY 2024
6.5 DATE_US
Monitoring Location ID DATE_US
Receiving Water Name Date Drain
Monitoring Location Type Receiving Surface Water (RSW) Upstream Address/Intersection S/O McCabe Road between La Brucherie Rd and Clark Rd
Latitude/Longitude 32.752182N, -115.569200W
Location descriptions from WWTP Approximately 6.8 driving miles south Site Description:
The DATE_US site is located where the Date Drain enters the City. The site is also adjacent to a City sewer lift station (SLS-1012) on the south shoulder of McCabe Rd. The site is used to characterize the upstream condition in Date Drain before it comingles with stormwater outfalls within the south side of the City.
Access Notes:
Access to the site is from the unpaved shoulder of McCabe Rd. There are no gates or impediments to accessing the banks of the drain.
9.b
Packet Pg. 347 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 27 FEBRUARY 2024
Sampling Notes:
Collect samples from the drain’s banks using a grab pole. The drain banks are steep and the channel is 5-7 feet deep. Avoid collecting samples adjacent to the agricultural drain outfalls when there is flow.
Site Photos
View looking south in Date Drain. Note
agricultural drain outfalls within the drain.
View looking north on Date Drain headwall
under McCabe Rd
9.b
Packet Pg. 348 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 28 FEBRUARY 2024
6.6 DATE_NO3D_US
Monitoring Location ID DATE_NO3D_US
Receiving Water Name Date Drain No. 3D
Monitoring Location Type Receiving Surface Water (RSW) Upstream Address/Intersection W/O Highway 86 150 feet N/O Willow Bend Dr Latitude/Longitude 32.763364N, -115.552132W
Location descriptions from WWTP Approximately 5.1 driving miles southeast Site Description:
The DATE_NO3D_US site is located in the Date Drain No. 3D where it enters the City. Date Drain No. 3D confluences with Date Drain No. 3 approximately 0.5 miles to the east. The site is used to characterize the upstream condition in Date Drain No. 3D before it comingles with stormwater outfalls from the adjacent pocket of residential neighborhood.
Access Notes:
Access to the site is from the southbound lane of Highway 86. Note there is a raised median along this section of Highway 86. Park vehicles in the unpaved shoulder off the pavement. There are no gates or impediments to accessing the banks of the drain.
9.b
Packet Pg. 349 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 29 FEBRUARY 2024
Sampling Notes:
Collect samples from the drain’s banks using a grab pole. The drain banks are steep and the channel is 5-7 feet deep.
Site Photos
View looking west in Date Drain No. 3D at the
sample site
View looking northwest at Highway 86
southbound lane shoulder parking area
9.b
Packet Pg. 350 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 30 FEBRUARY 2024
6.7 DATE_NO3_US
Monitoring Location ID DATE_NO3_US
Receiving Water Name Date Drain No. 3
Monitoring Location Type Receiving Surface Water (RSW) Upstream Address/Intersection S/O McCabe Rd at Farnsworth Ln
Latitude/Longitude 32.752052N, -115.543465W
Location descriptions from WWTP Approximately 6.4 miles southeast Site Description:
The DATE_NO3_US site is located in the Date Drain No. 3 where it enters the City. Date Drain No. 3 goes into an underground conduit at the sample site and daylights approximately 0.5 miles to the north along the east side of Farnsworth Ln. The site is used to characterize the upstream condition in Date Drain No. 3 before it comingles with stormwater outfalls from the adjacent residential neighborhoods on the south side of the City.
Access Notes:
Access to the site is from the unpaved shoulder off McCabe Rd. There are no gates or impediments to accessing the banks of the drain.
9.b
Packet Pg. 351 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 31 FEBRUARY 2024
Sampling Notes:
Collect samples from the drain’s banks using a grab pole. The drain banks are steep and the channel is 5-7 feet deep.
Site Photos
View looking south a Date Drain No. 3. Note
agricultural drain outfalls within the drain.
View of headwall intake structure at sample
point.
9.b
Packet Pg. 352 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 32 FEBRUARY 2024
6.8 HEBER_US
Monitoring Location ID HEBER_US
Receiving Water Name Heber Drain
Monitoring Location Type Receiving Surface Water (RSW) Upstream Address/Intersection Southeast of the Imperial Valley Mall, 0.5 miles east of Dogwood Rd
Latitude/Longitude 32.759761N, -115.526323W
Location descriptions from WWTP Approximately 7 driving miles southeast Site Description:
The HEBER_US site is located in the Heber Drain where it enters and runs along the eastern edge of the City. The site is used to characterize the upstream condition in Heber Drain before it comingles with stormwater outfalls from the adjacent commercial properties to the west.
Access Notes:
Access to the site is from a 0.5 mile unpaved road that starts from Dogwood Rd southwest of the Imperial Valley Mall. The unpaved road is located adjacent to an electrical switch yard. The unpaved Road parallels the City boundary until it reaches the sample point at Heber Drain. Driving on the unpaved road should be avoided if conditions are slippery during wet weather.
9.b
Packet Pg. 353 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 33 FEBRUARY 2024
Sampling Notes:
Collect samples from the drain’s banks using a grab pole. The drain banks are steep and the channel is 5-7 feet deep. Avoid collecting samples from agricultural drain outfalls. Note the banks of the drain were eroding at the time of the site visit and make reaching the water surface more challenging.
Site Photos
Eroded banks of the drain at the sample point Active discharge from agricultural drain
9.b
Packet Pg. 354 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 34 FEBRUARY 2024
6.9 CENTRAL_NO3_US
Monitoring Location ID CENTRAL_NO3_US
Receiving Water Name Central Drain No. 3
Monitoring Location Type Receiving Surface Water (RSW) Upstream Address/Intersection S/O Gillett St 700 feet W/O Cooley Rd Latitude/Longitude 32.792583N, -115.520630W
Location descriptions from WWTP Approximately 5.4 driving miles west Site Description:
The CENTRAL_NO3_US site is located in Central Drain No. 3 where it briefly enters the City boundary. The site is used to characterize the upstream condition in Central Drain No. 3 before it comingles with the stormwater outfall into the drain at Evan Hewes Hwy.
Access Notes:
Access to the site is from the unpaved shoulder of Gillett St. There is an IID gate on the east side of the drain only..
9.b
Packet Pg. 355 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 35 FEBRUARY 2024
Sampling Notes:
Collect samples from the drain’s banks using a grab pole. The drain banks are steep and the channel is 5-7 feet deep. Avoid collecting samples from agricultural drain outfalls.
