HomeMy WebLinkAbout2385 Trousdale Drive - Technical Study�� CITY 0
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The City of Burlingame
CITY HALL 501 PRIMROSE ROAD TEL: (650) 558-7250
PLANNING DEPARTMENT BURL[NGAME, CALIFORNIA 94010-3997 FAX: (650) 696-3790
NOTICE OF INTENT TO ADOPT A MITIGATED NEGATIVE DECLARATION
To: Interested Individuals From: City of Burlingame
County Clerk of San Mateo Planning Department
Responsible and Trustee Agencies 501 Primrose Road
Burlingame, CA 94010
Subject: Notice of Intent to Adopt a Mitigated Negative Declaration (ND-540-P)
Project Title: Trousdale Pump Station and Transmission Main Project
Project Location: Pump Station: 2501 and 2385 Trousdale Drive, Burlingame, CA 94010 (APN 025-062-010,
025-130-030, and 025-130-070)
Transmission Main: Trousdale Drive, from Magnolia Avenue to I-280, and along the eastern
border of Crystal Springs Watershed lands
Project Description: The proposed project involves replacement of the existing Trousdale Pump Station with a new,
larger Trousdale Pump Station, and installation of a water transmission main. The project components would provide
a connection from San Francisco Public Utilities Commission (SFPUC) conduits at Trousdale Drive and Magnolia Avenue
to the new, expanded Trousdale Pump Station, to the Mills Tank, located within Crystal Springs Watershed lands along
I-280. Additionally, the existing Alcazar tanks and Donnelly tanks and pump station would be removed from service as
part of the project; no further action upon removal of these facilities from service is proposed. A more detailed
description of the project is found in the Initial Study for the project.
The project components would transmit water supply from an elevation of approximately 29 feet above sea level (at
the SFPUC connection at Trousdale Drive and Magnolia Avenue) to approximately 650 feet above sea level (at the Mills
Tank). The new pump station would have the capability to pump the maximum day flow combined with fire flow. The
maximum capacity for the pump station and transmission main would thus be set at 5.4z million gallons per day
(approximately 3,800 gallons per minute). Final pump station flow rates and pump and pipe sizes would be
established during final design.
In accordance with Section 15072(a) of the California Environmental Quality Act (CEQA) Guidelines, notice is hereby given
of the City's intent to adopt a Mitigated Negative Declaration for the project listed above. A mitigated negative declaration
is a finding that, based on City review of the project, it will not have a significant effect on the environment. The City
of Burlingame has completed a review of the proposed project, and on the basis of an Initial Study, finds that although the
proposed project could initially have a sign�cant effect on the environment, changes or alterations have been incorporated
into the project to avoid or reduce impacts to a point where the project would not have a significant effect on the
environment. The City has prepared a Mitigated Negative Declaration and Initial Study that are available for public review at
City Hall, 501 Primrose Road, Burlingame, California, 94010.
The comment period for this document is begins on March 29, 2006 and ends during the public hearing on May 1,
2006 (see below). Comments may be submitted during the review period and up to the tentatively scheduled public
hearing. Persons having comments concerning this project, including objections to the basis of determination set forth
in the Initial Study/Negative Declaration, are invited to furnish their comments summarizing the specific and factual
basis for their comments, in writing to: City of Burlingame Planning Department. Pursuant to Public Resources Code
section 21177, any legal challenge to the adoption of the proposed Initial Study/Negative Declaration will be limited to
those issues presented to the City during the public comment period described above.
PUBLIC HEARING: The City Council hearing to consider the mitigated negative declaration for the Trousdale Pump
Station and Transmission Main Project has been tentatively scheduled for Monday, May 1, 2006 at 7:00 p.m. in the
City Council Chambers located at 501 Primrose Road, Burlingame, California. Comments on the proposed mitigated
negative declaration may be submitted at the public hearing.
Posted: March 29, 2006
INITIAL STUDY
Draft
Trousdale Pump Station and
Transmission Main Proj ect
1
City of Burlingame
March 29, 2006
TABLE OF CONTENTS
Introduction and Purpose .................................................................................... 1
II. Project Information ........................................................................................... 1
A. Project Title ........................ .................................................................. 1
B. Lead Agency Name and Address ................................................................. 1
C. Contact Person and Telephone Number ......................................................... 1
D. Project Sponsor's Name and Address ........................................................... 1
E. Other Public Agencies Whose Approval Is Required ......... .. .............................. 1
F. Project Location ..................................................................................... 2
G. Assessor's Parcel Numbers ........................................................................ 2
H. Surrounding Land Uses and Setting ............................................................. 4
Environmental Factors Potentially Affected .............................................................. 8
Determination................................................................................................. 8
III. Project Description ........................................................................................... 9
A. Project Background ................................................................................. 9
B. Proposed Project .................................................................................... 9
IV. Environmental Checklist and Discussion of Potential Effects ........................................ 18
A. Aesthetics ............................................................................................18
B. Agricultural Resources ............................................................................ 23
C. Air Quality ..........................................................................................24
D. Biological Resources ............................................... ............................... 29
E. Cultural Resources ................................................................................. 36
F. Geology and Soi1s ..................................................................................40
G. Hazards and Hazardous Materials ............................................................... 46
H. Hydrology and Water Quality ................................................................... 51
I. Land Use ...................................................•••......................................57
J. Mineral Resources .................................................................................62
K. Noise .............�--.................................................................................64
L. Population and Housing ...........................................................................74
M. Public Services .....................................................................................75
N. Recreation ........................................................................................... 77
O. Traffc ..................................�---..........................................................78
P. Utilities and Service Systems ....................................................................82
Q. Mandatory Findings of Significance ............................................................ 85
V. List of Authors and Participants ........................................................................... 89
FIGURES
Figure 1:
Figure 2:
Figure 3:
Figure 4:
Figure Sa:
Figure Sb:
Figure 6:
Figure 7:
Figure 8:
Figure 9:
ProjectLocation ..................................................................................... 3
Existing Facilities and Project Service Area ................................................... 5
Existing Trousdale Pump Station Site Plan ..................................................... 6
Proposed Trousdale Pump Station Site Plan ................................................... 11
Alignment of Proposed Trousdale Transmission Main ...................................... 13
Alignment of Proposed Trousdale Transmission Main ...................................... 14
Typical Trench Section ............................................................................ 16
Typical Utility Crossing ..........................................................................17
View Looking East from Local Scenic Route Portion of Trousdale Drive ............... 19
Existing Trousdale Pump Station ...............................................................21
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Figure 10:
Figure 11:
TABLES
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Faults in the Vicinity of the Project Site ....................................................... 4 1
Noise Monitoring Locations ......................................................................66
Federal and State Air Quality Standards ....................................................... 25
Prehistoric Archaeological Sites in the Vicinity of the Project Site .......................37
Acoustical Terminology ........................................................................... 65
Summary of Trousdale Pump Station Noise Study ........................................... 67
City of Burlingame - Outdoor Noise Level Planning Criteria ............................. 69
Average Noise Levels and Abatement Potential of Construction Equipment
Noise at 50 and 100 Ft. (dBA) ...................................................................72
1
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I. INTRODUCTION AND PURPOSE
This Initial Study was prepared pursuant to California Environmental Quality Act (CEQA) requirements and
the State CEQA Guidelines (California Code of Regulations §15000 et. seq.) and in accordance with the
regulations and policies of the City of Burlingame (City). This Initial Study addresses the potential
environmental impacts of the Trousdale Pump Station and Transmission Main Project (proposed project) in
order to determine if either a Negative Declaration or Environmental Impact Report is warranted to satisfy
CEQA requirements for environmental review of the proposed project.
II. PROJECT INFORMATION
A. PROJECT TITLE
Trousdale Pump Station and Transmission Main Project
B. LEAD AGENCY NAME AND ADDRESS
City of Burlingame
Public Works Department
501 Primrose Road
Burlingame, CA 94010
C. CONTACT PERSON AND TELEPHONE NUMBER
Philip Monaghan, Senior Civi] Engineer
(650) 558-7241
D. PROJECT SPONSOR'S NAME AND ADDRESS
City of Burlingame
Public Works Department
501 Primrose Road
Burlingame, CA 94010
E. OTHER PUBLIC AGENCIES WHOSE APPROVAL IS REQUIRED
• California Department of Transportation (Caltrans), for an Encroachment Permit for I-280
crossing and approval of final project design;
• San Francisco Public Utilities Commission (SFPUC), for an easement for encroachment of
alignment onto SFPUC lands west of Interstate 280 (I-280); and for a work authorization
permit from the SFPUC's Land Engineering Management Division for the City's contractor to
perform work within the SFPUC's easement along its Hetch Hetchy System turnouts;
• California Department of Fish and Game (CDFG), for an endangered species consultation for
the alignment portion within Crystal Springs Watershed lands;
• Bay Area Air Quality Management District (BAAQMD), for approval of the Application for
Authority to Construct/Permit to Operate in order to install an emergency standby generator at
the project site, since the generator would be classified by the BAAQMD as an Internal
Combustion Engine;
Trousdale Pun�p Statio�a an�! Transmissioi7 Mnin Project — Initial Stu�i�• Page 1
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• City of Burlingame Building Division, for a grading and construction permit to construct the
pump station and alignment;'
• California State Water Resources Control Board/Division of Water Quality for coverage under
the National Pollutant Discharge Elimination System General Permit for Storm Water
Discharges associated with construction activity.
F. PROJECT LOCATION
Figure l shows the project location. The project site is located primarily along Trousdale Drive in the
City of Burlingame, California with portions of the route in unincorporated San Mateo County. For
the purposes of defining the project location, the project site is divided into three main components: the
Trousdale Pump S[ation si[e, suction pipeline alignment, and discharge pipeline alignment. These
components are described in detail under Section III, Project Description. The Trousdale Pump Station
site is located at 2501 and 2385 Trousdale Drive, on the south side of the street.2
The suction piping portion of the water main alignment runs eastward from the pump station along
Trousdale Drive to the Trousdale Drive/Marco Polo Way intersection. At this intersection, the suction
piping alignment splits into two routes: (1) along Marco Polo Way the alignment runs to the SFPUC
Sunset Supply Pipeline turnout, in the vicinity of 1740 Marco Polo Way; and (2) along Trousdale
Drive [he alignment runs to the SFPUC Crystal Springs No. 3 Pipeline turnout at the Trousdale
Drive/Magnolia Avenue intersection. These turnouts connect the suction piping to the Hetch Hetchy
water distribution system. The discharge piping portion of the transmission main alignment runs
westward from the pump station along Trousdale Drive, underneath the I-280/Trousdale Drive
interchange, and into Crystal Springs Watershed lands. Just within Crystal Springs Watershed lands,
the aligrunent runs north, terminating at the Mills Tank.
Aside from the three main project components the project would include removing from service the
Alcazar Tanks and the Donnelly Tanks and Pump Station, which are connected to the existing
distribution system. Any further action on these facilities would be considered a separate project, and
would be subject to separate review. The Alcazar facility is located at 3025 Alcazar Drive and the
Donnelly facility is at 2817 Rivera Drive.
G. ASSESSOR'S PARCEL NUMBERS
The Assessor Parcel Numbers (APNs) provided below pertain to the Trousdale Pump Station site, as
well as the Donnelly Tanks and Pump Station, and the Alcazar Tanks. The remainder of the project
site, which would be occupied by transmission main alignments, runs within a public right-of-way,
City arterial or streets, I-280, or Crystal Springs Watershed lands, and would thus not have a
corresponding APN.
' Joe Cyr, Building Official, City of Burlingame, personal communication with EIP Associates, August 02, 2005. The
City's policy requires building permits for all City projects, including the Trousdale Pomp Station and Transmission
Main Project.
z For the purposes of this analysis, project south is approximately true southeast, and project north is approximately
true northwest.
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025-062-010 and 025-130-030: 2501 Trousdale Drive, location of existing Trousdale Pump
Station
025-130-070: 2385 Trousdale Drive, portion of parcel to be purchased from Burlingame
School District for expansion of pump station area
025-334-060: 3025 Alcazar Drive, location of existing Alcazar Tanks, which would be
removed from service when project is completed
025-031-021: 2817 Rivera Drive, location of existing Donnelly Tanks and Pump Station,
which would be removed from service when project is completed
H. SURROUNDING LAND USES AND SETTING
Zoning and building ordinances of the City do not apply to the location or construction of facilities for
the production, generation, storage, treatment, or transmission of water in accordance with the
provisions of California Government Code Section 53091; therefore, no planning commission
approvals are necessary for this project unless specifically overridden by the City. For the purposes of
defining surrounding land uses and setting, the project site is divided into its three main components.
Pump Station. The Trousdale Pump Station site is comprised of an existing pump station at 2501
Trousdale Drive. 2385 Trousdale Drive is currently owned by the Burlingame School District and is
part of the Franklin Elementary School grounds. No structures are built within the portion of 2385
Trousdale Drive where the new pump station would be expanded. Single family residences are located
immediately west of the pump station site and across Trousdale Drive from the site. Franklin
Elementary School occupies the area immediately east and south of the pump station site. Trousdale
Drive, which bounds the pump station site to the north, is a four-lane major City arterial; the portion of
Trousdale Drive along which the pump station would be located is a Local Scenic Route.
The existing pump station is an open air facility on a 2,600-square-foot parcel with four pumps that lift �
water from SFPUC connections to the Donnelly Pump Station at 2817 Rivera Drive, between Granada
and Sebastian Drives (see Figure 2). The pump station is connected via a pipeline along Trousdale
Drive that conveys water to the Donnelly Tanks and Pump Station. This pipeline is part of the City's
distribution system and provides service to residential customers along Trousdale Drive. Figure 2
depicts the service area for the project; the service area is known as the Hills area of the City.
The existing Trousdale pumps operate between five and six hours daily. A paved driveway provides
access to the four pumps, which are surrounded by a chain-link fence. There is a retaining wall
southeast of pumps one and two. Figure 3 depicts the existing pump station site pian.
Trousdale Pump S�ntioia nnd Trans�nission Main Project — Initial Study Page 4
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SOURCE: Olivia Chen ConsWtants
TROUSDALE PUMP STATION AND TRANS�IISSION MAIN
FIGURE 3: EXISTING TROUSDALE PUMP STATION SITE PLAN
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Following completion of the proposed Trousdale Pump Station and Transmission Main project, the Donnelly
and Alcazar facilities would be taken out of service and isolated from the main distribution system, but left in
place for emergency storage and distribution. If the City decides ro demolish the Donnelly or Alcazar facilities
in the future, a separate environmental review process will be initiated. Figure 2 depic[s the Hills area of
Burlingame along with the existing facilities that service the area, including the Donnelly and Alcazar facilities.
Transmission Trenching and Crossings. Figure 6 depicts a typical trench cross section for the proposed
transmission main. As seen in the figure, the total trenched width would include the pipeline and 12 inches on
each side of the pipeline. Approximately 6 inches of bedding would be placed underneath the pipeline. There
would be about 12 inches of pipeline backfill atop the pipeline, and about 18 inches of general backfill trench
would be placed atop the pipeline backfill. Assuming a 16-inch pipeline, the depth of trenched area would be
about 4.3 feet, excluding the paved road surface. Maximum pipeIine diameter would be 24 inches.
As described above, the transmission main would cross other utility lines. Figure 7 depicts a typical
construction detail for a utility crossing. As shown in the figure, the proposed alignment would typically be
routed over or under an existing utility, depending on the type of existing utility. A minimum 12-inch distance
would be maintained between the utilities, and a minimum 36-inch cover/backfll material depth would be
required atop the higher utility. All sewer crossings shall be constructed in accordance with State Separation
Criteria for Water Service, per the Department of Health Service.
