Agenda packet — Daly City City Council, April 24, 2023 (part 4 of 11)

A0.3
CAL GREEN SHEET 1
A0.2

GREEN BUILDING
CHAPTER 4

RESIDENTIAL MANDATORY MEASURES
DIVISION 4.1 PLANNING AND DESIGN

4.201 GENERAL

4.201.1 SCOPE. For the purposes of mandatory energy efficiency standards in this code, the California Energy Commission will continue to adopt mandatory standards.

DIVISION 4.2 ENERGY EFFICIENCY
DIVISION 4.3 WATER EFFICIENCY AND CONSERVATION

4.406 ENHANCED DURABILITY AND REDUCED MAINTENANCE

4.406.1 RODENT PROOFING. Annular spaces around pipes, electric cables, conduits or other openings in sole/bottom plates at exterior walls shall be protected against the passage of rodents by closing such openings with cement mortar, concrete masonry or a similar method acceptable to the enforcing agency.

4.408 CONSTRUCTION WASTE REDUCTION, DISPOSAL AND RECYCLING

4.408.1 CONSTRUCTION WASTE MANAGEMENT. Recycle and/or salvage for reuse a minimum of 65 percent of the non-hazardous construction and demolition waste in accordance with either Section

4.408.2, 4.408.3 or 4.408.4, or meet a more stringent local construction and demolition waste management ordinance.

Exceptions:

1. Excavated soil and land-clearing debris.

2. Alternate waste reduction methods developed by working with local agencies if diversion or recycle facilities capable of compliance with this item do not exist or are not located reasonably close to the jobsite.

3. The enforcing agency may make exceptions to the requirements of this section when isolated jobsites are located in areas beyond the haul boundaries of the diversion facility.

4.408.2 CONSTRUCTION WASTE MANAGEMENT PLAN. Submit a construction waste management plan in conformance with Items 1 through 5. The construction waste management plan shall be updated as necessary and shall be available during construction for examination by the enforcing agency.

1. Identify the construction and demolition waste materials to be diverted from disposal by recycling, reuse on the project or salvage for future use or sale.

2. Specify if construction and demolition waste materials will be sorted on-site (source separated) or bulk mixed (single stream).

3. Identify diversion facilities where the construction and demolition waste material collected will be taken.

4. Identify construction methods employed to reduce the amount of construction and demolition waste generated.

5. Specify that the amount of construction and demolition waste materials diverted shall be calculated by weight or volume, but not by both.

4.408.3 WASTE MANAGEMENT COMPANY. Utilize a waste management company, approved by the enforcing agency, which can provide verifiable documentation that the percentage of construction and demolition waste material diverted from the landfill complies with Section 4.408.1.

Note: The owner or contractor may make the determination if the construction and demolition waste materials will be diverted by a waste management company.

4.408.4 WASTE STREAM REDUCTION ALTERNATIVE [LR]. Projects that generate a total combined weight of construction and demolition waste disposed of in landfills, which do not exceed 3.4 lbs./sq.ft. of the building area shall meet the minimum 65% construction waste reduction requirement in Section 4.408.1

4.408.4.1 WASTE STREAM REDUCTION ALTERNATIVE. Projects that generate a total combined weight of construction and demolition waste disposed of in landfills, which do not exceed 2 pounds per square foot of the building area, shall meet the minimum 65% construction waste reduction requirement in Section 4.408.1

4.408.5 DOCUMENTATION. Documentation shall be provided to the enforcing agency which demonstrates compliance with Section 4.408.2, items 1 through 5, Section 4.408.3 or Section 4.408.4..

Notes:

1. Sample forms found in "A Guide to the California Green Building Standards Code (Residential)" located at www.hcd.ca.gov/CALGreen.html may be used to assist in documenting compliance with this section.

2. Mixed construction and demolition debris (C & D) processors can be located at the California Department of Resources Recycling and Recovery (CalRecycle).

4.410 BUILDING MAINTENANCE AND OPERATION

4.410.1 OPERATION AND MAINTENANCE MANUAL. At the time of final inspection, a manual, compact disc, web-based reference or other media acceptable to the enforcing agency which includes all of the following shall be placed in the building:

1. Directions to the owner or occupant that the manual shall remain with the building throughout the life cycle of the structure.

2. Operation and maintenance instructions for the following:
a. Equipment and appliances, including water-saving devices and systems, HVAC systems, photovoltaic systems, electric vehicle chargers, water-heating systems and other major appliances and equipment.
b. Roof and yard drainage, including gutters and downspouts. c. Space conditioning systems, including condensers and air filters. d. Landscape irrigation systems.
e. Water reuse systems.

3. Information from local utility, water and waste recovery providers on methods to further reduce resource consumption, including recycle programs and locations.

4. Public transportation and/or carpool options available in the area.

5. Educational material on the positive impacts of an interior relative humidity between 30-60 percent and what methods an occupant may use to maintain the relative humidity level in that range.

6. Information about water-conserving landscape and irrigation design and controllers which conserve water.

7. Instructions for maintaining gutters and downspouts and the importance of diverting water at least 5 feet away from the foundation.

8. Information on required routine maintenance measures, including, but not limited to, caulking, painting, grading around the building, etc.

9. Information about state solar energy and incentive programs available.

10. A copy of all special inspections verifications required by the enforcing agency or this code.

4.410.2 RECYCLING BY OCCUPANTS. Where 5 or more multifamily dwelling units are constructed on a building site, provide readily accessible area(s) that serves all buildings on the site and are identified for the depositing, storage and collection of non-hazardous materials for recycling, including (at a minimum) paper, corrugated cardboard, glass, plastics, organic waster, and metals, or meet a lawfully enacted local recycling ordinance, if more restrictive.

Exception: Rural jurisdictions that meet and apply for the exemption in Public Resources Code Section 42649.82 (a)(2)(A) et seq. are note required to comply with the organic waste portion of this section.

DIVISION 4.4 MATERIAL CONSERVATION AND RESOURCE

EFFICIENCY
DIVISION 4.5 ENVIRONMENTAL QUALITY

4.303 INDOOR WATER USE

4.303.1 WATER CONSERVING PLUMBING FIXTURES AND FITTINGS. Plumbing fixtures (water closets and urinals) and fittings (faucets and showerheads) shall comply with the sections 4.303.1.1, 4.303.1.2, 4.303.1.3, and 4.303.4.4.

Note: All noncompliant plumbing fixtures in any residential real property shall be replaced with water-conserving plumbing fixtures. Plumbing fixture replacement is required prior to issuance of a certificate of final completion, certificate of occupancy, or final permit approval by the local building department. See Civil Code Section 1101.1, et seq., for the definition of a noncompliant plumbing fixture, types of residential buildings affected and other important enactment dates.

4.303.1.1 Water Closets. The effective flush volume of all water closets shall not exceed 1.28 gallons per flush. Tank-type water closets shall be certified to the performance criteria of the U.S. EPA WaterSense Specification for Tank-type Toilets.

Note: The effective flush volume of dual flush toilets is defined as the composite, average flush volume of two reduced flushes and one full flush.

4.303.1.2 Urinals. The effective flush volume of wall mounted urinals shall not exceed 0.125 gallons per flush.

The effective flush volume of all other urinals shall not exceed 0.5 gallons per flush.

4.303.1.3 Showerheads.

4.303.1.3.1 Single Showerhead. Showerheads shall have a maximum flow rate of not more than 1.8 gallons per minute at 80 psi. Showerheads shall be certified to the performance criteria of the U.S. EPA WaterSense Specification for Showerheads.

4.303.1.3.2 Multiple showerheads serving one shower. When a shower is served by more than one showerhead, the combined flow rate of all the showerheads and/or other shower outlets controlled by a single valve shall not exceed 1.8 gallons per minute at 80 psi, or the shower shall be designed to only allow one shower outlet to be in operation at a time.

Note: A hand-held shower shall be considered a showerhead.

4.303.1.4 Faucets.

4.303.1.4.1 Residential Lavatory Faucets. The maximum flow rate of residential lavatory faucets shall not exceed 1.2 gallons per minute at 60 psi. The minimum flow rate of residential lavatory faucets shall not be less than 0.8 gallons per minute at 20 psi.

4.303.1.4.2 Lavatory Faucets in Common and Public Use Areas. The maximum flow rate of lavatory faucets installed in common and public use areas (outside of dwellings or sleeping units) in residential buildings shall not exceed 0.5 gallons per minute at 60 psi.

4.303.1.4.3 Metering Faucets. Metering faucets when installed in residential buildings shall not deliver more than 0.2 gallons per cycle.

4.303.1.4.4 Kitchen Faucets. The maximum flow rate of kitchen faucets shall not exceed 1.8 gallons per minute at 60 psi. Kitchen faucets may temporarily increase the flow above the maximum rate, but not to exceed 2.2 gallons per minute at 60 psi, and must default to a maximum flow rate of 1.8 gallons per minute at 60 psi.

Note: Where complying faucets are unavailable, aerators or other means may be used to achieve reduction.

4.303.2 STANDARDS FOR PLUMBING FIXTURES AND FITTINGS. Plumbing fixtures and fittings shall be installed in accordance with the California Plumbing Code, and shall meet the applicable standards referenced in Table 1701.1 of the California Plumbing Code.

TABLE - MAXIMUM FIXTURE WATER USE

FIXTURE TYPE FLOW RATE

SHOWER HEADS
(RESIDENTIAL) 1.8 GMP @ 80 PSI

LAVATORY FAUCETS
(RESIDENTIAL)
MAX. 1.2 GPM @ 60 PSI
MIN. 0.8 GPM @ 20 PSI

LAVATORY FAUCETS IN

COMMON & PUBLIC USE AREAS

0.5 GPM @ 60 PSI
KITCHEN FAUCETS 1.8 GPM @ 60 PSI
METERING FAUCETS 0.2 GAL/CYCLE
WATER CLOSET 1.28 GAL/FLUSH
URINALS 0.125 GAL/FLUSH

4.304 OUTDOOR WATER USE

4.304.1 OUTDOOR POTABLE WATER USE IN LANDSCAPE AREAS. Residential developments shall comply with a local water efficient landscape ordinance or the current California Department of Water Resources' Model Water Efficient Landscape Ordinance (MWELO), whichever is more stringent.

NOTES:

1. The Model Water Efficient Landscape Ordinance (MWELO) is located in the California Code Regulations, Title 23, Chapter 2.7, Division 2. MWELO and supporting documents, including water budget calculator, are available at: https://www.water.ca.gov/
ABBREVIATION DEFINITIONS:

HCD Department of Housing and Community Development
BSC California Building Standards Commission
DSA-SS Division of the State Architect, Structural Safety OSHPD Office of Statewide Health Planning and Development LR Low Rise
HR High Rise
AA Additions and Alterations N New
NOTE:

THIS TABLE COMPILES THE DATA IN SECTION 4.303.1, AND
IS INCLUDED AS A CONVENIENCE FOR THE USER.

SECTION 4.102 DEFINITIONS

4.102.1 DEFINITIONS
The following terms are defined in Chapter 2 (and are included here for reference) FRENCH DRAIN. A trench, hole or other depressed area loosely filled with rock, gravel, fragments of brick or similar pervious material used to collect or channel drainage or runoff water.

WATTLES. Wattles are used to reduce sediment in runoff. Wattles are often constructed of natural plant materials such as hay, straw or similar material shaped in the form of tubes and placed on a downflow slope. Wattles are also used for perimeter and inlet controls.

4.106 SITE DEVELOPMENT

4.106.1 GENERAL. Preservation and use of available natural resources shall be accomplished through evaluation and careful planning to minimize negative effects on the site and adjacent areas. Preservation of slopes, management of storm water drainage and erosion controls shall comply with this section.

4.106.2 STORM WATER DRAINAGE AND RETENTION DURING CONSTRUCTION. Projects which disturb less than one acre of soil and are not part of a larger common plan of development which in total disturbs one acre or more, shall manage storm water drainage during construction. In order to manage storm water drainage during construction, one or more of the following measures shall be implemented to prevent flooding of adjacent property, prevent erosion and retain soil runoff on the site.

1. Retention basins of sufficient size shall be utilized to retain storm water on the site.

2. Where storm water is conveyed to a public drainage system, collection point, gutter or similar disposal method, water shall be filtered by use of a barrier system, wattle or other method approved by the enforcing agency.

3. Compliance with a lawfully enacted storm water management ordinance.

Note: Refer to the State Water Resources Control Board for projects which disturb one acre or more of soil, or are part of a larger common plan of development which in total disturbs one acre or more of soil. (Website: https://www.waterboards.ca.gov/water_issues/programs/stormwater/construction.html)

4.106.3 GRADING AND PAVING. Construction plans shall indicate how the site grading or drainage system will manage all surface water flows to keep water from entering buildings. Examples of methods to manage surface water include, but are not limited to, the following:

1. Swales

2. Water collection and disposal systems

3. French drains

4. Water retention gardens

5. Other water measures which keep surface water away from buildings and aid in groundwater recharge.

Exception: Additions and alterations not altering the drainage path.

4.106.4 Electric vehicle (EV) charging for new construction. New construction shall comply with Sections

4.106.4.1, 4.106.4.2, or 4.106.4.3 to facilitate future installation and use of EV chargers. Electric vehicle supply equipment (EVSE) shall be installed in accordance with the California Electrical Code, Article 625. Exceptions:

1. On a case-by-case basis, where the local enforcing agency has determined EV charging and infrastructure are not feasible based upon one or more of the following conditions:

1.1 Where there is no commercial power supply.

1.2 Where there is evidence substantiating that meeting the requirements will alter the local utility infrastructure design requirements on the utility side of the meter so as to increase the utility side cost to the homeowner or the developer by more than $400.00 per dwelling unit.

2. Accessory Dwelling Units (ADU) and Junior Accessory Dwelling Units (JADU) without additional parking facilities.

4.106.4.1 New one- and two-family dwellings and townhouses with attached private garages. For each dwelling unit, install a listed raceway to accommodate a dedicated 208/240-volt branch circuit. The raceway shall not be less than trade size 1 (nominal 1-inch inside diameter). The raceway shall originate at the main service or subpanel and shall terminate into a listed cabinet, box or other enclosure in close proximity to the proposed location of an EV charger. Raceways are required to be continuous at enclosed, inaccessible or concealed areas and spaces. The service panel and/or subpanel shall provide capacity to install a 40-ampere minimum dedicated branch circuit and space(s) reserved to permit installation of a branch circuit overcurrent protective device.

4.106.4.1.1 Identification. The service panel or subpanel circuit directory shall identify the overcurrent protective device space(s) reserved for future EV charging as "EV CAPABLE". The raceway termination location shall be permanently and visibly marked as "EV CAPABLE".

4.106.4.2 New multifamily dwellings. If residential parking is available, ten (10) percent of the total number of parking spaces on a building site, provided for all types of parking facilities, shall be electric vehicle charging spaces (EV spaces) capable of supporting future EVSE. Calculations for the required number of EV spaces shall be rounded up to the nearest whole number.

Notes:

1. Construction documents are intended to demonstrate the project's capability and capacity for facilitating future EV charging.

2. There is no requirement for EV spaces to be constructed or available until EV chargers are installed for use.

4.106.4.2.1 Electric vehicle charging space (EV space) locations. Construction documents shall indicate the location of proposed EV spaces. Where common use parking is provided at least one EV space shall be located in the common use parking area and shall be available for use by all residents.

CHAPTER 3

GREEN BUILDING
SECTION 301 GENERAL
301.1 SCOPE. Buildings shall be designed to include the green building measures specified as mandatory in the application checklists contained in this code. Voluntary green building measures are also included in the application checklists and may be included in the design and construction of structures covered by this code, but are not required unless adopted by a city, county, or city and county as specified in Section 101.7. 301.1.1 Additions and alterations. [HCD] The mandatory provisions of Chapter 4 shall be applied to additions or alterations of existing residential buildings where the addition or alteration increases the building's conditioned area, volume, or size. The requirements shall apply only to and/or within the specific area of the addition or alteration.

Note: On and after January 1, 2014, residential buildings undergoing permitted alterations, additions, or improvements shall replace noncompliant plumbing fixtures with water-conserving plumbing fixtures.

Plumbing fixture replacement is required prior to issuance of a certificate of final completion, certificate of occupancy or final permit approval by the local building department. See Civil Code Section 1101.1, et seq., for the definition of a noncompliant plumbing fixture, types of residential buildings affected and other important enactment dates.
301.2 LOW-RISE AND HIGH-RISE RESIDENTIAL BUILDINGS. [HCD] The provisions of individual sections of CALGreen may apply to either low-rise residential buildings high-rise residential buildings, or both. Individual sections will be designated by banners to indicate where the section applies specifically to low-rise only (LR) or high-rise only (HR). When the section applies to both low-rise and high-rise buildings, no banner will be used.

SECTION 302 MIXED OCCUPANCY BUILDINGS
302.1 MIXED OCCUPANCY BUILDINGS. In mixed occupancy buildings, each portion of a building shall comply with the specific green building measures applicable to each specific occupancy.

4.106.4.2.1.1 Electric Vehicle Charging Stations (EVCS) When EV chargers are installed, EV spaces required by Section 4.106.2.2, Item 3, shall comply with at least one of the following options:

1. The EV space shall be located adjacent to an accessible parking space meeting the requirements of the California Building Code, Chapter 11A, to allow use of the EV charger from the accessible parking space.

2. The EV space shall be located on an accessible route, as defined in the California Building Code, Chapter 2, to the building.

Exception: Electric vehicle charging stations designed and constructed in compliance with the California Building Code, Chapter 11B, are not required to comply with Section 4.106.4.2.1.1 and Section 4.106.4.2.2, Item 3.

Note: Electric Vehicle charging stations serving public housing are required to comply with the California Building Code, Chapter 11B.

4.106.4.2.2 Electric vehicle charging space (EV space) dimensions. The EV space shall be designed to comply with the following:

1. The minimum length of each EV space shall be 18 feet (5486 mm).

2. The minimum width of each EV space shall be 9 feet (2743 mm).

3. One in every 25 EV spaces, but not less than one EV space, shall have an 8-foot (2438 mm) wide minimum aisle. A 5-foot (1524 mm) wide minimum aisle shall be permitted provided the minimum width of the EV space is 12 feet (3658 mm).
a. Surface slope for this EV space and the aisle shall not exceed 1 unit vertical in 48 units horizontal (2.083 percent slope) in any direction.

4.106.4.2.3 Single EV space required. Install a listed raceway capable of accommodating a 208/240- volt dedicated branch circuit. The raceway shall not be less than trade size 1 (nominal 1-inch inside diameter). The raceway shall originate at the main service or subpanel and shall terminate into a listed cabinet, box or enclosure in close proximity to the proposed location of the EV space. Construction documents shall identify the raceway termination point. The service panel and/or subpanel shall provide capacity to install a 40-ampere minimum dedicated branch circuit and space(s) reserved to permit installation of a branch circuit overcurrent protective device.

4.106.4.2.4 Multiple EV spaces required. Construction documents shall indicate the raceway termination point and proposed location of future EV spaces and EV chargers. Construction documents shall also provide information on amperage of future EVSE, raceway method(s), wiring schematics and electrical load calculations to verify that the electrical panel service capacity and electrical system, including any on-site distribution transformer(s), have sufficient capacity to simultaneously charge all EVs at all required EV spaces at the full rated amperage of the EVSE. Plan design shall be based upon a 40-ampere minimum branch circuit. Required raceways and related components that are planned to be installed underground, enclosed, inaccessible or in concealed areas and spaces shall be installed at the time of original construction.

4.106.4.2.5 Identification. The service panel or subpanel circuit directory shall identify the overcurrent protective device space(s) reserved for future EV charging purposes as "EV CAPABLE" in accordance with the California Electrical Code.

4.106.4.3 New hotels and motels. All newly constructed hotels and motels shall provide EV spaces capable of supporting future installation of EVSE. The construction documents shall identify the location of the EV spaces.

Notes:

1. Construction documents are intended to demonstrate the project's capability and capacity or facilitating future EV charging.

2. There is no requirement for EV spaces to be constructed or available until EV chargers are installed for use.

4.106.4.3.1 Number of required EV spaces. The number of required EV spaces shall be based on the total number of parking spaces provided for all types of parking facilities in accordance with Table 4.106.4.3.1. Calculations for the required number of EV spaces shall be rounded up to the nearest whole number.

SECTION 4.501 GENERAL

4.501.1 Scope
The provisions of this chapter shall outline means of reducing the quality of air contaminants that are odorous, irritating and/or harmful to the comfort and well being of a building's installers, occupants and neighbors.

SECTION 4.502 DEFINITIONS

5.102.1 DEFINITIONS
The following terms are defined in Chapter 2 (and are included here for reference) AGRIFIBER PRODUCTS. Agrifiber products include wheatboard, strawboard, panel substrates and door cores, not including furniture, fixtures and equipment (FF&E) not considered base building elements.

COMPOSITE WOOD PRODUCTS. Composite wood products include hardwood plywood, particleboard and medium density fiberboard. "Composite wood products" does not include hardboard, structural plywood, structural panels, structural composite lumber, oriented strand board, glued laminated timber, prefabricated wood I-joists or finger-jointed lumber, all as specified in California Code of regulations (CCR), title 17, Section 93120.1.

DIRECT-VENT APPLIANCE. A fuel-burning appliance with a sealed combustion system that draws all air for combustion from the outside atmosphere and discharges all flue gases to the outside atmosphere.

DISCLAIMER:THIS DOCUMENT IS PROVIDED AND INTENDED TO BE USED AS A MEANS TO INDICATE AREAS OF COMPLIANCE WITH THE CALIFORNIA GREEN BUILDING STANDARDS (CALGREEN) CODE. DUE TO THE VARIABLES BETWEEN BUILDING DEPARTMENT JURISDICTIONS, THIS CHECKLIST IS TO BE USED ON AN INDIVIDUAL PROJECT BASIS AND MAY BE MODIFIED BY THE END USER TO MEET THOSE INDIVIDUAL NEEDS. THE END USER ASSUMES ALL RESPONSIBILITY ASSOCIATED WITH THE USE OF THIS DOCUMENT, INCLUDING VERIFICATION WITH THE FULL CODE.

TABLE 4.106.4.3.1

TOTAL NUMBER OF PARKING
SPACES

NUMBER OF REQUIRED EV
SPACES
0-9 0
10-25 1
26-50 2
51-75 4
76-100 5
101-150 7
151-200 10
201 and over 6 percent of total

4.106.4.3.2 Electric vehicle charging space (EV space) dimensions. The EV spaces shall be designed to comply with the following:

1. The minimum length of each EV space shall be 18 feet (5486mm).

2. The minimum width of each EV space shall be 9 feet (2743mm)

4.106.4.3.3 Single EV space required. When a single EV space is required, the EV space shall be designed in accordance with Section 4.106.4.2.3.

4.106.4.3.4 Multiple EV spaces required. When multiple EV spaces are required, the EV spaces shall be designed in accordance with Section 4.106.4.2.4.

4.106.4.3.5 Identification. The service panels or sub-panels shall be identified in accordance with Section

4.106.4.2.5.

4.106.4.3.6 Accessible EV spaces. In addition to the requirements in Section 4.106.4.3, EV spaces for hotels/motels and all EVSE, when installed, shall comply with the accessibility provisions for the EV charging stations in the California Building Code, Chapter 11B.

Y N/A RESPON. Y N/A Y N/A Y N/A
PARTY
RESPON.

PARTY
RESPON.

PARTY
2019 CALIFORNIA GREEN BUILDING STANDARDS CODE
RESIDENTIAL MANDATORY MEASURES, SHEET 1 (January 2020, Includes August 2019 Supplement) Y = YES
N/A = NOT APPLICABLE
RESPON. PARTY = RESPONSIBLE PARTY (ie: ARCHITECT, ENGINEER, OWNER, CONTRACTOR, INSPECTOR ETC.)

CONTRACTOR

CONRTACTOR
ARCH
ARCH
X
XX
ARCH
ARCH
ARCH
ARCH
ARCH
ARCH
ARCH
X
ARCH

CONTRACTOR

CONTRACTOR
GREEN
HALO
GREEN
HALO
GREEN
HALO
GREEN
HALO
xxxx
x
x
x
x
x
x
xxxxx
xxxxxxx
x
P A G E N U M B E R :

THESE DOCUMENTS SHALL REMAIN THE PROPERTY OF CHRIS KUMMERER ARCHITECT AND ARE INTENDED FOR USE AT THE PROJECT LOCATION STIPULATED ABOVE ONLY AND MAY NOT BE REPRODUCED IN ANY MANNER OR USED FOR OTHER LOCATIONS WITHOUT THE WRITTEN APPROVAL OF CHRIS KUMMERER.

R E V I S I O N S:

S T A M P :

DALY CITY CA 94014 APN #: 006-254-030
141 3rd AVENUE
PRE-APPLICATION SUBMITTAL 10.17.2019
PLANNING SUBMITTAL 6.10.2020
PLANNING RESUBMITTAL 4.19.2021
PLANNING RESUBMITTAL 9. 9. 2021
PLANNING RESUBMITTAL 5.27.2022
PLANNING RESUBMITTAL 12.21.2022

Page 589 of 1462 ends

A0.4
CAL GREEN SHEET 2
MAXIMUM INCREMENTAL REACTIVITY (MIR). The maximum change in weight of ozone formed by adding a compound to the "Base Reactive Organic Gas (ROG) Mixture" per weight of compound added, expressed to hundredths of a gram (g O³/g ROC).

Note: MIR values for individual compounds and hydrocarbon solvents are specified in CCR, Title 17, Sections 94700 and 94701.

MOISTURE CONTENT. The weight of the water in wood expressed in percentage of the weight of the oven-dry wood.

PRODUCT-WEIGHTED MIR (PWMIR). The sum of all weighted-MIR for all ingredients in a product subject to this article. The PWMIR is the total product reactivity expressed to hundredths of a gram of ozone formed per gram of product (excluding container and packaging).

Note: PWMIR is calculated according to equations found in CCR, Title 17, Section 94521 (a).

REACTIVE ORGANIC COMPOUND (ROC). Any compound that has the potential, once emitted, to contribute to ozone formation in the troposphere.

VOC. A volatile organic compound (VOC) broadly defined as a chemical compound based on carbon chains or rings with vapor pressures greater than 0.1 millimeters of mercury at room temperature. These compounds typically contain hydrogen and may contain oxygen, nitrogen and other elements. See CCR Title 17, Section 94508(a).

4.503 FIREPLACES

4.503.1 GENERAL. Any installed gas fireplace shall be a direct-vent sealed-combustion type. Any installed woodstove or pellet stove shall comply with U.S. EPA New Source Performance Standards (NSPS) emission limits as applicable, and shall have a permanent label indicating they are certified to meet the emission limits. Woodstoves, pellet stoves and fireplaces shall also comply with applicable local ordinances.

4.504 POLLUTANT CONTROL

4.504.1 COVERING OF DUCT OPENINGS & PROTECTION OF MECHANICAL EQUIPMENT DURING CONSTRUCTION. At the time of rough installation, during storage on the construction site and until final startup of the heating, cooling and ventilating equipment, all duct and other related air distribution component openings shall be covered with tape, plastic, sheet metal or other methods acceptable to the enforcing agency to reduce the amount of water, dust or debris which may enter the system.

4.504.2 FINISH MATERIAL POLLUTANT CONTROL. Finish materials shall comply with this section.

4.504.2.1 Adhesives, Sealants and Caulks. Adhesives, sealant and caulks used on the project shall meet the requirements of the following standards unless more stringent local or regional air pollution or air quality management district rules apply:

1. Adhesives, adhesive bonding primers, adhesive primers, sealants, sealant primers and caulks shall comply with local or regional air pollution control or air quality management district rules where applicable or SCAQMD Rule 1168 VOC limits, as shown in Table 4.504.1 or 4.504.2, as applicable.

Such products also shall comply with the Rule 1168 prohibition on the use of certain toxic compounds (chloroform, ethylene dichloride, methylene chloride, perchloroethylene and tricloroethylene), except for aerosol products, as specified in Subsection 2 below.

2. Aerosol adhesives, and smaller unit sizes of adhesives, and sealant or caulking compounds (in units of product, less packaging, which do not weigh more than 1 pound and do not consist of more than 16 fluid ounces) shall comply with statewide VOC standards and other requirements, including prohibitions on use of certain toxic compounds, of California Code of Regulations, Title 17, commencing with section 94507.

4.504.2.2 Paints and Coatings. Architectural paints and coatings shall comply with VOC limits in Table 1 of the ARB Architectural Suggested Control Measure, as shown in Table 4.504.3, unless more stringent local limits apply. The VOC content limit for coatings that do not meet the definitions for the specialty coatings categories listed in Table 4.504.3 shall be determined by classifying the coating as a Flat, Nonflat or Nonflat-High Gloss coating, based on its gloss, as defined in subsections 4.21, 4.36, and 4.37 of the 2007 California Air Resources Board, Suggested Control Measure, and the corresponding Flat, Nonflat or Nonflat-High Gloss VOC limit in Table 4.504.3 shall apply.

4.504.2.3 Aerosol Paints and Coatings. Aerosol paints and coatings shall meet the Product-weighted MIR Limits for ROC in Section 94522(a)(2) and other requirements, including prohibitions on use of certain toxic compounds and ozone depleting substances, in Sections 94522(e)(1) and (f)(1) of California Code of Regulations, Title 17, commencing with Section 94520; and in areas under the jurisdiction of the Bay Area Air Quality Management District additionally comply with the percent VOC by weight of product limits of Regulation 8, Rule 49.

4.504.2.4 Verification. Verification of compliance with this section shall be provided at the request of the enforcing agency. Documentation may include, but is not limited to, the following:

1. Manufacturer's product specification.

2. Field verification of on-site product containers.

CHAPTER 7

INSTALLER & SPECIAL INSPECTOR QUALIFICATIONS
702 QUALIFICATIONS
702.1 INSTALLER TRAINING. HVAC system installers shall be trained and certified in the proper installation of HVAC systems including ducts and equipment by a nationally or regionally recognized training or certification program. Uncertified persons may perform HVAC installations when under the direct supervision and responsibility of a person trained and certified to install HVAC systems or contractor licensed to install HVAC systems.