Site Photos
View looking east at the sample location View looking south at agricultural drain outfalls into Central Drain No. 3
9.b
Packet Pg. 356 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 36 FEBRUARY 2024
6.10 CENTRAL_NO5_US
Monitoring Location ID CENTRAL_NO5_US
Receiving Water Name Central Drain No. 5
Monitoring Location Type Receiving Surface Water (RSW) Upstream Address/Intersection 0.5 miles south of Villa Ave along a unpaved access road
Latitude/Longitude 32.797228N, -115.544208W
Location descriptions from WWTP Approximately 4.4 miles west Site Description:
The CENTRAL_NO5_US site is located in Central Drain No. 5 where it originates at a City stormwater outfall. The site is used to characterize the upstream condition in Central Drain No. 5 before it comingles with runoff from the industrial land uses adjacent to the drain and sewer force main in Villa Rd. Because this sample site is at a city storm drain outfall, it may serve as a Receiving Surface water (RSW) discharge point for spills within the upstream drainage basin.
Access Notes:
Access is from an unpaved road south of Villa Rd. The access road parallels the drain for approximately 0.5 miles. Driving on the unpaved road should be avoided if conditions are slippery during wet weather.
9.b
Packet Pg. 357 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 37 FEBRUARY 2024
Sampling Notes:
Collect samples from the drain’s banks using a grab pole. The drain banks are steep and the channel is 5-7 feet deep. Avoid collecting samples in stagnant pools and where excessive trash/debris has accumulated.
Site Photos
View looking east at City storm drain outfall
that creates Central Drain No. 5
View looking north in Central Drain No. 5
9.b
Packet Pg. 358 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 38 FEBRUARY 2024
7 Summary
This Monitoring Plan provides the City with technical guidance for sampling receiving waters in the event of a sewer spill. Sampling activities can help the City determine the impact of a spill, and help guide management decisions relating to remediation and spill response. This sample protocol, and site-specific descriptions, provides City staff with a detailed guidance document for sampling and assessing impact to waterbodies following a sewer spill.
Final selection of the sample locations for this Monitoring Plan was determined based on proximity to City assets, drainage characteristics, safety, and accessibility. This document provides multiple locations that may offer downstream and upstream sample locations to assess, not only the downstream impacts of spills, but also the upstream pollutant characteristics. Flow in MS4 and point of discharge monitoring locations will be determined in the field in event a spill reaches the receiving water. All monitoring sites are subject to change should a different site be identified as superior for properly characterizing impacts to water quality from a spill event.
9.b
Packet Pg. 359 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 39 FEBRUARY 2024
8 References
Caltrans 2020. Stormwater Monitoring Guidance Manual. https://dot.ca.gov/-/media/dotmedia/programs/environmental-analysis/documents/env/ctws-ot-20-350-04-01-monitoring-guidancemanual-a11y.pdf Environmental Protection Agency 1992. NPDES Storm Water Sampling Guidance Document. https://www3.epa.gov/npdes/pubs/owm0093.pdf
State Water Resources Control Board 2013. National Pollutant Discharge Elimination System (NPDES) General Permit for Waste Discharge Requirements (WDRs) for Storm Water Discharges from Small Municipal Separate Storm Sewer Systems (MS4s) Water Quality (WQ) Order 2013-0001-DWQ NPDES NO.
CAS000004 as amended by Order WQ 2015-0133-EXEC, Order WQ 2016-0069-EXEC, WQ Order 2017- XXXX-DWQ, Order WQ 2018-0001-EXEC, and Order WQ 2018-0007-EXEC. https://www.waterboards.ca.gov/water_issues/programs/stormwater/docs/remediated_phase2ms4per mit_v2.pdf'
State Water Resources Control Board 2022. Statewide Waste Discharge Requirements General Order for Sanitary Sewer Systems. Order WQ 2022-0103-DWQ.
https://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2022/wqo_2022- 0103-dwq.pdf
9.b
Packet Pg. 360 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02 40 FEBRUARY 2024
INTENTIONALLY LEFT BLANK
9.b
Packet Pg. 361 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02
FEBRUARY 2024
Appendix A
Waste Discharge Requirements (WQ 2003-0005-DWQ)
Attachment E.1
9.b
Packet Pg. 362 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 1
ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING AND
RECORDKEEPING REQUIREMENTS
Table of Contents
1. Notification Requirements......................................................................................... E1-3
1.1. Notification of Spills of 1,000 Gallons or Greater to the California Office of Emergency Services ...................................................................................... E1-3
1.2. Spill Notification Information........................................................................... E1-4
1.3. Notification of Spill Report Updates................................................................ E1-4
2. Spill-Specific Monitoring Requirements .................................................................... E1-5
2.1 Spill Location and Spread .............................................................................. E1-5
2.2 Spill Volume Estimation.................................................................................. E1-5
2.3. Receiving Water Monitoring ............................................................................E1-5
2.4. Safety and Access Exceptions ........................................................................E1-8
3. Reporting Requirements ............................................................................................E1-8
3.1. Reporting Requirements for Individual Category 1 Spill Reporting .................E1-8
3.2. Reporting Requirements for Individual Category 2 Spill Reporting ...............E1-12
3.3. Monthly Certified Spill Reporting for Category 3 Spills..................................E1-14
3.4. Monthly Certified Spill Reporting for Category 4 Spills..................................E1-16
3.5. Amended Certified Spill Reports for Category 3 Spills ..................................E1-16
3.6. Annual Certified Spill Reporting of Category 4 and/or Lateral Spills .............E1-16
3.7. Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” ................................................................................................E1-16
3.8. Electronic Sanitary Sewer System Service Area Boundary Map...................E1-17
3.9. Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ)..................................................................E1-17
3.10. Sewer System Management Plan Audit Reporting Requirements ................E1-19
3.11. Sewer System Management Plan Reporting Requirements .........................E1-19
4. Recordkeeping Requirements .................................................................................E1-20
4.1. Recordkeeping Time Period..........................................................................E1-20
4.2. Availability of Documents ..............................................................................E1-20
4.3. Spill Reports..................................................................................................E1-20
4.4. Recordkeeping of Category 4 Spills and Non-Category 1 Lateral Spills .......E1-21
4.5. Sewer System Telemetry Records................................................................E1-22
4.6. Sewer System Management Plan Implementation Records .........................E1-22
4.7. Audit Records................................................................................................E1-23
9.b
Packet Pg. 363 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 2
4.8. Equipment Records.......................................................................................E1-23
4.9. Work Orders..................................................................................................E1-23
9.b
Packet Pg. 364 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 3
ATTACHMENT E1– NOTIFICATION, MONITORING, REPORTING AND RECORDKEEPING
REQUIREMENTS
The Notification Requirements (section 1), Spill-specific Monitoring Requirements (section 2), Reporting Requirements (section 3) and Recordkeeping Requirements (section 4) in this Attachment are pursuant to Water Code section 13267 and section 13383, and are an enforceable component of this General Order. For the purpose of this General Order, the term:
• Notification means the notifying of appropriate parties of a spill event or other activity. • Spill-specific Monitoring means the gathering of information and data for a specific spill event to be reported or kept as records.