The proposed construction methods for crossing I-280 at Trousdale Drive is bore-and-jack construction at the
crossing of the southbound I-280 off-ramp, open cut trench construction along Trousdale Drive below I-280,
and bore-and-jack construction at the crossing of the northbound I-280 on-ramp. Caltrans has reviewed and
preliminarily approved these construction methods and locations as a part of the encroachment permit
approvals process; however, the final project design is subject to further review and approval by Caltrans
before construction can begin.
Construction Schedule. Design and construction of the proposed project would occur in four phases and span
approximately 31 months, or over two and a half years, and be conducted by up to three different design
consulting firms. The first phase is the design and construction of the portion of the discharge piping between
the Mills Tank and the Trousdale Drive/Sebastian Drive intersection. The construction and design of the
remaining portion of the discharge piping between the Trousdale Drive/Sebastian Drive intersection and the
pump station comprises the second phase. Construction of the entire discharge piping alignment from the Mills
Tank to the pump station would tentatively start in November 2006 and end in March 2008. Third, the
Trousdale Pump Station Project would involve the design and construction of the pump s[ation, the
construction of which would tentatively start in July 2007 and end in July 2008. The existing pump station
would be kept in service during construction of the new pump station building and would be demolished after
construction of the new pump station building. The last phase of the proposed project is the design and
construction of the suction piping from the pump station to the Trousdale/Magnolia Turnout. The schedule for
this phase is not included in the current planning horizon for the CIP. However, construction of the suction
piping alignment would occur during a one-year future phase following completion of the new pump station.
As of the preparation of this document, construction of the suction piping alignment is estimated to start in
2011 and end in 2012. The total construction time needed to complete aIl items would be between 2.5 and 5.5
years. Once the proposed Trousdale Pump Station and Transmission Main project is complete, the Donnelly
and Alcazar facilities would be taken out of service and isolated from the main distribution system, but kept in
place for emergency storage and distribution.
Trousdale Pump Stntron and Trnnsmissiwt Main Project — Inr�ial Stu�lv Page IS
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BELOw F�PE J{�N'rS BEu.S,
2. SUFRt?RT PiPE DURING PtACEMENT
Of f�,.�, ANCH�R PIPE TO PR£Y£NT
FLflTATiON � PIPE� AS NEEDED,
3. tAYBACK SFIia►t! 8E IN ACCt3R(3AlVCE
WtTH CAL—OSHA �R�QutREMENTS.
SOURCE: Olivia Chen Consul[ants
TROUSDALE PUMP STATION AND TRANSMISSION MAIN
FIGURE 6: TYPICAL TRENCH SECTION
SOURCE: Erler 8 Kalinowski, Inc.
TROUSDALE PUMP STATION AND TRANSMISSION MAIN
FIGURE 5B: ALIGNMENT OF PROPOSED TROUSDALE TRANSMISSION MAIN
SOURCE: Erler & Kalinowski, Inc.
TROUSDALE PUMP STATION AND TRANSMISSION MAIN
FIGURE 5A: ALIGNMENT OF PROPOSED TROUSDALE TRANSMISSION MAIN
• Acoustical tiles on the interior surfaces of the pump station, roof, and walls;
• Sound damping air vents oriented to direct sound away from adjacent sensitive uses;
• Sound-proofed roof hatches/skylights; and
• Large noise reducing exhaust muffler on the diesel back-up generator.3
Estimated soil cut volume at the pump station is 89 cubic yards and estimated fill volume is 176 cubic yards.
The area occupied by the existing pump station (northwest corner of the proposed pump station area) would be
re-graded and lowered by about 4 feet and used as both storage space and as a parking area. The finished
ground elevation after grading would be approximately 130 feet above sea level. Site drainage would be
towards Trousdale Drive. There would be one 12-inch by 12-inch catch basin on site that would discharge into
the City storm drain system along Trousdale Drive via a 6-inch storm drain pipe.
The pipeline along Trousdale Drive that connects the existing pump station to the Donnelly Tanks would
remain in service until the new Trousdale Pump Station is brought on line. This pipeline would be capped
after the new Trousdale Pump Station is brought online, but would remain in service to provide service to
residences along Trousdale Drive. Once capped, the water would be conveyed by gravity-fed flows from the
Mills Tank.
Transmission Main. The approximately 9,960-foot-long transmission main component of the project is
divided into suction piping and discharge piping. Figures Sa and Sb depict the alignment of the proposed
transmission main. The new, dedicated (no service connections) suction side piping would connect the new
pump station to the Trousdale/Magnolia Turnout from the SFPUC's Crystal Springs Pipeline No. 3, located at
Trousdale Drive and Magnolia Avenue; and to the Marco Polo Tumout from the SFPUC's Sunset Supply
Pipeline, located in the vicinity of 1740 Marco Polo Way. The suction piping would consist of about 850 feet
of 12-inch-diameter PVC pipe between the Trousdale/Magnolia Turnout and the Trousdale Drive/Marco Polo
Way intersection; about 350 feet of 12-inch-diameter PVC pipe between the Marco Polo Turnout and the
Trousdale Drive/Marco Polo Way intersection; and about 1,760 feet of 16-inch-diameter PVC pipe between
the Trousdale Drive/Marco Polo Way intersection and the pump station. Spiral welded steel piping may
replace the PVC piping in the final design of the suction piping, as spiral welded steel piping may be necessary
based on pressure levels; however, this decision will be made during the final design phase. The suction
piping would cross at least 18 other utility lines, including storm drains, domestic water lines, gas lines;
sanitary sewer lines, underground electric lines, and associated laterals, services, and appurtenances.
There would be approximately 7,000 feet of discharge piping connecting the Trousdale Pump Station to the
Mills Tank. About 3,800 feet of the discharge piping from the discharge side of the new pump station to
Sebastian Drive would consist of 16-inch-diameter welded steel pipe, and about 3,850 feet from Sebastian
Drive to the Mills Tank would consist of 24-inch-diameter ductile iron pipe. The discharge piping alignment
would cross the I-280 right-of-way and would enter Crystal Springs Watershed lands, west of I-280. From the
pump station to Sebastian Drive, the alignment would run along the south side of Trousdale Drive; from
Sebastian Drive to the I-280 crossing, the alignment would run along the north side of Trousdale Drive.
Ben Wright, EIT, Staff Engineer, Olivia Chen Consultants, electronic communication with EIP Associates,
May 25, 2005.
Trousdale Pump Stntroi7 and Transnrrssion Mari: Project — Initial Study Page l2
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SOURCE: Olivia Chen Consullants
TROUSDALE PUMP STATION AND TRANSMISSION MAIN
FIGURE 4: PROPOSED TRAUSDALE PUMP STATION
�
Suction Piping. As previously described, the suction piping portion of the alignment runs underneath
the southern side of Trousdale Drive, eastward from the Trousdale Pump Station to Marco Polo Way
and the Trousdale Drive/Magnolia Avenue intersection. Other than Franklin Elementary School, land
uses along this alignment include single and multiple family residences; medical offices; the Peninsula
Medical Center, an inpatient hospital; offices; and Burlingame Plaza Shopping Center, which includes
several restaurants and neighborhood service businesses such as a grocery store, cleaners, shoe repair,
beauty salons, and a bank.
The proposed alignment for the suction piping crosses at least 23 other utility lines. Between the
Trousdale/Magnolia Turnout, the Marco Polo Turnout, and the Trousdale Pump Station, the suction
piping alignment crosses at least 13 domestic water lines, six sanitary sewer lines, and four storm drain
pipes, all of which are owned by the City and managed by the Public Works Department. The suction
piping alignment also crosses multiple electrical and gas lines owned by Pacific Gas and Electric
Company (PG&E).
Discharge Piping. The discharge piping portion of the alignment runs westward from the pump
station to the Mills Tank, which is located just wes[ of I-280 and within Crystal Springs Watershed
lands. Land uses along this alignment are comprised of single and multiple family residences. The
alignment crosses I-280, under Caltrans' jurisdiction, and runs within Crystal Springs Watershed lands,
which is a designated Biosphere Preserve with areas of restricted recreational access and is considered
by the CDFG as a game refuge. The alignment area within Crystal Springs Wa[ershed lands is owned
by the SFPUC. The City would obtain an easement from SFPUC for the lifetime of the pipeline
alignment. The process to obtain the easement would begin once this document is accepted by Ciry
Council, tentatively estimated to occur in May 2006. In addition, a permit from SFPUC's Department
of Real Estate Services would be obtained upon approval of this document.
The proposed discharge piping alignment crosses at least 38 other utility lines. Between the Trousdale
Pump Station and Sebastian Drive, the discharge piping alignment crosses at least five domestic water
lines, three sanitary sewers, and eight storm drains that are owned by the City and managed by the
Public Works Department. The discharge piping alignment also crosses multiple electrical and gas
lines that are owned by PG&E. The Serra fault, a low potential active fault, intersects the discharge
piping alignment between Hunt Drive and Sebastian Drive. Checklist Item F, Soils and Geology,
contains further information about the Serra fault.
The Donnelly Tanks and Pump Station facility receives water directly from the existing Trousdale
Pump Station, and the tanks provide 98,000 gallons of storage. Water from the Donnelly facility is
dispensed to the Donnelly distribution system zone, and to the Mills and Alcazar Tanks, as shown in
Figure 2. The Alcazar Tanks dispense water to the Alcazar distribution system zone, also shown in
Figure 2.
Trousdale Pump Station nnd Trnnsmission Main Project — Initra! Study Page 7
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ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED
The environmental factors checked below would be potentially affected by this project, involving at least one
impact that is a"Potentially Significant Impact" as indicated by the checklist on the following pages.
❑ Aesthetics
❑ Biological Resources
❑ Agriculture Resources
❑ Cultural Resources
❑ Hazards & Dangerous Materials ❑ Hydrology/Water Quality
❑ Mineral Resources
❑Public Services
❑ Utilities/Services Systems
❑ Noise
❑ Recreation
❑ Mandatory Findings of
Significance
DETERMINATION
On the basis of this initial evaluation:
❑ Air Quality
❑ Geology/5oils
❑ Land Use/Planning
❑ Population/Housing
❑ Transportation/Traffic
❑ I find that the proposed project COULD NOT have a significant effect on the environment, and a
NEGATIVE DECLARATION will be prepared.
� 1 find that although the proposed project could have a significant effect on the environment, there will not
be a significant effect in this case because revisions in the project have been made by or agreed to by the
project proponent. A MITIGATED NEGATIVE DECLARATION has been prepared.
❑ 1 find that the proposed project MAY have a significant effect on the environment, and an
ENVIRONMENTAL IMPACT REPORT is required.
❑ I find that the proposed project MAY have a significant effect(s) on the environment, but at least one effect
1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and 2) has
been addressed by mitigation measures based on the earlier analysis as described on the attached sheets.
An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain
to be addressed.
❑ I find that although the proposed project could have a significant effect on the environment, because all
potentially significant effects (a) have been analyzed adequately in an earlier EIR or NEGATIVE
DECLARATION pursuant to applicable standards, and (b) have been avoided or mitigated pursuant to that
earlier EIR or NEGATIVE DECLARATION, including revisions or mitigation measures that are imposed
upon the proposed project, nothing further is required.
Signature
Philip Monaghan, Senior Civil Engineer
Date
For:
City of Burlingame
Trousdale Pump Stntinn and Transmission Main Project — Inrtin[ Study P�ge 8
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III. PROJECT DESCRIPTION
A. PROJECT BACKGROUND
The City of Burlingame's potable water distribution system delivers roughly 4 to 5 million gallons per day
(mgd) of water from the SFPUC distribution system to City residents via pipelines running underneath City
streets. More than half of the City's 100 miles of water distribution pipelines are over 50 years old. To
maintain reliable water services into the future, the City has initiated a Capital Improvements Program (CIP) to
replace old water system infrastructure and improve water flow, pressure, and fire protection capabilities in
local neighborhoods. A Water System Master Plan that guides the CIP has been prepared by Erler &
Kalinowski, Inc. (EKI). Anticipated projects under the CIP fall into three broad areas:
• upgrading existing pumping stations and storage reservoirs to improve overall water service;
• replacing old water mains, service laterals, and meters in various neighborhoods to improve water
flow and pressure; and
• making some facility upgrades to accommodate a change in drinking water disinfectant from
chlorine to chloramines in water supplied by the SFPUC. The disinfectant change is necessary to
address recent changes in State and federal laws regulating drinking water quality.
The proposed project is the Trousdale Pump Station and Transmission Main Project, which is one of several
different improvement projects under the CIP. The proposed project would improve water distribution in the
Hills portion of the City, shown in Figure 2. The Hills area of Burlingame is currently serviced by an existing
Trousdale Pump Station, located along Trousdale Drive; the Donnelly Tanks and Pump Station, located at 2817
Rivera Drive; the Alcazar Tanks, located at 3025 Alcazar Drive; and other distribution pipelines in the area,
including the Adeline, Alcazar, Donnelly, Hillside, Canyon, and Mills distribution zone pipelines.
� Both the Donnelly and the Alcazar facilities are older facilities that would require signifcant capital work in
order to retrofit and replace components that are approaching the end of service life. The Water System
Master Plan (prepared to guide CIP �mplementat�on) recommended that, mstead of retrofitting the Donnelly
and Alcazar facilities, new distribution facilities should be constructed.
B. PROPOSED PROJECT
The proposed project involves construction of a new, larger Trousdale Pump Station, and installation of the
Trousdale Transmission Main, which is divided into suction piping and discharge piping. In summary, the
project components would provide a suction piping connection from SFPUC conduits at Trousdale
Drive/Marco Polo Way and Trousdale Drive/Magnolia Avenue to a new, expanded Trousdale Pump Station,
and a discharge piping connection from the new pump station to the Mills Tank, located within Crystal Springs
Watershed lands and along I-280.
The project components would transmit water supply from an elevation of approximately 29 feet above sea
level (at the SFPUC connection at Trousdale Drive and Magnolia Avenue) to approximately 650 feet above sea
level (at the Mills Tank). The conceptual flow rates defined for the pump station and transmission main are:
Trousdale Pump Station a�td Trar2smission Main Projeci — Ini�ial Study Page 9
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Average Day 1.02 million gallons per day
Maximum Day 2.9 million gallons per day
Peak Hour 5.4 million gallons per day
Fire Flow 2.52 million gallons per day
(or 1,750 gallons per minute)
The new pump station would have the capability to pump the maximum day flow combined with fire flow.
The maximum capacity for the pump station and transmission main would thus be set at 5.42 mgd
(approximately 3,800 gallons per minute). Final pump station flow rates and pump and pipe sizes would be
established during final design.
Trousdale Pump Station. The new pump station would replace the existing Trousdale Pump Station at 2501
Trousdale Drive, a 2,600-square-foot property. The new pump station would occupy a 4,100-square-foot area.
A 1,500-square-foot portion of the adjacent 2385 Trousdale Drive property, occupied by Franklin Elementary
School, would be purchased from the Burlingame School District as part of the project for the construction of
the pump station.
Figure 4 depicts [he proposed site plan for the Trousdale Pump Station. Components of the pump station
would include an approximately 1,000-square-foot concrete masonry structure that would house four vertical
turbine pumps and motors, a 1,000-kilowatt portable diesel emergency generator, electrical panels, and control
instrumentation. The diesel generator would include an 1,800-gallon above-ground fuel storage tank that
would provide fuel supply for 24 hours, and would be equipped with double-wall containment and leak
detection. The structure would have a wall height of 10 feet. The roofing of the structure would be standing
seam metal, and would include four removable skylights located on top of each pump for major pump
barrel/pump column removal through the roof (a pump repair crane with fully extended outriggers would be
required to remove pump equipment through the roof for maintenance during operation). An underground
concrete vault would be constructed beneath the concrete masonry structure; the underground vault would
house pump columns and suction side valves. This substructure would be constructed of reinforced concrete
and would be 25 feet long and 15 feet wide by 15 feet deep, below the floor of the concrete masonry structure.