Examples of acceptable HVAC training and certification programs include but are not limited to the following:

1. State certified apprenticeship programs.

2. Public utility training programs.

3. Training programs sponsored by trade, labor or statewide energy consulting or verification organizations.

4. Programs sponsored by manufacturing organizations.

5. Other programs acceptable to the enforcing agency.
702.2 SPECIAL INSPECTION [HCD]. When required by the enforcing agency, the owner or the responsible entity acting as the owner's agent shall employ one or more special inspectors to provide inspection or other duties necessary to substantiate compliance with this code. Special inspectors shall demonstrate competence to the satisfaction of the enforcing agency for the particular type of inspection or task to be performed. In addition to other certifications or qualifications acceptable to the enforcing agency, the following certifications or education may be considered by the enforcing agency when evaluating the qualifications of a special inspector:

1. Certification by a national or regional green building program or standard publisher.

2. Certification by a statewide energy consulting or verification organization, such as HERS raters, building performance contractors, and home energy auditors.

3. Successful completion of a third party apprentice training program in the appropriate trade.

4. Other programs acceptable to the enforcing agency.

Notes:

1. Special inspectors shall be independent entities with no financial interest in the materials or the project they are inspecting for compliance with this code.

2. HERS raters are special inspectors certified by the California Energy Commission (CEC) to rate homes in California according to the Home Energy Rating System (HERS). [BSC] When required by the enforcing agency, the owner or the responsible entity acting as the owner's agent shall employ one or more special inspectors to provide inspection or other duties necessary to substantiate compliance with this code. Special inspectors shall demonstrate competence to the satisfaction of the enforcing agency for the particular type of inspection or task to be performed. In addition, the special inspector shall have a certification from a recognized state, national or international association, as determined by the local agency. The area of certification shall be closely related to the primary job function, as determined by the local agency.

Note: Special inspectors shall be independent entities with no financial interest in the materials or the project they are inspecting for compliance with this code. 703 VERIFICATIONS
703.1 DOCUMENTATION. Documentation used to show compliance with this code shall include but is not limited to, construction documents, plans, specifications, builder or installer certification, inspection reports, or other methods acceptable to the enforcing agency which demonstrate substantial conformance. When specific documentation or special inspection is necessary to verify compliance, that method of compliance will be specified in the appropriate section or identified applicable checklist.

4.505 INTERIOR MOISTURE CONTROL

4.505.1 General. Buildings shall meet or exceed the provisions of the California Building Standards Code. 4.505.2 CONCRETE SLAB FOUNDATIONS. Concrete slab foundations required to have a vapor retarder by California Building Code, Chapter 19, or concrete slab-on-ground floors required to have a vapor retarder by the California Residential Code, Chapter 5, shall also comply with this section.

4.505.2.1 Capillary break. A capillary break shall be installed in compliance with at least one of the following:

1. A 4-inch (101.6 mm) thick base of 1/2 inch (12.7mm) or larger clean aggregate shall be provided with a vapor barrier in direct contact with concrete and a concrete mix design, which will address bleeding, shrinkage, and curling, shall be used. For additional information, see American Concrete Institute, ACI 302.2R-06.

2. Other equivalent methods approved by the enforcing agency.

3. A slab design specified by a licensed design professional.

4.505.3 MOISTURE CONTENT OF BUILDING MATERIALS. Building materials with visible signs of water damage shall not be installed. Wall and floor framing shall not be enclosed when the framing members exceed 19 percent moisture content. Moisture content shall be verified in compliance with the following:

1. Moisture content shall be determined with either a probe-type or contact-type moisture meter.Equivalent moisture verification methods may be approved by the enforcing agency and shall satisfy requirements found in Section 101.8 of this code.

2. Moisture readings shall be taken at a point 2 feet (610 mm) to 4 feet (1219 mm) from the grade stamped end of each piece verified.

3. At least three random moisture readings shall be performed on wall and floor framing with documentation acceptable to the enforcing agency provided at the time of approval to enclose the wall and floor framing.

Insulation products which are visibly wet or have a high moisture content shall be replaced or allowed to dry prior to enclosure in wall or floor cavities. Wet-applied insulation products shall follow the manufacturers' drying recommendations prior to enclosure.

4.506 INDOOR AIR QUALITY AND EXHAUST

4.506.1 Bathroom exhaust fans. Each bathroom shall be mechanically ventilated and shall comply with the following:

1. Fans shall be ENERGY STAR compliant and be ducted to terminate outside the building.

2. Unless functioning as a component of a whole house ventilation system, fans must be controlled by a humidity control.
a. Humidity controls shall be capable of adjustment between a relative humidity range less than or equal to 50% to a maximum of 80%. A humidity control may utilize manual or automatic means of adjustment.
b. A humidity control may be a separate component to the exhaust fan and is not required to be integral (i.e., built-in)
Notes:

1. For the purposes of this section, a bathroom is a room which contains a bathtub, shower or tub/shower combination.

2. Lighting integral to bathroom exhaust fans shall comply with the California Energy Code.

4.507 ENVIRONMENTAL COMFORT

4.507.2 HEATING AND AIR-CONDITIONING SYSTEM DESIGN. Heating and air conditioning systems shall be sized, designed and have their equipment selected using the following methods:

1. The heat loss and heat gain is established according to ANSI/ACCA 2 Manual J - 2011 (Residential Load Calculation), ASHRAE handbooks or other equivalent design software or methods.

2. Duct systems are sized according to ANSI/ACCA 1 Manual D - 2014 (Residential Duct Systems), ASHRAE handbooks or other equivalent design software or methods.

3. Select heating and cooling equipment according to ANSI/ACCA 3 Manual S - 2014 (Residential Equipment Selection), or other equivalent design software or methods.

Exception: Use of alternate design temperatures necessary to ensure the system functions are acceptable.

TABLE 4.504.1 - ADHESIVE VOC LIMIT1,2
(Less Water and Less Exempt Compounds in Grams per Liter)

ARCHITECTURAL APPLICATIONS VOC LIMIT
INDOOR CARPET ADHESIVES 50
CARPET PAD ADHESIVES 50
OUTDOOR CARPET ADHESIVES 150
WOOD FLOORING ADHESIVES 100
RUBBER FLOOR ADHESIVES 60
SUBFLOOR ADHESIVES 50
CERAMIC TILE ADHESIVES 65
VCT & ASPHALT TILE ADHESIVES 50
DRYWALL & PANEL ADHESIVES 50
COVE BASE ADHESIVES 50
MULTIPURPOSE CONSTRUCTION ADHESIVE 70
STRUCTURAL GLAZING ADHESIVES 100
SINGLE-PLY ROOF MEMBRANE ADHESIVES 250
OTHER ADHESIVES NOT LISTED 50

SPECIALTY APPLICATIONS
PVC WELDING 510
CPVC WELDING 490
ABS WELDING 325
PLASTIC CEMENT WELDING 250
ADHESIVE PRIMER FOR PLASTIC 550
CONTACT ADHESIVE 80
SPECIAL PURPOSE CONTACT ADHESIVE 250
STRUCTURAL WOOD MEMBER ADHESIVE 140
TOP & TRIM ADHESIVE 250

SUBSTRATE SPECIFIC APPLICATIONS
METAL TO METAL 30
PLASTIC FOAMS 50
POROUS MATERIAL (EXCEPT WOOD) 50
WOOD 30
FIBERGLASS 80

1. IF AN ADHESIVE IS USED TO BOND DISSIMILAR SUBSTRATES TOGETHER, THE ADHESIVE WITH THE HIGHEST VOC CONTENT SHALL BE ALLOWED.

2. FOR ADDITIONAL INFORMATION REGARDING METHODS TO MEASURE

THE VOC CONTENT SPECIFIED IN THIS TABLE, SEE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT RULE 1168.

TABLE 4.504.2 - SEALANT VOC LIMIT
(Less Water and Less Exempt Compounds in Grams per Liter)

SEALANTS VOC LIMIT
ARCHITECTURAL 250
MARINE DECK 760
NONMEMBRANE ROOF 300
ROADWAY 250
SINGLE-PLY ROOF MEMBRANE 450
OTHER 420

SEALANT PRIMERS

ARCHITECTURAL
NON-POROUS 250
POROUS 775
MODIFIED BITUMINOUS 500
MARINE DECK 760
OTHER 750
TABLE 4.504.5 - FORMALDEHYDE LIMITS1

MAXIMUM FORMALDEHYDE EMISSIONS IN PARTS PER MILLION

PRODUCT CURRENT LIMIT
HARDWOOD PLYWOOD VENEER CORE 0.05
HARDWOOD PLYWOOD COMPOSITE CORE 0.05
PARTICLE BOARD 0.09
MEDIUM DENSITY FIBERBOARD 0.11
THIN MEDIUM DENSITY FIBERBOARD2 0.13

1. VALUES IN THIS TABLE ARE DERIVED FROM THOSE SPECIFIED BY THE CALIF. AIR RESOURCES BOARD, AIR TOXICS CONTROL

MEASURE FOR COMPOSITE WOOD AS TESTED IN ACCORDANCE
WITH ASTM E 1333. FOR ADDITIONAL INFORMATION, SEE CALIF.

CODE OF REGULATIONS, TITLE 17, SECTIONS 93120 THROUGH
93120.12.

2. THIN MEDIUM DENSITY FIBERBOARD HAS A MAXIMUM
THICKNESS OF 5/16" (8 MM).

TABLE 4.504.3 - VOC CONTENT LIMITS FOR
ARCHITECTURAL COATINGS2,3

GRAMS OF VOC PER LITER OF COATING, LESS WATER & LESS EXEMPT

COMPOUNDS

COATING CATEGORY VOC LIMIT
FLAT COATINGS 50
NON-FLAT COATINGS 100
NONFLAT-HIGH GLOSS COATINGS 150

SPECIALTY COATINGS
ALUMINUM ROOF COATINGS 400
BASEMENT SPECIALTY COATINGS 400
BITUMINOUS ROOF COATINGS 50
BITUMINOUS ROOF PRIMERS 350
BOND BREAKERS 350
CONCRETE CURING COMPOUNDS 350
CONCRETE/MASONRY SEALERS 100
DRIVEWAY SEALERS 50
DRY FOG COATINGS 150
FAUX FINISHING COATINGS 350
FIRE RESISTIVE COATINGS 350
FLOOR COATINGS 100
FORM-RELEASE COMPOUNDS 250
GRAPHIC ARTS COATINGS (SIGN PAINTS) 500
HIGH TEMPERATURE COATINGS 420
INDUSTRIAL MAINTENANCE COATINGS 250
LOW SOLIDS COATINGS1 120
MAGNESITE CEMENT COATINGS 450
MASTIC TEXTURE COATINGS 100
METALLIC PIGMENTED COATINGS 500
MULTICOLOR COATINGS 250
PRETREATMENT WASH PRIMERS 420
PRIMERS, SEALERS, & UNDERCOATERS 100
REACTIVE PENETRATING SEALERS 350
RECYCLED COATINGS 250
ROOF COATINGS 50
RUST PREVENTATIVE COATINGS 250

SHELLACS
CLEAR 730
OPAQUE 550

SPECIALTY PRIMERS, SEALERS &

UNDERCOATERS
100
STAINS 250
STONE CONSOLIDANTS 450
SWIMMING POOL COATINGS 340
TRAFFIC MARKING COATINGS 100
TUB & TILE REFINISH COATINGS 420
WATERPROOFING MEMBRANES 250
WOOD COATINGS 275
WOOD PRESERVATIVES 350
ZINC-RICH PRIMERS 340

1. GRAMS OF VOC PER LITER OF COATING, INCLUDING WATER &

EXEMPT COMPOUNDS

2. THE SPECIFIED LIMITS REMAIN IN EFFECT UNLESS REVISED LIMITS ARE LISTED IN SUBSEQUENT COLUMNS IN THE TABLE.

3. VALUES IN THIS TABLE ARE DERIVED FROM THOSE SPECIFIED BY

THE CALIFORNIA AIR RESOURCES BOARD, ARCHITECTURAL COATINGS SUGGESTED CONTROL MEASURE, FEB. 1, 2008. MORE INFORMATION IS AVAILABLE FROM THE AIR RESOURCES BOARD.

DIVISION 4.5 ENVIRONMENTAL QUALITY (continued)

4.504.3 CARPET SYSTEMS. All carpet installed in the building interior shall meet the testing and product requirements of at least one of the following:

1. Carpet and Rug Institute's Green Label Plus Program.

2. California Department of Public Health, "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers" Version 1.1, February 2010 (also known as Specification 01350).

3. NSF/ANSI 140 at the Gold level.

4. Scientific Certifications Systems Indoor AdvantageTM Gold.

4.504.3.1 Carpet cushion. All carpet cushion installed in the building interior shall meet the requirements of the Carpet and Rug Institute's Green Label program.

4.504.3.2 Carpet adhesive. All carpet adhesive shall meet the requirements of Table 4.504.1.

4.504.4 RESILIENT FLOORING SYSTEMS. Where resilient flooring is installed , at least 80% of floor area receiving resilient flooring shall comply with one or more of the following:

1. Products compliant with the California Department of Public Health, "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers," Version 1.1, February 2010 (also known as Specification 01350), certified as a CHPS Low-Emitting Material in the Collaborative for High Performance Schools (CHPS) High Performance Products Database.

2. Products certified under UL GREENGUARD Gold (formerly the Greenguard Children & Schools program).

3. Certification under the Resilient Floor Covering Institute (RFCI) FloorScore program.

4. Meet the California Department of Public Health, "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers", Version 1.1, February 2010 (also known as Specification 01350).

4.504.5 COMPOSITE WOOD PRODUCTS. Hardwood plywood, particleboard and medium density fiberboard composite wood products used on the interior or exterior of the buildings shall meet the requirements for formaldehyde as specified in ARB's Air Toxics Control Measure for Composite Wood (17 CCR 93120 et seq.), by or before the dates specified in those sections, as shown in Table 4.504.5

4.504.5.1 Documentation. Verification of compliance with this section shall be provided as requested by the enforcing agency. Documentation shall include at least one of the following:

1. Product certifications and specifications.

2. Chain of custody certifications.

3. Product labeled and invoiced as meeting the Composite Wood Products regulation (see CCR, Title 17, Section 93120, et seq.).

4. Exterior grade products marked as meeting the PS-1 or PS-2 standards of the Engineered Wood Association, the Australian AS/NZS 2269, European 636 3S standards, and Canadian CSA 0121, CSA 0151, CSA 0153 and CSA 0325 standards.

5. Other methods acceptable to the enforcing agency.

Y N/A RESPON. Y N/A Y N/A Y N/A
PARTY
RESPON.

PARTY
RESPON.

CONTRACTOR

CONTRACTOR
ARCH

CONTRACTOR

CONTRACTOR XXX

CONTRACTOR

CONTRACTOR
ARCH

CONTRACTOR

CONTRACTOR
CONTRACTOR xxxxxx
x
xxxx
xx
xxx
xxx
x
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 590 of 1462 ends

RETAINING WALL RETAINING WALL

PLANTING AREA

PLANTING AREA
LS
BUFFER
LS
BUFFER
30'-0" 30'-0"

RETAINING WALL
15'-0"

FRONT SETBACK
10'-0" FRONT SETBACK

PERVIOUS ASPHALT

DRIVEWAY
149.237'
193.95' N7 53' 26"W
N2 00' 06"W 193.15'
4'-5" 4'-5" 4'-5"
3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1"

CONCRETE SIDEWALK

FIRE HYDRANT PER CITY

STANDARD
2 STORY ADJ. HOUSE
2 STORY HOUSE

LOW FENCE

VALLEY GUTTER

LOW FENCE
LS
BUFFER
AC
EM
GM
EM
GM
AC
EM
GM
AC
GM
AC
EM
EM
GM
AC
EM
GM
AC
GM
EM
AC
AC
GM EM
GM
EM
GM
EM
GM
EM
GM
GM
EM
EM
GM
EM
AC
AC
AC
AC
AC
AC
T

RETAINING WALL
6" CURB
5'-0"

SIDEWALK
5'-0"
6" CURB

SIDEWALK

VALLEY GUTTER

SIDEWALK
UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6
UNIT #12 UNIT #11 UNIT #8 UNIT #7
UNIT #14 UNIT #13
UNIT #10 UNIT #9
4'-5" 7'-9"
26'-0"

DRIVEWAY
60'-0" 60'-0"
26'-0"
5'-0"

SIDEWALK
4'-5"

PLANTING AREA

CONDRETE
DRIVEWAYS, TYP.

PROPOSED SITE PLAN 0 4 8 12 16 20 FT 1 Scale: 1" = 10'-0"

PROPOSED BIO-TREATMENT AREA
- SEE CIVIL PLANS

CONCRETE SIDEWALK

CONCRETE CURB & GUTTER

PLANTER STRIP
3RD A V E N U E
3 STORY ADJ. HOUSES
171.17'
TRUE
NORTH

PROJECT NORTH

PRIVATE REAR
YARDS

PRIVATE REAR YARD
2 STORY HOUSE
A1.0
6'-0"TALL FENCE
( SHOWN HATCHED - TYP.)

TRASH/ RECYCLE PICK-UP

LOCATION (DASHED)

TRASH/ RECYCLE

PRIVATE REAR
YARD
2 STORY HOUSE

TALL FENCE ALONG REAR PROPERTY LINE

ELECTRICAL TRANSFORMER &

PROTECTIVE BOLLARDS
6" CURB
5'-0"
6"CURB
5'-0"
5'-0"
5'-0"

WIDEN EXISTING
SIDEWALK TO 5'-0"
13'-2 3/4"
6'-0"
13'-2 3/4"
8'-0"

SEE LANDSCAPE PLAN FOR PROPOSED
TREES AND LANDSCAPING ALONG 3RD
AVENUE

FIRE ACCESS ROAD SIGNAGE

AND MARKING SHALL CONFORM
TO APPENDIX D OF THE 2016 CFC

FIRE ACCESS ROAD SIGNAGE

AND MARKING SHALL CONFORM
TO APPENDIX D OF THE 2016 CFC

MAILBOXES
3'-0"TALL FENCE ALONG FRONT

PROPERTY LINE ( SHOWN SHADED -
TYP.)

EXISTING TREE TO REAMAIN
126' HOSE LAY
149' HOSE LAY
149' HOSE LAY
149' HOSE LAY
147' HOSE LAY
147' HOSE LAY
131' HOSE LAY
131' HOSE LAY
2'-10 1/8"
4'-6"
20'-0" 20'-0"
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 591 of 1462 ends

30'-0" 30'-0"

RETAINING WALL RETAINING WALL

PLANTING AREA

PLANTING AREA
LS
BUFFER
LS
BUFFER

RETAINING WALL
15'-0"

FRONT SETBACK
10'-0" FRONT SETBACK
149.237'
193.95' N7 53' 26"W
N2 00' 06"W 193.15'
4'-5" 4'-5" 4'-5"
3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1"

CONCRETE SIDEWALK

CONCRETE SIDEWALK
2 STORY ADJ. HOUSE

LOW FENCE

VALLEY GUTTER
LS
BUFFER

RETAINING WALL
5'-0"

SIDEWALK
5'-0"
6" CURB

SIDEWALK

VALLEY GUTTER

SIDEWALK
UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6
UNIT #12 UNIT #11 UNIT #8 UNIT #7
UNIT #14 UNIT #13
UNIT #10 UNIT #9
4'-5" 7'-9"
26'-0"

DRIVEWAY
60'-0" 60'-0"
26'-0"
5'-0"

SIDEWALK
4'-5"

PLANTING AREA
3RD A V E N U E
171.17'
6" CURB
5'-0"
6"CURB
5'-0"
5'-0"
13'-2 3/4"
7'-7 7/8"
13'-2 3/4"
8'-0"

FIRE ACCESS ROAD SIGNAGE

AND MARKING SHALL CONFORM
TO APPENDIX D OF THE 2016 CFC

MAILBOXES
2 TANDEM COVERED

PARKING SPACES
(10'-0"x19'-0") TYP. PER
UNIT
CONCRETE DRIVEWAYTYP.

PEDESTRIAN ENTRY
(FRONT DOOR)
10' x 18' COMPACT PARKING 10' x 20' STREET PARKING - TYP. 10' x 18' COMPACT PARKING T
T
0 8 16 24 32 40 FT PRIVATE OPEN SPACE DIAGRAM 2 Scale: 1/16" = 1'-0"0 8 16 24 32 40 FT PARKING AND CIRCULATION DIAGRAM 1 Scale: 1/16" = 1'-0"

PARKING STANDARDS
2 SPACES
2 SPACES
(TANDEM, COVERED)
28 SPACES
28 SPACES
EXISTING STREET PARKING SPACES IN FRONT OF PROPERTY 7 SPACES

REQUIRED CAR PARKING FOR EACH UNIT

PARKING PROVIDED FOR EACH UNIT
REQUIRED CAR PARKING SPACES FOR 14 UNITS (14x2)

TOTAL PROVIDED PARKING
PROPOSED STREET PARKING SPACES IN FRONT OF PROPERTY 8 SPACES

ENTRY ENTRY
ENTRY
120' HAMMERHEAD

DEAD END FIRE APPARATUS

TURN-AROUND ACCESS ROAD
(FIRE CODE, APPENDIX D)
REFER: DALY CITY MUNICIPAL
CODE, FIGURE D103.1
A1.1
30'-0" 30'-0"

RETAINING WALL RETAINING WALL

PLANTING AREA

PLANTING AREA
LS
BUFFER
LS
BUFFER

RETAINING WALL
15'-0"

FRONT SETBACK
10'-0" FRONT SETBACK
149.237'
193.95' N7 53' 26"W
N2 00' 06"W 193.15'
4'-5" 4'-5" 4'-5"
3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1"

CONCRETE SIDEWALK

CONCRETE SIDEWALK
2 STORY ADJ. HOUSE

LOW FENCE

VALLEY GUTTER
LS
BUFFER

RETAINING WALL
5'-0"

SIDEWALK
5'-0"
6" CURB

SIDEWALK

VALLEY GUTTER

SIDEWALK
UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6
UNIT #12 UNIT #11 UNIT #8 UNIT #7
UNIT #14 UNIT #13
UNIT #10 UNIT #9
4'-5" 7'-9"
26'-0"

DRIVEWAY
60'-0" 60'-0"
26'-0"
5'-0"

SIDEWALK
4'-5"

PLANTING AREA
3RD A V E N U E
171.17'
6" CURB
5'-0"
6"CURB
5'-0"
5'-0"
13'-2 3/4"
7'-7 7/8"
13'-2 3/4"
8'-0"

FIRE ACCESS ROAD SIGNAGE

AND MARKING SHALL CONFORM
TO APPENDIX D OF THE 2016 CFC

MAILBOXES
2 TANDEM COVERED

PARKING SPACES
(10'-0"x19'-0") TYP. PER
UNIT
CONCRETE DRIVEWAYTYP.

PEDESTRIAN ENTRY
(FRONT DOOR)
10' x 18' COMPACT PARKING 10' x 20' STREET PARKING - TYP. 10' x 18' COMPACT PARKING T
T
150 SF 150 SF
150 SF 150 SF
150 SF 150 SF
150 SF
150 SF
150 SF
150 SF
150 SF
150 SF
150 SF 150 SF
2ND FLOOR
ROOF
DECK
2ND FLOOR
ROOF
DECK
2ND FLOOR
ROOF
DECK
2ND FLOOR
ROOF
DECK
2ND FLOOR
ROOF
DECK
2ND FLOOR
ROOF
DECK
2ND FLOOR
ROOF
DECK
2ND FLOOR
ROOF
DECK

PRIVATE REAR
YARD

PRIVATE REAR
YARD
2ND FLOOR
ROOF
DECK
2ND FLOOR
ROOF
DECK
150 SF MIN. PRIVATE

OPEN SPACE PER UNIT
- TYP. (SHOWN

DASHED)

PRIVATE

REAR YARD

PRIVATE

REAR YARD

PRIVATE

REAR YARD

PRIVATE

REAR YARD PRIVATE

REAR YARD

PRIVATE

REAR YARD

PRIVATE

FRONT YARD

PRIVATE

FRONT YARD PRIVATE

FRONT YARD
FRONT
YARD

PRIVATE

FRONT YARD

PRIVATE

FRONT YARD
2ND FLOOR
ROOF
DECK
2ND FLOOR
ROOF
DECK
2ND FLOOR
ROOF
DECK
2ND FLOOR
ROOF
DECK
FRONT
YARD
ENTRY
ENTRY
ENTRY
ENTRY
ENTRY
ENTRY
ENTRY

ENTRY ENTRY

ENTRY ENTRY
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 592 of 1462 ends

RETAINING WALL RETAINING WALL

PLANTING AREA

PLANTING AREA
LS
BUFFER
LS
BUFFER

RETAINING WALL
15'-0"

FRONT SETBACK
10'-0" FRONT SETBACK
149.237'
193.95' N7 53' 26"W
N2 00' 06"W 193.15'
4'-5" 4'-5" 4'-5"
3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1"

CONCRETE SIDEWALK

CONCRETE SIDEWALK
2 STORY ADJ. HOUSE

LOW FENCE

VALLEY GUTTER
LS
BUFFER

RETAINING WALL
5'-0"

SIDEWALK
5'-0"
6" CURB

SIDEWALK

VALLEY GUTTER

SIDEWALK
UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6
UNIT #12 UNIT #11 UNIT #8 UNIT #7
UNIT #14 UNIT #13
UNIT #10 UNIT #9
4'-5" 7'-9"
26'-0"

DRIVEWAY
60'-0" 60'-0"
26'-0"
5'-0"

SIDEWALK
4'-5"

PLANTING AREA
AC
EM
GM
EM
GM
AC
EM
GM
AC
GM
AC
EM
EM
GM
AC
EM
GM
AC
GM
EM
AC
AC
GM EM
GM
EM
GM
GM
EM
EM
GM
GM
EM
EM
GM
EM
AC
AC
AC
AC
AC
AC
T
171.17'
6" CURB
5'-0"
6"CURB
5'-0"
5'-0"
13'-2 3/4"
7'-7 7/8"
13'-2 3/4"
8'-0"

FIRE ACCESS ROAD SIGNAGE

AND MARKING SHALL CONFORM
TO APPENDIX D OF THE 2016 CFC
MAILBOXES A1.2
2 CAR GARAGE

EXTERIOR
PORCH
ENTRY

STUDY/ HANG-OUT
BATH 1
PROPOSED SITE WITH FIRST FLOOR PLAN 1 Scale: 1/8" = 1'-0" SEE SHEET A2.0 FOR 1/4"

SCALE UNIT FLOOR PLAN

OF TYPICAL FRONT
DUPLEX UNIT 1
A2.0
SEE SHEET A2.1 FOR 1/4"

SCALE UNIT FLOOR PLAN

OF TYPICAL REAR DUPLEX
UNIT 1
A2.1
1/A1.5
2/A1.5
3/A1.5
2/A1.6
1/A1.6
3/A1.6
0 4 8 12 16 20 FT
TRUE
NORTH

PROJECT NORTH
3RD A V E N U E
8'-0"
8'-0"
8'-0"
8'-0"
UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6
UNIT #12 UNIT #11 UNIT #8 UNIT #7
UNIT #14 UNIT #13
UNIT #10 UNIT #9
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 593 of 1462 ends

RETAINING WALL RETAINING WALL

PLANTING AREA

PLANTING AREA
LS
BUFFER
LS
BUFFER

RETAINING WALL
15'-0"

FRONT SETBACK
10'-0" FRONT SETBACK
149.237'
193.95' N7 53' 26"W
N2 00' 06"W 193.15'
4'-5" 4'-5" 4'-5"
3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1"

CONCRETE SIDEWALK

CONCRETE SIDEWALK
2 STORY ADJ. HOUSE

LOW FENCE

VALLEY GUTTER
LS
BUFFER

RETAINING WALL
5'-0"

SIDEWALK
5'-0"
6" CURB

SIDEWALK

VALLEY GUTTER

SIDEWALK
UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6
UNIT #12 UNIT #11 UNIT #8 UNIT #7
UNIT #14 UNIT #13
UNIT #10 UNIT #9
4'-5" 7'-9"
26'-0"

DRIVEWAY
60'-0" 60'-0"
26'-0"
5'-0"

SIDEWALK
4'-5"

FIRE ACCESS ROAD SIGNAGE

AND MARKING SHALL CONFORM
TO APPENDIX D OF THE 2016 CFC
MAILBOXES A1.3
±8'-6"
±8'-6"
PROPOSED SITE WITH SECOND FLOOR PLAN 1 Scale: 1/8" = 1'-0"

KITCHEN
DINING
PANTRY
POWDER
LIVING
SEE SHEET A2.0 FOR 1/4"

SCALE UNIT FLOOR PLAN

OF TYPICAL FRONT
DUPLEX UNIT 2
A2.0
SEE SHEET A2.1 FOR 1/4"

SCALE UNIT FLOOR PLAN

OF TYPICAL REAR DUPLEX
UNIT 2
A2.1
SEE SHEET A2.2 FOR 1/4"

SCALE UNIT FLOOR PLAN
OF TRIPLEX 2
A2.2
1/A1.5
2/A1.5
3/A1.5
2/A1.6
1/A1.6
3/A1.6
0 4 8 12 16 20 FT
TRUE
NORTH

PROJECT NORTH

PRIVACY SCREENING
(ON UNITS INDICATED)

COVERED

PATIO COVERED
PATIO

COVERED

PATIO COVERED
PATIO

COVERED
PATIO

COVERED

PATIO COVERED
PATIO

COVERED
PATIO
UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6
UNIT #12 UNIT #11 UNIT #8 UNIT #7
UNIT #14 UNIT #13
UNIT #10 UNIT #9
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 594 of 1462 ends

RETAINING WALL RETAINING WALL

PLANTING AREA

PLANTING AREA
LS
BUFFER
LS
BUFFER

RETAINING WALL
15'-0"

FRONT SETBACK
10'-0" FRONT SETBACK
149.237'
193.95' N7 53' 26"W
N2 00' 06"W 193.15'
4'-5" 4'-5" 4'-5"
3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1"

CONCRETE SIDEWALK

CONCRETE SIDEWALK
2 STORY ADJ. HOUSE

LOW FENCE

VALLEY GUTTER
LS
BUFFER

RETAINING WALL
5'-0"

SIDEWALK
5'-0"
6" CURB

SIDEWALK

VALLEY GUTTER

SIDEWALK
UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6
UNIT #12 UNIT #11 UNIT #8 UNIT #7
UNIT #14 UNIT #13
UNIT #10 UNIT #9
4'-5" 7'-9"
26'-0"

DRIVEWAY
60'-0" 60'-0"
26'-0"
5'-0"

SIDEWALK
4'-5"

FIRE ACCESS ROAD SIGNAGE

AND MARKING SHALL CONFORM
TO APPENDIX D OF THE 2016 CFC
MAILBOXES A1.4
PROPOSED SITE WITH THIRD FLOOR PLAN 1 Scale: 1/8" = 1'-0" M.CLOSET
M.BATH
BATH 2
BEDROOM 1
M.BEDROOM
BEDROOM 2
SEE SHEET A2.0 FOR 1/4"

SCALE UNIT FLOOR PLAN

OF TYPICAL FRONT
DUPLEX UNIT 3
A2.0
SEE SHEET A2.1 FOR 1/4"

SCALE UNIT FLOOR PLAN

OF TYPICAL REAR DUPLEX
UNIT 3
A2.1
SEE SHEET A2.2 FOR 1/4"

SCALE UNIT FLOOR PLAN
OF TRIPLEX 3
A2.2
1/A1.5
2/A1.5
3/A1.5
2/A1.6
1/A1.6
3/A1.6
0 4 8 12 16 20 FT
TRUE
NORTH

PROJECT NORTH
3RD A V E N U E
UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6
UNIT #12 UNIT #11 UNIT #8 UNIT #7
UNIT #14 UNIT #13
UNIT #10 UNIT #9
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 595 of 1462 ends

RETAINING WALL RETAINING WALL

PLANTING AREA

PLANTING AREA
LS
BUFFER
LS
BUFFER

RETAINING WALL
15'-0"

FRONT SETBACK
10'-0" FRONT SETBACK
149.237'
193.95' N7 53' 26"W
N2 00' 06"W 193.15'
4'-5" 4'-5" 4'-5"
3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1"

CONCRETE SIDEWALK

CONCRETE SIDEWALK
2 STORY ADJ. HOUSE

LOW FENCE

VALLEY GUTTER
LS
BUFFER

RETAINING WALL
5'-0"

SIDEWALK
5'-0"
6" CURB

SIDEWALK

VALLEY GUTTER

SIDEWALK
UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6
UNIT #12 UNIT #11 UNIT #8 UNIT #7
UNIT #14 UNIT #13
UNIT #10 UNIT #9
4'-5" 7'-9"
26'-0"

DRIVEWAY
60'-0" 60'-0"
26'-0"
5'-0"

SIDEWALK
4'-5"

FIRE ACCESS ROAD SIGNAGE

AND MARKING SHALL CONFORM
TO APPENDIX D OF THE 2016 CFC

MAILBOXES
PROPOSED SITE WITH ROOF PLAN 1 Scale: 1/8" = 1'-0"

PHOTOVOLTAIC PANELS AT

EACH UNIT
1/A1.5
2/A1.5
3/A1.5
2/A1.6
1/A1.6
3/A1.6
0 4 8 12 16 20 FT
TRUE
NORTH

PROJECT NORTH
1/4" PER FOOT- TYP. 1/4" PER FOOT- TYP.