• Reporting means the reporting of information and data into the online California Integrated Water Quality System (CIWQS) Sanitary Sewer System Database. • Recordkeeping means the maintaining of information and data in an official records storage system.
Failure to comply with the notification, monitoring, reporting and recordkeeping requirements in this General Order may subject the Enrollee to civil liabilities of up to $10,000 a day per violation pursuant to Water Code section 13385; up to $1,000 a day per violation pursuant to Water Code section 13268; or referral to the Attorney General for judicial civil enforcement.
Water Code section 13193 et seq. requires the Regional Water Quality Control Boards (Regional Water Boards) and the State Water Resources Control Board (State Water Board) to collect sanitary sewer spill information for each spill event and make this information available to the public. Sanitary sewer spill information for each spill event includes but is not limited to: Enrollee contact information for each spill event, spill cause, estimated spill volume and factors used for estimation, location, date, time, duration, amount discharged to waters of the State, response and corrective action(s) taken.
1. NOTIFICATION REQUIREMENTS
1.1. Notification of Spills of 1,000 Gallons or Greater to the California Office of Emergency Services
Per Water Code section 13271, for a spill that discharges in or on any waters of the State, or discharges or is deposited where it is, or probably will be, discharged in or on any waters of the State, the Enrollee shall notify the California Office of Emergency Services and obtain a California Office of Emergency Services Control Number as soon as possible but no later than two (2) hours after:
• The Enrollee has knowledge of the spill; and
• Notification can be provided without substantially impeding cleanup or other emergency measures.
The notification requirements in this section apply to individual spills of 1,000 gallons or greater, from an Enrollee-owned and/or operated laterals, to a water of the State.
9.b
Packet Pg. 365 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 4
1.2. Spill Notification Information
The Enrollee shall provide the following spill information to the California Office of Emergency Services before receiving a Control Number, as applicable:
• Name and phone number of the person notifying the California Office of Emergency Services;
• Estimated spill volume (gallons);
• Estimated spill rate from the system (gallons per minute); • Estimated discharge rate (gallons per minute) directly into waters of the State or indirectly into a drainage conveyance system;
• Spill incident description:
o Brief narrative of the spill event, and
o Spill incident location (address, city, and zip code) and closest cross streets and/or landmarks;
• Name and phone number of contact person on-scene;
• Date and time the Enrollee was informed of the spill event; • Name of sanitary sewer system causing the spill;
• Spill cause or suspected cause (if known);
• Amount of spill contained;
• Name of receiving water body receiving or potentially receiving discharge; and • Description of water body impact and/ or potential impact to beneficial uses.
1.3. Notification of Spill Report Updates
Following the initial notification to the California Office of Emergency Services and until such time that the Enrollee certifies the spill report in the online CIWQS Sanitary Sewer System Database, the Enrollee shall provide updates to the California Office of Emergency Services regarding substantial changes to:
• Estimated spill volume (increase or decrease in gallons initially estimated); • Estimated discharge volume discharged directly into waters of the State or indirectly into a drainage conveyance system (increase or decrease in gallons initially estimated); and
• Additional impact(s) to the receiving water(s) and beneficial uses.
9.b
Packet Pg. 366 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 5
2. SPILL-SPECIFIC MONITORING REQUIREMENTS
2.1 Spill Location and Spread
The Enrollee shall visually assess the spill location(s) and spread using photography, global positioning system (GPS), and other best available tools. The Enrollee shall document the critical spill locations, including:
• Photography and GPS coordinates for:
o The system location where spill originated.
For multiple appearance points of a single spill event, the points closest to the spill origin.
• Photography for:
o Drainage conveyance system entry locations,
o The location(s) of discharge into surface waters, as applicable, o Extent of spill spread, and
o The location(s) of clean up.
2.2 Spill Volume Estimation
To assess the approximate spill magnitude and spread, the Enrollee shall estimate the total spill volume using updated volume estimation techniques, calculations, and documentation for electronic reporting. The Enrollee shall update its notification and reporting of estimated spill volume (which includes spill volume recovered) as further information is gathered during and after a spill event.
2.3. Receiving Water Monitoring
2.3.1. Receiving Water Visual Observations
Through visual observations and use of best available spill volume-estimating techniques and field calculation techniques, the Enrollee shall gather and document the following information for spills discharging to surface waters:
• Estimated spill travel time to the receiving water;
• For spills entering a drainage conveyance system, estimated spill travel time from the point of entry into the drainage conveyance system to the point of discharge into the receiving water;
• Estimated spill volume entering the receiving water; and • Photography of:
o Waterbody bank erosion,
o Floating matter,
o Water surface sheen (potentially from oil and grease),
9.b
Packet Pg. 367 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 6
o Discoloration of receiving water, and
o Impact to the receiving water.
2.3.2. Receiving Water – Water Quality Sampling and Analysis For sewage spills in which an estimated 50,000 gallons or greater are discharged into a surface water, the Enrollee shall conduct the following water quality sampling no later than 18 hours after the Enrollee’s knowledge of a potential discharge to a surface water:
• Collect one water sample, each day of the duration of the spill, at:
o The DCS-001 location as described in section 2.3.4 (Receiving Water Sampling Locations) of this Attachment, if sewage discharges to a surface water via a drainage conveyance system; and/or
o Each of the three receiving water sampling locations in section 2.3.4 (Receiving Water Sampling Locations) of this Attachment;
If the receiving water has no flow during the duration of the spill, the Enrollee must report “No Sampling Due To No Flow” for its receiving water sampling locations.