Other components of the pump station outside the concrete masonry structure would include a PG&E
transformer on an 8'/2-foot by 7'/z-foot concrete pad, a 20-foot rolling gate and driveway along Trousdale
Drive, a perimeter chain link fence with slats, a supervisory control and data acquisition (SCADA) tower, a
paved and graded parking area, and landscaping along the Trousdale Drive site frontage. The concrete
masonry structure and transformer pad would occupy 26 percent of the pump station area, which is less than
the 40 percent maximum lot coverage specified for the R-1 zoned site.
The concrete structure would also be architecturally designed and landscaped to blend with surrounding areas.
Land uses surrounding the pump station are noise-sensitive school and residential uses. Final design of the
project would include noise-abating features such as:
Trousdale Pump St�tion nnd Transmission Mnin Project —/nitial Study Page 10
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SOURCE: Olivia Chen Consultants
TROUSDALE PUMP STATION AND TAANSMISSION MAIN
FIGURE 7: TYPICAL UTILITY CROSSING
IV. ENVIRONMENTAL CHECKLIST AND DISCUSSION OF POTENTIAL
EFFECTS
This Initial Study evaluates the potential environmental effects of the Trousdale Pump Station and Transmission
Main Project (proposed project) as required by the California Environmental Quality Act (CEQA).
A. AESTHETICS
1. Setting
The project is located in the north end of the City of Burlingame, one block south of the City of Millbrae
border. The proposed pipe alignment runs along Trousdale Drive, from its intersection with Magnolia Avenue
at its eastern end, to Crystal Springs Watershed lands, just west of I-280, at its western end (see Figure 1).
Elevation along the alignment ranges from 29 feet to approximately 650 feet above sea level, and increases
westward. Generally, development character along the alignment is suburban, although intensity of
development increases eastward (towards El Camino Real, just east of Magnolia Avenue). From Sequoia
Avenue to Magnolia Avenue, development along Trousdale Drive consists of single-story medical office
buildings. From Sequoia Avenue [o I-280, development is characterized primarily by single family homes on
uniform-sized parcels with landscaped front lawns. Two- to three-story multiple family buildings and single
family dwellings are adjacent to the I-280 on/off-ramp. As previously described, single-story Franklin
Elementary School structures that are largely setback by surface parking areas and front lawns also contribute
to development character along Trousdale Drive. Figure 8 shows development character and existing views
along Trousdale Drive.
I-280 is an officially designated State Scenic Highway from the Santa Clara County line to the San Bruno city
limit. Part of discharge piping portion alignment would parallel I-280 before entering Crystal Springs
Watershed lands. A 1,200-foot portion of the alignment would run through Crystal Springs Watershed lands,
which are undeveloped and heavily vegetated. This area is bounded by a wire fence along its I-280 border.
The proposed pump station site is bordered to the north by Trousdale Drive, a four-lane major arterial which is
also designated a Local Scenic Route.4 There are superior views of the San Francisco Bay approximately 2.5
miles to the east from Trousdale Drive, particularly along the hilly portions. The site is bordered to the
northeast by a landscaped lawn within the Franklin Elementary School grounds and to the west by a sloped
berm and single family residences. The pump station abuts a sloped berm that is the property boundary with
the nearest residence to the west. Overall development character surrounding the pump station site is
suburban, consisting of Franklin Elementary School grounds and uniformly-parceled single family homes with
landscaped front lawns.
' City of Burlingame, General Plan, Scenic Roads and Highways, 1972.
Trousdale Pump Station and Transn�ission Main Project — Initinl Stud}� Pnge 18
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SOURCE: Square One Productions, 7.003
-E-I-P-
TROUSDALE PUMP STATION TRANSMISSION MAIN PROJEC�C
FIGURE 8: VIEW LOOKING EAST FROM LOCAL SCENIC ROUTE PORTION OF TROUSDALE DRIVE
An existing pump station occupies 2,600 square feet of the currently 4,100 square foot-pump station site. The
pump station is at an elevation of 124 feet above mean sea level, although the site itself is relatively flat.s The
existing pump station site is visible to vehicular or pedestrian passers-by along Trousdale Drive and to adjacent
residents, the closest of which has a tall fence surrounding the back yard that obscures the pump station.
However, the existing pump station is a minor feature along Trousdale Drive, occupying a small area and
partially concealed by vegetation. Components are unenclosed and consist of approximately 2-foot-tall bright
blue piping, pumps, and a control cabinet surrounded by an approximately 8-foot-tall chain link fence. Refer to
Figure 9, below, which depicts the existing pump station. An additional 1,500-square-foot landscaped lawn
would be purchased from the Burlingame School District for the proposed pump station expansion.
2. Environmental Checklist and Discussion
SigniGcant or Less Than Less-
Potentially Signiticant Than-
Significant With Mitigation Significant
Would the project: Impact Incorporated Impact No Impact
l) Have a substantial adverse effect on a scenic vista? � � � �
2) Substantially damage scenic resources, including 0 ❑ ■ 0
but not limited to trees, rock outcroppings, and
historic buildings within a state scenic highway?
3) Substantially degrade the existing visual character 0 � � �
or qualiry of the site and its surroundings?
4) Create a new source of substantial light or glare � � � �
which would adversely affect day or nighttime
views in the area?
Discussion:
Analysis for A.1. For this analysis, a scenic vista is considered a broad and expansive view of a significant
landscape feature, such as a mountain range, lake, or coastline, or a panoramic view of significant historical or
architectural features, such as views of the Golden Gate Bridge.b The project site is not part of a scenic vista.
However, the portion of Trousdale Drive, along where the pump station and portions of the transmission main
would be constructed, is a designated Local Scenic Road that features views of San Francisco Bay as viewers
travel eastward along this road. Views of the Bay as seen by travelers along the higher-elevation portion of
Trousdale Drive comprise the only scenic vista that may be affected by the project (refer to Figure 8).
5 Olivia Chen Consultants, New Trousdale Pump Station and Pipeline Conceptual Engineering Report, December 2004.
fi Based generally on City of Los Angeles Thresholds of Significance Guide, 2000.
Trousdale Pump Station an�l Transn7ission Main Project — lnitinl Stuciy Page 20
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SOURCE: EIP Associates
TROUSDALE PUMP STATION AND TRANSMISSION MAIN
FIGURE 9: EXISTING TROUSDALE PUMP STATION
During construction of the transmission main part of the project, views of the San Francisco Bay could be
partially obstructed for residents along Trousdale Drive. Large construction vehicles and equipment could be
parked or in use along Trousdale Drive due to construction occurring in the roadway. However, view impacts
would be momentary as viewers travel along the affected portion of Trousdale Drive. Construction would not
impact views of San Francisco Bay along the entire length of the Local Scenic Route portion of Trousdale
Drive because construction would be phased and would relocate/shift along the length of Trousdale Drive.
The proposed pump station project would have no substantial adverse effect on a scenic vista because there are
no scenic vistas on or near the proposed project site.
Analysis for A.2. No rock outcroppings, historic buildings, or similar resources exist on the site, and none
would be damaged through implementation of the project. As discussed above, I-280 is a State Scenic
Highway and the project would cross under the highway and parallel it for about 1,200 feet before reaching the
Mills Tank within Crystal Springs Watershed lands. It is expected that some trees would have to be removed
to create a pipeline easement and for construction access within the Watershed lands. However, the Watershed
lands are heavily vegetated and any tree removal would not be perceptible form the highway. Construction
would occur beneath the freeway, and not be visible to travelers. Therefore, impacts on scenic resources
adjacent to a State Scenic Highway would be less than significant.
Analysis for A.3. The proposed project has the potential to degrade the existing visual character or quality of
the site and its surroundings because (1) it would replace 1,500 square feet of landscaped area with pump
station components, and (2) it would involve temporary excavation and construction staging along Trousdale
Drive, a designated Local Scenic Road with a suburban development character. Expansion of the pump station
would alter views of the site from Trousdale Drive.
The City's General Plan contains the following two Action/Implementation Guidelines:
• SR(7): Utility lines should be underground wherever possible; and sensitively sited where
placement must be aboveground; and
• SR(8): Plant materials should be used to screen or hide objectionable views.
The transmission main portion of the project would be entirely underground, and plant ma[erials would be used
at the pump station site to screen the concrete structure and visually enhance the site. The upgraded pump
station and amenities would be housed in a 1,000-square-foot concrete masonry structure and set back
approximately 8 feet further than the existing facility. The property would be enclosed in chain link fence and
landscaping would be planted in front of the building along Trousdale Drive. The character of the pump
station site would thus change from that of visible pumps and accoutrements to that of a 10-foot high concrete
structure softened by vegetation. The existing pump station footprint is 2,600 square feet; this would be
extended by 1,500 square feet to the east beyond the existing property limits and result in a 4,100-square-foot
area that would aesthetically convey a more massive, solid structure compared to the existing chain link fence.
Nonetheless, the project is relatively small-scale and tucked alongside a steep berm that keeps it shaded most of
the day. Because the concrete structure would also be architecturally designed and landscaped to blend with
surrounding areas, this visual change would be considered a less-than-significant impact.
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During the construction phase, equipment and vehicles could degrade aesthetics along Trousdale Drive and in
the vicinity of the pump station. This impact on motorists, other passers-by, and residences within view would
be short-term and would not constitute a significant impact under CEQA.
IMPROVEMENT MEASURE. While the project's effect on visual quality would not be a significant effect
under CEQA, there are measures that the City could implement to further reduce the less-than-
significant impacts. Implementation of the following Improvement Measure would improve the
resulting visual character after project construction.
VQ-1. Install landscaping. The City shall install landscaping along the pump station fa�ade
fronting Trousdale Drive. Upon installation, the landscaping shall be large enough in scale
to shield the pump station features to the extent possible, and varieties used shall achieve a
complete screen upon maturity. The City shall be responsible for maintaining the
landscaping.
Analysis for A.4. The proposed pump station portion of the project would not create a new source of
substantial light or glare; therefore no impact on day or nighttime views would occur as a result of the project.
The roofing of the structure would be flat and made of standing seam metal. Thus any sunlight hitting the roof
would reflect upward and not toward passers-by or residences. While specific lighting details have not yet
been determined, external lighting would be installed at the pump station site to provide sufficient illumination
of the site to allow safe access by City employees at all times. Nonetheless, all external lighting would be low
beam and fitted with appropriate lenses to prevent light spillage.
3. Conclusion
Aside from temporary visual impacts related to construction, the proposed project would have no impact on
scenic vistas or damage scenic resources within a State Scenic Highway. The project would not create a new
source of substantial light or glare. Visual quality at the proposed pump station site would be altered due to
facility expansion; however measures to reduce this impact to less than significant would be taken.
B. AGRICULTURAL RESOURCES
1. Setting
The proposed Trousdale Pump Station and transmission main are located in an urbanized, developed area.
There are no agricultural resources located on or near the project site.
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2. Environmental Checklist and Discussion
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) Involve other changes in the existing environment
which, due to their location or nature, could result
in conversion of Farmland to non-agricultural
use?
Discussion:
Significant Less Than
or Potentially Signi6cant
SigniGcant With Mitigation
Impact Incorporated
❑ ❑
❑ ❑
❑ ❑
Less-
Than-
Significant
Impact No Impact
❑ ■
❑ ■
❑ ■
The proposed sites are not shown as Farmland pursuant to the 2000 data for the Farmland Mapping and
Monitoring Program of the California Resources Agency. The site is also not zoned for agricultural use or
under a Williamson Act contract. Because the project involves the replacement of an existing pump station on
the same and adjacent parcels within a developed area that does not include any Farmland, and construction of
the underground transmission main would be within a developed area that does not include any Farmland, the
project could not result in the conversion of Farmland to non-agricultural use.
3. Conclusion
The proposed replacement of the Trousdale Pump Station and construction of [he new transmission main would
not directly or indirectly result in the additional conversion of farmland to non-agricultural use. The proposed
project would have no impact on agricultural resources or operations.
C. AIR QUALITY
1. Setting
Air quality is monitored, evaluated, and regulated by federal, State, regional, and local regulatory agencies and
jurisdictions, including the United States Environmental Protection Agency (EPA), the California Air
Resources Board (CARB), and the Bay Area Air Quality Management District (BAAQMD). The EPA,
CARB, and BAAQMD develop rules and/or regulations to attain the goals or directives imposed by legislation.
Both State and regional regulations may be more, but not less, stringent than federal regulations. The CARB
establishes State ambient air quality standards and motor vehicle emission standards, conducts research, and
oversees the activities of regional Air Pollution Control Districts and Air Quality Management Districts. The
San Francisco Bay Area is designated as non-attainment for ozone under both State and federal standards, and
�
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non-attainment for particulate matter under 10 microns (PM�o) under State standards. Existing State and
federal air quality standards are depicted in Table 1. Reactive Organic Gasses (ROG) and nitrogen oxides
(NOX) are considered ozone precursors.
,
Table 1
Federal and State Air Quality Standards
Pollutant
Ozone
Carbon Monoxide (CO)
Nitrogen Dioxide (NOz)
Sulfur Dioxide (SOz)
Paniculate Matter (PMio)
Fine Particulate Matter (PMz.$)
Lead (Pb)
Averaging Time
1-hour
8-hour
1-hour
8-hour
1-hour
Annual Average
1-hour
3-hour
24-hour
Annual Average
24-hour
Annual Geometric Mean
Annual Arithmetic Mean
24-hour
Annual Arithmetic Mean
30-day Average
Calendar Quarter
California Standarda Federal Standard°
0.09 ppm
20.00 ppm
9.00 ppm
0.25 ppm
0.12 ppm
0.08 ppm
35.00 ppm
9.00 ppm
0.053 ppm
0.25 ppm
0.04 ppm
50 µg/m3
20 µg/m3
12 µg/m3
1.5 µg/m'
0.5 ppm
0.14 ppm
0.03 ppm
150 µg/m3
50 µg/m'
65 µg/m3
15 µg/m'
1.5 µg/m'
Source: Summarized by EIP Associates from BAAQMD CEQA Guidelines, 1996, revised 1999.
Notes:
ppm = parts per million by volume
µg/m' = micrograms per cubic meter
— = No standard exists for this category
a. California standards for ozone, CO, NOz, SOz, and particulate matter (PMio) are values that are not ro be exceeded.
b. Federal standards other than for ozone, particulates, and those based on annual averages are not to be exceeded more
than once a year. The 1-hour ozone standard is attained if, during the most recent three-year period, the average number
of days per year with maximum hourly concentrations above the standard is equa] to or less than one. The 8-hour ozone
standard is attained when the 3-year average of the 4'" highest daily concentrations is 0.08 ppm or less. The 24-hour
PM�o standard is attained when the 3-year average of the 99"' percentile of the monitored concentrations is less than
]50 µg/m3. The 24-hour PMz.s standard is attained when the 3-year average of 98'" percentile is less than 65 µg/m3.
Trousdnle Pump Sra�ion and Transmission Main Project — Initial Study
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Page 25
2. Environmental Checklist and Discussion
Would the project:
1) Conflict with or obstruct implementation of the
applicable air quality plan?
2) Violate any air quality standard or contribute
substantially to an existing or projected air quality
violation?
3) Result in a cumulatively considerable net increase
of any criteria pollutant for which the project
region is classified as non-attainment under an
applicable federal or state ambient air quality
standard including releasing emissions which
exceed quantitative thresholds for ozone
precursors?
4) Expose sensitive receptors to substantial pollutant
concentrations?
5) Create objectionable odors affecting a substantial
number of people?