A1.5
1/4" PER FOOT- TYP. 1/4" PER FOOT- TYP.
1/4" PER FOOT- TYP. 1/4" PER FOOT- TYP.
1/4" PER FOOT- TYP. 1/4" PER FOOT- TYP.
1/4" PER FOOT- TYP. 1/4" PER FOOT- TYP. 1/4" PER FOOT- TYP. 1/4" PER FOOT- TYP. 3RD A V E N U E
1/4" PER FOOT- TYP. 1/4" PER FOOT- TYP.

P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 596 of 1462 ends

1 2
3 1
2 3
1 2
3 1
2 3
129.63
131.37
129.63

PROPERTY LINEPROPERTY LINE
128.65
1 1
4 1
1 1
2 4
1 1
3 4
1 1
4 4
1 1
3 5
1 1
4 5
1 1
5 5
1 SEE 2/- FOR ELEVATION OF REAR UNIT

PROPERTY LINEPROPERTY LINE
A1.6
PROPOSED WEST (FRONT) ELEVATION (FACING 3RD AVENUE) 1 Scale: 1/8" = 1'-0" 0 4 8 12 16 20 FT
PROPOSED WEST ELEVATION (SITE INTERIOR DRIVEWAY) 2 Scale: 1/8" = 1'-0" 0 4 8 12 16 20 FT
PROPOSED SOUTH (SIDE) ELEVATION 3 Scale: 1/8" = 1'-0"
0 4 8 12 16 20 FT

SMOOTH STUCCO

PAINTED HORIZONTAL SIDING

FIBREGLASS WINDOW

BREAK METAL HERE TO MATCH
WINDOWS COLOR, TYP.

SMOOTH STUCCO

BIOSWALE - SEE CIVIL PLANS
3'-0" TALL STAINED WOOD FENCE 34'-0"
35'-0" MAXIMUM ALLOWABLE HEIGHT
1 5
4 1
6 1
4 1
1 7
4 1
1 8
4 1
1 9
4 1
1 0
5 1
1 1
5 1
1 1
2 5
1 PROPERTY LINE

PROPERTY LINE
COLOR #1
COLOR #7
COLOR #3
COLOR #4
COLOR #1
COLOR #1
COLOR #4
COLOR #2
COLOR #6
COLOR #4
COLOR #2
COLOR #2 COLOR #5 COLOR #1
COLOR #4
COLOR #7
COLOR #1
COLOR #4
COLOR #1
COLOR #2
COLOR #7 COLOR #4 COLOR #5
COLOR #4
COLOR #7
COLOR #1
COLOR #3
COLOR #4
COLOR #2
COLOR #5
COLOR #4
COLOR #6
COLOR #1
COLOR #4
COLOR #1
COLOR #4
COLOR #7
COLOR #1
COLOR #3
COLOR #1
COLOR #5 COLOR #4 COLOR #5
COLOR #6
COLOR #4
COLOR #5
COLOR #7
COLOR #1
COLOR #4

CLEARLY VISIBLE ADDRESS

IDENTIFICATION, TYPICAL
COLOR #1
COLOR #3
COLOR #5
COLOR #1
COLOR #4
COLOR #7
COLOR #1 - STUCCO
COLOR #2 - STUCCO
COLOR #3 - STUCCO
COLOR #4 - STUCCO
COLOR #5 - PAINTED LAP SIDING
COLOR #6 - PAINTED LAP SIDING
COLOR #7 - PAINTED LAP SIDING

WINDOW AND DOOR COLORS -
"DARK BRONZE"
white
redwood
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 597 of 1462 ends

A1.7
0 4 8 12 16 20 FT
0 4 8 12 16 20 FT
PROPOSED NORTH (SIDE) ELEVATION 3 Scale: 1/8" = 1'-0"
0 4 8 12 16 20 FT
PROPOSED EAST ELEVATION (SITE INTERIOR DRIVEWAY) 1 Scale: 1/8" = 1'-0" PROPOSED EAST (REAR) ELEVATION 2 Scale: 1/8" = 1'-0"

SMOOTH STUCCO (DARK COLOR)

FIBREGLASS DOORS AND

WINDOWS

BREAK METAL HERE TO MATCH
WINDOWS COLOR, TYP. SMOOTH STUCCO (LIGHT COLOR ) BIOSWALE - SEE CIVIL PLANS 3'-0" TALL STAINED WOOD FENCE

PAINTED HORIZONTAL SIDING
COLOR #1
COLOR #2
COLOR #6
COLOR #1
COLOR #2
COLOR #1
COLOR #3
COLOR #1
COLOR #4
COLOR #1
COLOR #7
COLOR #4
COLOR #1
COLOR #4
COLOR #1
COLOR #4
COLOR #1
COLOR #1
COLOR #4
COLOR #3
COLOR #1
COLOR #1 - STUCCO
COLOR #2 - STUCCO
COLOR #3 - STUCCO
COLOR #4 - STUCCO
COLOR #5 - FIBERCEMENT SIDING,
NICHIHA "CEDAR" OR SIMILAR
COLOR #6 - FIBERCEMENT SIDING,
NICHIHA "ASH" OR SIMILAR
COLOR #7 - FIBERCEMENT SIDING,
NICHIHA "ASH" OR SIMILAR
WINDOW COLOR - "DARK BRONZE"

PROPERTY LINEPROPERTY LINE

PROPERTY LINEPROPERTY LINE
COLOR #4
COLOR #1
COLOR #1
COLOR #3
COLOR #1
COLOR #4
COLOR #7
COLOR #1
COLOR #4
COLOR #6
COLOR #5
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 598 of 1462 ends

A2.0

KITCHEN
DINING

COVERED
PATIO
ISLAND
3'-6"x8'-0"
PANTRY
POWDER
UP
DN
LIVING
OVEN/
MW
REF
DW
±8'-6"

KITCHEN
DINING

COVERED
PATIO
ISLAND
3'-6"x8'-0"
PANTRY
POWDER
UP
DN
LIVING
OVEN/
MW
REF
DW
16 PROPOSED FIRST FLOOR PLAN - DUPLEX FRONT 1 Scale: 1/4" = 1'-0"PROPOSED SECOND FLOOR PLAN - DUPLEX FRONT 2 Scale: 1/4" = 1'-0" M.CLOSET
M.BATH
BATH 2
BEDROOM 1
M.BEDROOM
BEDROOM 2
CLOSET 2
CLOSET 1
W/D
LINEN
W/D
LINEN
EM
10'-7" 4'-7" 5'-0 1/2"
16'-1" 12'-6" 11'-6 1/2"
13'-9" 6'-0 1/2"
13'-9" 6'-1"
9'-10" 10'-0" 10'-11 1/2"
12'-8" 5'-3" 4'-11 1/2"
6'-2 1/2"
4'-3 1/2"
10'-0"
11'-3"
9'-11 1/2"
9'-3"
DN
UP
16 2 CAR GARAGE

EXTERIOR
PORCH
ENTRY

STUDY/ HANG-OUT
BATH 1
2 CAR GARAGE

EXTERIOR
PORCH
ENTRY

STUDY/ HANG-OUT
BATH 1

FURNACE
UP

COAT CLOSET

FURNACE

WET BAR

TANKLESS WH

TANKLESS WH
GM
EM
EM
GM
UP

COAT CLOSET
0 2 4 6 8 10 FT 0 2 4 6 8 10 FT
10'-0"
39'-2 1/2"
9'-10"
11'-2"
4'-5 1/2"
5'-3"
6'-3 1/2"
5'-7"
6'-1 1/2"
5'-1"

WET BAR
2 CAR GARAGE
DINING
BATH

WET BAR
2 CAR GARAGE
DINING
BATH
PROPOSED SECTION 4 Scale: 1/4" = 1'-0"
0 2 4 6 8 10 FT
9'-0" 10'-0" 9'-0"
9'-0" 10'-0" 9'-0"
9'-7"
9'-7"
3 - 3
-
3 - 3
-
3 - 3
-
10'-0"x19'-0"

PARKING
13'-9" 6'-1"

CHASE FOR HVAC

SOFFIT FOR HVAC DUCTWORK TO

SUPPLY SECOND AND THIRD
FLOOR
OPEN
TO
BELOW
DN
M.CLOSET
M.BATH
BATH 2
BEDROOM 1
M.BEDROOM
BEDROOM 2
CLOSET 2
CLOSET 1

SOFFIT FOR HVAC DUCTWORK TO

SUPPLY SECOND AND THIRD
FLOOR
DN
PROPOSED THIRD FLOOR PLAN - DUPLEX FRONT 3 Scale: 1/4" = 1'-0" 0 2 4 6 8 10 FT
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 599 of 1462 ends

DN
9'-0"
W/D
LINEN
W/D
LINEN
OPEN
TO
BELOW
OPEN
TO
BELOW
A2.1
PROPOSED FIRST FLOOR PLAN - DUPLEX REAR 1 Scale: 1/4" = 1'-0"PROPOSED SECOND FLOOR PLAN - DUPLEX REAR 2 Scale: 1/4" = 1'-0"
16 4'-7 1/2" 5'-0 1/2"
16'-0 1/2" 12'-0 1/2" 11'-5 1/2"
13'-9"
13'-9" 6'-1"
6'-0 1/2"
0246 8 10 FT
0 246 8 10 FT

FURNACE

WET BAR

TANKLESS WH

TANKLESS WH
GM GM
DN
UP
16 FURNACE
UP
UP
13'-9" 6'-1"
9'-10" 10'-0" 11'-0"
12'-8" 5'-3" 5'-0"
6'-2"
4'-4"
10'-0"
11'-3"
10'-0"
9'-3"
10'-0"
39'-2 1/2"
9'-10"
11'-2"
4'-9"
5'-3"
6'-3 1/2"
5'-7"
5'-11 1/2"

WET BAR

TANKLESS WH
GM
EM

KITCHEN
DINING

COVERED
PATIO
ISLAND
3'-6"x8'-0"
PANTRY
POWDER
UP
DN
LIVING
OVEN/
MW
REF
DW
2 CAR GARAGE

EXTERIOR
PORCH
ENTRY

STUDY/ HANG-OUT
BATH 1

KITCHEN
DINING

COVERED
PATIO
ISLAND
3'-6"x8'-0"
PANTRY
POWDER
UP
DN
LIVING
OVEN/
MW
REF
DW
M.CLOSET
M.BATH
BATH 2
BEDROOM 1
M.BEDROOM
BEDROOM 2
CLOSET 2
CLOSET 1
2 CAR GARAGE

EXTERIOR
PORCH
ENTRY

STUDY/ HANG-OUT
BATH 1
M.CLOSET
M.BATH
BATH 2
BEDROOM 1
M.BEDROOM
BEDROOM 2
CLOSET 2
CLOSET 1 COAT CLOSET

COAT CLOSET

PROPOSED THIRD FLOOR PLAN - DUPLEX REAR
3 Scale: 1/4" = 1'-0"
0246 8 10 FT
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 600 of 1462 ends

A3.0
9'-0" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
9'-7" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
1 1
4 1
1 1
2 4
1 9'-0" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
8'-0" 8'-0" 8'-0"
9'-0" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
9'-7" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
9'-7" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
8'-0" 8'-0"
UNIT ELEVATIONS - DUPLEX FRONT 1 Scale: 1/4" = 1'-0"
0 2 4 6 8 10 FT
WEST (FRONT) ELEVATION (FACING 3RD AVENUE)

EAST ELEVATION (SITE INTERIOR DRIVEWAY)

NORTH (SIDE) ELEVATION

SOUTH (SIDE) ELEVATION

PAINTED HORIZONTAL
SIDING

FIBREGLASS WINDOW

BREAK METAL HERE TO MATCH
WINDOWS COLOR, TYP.

SMOOTH STUCCO

SOLID PAINT-GRADE

ENTRY DOOR

PROPOSED GAS METER

PROPOSED ELECTRICAL METER

PROPOSED FENCE IN

FOREGROUND

PROPOSED GAS METER

PROPOSED ELECTRICAL METER

PROPOSED FENCE IN

FOREGROUND

FIBREGLASS WINDOWS

AND EXTERIOR DOORS

SMOOTH STUCCO

STEEL POST- PAINTED

STEEL POST- PAINTED
2X3 WOOD POSTS FOR

PRIVACY SCREENING

DOWNSPOUT- PAINTED TO
MATCH WALL COLOR, TYP.

EXTERIOR LIGHT

FIXTURE
8'-0"X8'-0" PAINTED ROLL-UP
GARAGE DOORS SET BACK 2'-0"

FROM EXTERIOR WALL
7'-0"

RECESSED TANKLESS

WATER HEATER
7'-6"

RECESSED TANKLESS

WATER HEATER
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 601 of 1462 ends

1 1
5 1
1 1
2 5
1 UNIT ELEVATIONS - DUPLEX REAR 1 Scale: 1/4" = 1'-0"
0 2 4 6 8 10 FT
A3.1

WEST (FRONT) ELEVATION (FACING SITE INTERIOR DRIVEWAY)
9'-0" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
9'-7" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
9'-0" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
8'-0" 8'-0" 8'-0"
9'-7" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
8'-0" 8'-0"

EAST ELEVATION (SITE INTERIOR DRIVEWAY)

NORTH (SIDE) ELEVATION

SOUTH (SIDE) ELEVATION

STEEL POST- PAINTED
2X3 WOOD POSTS FOR

PRIVACY SCREENING

DOWNSPOUT- PAINTED TO
MATCH WALL COLOR, TYP. 8'-0"X8'-0" PAINTED ROLL-UP
GARAGE DOORS SET BACK 2'-0"

FROM EXTERIOR WALL
7'-0"

RECESSED TANKLESS

WATER HEATER

PROPOSED GAS METER

PROPOSED ELECTRICAL METER

PROPOSED FENCE IN

FOREGROUND

RECESSED TANKLESS

WATER HEATER

FIBREGLASS WINDOWS

AND EXTERIOR DOORS

SMOOTH STUCCO

STEEL POST- PAINTED

SMOOTH STUCCO

PAINTED HORIZONTAL
SIDING

FIBREGLASS WINDOW

BREAK METAL HERE TO MATCH
WINDOWS COLOR, TYP.

SOLID PAINT-GRADE

ENTRY DOOR

PROPOSED GAS METER

PROPOSED ELECTRICAL METER

PROPOSED FENCE IN

FOREGROUND

EXTERIOR LIGHT

FIXTURE
9'-0" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
9'-7" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 602 of 1462 ends

PHOTOGRAPHS OF ADJACENT PROPERTIES ON 3RD AVENUE
141 3RD AVENUE- PROJECT SITE

PHOTOGRAPHS FROM PROJECT SITE LOOKING SOUTH

PHOTOGRAPHS FROM PROJECT SITE LOOKING NORTH
A4.0
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 603 of 1462 ends

A2.0

KITCHEN
DINING

COVERED
PATIO
ISLAND
3'-6"x8'-0"
PANTRY
POWDER
UP
DN
LIVING
OVEN/
MW
REF
DW
±8'-6"

KITCHEN
DINING

EXTERIOR
PORCH
ENTRY

STUDY/ HANG-OUT
BATH 1
2 CAR GARAGE

EXTERIOR
PORCH
ENTRY

STUDY/ HANG-OUT
BATH 1

FURNACE
UP

COAT CLOSET

FURNACE

WET BAR

TANKLESS WH

TANKLESS WH
GM
EM
EM
GM
UP

COAT CLOSET
0 2 4 6 8 10 FT 0 2 4 6 8 10 FT

WET BAR
2 CAR GARAGE
DINING
BATH

WET BAR
2 CAR GARAGE
DINING
BATH
PROPOSED SECTION 4 Scale: 1/4" = 1'-0"
0 2 4 6 8 10 FT
3 - 3
-
3 - 3
-
3 - 3
-
10'-0"x19'-0"

PARKING

CHASE FOR HVAC

SOFFIT FOR HVAC DUCTWORK TO

SUPPLY SECOND AND THIRD
FLOOR
OPEN
TO
BELOW
DN
M.CLOSET
M.BATH
BATH 2
BEDROOM 1
M.BEDROOM
BEDROOM 2
CLOSET 2
CLOSET 1

SOFFIT FOR HVAC DUCTWORK TO

SUPPLY SECOND AND THIRD
FLOOR
DN
PROPOSED THIRD FLOOR PLAN - DUPLEX FRONT 3 Scale: 1/4" = 1'-0" 0 2 4 6 8 10 FT
s
D
s
D
s
3 s
D
VS s
ss
s
VS sMS
s s
VS
sD
s
MS
s
s
VS
s
3 VSs
GFI 18" ABOVE
FINISH
GFI 18" ABOVE
FINISH
GFI 18" ABOVE
FINISH
GFI 18" ABOVE
FINISH
GFI 18" ABOVE
FINISH
AFCI o
AFCI o
oAFCI
oAFCI
oAFCI
AFCI o
AFCI o
oWP/GFI
GFI
o
GFI
o
AFCI
o
AFCI
o
AFCIo
AFCI
o
AFCIo
AFCI
o
AFCI
o AFCI o
AFCI
o
AFCI
o
AFCI
o
AFCI o
AFCI
o
AFCI
o
s
D GFI
o
GFI
o
GFI
o
GFI
o
s
VS s s s
ss
VS
s
VS
s VS
s
VS
sD
s
D
s
D
s
D
AFCI
o
AFCI
o
AFCIo
AFCI
o
AFCIo
AFCI
o
AFCI
o AFCI o
AFCI
o
AFCI
o
AFCI
o
AFCI o
AFCI
o
AFCI
o
s
D GFI
o
GFI
o
GFI
o
GFI
o
s
VS s s s
ss
VS
s
VS
s VS
s
VS
sD
s
D
s
D
s
D
s
VS
AFCI
o
AFCI
o
AFCI
o
oAFCI
AFCI
o
GFI
o
GFI
o
GFI
o
o
GFI
o
GFI
GFI
o
GFI
o
GFIo
GFI
o
ss
3 s VSs s s VS s s D D
sD
sD
s
AFCI
o
s
GFI o A6.0
P A G E N U M B E R :

R E V I S I O N S:

S T A M P :

Page 604 of 1462 ends

Page 605 of 1462 ends

CUBIC YARDS WITHIN BUILDING

FOOTPRINT

OUTSIDE

BUILDING

FOOTPRINT

TOTAL CUBIC
YARDS
CUT 900
FILL 1,440
IMPORT 540

Page 606 of 1462 ends

Page 607 of 1462 ends

Page 608 of 1462 ends

JT JT JT JT JT JT JT JT JT JT JT JT
JT
JT
JT
JT

JT JT JT JT JT JT JT
JT
JT
JT JT
JT JT
JT
JT JT
JT
JT
JT
JT JT
JT

JT JT JT JT
JT
JT JT
JT JT
JT
JT JT
JT

Page 609 of 1462 ends

DATUM ELEV
110.00

DATUM ELEV
112.00

Page 610 of 1462 ends

IMPERVIOUS AREA

EXISTING
TOTAL S.F.
0 +20,439 SQUARE FEET (NET INCREASE)

FLOOR AREA

PERVIOUS CONCRETE DRIVEWAY

NET CHANGE IN DEVELOPED AREA

PROPOSED
TOTAL S.F.

REFER TO THE ARCHITECTURAL PLANS FOR

PROPOSED FLOOR AREA CALCULATIONS
TOTAL SITE AREA 31,140 SQUARE FEET (0.715 ACRE)
TOTAL DISTURBED AREA 31,140 SQUARE FEET (0.715 ACRE)

REMOVED NEW
TOTAL S.F. TOTAL S.F.

DRIVEWAY & PARKING
PATIO, WALKWAY, PADS, ETC.

RESIDENCE ROOF*
190
970
540
0 190
970
540
*HARDSCAPE AREAS BELOW THE RESIDENCE ROOF OVERHANG ARE INCLUDED IN THE RESIDENCE ROOF AREA 504
11,656
3,896
6,083
504
11,656
3,896
6,083
1,700
+14,356 SQUARE FEET (NET INCREASE)

TOTAL IMPERVIOUS AREA

NET CHANGE IN IMPERVIOUS AREA
1,700 16,056 16,056

PERVIOUS PAVING
0 +6,083 SQUARE FEET (NET INCREASE)

TOTAL PERVIOUS PAVING AREA

NET CHANGE IN PERVIOUS PAVING AREA
0 6,083 6,083
TOTAL DEVELOPED AREA 1,700 1,700 22,139 22,139

Page 611 of 1462 ends

Page 612 of 1462 ends

JT JT JT
JT
JT
JT JT
JT

Page 613 of 1462 ends

Xref 20-030_Layers_LB 09-12-22.dwg GOOD NEIGHBOR FENCES & GATES -6' HIGH -SEE SHEET L1.1 STREETSCAPE FENCE -3' HIGH -SEE SHEET L1.1 STREET TREES -CHINESE PISTACHE -6 24" BOX STREETSCAPE PLANTING -SEE SHEET L1.1 PRIVATE LANDSCAPE SMALL ACCENT TREE BIO-RETENTION PLANTING MAILBOXES -SEE SHEET L1.1 10 9 8 7 11 13 12 141 2 3 4 5 6 ACCENT SHRUBS VINES TRANSFORMER BIO-RETENTION PLANTING -SEE SHEET L1.1 NORTH 5'0' 10' 20' DATE REVISIONS: NO. Landscape Architects, Inc. Petaluma, California 94952 145 Keller Street (707) 696-2967 [email protected] SHEET TITLE: SHEET NO: PROJECT NO: ISSUED: 12-14-2022 DAL 20 3212 MISSION DRIVE 141 THIRD AVENUE

DALY CITY, CALIFORNIA
APN# 006-254-020
APN# 006-254-030 L1.0

LANDSCAPE PLAN

Page 614 of 1462 ends

DATE REVISIONS: NO. Landscape Architects, Inc. Petaluma, California 94952 145 Keller Street (707) 696-2967 [email protected] SHEET TITLE: SHEET NO: PROJECT NO: ISSUED: 12-14-2022 DAL 20 3212 MISSION DRIVE 141 THIRD AVENUE

DALY CITY, CALIFORNIA
APN# 006-254-020
APN# 006-254-030 L1.1

LANDSCAPE MATERIALS
& PRECEDENT IMAGES

Page 615 of 1462 ends

DALY CITY, CALIFORNIA
APN# 006-254-020
APN# 006-254-030 L1.2

PLANT LEGEND

Page 616 of 1462 ends

DALY CITY, CALIFORNIA NEW BUSINESS 141 3RD AVENUE
JOINT TRENCH TITLE SHEET N.T.S. JT-1
1 N SCALE: PM: PG&E QUALIFIED DESIGNER: DRAWN BY: PROJ. NO: SHEET: OF:

CALIFORNIA LAST UPDATED: DRAWING NO:

REVISION DELTA NO: DATE:

P A R T N E R S
7901 STONERIDGE DRIVE, Suite 200 | PLEASANTON, CA 94588 Tel (925) 682-1114

UTILITY ENGINEERS, CONSULTANTS & STREETLIGHT DESIGN

NEW BUSINESS
3 E. SMITH K. ARATA 20-030

DALY CITY

CLARUM HOMES
141 3RD AVENUE 12-02-2022 DATE OF SIGNATURE -----

Page 617 of 1462 ends

’
···················· JOINT TRENCH NOTES & DETAILS N.T.S. JT-2 2 SCALE: PM: PG&E QUALIFIED DESIGNER: DRAWN BY: PROJ. NO: SHEET: OF:

CALIFORNIA LAST UPDATED: DRAWING NO:

REVISION DELTA NO: DATE:

P A R T N E R S
7901 STONERIDGE DRIVE, Suite 200 | PLEASANTON, CA 94588 Tel (925) 682-1114

UTILITY ENGINEERS, CONSULTANTS & STREETLIGHT DESIGN

NEW BUSINESS
3 E. SMITH K. ARATA 20-030

DALY CITY

CLARUM HOMES
141 3RD AVENUE 12-02-2022 DATE OF SIGNATURE -----

Page 618 of 1462 ends

UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6 UNIT #12 UNIT #11 UNIT #8 UNIT #7 UNIT #14 UNIT #13 UNIT #10 UNIT #9 JOINT TRENCH INTENT 1" = 10' JT-3
3 N SCALE: PM: PG&E QUALIFIED DESIGNER: DRAWN BY: PROJ. NO: SHEET: OF:

CALIFORNIA LAST UPDATED: DRAWING NO:

REVISION DELTA NO: DATE:

P A R T N E R S
7901 STONERIDGE DRIVE, Suite 200 | PLEASANTON, CA 94588 Tel (925) 682-1114

UTILITY ENGINEERS, CONSULTANTS & STREETLIGHT DESIGN

NEW BUSINESS
3 E. SMITH K. ARATA 20-030

DALY CITY

CLARUM HOMES
141 3RD AVENUE 12-02-2022 DATE OF SIGNATURE -----

Page 619 of 1462 ends

Prepared by
In Consultation with
January 2023
Initial Study
141 3rd Avenue Residential Project

Page 620 of 1462 ends

Planning Division
333 90th Street, Daly City, CA 94015
Tel: 650-991-8033

MITIGATED NEGATIVE DECLARATION
I. DESCRIPTION OF PROJECT:

Date: January 20, 2023
File Nos. GPA-8-20-14643, ZC-8-20-14633, SUB-8-20-15634, UPR-8-20-14642, DR-8- 20-14636
APN: 006-254-030 and 006-254-020
Project Title: 141 3rd Avenue Residential Project
Project Location: The approximately 0.71-acre site is located at 141 3rd Avenue in the City of Daly City.

Project Applicants: Clarum Homes, 412 Olive Avenue, Palo Alto, CA 94306 Project Description: The project proposes a General Plan amendment to Residential – Medium Density (R-MD) to allow for a rezoning of the project site to R-3, Multiple-Family Residential. The project would construct 14 new three-story townhomes, each with a two-car tandem garage. The project would include a 120-foot internal access road, associated private driveways, landscaping, and utility improvements.

II. DETERMINATION
In accordance with the City of Daly City procedures for compliance with the California Environmental Quality Act (CEQA), the City has completed an Initial Study to determine whether the proposed project may have a significant adverse effect on the environment.

On the basis of that study, the City makes the following determination:
 Although the project, as proposed, could have had a significant effect on the environment, there will not be a significant effect in this case because mitigation measures are included in the project which will reduce all

Page 621 of 1462 ends

Planning Division
333 90th Street, Daly City, CA 94015
Tel: 650-991-8033
identified potential impacts to less than significant levels, and, therefore, this MITIGATED NEGATIVE DECLARATION (MND) has been prepared.

III. CONDITIONS (Mitigation Measures):

A. Air Quality:

MM AIR-3.1: During any construction period ground disturbance, the applicant shall ensure that the project contractor implements measures to control dust and exhaust.

Implementation of the measures recommended by BAAQMD and listed below would reduce the air quality impacts associated with grading and new construction to a lessthan-significant level. Additional measures are identified to reduce construction equipment exhaust emissions. The contractor shall implement the following best management practices that are required of all projects:
• All exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, and unpaved access roads) shall be watered two times per day. • All haul trucks transporting soil, sand, or other loose material off-site shall be covered.
• All visible mud or dirt track-out onto adjacent public roads shall be removed using wet power vacuum street sweepers at least once per day. The use of dry power sweeping is prohibited.
• All vehicle speeds on unpaved roads shall be limited to 15 miles per hour (mph). • All roadways, driveways, and sidewalks to be paved shall be completed as soon as possible. Building pads shall be laid as soon as possible after grading unless seeding or soil binders are used.
• Idling times shall be minimized either by shutting equipment off when not in use or reducing the maximum idling time to five minutes (as required by the California airborne toxics control measure Title 13, Section 2485 of California Code of Regulations [CCR]). Clear signage shall be provided for construction workers at all access points.
• All construction equipment shall be maintained and properly tuned in accordance with manufacturer’s specifications. All equipment shall be checked by a certified mechanic and determined to be running in proper condition prior to operation. • Post a publicly visible sign with the telephone number and person to contact at the Lead Agency regarding dust complaints. This person shall respond and take corrective action within 48 hours. The Air District’s phone number shall also be visible to ensure compliance with applicable regulations.