The Enrollee shall analyze the collected receiving water samples for the following constituents per section 2.3.3 (Water Quality Analysis Specifications) of this Attachment:
• Ammonia, and
• Appropriate bacterial indicator(s) per the applicable Basin Plan water quality objectives, including one or more of the following, unless directed otherwise by the Regional Water Board:
o Total Coliform Bacteria
o Fecal Coliform Bacteria
o E-coli
o Enterococcus
Dependent on the receiving water(s), sampling of bacterial indicators shall be sufficient to determine post-spill (after the spill) compliance with the water quality objectives and bacterial standards of the California Ocean Plan or the California Inland Surface Water Enclosed Bays, and Estuaries Plan, including the frequency and/or number of post-spill receiving water samples as may be specified in the applicable plans.
The Enrollee shall collect and analyze additional samples as required by the applicable Regional Water Board Executive Officer or designee.
9.b
Packet Pg. 368 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 7
2.3.3. Water Quality Analysis Specifications
Spill monitoring must be representative of the monitored activity (40 Code of Federal Regulations section 122.41(j)(1)).
Sufficiently Sensitive Methods
Sample analysis must be conducted according to sufficiently sensitive test methods approved under 40 Code of Federal Regulations Part 136 for the sample analysis of pollutants. For the purposes of this General Order, a method is sufficiently sensitive when the minimum level of the analytical method approved under 40 Code of Federal Regulations Part 136 is at or below the receiving water pollutant criteria.
Environmental Laboratory Accreditation Program-Accredited Laboratories The analysis of water quality samples required per this General Order must be performed by a laboratory that has accreditation pursuant to Article 3 (commencing with section 100825) of Chapter 4 of Part 1 of Division 101 of the Health and Safety Code. (Water Code section 13176(a).) The State Water Board accredits laboratories through its Environmental Laboratory Accreditation Program (ELAP).
2.3.4. Receiving Water Sampling Locations
The Enrollee shall collect receiving water samples at the following locations.
Sampling of Flow in Drainage Conveyance System (DCS) Prior to Discharge Sampling
Location Sampling Location Description
DCS-001 A point in a drainage conveyance system before the drainage conveyance system flow discharges into a receiving water.
Receiving Surface Water Sampling (RSW)1
Sampling
Location Sampling Location Description
RSW-001
Point of Discharge
A point in the receiving water where sewage initially enters the receiving water.
RSW-001U:
Upstream of Point
of Discharge
A point in the receiving water, upstream of the point of sewage discharge, to capture ambient conditions absent of sewage discharge impacts.
9.b
Packet Pg. 369 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
E1 - 8
Sampling
Location Sampling Location Description
RSW-001D:
Downstream of
Point of Discharge
A point in the receiving water, downstream of the point of sewage discharge, where the spill material is fully mixed with the receiving water.
1 The Enrollee must use its best professional judgment to determine the upstream and downstream distances based on receiving water flow, accessibility to upstream/downstream waterbody banks, and size of visible sewage plume.
2.4. Safety and Access Exceptions
If the Enrollee encounters access restrictions or unsafe conditions that prevents its compliance with spill response requirements or monitoring requirements in this General Order, the Enrollee shall provide documentation of access restrictions and/or safety hazards in the corresponding required report.
3. REPORTING REQUIREMENTS
All reporting required in this General Order must be submitted electronically to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov), unless specified otherwise in this General Order. Electronic reporting may solely be conducted by a Legally Responsible Official or Data Submitter(s) previously designated by the Legally Responsible Official, as required in section 5.8 (Designation of Data Submitters) of this General Order.
The Enrollee shall report any information that is protected by the Homeland Security Act, by email to [email protected], with a brief explanation of the protection provided by the Homeland Security Act for the subject report to be protected from unauthorized disclosure and/or public access, and for official Water Board regulatory purposes only.
3.1. Reporting Requirements for Individual Category 1 Spill Reporting
3.1.1. Draft Spill Report for Category 1 Spills
Within three (3) business days of the Enrollee’s knowledge of a Category 1 spill, the Enrollee shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.
The Draft Spill Report must, at minimum, include the following items:
1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;
2. Spill location name;
3. Date and time the Enrollee was notified of, or self-discovered, the spill;
4. Operator arrival time;
9.b
Packet Pg. 370 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
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5. Estimated spill start date and time;
6. Date and time the Enrollee notified the California Office of Emergency Services, and the assigned control number;
7. Description, photographs, and GPS coordinates of the system location where the spill originated;
o If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;
8. Estimated total spill volume exiting the system;
9. Description and photographs of the extent of the spill and spill boundaries;
10. Did the spill reach a drainage conveyance system? If Yes:
o Description of the drainage conveyance system transporting the spill; o Photographs of the drainage conveyance system entry location(s); o Estimated spill volume fully recovered from the drainage conveyance system; o Estimated spill volume remaining within the drainage conveyance system;
11. Description and photographs of all discharge point(s) into the surface water;
12. Estimated spill volume that discharged to surface waters; and
13. Estimated total spill volume recovered.
3.1.2. Certified Spill Report for Category 1 Spills
Within 15 calendar days of the spill end date, the Enrollee shall submit a Certified Spill Report for Category 1 spills, to the online CIWQS Sanitary Sewer System Database.
Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.
The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.1.1 (Draft Spill Report for Category 1 Spills) above:
1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;
2. Spill end date and time;
3. Description of how the spill volume estimations were calculated, including at a minimum:
o The methodology, assumptions and type of data relied upon, such as supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and o The methodology(ies), assumptions and type of data relied upon for estimations of the spill start time and the spill end time;
9.b
Packet Pg. 371 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
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4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);
5. System failure location (for example, main, lateral, pump station, etc.);
6. Description of the pipe material, and estimated age of the pipe material, at the failure location;
7. Description of the impact of the spill;
8. Whether or not the spill was associated with a storm event;
9. Description of spill response activities including description of immediate spill containment and cleanup efforts;
10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;
11. Spill response completion date;
12. Detailed narrative of investigation and investigation findings of cause of spill;
13. Reasons for an ongoing investigation (as applicable) and the expected date of completion;
14. Name and type of receiving water body(s);
15.Description of the water body(s), including but not limited to:
o Observed impacts on aquatic life,
o Public closure, restricted public access, temporary restricted use, and/or posted health warnings due to spill,
o Responsible entity for closing/restricting use of water body, and o Number of days closed/restricted as a result of the spill.