Discussion:
Significant Less Than
or Potentially Signiticant
SigniGcant With Mitigation
Impact Incorporated
❑ ❑
❑ ■
❑ ■
❑ ■
❑ ❑
Less-
Than-
Significant
Impact No Impact
■ ❑
❑ ❑
❑ 0
❑ ❑
■ ❑
Analysis for C.1. To comply with the California and Federal Clean Air Acts, BAAQMD has written the Bay
Area 2001 Ozone Attaininent Plan. The intent of this air quality plan is to bring the San Francisco Bay Area
Air Basin into compliance with federal and State s[andards for ozone. The plan consists of adopted measures,
emission inventories, contingency measures, and demonstration of emission reductions so the region would
reach attainment of current ozone standards. The proposed project would not result in a significant increase in
the precursors to ozone, and therefore would not conflict with or obstruct implementation of the BAAQMD's
air quality plans to bring the Air Basin into attainment. There is currently no State plan established to meet
State PM�o measures.
Analysis for C.2. The proposed project would generate short-term air emissions associated with construction
activities. Operation of the pump station and underground piping connecting water mains to the existing
storage tank would generate minimal air emissions. The pump station would be electrically powered and
would not generate any emissions. The standby emergency generator would be diesel powered, but it would be
operated only in the event of emergencies or periodic testing, and would not constitute an on-going source of
emissions. The associated diesel storage tank is proposed to be a 1,800-gallon, above-ground storage tank that
would have relatively low air emissions due to the low boiling point of diesel and is exempt from permitting
status by the BAAQMD (BAAQMD Regulation 1, Rule 2). Therefore, this analysis focuses solely on air
'
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quality impacts during construction of the new pump station building, demolition of existing building, and
replacement of underground piping.
�
�
The proposed project consists of different phases of construction, which include demolishing the existing pump
station and building the new pump station, and installing the underground piping in various segments.
Construction activities associated with the proposed project would generate PM�o from grading, demolition,
trenching, and earthmoving activities. Dust and equipment exhaust generated by construction activities could
pose a nuisance to the nearby Franklin Elementary School, residential areas, and hospital uses. It should be
noted that construction of the Peninsula Medical Center Replacement Project along Trousdale Drive and El
Camino Real is ongoing as of the preparation of this document and is anticipated to continue for approximately
six more years, thus contributing to localized air quality during construction of the proposed project,
particularly within the eastern portions of the alignment. Nonetheless, dust emission from construction of the
proposed project would be a potentially significant impact on a localized level.
NOX, ROG, and CO emissions would be generated from diesel fumes associated with the operation of
construction equipment. Construction projects using typical construction equipment, which temporarily emit
ozone precursors are already included in the emission invenrories of State- and federally-required air plans and
would have a less-than-significant impact on attainment and maintenance of air quality standards.
MITIGATION MEASURE. Using the methodology outlined in the BAAQMD CEQA Guidelines, for
projects with less than 4 acres per day of ground disturbance during construction, basic control
measures such as watering, covering loose materials during transport, and sweeping would be sufficient
to reduce PM�o to less-than-significant levels.' Implementation of Mitigation Measure AQ-1, below,
would reduce potentially significant dust emissions to a less-than-significant level.
AQ-1. Implement feasible control measures for construction emission of PM�o. The City shall
implement the following mitigation measures during project construction, in accordance
with BAAQMD standard mitigation requirements:
• water all active construction areas at least twice daily;
• cover all trucks hauling soil, sand, and other loose materials or require all trucks to
maintain at least 2 feet of freeboard;
• pave, apply water three times daily to, or apply (non-toxic) soil stabilizers on all
unpaved access roads, parking areas and staging areas at construction sites;
• sweep daily (with water sweepers) all paved access roads, parking areas and staging
areas at construction sites; and
• sweep streets daily (with water sweepers) if visible soil material is carried onto
adjacent public streets.
' BAAQMD, BAAQMD CEQA Guidelines, Assessing the Air Quality Impacts of Projects and Plans, April 1996,
revised December 1999.
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Analysis for C.3. Construction of the pump station and installation of the transmission main would
temporarily increase air emissions in the San Francisco Bay Area Air Basin, which is designated as non-
attainment for ozone at the federal and State level and PM�o at the State level. Construction of other,
foreseeable projects within the vicinity of the proposed project could result in localized cumulative impacts
related to construction emissions. Other, foreseeable projects in the vicinity include construction of the
Peninsula Medical Center at Trousdale Drive and EI Camino Real, and assisted living facility along Trousdale
Drive, and residential projects along California Drive, Ogden Drive, Trousdale Drive, and El Camino Real
(see Checklist Item Q, Mandatory Findings of Significance, for a list of cumulative projects).
Individually, the proposed project, as noted above, would temporarily increase PM�o emissions during
excavation, trenching, and grading. Resulting dust emissions from the proposed project would be a potentially
significant impact. BAAQMD CEQA Guidelines recommend that if the proposed project would individually
have a significant air quality impact there would also be a significant cumulative air quality impact.
Construction equipment would generate ROG and NOX emissions through diesel exhaust during construction
activities. Since the Bay Area is designated as non-attainment for ozone, cumulative emissions would
contribute to an existing air quality problem. However, as noted above, the construction equipment associated
with the ROG and NOX emissions would already be included in the emission inventories and would not have a
cumulatively signifcant impact.
MITIGATION MEASURE. Implementation of Mitigation Measure AQ-1, involving basic dust control
measures, would reduce construction dust emissions to less than significant. Therefore, this measure
would reduce the project's contribution to air emissions to less than cumulatively considerable.
Analysis for C.4. The proposed pump station is situated among single-family residential neighborhoods and
shares a property line with Franklin Elementary School. The proposed transmission main would be installed
within Trousdale Drive fronting Franklin Elementary School, flanking primarily residential zones ro the west
and commercial, offce, and hospital uses on the east end of the transmission main. Ground disturbing
activities would create a potentially significant localized increase in PM�o emissions on sensitive receptors.
MITIGATION MEASURE. Implemen[ation of Mitigation Measure AQ-1, involving basic dust contro]
measures, would reduce the impact of PM�o emissions on sensitive receptors to a less-than-significant
level .
Analysis for C.S. Residents, schools, and businesses in close proximity to the construction areas may
experience occasional odors from diesel equipment exhaust during construction. This effect would be
intermittent, would be contingent on prevailing wind conditions, and would occur only during construction
activities. Operation of the proposed project would not generate any odors with the exception of diesel exhaust
from the standby generator for the proposed pump station. As noted above, other than in emergency situations
when electrical power is unavailable, the standby generator would be operated only for periodic testing. The
frequency of this testing will be specified by the BAAQMD permit to operate. Because the generation of diesel
odors would be periodic, and because these emissions would not affect people outside of the immediate vicinity
of the project site, the impact is considered less than significant.
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3. Conclusion
With implementation of basic dust control measures specified under Mitigation Measure AQ-1, the proposed
project would not exceed significance thresholds for air quality standards during construction. Operational
emissions of the project would be limited to a standby generator that would be used only for emergencies and
periodic testing. Operation of the generator would be subject to BAAQMD regulations. Therefore, the
proposed project would have a less-than-significant impact on air quality after mitigation.
D. BIOLOGICAL RESOURCES
1. Setting
General. The pipeline alignment was either walked or driven by EIP biologists on June 29, 2005. All
observed species of plants and animals were identi�ed. Along most of the alignment, the pipeline would be
placed below Trousdale Drive itself, thereby avoiding impacts to biological resources. The following
discussion focuses on biological resources present at the proposed pump station and the discharge pipeline from
the western end of Trousdale Drive, near I-280, to the Mills Tank (see Figure 1), within Crystal Springs
Watershed lands. Because the precise location of the pipeline was unknown at the time of the survey, surveys
included an approximately 100-foot wide swath of land immediately west of the I-280 right-of-way fence,
wherein the alignment would be located. The 100-foot swath would include areas to be disturbed as part of
project construction. The length of the alignment within Crystal Springs Watershed lands would be about
1,200 feet, from Trousdale Drive to the Mills Tank.
Pump Station. The proposed Trousdale Pump Station site currently supports non-native weedy grassland
� vegetation. Examples of herbaceous species found include ripgut brome (Bromus diandrus), Mediterranean
barley (Hordeum marinum ssp gussoneanum), Italian ryegrass (Lolium multiflorum), and rough cat's ear
(Hypochaeris radicata). No sensitive plant or animal species were observed at this location.
Suction Piping. The proposed suction piping would be a buried connection from the SFPUC water supply
turnouts to the proposed Trousdale Pump Station. This alignment is entirely within the existing street right-of-
way. There are no biological resources within this alignment.
Discharge Piping. When the discharge portion of the pipeline reaches the western end of Trousdale Drive, the
pipeline turns to the north and parallels I-280 for about 1,200 feet before reaching the Mills Tank. This
portion of the pipeline is entirely within the Crystal Springs Watershed lands owned and managed by the
1 SFPUC. This area is considered a game refuge by the CDFG. Biological resources within this area are
discussed in the following paragraphs.
Vegetation. The plant communities within the Watershed lands fall into three categories: scrub-grassland
mosaic, acacia-pine forest, and eucalyptus forest. The scrub-grassland mosaic is a mix of native scrub species
such as coyote bush (Baccharis pilularis), coffeeberry (Rharrtnus californica), and toyon (Heteromeles
arbutifolia) that are interspersed with non-native grasslands. Non-native shrubs such as Scotch and French
broom (Cytisus scoparius and Genista monspessulana) also occur within this area. This habitat is found at the
western end of Trousdale Drive. Just north of the mosaic, along a small drainage channel from I-280 is a
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forest of Monterey pine and blackwood acacia (Acacia melano�rylon) trees. The understory of this forest is
relatively open but does support poison oak (Toxicodendron diversilobum), California blackberry (Rubus
ursinus), and some toyon bushes along the edges of the forest. Further north, the acacia-pine forest is replaced
by a stand of blue gum (Eucalyptus globulus). There are coast live oaks mixed in with the blue gum, but they
are relatively small and few in number. Because there is evidence of tree removal, pruning, and on-site
chipping, the forest appears to have been thinned by SFPUC as part of their ongoing fre management efforts.
The understory of this forest is a mix of non-native grasses, poison oak, French broom, and blue gum saplings.
No sensitive plant species or plants that require serpentine soils were observed within the study area.
Animals. The animal species that use this area are relatively common birds, reptiles, and mammals. Only nine
species of birds were observed, none of which are considered sensitive species. These species likely nest
within the area although no nests were observed. A pygmy nuthatch (Sitta pygmaea) was observed carrying
food near the water tank, indicating a nest was nearby. No raptors or raptor nests were observed. The only
reptile observed was a single western fence lizard (Sceloporus occidentalis), a relatively common species in
grassland and scrub habitats. Evidence of three different mammals was found. The burrows of Botta's pocket
gophers (Thomomys bottae) and black-tailed deer (Odocoileus hemionus) scat were found within the proposed
alignment. Neither of these are sensitive species. Two San Francisco dusky-footed woodrat (Neotoma fuscipes
annectens) nests were observed near the edge of the blue gum forest and the I-280 right-of-way fence. Both of
these appeared to be active because the openings were clear of spider webs and there was some relatively fresh
plant debris nearby, probably left after foraging. The first nest is 5 to 10 feet west of the Watershed boundary
fence and the second is just south of the first. Both nests have been constructed in the center of very large
poison oak bushes. San Francisco dusky-footed woodrats are a species of special concern to CDFG. There
was no aquatic habitat within the project area that would be suitable for use by amphibians.
Sensitive Species. Review of the California Natural Diversity Database (CNDDB) for the project area occurred
prior to conducting fieldwork. The project is located within the Montara Mountain USGS 7.5-minute
quadrangle. The surrounding quadrangles are San Francisco South, Hunters Point, San Mateo, Half Moon
Bay, and Woodside. A query of all six maps results in a list of 45 species of plants, 37 animals, and four
habitats.$ The only species observed onsite was the San Francisco dusky-footed woodrat. Many of the species
on this list require wetlands or other aquatic resources, serpentine soils, or the plants found on serpentine soils.
None of these resources exist within the project site or the immediately surrounding areas.
R CNDDB 2005, California natural diversity database v3.0.5. Information dated July 1, 2005.
�
��
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�
2. Environmental Checklist and Discussion
WOuld the project:
l) 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 Game or U.S. Fish and Wildlife Service?
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 California Department of Fish
and Game or U.S. Fish and Wildlife Service?
3) Have a substantial adverse effect on federally
protected wetlands as defined by Section 404 of
the Clean Water Act (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?
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?
Discussion:
SigniFicant or Less Than
Potentially Signi6cant With
Signi6cant Mitigation
Impact Incorporated
❑ ■
❑ ❑
0 ❑
❑ ■
❑ ❑
❑ ■
Less-Than-
Significant
Impact No Impact
❑ ❑
❑ ■
❑ ■
❑ ❑
❑ ■
❑ 0
Analysis for D.1. As mentioned above, the project corridor is generally paved, and therefore supports no
biological resources. The only sensitive resource found within the project area is the San Francisco dusky-
footed woodrat. Two nests were found adjacent to the pipeline alignment. For the 1,200-foot length of the
alignment within Crystal Springs Watershed, it is estimated that a 30-foot wide area would need to be cleared
to accommodate construction. The location of [he woodrat nests was used in placement of the pipeline
alignment and a 30-foot equipment exclusion buffer has been included from the Watershed fence to the edge of
the construction right-of-way. Overall, no more than 36,000 square-feet of vegetation would be removed from
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Watershed lands. All of this vegetation would be more than 30 feet from the fence line. Because the locations
were used during pipeline design, the woodrat nests are all within the 30-foot buffer and no existing woodrat
nests would be removed during construction. Therefore, construction activity related to installation of the
discharge piping would have a less-than-significant impact on dusky-footed woodrat nests. Ample vegetation
would remain in the general area to provide foraging and cover for woodrats. However, because construction
of the discharge piping alignment is not expected to start until July 2007, it is possible that additional woodrat
nests could be built within the construction right-of-way. If this were to happen, these nests would be impacted
by the project. This is considered a potentially significant impact. Addi[ionally, any trenches left open
overnight create pit-fall hazards for local wildlife including the woodrat. Should woodrats become trapped in
the trench, they could become easy prey for predators or may be buried when construction resumes. '
Therefore, because this species is considered a species of special concern by CDFG, any loss of nests built
within the right-of-way or loss of individual woodrats resulting from entrapment would be considered a
potentially signifcant impact.
MITIGATION MEASURES. Mitigation Measures BIO-1 and BIO-2, below, would minimize the project-
related effects on dusky-footed woodrat and reduce impacts to a less-than-significant level. Mitigation
Measure BIO-3 would minimize the potential project-related effects on previously unknown sensitive
wildlife species and reduce impacts to a less-than-significant level.
BIO-1. Conduct woodrat surveys and apply trapping and relocation as needed. The following
mitigation measures apply to potential impacts to dusky-footed woodrat associated with
installation of the pipeline near active woodrat nests.
(a) Before construction starts, but once the construction footprint and final pipeline
location have been determined and staked, the exact number and location of
woodrat dens that could be impacted by the project shall be determined. A
qualified biologist shall conduct a survey of the project area and a 30-foot buffer to
determine the location of existing woodrat dens. Data shall be recorded and
mapped in relation to the construction footprint. No mitigation shall be required
for those woodrat dens located 30 feet or more from the construction zone. A
30-foot equipment exclusion buffer shall be established around dens that shall not
be removed and are in close proximity to the construction area. Within these
buffer zones, all vegetation shall be retained and nests shall remain undisturbed. If
it is determined that the project would directly or indirectly impact the nests or
habitat within the buffer areas, the den(s) shall be removed and relocated to
suitable habitat within the project vicinity in accordance with the methods described
below. If woodrat nests are outside of the construction area and 30-foot buffer,
impacts to woodrats is considered less than significant and no further mitigation is
required. Mitigation measure BIO-2 shall be implemented regardless of the
woodrat nest location in relation to the project.
(b) If it is determined by the pre-construction survey that specific woodrat nests would
be destroyed or impacted as a result of project construction, a trapping and
relocation program shall be implemen[ed to re-establish individual woodrats in
nearby suitable habitat. If suitable habitat is not available for relocation of the
woodrats, off-site locations shall be identified.