MM AIR-3.2: All construction equipment larger than 25 horsepower used at the site for more than two continuous days or 20 hours total shall meet U.S. EPA Tier 4 emission standards for particulate matter (PM10 and PM2.5). If use of Tier 4 equipment is not

Page 622 of 1462 ends

Planning Division
333 90th Street, Daly City, CA 94015
Tel: 650-991-8033
available, alternatively use equipment that meets U.S. EPA emission standards for Tier 3 engines and include particulate matter emissions control equivalent to CARB Level 3 verifiable diesel emission control devices that altogether achieve a 67 percent reduction in particulate matter exhaust in comparison to uncontrolled equipment; alternatively (or in combination). As another alternative, the use of electrical or non-diesel fueled equipment may be used in substitution of diesel equipment.

B. Biological Resources:

MM BIO-1.1: Pre-construction nesting bird surveys shall be completed prior to tree removal if removal or construction is proposed to commence during the breeding season (February 1 to August 31) in order to avoid impacts to nesting birds. Surveys shall be completed by a qualified biologist no more than 14 days before construction begins. During this survey, the biologist or ornithologist shall inspect all trees and other possible nesting habitats in and within 250 feet of the project boundary.

If an active nest is found in an area that would be disturbed by construction, the ornithologist shall designate an adequate buffer zone (~250 feet) to be established around the nest, in consultation with the California Department of Fish and Wildlife (CDFW). The buffer would ensure that nests shall not be disturbed until the young have fledged (left the nest), the nest is vacated, and there is no evidence of second nesting attempts.

The applicant shall submit a report indicating the results of the survey and any designated buffer zones to the satisfaction of the Director of Community Development, prior to the removal of trees and issuance of a grading permit or demolition permit.

C. Cultural Resources:

MM CUL-2.1: If evidence of an archaeological site or other suspected cultural resource as defined by CEQA Guideline Section 15064.5, including darkened soil representing past human activity (“midden”), that could conceal material remains (e.g., worked stone, worked bone, fired clay vessels, faunal bone, hearths, storage pits, or burials) is discovered during construction related earth-moving activities, all ground-disturbing activity within 100 feet of the resources shall be halted and the City’s Planning Manager shall be notified. The project sponsor shall hire a qualified archaeologist to conduct a field investigation. The City’s Planning Manager shall consult with the archaeologist to assess the significance of the find. Impacts to any significant resources shall be mitigated to a less-than-significant level through data recovery or other methods determined adequate by a qualified archaeologist and that are consistent with the Secretary of the Interior’s Standards for Archaeological documentation. Any identified

Page 623 of 1462 ends

Planning Division
333 90th Street, Daly City, CA 94015
Tel: 650-991-8033
cultural resources shall be recorded on the appropriate DPR 523 (A-J) form and filed with the NWIC.

MM CUL-2.2: If archaeological resources are identified, a final report summarizing the discovery of cultural materials shall be submitted to the City’s Planning Manager prior to issuance of certificate of occupancy. This report shall contain a description of the mitigation program that was implemented and its results, including a description of the monitoring and testing program, a list of the resources found and conclusion, and a description of the disposition/curation of the resources.

MM CUL-3.1: If human remains are discovered during project construction, all grounddisturbing activity within 100 feet of the resources shall be halted and the City’s Planning Manager and the San Mateo County coroner shall be notified immediately, according to Section 5097.98 of the State Public Resources Code and Section 7050.5 of California’s Health and Safety Code. If the remains are determined by the County coroner to be Native American, the Native American Heritage Commission (NAHC) shall be notified within 24 hours, and the guidelines of the NAHC shall be adhered to in the treatment and disposition of the remains. The project sponsor shall also retain a professional archaeologist with Native American burial experience to conduct a field investigation of the specific site and consult with the Most Likely Descendant, if any, identified by the NAHC. As necessary, the archaeologist may provide professional assistance to the Most Likely Descendant, including the excavation and removal of the human remains. The City of Daly City shall be responsible for approval of recommended mitigation as it deems appropriate, taking account of the provisions of State law, as set forth in CEQA Guidelines section 15064.5(e) and Public Resources Code section 5097.98. The project sponsor shall implement approved mitigation, to be verified by the City of Daly City, before the resumption of ground-disturbing activities within 100 feet of where the remains were discovered.

D. Geology and Soils:

MM GEO-6.1: Should a unique paleontological resource or site or unique geological feature be identified at the project site during any phase of construction, all ground disturbing activities within 25 feet shall cease and the City’s Planning Manager notified immediately. A qualified paleontologist shall evaluate the find and prescribe mitigation measures to reduce impacts to a less than significant level. Work may proceed on other parts of the project site while mitigation for paleontological resources or geologic features is implemented. Upon completion of the paleontological assessment, a report shall be submitted to the City and, if paleontological materials are recovered, a paleontological repository, such as the University of California Museum of Paleontology.

Page 624 of 1462 ends

Planning Division
333 90th Street, Daly City, CA 94015
Tel: 650-991-8033
E. Hazards and Hazardous Materials:

MM HAZ-2.1: Prepare a site management plan for review and approval by the San Mateo County Environmental Health Services Division (SMCEHSD). Proof of approval or actions for site work required by the SMCEHSD must be provided to the Director of Community Development prior to the issuance of any demolition or building permits.

F. Noise:

MM NOI-1.1: The applicant shall incorporate the following practices into the construction documents to be implemented by the project contractor:
• Construction activities shall be limited to the hours between 8:00 am and 5:00 pm, Monday through Friday, and prohibited on weekends and holidays in accordance with the City’s General Plan, unless permission is granted with a development permit or other planning approval.
• Equip all internal combustion engine-driven equipment with intake and exhaust mufflers that are in good condition and appropriate for the equipment. • Unnecessary idling of internal combustion engines should be strictly prohibited. • Locate stationary noise-generating equipment, such as air compressors or portable power generators, as far as possible from nearby receptors. If they must be located near receptors, adequate muffling (with enclosures where feasible and appropriate) shall be used reduce noise levels at nearby receptors. Any enclosure openings or venting shall face away from receptors. • Utilize "quiet" air compressors and other stationary noise sources where technology exists.
• A temporary noise control blanket barrier could be erected, if necessary, along building facades facing construction sites. This measure would only be necessary if conflicts occurred which were irresolvable by proper scheduling.

Noise control blanket barriers can be rented and quickly erected. • Control noise from construction workers’ radios to a point where they are not audible at existing structures bordering the project site. • The contractor shall prepare a detailed construction plan identifying the schedule for major noise-generating construction activities. The construction plan shall identify a procedure for coordination with adjacent land uses so that construction activities can be scheduled to minimize noise disturbance. • Neighbors located adjacent to the construction site shall be notified of the construction schedule in writing.
• Designate a “disturbance coordinator” who would be responsible for responding to any complaints about construction noise. The disturbance coordinator will determine the cause of the noise complaint (e.g., bad muffler, etc.) and will

Page 625 of 1462 ends

Page 626 of 1462 ends

141 3rd Avenue Residential i Initial Study
City of Daly City January 2023

TABLE OF CONTENTS
Section 1.0 Introduction and Purpose ................................................................................................ 1 Purpose of the Initial Study .................................................................................................... 1 Public Review Period ............................................................................................................. 1 Consideration of the Initial Study and Project ........................................................................ 1 Notice of Determination ......................................................................................................... 1 Section 2.0 Project Information ......................................................................................................... 2 Project Title ............................................................................................................................ 2 Lead Agency Contact ............................................................................................................. 2 Project Applicant .................................................................................................................... 2 Project Location...................................................................................................................... 2 Assessor’s Parcel Number...................................................................................................... 2 General Plan Designation and Zoning District ....................................................................... 2 Section 3.0 Project Description .......................................................................................................... 6 Project Overview and Location .............................................................................................. 6 Project Components ................................................................................................................ 6 Uses of the Initial Study/Mitigated Negative Declaration .................................................... 11 Section 4.0 Environmental Setting, Checklist, and Impact Discussion ........................................... 12 Aesthetics .............................................................................................................................. 13 Agriculture and Forestry Resources ..................................................................................... 19 Air Quality ............................................................................................................................ 22 Biological Resources ............................................................................................................ 34 Cultural Resources ................................................................................................................ 40 Energy ................................................................................................................................... 46 Geology and Soils ................................................................................................................. 51 Greenhouse Gas Emissions ................................................................................................... 57 Hazards and Hazardous Materials ........................................................................................ 63 Hydrology and Water Quality .............................................................................................. 72 Land Use and Planning ......................................................................................................... 79 Mineral Resources ................................................................................................................ 83 Noise ..................................................................................................................................... 85 Population and Housing ........................................................................................................ 91 Public Services ..................................................................................................................... 94 Recreation ............................................................................................................................. 99

Page 627 of 1462 ends

141 3rd Avenue Residential ii Initial Study
City of Daly City January 2023
Transportation.....................................................................................................................102 Tribal Cultural Resources...................................................................................................107 Utilities and Service Systems .............................................................................................109 Wildfire...............................................................................................................................116 Mandatory Findings of Significance ..................................................................................117 Section 5.0 References...................................................................................................................121 Section 6.0 Lead Agency and Consultants.....................................................................................126 Lead Agency.......................................................................................................................126 Consultants .........................................................................................................................126 Section 7.0 Acronyms and Abbreviations......................................................................................127

Page 628 of 1462 ends

141 3rd Avenue Residential iii Initial Study
City of Daly City January 2023

TABLE OF CONTENTS
Figures
Figure 2.6-1: Regional Map ................................................................................................................... 3 Figure 2.6-2: Vicinity Map .................................................................................................................... 4 Figure 2.6-3: Aerial Map ....................................................................................................................... 5 Figure 3.2-1: Site Plan ........................................................................................................................... 7 Figure 3.2-2: North and East Elevations ................................................................................................ 8 Figure 3.2-3: South and West Elevations ............................................................................................... 9 Figure 4.3-1: Locations of Sensitive Receptors and MEI .................................................................... 30 Tables
Table 4.3-1: Health Effects of Air Pollutants ...................................................................................... 22 Table 4.3-2: BAAQMD Air Quality Significance Thresholds ............................................................ 27 Table 4.3-3: Construction Risk Impacts .............................................................................................. 28 Table 4.3-4: Cumulative Community Health Risks Impacts ............................................................... 31 Table 4.3-5: Community Risk Impacts Upon the On-site Sensitive Receptors ................................... 32 Table 4.11-1: R-3 Zoning Requirements ............................................................................................. 82 Table 4.13-1: Groundborne Vibration Impact Criteria ........................................................................ 86 Appendices
Appendix A: Construction Community Risk Assessment
Appendix B: Historic Resources Evaluation
Appendix C: Phase I Environmental Site Assessment
Appendix D: Phase II Subsurface Investigation
Appendix E: VMT Analysis
Appendix F: Hydraulic Analysis
Appendix G: Sanitary Sewer Capacity Evaluation

Page 629 of 1462 ends

141 3rd Avenue Residential 1 Initial Study
City of Daly City January 2023
SECTION 1.0 INTRODUCTION AND PURPOSE

PURPOSE OF THE INITIAL STUDY
The City of Daly City, as the Lead Agency, has prepared this Initial Study for the 141 3rd Avenue Residential Project in compliance with the California Environmental Quality Act (CEQA), the CEQA Guidelines (California Code of Regulations §15000 et. seq.) and the regulations and policies of the City of Daly City, California.

The project proposes a General Plan amendment and rezoning to allow the construction of 14 new townhomes at 141 3rd Avenue, Daly City. This Initial Study evaluates the environmental impacts that might reasonably be anticipated to result from implementation of the proposed project.

PUBLIC REVIEW PERIOD
Publication of this Initial Study marks the beginning of a 20-day public review and comment period.

During this period, the Initial Study will be available to local, state, and federal agencies and to interested organizations and individuals for review. Written comments concerning the environmental review contained in this Initial Study during the 20-day public review period should be sent to:

Michael Van Lonkhuysen
Planning Manager
Planning Division
333 90th Street
Daly City, CA 94015

CONSIDERATION OF THE INITIAL STUDY AND PROJECT
Following the conclusion of the public review period, the City of Daly City will consider the adoption of the Initial Study/Mitigated Negative Declaration (MND) for the project at a regularly scheduled meeting. The City shall consider the Initial Study/MND together with any comments received during the public review process. Upon adoption of the MND, the City may proceed with project approval actions.

NOTICE OF DETERMINATION
If the project is approved, the City will file a Notice of Determination (NOD), which will be available for public inspection and posted within 24 hours of receipt at the County Clerk’s Office for 30 days. The filing of the NOD starts a 30-day statute of limitations on court challenges to the approval under CEQA (CEQA Guidelines Section 15075(g)).

Page 630 of 1462 ends

141 3rd Avenue Residential 2 Initial Study
City of Daly City January 2023
SECTION 2.0 PROJECT INFORMATION

PROJECT TITLE
141 3rd Avenue Residential (File Nos. GPA-8-20-14643, ZC-8-20-14633, SUB-8-20-15634, UPR-8- 20-14642, DR-8-20-14636)

LEAD AGENCY CONTACT
Michael Van Lonkhuysen
Planning Manager
Planning Division
333 90th Street
Daly City, CA 94015

PROJECT APPLICANT
Clarum Homes
412 Olive Avenue
Palo Alto, CA 94306

PROJECT LOCATION
The approximately 0.71-acre site is located at 141 3rd Avenue (Accessor Parcel Numbers 006-254- 030 and 006-254-020). A regional map and vicinity map of the project site are shown in Figure 2.6-1 and Figure 2.6-2. An aerial photograph with surrounding land uses is shown on Figure 2.6-3.

ASSESSOR’S PARCEL NUMBERS
006-254-030 and 006-254-020

GENERAL PLAN DESIGNATION AND ZONING DISTRICT
The project site has a General Plan land use designation of Residential – Low Density (R-LD) and is zoned I-D Interim District.

Page 631 of 1462 ends

San Francisco County
San Mateo County
Geary Boulevard
Great Highway
Hillside Boulevard
Sister Cities Boulevard
Geneva Avenue
Ocean Avenue
Monterey Bouelvard
Portol a
Drive
Lincoln Way
Fell Street
Van Ness Avenue
Guerrero Street
Dolores Street
Mission Street
Sharp Park Rd.

Chestnut Ave
1 1
1 1
35 82
82 35
35 101
101
80 280
280
280
380
Pacific
Ocean
Project Site
San Fancisco
Daly City
South San
Francisco
Pacifica
San Bruno
REGIONAL MAP FIGURE 2.6-1
Pacific
Ocean
San José
Sunnyvale
Fremont San Mateo
Redwood City
Oakland
San Francisco
Mountain View
Project Site
San Francisco Bay
0 .5 1 3 Miles

Page 632 of 1462 ends

2nd Avenue
3rd Avenue
1st Avenue
San Pedro Road
East Market Street
Mission Street
Mission Street
Hillside Boulevard
Hillside Boulevard
Price Street
East Moltke Street
Vale Street
School Street
West Cavour Street
Wyandotte Avenue
Florence Street
Chester Street
A Street
Abbot Avenue
Florence Street
Sylvan Street
Valley Street
Franciscan Drive
Orange Street
Abbott Avenue
Castle Street
Teresa Street
Jun pi e or Serra Bouleva
dr
Sullivan Avenue
Station Avenue
Mateo Avenue
Reiner Street
H
arb
or Drive
280
280
VICINITY MAP FIGURE 2.6-2
Base Map: ESRI, ArcGIS
0 150 600 900 1,500 Feet
Project Site

Page 633 of 1462 ends

Residential
Residential
Residential
Commercial
Residential
Residential
1st Avenue
2nd Avenue
3rd Avenue
Hillside Boulevard
East Market Street
Castle Street
Teresa Street
Wyandotte Avenue
Habitat Way
Abbot Avenue
AERIAL PHOTOGRAPH AND SURROUNDING LAND USES FIGURE 2.6-3 Aerial Source: Google Earth Pro, Nov. 30, 2020. Photo Date: Mar. 2018 0 25 150 200 300 Feet
Project Boundary

Page 634 of 1462 ends

141 3rd Avenue Residential 6 Initial Study
City of Daly City January 2023
SECTION 3.0 PROJECT DESCRIPTION

PROJECT OVERVIEW AND LOCATION
The approximately 0.71-acre site is located at 141 3rd Avenue (Accessor Parcel Numbers 006-254- 030 and 006-254-020) in the City of Daly City. The project site has a General Plan land use designation of Residential – Low Density (R-LD) and is zoned I-D Interim District. The project site is bounded by 3rd Avenue to the west, single family homes to the north and east, and townhouses to the south.

The project proposes a General Plan amendment to Residential – Medium Density (R-MD) to allow for a rezoning of the project site to R-3, Multiple-Family Residential. The project would construct 14 new three-story townhomes, each with a two-car tandem garage. The project would include a 120- foot internal access road, associated private driveways, landscaping, and utility improvements. The project components, including the townhomes, landscaping, site access and parking, and construction details are described below. A conceptual site plan and conceptual elevations are shown in Figure

3.2-1, Figure 3.2-2, and Figure 3.2-3, respectively.

PROJECT COMPONENTS

3.2.1 General Plan Amendment and Rezoning
The project site has a General Plan land use designation of Residential (R-LD) and is zoned I-D Interim District. In order to develop the proposed project on the 0.71-acre site, the project proposes to amend the General Plan land use designation to Residential – Medium Density (R-MD) and rezone the site to R-3, Multiple-Family Residential. Rezoning would allow the project to develop multifamily housing without a use permit.

3.2.2 Townhomes
The project would construct 14 new three-story townhomes. Each townhome would be approximately 2,055 square feet and would include a two-car tandem garage. Each unit would also include a minimum of 150 square feet of open space. Units directly adjacent to 3rd Avenue would include private front and rear yards, while units set back from 3rd Avenue would only have private rear yards. Each unit would also include a second-story covered patio. All units would contain three bedrooms. The townhomes would have a minimum setback of 15-feet from the western property line on 3rd Avenue and a minimum setback of ten-feet from the eastern property line. The townhomes along the 3rd Avenue frontage would have a 4.5-foot setback from the north property line and an approximately eight-foot setback from the south property line. The rear townhomes would have a three-foot setback from both the north and south property lines. The townhomes would reach a maximum height of 35 feet above ground level.

Page 635 of 1462 ends

RETAINING WALL RETAINING WALL
PLAN A
P EA
LS
BUFFER
LS
BUFFER

RETAINING WALL
15'-0"

FRONT SETBACK
10'-0"

FRONT SETBACK PERVIOUS ASPHALT

DRIVEWAY
149.237'
193.95' N7 53' 26"W
N2 00' 06"W 193.15'
4'-5" 4'-5" 4'-5"
3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1" 3'-1"

CONCRETE SIDEWALK

FIRE HYDRANT PER CITY

STANDARD
2 STORY ADJ. HOUSE
2 STORY HOUSE

LOW FENCE

LOW FENCE
EA
A
E

VALLEY GUTTER
LS
BUFFER
AC
EM
GM
EM
GM
AC
EM
GM
AC
GM
AC
EM
EM
GM
AC
EM
GM
AC
GM
EM
AC
AC
GM EM
GM
EM
GM
GM
EM
EM
GM
GM
EM
EM
GM
EM
AC
AC
AC
AC
AC
AC
T

RETAINING WALL
6" CURB
5'-0"

SIDEWALK
5'-0"
6" CURB

SIDEWALK

VALLEY GUTTER

SIDEWALK
171' HOSE LAY AROUND THE BUILDINGTO

THE FURTHEST PART OF THE BUILDINGS
UNIT #1 UNIT #2 UNIT #3 UNIT #4 UNIT #5 UNIT #6
UNIT #12 UNIT #11 UNIT #8 UNIT #7
UNIT #14 UNIT #13
UNIT #10 UNIT #9
4'-5" 7'-9"
26'-0"

DRIVEWAY
60'-0" 60'-0"
26'-0"
5'-0"
SIDEWALK 4'-5"
PLAN A

CONDRETE
DRIVEWAYS, TYP.

PROPOSED BIO-TREATMENT AREA
- SEE CIVIL PLANS

CONCRETE SIDEWALK

CONCRETE CURB & GUTTER

PLANTER STRIP
3RD A V E N U E
3 STORY ADJ. HOUSES
171.17' PRIVATE REAR
YARDS

PRIVATE REAR YARD
2 STORY HOUSE
W
D
6'-0"TALL FENCE
( SHOWN HATCHED - TYP.)

TRASH/ RECYCLE PICK-UP

LOCATION (DASHED)

TRASH/ RECYCLE

PRIVATE REAR
YARD
2 STORY HOUSE

TALL FENCE ALONG REAR PROPERTY LINE

ELECTRICAL TRANSFORMER &

PROTECTIVE BOLLARDS
6" CURB
5'-0"
6"CURB
5'-0"
5'-0"
5'-0"

WIDEN EXISTING
SIDEWALK TO 5'-0"
13'-2 3/4"
7'-7 7/8"
13'-2 3/4"
8'-0"

SEE LANDSCAPE PLAN FOR PROPOSED
TREES AND LANDSCAPING ALONG 3RD
AVENUE

FIRE ACCESS ROAD SIGNAGE

AND MARKING SHALL CONFORM
TO APPENDIX D OF THE 2016 CFC

FIRE ACCESS ROAD SIGNAGE

AND MARKING SHALL CONFORM
TO APPENDIX D OF THE 2016 CFC

MAILBOXES
3'-0"TALL FENCE ALONG FRONT

PROPERTY LINE ( SHOWN SHADED -
TYP.)

EXISTING TREE TO REAMAIN

PROPOSED BIO-TREATMENT AREA -

SEE CIVIL PLANS
Source: CKA Architects, July 28, 2022.
0 10 5 20 Feet
SITE PLAN FIGURE 3.2-1

Page 636 of 1462 ends

Source: CKA Architects, July 28, 2022.

NORTH ELEVATION EAST ELEVATION 9'-0" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
8'-0" 8'-0" 8'-0"
7'-0"
9'-0" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
9'-7" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
9’-0”
8’-0” 8’-0” 8’-0”
7’-0”
10’-0” 9’-0”
9’-0” 10’-0” 9’-7”
THIRD
FLOOR
SECOND
FLOOR
FIRST
FLOOR
THIRD
FLOOR
SECOND
FLOOR
FIRST
FLOOR
9’-0” 10’-0” 9’-0”
THIRD
FLOOR
SECOND
FLOOR
FIRST
FLOOR
NORTH AND EAST ELEVATIONS FIGURE 3.2-2

Page 637 of 1462 ends

Source: CKA Architects, July 28, 2022.

SOUTH ELEVATION WEST ELEVATION 9'-7" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
8'-0" 8'-0"
7'-6"
9'-0" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
9'-7" 10'-0" 9'-0"

FIRST FLOOR

SECOND FLOOR

THIRD FLOOR
1 1
4 1
1 4
2 1
4 2
1 2
44 22
4 1144
9’-0”
8’-0” 8’-0”
7’-6”
10’-0” 9’-7”
9’-0” 10’-0” 9’-0”
THIRD
FLOOR
SECOND
FLOOR
FIRST
FLOOR
THIRD
FLOOR
SECOND
FLOOR
FIRST
FLOOR
9’-0” 10’-0” 9’-7”
THIRD
FLOOR
SECOND
FLOOR
FIRST
FLOOR
SOUTH AND WEST ELEVATIONS FIGURE 3.2-3

Page 638 of 1462 ends

141 3rd Avenue Residential 10 Initial Study
City of Daly City January 2023

3.2.3 Landscaping
The project would include landscaping throughout the project site. Landscaping would include streetscape planting with bioretention areas and street trees along 3rd Avenue, low hedges and accent shrubs/trees between the townhomes, vines along either side of the driveway, a screen planting along the northern end of the internal access road, and a bioretention planting along the southern end of the internal access road. Streetscape fencing and internal neighbor fences would also be included.

3.2.4 Site Access and Parking
The project would include one, 26-foot-wide driveway along 3rd Avenue. The project driveway would lead to a 120-foot internal access road perpendicular to the driveway. Each townhome would include a private driveway extending from the internal access road. Townhome driveways would range from approximately five to 13 feet long. Parking would be provided for each unit via two-car tandem garages in each townhome. Each unit would include at least one electric vehicle (EV) ready space. Additionally, there are seven existing street parking spaces in front of the project site along 3rd Avenue.

Pedestrian access would be provided to the front townhomes via private, gated walkways extending from the 3rd Avenue sidewalk. A five-foot wide, gated sidewalk would run adjacent to the project driveway and provide pedestrian access to the remainder of the townhomes.

3.2.5 Utility Improvements
The project would connect to existing sewer, electrical, and storm drain utilities on 3rd Avenue. All above-ground utilities would be placed below ground. On-site stormwater treatment would occur through the use of flow-through planters and bio-retention areas. The project would include modifications to the existing water system. The project would upsize an approximately 480 feet of the existing four-inch diameter water pipe in 3rd Avenue to an eight-inch water pipe from Castle Street to Habitat Way. The existing four-inch pipe is partially under the sidewalk and would be abandoned. The new eight-inch diameter water pipe would be constructed in the street right-of-way.

All water connections currently served by the existing four-inch pipe would be transferred to the new eight-inch pipe.

There is an existing well buried on-site that was likely used for prior greenhouse irrigation purposes.

The project will abandon and/or destroy the existing well.

3.2.6 Green Building Measures
The project would include green building measures to reduce energy use and project-generated greenhouse gas emissions. The green building measures proposed by the project include:
• Rooftop solar panels
• All-electric buildings
• Water-efficient landscaping

Page 639 of 1462 ends

141 3rd Avenue Residential 11 Initial Study
City of Daly City January 2023

3.2.7 Construction
Construction, which includes demolition, site preparation, and construction of the project, is estimated to take approximately nine months to complete.

USES OF THE INITIAL STUDY/MITIGATED NEGATIVE DECLARATION This Initial Study/MND provides decision makers in the City of Daly City (the Lead Agency), responsible agencies, and the general public with relevant environmental information to use in considering the proposed project. It is intended that this Initial Study be used for discretionary approvals necessary to implement the project, as proposed. These discretionary actions may include, but are not limited to, the following:
• General Plan Amendment
• Rezoning
• Major Subdivision
• Design Review Permit
• Use Permit
• Grading Permit
• Demolition Permit
• Building Permit
• Well Destruction Permit - San Mateo County Environmental Health Services

Page 640 of 1462 ends

141 3rd Avenue Residential 12 Initial Study
City of Daly City January 2023
SECTION 4.0 ENVIRONMENTAL SETTING, CHECKLIST, AND

IMPACT DISCUSSION
This section presents the discussion of impacts related to the following environmental subjects in their respective subsections:

4.1 Aesthetics

4.2 Agriculture and Forestry Resources

4.3 Air Quality

4.4 Biological Resources

4.5 Cultural Resources

4.6 Energy

4.7 Geology and Soils

4.8 Greenhouse Gas Emissions

4.9 Hazards and Hazardous Materials

4.10 Hydrology and Water Quality

4.11 Land Use and Planning

4.12 Mineral Resources

4.13 Noise

4.14 Population and Housing

4.15 Public Services

4.16 Recreation

4.17 Transportation

4.18 Tribal Cultural Resources

4.19 Utilities and Service Systems

4.20 Wildfire

4.21 Mandatory Findings of Significance
The discussion for each environmental subject includes the following subsections:
• Environmental Setting – This subsection 1) provides a brief overview of relevant plans, policies, and regulations that compose the regulatory framework for the project and 2) describes the existing, physical environmental conditions at the project site and in the surrounding area, as relevant.
• Impact Discussion – This subsection 1) includes the recommended checklist questions from Appendix G of the CEQA Guidelines to assess impacts and 2) discusses the project’s impact on the environmental subject as related to the checklist questions. For significant impacts, feasible mitigation measures are identified. “Mitigation measures” are measures that will minimize, avoid, or eliminate a significant impact (CEQA Guidelines Section 15370). Each impact is numbered to correspond to the checklist question being answered. For example, Impact BIO-1 answers the first checklist question in the Biological Resources section.

Mitigation measures are also numbered to correspond to the impact they address. For example, MM BIO-1.1 refers to the first mitigation measure for the first impact in the Biological Resources section.

Page 641 of 1462 ends

141 3rd Avenue Residential 13 Initial Study
City of Daly City January 2023

AESTHETICS

4.1.1 Environmental Setting
Regulatory Framework
State
Senate Bill 743
Senate Bill (SB) 743 was adopted in 2013 and requires lead agencies to use alternatives to level of service (LOS) for evaluating transportation impacts, specifically vehicle miles traveled (VMT). SB 743 also included changes to CEQA that apply to transit-oriented developments, as related to aesthetics and parking impacts. Under SB 743, a project’s aesthetic impacts will no longer be considered significant impacts on the environment if:
• The project is a residential, mixed-use residential, or employment center project, and • The project is located on an infill site within a transit priority area.1

SB 743 also clarifies that local governments retain their ability to regulate a project’s aesthetics impacts outside of the CEQA process. The project site is located within a transit priority area.

Streets and Highway Code Sections 260 through 263
The California Scenic Highway Program (Streets and Highway Code, Sections 260 through 263) is managed by the California Department of Transportation (Caltrans). The program is intended to protect and enhance the natural scenic beauty of California highways and adjacent corridors through special conservation treatment. State laws governing the Scenic Highway Program are found in the Streets and Highway Code, Sections 260 through 263. There are three eligible State scenic highways within the City of Daly City, although none are officially designated; they include Skyline Boulevard (State Route (SR) 35), Cabrillo Highway (SR 1), and Junipero Serra (I-280).