16.Whether or not the spill was located within 1,000 feet of a municipal surface water intake; and
17. If water quality samples were collected, identify sample locations and the parameters the water quality samples were analyzed for. If no samples were taken, Not Applicable shall be selected.
3.1.3. Spill Technical Report for Individual Category 1 Spill in which 50,000 Gallons or Greater Discharged into a Surface Water
For any spill in which 50,000 gallons or greater discharged into a surface water, within 45 calendar days of the spill end date, the Enrollee shall submit a Spill Technical Report to the online CIWQS Sanitary Sewer System Database. The Spill Technical Report, at minimum, must include the following information:
1. Spill causes and circumstances, including at minimum:
o Complete and detailed explanation of how and when the spill was discovered;
9.b
Packet Pg. 372 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
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o Photographs illustrating the spill origin, the extent and reach of the spill, drainage conveyance system entrance and exit, receiving water, and post-cleanup site conditions;
o Diagram showing the spill failure point, appearance point(s), the spill flow path, and ultimate destinations;
o Detailed description of the methodology employed, and available data used to calculate the discharge volume and, if applicable, the recovered spill volume; o Detailed description of the spill cause(s);
o Description of the pipe material, and estimated age of the pipe material, at the failure location;
o Description of the impact of the spill;
o Copy of original field crew records used to document the spill; and o Historical maintenance records for the failure location.
2. Enrollee’s response to the spill:
o Chronological narrative description of all actions taken by the Enrollee to terminate the spill;
o Explanation of how the Sewer System Management Plan Spill Emergency Response Plan was implemented to respond to and mitigate the spill; and o Final corrective action(s) completed and a schedule for planned corrective actions, including:
▪ Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable,
▪ Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences, and ▪ Necessary modifications to the Emergency Spill Response Plan to incorporate lessons learned in responding to and mitigating the spill.
3. Water Quality Monitoring, including at minimum:
o Description of all water quality sampling activities conducted; o List of pollutant and parameters monitored, sampled and analyzed; as required in section 2.3 (Receiving Water Monitoring) of this Attachment; o Laboratory results, including laboratory reports;
o Detailed location map illustrating all water quality sampling points; and o Other regulatory agencies receiving sample results (if applicable).
4. Evaluation of spill impact(s), including a description of short-term and long-term impact(s) to beneficial uses of the surface water.
9.b
Packet Pg. 373 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
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3.1.4. Amended Certified Spill Reports for Individual Category 1 Spills The Enrollee shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database.
The Enrollee shall certify the amended report.
After 90 calendar days, the Enrollee shall contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the Amended Spill Report due date.
3.2. Reporting Requirements for Individual Category 2 Spill Reporting
3.2.1. Draft Spill Report for Category 2 Spills
Within three (3) business days of the Enrollee’s knowledge of a Category 2 spill, the Enrollee shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.
The Draft Spill Report must, at minimum, include the following items:
1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;
2. Spill location name;
3. Date and time the Enrollee was notified of, or self-discovered, the spill;
4. Operator arrival time;
5. Estimated spill start date and time;
6. Date and time the Enrollee notified the California Office of Emergency Services, and the assigned control number;
7. Description, photographs, and GPS coordinates of the system location where the spill originated;
If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;
8. Estimated total spill volume exiting the system;
9. Description and photographs of the extent of the spill and spill boundaries;
10. Did the spill reach a drainage conveyance system? If Yes:
o Description of the drainage conveyance system transporting the spill; o Photographs of the drainage conveyance system entry location(s); o Estimated spill volume fully recovered from the drainage conveyance system; o Estimated spill volume remaining within the drainage conveyance system;
9.b
Packet Pg. 374 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
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o Estimated spill volume discharged to a groundwater infiltration basin or facility, if applicable; and
11. Estimated total spill volume recovered.
3.2.2. Certified Spill Report for Category 2 Spills
Within 15 calendar days of the spill end date, the Enrollee shall submit a Certified Spill Report for the Category 2 spill, to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov). Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.
The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.2.1 (Draft Spill Report for Category 2 Spills) above:
1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;
2. Spill end date and time;
3. Description of how the spill volume estimations were calculated, including at a minimum:
o The methodology, assumptions and type of data relied upon, such as supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and o The methodology(ies), assumptions and type of data relied upon for estimations of the spill start time and the spill end time;
4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);
5. System failure location (for example, main, pump station, etc.);
6. Description of the pipe/infrastructure material, and estimated age of the pipe material, at the failure location;
7. Description of the impact of the spill;
8. Whether or not the spill was associated with a storm event;
9. Description of spill response activities including description of immediate spill containment and cleanup efforts;
10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;
11. Spill response completion date;
12. Detailed narrative of investigation and investigation findings of cause of spill;
13. Reasons for an ongoing investigation (as applicable) and the expected date of completion; and
9.b
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AND RECORDKEEPING REQUIREMENTS December 6, 2022
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14. Whether or not the spill was located within 1,000 feet of a municipal surface water intake.
3.2.3. Amended Certified Spill Reports for Individual Category 2 Spills The Enrollee shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database.
The Enrollee shall certify the amended report.
After 90 calendar days, the Enrollee shall contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the Amended Spill Report due date.
3.3. Monthly Certified Spill Reporting for Category 3 Spills The Enrollee shall report and certify all Category 3 spills to the online CIWQS Sanitary Sewer System Database within 30 calendar days after the end of the month in which the spills occurred. (For example, all Category 3 spills occurring in the month of February shall be reported and certified by March 30th). After the Legally Responsible Official certifies the spills, the online CIWQS Sanitary Sewer System Database will issue a spill event identification number for each spill.
The monthly reporting of all Category 3 spills must include the following items for each spill:
1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;
2. Spill location name;
3. Date and time the Enrollee was notified of, or self-discovered, the spill;
4. Operator arrival time;
5. Estimated spill start date and time;
6. Description, photographs, and GPS coordinates where the spill originated:
o If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;
7. Estimated total spill volume exiting the system;
8. Description and photographs of the extent of the spill and spill boundaries;
9. Did the spill reach a drainage conveyance system? If Yes:
o Description of the drainage conveyance system transporting the spill; o Photographs of the drainage conveyance system entry locations(s); o Estimated spill volume fully recovered from the drainage conveyance system; and
9.b
Packet Pg. 376 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
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o Estimated spill volume discharged to a groundwater infiltration basis or facility, if applicable.