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Trapping of the woodrats shall be conducted by a qualified biologist with a current
CDFG collection permit to trap the species, and relocate the animals. The trapping
shall occur outside of the breeding period, between September and December.
�
Two trapping methods shall be employed in order to trap and relocate as many
resident woodrats as possible. The first method shall involve use Tomahawk live
traps measuring approximately 5 inches by 5 inches by 16 inches, and baited with
oatmeal, peanut butter, and fresh apples.
Traps shall be placed in close proximity to the woodrat house and checked
everyday. Trapping may be discontinued after three days if no rodents are caught.
Species caught in the traps shall be recorded, and a general description of their size
and health described and recorded including all non-woodrat species. Trapping
shall not be done during heavy rains or during full moons because the animals tend
ro stay in their houses during these events.
The second method of trapping shall be used after the live traps have been set and
checked for rodents. Biologists shall install a containment fence around each
woodrat den and then take the den apart and catch any woodrats that try to escape.
Woodrat house materials would be collected along with the woodrats, and relocated
to a designated area identified during the pre-construction habitat survey. Trapped
woodrats and their den materials would be relocated and released at the same time.
Regardless of whether any woodrats are caught, the woodrat dens that would be
destroyed during construction shall be removed and relocated.
(c) Following trapping of a woodrat via either of the previous two methods, den
materials shall be collected by hand and placed into bags for transportation to the
relocation area identified during the pre-construction survey.- Trapped woodrats
and their den materials shall be relocated and released at the same time. A
minimum of 75 percent of the nest materials shall be collected from the original
dens. Den materials shall be placed in a pile near a tree or rock in an area with
similar overstory and understory characteristics as its original location. Understory
vegetation shall be dense and provide abundant locations for den construction.
Previous work on habitat selection by woodrats suggests that animals prefer areas
with over 90 percent canopy cover.y Ideal areas would be close to willow thickets,
poison oak patches, or Coast live oak concentrations that provide abundant shade.
If possible, they shall also be located near a water source or small stream.
BIO-2. Cover and inspect trenches. To avoid harming any animals trapped in open trenches that
are left overnight, all trenches shall either be �lled, tightly sealed, or have exit ramps of
wood or soil installed at the conclusion of each workday. Regardless of the method
� chosen, any unfilled trenches shall be inspected each morning prior to the start of
construction. If wildlife is trapped in the trench, it shall either be captured by a qualified
wildlife biologist and released, or an exit ramp shall be installed and the animal allowed to
exit the trench and construction area on its own.
9 Vogl, R.J., Woodrat densities in southern California manzanita chaparral, Southwestern Nat. 12:176-179, ]967.
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BIO-3. Comply with SFPUC procedures in Crystal Spring Watershed lands. All work in the
Watershed lands shall comply with procedures set forth in the SFPUC's Peninsula and
Alameda Watershed Field Manual.'0 The manual shall be distributed to all employees
working in Watershed lands. Prior to commencing work, employees shall familiarize
themselves with the sensitive wildlife species that may occur in project area. Also, in the
event that previously unidentifed protected plant and animal species are discovered within
or adjacent to the work area, protective measures to ensure minimal resource disturbance
shall be in place. 'Protective measures shall be approved by the SFPUC's Land and
Resources Management Section (LRMS), shall be implemented by qualified resource
specialists, and may necessitate consultation with, or permits from, CDFG or US Fish and
Wildlife Service (USFWS).
Analysis for D.2 and D.3. Sensitive habitats reported in the CNDDB include northern coastal salt marsh,
northern maritime chaparral, serpentine bunchgrass, and valley needlegrass grassland." The project corridor
does not support any wetland habitats, nor are there any chaparral or salt marsh wetlands. Serpentine
grasslands are found only over serpentine soils, which where not observed within the project area. Therefore,
the project would not affect either sensitive communities as defined by CDFG or USFWS, or wetlands as
defined by the Clean Water Act and regulated by the US Army Corps of Engineers (Corps).
Analysis for D.4. Most of the transmission main is below Trousdale Drive, which traverses a generally
urbanized area. This portion of the project does not function as a wildlife corridor. Within Crystal Springs
Watershed lands, the transmission main would be buried, and would therefore not have a long-term impact on �
local wildlife movement. During construction, areas of open trench may present localized barriers to
movement; however, it is expected that these trenches would be temporary as the main is installed and the
trench back-filled. If the trench on Watershed lands is left open and uncovered, it could disrupt the movement
of local wildlife. Although this would be a temporary impact, it is still considered potentially significant.
Removal of vegetation could result in the loss or disturbance of nesting birds. Depending on the timing and
species affected, vegetation removal could result in a potential violation of CDFG Code (Sections 3503, 3513,
or 3800) and the Migratory Bird Treaty Act if it results in destruction of bird nests, thereby resulting in a
potentially significant impact on bird nests.
MITIGATION MEASURE. Implemen[ation of Mitigation Measure BIO-2, above, would prevent animals
from becoming trapped in the trench. Implementation of Mitigation Measure BIO-4, below, would
ensure compliance with State and federal regulations regarding impacts to nesting birds, thereby
reducing impacts to less-than-significant levels.
BIO-4. Conduct pre-construction survey for nesting birds. The removal of trees, shrubs, or weedy
vegetation should avoid the February 1 through August 31 bird nesting period to the extent
possible. ]f no vegetation or tree removal is proposed during the nesting period, no
surveys are required. If it is not feasible to avoid the nesting period, a survey for nesting
10 San Francisco Public Utilities Commission, Land and Resources Management Section, Peninsula and Alameda
Watershed Field Manual: Procedure for Protecting Watershed Lands, Version 1, July 2001.
" CNDDB 2005, California natural diversity database v3.0.5, information dated July 1, 2005.
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�
birds should be conducted by a qualified wildlife biologist no earlier than 14 days prior to
the removal of trees, shrubs, grassland vegetation, buildings, or other construction activity.
Survey results shall be valid for 21 days following the survey. The area surveyed should
include all construction areas as well as areas within 150 feet outside the boundaries of the
areas to be cleared or as otherwise determined by the biologist.
In the event that an active nest is discovered in the areas to be cleared, or in other habitats
within 150 feet of construction boundaries, clearing and construction shall be postponed for
at least two weeks or until a wildlife biologist has determined that the young have fledged
(left the nest), the nest is vacated, and there is no evidence of second nesting attempts.
Analysis for D.S. Within the Crystal Springs Watershed lands, it is expected that some trees would have to be
removed to create a pipeline easement and for construction access. However, these are all non-native species
and are not protected by Title 11 of the City's Municipal Code or the Peninsula Watershed Management
Plan.'2 Additionally, the fire management plan for the Watershed lands specifically allows for the complete
removal and restoration of eucalyptus forests. The removal of trees within the pine/acacia forest is similarly
allowed for as long as a minimum of 50 trees per acre is retained.13 Implementation of Mitigation Measure
BIO-3, above, would also reduce potential impacts from tree removal. According to the Peninsula and
Alameda Watershed Field Manual, tree removal must be authorized by a LRMS Forester. Therefore, the
project would not conflict with local policies or ordinances protecting biological resources, such as tree
� preservation policy or ordinance.
Analysis for D.6. The proposed project would not conflict with any known habitat conservation plans, natural
community conservation plans, or other approved local or regional conservation plans. This is because there
are no approved conservation plans that apply to the project area. The Peninsula Watershed Management Plan
guides the SFPUC in their management of the Crystal Springs Watershed. The primary goal of this plan is to
maintain and improve water quality. However, secondary goals include preservation and enhancement of
ecological resources within the Watershed. This project does not conflict with any of the vegetation
management policies presented in the Watershed or fre management plans. As discussed above, most of the
vegetation that would be impacted by the project is non-native. Additionally, no sensitive plants or plant
communities were observed within the pipeline alignment. The survey work conducted for this project satisfes
the requiremen[s of Policy V 15 of the Peninsula Watershed Management Plan, which requires a site-specific
analysis prior to project implementation. Wildlife management policies require preservation and protection of
native wildlife and their habitat. Without implementation of the mitigation measure associated with potential
' impacts to the San Francisco dusky-footed woodrat, the project would be in conflict with wildlife management
polices. Project impacts would thus be significant without mitigation.
MITIGATION MEASURES. Implementation of Mitigation Measures BIO-1 and BIO-2 above would
preserve and protect the San Francisco dusky-footed woodrats within the project alignment and reduce
impacts to a less-than-significant level.
"- EDAW for San Francisco Public Utilities Commission, Peninsula Watershed Management Plan, Spring 2002.
13 EDAW for San Francisco Public Utilities Commission, Fire Management Plan - Peninsula Watershed, March 2005.
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3. Conclusion
The majority of the project would take place in areas that are either urban (Trousdale Drive) or highly
influenced by nearby urban activities (the pump station). The only sensitive biological resource within the
potential pipeline alignment is the San Francisco dusky-footed woodrats found nesting on Crystal Springs
Watershed lands. If pipeline construction requires removal of these nests, mitigation has been established to
offset this impact. If pipeline construction avoids these nests, impacts to the species are considered less than
significant. There are no known occurrences of other sensitive plants, animals, or habitats within the proposed
alignment of the pipeline.
E. CULTURAL RESOURCES
1. Setting
For the purposes of this analysis, cultural resources are divided into historic resources, archaeological
resources, and paleontological resources. A cultural resource assessment was prepared for the proposed
project by William Self Associates, Inc. in September 2005. The assessment was based on (1) a records search
with the California Historical Resources Information System, Northwest Information Center (CHRIS/NWIC),
California State University Sonoma, Rohnert Park (CHRIS/NWIC File No.,01-1514), and (2) a field survey of
the portion of the project alignment that was not covered by previous surveys, which is [he portion of the
alignment that would run within Crystal Springs Watershed lands. It should be noted that the CHR1S/NWIC
records search, File No. O1-]514, was conducted by William Self Associates as part of the Cultural Resource �
Assessment of Alternative Routes for PG&E's Jefferson-Martin Transmission Line�4 and included a'/a-mile
buffer around the length of Trousdale Drive, between Skyline Boulevard (adjacent to I-280) and El Camino
Real.
Historic Resources. Historic resources typically include stone or adobe foundations or walls, structures, and
remains with square nails, and refuse deposits (often found in old wells and privies). The State Office of
Historic Preservation has also determined that buildings and structures 45 years and older may be of historic
value.
According to the CHRIS/NWIC search conducted by William Self Associates as part of the Cultural Resource
Assessment of Alternative Routes for PG&E's Jefferson-Martin Transmission Line, State and federal inventories
list no historic properties within or adjacent to the proposed project site.
Prehistoric Archaeological Resources. Prehistoric archaeological resources typically include chert or
obsidian flakes, projectile points, mortars and pestles, and dark friable soil containing shell and bone, dietary
debris, heat-affected rock, and/or human burials. Native American cultural resources in the portion of San
Mateo County where the project is ]ocated have been found on terraces adjacent to intermittent or perennial
creeks or springs, along ridges, and on broad or moderately wide mid-slope terraces.
'a Brown, Kyle, Adam Marlow, James Allan and William Self, Cultural Resource Assessment of Alternative Routes for
PG&E's Jefferson-Martin Transmission Line San Mateo County, California, 2003.
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' According to the September 2005 cultural resource assessment for the proposed project, one previously
recorded cultural resonrce site is located within the project site, while five additional resources are located
within �/a mile of the survey area (see Table 2).
Table 2
Prehistoric Archaeological Sites in the Vicinity of the Project Site
�
Cultural Resource
CA-SMA-74
CA-SMA-76
CA-SMA-90
CA-SMA-91
CA-SMA-300
Distance from
Alignment
Paleontological Resources. Paleontological resources are the fossilized remains and/or traces of prehistoric
plant and animal life exclusive of human remains or artifacts. Fossil remains, such as bones, teeth, shells, and
wood, are found in geologic deposits (rock formations). Although no paleontological sites have been
discovered specifically within the project site, paleontological resources or prehistoric fossils have been
discovered throughout San Mateo County, usually on the western coastline.
Prehistoric
Prehisroric
Prehistoric
Prehistoric
Prehistoric
C-118
Within Alignment
Within '/a mile
Within '/a mile
Within '/a mile
Within '/a mile
Within '/a mile
Source: William Self Associates, Inc., 2005.
� As listed in Table 2, CA-SMA-74 is the only prehistoric archaeological site that occurs within the project
alignment. The site was originally recorded by L. L. Valdivia in 1950 and was described as an open feld with
several soil mounds. The original records report the presence of four fragmentary burials observed when
portions of the site were bulldozed for 1950s-era development. Although the majority of the site area,
delineated by Barbara Bocek in 1990, is flat and is now covered by modern offce and commercial buildings
and associated landscaping, evidence of CA-SMA-74 has been observed in a vacant lot near the project
alignment.
2. Environmental Checklist and Discussion
Would the project:
1) Cause a substantial adverse change in the
significance of an historical resource as defined in
§15064.5?
Description
Prehistoric; midden with human burials
Significant Less Than
or Potentially Signi6cant
Significant With Mitigation
lmpact Incorporated
❑ ❑
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Less-
Than-
SigniGcant
Impact No Impact
❑ ■
Pnge 37
2) Cause a substantial adverse change in the
significance of an archaeological resource as
defined in § 15064.5?
3) Directly or indirectly destroy a unique
paleontological resource or site, or unique geologic
feature?
4) Disturb any human remains, including those
interred outside of forma] cemeteries?
Discussion:
❑ ■
❑ ■
❑ ■
❑ ❑
❑ ❑
❑ ❑
Analysis of E.1. No historic structures exist within the project footprint, which includes the existing pump
station site, landscaped school grounds (to be purchased and converted to the expanded pump station facility), a
portion of the Trousdale Drive right-of-way, and undeveloped Crystal Springs Watershed lands. The only
demolition involved with the project would be removal of existing pump station facilities, which are not
historic structures. The project would thus not directly impact any historic structures. Construction of the
proposed project would not include major ground-disturbing activities, such as pile driving, which could result
in groundborne vibrations impacting historic structures in the vicinity. Therefore, the project would have no
impact on historic resources.
Analysis of E.2, E.3, and E.4. The potential for the project to impact sensitive archaeological resources is
directly related to the likelihood that such resources are present and whether they are actually encountered
during project development and conswction activities. As discussed above, one prehistoric archaeological site
(CA-SMA-74) has been recorded within the proposed suction piping alignment. This site has been largely
destroyed through previous development, although evidence of the site has been observed in a nearby vacant
lot. Additionally, unknown and potentially significan[ cultural resources could exist within o[her portions of
the project site. Inadvertent impacts to subsurface archaeologica] resources within and in the vicinity of the
project site could occur during construction. Because there is a potential for disturbing prehistoric
archaeological resources associated with CA-SMA-74 and other unknown resources, impacts are considered to
be potentially significant.
MITIGATION MEASURES. Mitigation Measures CR-1 through CR-6, below, would reduce impacts on
prehistoric archaeological resources to less than significant.
CR-1. Retain Project Archaeologist. Based on the potential that portions of archaeological site
CA-SMA-74 or other previously unknown prehistoric or historic cultural deposits may be
encountered elsewhere along the project alignment during excavations, the City shall retain
the services of a qualified archaeological consultant meeting federal criteria under 36 CFR
61, and who has expertise in California prehistory and urban historical archaeology. The
archaeological consultant (hereinafter referred to as the Project Archaeologist) shall
oversee the execution of the mitigation measures presented below.
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�
�
�
CR-2. Implement Avoidance. CA-SMA-74 is the only known prehistoric archaeological site
located within, or immediately adjacent to the project site. The recorded site boundaries of
CA-SMA-74 that fall within the project alignment shall be designated as an
Environmentally Sensitive Area (ESA). The Project Archaeologist shall instruct
construction personnel and equipment operators on how to avoid the ESA. In the event
that previously unidentified buried cultural resources are encountered during construction,
work in the immediate area of the fnd shall be halted and the Project Archaeologist shall
notify the City of Burlingame immediately.