Local
Daly City 2030 General Plan
The Daly City 2030 General Plan (General Plan) includes policies for the purpose of avoiding or mitigating impacts resulting from development projects within the City. The following policies are specific to aesthetics and are applicable to the proposed project. 1 An “infill site” is defined as “a lot located within an urban area that has been previously developed, or on a vacant site where at least 75 percent of the perimeter of the site adjoins, or is separated only by an improved public right-ofway from, parcels that are developed with qualified urban uses.” A “transit priority area” is defined as “an area within 0.5 mile of a major transit stop that is existing or planned, if the planned stop is scheduled to be completed within the planning horizon included in a Transportation Improvement Program adopted pursuant to Section 450.216 or 450.322 of Title 23 of the Code of Federal Regulations.” A “major transit stop” means “a site containing an existing rail transit station, a ferry terminal served by either a bus or rail transit service, or the intersection of two or more major bus routes with a frequency of service interval of 15 minutes or less during the morning and afternoon peak commute periods.” Source: Office of Planning and Research. “Changes to CEQA for Transit Oriented Development – FAQ.” October 14, 2014. Accessed November 11, 2020. http://www.opr.ca.gov/ceqa/updates/sb-743/transit-oriented.html.

Page 642 of 1462 ends

141 3rd Avenue Residential 14 Initial Study
City of Daly City January 2023
Policy/Task Description
Task CE-20.7 As a part of all new development, require, where appropriate, the provision of pedestrian-oriented signs, pedestrian-scaled lighting, benches, and other street furniture so as to make non-motorized forms of travel comfortable and attractive alternatives to the automobile. Where necessary in new development, the City may require additional sidewalk and/or right-of-way width to accommodate these amenities.

Policy LU-16 Regulate the size, quantity, and location of signs to maintain and enhance the visual appearance of Daly City.

Policy RME-20 Recognize the physical differences between different parts of the City and regulate land uses within these areas accordingly.

Task RME-20.4 Incorporate design features in new development that reflect the character of the neighborhood, to ensure that new construction is compatible with existing development.

Policy LU-17 Ensure that private development is responsible for providing any on-or off-site improvements related to and/or mitigating the impacts it causes.

Design Review Ordinance
Chapter 17.45 of the Daly City Zoning Ordinance requires that certain projects undergo design review prior to issuance of any construction permits. A design review committee, as appointed by the mayor, shall evaluate the project’s design, layout, and other features to ensure they are compatible with the existing setting. Projects required to undergo design review include residential projects consisting of four or more dwelling units.

Existing Conditions
The project site consists primarily of a vacant lot covered in grass and weeds. There is also a twostory single-family residence on the northwestern corner of the project site. There is various debris adjacent to the single-family residence on the project site. The surrounding residences to the east, south, and west across 3rd Avenue primarily consist of two-story, zero lot line single-family residences. The surrounding residences vary in color and architectural style. Although the surrounding residences are all similar in height, the roof lines have a stair-like appearance due to the slope of the vicinity. Views from the project site include the surrounding residences, San Bruno Mountain to the east, and hills to the south. Views of the project site are shown in Photos 1-4, below.

The nearest officially designated State Scenic Highway is Interstate 280 (I-280). The segment that is designated as scenic ends in San Bruno, adjacent to Valleywood Drive2 , approximately four miles
south of the project site.
2 CalTrans. California State Scenic Highway System Map. Accessed November 11, 2020. https://www.arcgis.com/apps/webappviewer/index.html?id=2e921695c43643b1aaf7000dfcc19983

Page 643 of 1462 ends

Photo 1: View of the northern portion of the project site from the east side of 3rd Avenue.

Photo 2: View of the existing single-family residence on the project site.

PHOTOS 1 & 2

Page 644 of 1462 ends

Photo 3: View of the project site, looking east from 3rd Avenue.

Photo 4: View of the project site and adjacent residences, looking south from the center of the project site.

PHOTOS 3 & 4

Page 645 of 1462 ends

141 3rd Avenue Residential 17 Initial Study
City of Daly City January 2023

4.1.2 Impact Discussion
Potentially
Significant
Impact
Less than
Significant
with Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Except as provided in Public Resources Code
Section 21099, would the project:
1) Have a substantial adverse effect on a scenic
vista?
2) Substantially damage scenic resources,
including, but not limited to, trees, rock
outcroppings, and historic buildings within a
state scenic highway?
3) In non-urbanized areas, substantially degrade
the existing visual character or quality of
public views of the site and its surroundings? 3
If the project is in an urbanized area, would
the project conflict with applicable zoning and
other regulations governing scenic quality?
4) Create a new source of substantial light or
glare which would adversely affect day or
nighttime views in the area?
Impact AES-1: The project would not have a substantial adverse effect on a scenic vista. (No Impact)
The General Plan identifies three scenic vistas within Daly City: the coastline, San Bruno Mountain, and scenic corridors. The project site is not visible from the coastline due to distance and surrounding development. Scenic corridors identified in the General Plan include Route 35, I-280, Route 1, Guadalupe Canyon Parkway, Mission Street, John Daly Boulevard, and Lake Merced Boulevard.

The nearest of these scenic corridors is Mission Street. The project site is not visible from Mission Street due to surrounding development. The project site would not be visible from the other scenic corridors due to surrounding development and distance.

The project site may be visible from San Bruno Mountain. However, the project would consist of infill development in a residential neighborhood. The proposed townhomes would not be substantially taller than the surrounding buildings and would not be noticeable from San Bruno Mountain because they would be part of larger views of urban development in Daly City. Based on its location and the existing urban development in the surrounding area, the project would not have a substantial adverse effect on a scenic vista. (No Impact) Impact AES-2: The project would not substantially damage scenic resources, including, but not limited to, trees, rock outcroppings, and historic buildings within a state scenic highway. (No Impact)
3 Public views are those that are experienced from publicly accessible vantage points.

Page 646 of 1462 ends

141 3rd Avenue Residential 18 Initial Study
City of Daly City January 2023
There are no designated State Scenic Highways within Daly City. As discussed in Section 4.1.1.2 Existing Conditions, the nearest segment of an officially designated State Scenic Highway is four miles south of the project site on I-280. The project site would not be visible from this segment of I280 and, therefore, the project would not substantially damage scenic resources within a state scenic highway. (No Impact)
Impact AES-3: The project would not substantially degrade the existing visual character or quality of public views of the site and its surroundings. The project would not conflict with applicable zoning and other regulations governing scenic quality. (Less than Significant Impact)
The project site is currently undeveloped, with the exception of an unoccupied single-family residence in the northwestern corner. The proposed townhomes would be consistent with the surrounding residential neighborhood, which is primarily made up of existing zero lot line single family residences. The conceptual renderings of the proposed project show use of largely neutral colors on the exterior stucco and siding along with incorporation of a modern architectural design.

The upper floors of the buildings would step back from the lower floors and recessed windows and entrances would provide variation in the building facades. The project would also include streetscape plantings and street trees along 3rd Avenue to improve the visual quality of the site. The project would partially block the existing view of San Bruno Mountain from the public street, however, 3rd Avenue is not a designated scenic corridor and intermittent views of San Bruno Mountain would continue to be provided in the area. The project would not substantially degrade the existing visual character or quality of public views of the site and its surroundings.

The project would be consistent with the guidelines for R-3 Medium Density in the Zoning Code as well as the Daly City Design Guidelines. The project would be required to obtain a Design Review Permit pursuant to Chapter 17.45 of the Daly City Zoning Ordinance. The project would not conflict with applicable zoning and other regulations governing scenic quality. (Less than Significant Impact)
Impact AES-4: The project would not create a new source of substantial light or glare which would adversely affect day or nighttime views in the area. (Less than Significant Impact)
The proposed townhomes would primarily consist of stucco exteriors. Glass windows and metal railings would have the potential to increase daytime glare. The project would also include exterior nighttime lighting. The glare and lighting generated by the project would be similar to that generated by surrounding development. Compliance with the Design Review process and the General Plan policies would ensure that light and glare impacts are less than significant. The project, therefore, would not create a new substantial light or glare which would adversely affect day or nighttime views in the area. (Less than Significant Impact)

Page 647 of 1462 ends

141 3rd Avenue Residential 19 Initial Study
City of Daly City January 2023

AGRICULTURE AND FORESTRY RESOURCES

4.2.1 Environmental Setting
Regulatory Framework
State
Farmland Mapping and Monitoring Program
The California Department of Conservation’s Farmland Mapping and Monitoring Program (FMMP) assesses the location, quality, and quantity of agricultural land and conversion of these lands over time. Agricultural land is rated according to soil quality and irrigation status. The best quality land is identified as Prime Farmland. In CEQA analyses, the FMMP classifications and published county maps are used, in part, to identify whether agricultural resources that could be affected are present on-site or in the project area.4

California Land Conservation Act
The California Land Conservation Act (Williamson Act) enables local governments to enter into contracts with private landowners to restrict parcels of land to agricultural or related open space uses.

In return, landowners receive lower property tax assessments. In CEQA analyses, identification of properties that are under a Williamson Act contract is used to also identify sites that may contain agricultural resources or are zoned for agricultural uses.5 Fire and Resource Assessment Program
The California Department of Forestry and Fire Protection (CAL FIRE) identifies forest land, timberland, and lands zoned for timberland production that can (or do) support forestry resources.6 Programs such as CAL FIRE’s Fire and Resource Assessment Program are used to identify whether forest land, timberland, or timberland production areas that could be affected are located on or adjacent to a project site.7
Existing Conditions
The project site is currently a primarily vacant lot surrounded by a residential neighborhood. The project site is zoned I-D, Interim District. The project site is not zoned for agriculture, not covered by a Williamson Act contract, and is not used or zoned for timber or agricultural production. 4 California Department of Conservation. “Farmland Mapping and Monitoring Program.” Accessed November 12, 2020. http://www.conservation.ca.gov/dlrp/fmmp/Pages/Index.aspx. 5 California Department of Conservation. “Williamson Act.” Accessed November 12, 2020. http://www.conservation.ca.gov/dlrp/lca. 6 Forest Land is land that can support 10 percent native tree cover and allows for management of forest resources (California Public Resources Code Section 12220(g)); Timberland is land not owned by the federal government or designated as experimental forest land that is available for, and capable of, growing trees to produce lumber and other products, including Christmas trees (California Public Resources Code Section 4526); and Timberland Production is land used for growing and harvesting timber and compatible uses (Government Code Section 51104(g)).
7 California Department of Forestry and Fire Protection. “Fire and Resource Assessment Program.” Accessed November 12, 2020. http://frap.fire.ca.gov/.

Page 648 of 1462 ends

141 3rd Avenue Residential 20 Initial Study
City of Daly City January 2023

4.2.2 Impact Discussion
Potentially
Significant
Impact
Less than
Significant
with Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
1) Convert Prime Farmland, Unique Farmland, or
Farmland of Statewide Importance
(Farmland), as shown on the maps prepared
pursuant to the Farmland Mapping and
Monitoring Program of the California
Resources Agency, to non-agricultural use?
2) Conflict with existing zoning for agricultural
use, or a Williamson Act contract?
3) Conflict with existing zoning for, or cause
rezoning of, forest land (as defined in Public
Resources Code Section 12220(g)), timberland
(as defined by Public Resources Code Section
4526), or timberland zoned Timberland
Production (as defined by Government Code
Section 51104(g))?
4) Result in a loss of forest land or conversion of
forest land to non-forest use?
5) Involve other changes in the existing
environment which, due to their location or
nature, could result in conversion of Farmland
to non-agricultural use or conversion of forest
land to non-forest use?
Impact AG-1: The project would not convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance, as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use. (No Impact)
According to the Department of Conservation, the project site is designated as Urban and Built-Up Land.8
The project site is not designated for farmland. Therefore, the project would not convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance to non-agricultural use. (No Impact)
Impact AG-2: The project would not conflict with existing zoning for agricultural use, or a Williamson Act contract. (No Impact)
The project site is currently zoned I-D, Interim District. The project site is not under a Williamson Act contract. (No Impact)
8 California Department of Conservation. “California Important Farmland Finder.” Accessed November 12, 2020. https://maps.conservation.ca.gov/DLRP/CIFF/

Page 649 of 1462 ends

141 3rd Avenue Residential 21 Initial Study
City of Daly City January 2023
Impact AG-3: The project would not conflict with existing zoning for, or cause rezoning of, forest land, timberland, or timberland zoned Timberland Production. (No Impact)
The project site is not designated or zoned as timberland or forest land. For this reason, the project would have not conflict with existing zoning for, or cause rezoning of, forest land, timberland, or timberland zoned Timberland Production. (No Impact)
Impact AG-4: The project would not result in a loss of forest land or conversion of forest land to non-forest use. (No Impact)
The project site does not contain any forest land. The project would not result in a loss of forest land or conversion of forest land to non-forest use. (No Impact) Impact AG-5: The project would not involve other changes in the existing environment which, due to their location or nature, could result in conversion of Farmland, to non-agricultural use or conversion of forest land to non-forest use. (No Impact)
The project would not involve any changes in the existing environment which could result in conversion of Farmland to non-agricultural use or conversion or forest land to non-forest use. (No Impact)

Page 650 of 1462 ends

141 3rd Avenue Residential 22 Initial Study
City of Daly City January 2023

AIR QUALITY
The following discussion is based, in part, on a Construction Community Risk Assessment prepared for the project by Illingworth & Rodkin, Inc. in January 2021. A copy of the report is included as Appendix A in this Initial Study.

4.3.1 Environmental Setting
Background information
Criteria Pollutants
Air quality in the Bay Area is assessed related to six common air pollutants (referred to as criteria pollutants), including ground-level ozone (O3), nitrogen oxides (NOx), particulate matter (PM), carbon monoxide (CO), sulfur oxides (SOx), and lead.9
Criteria pollutants are regulated because they
result in health effects. An overview of the sources of criteria pollutants and their associated health are summarized in Table 4.3-1. The most commonly regulated criteria pollutants in the Bay Area are discussed further below.

Table 4.3-1: Health Effects of Air Pollutants
Pollutants Sources Primary Effects
Ozone (O3) Atmospheric reaction of organic gases
with nitrogen oxides in sunlight
• Aggravation of respiratory and
cardiovascular diseases
• Irritation of eyes
• Cardiopulmonary function impairment
Nitrogen
Dioxide (NO2)
Motor vehicle exhaust, high
temperature stationary combustion,
atmospheric reactions
• Aggravation of respiratory illness
• Reduced visibility
Fine
Particulate
Matter (PM2.5)
and Coarse
Particulate
Matter (PM10)
Stationary combustion of solid fuels,
construction activities, industrial
processes, atmospheric chemical
reactions
• Reduced lung function, especially in
children
• Aggravation of respiratory and
cardiorespiratory diseases
• Increased cough and chest discomfort
• Reduced visibility
Toxic Air
Contaminants
(TACs)
Cars and trucks, especially dieselfueled; industrial sources, such as chrome platers; dry cleaners and service
stations; building materials and
products
• Cancer
• Chronic eye, lung, or skin irritation
• Neurological and reproductive
disorders
High O3 levels are caused by the cumulative emissions of reactive organic gases (ROG) and NOX.

These precursor pollutants react under certain meteorological conditions to form high O3 levels.

Controlling the emissions of these precursor pollutants is the focus of the Bay Area’s attempts to 9 The area has attained both state and federal ambient air quality standards for CO. The project does not include substantial new emissions of sulfur dioxide or lead. These criteria pollutants are not discussed further.

Page 651 of 1462 ends

141 3rd Avenue Residential 23 Initial Study
City of Daly City January 2023
reduce O3 levels. The highest O3 levels in the Bay Area occur in the eastern and southern inland valleys that are downwind of air pollutant sources.

PM is a problematic air pollutant in the Bay Area. PM is assessed and measured in terms of respirable particulate matter or particles that have a diameter of 10 micrometers or less (PM10) and fine particulate matter where particles have a diameter of 2.5 micrometers or less (PM2.5). Elevated concentrations of PM10 and PM2.5 are the result of both region-wide emissions and localized emissions.

Toxic Air Contaminants
TACs are a broad class of compounds known to have health effects. They include but are not limited to criteria pollutants. TACs are found in ambient air, especially in urban areas, and are caused by industry, agriculture, diesel fuel combustion, and commercial operations (e.g., dry cleaners). TACs are typically found in low concentrations, even near their source (e.g., diesel particulate matter [DPM] near a freeway).

Diesel exhaust is the predominant TAC in urban air and is estimated to represent about three-quarters of the cancer risk from TACs. Diesel exhaust is a complex mixture of gases, vapors, and fine particles. Medium- and heavy-duty diesel trucks represent the bulk of DPM emissions from California highways. The majority of DPM is small enough to be inhaled into the lungs. Most inhaled particles are subsequently exhaled, but some deposit on the lung surface or are deposited in the deepest regions of the lungs (most susceptible to injury).10 Chemicals in diesel exhaust, such as benzene and formaldehyde, have been previously identified as TACs by the California Air Resources Board (CARB).

Sensitive Receptors
Some groups of people are more affected by air pollution than others. CARB has identified the following persons who are most likely to be affected by air pollution: children under 16, the elderly over 65, athletes, and people with cardiovascular and chronic respiratory diseases. These groups are classified as sensitive receptors. Locations that may contain a high concentration of these sensitive population groups include residential areas, hospitals, daycare facilities, elder care facilities, and elementary schools.

Regulatory Framework
Federal and State
Clean Air Act
At the federal level, the United States Environmental Protection Agency (EPA) is responsible for overseeing implementation of the Clean Air Act and its subsequent amendments. The federal Clean Air Act requires the EPA to set national ambient air quality standards for the six common criteria pollutants (discussed previously), including PM, O3, CO, SOx, NOx, and lead. 10 California Air Resources Board. “Overview: Diesel Exhaust and Health.” Accessed November 17, 2020. https://www.arb.ca.gov/research/diesel/diesel-health.htm.

Page 652 of 1462 ends

141 3rd Avenue Residential 24 Initial Study
City of Daly City January 2023
CARB is the state agency that regulates mobile sources throughout the state and oversees implementation of the state air quality laws and regulations, including the California Clean Air Act.

The EPA and the CARB have adopted ambient air quality standards establishing permissible levels of these pollutants to protect public health and the climate. Violations of ambient air quality standards are based on air pollutant monitoring data and are determined for each air pollutant.

Attainment status for a pollutant means that a given air district meets the standard set by the EPA and/or CARB.

Risk Reduction Plan
To address the issue of diesel emissions in the state, CARB developed the Risk Reduction Plan to Reduce Particulate Matter Emissions from Diesel-Fueled Engines and Vehicles. In addition to requiring more stringent emission standards for new on-road and off-road mobile sources and stationary diesel-fueled engines to reduce particulate matter emissions by 90 percent, the plan involves application of emission control strategies to existing diesel vehicles and equipment to reduce diesel particulate matter (DPM) (in additional to other pollutants). Implementation of this plan, in conjunction with stringent federal and CARB-adopted emission limits for diesel fueled vehicles and equipment (including off-road equipment), will significantly reduce emissions of DPM and NOX.

Regional
2017 Clean Air Plan
The Bay Area Air Quality Management District (BAAQMD) is the agency primarily responsible for assuring that the federal and state ambient air quality standards are maintained in the San Francisco Bay Area. Regional air quality management districts, such as BAAQMD, must prepare air quality plans specifying how state and federal air quality standards will be met. BAAQMD’s most recently adopted plan is the Bay Area 2017 Clean Air Plan (2017 CAP). The 2017 CAP focuses on two related BAAQMD goals: protecting public health and protecting the climate. To protect public health, the 2017 CAP describes how BAAQMD will continue its progress toward attaining state and federal air quality standards and eliminating health risk disparities from exposure to air pollution among Bay Area communities. To protect the climate, the 2017 CAP includes control measures designed to reduce emissions of methane and other super-greenhouse gases (GHGs) that are potent climate pollutants in the near-term, and to decrease emissions of carbon dioxide by reducing fossil fuel combustion.11
CEQA Air Quality Guidelines
The BAAQMD CEQA Air Quality Guidelines are intended to serve as a guide for those who prepare or evaluate air quality impact analyses for projects and plans in the San Francisco Bay Area.

Jurisdictions in the San Francisco Bay Area Air Basin utilize the thresholds and methodology for assessing air quality impacts developed by BAAQMD within their CEQA Air Quality Guidelines.

The guidelines include information on legal requirements, BAAQMD rules, methods of analyzing impacts, and recommended mitigation measures.
11 BAAQMD. Final 2017 Clean Air Plan. April 19, 2017. http://www.baaqmd.gov/plans-and-climate/air-qualityplans/current-plans.

Page 653 of 1462 ends

141 3rd Avenue Residential 25 Initial Study
City of Daly City January 2023
Daly City 2030 General Plan
The Daly City 2030 General Plan (General Plan) includes policies for the purpose of avoiding or mitigating impacts resulting from development projects within the City. The following policies are specific to air quality and are applicable to the proposed project.

Policy/Task Description
Policy RME-5 Assess projected air emissions from new development and associated construction and demolition activities in conformance with the BAAQMD CEQA Guidelines, and relative to state and federal standards.

Task RME-5.1 Amend the Planning Division’s development review procedures to include a formal step that would help identify how a development project can incorporate design or functional changes that will minimize air quality impacts.

Task RME-5.3 Consider cumulative air quality impacts consistent with the region's Clean Air Plan and State law.

Task RME-5.4 Require the preparation of a Transportation Systems Management plan for new development that has been determined to contribute to a reduction in location air quality.

Task RME-5.5 Consult with BAAQMD to identify stationary and mobile TAC sources and determine the need for and requirements of a health risk assessment for proposed developments.

Policy RME-6 Minimize exposure of residents to objectionable smoke and odors by proactively regulating potential sources.

Task RME-6.2 Require new residential development projects and projects categorized as sensitive receptors to be located an adequate distance from facilities that are existing and potential sources of odor. An adequate separate distance will be determined based upon the type, size and operations of the facility.

Existing Conditions
The Bay Area is considered a non-attainment area for ground-level O3 and PM2.5 under both the federal Clean Air Act and state Clean Air Act. The area is also considered nonattainment for PM10 under the state act, but not the federal act. The area has attained both state and federal ambient air quality standards for CO. As part of an effort to attain and maintain ambient air quality standards for O3 and PM10, BAAQMD has established thresholds of significance for these air pollutants and their precursors. These thresholds are for O3 precursor pollutants (ROG and NOx), PM10, and PM2.5, and apply to both construction period and operational period impacts.

The project site is currently vacant and, therefore, not a substantial source of air pollutant emissions.

The closest sensitive receptors to the project site are in the single- and multi-family residences adjacent to and surrounding the project site. There are also students at the nearby Thornton High School (14 years and older) approximately 330 feet to the west of the site and Milestone Academy Preschool (2 years and older) approximately 450 feet to the southeast of the site.

Page 654 of 1462 ends

141 3rd Avenue Residential 26 Initial Study
City of Daly City January 2023

4.3.2 Impact Discussion
Potentially
Significant
Impact
Less than
Significant
with Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
1) Conflict with or obstruct implementation of
the applicable air quality plan?
2) Result in a cumulatively considerable net
increase of any criteria pollutant for which the
project region is non-attainment under an
applicable federal or state ambient air quality
standard?
3) Expose sensitive receptors to substantial
pollutant concentrations?
4) Result in other emissions (such as those
leading to odors) adversely affecting a
substantial number of people?
Thresholds of Significance
Impacts from the Project
As discussed in CEQA Guidelines Section 15064(b), the determination of whether a project may have a significant effect on the environment calls for judgment on the part of the lead agency and must be based to the extent possible on scientific and factual data. The City of Daly City has considered the air quality thresholds updated by BAAQMD in May 2017 and regards these thresholds to be based on the best information available for the San Francisco Bay Area Air Basin and conservative in terms of the assessment of health effects associated with TACs and PM2.5. The BAAQMD CEQA Air Quality thresholds used in this analysis are identified in Table 4.3-2 below.

Page 655 of 1462 ends

141 3rd Avenue Residential 27 Initial Study
City of Daly City January 2023
Table 4.3-2: BAAQMD Air Quality Significance Thresholds Pollutant
Construction
Thresholds Operation Thresholds
Average Daily
Emissions
(pounds/day)
Average Daily
Emissions
(pounds/day)
Annual Average
Emissions (tons/year)
Criteria Air Pollutants
ROG, NOx 54 54 10
PM10 82 (exhaust) 82 15
PM2.5 54 (exhaust) 54 10
CO Not Applicable 9.0 ppm (eight-hour) or 20.0 ppm (one-hour) Fugitive Dust
Dust Control
Measures/Best
Management Practices
Not Applicable
Health Risks and Hazards for New Sources (within a 1,000-foot Zone of Influence) Health Hazard Single Source Combined Cumulative Sources Excess Cancer Risk 10 per one million 100 per one million Hazard Index 1.0 10.0
Incremental Annual PM2.5 0.3 µg/m3 0.8 μg/m3 (average)
Impact AIR-1: The project would not conflict with or obstruct implementation of the applicable air quality plan. (Less than Significant Impact) The proposed project would not conflict with the 2017 CAP because it would be smaller than the BAAQMD CEQA Air Quality Guidelines Operational Criteria Pollutant Screening Size. The 2011 BAAQMD CEQA Air Quality Guidelines contain a screening table that lists the minimum unit count for residential projects, below which the project would not result in the generation of operational criteria air pollutants that exceed the threshold of significance. The screening threshold for townhouses is 451 dwelling units for operational criteria pollutants and 240 dwelling units for construction criteria air pollutants. The project, proposing 14 new townhomes, is well below this screening threshold.

Given that the project would not exceed the BAAQMD screening criteria, it would not result in the generation of operational-related criteria air pollutants and/or precursors that exceed the thresholds shown in Table 4.3-2. Thus, the project is not required to incorporate project-specific control measures listed in the 2017 CAP. Further, implementation of the project would not inhibit BAAQMD or partner agencies from continuing progress toward attaining state and federal air quality standards and eliminating health-risk disparities from exposure to air pollution among Bay Area communities, as described within the 2017 CAP. (Less than Significant Impact)

Page 656 of 1462 ends

141 3rd Avenue Residential 28 Initial Study
City of Daly City January 2023
Impact AIR-2: The project would not result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard. (Less than Significant Impact)
As discussed in Impact AIR-1 above, the project falls below the BAAQMD screening thresholds and thus, would not generate a significant amount of criteria air pollutants during operation or construction. (Less than Significant Impact)
Impact AIR-3: The project would not expose sensitive receptors to substantial pollutant concentrations. (Less than Significant Impact with Mitigation Incorporated)
Sensitive receptors in the project vicinity include surrounding residences, Milestone Academy Preschool, and Thornton High School. The maximally exposed individual (MEI) was identified at a residence adjacent to the project’s eastern boundary. Figure 4.3-1 shows the location of all sensitive receptors that the project would have potential to affect. These receptors would be exposed to TAC emissions associated with project construction (i.e., on-site construction and truck hauling emissions). Dispersion modeling was used to identify on-site and off-site concentrations of particulate matter and evaluate the health risks associated with the construction TAC emissions.

Community risk impacts are addressed by predicting increased lifetime cancer risk, the increase in annual PM2.5 concentrations, and computing the Hazard Index (HI) for non-cancer health risks.

Construction equipment and associated heavy-duty truck traffic generates diesel exhaust, which is a known TAC. The results of the health risk assessment for the MEI and the most affected school (Milestone Academy Preschool) are summarized below in Table 4.3-3. To provide the most conservative analysis, the MEI was assumed to be an infant.

Table 4.3-3: Construction Risk Impacts
Source Cancer Risk (per
million)
Annual PM2.5
(µg/m3
) Hazard Index
BAAQMD Single-Source Threshold >10.0 >0.3 >1.0
MEI (Adjacent residence)
Project construction – unmitigated 30.5 (infant) 0.23 0.03 Project construction - mitigated* 1.7 (infant) 0.04 <0.01 Exceed Threshold? (unmitigated) Yes No No
Exceed Threshold? (mitigated) No No No
Milestone Academy Preschool
Project construction - unmitigated 0.9 (child) 0.02 <0.01 Exceed Threshold? (unmitigated) No No No
*Project to include mitigation as described in MM AIR-3.2 below.

Page 657 of 1462 ends

141 3rd Avenue Residential 29 Initial Study
City of Daly City January 2023
As shown in Table 4.3-3, unmitigated project construction would exceed the BAAQMD singlesource threshold for cancer risk at the location of the MEI. Additionally, project construction would generate diesel particulates and fugitive dust in the form of PM10 and PM2.5, which would contribute to health risks but would not exceed BAAQMD thresholds.

Mitigation Measures: To reduce construction-period TAC emissions, the project shall implement the following mitigation measures:

MM AIR-3.1: BAAQMD Best Management Practices. During any construction period ground disturbance, the applicant shall ensure that the project contractor implements measures to control dust and exhaust. Implementation of the measures recommended by BAAQMD and listed below would reduce the air quality impacts associated with grading and new construction to a less-than-significant level. Additional measures are identified to reduce construction equipment exhaust emissions. The contractor shall implement the following best management practices that are required of all projects:
• All exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, and unpaved access roads) shall be watered two times per day. • All haul trucks transporting soil, sand, or other loose material off-site shall be covered.
• All visible mud or dirt track-out onto adjacent public roads shall be removed using wet power vacuum street sweepers at least once per day. The use of dry power sweeping is prohibited.
• All vehicle speeds on unpaved roads shall be limited to 15 miles per hour (mph).
• All roadways, driveways, and sidewalks to be paved shall be completed as soon as possible. Building pads shall be laid as soon as possible after grading unless seeding or soil binders are used.
• Idling times shall be minimized either by shutting equipment off when not in use or reducing the maximum idling time to five minutes (as required by the California airborne toxics control measure Title 13, Section 2485 of California Code of Regulations [CCR]). Clear signage shall be provided for construction workers at all access points.
• All construction equipment shall be maintained and properly tuned in accordance with manufacturer’s specifications. All equipment shall be checked by a certified mechanic and determined to be running in proper condition prior to operation.
• Post a publicly visible sign with the telephone number and person to contact at the Lead Agency regarding dust complaints. This person shall respond and take corrective action within 48 hours. The Air District’s phone number shall also be visible to ensure compliance with applicable regulations.

Page 658 of 1462 ends

)LJXUH 3URMHFW &RQVWUXFWLRQ 6LWH /RFDWLRQV RI 2II6LWH 6HQVLWLYH 5HFHSWRUV DQG 0D[LPXP7$&,PSDFW/RFDWLRQ

Source: Illingworth & Rodkin, Inc., January 29, 2021.