10. Estimated total spill volume recovered;
11. Description of the spill event destination(s), including GPS coordinates, if available, that represent the full spread and reaches of the spill;
12. Spill end date and time;
13. Description of how the spill volume estimations were calculated, including, at minimum:
o The methodology and type of data relied upon, including supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and o The methodology and type of data relied upon to estimate the spill start time, on-going spill rate at time of arrival (if applicable), and the spill end time;
14. Spill cause(s) (for example, root intrusion, grease deposition, etc.);
15. System failure location (for example, main, pump station, etc.);
16. Description of the pipe/infrastructure material, and estimated age of the pipe/infrastructure material, at the failure location;
17. Description of the impact of the spill;
18. Whether or not the spill was associated with a storm event;
19. Description of spill response activities including description of immediate spill containment and cleanup efforts;
20. Description of spill corrective actions, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of the major milestones for those steps; including, at minimum:
o Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable, and
o Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences at the same spill event location, including:
▪ Adjusted schedule/method of preventive maintenance,
▪ Planned rehabilitation or replacement of sanitary sewer asset, ▪ Inspected, repaired asset(s), or replaced defective asset(s), ▪ Capital improvements,
▪ Documentation verifying immediately implemented system modifications and operating/maintenance modifications,
▪ Description of spill response activities,
9.b
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AND RECORDKEEPING REQUIREMENTS December 6, 2022
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▪ Spill response completion date, and
▪ Ongoing investigation efforts, and expected completion date of investigation to determine the full cause of spill;
21. Detailed narrative of investigation and investigation findings of cause of spill.
3.4. Monthly Certified Spill Reporting for Category 4 Spills The Enrollee shall report and certify the estimated total spill volume exiting the sanitary sewer system, and the total number of all Category 4 spills to the online CIWQS Sanitary Sewer System Database, within 30 calendar days after the end of the month in which the spills occurred.
3.5. Amended Certified Spill Reports for Category 3 Spills Within 90 calendar days of the certified Spill Report due date, the Enrollee may update or add additional information to a certified Spill Report by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database. The Enrollee shall certify the amended report.
After 90 calendar days, the Legally Responsible Official shall contact the State Water Board at [email protected] to request to amend a certified Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the 90-day timeframe for amending the certified Spill Report, as provided above.
3.6. Annual Certified Spill Reporting of Category 4 and/or Lateral Spills For all Category 4 spills and spills from its owned and/or operated laterals that are caused by a failure or blockage in the lateral and that do not discharge to a surface water, the Enrollee shall:
• Maintain records per section 4.4. of this Attachment; The Enrollee shall provide records upon request by State Water Board or Regional Water Board staff.
• Annually upload and certify a report, in an appropriate digital format, of all recordkeeping of spills to the online CIWQS Sanitary Sewer System Database, by February 1st after the end of the calendar year in which the spills occurred.
A spill from an Enrollee-owned and/or operated lateral that discharges to a surface water is a Category 1 spill; the Enrollee shall report all Category 1 spills per section 3.1 of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.
3.7. Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills”
If either (1) no spills occur during a calendar month or (2) only Category 4, and/or Enrollee-owned and/or operated lateral spills (that do not discharge to a surface water) occur during a calendar month, the Enrollee shall certify, within 30 calendar days after
9.b
Packet Pg. 378 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
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the end of each calendar month, either a “No-Spill” certification statement, or a “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” certification statement, in the online CIWQS Sanitary Sewer System Database, certifying that there were either no spills, or Category 4 and/or Non-Category 1 Lateral Spills that will be reported annually (per section 3.6 of this Attachment) for the designated month.
If a spill starts in one calendar month and ends in a subsequent calendar month, and the Enrollee has no further spills of any category, in the subsequent calendar month, the Enrollee shall certify “no-spills” for the subsequent calendar month.
If the Enrollee has no spills from its systems during a calendar month, but the Enrollee voluntarily reported a spill from a private lateral or a private system, the Enrollee shall certify “no-spills” for that calendar month.
If the Enrollees has spills from its owned and/or operated laterals during a calendar month, the Enrollee shall not certify “no spills” for that calendar month.
3.8. Electronic Sanitary Sewer System Service Area Boundary Map The Legally Responsible Official shall submit, to the State Water Board, an up-to-date electronic spatial map of its sewer system service area boundaries. The map must be in accordance with section 5.14 (Electronic Sanitary Sewer System Service Area Boundary Map) of this General Order and the specification provided on the statewide Sanitary Sewer Systems program website. The map must include the location of wastewater treatment facility(ies) that treats the sewer system waste, if in the same sewer service boundary.
By the Effective Date of this General Order, specifications for the electronic sanitary sewer service area boundary map format will be provided on the statewide Sanitary Sewer Systems Order program website.
3.9. Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ)
A new Enrollee shall complete and submit its first certified Annual Report into the online CIWQS Sanitary Sewer System Database, within 30 days of obtaining a CIWQS account; Subsequent Annual Reports are due by April 1 of each year.
All enrollees shall update their previous year’s Annual Report, by April 1 of each year after the Effective Date of this General Order, for each calendar year (January 1 through December 31).
The Annual Report must be entered directly into the online CIWQS Sanitary Sewer System Database. The Enrollee’s Legally Responsible Official shall certify the Annual Report as instructed in CIWQS;
The Annual Report must address, and update as applicable, the following items:
• Population served;
9.b
Packet Pg. 379 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
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• Updated sewer system service area boundary map, if service area boundary has changed from original map submitted per section 5.14 (Electronic Sanitary Sewer System Service Area Boundary Map) of this General Order; • Number of system operation and maintenance staff:
o Entry level (less than two years of experience),
o Journey level (greater than two years of experience), o Supervisory level, and
o Managerial level;
• Number of operation and maintenance staff certified as a certified collection system operator by the California Water Environmental Association (CWEA), with:
o Corresponding number of certified collection system operator grade levels (Grade I, II, III, IV, and V);
• System information:
o Miles of system gravity and force mains,
o Number of upper and lower service laterals connected to system, o Estimated number of upper and lower laterals owned and/or operated by the Enrollee,
o Portion of laterals that is Enrollee’s responsibility, o Average age the major components of system infrastructure, o Number and age of pump stations, and
o Estimated total miles of the system pipeline not accessible for maintenance; • Name and location of the treatment plant(s) receiving sanitary sewer system’s waste;
• Name of satellite sewer system tributaries;
• Number of system’s gravity sewer above or underground crossings of water bodies throughout system;
• Number of force main (pressurized pipe) above or underground crossings of water bodies throughout system;
• Number of siphons used to convey waste throughout the sewer system; • Miles of sewer system cleaned;
• Miles of sewer system video inspected, or comparable (i.e., video closed-circuit television or alternative inspection methods);
• System Performance Evaluation as specified in section 5.11 (System Performance Analysis) of this General Order;
• Major spill causes (for example, root intrusion, grease deposition);
9.b
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AND RECORDKEEPING REQUIREMENTS December 6, 2022
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• System infrastructure failure points (for example, main, pump station, lateral, etc.); • Ongoing spill investigations; and
• Actions taken to address system deficiencies.