CR-3. Conduct Construction Personnel Training. All construction personnel shall be trained
regarding the recognition of possible buried cultural remains, including prehistoric and
historic resources during construction, prior to the initiation of construction or ground-
disturbing activities along the entire project alignment. The Project Archaeologist shall
complete training for all construction personnel. Training shall inform all construction
� personnel of the procedures to be followed upon the discovery of archaeological materials,
including Native American burials. The following issues shall be addressed in training or
in preparation for cons[ruc[ion:
• Any excavation contract (or contracts for other activities that may have subsurface soil
impacts) shall include clauses that require construction personnel to attend training so
they are aware of the potential for inadvertently exposing buried archaeological
deposits.
• The Project Archaeologist s6a11 provide a background briefing for supervisory
construction personnel describing the potential for encountering cultural resources, the
location of the ESA, and procedures to treat unexpected discoveries.
• Upon discovery of potential buried cultural materials, work in the immediate area of
the find shall be halted and the Project Archaeologist notified. Once the find has been
identifed, the Project Archaeologist shall make the necessary plans for treatment of the
� find(s) and for the evaluation and mitigation of impacts if the finds are found to be
significant according to CEQA.
CR-4. Develop Cultural Resources Treatment Plan. In the event that previously unidentified
cultural resources are discovered along the project alignment, the Project Archaeologist
shall develop a Cultural Resources Treatment Plan (CRTP) for submission to and approval
by the City of Burlingame. The CRTP shall include procedures for protection and
avoidance of the ESA and evaluation and treatment of the unexpected discovery of cultural
resources including Native American burials; detailed reporting requirements by the
Project Archaeologist; curation of any cultural materials collected during the project; and
requirements that specify that archaeologists and other discipline specialists meet the
Professional Qualifications Standards mandated by the California Office of Historic
Preservation (OHP). The CRTP shall be submitted to the City of Burlingame for review
and approval at least 30 days before the start of construction.
�
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CR-5. Conduct Construction Monitoring. The Crystal Springs Watershed lands are free of
developmeni and, thus, have not been disturbed or previously monitored extensively for
cultural resources during construction activities. Archaeological monitoring shall be
conducted in the Crystal Springs Watershed lands by a qualified archaeologist familiar with
the types of historic and prehistoric resources that could be encountered along the project
corridor within the Watershed lands. Intermittent monitoring may occur in areas of
moderate archaeological sensitivity at the discretion of the principle archaeologist. Native
American monitors may be required at the discretion of the Project Archaeologist.
CR-6. Comply with SFPUC procedures in Crystal Spring Watershed lands. All work in the
Watershed lands shall comply with procedures set forth in the SFPUC's Peninsula and
Alameda Watershed Field Manual.15 The manual shall be distributed to all employees
working in Watershed lands. Upon discovery of buried cultural resources, employees must
immediately stop digging and contact the SFPUC's Land and Resources Management
Section for further instruction.
3. Conclusion
Construction activities associated with the Trousdale Pump Station and Transmission Main Project could
contribute to the loss of significant cultural resources if known or previously unidentified cultural resources are
impacted without mitigation. Such an occurrence would be a significant impact under CEQA. However, with
proper environmental planning and implementation of the above mitigation measures, the project is expected to
successfully preserve signifcant cultural resources, and can provide opportunities for increasing our
understanding of past environmental conditions and cultural history.
F. GEOLOGY AND SOILS
1. Setting
The project site is in the Coast Ranges geomorphic province, in eastern San Mateo County, on the broad
alluvial plain adjacent to the San Francisco Bay. The region is in the seismically active San Andreas Fault
System, close to the main trace of the San Andreas fault. The San Andreas fault is just outside the City's
western limits, about 0.4 miles east of the outlet of the discharge piping, and 1.3 miles east of the proposed
pump station site. The Hayward fault is approximately 15 miles to the east of the City at the base of the East
Bay hills. Historically, this fault has produced the most moderate-sized earthquakes in the Bay Area. The
Serra fault intersects the discharge piping alignment between Hunt Drive and Sebastian Drive. ]t is considered
to have common roots with the San Andreas fault and is assumed to be potentially active, posing possible
future occurrences of surface rupture and damage to any structure built over its trace.16 Figure 10 shows the
locations of the San Andreas, Hayward, and Serra faults in relation to the project site.
'S San Francisco Public Utilities Commission, Land and Resources Management Section, Peninsula and Alameda �
Watershed Field Manual: Procedure for Protecting Watershed Lands, Version ], July 2001.
'� City of Burlingame, General Plan: Seisntic Safety Element. �
Trousda[e Pump Station and Transmission Main Project — Ini�ial Study Page 40
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`` Burlingune Proposed Project FIGURE 10
Projea Non6
777''''''��� �\ 0 750 1�500 Uninw�ponced Burliagame � Trousdale Pump Sntion FAULTS IN THE VICINITI'
�� � � I � I � We[land, pond, or bay � Dischuge Piping
Feet � n1��T� Suc[ionPiping OF THE PROJECT SITE
1 inch e uals 1,500 feet - Donnelly Twks & Pump Sta[ion
so��«�z: us c<�,,,��, ary i3o���d:�d,�. ���iy zonn; �r�;�� Trousdale Pump Station and
x r�.�,oR,��oo, z000: cscs i yd,��o���i�y �r.c. � I Iayward Fauli Transmission Main Project
i99n; eN ,u.od:�«. e�op��r �.o�moii.l����� zoos. ��lld � San Andrras Faidc
c;�s r�e���,. Jwr �no>; c:,i�ro�„�, c.bioe��.d s���,��y. BIIT'1111gSIIl2 Cl�
ea�d����:�k�� r.,��i� 7_o���,M:�p., p�g��.r �n. ���%; c��y oi Serra F:ud[ Nott: All locations are apprmcima[e. e
x�a����,���� c�,��.Qi vm„ s���»,;� s/ � e�,,,�„r.
Under seismic conditions, most Burlingame soils are reasonably stable. The suction piping alignment from
Magnolia Avenue to Marco Polo Way would be in the alluvial plain, which is predominantly sand. The pump
station site and segments of both the suction and discharge piping alignments that would be installed between
Marco Polo Way and Castenada Drive would be in the Merced formation, which is comprised of sandstone,
siltstone, and claystone. The remainder of the discharge piping alignment from Castenada Drive to Crystal
Springs Watershed lands would be in the western hills of the City, which are comprised of Franciscan
melange, or sheared rocks held in a matrix of clay materials."
2. Environmental Checklist and Discussion
Would the project:
1) Expose people or structures to potential substantial
adverse effects, including the risk of loss, injury, or
death involving:
a) Rupture of a known earthquake fault, as
described on the most recent Alquist-Priolo
Earthquake Fault Zoning Map issued by the
State Geologist for the area or based on other
substantial evidence of a known fault? (Refer to
Division of Mines and Geology Special
Publication 42.)
b) Strong seismic ground shaking?
c) Seismic-related ground failure, including
liquefaction?
d) Landslides?
2) Result in substantial soil erosion or the loss of
topsoi]?
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 Table
18-1-A of the California Building Code (2001),
creating substantial risks to life or property?
Significant Less Than Less-
or Potentially Significant Than-
Significant With Mitigation Significant
Impact Incorporated Impact No Impact
❑ ❑
❑ ❑
0 ❑
❑ ❑
❑ ❑
❑ ❑
❑ ❑
" City of Burlingame, General Plan: Seismic Safery Element.
■ ❑
■ 0
■ ❑
■ ❑
■ ❑
■ ❑
■ ❑
�
C�
�
�
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Would the project:
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?
Significant Less Than
or Potentially Signiticant
Signircant With Mitigation
Impact Incorporated
❑ ❑
Less-
Than-
Significant
Impact No lmpact
❑ ■
Discussion:
u
L_J
�
�
Analysis for F.1. The project site is not in a designated Alquist-Priolo Earthquake Fault Zone. However, the
potentially active Serra fault runs through the project site. The proposed project would not include structures
that house people or attract people to the project site. Because the discharge piping alignment crosses the Serra
fault, the segment of piping at this fault crossing could be subject to loss. The pipeline would be designed and
constructed to modern engineering standards for seismically active areas to ensure the risk of upset from
rupture caused by fault activity would be reduced as much as practicable. Design features would include
f7exible joints on either side of the fauh that would reduce potential for pipeline rupture.18 The pipeline would
include shut-off valves at regular distances so areas that may rupture could be isolated and any risk of upset
would be minimized. The design, evaluation, and inspection of the fault crossing by licensed engineers
through the design and construction phases would render the potential for impacts related to fault rupture less
than significant. Thus, the proposed project is not expected to expose people to potential substantial adverse
effec[s caused by the rupture of a known fault.
The City of Burlingame and the San Francisco Bay Area are in a seismically active region. Recent studies by
the United States Geological Survey (USGS) indicate that there is a 63-percent probability of a Moment
Magnitude (Mw) 6.7 or higher earthquake occurring in the Bay Area in the next 30 years. The project site
would experience a range of groundshaking effects during an earthquake on a Bay Area fault, particularly the
San Andreas fault. A characteristic earthquake on the San Andreas fault (Mw 7.2 on the Peninsula segment;
Mw 7.9 on the entire Bay Area trace) would cause very strong to violent groundshaking intensities (Modified
Mercalli In[ensity VIII to IX).'��`0 Groundshaking of this intensi[y could result in moderate damage to both the
pump station and transmission main. Seismic groundshaking could cause damage to operating systems and to
structural elements of the pump station. Minor structural damage may result, equipmen[ could topple, or
pumping systems may be distressed resulting in minor leakage. Although the potential for seismic ground
shaking to occur at the pumping station is unavoidable, the risk of excessive, permanent damage to the pump
station is anticipated to be relatively minor because the pump station would be designed and constructed to
modern engineering standards for seismically active areas to ensure the risk of damage caused by
18 Yeager, Tom, Project Engineer, Kennedy/Jenks Consultants, personal communication with EIP Associates, August 5,
2005 and December 5, 2005.
19 Shaking intensiry is a measure of groundshaking effects at a particular location, and can vary depending on ihe overall
magnitude of the earthquake, distance to the fault, focus of earthquake energy, and type of underlying geologic
material. The Modified Mercalli (MM) intensity scale is commonly used to measure earthquake effects caused by
groundshaking. The MM values for intensity range from I(earthquake not felt) to XII (damage nearly total).
'-0 ABAG, Shaking Intensity Map, www.abag.ca.gov/bayarea/eqmaps/gif99/bur1s06m.gif, accessed July ]9, 2005.
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groundshaking would be reduced as much as practicable. Because people are not expected to be present at the
pump station, injury to people is not anticipated. Therefore, ground shaking hazards are considered less than
significant.
Similar to the pump station, the transmission main could be subjected to damage occurring as a result of a
major seismic event. Significant damage resulting in pipeline rupture or long-term service in[erruptions would
occur if the seismic event generated ground motions exceeding what the pipeline and support structure could
tolerate. Although complete pipeline failure is not anticipated, seismic ground motion could cause damage
necessitating temporary service disruption and post-earthquake inspections. Damage could include broken
welds or minor linear distortion. Policy S8 of the Peninsula Watershed Management Plan21 states that utility
pipelines in the Watershed should meet current seismic standards. Seismic groundshaking at the project site is
unavoidable, but appropriate site evaluation, engineering analysis, structural design, and construction, as
dictated by modern engineering standards for seismically active areas would reduce the potential for damage
caused by earthquakes. Because the proposed project would not include structures that house people or attract
people to the project site, the proposed project would not alter substantially the current exposure of people to
potential hazards involving strong seismic groundshaking.
�
Because the project site is in a seismically active region, and because portions of the project site are on steep
slopes in the western hills of [he City, the potential for seismic-related ground failure at the project site exists.
The Association of Bay Area Governments' (ABAG) Earthquake Liquefaction Hazard Map22 shows that the
potential for liquefaction at most of the project site primarily is low. Some portions of the suction piping
alignment are in zones of high liquefaction potential. Because the proposed project would be designed and
constructed to modern engineering standards for seismically active areas, the impacts of ground failure and
liquefaction on the proposed project would be reduced as much as practicable. Because the proposed project
would not include structures that house people or attract people to the project site, the proposed project would
not alter substantially the current exposure of people or structures to potential hazards involving seismic-related
ground failure, including liquefaction. �
Landsliding is a known hazard in the City's western hills, in which the majority of the discharge piping would
be constructed. Many of the natural factors that promote landsliding, such as steep slopes, poorly consolidated �
bedrock, heavy rainfall, and seismic groundshaking are known to affect certain areas of the western hills.
According the City's General Plan23 and the USGS,24 the majority of the discharge piping alignment is in an
area of moderate landslide risk. The proposed project is not expected to alter substantially the current exposure �
of people to landslide hazards because it would not include structures that house or attract people. Because the
project would be designed and constructed to modern engineering standards for seismically active areas,
including the stability of slopes subject to landsliding from static or dynamic sources, impacts associated with
landslides would be reduced to less than significant.
�
21 EDAW for San Francisco Public Utilities Commission, Peninsula Watershed Management Plan, Spring 2002.
z2 ABAG, Liquefaction Hazard Map, www.abag.ca.gov/bayarea/eqmaps/liquefac/liquefac.html, accessed July 19, 2005.
Z3 City of Burlingame, General Plan: Seismic Snfery Element. .
'-4 USGS, Summary Distribution of Slides and Earthflows, www.abag.ca.gov/bayarea/eqmaps/landslide/index.html,
February 1998, accessed July 26, 2005.
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A concrete masonry structure and underground vault would be built as part of the proposed pump station. An
extension to the existing retaining wall along the southwestern boundary of the project side would be
constructed. Although these structures would not expose people to geologic and seismic hazards, the masonry
structure and underground vault would conform to the California Building Code. The City will retain a
licensed engineer to oversee the project and assure compliance with the California Building Code. This
supervision would ensure potential impacts associated with seismic activity would be reduced to a less-than-
significant level as part of the design and construction of the proposed project.
Analysis for F.2. The proposed project is not expected to create substantial erosion or loss of topsoil because
most of the project site would be paved or landscaped, and the partion of the discharge piping alignment in the
Crystal Springs Watershed would be vegetated. In addition to obtaining a grading permit from the City, the
contractor would be required to comply with the grading standards contained in Section 18.20.070 of the City
Code. Furthermore, the City's Special Provisions (Section 13) on storm water pollution prevention, listed
below, targets earthwork activities as a source of erosion during construction. Section 13 recommends
practices that would reduce erosion. Specifically, the following provisions would apply to the proposed
project:
(b) Activity-Specific Requirements
(7) Earthwork
The Contractor shall maximize the control of erosion and sediment by using the BMPs
for erosion and sedimentation in the California Storm Water Best Management Practice
Handbook-Construction-Activiry (published by the Storm Water Quality Task Force) or
Manual of Standards for Erosion & Sediment Contro[ Measures (published by ABAG).
Conformance with City grading standards and the National Pollutant Discharge Elimination System (NPDES)
� permit (described under Checklist Item H, Hydrology and Water Quality), would ensure erosion that could
occur as a result of construction and implementation of the proposed project would be controlled, thereby
reducing the impact to a less-than-signi�cant level.
Analysis for F.3 and F.4. As described above in the Setting, [he City's soils are reasonably stable. The soils
of the City's foothills and western hills are mostly clays, some of which are expansive in nature. During
construction and installment of the proposed project, soil would be excavated and replaced with engineered fill.