LOCATIONS OF SENSITIVE RECEPTORS AND MEI FIGURE 4.3-1

Page 659 of 1462 ends

141 3rd Avenue Residential 31 Initial Study
City of Daly City January 2023
MM AIR-3.2: Tier 4 Emission Equipment. All construction equipment larger than 25 horsepower used at the site for more than two continuous days or 20 hours total shall meet U.S. EPA Tier 4 emission standards for particulate matter (PM10 and PM2.5). If use of Tier 4 equipment is not available, alternatively use equipment that meets U.S. EPA emission standards for Tier 3 engines and include particulate matter emissions control equivalent to CARB Level 3 verifiable diesel emission control devices that altogether achieve a 67 percent reduction in particulate matter exhaust in comparison to uncontrolled equipment; alternatively (or in combination). As another alternative, the use of electrical or non-diesel fueled equipment may be used in substitution of diesel equipment.

With implementation of the best management practices (BMPs) listed in MM AIR-3.1, fugitive dust impacts from construction would be reduced to a less than significant level. Implementation of MM AIR-3.2 would reduce the project’s cancer risk impacts to below the BAAQMD single-source threshold. (Less than Significant Impact with Mitigation Incorporated) Cumulative Community Health Risks
The community health impacts of the project when combined with existing sources of TACs with 1,000 feet of the project site were also analyzed. Existing TAC sources in the project vicinity include Mission Street (SR 82), the Shell gas station located at 950 Hillside Boulevard, and three auto body shops located along Mission Street. The results of the cumulative community health risks assessment are summarized below in Table 4.3-4.

Table 4.3-4: Cumulative Community Health Risks Impacts
Source Cancer Risk (per
million)
Annual PM2.5
(µg/m3
) Hazard Index
Project Construction
Unmitigated 30.5 (infant) 0.23 0.03
Mitigated 1.7 (infant) 0.04 <0.01
Cumulative Sources
Mission Street (SR 82) 5.1 0.17 --
Colma Auto Body Shop, Inc. -- -- <0.01
D&J Auto Body Specialists,
Inc. -- -- <0.01
19th Auto Body Center -- -- <0.01
Hillside Shell station 4.0 -- 0.02
Combined Sources
Unmitigated 39.6 (infant) 0.40 <0.08
Mitigated 10.8 (infant) 0.21 <0.06

Page 660 of 1462 ends

141 3rd Avenue Residential 32 Initial Study
City of Daly City January 2023
Table 4.3-4: Cumulative Community Health Risks Impacts
Source Cancer Risk (per
million)
Annual PM2.5
(µg/m3
) Hazard Index
BAAQMD Cumulative
Source Threshold >100 >0.8 >10.0
Exceed Threshold?
(unmitigated) No No No
Exceed Threshold? (mitigated) No No No
As seen in Table 4.3-4, the project would not exceed BAAQMD thresholds for cumulative community health risk impact when combined with existing TAC sources in the project vicinity.

Therefore, the project would not expose sensitive receptors to substantial pollutant concentrations. (Less than Significant Impact)
Impact AIR-4: The project would not result in other emissions (such as those leading to odors) adversely affecting a substantial number of people. (Less than Significant Impact)
The project would generate localized emissions of diesel exhaust during construction equipment operation and truck activity. These emissions may be noticeable from time to time by adjacent receptors. However, they would be localized and not likely to adversely affect people off-site or result in odor complaints. Residential development is not identified by BAAQMD as a substantial source of odors. The proposed project, therefore, would not generate odors that would affect a substantial number of people. (Less Than Significant Impact)

4.3.3 Non-CEQA Effects
Per California Building Industry Association v. Bay Area Air Quality Management District, 62 Cal. 4th 369 (BIA v. BAAQMD), effects of the environment on the project are not considered CEQA impacts. The following discussion is included for informational purposes only because the City of Daly City has policies that address existing air quality conditions affecting a proposed project.

The project would introduce new residences near existing sources of TAC emissions. As mentioned under Impact AIR-3, existing TAC sources include Mission Street (SR 82), the Shell station located at 950 Hillside Boulevard, and several auto body shops located along Mission Street. The health risk impacts from each TAC source on the proposed new residents both individually and cumulatively have been analyzed. The results of this analysis are summarized in Table 4.3-5, below.

Table 4.3-5: Community Risk Impacts Upon the On-site Sensitive Receptors Source Cancer Risk (per
million)
Annual PM2.5
(µg/m3) Hazard Index
Mission Street (SR-82) 5.4 0.18 --
Colma Auto Body Shop, Inc. -- -- <0.01

Page 661 of 1462 ends

141 3rd Avenue Residential 33 Initial Study
City of Daly City January 2023
Table 4.3-5: Community Risk Impacts Upon the On-site Sensitive Receptors Source Cancer Risk (per
million)
Annual PM2.5
(µg/m3
) Hazard Index
D&J Auto Body Specialists, Inc. -- -- <0.01
19th Auto Body Center -- -- <0.01
Hillside Shell station 0.6 -- <0.01
BAAQMD Single-Source
Threshold >10.0 >0.3 >1.0
Exceed Threshold? No No No
Cumulative Total 6.0 0.18 <0.04
BAAQMD Cumulative Source
Threshold >100 >0.8 >10.0
Exceed Threshold? No No No
The existing TAC sources would not expose sensitive receptors on-site to substantial levels of pollutant concentrations. The community health risk impacts on residences generated by the project would be less than significant. (Less than Significant Impact)

Page 662 of 1462 ends

141 3rd Avenue Residential 34 Initial Study
City of Daly City January 2023

BIOLOGICAL RESOURCES

4.4.1 Environmental Setting
Regulatory Framework
Federal and State
Endangered Species Act
Individual plant and animal species listed as rare, threatened, or endangered under state and federal Endangered Species Acts are considered special-status species. Federal and state endangered species legislation has provided the United States Fish and Wildlife Service (USFWS) and the California Department of Fish and Wildlife (CDFW) with a mechanism for conserving and protecting plant and animal species of limited distribution and/or low or declining populations. Permits may be required from both the USFWS and CDFW if activities associated with a proposed project would result in the take of a species listed as threatened or endangered. To “take” a listed species, as defined by the State of California, is “to hunt, pursue, catch, capture, or kill, or attempt to hunt, pursue, catch, capture, or kill” these species. Take is more broadly defined by the federal Endangered Species Act to include harm of a listed species.

In addition to species listed under state and federal Endangered Species Acts, Sections 15380(b) and (c) of the CEQA Guidelines provide that all potential rare or sensitive species, or habitats capable of supporting rare species, must be considered as part of the environmental review process. These may include plant species listed by the California Native Plant Society and CDFW-listed Species of Special Concern.

Migratory Bird Treaty Act
The federal Migratory Bird Treaty Act (MBTA) prohibits killing, capture, possession, or trade of migratory birds except in accordance with regulations prescribed by the Secretary of the Interior.

Hunting and poaching are also prohibited. The taking and killing of birds resulting from an activity is not prohibited by the MBTA when the underlying purpose of that activity is not to take birds.12 Nesting birds are considered special-status species and are protected by the USFWS. The CDFW also protects migratory and nesting birds under California Fish and Game Code Sections 3503, 3503.5, and 3800. The CDFW defines taking as causing abandonment and/or loss of reproductive efforts through disturbance.

Sensitive Habitat Regulations
Wetland and riparian habitats are considered sensitive habitats under CEQA. They are also afforded protection under applicable federal, state, and local regulations, and are generally subject to regulation by the United States Army Corps of Engineers (USACE), Regional Water Quality Control Board (RWQCB), CDFW, and/or the USFWS under provisions of the federal Clean Water Act (e.g., Sections 303, 304, 404) and State of California Porter-Cologne Water Quality Control Act. 12 United States Department of the Interior. “Memorandum M-37050. The Migratory Bird Treaty Act Does Not Prohibit Incidental Take.” Accessed November 17, 2020. https://www.doi.gov/sites/doi.gov/files/uploads/m37050.pdf.

Page 663 of 1462 ends

141 3rd Avenue Residential 35 Initial Study
City of Daly City January 2023
Regional and Local
San Bruno Mountain Habitat Conservation Plan
The San Bruno Area Habitat Conservation Plan (HCP) was executed as an Agreement in November 1982 with the US Fish and Wildlife Service, California Department of Fish and Game, County of San Mateo, the cities of Brisbane, Daly City and South San Francisco, and several private property owners. The HCP was created to provide for the indefinite perpetuation of the Mission blue butterfly and to protect habitat of the other Species of Concern. It includes the establishment of public ownership of sufficient habitat area to support the species as well as funding for the ongoing maintenance of the habitat. Funding is provided by limited development that was excluded from such habitat area and devoted to urban uses, including, among others, residential, community service, commercial and recreational uses.

Given that the San Bruno Mountain encompasses approximately 3,600 acres, with various ownerships and within various cities, the HCP presents a single unifying and coordinating document to provide protection, enhancement and funding for the entire San Bruno Mountain ecological community. The HCP provides for the perpetuation of conserved habitat areas through eradication of exotic species; re-vegetation with grassland species; effective yearly monitoring of the species of concern to control reintroduction of exotics; and patrol of the area to discourage destructive human activities.

Portions of three of the four HCP planning areas are located within the jurisdiction of Daly City (Saddle, Radio Ridge, and Guadalupe Hills). Within those areas, all designated development has been completed including Point Pacific, Village in the Park, South Hills Estates, Linda Vista, and Bay Ridge. All of this development resulted in a net gain of available habitat either through dedication, easements, or on-site restoration. Furthermore, all of these projects continue to contribute to a trust fund that is used to maintain and monitor the habitat in perpetuity.

Municipal Code Chapter 12.40 – Urban Forestry
The Municipal Code provides regulations to optimize the use of trees and other landscaping within the city. Chapter 12.40 requires plans submitted to the City for the construction, repair, or alteration of any building, housing, or structure to include provisions for sufficient guards or protectors to prevent injury to any existing publicly owned trees, shrubs, flowers, or vines. It also imposes conditions regarding the displacement of public trees, where a comparable size tree shall be planted, or a fee is paid to the City to cover the cost of replacing a removed tree.

Daly City 2030 General Plan
The General Plan includes policies for the purpose of avoiding or mitigating impacts resulting from development projects within the City. The following policies are specific to biological resources and are applicable to the proposed project.

Policy/Task Description
Policy LU-17 Ensure that private development is responsible for providing any on- or off-site improvements related to and/or mitigating the impacts it causes.

Page 664 of 1462 ends

141 3rd Avenue Residential 36 Initial Study
City of Daly City January 2023
Policy LU-18 Development activities shall not be allowed to significantly disrupt the natural or urban environment and all reasonable measures shall be taken to identify and prevent or mitigate potentially significant effects.

Policy RME16 The City shall continue to recognize the importance of the San Bruno Mountain HCP, uphold the integrity of the concepts behind the plan, and respect the agreements that serve to implement it.

Existing Conditions
There are a total of three trees on the project site, one in the front yard and two in the rear yard of the existing single-family residence. The tree species and sizes have not been identified. There is also a large cactus in the rear yard. The rest of the project site is covered with grass, weeds, and bare dirt.

There are no special status species known to occur on-site and there is no suitable habitat for special status species.

4.4.2 Impact Discussion
Potentially
Significant
Impact
Less than
Significant
with Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
1) Have a substantial adverse effect, either
directly or through habitat modifications, on
any species identified as a candidate, sensitive,
or special status species in local or regional
plans, policies, or regulations, or by the
California Department of Fish and Wildlife
(CDFW) or United States Fish and Wildlife
Service (USFWS)?
2) Have a substantial adverse effect on any
riparian habitat or other sensitive natural
community identified in local or regional
plans, policies, regulations, or by the CDFW
or USFWS?
3) Have a substantial adverse effect on state or
federally protected wetlands (including, but
not limited to, marsh, vernal pool, coastal,
etc.) through direct removal, filling,
hydrological interruption, or other means?
4) Interfere substantially with the movement of
any native resident or migratory fish or
wildlife species or with established native
resident or migratory wildlife corridors, or
impede the use of native wildlife nursery sites?
5) Conflict with any local policies or ordinances
protecting biological resources, such as a tree
preservation policy or ordinance?

Page 665 of 1462 ends

141 3rd Avenue Residential 37 Initial Study
City of Daly City January 2023
Potentially
Significant
Impact
Less than
Significant
with Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
6) Conflict with the provisions of an adopted
Habitat Conservation Plan, Natural
Community Conservation Plan, or other
approved local, regional, or state habitat
conservation plan?
Impact BIO-1: The project would not have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the CDFW or USFWS. (Less than Significant Impact with Mitigation Incorporated)
There are no candidate, sensitive, or special status species present on the project site. The proposed project would not have any effect, directly or indirectly, on species identified by any plans, policies, regulations, or by the CDFW or USFWS.

The mature trees on and adjacent to the project site could provide nesting habitat for birds, including migratory birds and raptors. Nesting birds are among the species protected under provisions of the Migratory Bird Treaty Act and California Fish and Game Code Sections 3503, 3503.5, and 2800.

Construction of the project during the breeding season could result in the incidental loss of fertile eggs or nestlings, or otherwise lead to nest abandonment. Disturbance that causes abandonment and/or loss of reproductive effort is considered a taking by the CDFW. Any loss of fertile eggs, nesting raptors, or any activities resulting in nest abandonment would constitute an impact.

Construction activities such as tree removal and site grading that disturb a nesting bird or raptor onsite or immediately adjacent to the construction zone would also constitute an impact.

Mitigation Measure: The project will be required to implement the following mitigation measures to reduce impacts to raptors and nesting birds to a less than significant level:

Page 666 of 1462 ends

141 3rd Avenue Residential 38 Initial Study
City of Daly City January 2023
the young have fledged (left the nest), the nest is vacated, and there is no evidence of second nesting attempts.

Conformance to State and federal law protecting nesting birds through implementation of mitigation measure MM BIO-1.1 would reduce potential impacts to a less than significant level. (Less Than Significant Impact with Mitigation Incorporated)
Impact BIO-2: The project would not have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations or by the CDFW or USFWS. (No Impact) The project site is located in a developed, urban area of Daly City. There is no riparian habitat or other sensitive habitat areas on or adjacent to the project site. Therefore, the project would not have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations or by the CDFW or USFWS. (No Impact) Impact BIO-3: The project would not have a substantial adverse effect on state or federally protected wetlands through direct removal, filling, hydrological interruption, or other means. (No Impact)
There are no federally protected wetlands on or adjacent to the project site. (No Impact) Impact BIO-4: The project would not interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites. (Less than Significant Impact)
The project site is surrounded by developed, urban land uses. The project site is not part of an established native or migratory wildlife corridor or nursery site. The project would not interfere substantially with the movement of any native resident or migratory wildlife species. (Less than Significant Impact)
Impact BIO-5: The project would not conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance. (Less than Significant Impact)
The project would remove the three existing trees on-site and plant approximately 20 new trees onsite. The project would not remove any trees in the public right-of-way. The new tree plantings would be subject to the following standard conditions pursuant to Section 12.40.150 of the Daly City Municipal Code:

Page 667 of 1462 ends

141 3rd Avenue Residential 39 Initial Study
City of Daly City January 2023
• New tree plantings on private property that result from use permits, zone changes, subdivisions and related activities shall require a one-year establishment period to ensure the health and vigor of the tree. Establishment period will commence upon city's acceptance of the planting. Tree replacement shall be required if the tree dies during the establishment period. A new establishment period will be determined at the time of replanting. • All trees planted by property owners or contractors shall be inspected by a city representative prior to planting and planted in accordance with current city planting specifications.

The project would be in compliance with the City’s policies regarding tree planting and therefore, would have a less than significant impact. (Less than Significant Impact) Impact BIO-6: The project would not conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan. (No Impact) The project site is not within the boundaries of the San Bruno Mountain HCP or any other conservation plan. Therefore, the project would not conflict with the provisions of an adopted Habitat Conservation Plan or other approved conservation plan. (No Impact)

Page 668 of 1462 ends

141 3rd Avenue Residential 40 Initial Study
City of Daly City January 2023

CULTURAL RESOURCES
The following discussion is based, in part, on a Historic Resources Evaluation prepared for the project by TreanorHL (Treanor) in January 2021. A copy of the report is included as Appendix B of this Initial Study.

4.5.1 Environmental Setting
Regulatory Framework
Federal and State
National Historic Preservation Act
Federal protection is legislated by the National Historic Preservation Act of 1966 (NHPA) and the Archaeological Resource Protection Act of 1979. These laws maintain processes for determination of the effects on historical properties eligible for listing in the National Register of Historic Places (NRHP). Section 106 of the NHPA and related regulations (36 Code of Federal Regulations [CFR] Part 800) constitute the primary federal regulatory framework guiding cultural resources investigations and require consideration of effects on properties that are listed or eligible for listing in the NRHP. Impacts to properties listed in the NRHP must be evaluated under CEQA.

California Register of Historical Resources
The California Register of Historical Resources (CRHR) is administered by the State Office of Historic Preservation and encourages protection of resources of architectural, historical, archeological, and cultural significance. The CRHR identifies historic resources for state and local planning purposes and affords protections under CEQA. Under Public Resources Code Section 5024.1(c), a resource may be eligible for listing in the CRHR if it meets any of the NRHP criteria.13 Historical resources eligible for listing in the CRHR must meet the significance criteria described previously and retain enough of their historic character or appearance to be recognizable as historical resources and to convey the reasons for their significance. A resource that has lost its historic character or appearance may still have sufficient integrity for the CRHR if it maintains the potential to yield significant scientific or historical information or specific data.

The concept of integrity is essential to identifying the important physical characteristics of historical resources and, therefore, in evaluating adverse changes to them. Integrity is defined as “the authenticity of a historical resource’s physical identity evidenced by the survival of characteristics that existed during the resource’s period of significance.” The processes of determining integrity are similar for both the CRHR and NRHP and use the same seven variables or aspects to define integrity that are used to evaluate a resource’s eligibility for listing. These seven characteristics include 1) location, 2) design, 3) setting, 4) materials, 5) workmanship, 6) feeling, and 7) association. 13 California Office of Historic Preservation. “CEQA Guidelines Section 15064.5(a)(3) and California Office of Historic Preservation Technical Assistance Series #6.” Accessed November 17, 2020. http://www.ohp.parks.ca.gov/pages/1069/files/technical%20assistance%20bulletin%206%202011%20update.pdf.

Page 669 of 1462 ends

141 3rd Avenue Residential 41 Initial Study
City of Daly City January 2023
Senate Bill 18
The intent of SB 18 is to aid in the protection of traditional tribal cultural places through local land use planning by requiring city governments to consult with California Native American tribes on projects which include adoption or amendment of general plans (defined in Government Code Section 65300 et seq.) and specific plans (defined in Government Code Section 65450 et seq.). SB 18 requires local governments to consult with tribes prior to making certain planning decisions and to provide notice to tribes at certain key points in the planning process.

California Native American Historical, Cultural, and Sacred Sites Act The California Native American Historical, Cultural, and Sacred Sites Act applies to both state and private lands. The act requires that upon discovery of human remains, construction or excavation activity must cease, and the county coroner be notified.

Public Resources Code Sections 5097 and 5097.98
Section 15064.5 of the CEQA Guidelines specifies procedures to be used in the event of an unexpected discovery of Native American human remains on non-federal land. These procedures are outlined in Public Resources Code Sections 5097 and 5097.98. These codes protect such remains from disturbance, vandalism, and inadvertent destruction, establish procedures to be implemented if Native American skeletal remains are discovered during construction of a project, and establish the Native American Heritage Commission (NAHC) as the authority to resolve disputes regarding disposition of such remains.

Pursuant to Public Resources Code Section 5097.98, in the event of human remains discovery, no further disturbance is allowed until the county coroner has made the necessary findings regarding the origin and disposition of the remains. If the remains are of a Native American, the county coroner must notify the NAHC. The NAHC then notifies those persons most likely to be related to the Native American remains. The code section also stipulates the procedures that the descendants may follow for treating or disposing of the remains and associated grave goods.

Daly City 2030 General Plan
The General Plan includes policies for the purpose of avoiding or mitigating impacts resulting from development projects within the City. The following policies are specific to cultural resources and are applicable to the proposed project.

Policy/Task Description
Policy LU-19.1 Archeological resources should be preserved where possible.

Task LU-19.1 Archeological resources are a valuable educational resource for the residents of the city. Every effort should be made to preserve them in their natural state when found or be excavated by professional archeologists for display in a museum.

Policy RME-19 Undertake measures to protect and preserve historic and archaeological resources.

Task RME-19.1 Comply with State statues related to historical and archaeological resources.

Page 670 of 1462 ends

141 3rd Avenue Residential 42 Initial Study
City of Daly City January 2023
Task RME-19.1 Serve as a leader in historic preservation by preserving, restoring, and reusing City-owned historic resources where feasible.

Existing Conditions
The project site has not been identified on any national, state, county, or city historic resources inventory. Treanor prepared a Historic Resources Evaluation to determine whether the existing single-family house on the project site is eligible for listing as a historic resource. Treanor conducted an online records search as well as a site visit on December 9, 2020 to assess the history of the project site. Their findings are summarized below.

The single-family house on the project site was constructed circa 1908. A series of greenhouses, a small one-story accessory structure, and a two-story water tank were developed by 1926 to the east and south of the single-family house. A boiler house for heating the greenhouses was constructed in 1946. The greenhouses were removed by 1980 and this portion of the project site has remained vacant since that time.

The project site was associated with Italian-immigrant Valentino Tosetti from at least 1920 to 1945.

Although Tosetti sold the property in 1940, it is possible that he continued to rent or operate the greenhouses through the 1940s. Flower growing was a highly profitable industry in the Daly City area in the early 20th century and could be considered a historically significant event on a local level.

Italian American growers were a leading group in the industry, founding the San Francisco Growers Association in 1923. The project sites association with the Italian flower growers in Daly City could make the project site eligible for listing on the CRHR. However, the project site does not retain any integrity of this historic association given that the greenhouses and associated accessory structures were removed after 1975.

Although the single-family house was constructed circa 1908, the house is of common construction and materials with no notable or significant attributes. The house does not embody the distinctive characteristics of an architectural style and is not associated with any significant design professionals. Therefore, the project site is not eligible for listing on the CRHR and there are no historic resources on-site.

4.5.2 Impact Discussion
Potentially
Significant
Impact
Less than
Significant
with Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
1) Cause a substantial adverse change in the
significance of a historical resource pursuant
to CEQA Guidelines Section 15064.5?
2) Cause a substantial adverse change in the
significance of an archaeological resource
pursuant to CEQA Guidelines Section
15064.5?

Page 671 of 1462 ends

141 3rd Avenue Residential 43 Initial Study
City of Daly City January 2023
Potentially
Significant
Impact
Less than
Significant
with Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
3) Disturb any human remains, including those
interred outside of dedicated cemeteries?
Impact CUL-1: The project would not cause a substantial adverse change in the significance of a historical resource pursuant to CEQA Guidelines Section 15064.5. (No Impact)
The project site and adjacent properties have not been identified on any national, state, county, or city historic resources inventory. Despite the project site’s historic association with Italian flower growing in Daly City from approximately 1920 to 1945, the project site is not eligible for listing on the CRHR due to a lack of historic integrity. The single-family house is not eligible for listing on the CRHR due to a lack of architectural significance. Therefore, there are no historical resources on the project site. There are no historical resources adjacent to the site that would be affected by the project. (No Impact)
Impact CUL-2: The project would not cause a substantial adverse change in the significance of an archaeological resource pursuant to CEQA Guidelines Section 15064.5. (Less than Significant Impact with Mitigation Incorporated) According to the General Plan EIR, there are no known archaeological resources within the project site. However, project-related grading during construction could result in the discovery of unknown archaeological resources. The following mitigation measure would ensure that the proper precautions are taken during an inadvertent archaeological discovery.

Mitigation Measures: The project will be required to implement the following mitigation measures to reduce potential impacts to archaeological resources to a less than significant level:

MM CUL-2.1: Undiscovered Archaeological Resources. If evidence of an archaeological site or other suspected cultural resource as defined by CEQA Guideline Section 15064.5, including darkened soil representing past human activity (“midden”), that could conceal material remains (e.g., worked stone, worked bone, fired clay vessels, faunal bone, hearths, storage pits, or burials) is discovered during construction related earth-moving activities, all ground-disturbing activity within 100 feet of the resources shall be halted and the City’s Planning Manager shall be notified. The project sponsor shall hire a qualified archaeologist to conduct a field investigation. The City’s Planning Manager shall consult with the archaeologist to assess the significance of the find. Impacts to any significant resources shall be mitigated to a less-than-significant level through data recovery or other methods determined adequate by a qualified archaeologist and that are consistent with the Secretary of the Interior’s Standards for Archaeological documentation. Any identified cultural resources shall be recorded on the appropriate DPR 523 (A-J) form and filed with the NWIC.

Page 672 of 1462 ends

141 3rd Avenue Residential 44 Initial Study
City of Daly City January 2023
MM CUL-2.2: Report of Archaeological Resources. If archaeological resources are identified, a final report summarizing the discovery of cultural materials shall be submitted to the City’s Planning Manager prior to issuance of certificate of occupancy. This report shall contain a description of the mitigation program that was implemented and its results, including a description of the monitoring and testing program, a list of the resources found and conclusion, and a description of the disposition/curation of the resources.

With implementation of MM CUL-2.1 and MM CUL-2.2, impacts to any incidental discoveries of archaeological resources would be reduced to a less than significant level. (Less than Significant Impact with Mitigation Incorporated)
Impact CUL-3: The project would not disturb any human remains, including those interred outside of dedicated cemeteries. (Less than Significant Impact with Mitigation Incorporated)
As described above, the site has no known archaeological resources, including human remains. In the unlikely event human remains are unearthed during project construction, damage to or destruction of significant archaeological remains would be a potentially significant impact.

Mitigation Measures: The project will be required to implement the following mitigation measure to reduce potential impacts to buried human remains to a less than significant level:

MM CUL-3.1: Human Remains. If human remains are discovered during project construction, all ground-disturbing activity within 100 feet of the resources shall be halted and the City’s Planning Manager and the San Mateo County coroner shall be notified immediately, according to Section 5097.98 of the State Public Resources Code and Section 7050.5 of California’s Health and Safety Code. If the remains are determined by the County coroner to be Native American, the Native American Heritage Commission (NAHC) shall be notified within 24 hours, and the guidelines of the NAHC shall be adhered to in the treatment and disposition of the remains. The project sponsor shall also retain a professional archaeologist with Native American burial experience to conduct a field investigation of the specific site and consult with the Most Likely Descendant, if any, identified by the NAHC. As necessary, the archaeologist may provide professional assistance to the Most Likely Descendant, including the excavation and removal of the human remains. The City of Daly City shall be responsible for approval of recommended mitigation as it deems appropriate, taking account of the provisions of State law, as set forth in CEQA Guidelines section 15064.5(e) and Public Resources Code section 5097.98. The project sponsor shall implement approved mitigation, to be verified by the City of Daly City, before the resumption of ground-disturbing activities within 100 feet of where the remains were discovered.

Page 673 of 1462 ends

141 3rd Avenue Residential 45 Initial Study
City of Daly City January 2023
With implementation of MM CUL-3.1, any potential impacts from incidental discoveries of human remains would be reduced to a less than significant level. (Less than Significant Impact with Mitigation Incorporated)

Page 674 of 1462 ends

141 3rd Avenue Residential 46 Initial Study
City of Daly City January 2023
ENERGY

4.6.1 Environmental Setting
Regulatory Framework
Federal and State
Energy Star and Fuel Efficiency
At the federal level, energy standards set by the EPA apply to numerous consumer products and appliances (e.g., the EnergyStar™ program). The EPA also sets fuel efficiency standards for automobiles and other modes of transportation.

Renewables Portfolio Standard Program
In 2002, California established its Renewables Portfolio Standard Program, with the goal of increasing the percentage of renewable energy in the state's electricity mix to 20 percent of retail sales by 2010. Governor Schwarzenegger issued Executive Order (EO) S-3-05, requiring statewide emissions reductions to 80 percent below 1990 levels by 2050. In 2008, EO S-14-08 was signed into law, requiring retail sellers of electricity serve 33 percent of their load with renewable energy by 2020. In October 2015, Governor Brown signed SB 350 to codify California’s climate and clean energy goals. A key provision of SB 350 requires retail sellers and publicly owned utilities to procure 50 percent of their electricity from renewable sources by 2030. SB 100, passed in 2018, requires 100 percent of electricity in California to be provided by 100 percent renewable and carbon-free sources by 2045.

Executive Order B-55-18 To Achieve Carbon Neutrality
In September 2018, Governor Brown issued an executive order, EO-B-55-18 To Achieve Carbon Neutrality, setting a statewide goal “to achieve carbon neutrality as soon as possible, and no later than 2045, and achieve and maintain net negative emissions thereafter.” The executive order requires CARB to “ensure future Scoping Plans identify and recommend measures to achieve the carbon neutrality goal.” EO-B-55-18 supplements EO S-3-05 by requiring not only emissions reductions, but also that, by no later than 2045, the remaining emissions be offset by equivalent net removals of CO2 from the atmosphere through sequestration.

California Building Standards Code
The Energy Efficiency Standards for Residential and Nonresidential Buildings, as specified in Title 24, Part 6 of the California Code of Regulations (Title 24), was established in 1978 in response to a legislative mandate to reduce California’s energy consumption. Title 24 is updated approximately every three years.14 Compliance with Title 24 is mandatory at the time new building permits are issued by city and county governments.15
14 California Building Standards Commission. “California Building Standards Code.” Accessed November 17, 2020. https://www.dgs.ca.gov/BSC/Codes#@ViewBag.JumpTo. 15 California Energy Commission (CEC). “2019 Building Energy Efficiency Standards.” Accessed November 17, 2020. https://www.energy.ca.gov/programs-and-topics/programs/building-energy-efficiency-standards/2019- building-energy-efficiency.

Page 675 of 1462 ends

141 3rd Avenue Residential 47 Initial Study
City of Daly City January 2023
California Green Building Standards Code (CALGreen)
CALGreen establishes mandatory green building standards for buildings in California. CALGreen was developed to reduce GHG emissions from buildings, promote environmentally responsible and healthier places to live and work, reduce energy and water consumption, and respond to state environmental directives. CALGreen covers five categories: planning and design, energy efficiency, water efficiency and conservation, material and resource efficiency, and indoor environmental quality. CALGreen requires that construction projects recycle or salvage 65 percent of non-hazardous construction and demolition waste.