3.10. Sewer System Management Plan Audit Reporting Requirements The Enrollee shall submit its Sewer System Management Plan Audit and other pertinent audit information, in accordance with section 5.4 (Sewer System Management Plan Audits) of this General Order, to the online CIWQS Sanitary Sewer System Database by six (6) months after the end of the 3-year audit period.
If a Sewer System Management Plan Audit is not conducted as required: the Enrollee shall:
• Update the online CIWQS Sanitary Sewer System Database and select the justification for not conducting the Audit; and
• Notify its corresponding Regional Water Board (see Attachment F (Regional Water Quality Control Board Contact Information)) of the justification for the lapsed requirements.
The Enrollee’s reporting of a justification for not conducting a timely Audit does not justify non-compliance with this General Order. The Enrollee shall:
• Submit the late Audit as required in this General Order; and • Comply with subsequent Audit requirements and due dates corresponding with the original audit cycle.
3.11. Sewer System Management Plan Reporting Requirements For an Existing Enrollee previously regulated by Order 2006-0003-DWQ: Within every six (6) years after the required due date of its last Plan Update, the Legally Responsible Official shall upload and certify a local governing entity-approved Sewer System Management Plan Update to the online CIWQS Sanitary Sewer System Database. If the electronic document format or size capacity prevents the electronic upload of the Plan, the Legally Responsible Official shall report an electronic link to its updated Sewer System Management Plan posted on its own website.
Order 2006-0003-DWQ required each enrollee to develop its initial Sewer System Management Plan per the following schedule, with required Plan updates at a frequency of 5-years thereafter:
Systems serving populations: Greater than 100,000: May 2, 2009 Between 100,000 and 10,000: August 2, 2009
Between 10,000 and 2,500: May 2, 2010
Less than 2,500: August 2, 2010
9.b
Packet Pg. 381 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
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This Order carries forth the previously-required Plan Update schedule per Order 2006-0003-DWQ. Per the six-year Plan Update frequency required in this Order, the Enrollee shall upload and certify its first Plan Update, to the online CIWQS Sanitary Sewer System Database by the following due dates, with subsequent Plan Updates at the frequency of six years thereafter:
Systems serving populations: Greater than 100,000: May 2, 2025 Between 100,000 and 10,000: August 2, 2025
Between 10,000 and 2,500: May 2, 2026
Less than 2,500: August 2, 2026
For a New Enrollee: Within twelve (12) months of its Application for Enrollment Approval date, the Legally Responsible Official of a new Enrollee shall upload and certify a local governing entity-approved Sewer System Management Plan to the online CIWQS Sanitary Sewer System Database. If electronic document format or size capacity prevents the electronic upload of the Plan, the Legally Responsible Official shall report an electronic link to its Sewer System Management Plan posted on its own website. The due date for subsequent 6-year Plan updates, is six (6) years from the submittal due date of the new Enrollee’s first Sewer System Management Plan.
4. RECORDKEEPING REQUIREMENTS
The Enrollee shall maintain records to document compliance with the provisions of this General Order, and previous General Order 2006-0003-DWQ as applicable, for each sanitary sewer system owned, including any required records generated by an Enrollee’s contractor(s).
4.1. Recordkeeping Time Period
The Enrollee shall maintain records of documents required in this Attachment, including records collected for compliance with this General Order, and records collected in accordance with previous General Order 2006-0003-DWQ, for five (5) years.
4.2. Availability of Documents
The Enrollee shall make the records required in this General Order readily available, either electronic or hard copies, for review by Water Board staff during onsite inspections or through an information request.
4.3. Spill Reports
The Enrollee shall maintain records for each of the following spill-related events and activities:
• Spill event complaint, including but not limited to records documenting how the Enrollee responded to notifications of spills. Each complaint record must, at a minimum, include the following information:
o Date, time, and method of notification,
9.b
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AND RECORDKEEPING REQUIREMENTS December 6, 2022
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o Date and time the complainant first noticed the spill, if available, o Narrative description of the complaint, including any information the caller provided regarding whether the spill has reached surface waters or a drainage conveyance system, if available,
o Complainant’s contact information, if available, and
o Final resolution of the complaint;
• Records documenting the steps and/or remedial action(s) undertaken by the Enrollee, using all available information, to comply with this General Order, and previous General Order 2006-0003-DWQ as applicable;
• Records documenting how estimate(s) of volume(s) and, if applicable, volume(s) of spill recovered were calculated;
• All California Office of Emergency Services notification records, as applicable; and • Records, in accordance with the Monitoring Requirements in this Attachment.
4.4. Recordkeeping of Category 4 Spills and Non-Category 1 Lateral Spills An Enrollee must maintain the following records for each individual Category 4 spill and for each individual non-Category 1 Enrollee-owned and/or operated lateral spill, and report in accordance to section 3.6 (Annual Certified Spill Reporting of Category 4 and/or Lateral Spills) of this Attachment.
Recordkeeping of Individual Category 4 Spill Information:
1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;
2. Spill location name;
3. Description and GPS coordinates for the system location where the spill originated;
4. Did the spill reach a drainage conveyance system? If Yes:
o Description of drainage conveyance system location,
o Estimated spill volume fully recovered within the drainage conveyance system, and
o Estimated spill volume remaining within the drainage conveyance system;
5. Estimated total spill volume exiting the sanitary sewer system;
6. Spill date and start time;
7. Spill cause(s) (for example, root intrusion, grease deposition, etc.);
8. System failure location (for example, main, pump station, etc.);
9. Description of spill response activities including description of immediate spill containment and cleanup efforts;
10. Description of how the volume estimation was calculated, including, at minimum:
9.b
Packet Pg. 383 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
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o The methodology and type of data relied upon, including supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and o The methodology and type of data relied upon to estimate the spill start time, ongoing spill rate at time of arrival (if applicable), and the spill end time;
11. Description of implemented system modifications and operating/maintenance modifications.
Recordkeeping of Individual Lateral Spill Information:
1. Date and time the Enrollee was notified of, or self-discovered, the spill;
2. Location of individual spill;
3. Estimated individual spill volume;
4. Spill cause(s) (for example, root intrusion, grease deposition, etc.); and
5. Description of how the volume estimations were calculated.
Total Annual Spill Information:
1. Estimated total annual spill volume;
2. Description of spill corrective actions, including at minimum:
o Local regulatory enforcement action taken against the sewer lateral owner in response to a spill, as applicable, and
o System operation, maintenance and program modifications implemented to prevent repeated spill occurrences at the same spill location.