The fill material would be non-expansive, as required by the Municipal Code, and more stable than existing
soil conditions at the project site. The proposed extension of the retaining wall along the southwestern
boundary of the pump station site would be constructed against an approximately 2:1 natural slope ascending to
[he southeast, and would be built to standards that would protect against slope failure. Because the proposed
projec[ would not involve groundwater withdrawal, land subsidence is not expected to occur as a result of the
proposed project. The proposed project is not expected to result in any significant impacts or risk to life and
property associated with soil instability.
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Analysis for F.S. The proposed project would not generate wastewater, would not need a wastewater disposal
system, and would not include the installation of septic tanks or leach fields. Therefore, there is no potential
impact related to the capability of the soil to support septic tanks or alternative disposal systems. Soil support
for the use of septic tanks or alternative wastewater disposal systems is not applicable to the proposed project.
3. Conclusion
The proposed project would not result in significant impacts related to fault rupture or seismically-related
ground failure. Incorporation of modern engineering standards for seismically active areas would reduce
impacts associated with seismic activity, landslides, and soil instability to a less-than-significant level. Visitors
and inhabitants would not be present at the project site under the proposed project. Therefore, the proposed
project would not expose people to geologic or seismic hazards that may occur at the project site. In addition,
the proposed project would not increase unstable and seismic conditions on- and off-site. Conformance with
City grading standards and the required NPDES permit would ensure that erosion would not occur from the
proposed project. There would not be any impacts related to wastewater disposal through the soil, because no
wastewater would be generated by the proposed project. Thus, geologic impacts would be less than
significant.
G. HAZARDS AND HAZARDOUS MATERIALS
1. Setting
The proposed project would transport SFPUC water through the City's western hills. Mills High School is less �
than '/z mile north of the proposed suction piping alignment, and Franklin Elementary School is adjacent to the
proposed pump station site. The San Francisco International Airport is approximately 4,200 feet (0.8 miles)
from the eastern end of the suction piping alignment, and the site is adjacent to the Peninsula Medical Center.
No known hazardous materials sites are on or near the project site.ZS
While operation of the proposed project would primarily involve the transportation of potable water,
construction and operation of the proposed project would also involve the use of small quantities of hazardous
materials, which could expose people or the environment to associated risks during their transport, use,
storage, or disposal. In addition, the use of lubricating fluids for the pump and fuel for the generator would be
used during operation of the proposed project. Operation of the transmission main would not involve the use
of hazardous materials.
Hazardous materials associated with the operation of the existing pump station and Donnelly and Alcazar
facilities are similar to those specified for operation of the proposed project.
'-5 Department of Toxic Substances Control, Hazardous Waste and Substances Site List (Cortese List),
www.dtsc.ca.gov/database/Calsites/Cortese List.cfm, accessed July 22, 2005.
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2. Environmental Checklist and Discussion
Significant or Less Than Less-
Potentially Signiticant Than-
Signi6cant With Mitigation Significant
Would the project: Impact lncorporated Impact No Impact
1) Create a significant hazard to the pablic 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 envirorunent?
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, would the project result in a safety
hazard for people residing or working in the
project area?
6) For a project within the vicinity of a private
airstrip, would the project result in a safety
hazard for people residing or working i� the
project area?
7) Impair implementation of, or physically interfere
with, an adopted emergency response plan or
emergency evacuation plan?
8) Expose people or structures to a significant risk
of loss, injury or death involving wildland fires,
including where wildlands are adjacent to
urbanized areas or where residences are
intermixed with wildlands?
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Discussion:
Analysis for G.1 and G.2. The proposed pump station and transmission main would transport SFPUC water,
which is not considered a hazardous material. Pump and generator machinery would use small amounts of fuel
and lubricants, which would be internal to the machinery. Though small in quantity, use of these materials
would be subject to regulations (Titles 22 and 26 in the California Code of Regulations), where adopted by the
State to reduce the potential risk to human health and the environment related to the use of hazardous materials.
Therefore, if upset or accident conditions were to occur at the project site during operation, the impact of the
release of hazardous materials would be less than significant.
Construction of the project would involve the use, transport, and/or disposal of products containing hazardous
materials. Typical products include vehicle fuels and lubricants, welding compounds, and various items such
as solvents, cements, and paint. Any spilled products would be properly characterized, removed, and
transported to an approved disposal site according to State and San Mateo County Environmental Health
Division regulations.
In addition, the City's Special Provisions (Section 13) on storm water pollution prevention recommends
practices that would reduce the risk of releasing hazardous materials to storm water. Specifically, the
following provisions would apply to the proposed project:
(a) General Requirements
(2) HaZardous Material/Waste Management
(A) Storage
(i) The Contractor shall label and store all hazardous materials such as pesticides,
paints, thinners, solvents, and fuels; and all hazardous wastes, such as waste oil and
antifreeze; in accordance with all applicable Counry, State, and Federal regulations.
(ii) The Contractor shall store all hazardous materials and all hazardous wastes in
accordance with secondary containment regulations, and these materials and wastes
shall be covered to avoid having to handle collected rain water.
(iii) The Contractor shall keep an accurate, up-to-date inventory, including Material
Safety Data Sheets (MSDSs), of hazardous wastes stored on-site, to assist emergency
response personnel in the event of a hazardous materials incident. The inventory shall
include a site map showing the location of these materials.
(B) Usage
(i) When rain is forecast within twenty four (24) hours or during wet weather, the
Engineer may reguire the Contractor to avoid applying chemicals in outside areas.
�
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(ii) The Contractor shall not over-apply pesticides, herbicides, or fertilizers and shall
follow material manufacturer's instructions regarding uses, protective eguipment,
ventilation, flammability, and mixing of chemicals.
(C) Disposal
(i) The Contractor shall arrange for regular hazardous waste collection to comply with
time limits on storage of hazardous wastes.
(ii) The Contractor shall dispose of hazardous waste only at authorized and permitted
Treatment, Storage, and Disposal Facilities, and use only licensed hazardous waste
haulers to remove the waste off-site, unless quantities to be transported are below
applicable threshold limits for transportation specified in State and Federal regulations.
(3) Spill Prevention and Control
(F) The Contractor shall not bury spi[led hazardous materials and shall report any hazardous
materials spill to City of Burlinga�me Fire Department i�nmediately.
(G) Drain pans shall be used to catch leaks or leaks are c[eaned up immediately, and the waste
and cleanup and the waste and cleanup materials shall be disposed of as hazardous waste.
(H) The Contractor shall recycle waste oil and antifreeze to the maximum extent practicable.
(I) The Contractor sha11 comply with Federal, State, Counry and Ciry reguirements for
aboveground storage tanks_
IMPROVEMENT MEASURE. While the project's impact of hazardous materials use would not be a
significant effect under CEQA, there are measures that the City could implement to further reduce the
less-than-significant impacts in Crystal Springs Watershed lands during construction. Implementation
of the following Improvement Measure would improve safety related to ihe handling of hazardous
materials and accidents in the Watershed lands.
HAZ-l. Comply with SFPUC procedures in Crystal Spring Watershed lands. All work in the
Watershed lands shall comply with procedures set forth in the SFPUC's Peninsula and
Alameda Watershed Field Manual.Zb The manual shall be distributed to all employees
working in Watershed lands. All work involving the use of hazardous materials shall be
reviewed and approved by SFPUC's Land and Resources Management Section (LRMS)
prior to commencing work. Persons handling hazardous materials shall demonstrate
hazardous materials training and experience and possess the appropriate permits and
licenses where applicable. In the event of a spill in the Watershed lands, spill areas shall
be cleaned up completely using authorized and trained personnel following all applicable
regulations. Clean-up shall be overseen by LRMS.
'6 San Francisco Public Utilities Commission, Land and Resources Management Section, Peninsula and Alameda
Watershed Field Manual: Procedure for Protecting Watershed Lands, Version 1, July 2001.
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Analysis for G.3. Although the project would be in the vicinity of two schools, operation of the pump station
and transmission main would not involve the use of hazardous materials. However, construction activities
would involve the use of the several hazardous materials that could accidentally be released. The types of
materials that could be released include diesel, gasoline, lubrication oil, hydraulic fluid, antifreeze,
transmission fluid, and lubricating grease from a vehicle or other motorized equipment. As described above in
Analysis for G.1 and G.2, compliance with State and San Mateo County Environmental Health Division
regulations, as well as the mitigation measures identified below, would reduce the impact of accidents
associated with hazardous materials. Thus, there would be a less-than-significant impact related to the
emission or handling of hazardous materials, substances, or wastes within �/ mile of an existing or proposed
school.
Analysis for G.4. The project site is not listed in the State of California Hazardous Waste and Substances
Sites List,27 which is compiled by the Department of Toxic Substances Control pursuant to Government Code
Section 65962.5, nor is it located on any known hazardous material sites. Thus, the proposed project would
not result in safety hazards as a result of being on a known hazardous materials site.
Analysis for G.S. The project site is in an airport land use plan because of the site's proximity to San
Francisco International Airport. Under certain atmospheric conditions, [he air space above Trousdale Drive is
used as a flight corridor for planes landing at or taking off from San Francisco International Airpart.
However, because the proposed transmission main would be installed underground, and because the height of
the proposed pump station would be approximately 10 feet, the proposed project would not interfere with air
traffic. The proposed pump station is not anticipated to create a significant amount of glare because the
masonry structure it is housed in would be constructed of unpainted concrete. The roof of the masonry
structure would be constructed of standing steam metal and contain removable skylights, and would be
reflective. However, because the structure is small, the roof is not anticipated to emit substantial glare. The
proposed project would not result in any significant safety hazards for people residing or working in the project
area.
Analysis for G.6. The project site is not in the vicinity of a private airstrip and therefore would have no
impact on safety because of such a location.
Analysis for G.7. The City does not have a formal emergency response plan or emergency evacuation plan.
While the Safery Element of the City's General Plan does not designate emergency evacuation vehicle routes,
Trousdale Drive is considered a major arterial,2� and would likely be used as an evacuation route in case of
emergency. The proposed project would not create any long-term impacts to emergency access in the vicinity
of the project site. However, it is anticipated that construction of the proposed project would obstruct
Trousdale Drive, resulting in short-term impacts. Checklist Item O, Transportation, of this document
addresses this impact, and Mitigation Measure TR-2 would reduce [he impact of project construction on
emergency access to less than significant.
'-' Department of Toxic Substances Control, Hazardous Waste and Substances Site List (Cortese List),
www.dtsc.ca.gov/database/Calsites/Cortese List.cfm, accessed July 22, 2005.
'R City of Burlingame, General Plan: Safety Element.
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The existing pump station and the Donnelly and Alcazar facilities would remain in operation throughout the
construction period and until the proposed project is implemented. The proposed project would replace older
infrastructure and improve the distribution of water supplies, thereby improving the community's ability to
respond to an emergency in terms of fire water supply. The proposed pump station would also have redundant
power and hydraulic capacity and be served by a diesel fuel-powered emergency generator.
Analysis for G.8. Fire hazards in the City are considered moderate to slight.29 The majority of the project
site is in a developed urban and residential area and is not adjacent to, or intermixed with, wildlands.
However, approximately 1,200 feet of the discharge piping alignment would be in Crystal Springs Watershed
lands, west of I-280. Crystal Springs Watershed lands are considered a game refuge by the CDFG. The dense
vegetation in these lands could provide fuel for fire and put neighboring residences at risk. However, the
proposed project would not substantially alter the current exposure of people or structures to potential hazards
involving fires. People would not be present at the project site as a result of the proposed project, nor would
structures be constructed above ground near Crystal Springs Watershed lands. Compliance with existing State
and local fire safety regulations and standards during construction and operation of the proposed project would
reduce the risk of fire hazard due to inadvertent releases of flammable or explosive materials. Therefore, the
proposed project would not expose people or structures to a significant risk of loss, injury or death involving
fires.
3. Conclusion
Under the proposed project, hazardous materials would not be present at the project site in substantial
quantities. The proposed project would not result in the significant release of hazardous materials or exposure
of people and the environment to hazardous materials. The project site is not identified as a hazardous
materials site. The proposed project would not pose as a significant safety hazard to nearby air traffic.
Construction would pose a short-term less-than-significant impact on emergency access along Trousdale Drive.
The community would benefit from the improvements made to the existing water supply infrastructure,
including in the case of an emergency. The proposed project would not result in any significant safety or
health hazards.
H. HYDROLOGY AND WATER QUALITY
1. Setting
The project site is located in a developed area and is surrounded primarily by residences and vegetation. The
site is sloped at roughly 5 percent along the suction piping alignment and 9 percent along the discharge piping
alignment, with the suction piping alignment at the lowest portion of the site to the east, and the discharge
piping alignment at the highest portion of the site to the west, closest to the Crystal Springs Watershed area.
The nearest stream to the pipeline is Mills Creek, which is located approximately 1,500 feet south of Trousdale
Drive and runs generally parallel to the project site. According to the FEMA Flood Insurance Rate Map, none
of the project site is located within the 100-year or 500-year flood plains.
'-y City of Burlingame, Genera[ Plan: Safery Element.
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2. Environmental Checklist and Discussion
Would the project:
1) Violate any water quality standards or waste
discharge requirements?
2) Substantially deplete groundwater supplies or
interfere substantially with groundwater recharge
such that there would be a net deficit in aquifer
volume or a lowering of the local groundwater table
level (e.g., the production rate of pre-existing
nearby wells would drop to a]evel which would not
support existing land uses or planned uses for which
permits have been granted)?
3) Substantially alter the existing drainage pattern of
the site or area, including through the alteration
of the course of a stream or river, in a manner
which would result in substantial erosion or
siltation on-or off-site?
4) Substantially alter the existing drainage pattern of
the site or area, including through the alteration
of the course of a stream or river, or substantially
increase the rate or amount of surface runoff in a
manner which would result in flooding on-or off-
site?
5) Create or contribute runoff water which would
exceed the capacity of existing or planned storm
water drainage systems or provide substantial
additional sources of polluted runoff?
6) Otherwise substantially degrade water quality?
7) Place housing within a 100-year flood hazard area
as mapped on a Federal Flood Hazard Boundary
or Flood Insurance Rate Map or other flood
hazard delineation map?
8) Place within a]00-year flood hazard area
structures which would impede or redirect flood
flows?
9) Expose people or structures to a significant risk of
loss, injury, or death involving flooding,
including flooding as a result of the failure of a
levee or dam?
Significant Less Than Less-
or Potentially SigniCcant Than-
Significant With Mitigation Significant
Impact Incorporated Impact
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Would the project:
]0) Be subject to inundation by seiche, tsunami, or
mudflow?
Discussion:
Significant Less Than
or Potentially Significant
Significant With Mitigation
Impact Incorporated
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Than-
SigniCcant
Impact No Impact
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Analysis for H.1. The area to be disturbed by construction of the proposed project would be approximately
97,000 square feet, or 2.2 acres.30 As described in Section III, Project Description, of this document, the
construction of the project would occur in four phases along different segments of the proposed alignment.
Each of the four project phases would be conducted by individual contractors hired by the City, and each phase
would disturb less than one acre of land. Regarding the piping alignment within Crystal Springs Watershed
lands in particular, conservative estimates by project engineers indicate that the 1,200-foot-long portion of the
piping alignment within Crystal Springs Watershed lands would include a 50-foot-wide swath along the length
of the pipeline." Construction activities, because of the related erosion and sedimentation impacts, pose
significant concerns to water quality protection. The City must obtain a NPDES General Permit for storm
water discharges associated with construction activity, as required by the Clean Water Act. The permit is
intended to ensure that discharges to surface waters do not result in water quality degradation.