Advanced Clean Cars Program
CARB adopted the Advanced Clean Cars program in 2012 in coordination with the EPA and National Highway Traffic Safety Administration. The program combines the control of smogcausing pollutants and GHG emissions into a single coordinated set of requirements for vehicle model years 2015 through 2025. The program promotes development of environmentally superior passenger cars and other vehicles, as well as saving the consumer money through fuel savings.16 Local
Daly City 2030 General Plan
The General Plan includes policies for the purpose of avoiding or mitigating impacts resulting from development projects within the City. The following policies are specific to energy and are applicable to the proposed project.

Policy/Task Description
Policy HE-25 Mandate the inclusion of green building techniques into most new construction.

Task HE-28.2 Adopt progressive energy efficiency strategies similar to those adopted by the California Public Utilities Commission:

1. All new residential construction in California will be zero net energy by 2020;

2. All new commercial construction in California will be zero net energy by 2030;

3. Heating, ventilation, and air conditioning (HVAC) will be transformed to ensure that its energy performance is optimal for California’s climate; and

4. All eligible low-income customers will be given the opportunity to participate in the low-income energy efficiency program by 2020.

Daly City’s Green Vision
Daly City’s Green Vision, A Climate Action Plan (CAP) for 2011-2020 and Beyond, was adopted in December 2010. Daly City’s Green Vision guides the City towards a sustainable future that reduces GHG emissions from current levels, while promoting economic prosperity for present and future generations. The Green Vision identifies ten goals and seeks to achieve these goals through cost16 California Air Resources Board. “The Advanced Clean Cars Program.” Accessed November 17, 2020. https://www.arb.ca.gov/msprog/acc/acc.htm.

Page 676 of 1462 ends

141 3rd Avenue Residential 48 Initial Study
City of Daly City January 2023
effective strategies by the year 2020. The GHG reduction goals include adopting a general plan with measurable policies for sustainable development, reducing energy use in buildings, reducing transportation emissions, reducing solid waste disposal, and GHG emissions reductions from municipal operations. Daly City completed an update to the General Plan which incorporated these goals in March 2013.

Existing Conditions
Total energy usage in California was approximately 6,957 trillion British thermal units (Btu) in the year 2020, the most recent year for which this data was available.17 Out of the 50 states, California is ranked second in total energy consumption and 49th in energy consumption per capita. The breakdown by sector was approximately 22 percent (1,508 trillion Btu) for residential uses, 19 percent (1,358 trillion Btu) for commercial uses, 25 percent (1,701 trillion Btu) for industrial uses, and 34 percent (2,356 trillion Btu) for transportation.18 This energy is primarily supplied in the form of natural gas, petroleum, biomass, nuclear electric power, and hydroelectric power.

Electricity
Electricity in San Mateo County in 2021 was consumed primarily by the non-residential sector (60 percent), with the residential sector consuming 40 percent. In 2020, a total of approximately 4,157 GWh of electricity was consumed in San Mateo County.19
Peninsula Clean Energy (PCE) is a public and locally controlled electricity provider for the County of San Mateo. Electricity provided by PCE is delivered through PG&E transmission lines.

Commercial and residential customers in San Mateo County are included in the PCE service area and can choose to have 50 to 100 percent of their electricity supplied from renewable and carbon-free sources. Customers are automatically enrolled in the ECO plus plan, which generates its electricity from 100 percent carbon-free sources, with at least 50 percent from renewable sources. Customers have the option to enroll in the ECO100 plan, which generates its electricity from 100 percent carbon-free, renewable sources. 20
Fuel for Motor Vehicles
In 2019, 15.4 billion gallons of gasoline were sold in California.21 The average fuel economy for light-duty vehicles (autos, pickups, vans, and sport utility vehicles) in the United States has steadily increased from about 13.1 miles per gallon (mpg) in the mid-1970s to 25.4 mpg in 2020.22 Federal 17 United States Energy Information Administration. “State Profile and Energy Estimates, 2020.” Accessed October 26, 2022. https://www.eia.gov/state/?sid=CA#tabs-2. 18 Ibid 19 California Energy Commission. Energy Consumption Data Management System. “Electricity Consumption by County.” Accessed December 21, 2022. http://ecdms.energy.ca.gov/elecbycounty.aspx. 20 Sources: 1) Peninsula Clean Energy. “Frequently Asked Questions.” Accessed April 10, 2021. https://www.peninsulacleanenergy.com/faq/. 2) Peninsula Clean Energy. “Energy Choices.” Accessed April 10, 2021. https://www.peninsulacleanenergy.com/faq/. 21 California Department of Tax and Fee Administration. “Net Taxable Gasoline Gallons.” Accessed December 8, 2020. https://www.cdtfa.ca.gov/dataportal/dataset.htm?url=VehicleTaxableFuelDist. 22 United States Environmental Protection Agency. “The 2021 EPA Automotive Trends Report: Greenhouse Gas Emissions, Fuel Economy, and Technology since 1975.” November 2021. https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P1010U68.pdf

Page 677 of 1462 ends

141 3rd Avenue Residential 49 Initial Study
City of Daly City January 2023
fuel economy standards have changed substantially since the Energy Independence and Security Act was passed in 2007. That standard, which originally mandated a national fuel economy standard of 35 miles per gallon by the year 2020, was updated in April 2022 to require all cars and light duty trucks achieve an overall industry average fuel economy of 49 mpg by model year 2026. 23,24

4.6.2 Impact Discussion
Potentially
Significant
Impact
Less than
Significant
with Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
1) Result in a potentially significant
environmental impact due to wasteful,
inefficient, or unnecessary consumption of
energy resources, during project construction
or operation?
2) Conflict with or obstruct a state or local plan
for renewable energy or energy efficiency?
Impact EN-1: The project would not result in a potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources, during project construction or operation. (Less than Significant Impact) Energy would be consumed during both the construction and operational phases of the proposed project. Energy requirements throughout the construction phase include energy for the manufacturing and transportation of building materials, preparation of the site, and operation of construction equipment. The operation of the project would consume electricity for building heating and cooling, lighting, cooking, appliances, and water heating. In compliance with the City’s Reach Code, the project would be 100 percent electric and would not utilize any natural gas. Fuel would also be consumed during vehicle trips to and from the project site.

The project proposes to be constructed in compliance with the 2019 California Green Building Standards Code (Title 24, Part 11 or CALGreen), which requires features that reduce water and energy consumption. The project proposes rooftop solar panels on all dwelling units. In compliance with CALGreen, the project would also recycle or salvage 65 percent of non-hazardous construction and demolition waste.

Given the infill location of the project site, the existing pedestrian, bicycle, and transit services in the project area, and the project’s compliance with the 2019 CALGreen Code, the proposed project would not result in a wasteful, inefficient, and unnecessary consumption of energy. (Less Than Significant Impact)
23 United States Department of Energy. Energy Independence & Security Act of 2007. Accessed October 26, 2022. http://www.afdc.energy.gov/laws/eisa. 24 United States Department of Transportation. USDOT Announces New Vehicle Fuel Economy Standards for Model Year 2024-2026.” Accessed October 26, 2022. https://www.nhtsa.gov/press-releases/usdot-announces-newvehicle-fuel-economy-standards-model-year-2024-2026

Page 678 of 1462 ends

141 3rd Avenue Residential 50 Initial Study
City of Daly City January 2023
Impact EN-2: The project would not conflict with or obstruct a state or local plan for renewable energy or energy efficiency. (Less than Significant Impact) According to the 2019 Integrated Energy Policy Report, the state is working towards decarbonizing the energy system and moving towards a 100 percent carbon-free system by 2045.25 The project would obtain energy from the PCE which provides 50 to 100 percent carbon free electricity to the project site. The project also proposes rooftop solar panels on all dwelling units. The project would result in an increase in demand on existing energy resources; however, the project is required to comply with applicable regulations and City policies that would conserve energy and water, and reduce fuel consumption and waste generation. For these reasons, the proposed project would not conflict with or obstruct a state or local plan for renewable energy or energy efficiency. (Less Than Significant Impact)
25 California Energy Commission. 2019 Integrated Energy Policy Report. 2019.

Page 679 of 1462 ends

141 3rd Avenue Residential 51 Initial Study
City of Daly City January 2023

GEOLOGY AND SOILS

4.7.1 Environmental Setting
Regulatory Framework
State
Alquist-Priolo Earthquake Fault Zoning Act
The Alquist-Priolo Earthquake Fault Zoning Act was passed following the 1971 San Fernando earthquake. The act regulates development in California near known active faults due to hazards associated with surface fault ruptures. Alquist-Priolo maps are distributed to affected cities, counties, and state agencies for their use in planning and controlling new construction. Areas within an Alquist-Priolo Earthquake Fault Zone require special studies to evaluate the potential for surface rupture to ensure that no structures intended for human occupancy are constructed across an active fault.

Seismic Hazards Mapping Act
The Seismic Hazards Mapping Act (SHMA) was passed in 1990 following the 1989 Loma Prieta earthquake. The SHMA directs the California Geological Survey (CGS) to identify and map areas prone to liquefaction, earthquake-induced landslides, and amplified ground shaking. CGS has completed seismic hazard mapping for the portions of California most susceptible to liquefaction, landslides, and ground shaking, including the central San Francisco Bay Area. The SHMA requires that agencies only approve projects in seismic hazard zones following site-specific geotechnical investigations to determine if the seismic hazard is present and identify measures to reduce earthquake-related hazards.

California Building Standards Code
The California Building Code (CBC) prescribes standards for constructing safe buildings. The CBC contains provisions for earthquake safety based on factors including occupancy type, soil and rock profile, ground strength, and distance to seismic sources. The CBC requires that a site-specific geotechnical investigation report be prepared for most development projects to evaluate seismic and geologic conditions such as surface fault ruptures, ground shaking, liquefaction, differential settlement, lateral spreading, expansive soils, and slope stability. The CBC is updated every three years.

California Division of Occupational Safety and Health Regulations Excavation, shoring, and trenching activities during construction are subject to occupational safety standards for stabilization by the California Department of Industrial Relations, Division of Occupational Safety and Health (Cal/OSHA) under Title 8 of the California Code of Regulations and Excavation Rules. These regulations minimize the potential for instability and collapse that could injure construction workers on the site.

Page 680 of 1462 ends

141 3rd Avenue Residential 52 Initial Study
City of Daly City January 2023
Public Resources Code Section 5097.5
Paleontological resources are the fossilized remains of organisms from prehistoric environments found in geologic strata. They range from mammoth and dinosaur bones to impressions of ancient animals and plants, trace remains, and microfossils. These materials are valued for the information they yield about the history of the earth and its past ecological settings. California Public Resources Code Section 5097.5 specifies that unauthorized removal of a paleontological resource is a misdemeanor. Under the CEQA Guidelines, a project would have a significant impact on paleontological resources if it would disturb or destroy a unique paleontological resource or site or unique geologic feature.

Local
Daly City 2030 General Plan
The General Plan includes policies for the purpose of avoiding or mitigating impacts resulting from development projects within the City. The following policies are specific to geology and soils and are applicable to the proposed project.

Policy/Task Description
Policy SE-1.1 Continue to investigate the potential for seismic and geologic hazards as part of the development review process and maintain this information for the public record.

Update Safety Element maps as appropriate.

Policy SE-1.2 Require site specific geotechnical, soils, and foundation reports for development proposed on sites identified in the Safety Element and its Geologic and Hazard Maps as having moderate or high potential for ground failure.

Policy SE-1.3 Permit development in areas of potential geologic hazards only where it can be demonstrated that the project will not be endangered by, nor contribute to, the hazardous condition on the site or on adjacent properties. All proposed development is subject to the City's Zoning Ordinance and Building Codes.

Policy SE-1.4 Prohibit development—including any land alteration, grading for roads and structural development—in areas of slope instability or other geologic concerns unless mitigation measures are taken to limit potential damage to levels of acceptable risk.

Policy SE-6.1 Regulate building construction practices to prevent hazardous structures and assure structural safety. Measures may include requiring conformance to an accepted set of construction standards, authorizing inspection of suspected dangerous structures, discontinuing improper construction activities, and eliminating hazardous conditions.

Existing Conditions
Regional Geological Conditions
The project site and the surrounding parts of Daly City lie on the San Francisco Peninsula which is set within the Coast Ranges Geomorphic Province. The San Francisco Peninsula lies north of the Santa Cruz Mountains where it is flanked by the Pacific Ocean and San Francisco Bay to the west and east, respectively. The Coast Ranges Geomorphic Province is typified by northwest-southeast

Page 681 of 1462 ends

141 3rd Avenue Residential 53 Initial Study
City of Daly City January 2023
trending mountain ranges that stretch from the Oregon border in the north to Point Conception in the south.

On-Site Geological Conditions
Seismicity
There are several major fault zones present in the Bay Area. The closest of which is the San Andreas Fault Line, approximately 2.12 miles southwest of the project site. According to the City’s General Plan EIR, Daly City would be subject to violent levels of shaking in the event of an earthquake.

Liquefaction
Liquefaction is a result of seismic activity characterized by the transformation of loose watersaturated soils from a solid state to a liquid state during ground shaking. The project site has a low potential for liquefaction.26
Landslide and Lateral Spreading
The potential for landslides or downslope movement is dependent on slope geometry, subsurface soil and groundwater conditions, prior slope behavior, and severity of ground shaking. According to the General Plan EIR, there is a low potential for landslide risk in the project area. The project site is labeled “Flatland – Not Landslide Prone”.

Lateral spreading is a type of ground failure related to liquefaction. It consists of the horizontal displacement of flat-lying soil material toward an open face, such as the steep bank of a stream channel. The project site does not contain any features susceptible to lateral spreading.

4.7.2 Impact Discussion
Potentially
Significant
Impact
Less than
Significant
with Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
1) Directly or indirectly cause potential
substantial adverse effects, including the risk
of loss, injury, or death involving:
- Rupture of a known earthquake fault, as
delineated on the most recent AlquistPriolo Earthquake Fault Zoning Map issued by the State Geologist for the area
or based on other substantial evidence of a
known fault (refer to Division of Mines
and Geology Special Publication 42)?
- Strong seismic ground shaking?
- Seismic-related ground failure, including
liquefaction?
26 U.S. Geological Survey. “Map of Quaternary Deposits and Liquefaction Susceptibility in the Central San Francisco Bay Region, California: Liquefaction Susceptibility”. Map. 2006.

Page 682 of 1462 ends

141 3rd Avenue Residential 54 Initial Study
City of Daly City January 2023
Potentially
Significant
Impact
Less than
Significant
with Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
- Landslides?
2) Result in substantial soil erosion or the loss of
topsoil?
3) Be located on a geologic unit or soil that is
unstable, or that would become unstable as a
result of the project, and potentially result in
on- or off-site landslide, lateral spreading,
subsidence, liquefaction, or collapse?
4) Be located on expansive soil, as defined in the
current California Building Code, creating
substantial direct or indirect risks to life or
property?
5) Have soils incapable of adequately supporting
the use of septic tanks or alternative
wastewater disposal systems where sewers are
not available for the disposal of wastewater?
6) Directly or indirectly destroy a unique
paleontological resource or site or unique
geological feature?
Impact GEO-1: The project would not directly or indirectly cause potential substantial adverse effects, including the risk of loss, injury, or death involving rupture of a known earthquake fault, as delineated on the most recent Alquist-Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault; strong seismic ground shaking; seismic-related ground failure, including liquefaction; or landslides. (Less than Significant Impact)
An earthquake of moderate to high magnitude generated within the San Francisco Bay Region could cause considerable ground shaking at the site. Therefore, the project would conform to the standard engineering and building practices and techniques specified in the CBC. The proposed buildings, streets, and utilities would be designed and constructed in accordance with the recommendations of a geotechnical report prepared for the site, which identifies the specific design features related to geologic and seismic conditions.

As described in Section 4.7.1.2 Existing Conditions, the project site is in an area of low risk for liquefaction, landslides, and lateral spreading. The project, in conformance with applicable regulations and with the implementation of the recommendations in the geotechnical report, would not result in significant impacts from seismicity and seismic-related hazards. (Less Than Significant Impact)

Page 683 of 1462 ends

141 3rd Avenue Residential 55 Initial Study
City of Daly City January 2023
Impact GEO-2: The project would not result in substantial soil erosion or the loss of topsoil. (Less than Significant Impact)
Daly City requires project applicants to submit a stormwater management plan that illustrates full compliance with the Municipal Regional Stormwater NPDES Permit (MRP). This will require the project to include stormwater controls, including site design measures, source controls, treatment measures, low impact development, hydromodification management, and construction best management practices to limit erosion. These measures would help to control erosion and are discussed further in Section 4.9 Hydrology and Water Quality. (Less Than Significant Impact) Impact GEO-3: The project would not be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the project, and potentially result in on- or off-site landslide, lateral spreading, subsidence, liquefaction, or collapse. (Less than Significant Impact)
As discussed above in Impact GEO-1, the project site has a low potential for liquefaction and related hazards. A geotechnical report would be prepared for the project to assess current soil conditions and recommend site specific designs. The proposed construction would not result in instability of soil or another geologic unit on-site or off-site. (Less than Significant Impact) Impact GEO-4: The project would not be located on expansive soil, as defined in the current California Building Code, creating substantial direct or indirect risks to life or property. (Less than Significant Impact)
The project site is not located within an area identified as having a high soil expansion potential.27 The geotechnical report would address expansive soil potential. The proposed project would not create a substantial risk to life or property due to expansive soils. (Less than Significant Impacts) Impact GEO-5: The project would not have soils incapable of adequately supporting the use of septic tanks or alternative wastewater disposal systems where sewers are not available for the disposal of wastewater. (No Impact)
The proposed project would be served by existing municipal sanitary sewers. There would be no need for alternative wastewater disposal systems, such as septic tanks, on-site. Therefore, there would be no impact due to soils incapable of supporting alternative wastewater disposal systems. (No Impact)
Impact GEO-6: The project would not directly or indirectly destroy a unique paleontological resource or site or unique geological feature. (Less than Significant Impact with Mitigation Incorporated)
The project site is not known to contain any subsurface paleontological resources or geological features. Although unlikely, grading of the project site could result in the disturbance of previously undiscovered paleontological resources. The following mitigation measure would ensure that the proper precautions are taken during an inadvertent paleontological discovery. 27 City of Daly City. General Plan Update EIR. Figure 3.5-6 Soil Erosion and Shrink Swell Potential. October 2012.

Page 684 of 1462 ends

141 3rd Avenue Residential 56 Initial Study
City of Daly City January 2023
Mitigation Measure: The project will be required to implement the following mitigation measure to reduce potential impacts to paleontological resources to a less than significant level:

MM GEO-6.1: Unique Paleontological and/or Geologic Features and Reporting. Should a unique paleontological resource or site or unique geological feature be identified at the project site during any phase of construction, all ground disturbing activities within 25 feet shall cease and the City’s Planning Manager notified immediately.

A qualified paleontologist shall evaluate the find and prescribe mitigation measures to reduce impacts to a less than significant level. Work may proceed on other parts of the project site while mitigation for paleontological resources or geologic features is implemented. Upon completion of the paleontological assessment, a report shall be submitted to the City and, if paleontological materials are recovered, a paleontological repository, such as the University of California Museum of Paleontology.

With implementation of MM GEO-6.1, impacts to undiscovered paleontological resources would be reduced to a less than significant level. (Less than Significant with Mitigation Incorporated)

Page 685 of 1462 ends

141 3rd Avenue Residential 57 Initial Study
City of Daly City January 2023

GREENHOUSE GAS EMISSIONS

4.8.1 Environmental Setting
Background Information
Gases that trap heat in the atmosphere, GHGs, regulate the earth’s temperature. This phenomenon, known as the greenhouse effect, is responsible for maintaining a habitable climate. In GHG emission inventories, the weight of each gas is multiplied by its global warming potential (GWP) and is measured in units of CO2 equivalents (CO2e). The most common GHGs are carbon dioxide (CO2) and water vapor but there are also several others, most importantly methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6). These are released into the earth’s atmosphere through a variety of natural processes and human activities.

Sources of GHGs are generally as follows:
• CO2 and N2O are byproducts of fossil fuel combustion. • N2O is associated with agricultural operations such as fertilization of crops. • CH4 is commonly created by off-gassing from agricultural practices (e.g., keeping livestock) and landfill operations.
• Chlorofluorocarbons (CFCs) were widely used as refrigerants, propellants, and cleaning solvents, but their production has been stopped by international treaty. • HFCs are now used as a substitute for CFCs in refrigeration and cooling. • PFCs and SF6 emissions are commonly created by industries such as aluminum production and semiconductor manufacturing.

An expanding body of scientific research supports the theory that global climate change is currently causing changes in weather patterns, average sea level, ocean acidification, chemical reaction rates, and precipitation rates, and that it will increasingly do so in the future. The climate and several naturally occurring resources within California are adversely affected by the global warming trend.

Increased precipitation and sea level rise will increase coastal flooding, saltwater intrusion, and degradation of wetlands. Mass migration and/or loss of plant and animal species could also occur.

Potential effects of global climate change that could adversely affect human health include more extreme heat waves and heat-related stress; an increase in climate-sensitive diseases; more frequent and intense natural disasters such as flooding, hurricanes and drought; and increased levels of air pollution.

Regulatory Framework
State
Assembly Bill 32
Under the California Global Warming Solutions Act, also known as AB 32, CARB established a statewide GHG emissions cap for 2020, adopted mandatory reporting rules for significant sources of GHGs, and adopted a comprehensive plan, known as the Climate Change Scoping Plan, identifying how emission reductions would be achieved from significant GHG sources.

Page 686 of 1462 ends

141 3rd Avenue Residential 58 Initial Study
City of Daly City January 2023
In 2016, SB 32 was signed into law, amending the California Global Warming Solution Act. SB 32, and accompanying Executive Order B-30-15, require CARB to ensure that statewide GHG emissions are reduced to 40 percent below the 1990 level by 2030. CARB updated its Climate Change Scoping Plan in December of 2017 to express the 2030 statewide target in terms of million metric tons of CO2e (MMTCO2e). Based on the emissions reductions directed by SB 32, the annual 2030 statewide target emissions level for California is 260 MMTCO2e.

Senate Bill 375
SB 375, known as the Sustainable Communities Strategy and Climate Protection Act, was signed into law in September 2008. SB 375 builds upon AB 32 by requiring CARB to develop regional GHG reduction targets for automobile and light truck sectors for 2020 and 2035. The per capita GHG emissions reduction targets for passenger vehicles in the San Francisco Bay Area include a seven percent reduction by 2020 and a 15 percent reduction by 2035.

Consistent with the requirements of SB 375, the Metropolitan Transportation Commission (MTC) partnered with the Association of Bay Area Governments (ABAG), BAAQMD, and the Bay Conservation and Development Commission to prepare the region’s Sustainable Communities Strategy (SCS) as part of the Regional Transportation Plan process. The SCS is referred to as Plan Bay Area 2040. Plan Bay Area 2040 establishes a course for reducing per capita GHG emissions through the promotion of compact, high-density, mixed-use neighborhoods near transit, particularly within identified Priority Development Areas (PDAs).

Regional and Local
2017 Clean Air Plan
To protect the climate, the 2017 CAP (prepared by BAAQMD) includes control measures designed to reduce emissions of methane and other super-GHGs that are potent climate pollutants in the nearterm, and to decrease emissions of carbon dioxide by reducing fossil fuel combustion.

CEQA Air Quality Guidelines
The BAAQMD CEQA Air Quality Guidelines are intended to serve as a guide for those who prepare or evaluate air quality impact analyses for projects and plans in the San Francisco Bay Area. The jurisdictions in the San Francisco Bay Area Air Basin utilize the thresholds and methodology for assessing GHG impacts developed by BAAQMD within the CEQA Air Quality Guidelines. The guidelines include information on legal requirements, BAAQMD rules, methods of analyzing impacts, and recommended mitigation measures.

Daly City 2030 General Plan
The General Plan includes policies for the purpose of avoiding or mitigating impacts resulting from development projects within the City. The following policies are specific to greenhouse gases and are applicable to the proposed project.

Page 687 of 1462 ends

141 3rd Avenue Residential 59 Initial Study
City of Daly City January 2023
Policies Description
Policy HE-24 Gradually increase energy and water efficiency standards for all new and existing housing while minimizing the costs of such standards.

Task HE24.1 Develop enhanced residential energy efficiency standards (Title 24, California Administrative Code) in all new residential construction which exceeds Statemandated requirements by five percent in 2015, ten percent in 2020, and twenty percent in 2030.

Policy HE-25 Mandate the inclusion of green building techniques into most new construction.

Policy HE-29 Promote alternative sources of energy in all homes.

Task HE29.1 Encourage, incentivize, or require all new major construction projects to pre-plumb for solar hot water and pre-wire for solar electric systems Daly City’s Green Vision
Daly City’s Green Vision, A Climate Action Plan (CAP) for 2011-2020 and Beyond, was adopted in December 2010. Daly City’s Green Vision guides the City towards a sustainable future that reduces GHG emissions from current levels, while promoting economic prosperity for present and future generations. The Green Vision identifies ten goals and seeks to achieve these goals through costeffective strategies by the year 2020. The GHG reduction goals include adopting a general plan with measurable policies for sustainable development, reducing energy use in buildings, reducing transportation emissions, reducing solid waste disposal, and GHG emissions reductions from municipal operations. Daly City completed an update to the General Plan which incorporated these goals in March 2013.

Daly City Municipal Code
Consistent with the goals of Daly City’s Green Vision, the City Council adopted the Green Building Standards Code in order to protect the environment and health of the community. Chapter 15.22 of the Municipal Code 15.22 incorporates the California Green Building Standards Code, 2019 edition, for the protection of the public health and safety of its inhabitants.

Daly City Reach Code
In April 2021, the City Council of Daly City adopted a reach code ordinance to electrify buildings and vehicles in new construction. The new requirements are intended to result in safer and more comfortable buildings, increase electric vehicle charging infrastructure, and reduce carbon emissions.

The ordinance requires all new buildings to be all-electric with some exceptions such as nonresidential buildings containing a commercial kitchen may contain non-electric cooking appliances.

The ordinance also requires electric vehicle charging infrastructure beyond that required in the 2019 California Green Building Standards Code.

Existing Conditions
Unlike emissions of criteria and toxic air pollutants, which have regional and local impacts, emissions of GHGs have a broader, global impact. Global warming is a process whereby GHGs accumulating in the upper atmosphere contribute to an increase in the temperature of the earth and

Page 688 of 1462 ends

141 3rd Avenue Residential 60 Initial Study
City of Daly City January 2023
changes in weather patterns. The existing single-family residence on the project site would result in limited GHG emissions.

4.8.2 Impact Discussion
Potentially
Significant
Impact
Less than
Significant
with Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
1) Generate greenhouse gas (GHG) emissions,
either directly or indirectly, that may have a
significant impact on the environment?
2) Conflict with an applicable plan, policy, or
regulation adopted for the purpose of reducing
the emissions of GHGs?
Thresholds of Significance
In April of 2022, BAAQMD updated its thresholds of significance for evaluating a project’s GHG impacts under CEQA. Under these updated thresholds, projects must meet either criteria A or B of the following:

A. Projects must include, at a minimum, the following project design elements:

1. Buildings
a. The project will not include natural gas appliances or natural gas plumbing (in both residential and nonresidential development).
b. The project will not result in any wasteful, inefficient, or unnecessary energy usage as determined by the analysis required under CEQA Section 21100(b)(3) and Section 15126.2(b) of the State CEQA Guidelines.

2. Transportation
a. Achieve a reduction in project-generated vehicle miles traveled (VMT) below the regional average consistent with the current version of the California Climate Change Scoping Plan (currently 15 percent) or meet a locally adopted Senate Bill 743 VMT target, reflecting the recommendations provided in the Governor’s Office of Planning and Research’s Technical Advisory on Evaluating Transportation Impacts in CEQA:
i. Residential projects: 15 percent below the existing VMT per capita ii. Office projects: 15 percent below the existing VMT per employee iii. Retail projects: no net increase in existing VMT
b. Achieve compliance with off-street electric vehicle requirements in the most recently adopted version of CALGreen Tier 2.

B. Be consistent with a local GHG reduction strategy that meets the criteria under State CEQA Guidelines Section 15183.5(b).

Page 689 of 1462 ends

141 3rd Avenue Residential 61 Initial Study
City of Daly City January 2023
Impact GHG-1: The project would not generate GHG emissions, either directly or indirectly, that may have a significant impact on the environment. (Less than Significant Impact)
Construction Emissions
GHG emissions associated with project construction activities (including operation of construction equipment, hauling truck trips, vendor truck trips, and worker trips) were estimated to be 107 MT of carbon dioxide equivalents (CO2e) during nine months of construction (refer to Appendix A). Neither the City nor BAAQMD have an adopted threshold of significance for construction-related GHG emissions, though BAAQMD recommends quantifying emissions and disclosing that GHG emissions would occur during construction.

BAAQMD also encourages the incorporation of best management practices, including recycling and reusing construction waste or demolition materials, and using local building materials of at least ten percent. The project, in compliance with CALGreen would recycle at least 65 percent of construction waste or demolition materials. Additionally, the project would limit equipment idling times either by shutting equipment off when not in use or reducing the maximum idling time to five minutes, as described in MM AIR-3.1. Thus, the project would not generate significant GHG emissions during construction. (Less than Significant Impact)
Operational Emissions
In April of 2022, BAAQMD updated its thresholds of significance for evaluating a project’s GHG impacts under CEQA. Under these recently updated thresholds, projects must demonstrate either A) specific building design and transportation elements or B) consistency with a local GHG reduction strategy. The City of Daly City does not currently have a certified GHG reduction strategy.

Consistent with the BAAQMD thresholds and the City’s Reach Code, the project would be 100 percent electric and would not utilize any natural gas. As described in Section 4.6 Energy, the project would not result in any wasteful, inefficient, or unnecessary energy usage. As discussed further in Section 4.17 Transportation, the project would result in a low number of VMT and thus, would not generate a significant amount of GHG emissions from automobiles. Each of the proposed townhomes would include one EV Ready Space28, in compliance with CALGreen. Additionally, the proposed townhome buildings would be built in accordance with the California Green Building Standards Code and would include rooftop solar panels on all dwelling units to further reduce its GHG impact.