4.5. Sewer System Telemetry Records
The Enrollee shall maintain the following sewer system telemetry records if used to document compliance with this General Order, and previous General Order 2006-0003-DWQ as applicable, including spill volume estimates:
• Supervisory control and data acquisition (SCADA) system(s); • Alarm system(s);
• Flow monitoring device(s) or other instrument(s) used to estimate sewage flow rates, and/or volumes;
• Computerized maintenance management system records; and • Asset management-related records.
4.6. Sewer System Management Plan Implementation Records The Enrollee shall maintain records documenting the Enrollee’s implementation of its Sewer System Management Plan, including documents supporting its Sewer System Management Plan audits, corrections, modifications, and updates to the Sewer System Management Plan.
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Packet Pg. 384 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING
AND RECORDKEEPING REQUIREMENTS December 6, 2022
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4.7. Audit Records
The Enrollee shall maintain, at minimum, the following records pertaining to its Sewer System Management Plan audits, and other internal audits:
• Completed audit documents and findings;
• Name and contact information of staff and/or consultants that conducted or involved in the audit; and
• Follow-up actions based on audit findings.
4.8. Equipment Records
The Enrollee shall maintain a log of all owned and leased sewer system cleaning, operational, maintenance, construction, and rehabilitation equipment.
4.9. Work Orders
The Enrollee shall maintain record of work orders for operations and maintenance projects.
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Packet Pg. 385 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02
FEBRUARY 2024
INTENTIONALLY LEFT BLANK
9.b
Packet Pg. 386 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02
FEBRUARY 2024
Appendix B
Chain of Custody Example Sheet
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Packet Pg. 387 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SAMPLER NAME SAMPLE LOCATION
SUPERVISOR NAME SAMPLE TYPE
Drainage Conveyance System (DCS) Prior to Discharge
Receiving Water Sample (RSW) Point of Discharge
OTHER PERSONNEL Receiving Water Sample (RSW) Upstream of Point of Discharge Receiving Water Sample (RSW) Downstream of Point of Discharge ID# DATE TIME # OF
(Lab Use Only) SAMPLED SAMPLED CONT.
DATE / TIME RECEIVED BY DATE / TIME
DATE / TIME RECEIVED BY DATE / TIME
Y / N
Samples Preserved Y / N
DATE / TIME RECEIVED BY DATE / TIME
Evidence Seals Present Y / N
Container Attacked Y / N
SPECIAL REQUIREMENTS / BILLING INFORMATION
RELINQUISHED BY
RELINQUISHED BY
OL = Oil
WW = Waste Water
DW = Drinking Water
SO = Soild/Soil
SL = Sludge
GW = Ground Water
SAMPLE TYPE CODE: SAMPLE CONDITION:
SEWER SPILL RECEIVING WATER MONITORING PLAN CHAIN OF CUSTODY RECORD 2255 La Brucherie Road, El Centro, CA 92243
Tel 760-337-4562
SM-992-B E. ColiSM-9223-B Enterococcus
WORK ORDER#______________________________
Fac ID
SW = Sea Water
Actual Temperature: Thermometer #:
Received On Ice
Sample Point ID/Name
OT = Other Matrix
SF = Surface Water
SPECIAL HANDLING
COMMENTS
RELINQUISHED BY
ANALYSES REQUESTED
EPA 350.1 Ammonia Nitrogen
Check
Check
Check
Check
Page_______ of _______
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Packet Pg. 388 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02
FEBRUARY 2024
INTENTIONALLY LEFT BLANK
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Packet Pg. 389 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02
FEBRUARY 2024
Appendix C
Sewer Spill Visual Observation Log
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Packet Pg. 390 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02
FEBRUARY 2024
Sewer Spill Visual Observation Log – Receiving Water Sampling Events Date and Time of Sample:
Sample ID:
Sample Location Description:
Sample Type (check one):
□ Drainage Conveyance System (DCS) Prior to Discharge
□ Receiving Water Sample (RSW) Point of Discharge
□ Receiving Water Sample (RSW) Upstream of Point of Discharge □ Receiving Water Sample (RSW) Downstream of Point of Discharge Weather:
Antecedent Conditions (last 48 hours):
Precipitation Total Last 48 Hours: (inches)
Sample Event Ambient Conditions:
Sampling Event Observations:
Estimate spill travel time to receiving water: (minutes) For spills entering a drainage conveyance system, estimated spill travel time from the point of entry into the drainage conveyance system to the point of discharge into the receiving water:
(minutes)
Estimated spill volume entering the receiving water: (gallons) Estimated receiving water flow rate: (Cubic feet per second) Odors: Yes □ No □
Floating Material: Yes □ No □
Suspended Material: Yes □ No □
Sheen: Yes □ No □
Discoloration: Yes □ No □
Turbidity: Yes □ No □
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Packet Pg. 391 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan)
SANITARY SEWER SPILL MONITORING PLAN
14650.02
FEBRUARY 2024
Photos (check all that apply):
Waterbody bank erosion: Yes □ No □
Floating material: Yes □ No □
Water surface sheen (potentially from oil and grease): Yes □ No □ Discoloration of receiving water: Yes □ No □
Impact to the receiving water: Yes □ No □
General Notes:
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Packet Pg. 392 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Appendix H
Sewer System Management Plan Change Log
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Packet Pg. 393 Attachment: El Centro SSMP Update 2023_Final (6177 : Sanitary Sewer System Management Plan) Appendix H: Sewer System Management Plan Change Log
City of El Centro Sewer System Management Plan
City of El Centro
SSMP Change Log
DATE SSMP ELEMENT DESCRIPTION OF CHANGE/REVISION MADE CHANGE AUTHORIZED BY