Therefore, the project would result in a less than significant level of GHG emissions. (Less than Significant Impact)
Impact GHG-2: The project would not conflict with an applicable plan, policy, or regulation adopted for the purpose of reducing the emissions of GHGs. (Less than Significant Impact)
The project would be consistent with the City’s General Plan policies [specifically Policy HE-23 of increasing energy efficiency standards in new and existing housing developments], Green Vision, and the current CALGreen Code, which requires efficient windows, insulation, lighting, ventilation 28 EV Ready Space: A vehicle space which is provided with a branch circuit; any necessary raceways, both underground and/or surface mounted; to accommodate EV charging, terminating in a receptacle or a charger

Page 690 of 1462 ends

141 3rd Avenue Residential 62 Initial Study
City of Daly City January 2023
systems, and other features that reduce water and energy consumption. Compliance with the CALGreen Code would ensure the project incorporates various measures to reduce GHG emissions.

Consistent with the City’s Reach Code, the project would be 100 percent electric and would not utilize any natural gas. For this reason, the project would be consistent with applicable plans, policies, and regulations adopted for the purpose of reducing emissions of GHGs. (Less Than Significant Impact)

Page 691 of 1462 ends

141 3rd Avenue Residential 63 Initial Study
City of Daly City January 2023

HAZARDS AND HAZARDOUS MATERIALS
The following discussion is based, in part, on a Phase I Environmental Site Assessment (Phase I) prepared by AEI Consultants in October 2020 and a Phase II Subsurface Investigation (Phase II) prepared by Creative Environmental Solutions (ICES) in November 2020. Copies of these reports are included as Appendix C and Appendix D, respectively, of this Initial Study.

4.9.1 Environmental Setting
Regulatory Framework
Overview
The storage, use, generation, transport, and disposal of hazardous materials and waste are highly regulated under federal and state laws. In California, the EPA has granted most enforcement authority over federal hazardous materials regulations to the California Environmental Protection Agency (CalEPA). In turn, local agencies have been granted responsibility for implementation and enforcement of many hazardous materials regulations under the Certified Unified Program Agency (CUPA) program.

Worker health and safety and public safety are key issues when dealing with hazardous materials.

Proper handling and disposal of hazardous material is vital if it is disturbed during project construction. Cal/OSHA enforces state worker health and safety regulations related to construction activities. Regulations include exposure limits, requirements for protective clothing, and training requirements to prevent exposure to hazardous materials. Cal/OSHA also enforces occupational health and safety regulations specific to lead and asbestos investigations and abatement.

Federal and State
Federal Aviation Regulations Part 77
Federal Aviation Regulations, Part 77 Objects Affecting Navigable Airspace (FAR Part 77) sets forth standards and review requirements for protecting the airspace for safe aircraft operation, particularly by restricting the height of potential structures and minimizing other potential hazards (such as reflective surfaces, flashing lights, and electronic interference) to aircraft in flight. These regulations require that the Federal Aviation Administration (FAA) be notified of certain proposed construction projects located within an extended zone defined by an imaginary slope radiating outward for several miles from an airport’s runways, or which would otherwise stand at least 200 feet in height above the ground.

Comprehensive Environmental Response, Compensation, and Liability Act The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), commonly known as Superfund, was enacted by Congress on December 11, 1980. This law created a tax on the chemical and petroleum industries and provided broad federal authority to respond directly to releases or threatened releases of hazardous substances that may endanger public health or the environment. Over five years, $1.6 billion was collected and the tax went to a trust fund for cleaning

Page 692 of 1462 ends

141 3rd Avenue Residential 64 Initial Study
City of Daly City January 2023
up abandoned or uncontrolled hazardous waste sites. CERCLA accomplished the following objectives:
• Established prohibitions and requirements concerning closed and abandoned hazardous waste sites;
• Provided for liability of persons responsible for releases of hazardous waste at these sites; and
• Established a trust fund to provide for cleanup when no responsible party could be identified.

The law authorizes two kinds of response actions:
• Short-term removals, where actions may be taken to address releases or threatened releases requiring prompt response; and
• Long-term remedial response actions that permanently and significantly reduce the dangers associated with releases or threats of releases of hazardous substances that are serious, but not immediately life-threatening. These actions can be completed only at sites listed on the EPA’s National Priorities List.

CERCLA also enabled the revision of the National Contingency Plan (NCP). The NCP provided the guidelines and procedures needed to respond to releases and threatened releases of hazardous substances, pollutants, or contaminants. The NCP also established the National Priorities List.

CERCLA was amended by the Superfund Amendments and Reauthorization Act on October 17, 1986.29
Resource Conservation and Recovery Act
The Resource Conservation and Recovery Act (RCRA), enacted in 1976, is the principal federal law in the United States governing the disposal of solid waste and hazardous waste. RCRA gives the EPA the authority to control hazardous waste from the “cradle to the grave.” This includes the generation, transportation, treatment, storage, and disposal of hazardous waste. RCRA also sets forth a framework for the management of non-hazardous solid wastes.

The Federal Hazardous and Solid Waste Amendments (HSWA) are the 1984 amendments to RCRA that focused on waste minimization, phasing out land disposal of hazardous waste, and corrective action for releases. Some of the other mandates of this law include increased enforcement authority for the EPA, more stringent hazardous waste management standards, and a comprehensive underground storage tank program.30
29 United States Environmental Protection Agency. “Superfund: CERCLA Overview.” Accessed May 11, 2020. https://www.epa.gov/superfund/superfund-cercla-overview. 30 United States Environmental Protection Agency. “Summary of the Resource Conservation and Recovery Act.” Accessed May 11, 2020. https://www.epa.gov/laws-regulations/summary-resource-conservation-and-recovery-act.

Page 693 of 1462 ends

141 3rd Avenue Residential 65 Initial Study
City of Daly City January 2023
Government Code Section 65962.5
Section 65962.5 of the Government Code requires CalEPA to develop and update a list of hazardous waste and substances sites, known as the Cortese List. The Cortese List is used by state and local agencies and developers to comply with CEQA requirements. The Cortese List includes hazardous substance release sites identified by the Department of Toxic Substances Control (DTSC) and State Water Resources Control Board (SWRCB).31
Toxic Substances Control Act
The Toxic Substances Control Act (TSCA) of 1976 provides the EPA with authority to require reporting, record-keeping and testing requirements, and restrictions relating to chemical substances and/or mixtures. Certain substances are generally excluded from TSCA, including, among others, food, drugs, cosmetics, and pesticides. The TSCA addresses the production, importation, use, and disposal of specific chemicals including polychlorinated biphenyls (PCBs), asbestos, radon, and leadbased paint.

California Accidental Release Prevention Program
The California Accidental Release Prevention (CalARP) Program aims to prevent accidental releases of regulated hazardous materials that represent a potential hazard beyond the boundaries of a property. Facilities that are required to participate in the CalARP Program use or store specified quantities of toxic and flammable substances (hazardous materials) that can have off-site consequences if accidentally released. The San Mateo County Environmental Health Services Division reviews CalARP risk management plans as the CUPA.

Asbestos-Containing Materials
Friable asbestos is any asbestos-containing material (ACM) that, when dry, can easily be crumbled or pulverized to a powder by hand, allowing the asbestos particles to become airborne. Common examples of products that have been found to contain friable asbestos include acoustical ceilings, plaster, wallboard, and thermal insulation for water heaters and pipes. Common examples of nonfriable ACMs are asphalt roofing shingles, vinyl floor tiles, and transite siding made with cement.

The EPA phased out use of friable asbestos products between 1973 and 1978. National Emission Standards for Hazardous Air Pollutants (NESHAP) guidelines require that potentially friable ACMs be removed prior to building demolition or remodeling that may disturb the ACMs.

CCR Title 8, Section 1532.1
The United States Consumer Product Safety Commission banned the use of lead-based paint in 1978.

Removal of older structures with lead-based paint is subject to requirements outlined by the Cal/OSHA Lead in Construction Standard, CCR Title 8, Section 1532.1 during demolition activities.

Requirements include employee training, employee air monitoring, and dust control. If lead-based paint is peeling, flaking, or blistered, it is required to be removed prior to demolition. 31 California Environmental Protection Agency. “Cortese List Data Resources.” Accessed May 28, 2020. https://calepa.ca.gov/sitecleanup/corteselist/.

Page 694 of 1462 ends

141 3rd Avenue Residential 66 Initial Study
City of Daly City January 2023
Regional and Local
San Francisco International Airport Land Use Compatibility Plan The project site is located within the jurisdiction of the San Francisco International (SFO) Airport Land Use Compatibility Plan (ALUCP). The ALUCP identifies potential conflicting land uses within the Airport Influence Area (AIA) of SFO.

Daly City 2030 General Plan
The General Plan includes policies for the purpose of avoiding or mitigating impacts resulting from development projects within the City. The following policies are specific to hazards and hazardous materials and are applicable to the proposed project.

Policy/Task Description
Policy LU-18 Development activities shall not be allowed to significantly disrupt the natural or urban environment and all reasonable measures shall be taken to identify and prevent or mitigate potentially significant effects.

Task LU18.1 Ensure that potentially significant environmental impacts associated with development proposals are properly mitigated through conditions of approval, mitigation measures, project design, or project denial. In cases where the impacts may not be completely preventable but will not significantly disrupt the community, the City may recognize that the benefits of a project may outweigh the environmental consequences. In no case shall the City approve a project that endangers the health, safety, or welfare of the public.

Policy SE-4.1 Support efforts to locate, regulate, and maintain information regarding hazardous materials located or transported within the City.

Policy SE-4.2 Cooperate with the County of San Mateo in the regulation of hazardous materials and transportation in the Fire Prevention Services Bureau within the City.

Policy SE-4.6 Require the preparation of a risk assessment to determine site suitability for applications for hazardous materials waste management facilities. Establish the distance requirements for these facilities from public assembly, residential or immobile population and recreation areas and structures. Access impacts from seismic, geologic, and flood hazards, impacts on wetlands, endangered species, air quality and emergency response capabilities; and proximity to major transport routes.

Existing Conditions
On-Site Conditions
Historic Uses
Based on a review of historic aerial photographs, the first known development on-site was the singlefamily residence located on the northwestern corner of the project site. The residence was constructed around 1908. By 1926, numerous greenhouses were developed on the property, and by 1946, a boiler room was developed on the southwestern corner of the project site. By 1980, the greenhouses and boiler room were no longer present on-site.

Page 695 of 1462 ends

141 3rd Avenue Residential 67 Initial Study
City of Daly City January 2023
Soil Conditions
Five soil samples were collected from four test pit locations on-site. The soil samples were analyzed for organochlorine pesticides, arsenic, lead, mercury, and soluble lead. The soil analysis indicated that the soil samples contained organochlorine pesticide concentrations that were below the RWQCB’s Direct Exposure Human Health Screening Levels (DEHHSL) for residential land use.

Arsenic concentrations ranged from 2.9 mg/kg to 4.6 mg/kg, exceeding the DEHHSL of 0.067 mg/kg, but were below the background upper level of 11 mg/kg. The RWQCB considers background levels to be acceptable for contaminants where the DEHHSL are less than typical background levels.

The lead concentrations contained in the samples were generally within typical background levels and below their respective residential DEHHSL, with the exception of one sample. The lead concentration was found to be 92 mg/kg, exceeding the residential DEHHSL of 80 mg/kg.

Concentrations of mercury detected in the samples were below their respective residential DEHHSL and within typical background levels. Soluble lead was found at a concentration of 4.3 mg/L, which is below the Soluble Threshold Limit Concentration (STLC) of 5.0 mg/L. Soil containing a soluble lead concentration below the STLC is characterized as non-hazardous waste.

Asbestos and Lead-Based Paint (LBP)
Due to the age of the existing residence, there is potential that ACMs and LBP are present in building materials.

Surrounding Conditions
Based on a records search, the south adjoining property at 165 3rd Avenue was also historically developed with greenhouses from at least 1943 to 2002. Prior to redevelopment of this property with the current townhouses, elevated concentrations of pesticides in soils were identified in the area of the former greenhouses, including dichlorodiphenyltrichloroethane (DDT), dieldrin, dichlorodiphenyl-dichloroethylene (DDE), and dichlorodiphenyldichloroethane (DDD). Some of the highest concentrations were identified along the border shared with the project site. Thus, there is potential that the project site has some soils impacted by pesticide contamination, particularly in the southern portion of the site.

Other Hazards
Airports
The San Francisco International Airport is located approximately 6.6 miles southeast of the project site. Federal Aviation Regulations, Part 77, “Objects Affecting Navigable Airspace” (FAR Part 77), requires that the Federal Aviation Administration (FAA) be notified of certain proposed construction projects located within an extended zone defined by an imaginary slope radiating outward for several miles from an airport’s runways, or which would otherwise stand at least 200 feet in height above ground. For the project site, any structure exceeding 200 feet in height above ground would require submittal to the FAA for airspace safety review.

Any proposed land use policy actions, including the proposed General Plan amendment/rezoning, that affect properties within the ALUCP Area B boundary in Daly City (such as the project site) must

Page 696 of 1462 ends

141 3rd Avenue Residential 68 Initial Study
City of Daly City January 2023
be referred to the C/CAG Board for an ALUCP consistency review and determination. The Plan would first go to the C/CAG Airport Land Use Committee for review and a recommendation to the C/CAG Board. The Board will consider the ALUC recommendation and evaluate the consistency of the General Plan amendment with the relevant airport/land use compatibility policies and criteria contained in the adopted ALUCP. The C/CAG Board consistency determination must occur before the City Council can approve the proposed project. If the C/CAG Board determines the project inconsistent, the City Council can override the Board’s determination with a supermajority vote upon making necessary findings.

Wildland Fire Hazards
The project site is not located within a Very-High Fire Hazard Severity Zone for wildland fires.32

4.9.2 Impact Discussion
Potentially
Significant
Impact
Less than
Significant with
Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
1) Create a significant hazard to the public or the
environment through the routine transport, use,
or disposal of hazardous materials?
2) Create a significant hazard to the public or the
environment through reasonably foreseeable
upset and accident conditions involving the
release of hazardous materials into the
environment?
3) Emit hazardous emissions or handle hazardous
or acutely hazardous materials, substances, or
waste within one-quarter mile of an existing or
proposed school?
4) Be located on a site which is included on a list
of hazardous materials sites compiled pursuant
to Government Code Section 65962.5 and, as
a result, would it create a significant hazard to
the public or the environment?
5) For a project located within an airport land use
plan or, where such a plan has not been
adopted, within two miles of a public airport
or public use airport, result in a safety hazard
or excessive noise for people residing or
working in the project area?
6) Impair implementation of or physically
interfere with an adopted emergency response
plan or emergency evacuation plan?
32 CAL FIRE. San Mateo County Fire Hazard Severity Zones. Map. November 6, 2007.

Page 697 of 1462 ends

141 3rd Avenue Residential 69 Initial Study
City of Daly City January 2023
Potentially
Significant
Impact
Less than
Significant with
Mitigation
Incorporated
Less than
Significant
Impact
No Impact
Would the project:
7) Expose people or structures, either directly or
indirectly, to a significant risk of loss, injury,
or death involving wildland fires?
Impact HAZ-1: The project would not create a significant hazard to the public or the environment through the routine transport, use, or disposal of hazardous materials. (Less than Significant Impact)
Operation of the proposed townhomes would likely include the use and storage of cleaning supplies and maintenance chemicals in small quantities on-site. The small quantities of cleaning supplies and maintenance chemicals used on-site would be comparable to the operations of adjacent residential uses and would not pose a risk to adjacent land uses. (Less Than Significant Impact) Impact HAZ-2: The project would not create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment. (Less than Significant Impact with Mitigation Incorporated)
On-Site Soils
As discussed in Section 4.9.1.2 Existing Conditions, lead was detected in the on-site soils in excess of the RWQCB’s DEHHSL. Additionally, the adjacent site at 165 3rd Avenue was known to have elevated levels of pesticide contamination prior to development of the current townhomes. Soil sampling on the project site did not identify elevated concentrations of organochlorine pesticides in on-site soils. The project could result in the release soil contaminants into the environment if appropriate control measures are not implemented.

Impact HAZ-2: Disturbance of hazardous materials could expose works and nearby sensitive receptors to hazardous materials during construction.

Mitigation Measures: The following mitigation measures would reduce impacts to workers and nearby sensitive receptors to a less than significant level:

With implementation of mitigation measure MM HAZ-2.1, the impacts from on-site contamination would be reduced to a less than significant level. (Less than Significant Impact with Mitigation Incorporated)

Page 698 of 1462 ends

141 3rd Avenue Residential 70 Initial Study
City of Daly City January 2023
Asbestos and Lead Based Paint
Based on the estimated age of the existing on-site building, ACMs and LBP may be present in some building materials. Building demolition could result in the release of these materials to the environment. The project will, however, be required to comply with local, state, and federal laws, which require an ACM and LBP building survey be completed by a qualified professional to determine the presence of ACMs and/or LBP on the residence proposed for demolition.

Demolition activities will be undertaken in accordance with Cal/OSHA standards, contained in Title 8 of the California Code of Regulations Sections 1528 and 1529, to protect workers from exposure to asbestos. Materials containing more than one percent asbestos are also subject to BAAQMD regulations. To comply with these regulatory requirements, a registered asbestos abatement contractor will be retained to remove and dispose of all potentially friable ACMs, in accordance with the National Emissions Standards for Hazardous Air Pollutants guidelines, prior to building demolition that may disturb the materials. Materials containing LBP will be removed in accordance with Cal/OSHA Lead in Construction Standard, Title 8, CCR 1532.1, including employee training, employee air monitoring and dust control. Any debris or soil containing lead-based paint or coatings will be disposed of at landfills that meet acceptance criteria for the waste being disposed. (Less Than Significant Impact)
Impact HAZ-3: The project would not emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an existing or proposed school. (Less than Significant Impact) The nearest school is Thornton High School, located at 115 1st Avenue, approximately 0.07 miles west of the project site. As discussed in Impact HAZ-1, project operation would involve the storage and use of limited quantities of common residential cleaning and maintenance chemicals.

Construction emissions are addressed in Section 4.3 Air Quality. The project would not emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste. (Less than Significant Impact)
Impact HAZ-4: The project would not be located on a site which is included on a list of hazardous materials sites compiled pursuant to Government Code Section 65962.5 and, as a result, create a significant hazard to the public or the environment. (No Impact)
The project site is not included on a list of hazardous materials sites pursuant to Government Code Section 65962.5.33 (No Impact)
Impact HAZ-5: The project would be located within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport. The project would not result in a safety hazard or excessive noise for people residing or working in the project area. (Less than Significant Impact)
33 CalEPA. Cortese List Data Resources. Accessed December 1, 2020. https://calepa.ca.gov/sitecleanup/corteselist/

Page 699 of 1462 ends

141 3rd Avenue Residential 71 Initial Study
City of Daly City January 2023
The project site is located approximately 6.6 miles northwest of SFO. The proposed project would be located within the SFO AIA. As a result, it would be required to comply with applicable policies of the SFO ALUCP. The project has been reviewed by the C/CAG Board and was determined to be consistent with the ALUCP.34 The project site is not located inside the CNEL noise contours identified in the SFO ALUCP, indicating airport related noise levels are below 65 dB at the project site, a level compatible with residential uses.

The proposed project will be 35 feet in height; therefore, the total height of the townhomes would not exceed 200 feet above ground level and, therefore, would not require submittal to the FAA for airspace safety review. Although the project site is located within the jurisdiction of the SFO ALUCP, there are no safety hazards or excessive noise levels which would result in a significant impact. (Less than Significant Impact)
Impact HAZ-6: The project would not impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan. (Less than Significant Impact)
The proposed project would not impair or physically interfere with any adopted emergency response or evacuation plan. The proposed project would be constructed to comply with all applicable building and fire codes. During construction and operation of any future project, roadways would not be blocked such that emergency vehicles would be unable to access the site or surrounding properties.

During operation, emergency ingress and egress to the project site would be provided by the surrounding roadways. The alignments of the drive aisles on-site and the radii of the corners and curbs would be adequate to accommodate the circulation of emergency vehicles. (Less than Significant Impact)
Impact HAZ-7: The project would not expose people or structures, either directly or indirectly, to a significant risk of loss, injury, or death involving wildland fires. (Less than Significant Impact)
The project vicinity is entirely urbanized and is not located within a wildlands hazard area.35 Therefore, the project would not expose people or structures to a significant risk of loss, injury, or death involving wildland fires. (Less than Significant Impact) 34 C/CAG Board of Directors. Resolution 22-107. December 8, 2022. 35 CAL FIRE. San Mateo County Fire Hazard Severity Zones. Map. November 6, 2007.

Page 700 of 1462 ends

141 3rd Avenue Residential 72 Initial Study
City of Daly City January 2023

HYDROLOGY AND WATER QUALITY

4.10.1 Environmental Setting
Regulatory Framework
Federal and State
The federal Clean Water Act and California’s Porter-Cologne Water Quality Control Act are the primary laws related to water quality in California. Regulations set forth by the EPA and the SWRCB have been developed to fulfill the requirements of this legislation. EPA regulations include the National Pollutant Discharge Elimination System (NPDES) permit program, which controls sources that discharge pollutants into the waters of the United States (e.g., streams, lakes, bays, etc.). These regulations are implemented at the regional level by the Regional Water Quality Control Boards (RWQCBs). The project site is within the jurisdiction of the San Francisco Bay RWQCB.

National Flood Insurance Program
The Federal Emergency Management Agency (FEMA) established the National Flood Insurance Program (NFIP) to reduce impacts of flooding on private and public properties. The program provides subsidized flood insurance to communities that comply with FEMA regulations protecting development in floodplains. As part of the program, FEMA publishes Flood Insurance Rate Maps (FIRMs) that identify Special Flood Hazard Areas (SFHAs). An SFHA is an area that would be inundated by the one-percent annual chance flood, which is also referred to as the base flood or 100- year flood.

Statewide Construction General Permit
The SWRCB has implemented an NPDES General Construction Permit for the State of California (Construction General Permit). For projects disturbing one acre or more of soil, a Notice of Intent (NOI) must be filed with the RWQCB by the project sponsor, and a Storm Water Pollution Prevention Plan (SWPPP) must be prepared by a qualified professional prior to commencement of construction and filed with the RWQCB by the project sponsor. The Construction General Permit includes requirements for training, inspections, record keeping, and, for projects of certain risk levels, monitoring. The general purpose of the requirements is to minimize the discharge of pollutants and to protect beneficial uses and receiving waters from the adverse effects of construction-related storm water discharges.

Regional and Local
San Francisco Bay Basin Plan
The San Francisco Bay RWQCB regulates water quality in accordance with the Water Quality Control Plan for the San Francisco Bay Basin (Basin Plan). The Basin Plan lists the beneficial uses that the San Francisco Bay RWQCB has identified for local aquifers, streams, marshes, rivers, and the San Francisco Bay, as well as the water quality objectives and criteria that must be met to protect these uses. The San Francisco Bay RWQCB implements the Basin Plan by issuing and enforcing waste discharge requirements, including permits for nonpoint sources such as the urban runoff

Page 701 of 1462 ends

141 3rd Avenue Residential 73 Initial Study
City of Daly City January 2023
discharged by a City’s stormwater drainage system. The Basin Plan also describes watershed management programs and water quality attainment strategies.

Municipal Regional Permit Provision C.3
The San Francisco Bay RWQCB re-issued the MRP in 2015 to regulate stormwater discharges from municipalities and local agencies (co-permittees) in Alameda, Contra Costa, San Mateo, and Santa Clara Counties, and the cities of Fairfield, Suisun City, and Vallejo.36 Under Provision C.3 of the MRP, new and redevelopment projects that create or replace 10,000 square feet or more of impervious surface area are required to implement site design, source control, and Low Impact Development (LID)-based stormwater treatment controls to treat post-construction stormwater runoff. LID-based treatment controls are intended to maintain or restore the site’s natural hydrologic functions, maximizing opportunities for infiltration and evapotranspiration, and using stormwater as a resource (e.g., rainwater harvesting for non-potable uses). The MRP also requires that stormwater treatment measures are properly installed, operated, and maintained.

In addition to water quality controls, the MRP requires new development and redevelopment projects that create or replace one acre or more of impervious surface to manage development-related increases in peak runoff flow, volume, and duration, where such hydromodification is likely to cause increased erosion, silt pollutant generation, or other impacts to local rivers, streams, and creeks.

Projects may be deemed exempt from these requirements if they do not meet the minimized size threshold, drain into tidally influenced areas or directly into the Bay, or drain into hardened channels, or if they are infill projects in subwatersheds or catchment areas that are greater than or equal to 65 percent impervious.

Construction Dewatering Waste Discharge Requirements
Each of the RWQCBs regulate construction dewatering discharges to storm drains or surface waters within its Region under the NPDES program and Waste Discharge Requirements.

Daly City Municipal Code
Chapter 14.04 of the Daly City Municipal Code, also known as the Daly City Stormwater Management and Discharge Control Ordinance prohibits non-stormwater discharges to the City storm drain system. The purpose of the Ordinance is to eliminate non-stormwater discharges to the municipal separate storm drain system, control the discharge of spills, dumping or disposal of materials other than stormwater, and reduce pollutants in stormwater discharges into the storm drain system to the maximum extent practicable. Chapter 14.12 gives the City the authority to inspect projects to enforce any of the provisions of Title 14.

Chapter 15.62 of the Daly City Municipal Code, also known as the City of Daly City Grading, Erosion and Sediment Control Ordinance sets forth rules and regulations to control site clearing, vegetation disturbances, land-fills, land excavations, soil storage, and other such activities which may cause sediments and other pollutants to enter the public drainage facilities. The chapter establishes the regulations, permit requirements, procedures for administration and enforcement of permits to properly control the aforementioned activities to preserve and enhance public health, safety and 36 MRP Number CAS612008

Page 702 of 1462 ends

141 3rd Avenue Residential 74 Initial Study
City of Daly City January 2023
environment. Section 15.62.230 requires the permittee to maintain a copy of the permit, approved plans and reports and make these available for city inspection. Section 15.62.270 gives the City engineer authority to suspend or revoke a permit for violation or non-compliance with Chapter

15.62. Daly City 2030 General Plan
The General Plan includes policies for the purpose of avoiding or mitigating impacts resulting from development projects within the City. The following policies are specific to hydrology and water quality and are applicable to the proposed project.

Policy/Task Description
Policy RME8 Through the development of a Stormwater Management Program, ensure that all new development complies with the applicable Municipal Regional Stormwater Permit by incorporating controls that reduce water quality impacts over the life of the project in ways that are both technically and economically feasible, and reduce pollutants in stormwater discharges to the maximum extent practicable.

Task RME8.5 Ensure the regular inspection of stormwater treatment facilities as required by the Municipal Regional Stormwater NPDES Permit.

Policy RME9 Balance stormwater mitigation measures with the other inherent benefits of higher density development that is in close proximity to public transit, i.e., reduction of Vehicle Miles Traveled (VMT) on local and regional roadways to the extent permitted under the Municipal Regional Stormwater Permit.

Task RME9.1 Continue to explore low-impact development credits for high density transit-oriented development within the City’s established Priority Development Areas with the Regional Water Quality Control Board.

Policy SE-2.1 Protect the City of Daly City from unreasonable risk to life and property caused by flood hazards by designing and constructing drainage facilities to improve the flow capacity of the City’s water system in order to accommodate the storm water runoff generated by a 100-year storm.

Existing Conditions
Stormwater
The project site is located within the Colma Creek Watershed which extends from San Bruno Mountain to its outlet at the San Francisco Bay just north of the San Francisco Airport and south of Point San Bruno. The project site is primarily unpaved, with the exception of the existing singlefamily residence and associated driveway. Approximately 1,700 square feet (5.5 percent) of the 31,140 square-foot site is made up of impervious surface area while the remainder of the project site (94.5 percent) contains pervious surfaces. Stormwater not absorbed within the project site is directed to the curb inlets and conveyed into the existing 12-inch stormwater line in 3rd Avenue.

Page 703 of 1462 ends

141 3rd Avenue Residential 75 Initial Study
City of Daly City January 2023
Groundwater
The aquifer that underlies most of Daly City is within the Westside Groundwater Basin (Westside Basin). The Westside Basin underlies parts of San Francisco and northern San Mateo counties. The basin extends from Golden Gate Park in the north and past the San Francisco International Airport in the south. The basin extends to the west beneath the Pacific Ocean at least as far as the San Andreas Fault and to the east an unknown distance beneath San Francisco Bay. The Westside Basin is a buried valley, where the walls and floor of the valley are formed by rock with a mixture of courseand fine-grained sediments as much as 3,700 feet thick in parts of the basin fill. The coarse-grained sediments consist of sand and gravel and the fine-grained sediments consist of silt and clay. Sand and gravel can transmit substantial quantities of water to wells, whereas silt and clay impede the movement of groundwater. Where silt and clay deposits form semi-continuous beds, they can effectively isolate the water table from underlying aquifer. Groundwater in the shallow water table aquifer is referred to as “unconfined” and the underlying aquifer separated from the water table by continuous and semi-continuous fine-grained silt and clay strata are referred to as “confined.” Both unconfined and confined conditions occur in the Westside Basin. The project site is not located within a designated recharge area.37 Groundwater on-site is estimated to be 16 to 17 feet below ground surface (bgs) and flow westward.38
There is an existing, buried well on-site that was likely associated with prior greenhouse irrigation.

The depth of the well on-site is not currently known, but other wells in the project area are known to reach depths up to hundreds of feet deep.

Flooding Hazards
FEMA has developed a Flood Hazard Boundary Map (FHBM) and has designated Daly City as a Non-Special Flood Hazard Area (NSFHA). The project site is not located in a 100-year floodplain.

Dam Inundation, Seiches, Tsunamis, and Mudflow Hazards
No areas in the city are subject to dam inundation. There are no water bodies in Daly City so there is no threat of seiches. A tsunami inundation map prepared by the California Department of Conservation shows a portion of the coast in Daly City as a tsunami inundation area. However, the project site is outside of the tsunami inundation area.39 37 City of Daly City. General Plan Environmental Impact Report, Hydrology. 2012. 38 AEI Consultants. Phase I Environmental Site Assessment. October 1, 2020. 39 California Department of Conservation. California Official Tsunami Inundation Maps. Accessed December 3, 2020.

Page 704 of 1462 ends

Daly City City CouncilApril 24, 2023

Daly City City Council
April 24, 2023