]t was agreed between the City and the San Francisco Bay Regional Water Quality Con[rol Board (RWQCB)
that each contractor, on behalf of the City, would be required obtain an individual NPDES permit from the
RWQCB for the contractor's corresponding project phase.;2 Consequently, each contractor would be required
under its NPDES permit to file a Notice of Intent (NOI) and to prepare and implement a Storm Water Pollution
Prevention Plan (SWPPP) to prevent polluted runoff from flowing into public drainage facilities during
construction of the proposed facilities. The SWPPP would contain Best Management Practices (BMPs) that
include schedules of activities, prohibitions of practices, maintenance procedures, and other management
practices to prevent or reduce the pollution in storm water runoff during construction. The SWPPP would be
reviewed and approved by the Ciry and other appropriate agencies, such as the RWQCB, prior to issuance of a
grading or building permit. In addition, each phase would comply with the San Mateo County Stormwater
Pollution Prevention Program and be subject to review by San Mateo County. A total of four NOIs and four
SWPPPs would be required for the issuance of four NPDES permits to the City by the RWQCB. Because the
project would be subject ro compliance with the permit conditions set forth by the NPDES permit and the
County, it would thus not be expected to violate water quality standards or discharge requirements.
Compliance with NPDES and STOPPP requirements would ensure impacts would be less than significant.
;" The area to be disturbed by construction of the proposed project is estimated as the sum of the area that would be
occupied by the suction piping alignment (including buffer width), the area that would be occupied by the proposed
pump station, the area occupied by the portion of discharge piping alignment that is not located within Crystal Springs
Watershed lands (including buffer width), and a 50-foot swath resulting from installment of the approximately 1,200-
foot portion of discharge piping alignment that is located within Crystal Springs Watershed lands.
3' Erler & Kalinowski, Inc., personal communication with EIP Associates, July 25, 2005.
3' Lichten, Keith, San Francisco Bay Regiona] Water Quality Control Board, personal comm�nication with Erler &
Kalinowski, Inc., November 3, 2005.
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Additionally, the City engineers have stated that measures adapted from the City's Special Provisions would be
imposed during construction. The measures listed below are adapted from the City's Special Provisions
(Section 13) on storm water pollution prevention, a standard template with which projects within the City can
modify as appropriate to the project in question. The goal of these provisions is to prevent the pollution of
storm water runoff on construction projects by reducing the exposure and discharge of materials and wastes to
storm water, and by reducing erosion and sedimen[ation. Specifically, the following provisions would apply to
the proposed project:
(a) General Requirements
(1) Non hazardous Material/Waste Management
(A) Designated Area
The Contractor shall propose designated areas of the project site, for approval by the
Engineer, suitable for material delivery, storage, and waste collection that are near
construction entrances and away from storm drain inlets, gutters, drainage courses, and
creeks.
(b) Activiry-Specific Requirements
(2) Paving Operations
(A) Project Site Management
(i) When rain is forecast within twenry four (24) hours or during wet wenther, the
Engineer may require the Contractor to avoid paving.
(ii) The Engineer may direct the Contractor to protect drainnge courses by using
control measures, such as earth dike, straw bale, storm drain frlter cloth, and sand
bag, to divert runoff or trap and filter sediment.
(iii) The Contractor shall place drip pans or absorbent material under paving
equipment when not in use.
(iv) The Contractor shall cover catch basins, drop inlets, and manholes when paving or
applying seal coat, tack coat, slurry seal; or fog seal.
Checklist Item F, Soils and Geology, and Checklist Item G, Hazards and Hazardous Materials, contain
additional provisions from Section 13 that would mitigate hazardous emissions and releases to storm water as
well as storm water pollution due to erosion.
Analysis for H.2. The project does not include any wells or other facilities that could affect groundwater.
The proposed project would connec[ to the existing SFPUC Hetch Hetchy water distribution system. Thus, no
impact on groundwater supplies or recharge is anticipated from this project.
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Analysis for H.3. The NPDES permit discussed above requires the preparation of a Tier II SWPPP and the
implementation of BMPs to reduce construction-period erosion. The implementation of BMPs accounts for
potential construction activities in wet weather conditions, and seeks to minimize potential erosion and enhance
sediment control. Thus, conformance with the NPDES permit would ensure that substantial erosion would not
result from the proposed project, and erosion-related impacts would be less than significant.
IMPROVEMENT MEASURE. While the project's impac[ on erosion would not be a significant effec[
under CEQA, there are measures that the Ciry could implement to further reduce the less-[han-
significant impacts in Crystal Springs Watershed lands during construction. Implementation of the
following Improvement Measure would improve the prevention of erosion by restricting construction
activities during we[ weather.
HWQ-1. Comply with SFPUC procedures in Crystal Spring Watershed lands. All work in the
Watershed lands shall follow the erosion control and waterbody protection procedures set
forth in the SFPUC's Peninsula and Alameda Watershed Field Manua1.33 The manual shall
be distributed to all employees working in Watershed lands. Timing of construction in the
Watershed lands shall be between April 15 and October 15, so as to avoid heavy rains.
The SFPUC may restrict access to Watershed lands during major storm events.
Analysis for H.4. The proposed project includes substantial grading and redesign of the site that would alter
the existing drainage at the site. No streams or rivers would be altered by the proposed project, since none are
located on or near the site. As described in Section III, Project Description, the elevation of the pump station
site would be lowered. Site drainage would be in the same direction as existing drainage towards Trousdale
Drive. Therefore, flooding impacts associated with altered drainage patterns on the project site would be less
than significant.
Analysis for H.S. The 1,500-square-foot portion of Burlingame School District property that the Public
Works Department would acquire for the project is currently permeable, vegetated land. This area of land
would be developed and paved to accommodate the new pump station. Thus, impervious area at the pump
station site would increase from approximately zero square feet to 1,500 square feet. As a result of the
increase in impervious surface area at the project site, storm water flows are expected to increase from
approximately 0.0014 cubic feet per second (cfs) to 0.0062 cfs, an increase of 0.0048 cfs.34 The City's Public
Works Department has determined that the storm water system serving the site would have sufficient capacity
to serve inflow increase.35 Additionally, an on-site catch basin would be constructed to discharge storm water
and runoff into the City storm drain system, thus minimizing runoff and flooding impacts off-site. Flooding
impacts associated with runoff generated at the project site would be less than significant.
33 San Francisco Public Utilities Commission, Land and Resources Management Section, Peninsula and Alameda
Watershed Field Manual: Procedure for Protecting Watershed Lands, Version 1, July 2001.
'� Runoff rates generated by pre- and post-construction project site conditions were estimated using ihe Rational
Method. Runoff coefficients were estimated using Caltrans Storm Water Quality Handbook,
35 Monaghan, Phil, City of Burlingame, personal communication with EIP Associates, August l l, 2005.
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Analysis for H.6. It is possible that, during the construction phase of the project, polluted runoff would t7ow
into City drainage facilities and eventually reach San Francisco Bay. As mentioned above in Analysis to H.S,
an on-site catch basin would be present on the project site. Not only would the basin hold excess runoff, it
would also help remediate contaminants in runoff before it is discharged to the storm drain system. Also,
Policy WQ1.1 of the Peninsula Watershed Management Plan36 specifies that a 300-foot minimum buffer should
be established around all water bodies and streams in the Watershed lands where the land is not disturbed, in
order to prevent negative water quality impacts. In addition, the mitigation measures described below would
ensure that the proposed project would not result in substantial polluted runoff. With construction of an on-site
catch basin, compliance with local watershed policies, and incorporation of the mitigation measures below and
the implementation of the measure below, project impacts related to polluted runoff would be less than
significant.
Analysis for H.7 and H.8. The proposed project does not include any housing, nor is it located in a 100-year
flood zone. Therefore, the proposed project would not place housing or structures within a 100-year flood
hazard area and would have no impact.
Analysis for H.9. The proposed project would not directly expose people or structures to a significant risk of
loss, injury or death involving flooding, including flooding as a result of the failure of a levee or dam. The
dam failure inundation map for the area created by the Association of Bay Area Governments (ABAG) shows
that the project site is not in a dam failure inundation zone.37 The project would have no impact.
Analysis for H.10. The project site elevation ranges from approximately 29 feet (a[ the inlet of the suction
piping) [0 650 feet (at the outlet of the discharge piping) above mean sea level. The distance between the
project site and the San Francisco Bay ranges from approximately 1.0 mile (at the inlet of the suction piping) to
2.8 miles (at the outlet of the discharge piping). The pump station site itself is 124 feet above sea level and 1.4
miles from San Francisco Bay.'$ Because of the distance of the project site from the San Francisco Bay's shore
and the elevation of the project site, the potential for the proposed project to result in impacts associated with
tsunamis is considered less than significant. The potential for impacts associated with seiches is considered low
in the vicinity of the project site.3v
The majority of the project site is situated in a developed area with commercial and residential uses. The
surrounding area has been paved or landscaped. The 1,200-foot portion of discharging piping alignment is
located in the undeveloped and densely vegetated land within the Crystal Spring Watershed. Because the
project site is either paved or vegetated, the potential for rain to encounter and saturate exposed soil and other
loose material is low. Thus, the proposed project is not expected to result in or be exposed to significant
impacts from mudflow.
'� EDAW for San Francisco Public Utilities Commission, Peninsu[a Watershed Management Plan, Spring 2002.
" ABAG, Dam Failure Inundation Hazard Map, www.abag.ca.gov/bayarea/eqmaps/damfailure/damfail.html, accessed
July 19, 2005.
3S Olivia Chen Consultants, New Trousdale Pump Station and Pipeline Conceptual Engineering Report, December
2004.
39 City of Burlingame, General Plan: Seismic Safety Element.
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3. Conclusion
The proposed project would be subject to NPDES permit review by the RWQCB and County and would be
expected to comply with permit conditions regarding surface water pollution prevention. The proposed project
would thus have less than significant impacts on all hydrology and water quality issues.
I. LAND USE
1. Setting
Trousdale Pump Station. The existing pump station is located on Trousdale Drive, a major arterial road,
near the intersection of Martinez Drive, a secondary road. The site is approximately 280 feet south of the City
boundary with Millbrae. Surrounding land uses include:
• Franklin Elementary School and grounds immediately to the east and south of the site; and
• single family residential neighborhoods immediately to the north and to the west.
Suction Piping. The suction piping portion of the transmission main runs underneath the southern side of
Trousdale Drive, eastward from the Trousdale Pump Station to Marco Polo Way and the Trousdale
Drive/Magnolia Avenue intersection. Surrounding land uses include:
• Franklin Elementary School and grounds to the south of the pipeline;
• single and multiple family residential neighborhoods to the north and south;
• retail uses (within Burlingame Plaza) and offices to the north and south; and
• Peninsula Medical Center to the south.
Discharge Piping. The discharge piping portion of the transmission main runs westward from the pump
station to the Mills Tank, which is located just west of I-280, within Crystal Springs Watershed lands.
Surrounding land uses include:
• single family and multiple family residential neighborhoods;
• Interstate I-280; and
• Crystal Springs Watershed lands, a biosphere reserve and CDFG game refuge.
2. Environmental Checklist and Discussion
Would the project:
1) Physically divide an established community?
Significant Less Than Less-
or Potentially Significant Than-
Significant With Mitigation Significant
Impact Incorporated Impact No Impact
❑ ❑ ■ 0
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Would the project:
2) Conflict with any applicable land use plan, policy,
or regulation of an agency with jurisdiction over the
project (including, but not limited to the general
plan, specific plan, local coastal program, or zoning
ordinance) adopted for the purpose of avoiding or
mitigating an environmental effect?
3) Conflict with any applicable habitat conservation
plan or natural community conservation plan?
Discussion:
Significant Less Than
or Potentially Significant
Significant With Mitigation
Impact Incorporated
❑ ❑
❑ ❑
Less-
Than-
Signi�cant
Impact No Impact
■ ❑
❑ ■
Analysis for 1.1. The new pump station would replace the existing Trousdale Pump Station at 2501 Trousdale
Drive, a 2,600-square-foot property. A 1,500-square-foot portion of the adjacent 2385 Trousdale Drive
property, occupied by landscaped Franklin Elementary School grounds, would be purchased from the
Burlingame School District as part of the project for the construction of the pump station. The proposed
4,100-square-foot si[e is bounded by Trousdale Drive, the Franklin Elementary School grounds, and a single-
family residence. Surrounding uses would continue as they are with the implementation of the proposed
project. The enlargement of the pump station grounds and the construction of the new facilities would not,
therefore, physically divide an established community and no such impacts would occur.
The transmission main would be buried under Trousdale Drive connecting with the underground SFPUC
turnouts and the Trousdale Pump Station, bored through I-280, and buried again under Crystal Springs
Watershed lands, where the transmission main would connect with the Mills Tank (see Figure 2). As the
transmission main would be underground, it would not physically divide an established community, and there
would be no impact. However, construction of the transmission main would require temporary linear
obstructions along Trousdale Drive, causing potential temporary physical division of the community
surrounding Trousdale Drive. This temporary division would have a less-than-significant impact as the
construction would occur in phases, and both vehicle and pedestrian passage would be maintained during the
construction of the transmission main, thereby preventing any substantial physical division of the community.
Analysis for I.2. The applicable land use plans for the proposed project include the Burlingame General Plan,
the Burlingame Municipal Code Title 25 Zoning Ordinance, the San Mateo County Comprehensive Airport
Land Use Plan (ALUP; adopted in 1996), and the North Burlingame/Rollins Road Specific Plan.
General Plan Consistency. In general, the proposed project would have a less-than-significant impact
regarding consistency with applicable policies and actions of the City of Burlingame General Plan, and
specifically the Land Use, Open Space, Housing, and Safety Elements. The General Plan Land Use Map
designates the Trousdale Pump Station as an Institutions-Elementary School use, because the site is directly
adjacent to school facilities and partially occupied by school grounds. In the vicinity of the project site,
designations include Residential-Low Density, Residential-Medium Density, Residential-Medium High
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Density, Commercial Uses-Office Use, and Institutions-Other. The suction piping would run under Trousdale
Drive, a four-lane major arterial, through a land use district designated by the General Plan Land Use Map as a
Commercial Uses-Offce Use district. The suction piping would then continue under Trousdale Drive and
' would run through a Residential Uses-Medium High Density district, and would terminate at the Trousdale
Pump Station in a Residential Uses-Low Density district. The discharge piping would originate at the
Trousdale Pump Station and would be installed under Trousdale Drive, which passes through a Residential
Uses-Low Density land use district. Upon crossing Skyline Boulevard, the discharge pipe would exit the city
limits of Burlingame, cross I-280 (under Caltrans' jurisdiction), and terminate in Crystal Springs Watershed
lands, within lands owned by the SFPUC. The sites of the Donnelly and Alcazar facilities, which would be
taken out of service with the implementation of the proposed project, are designated as Residential Uses-Low
Density under the General Plan.
The consistency of the proposed project with applicable General Plan policies, principles, and actions is
discussed in several sections of this document. Conformity with the scenic roads and highways elements is
discussed in Checklist Item A, Aesthetics. Conformity with the noise element is discussed in Checklist Item K,
Noise. The proposed project's compliance with the Land Use, Open Space, Housing, and Safety Elements is
discussed below.
The City of Burlingame General Plan's Land Use Element Action L(8) specifies that the regulations for
institutional uses should permit the continuance of existing uses and prohibit changes in use without City
authorization, permitting the City to take appropriate action to ensure that potential sites for parks and
buildings suitable for public assembly are not lost to public use. The proposed project would convert 1,500
square feet of school grounds (an institutional use) into pump station use. The portion to be converted is a
]andscaped area that serves no specific or active school function, and would not restrict the continuance of the
existing use of the school facilities. Also, while the proposed project would annex a small amount of land that
currendy belongs to an institutional use, it is a City-initiated and, therefore, City-authorized project for public
facility use. Additionally, 1,500 square feet is not a substantial amount of land. No potentia] site for parks or
buildings would be lost to potential public use, as the City would own and control the use of the site after
purchasing the land from the Burlingame School District. Therefore, there would be a less-than-significant
impact on this General Plan Action.
The Housing Element's Action H(A-1) seeks to, in residential neighborhoods, con[inue the main[enance and
enhancement of public facilities such as streets, water supply, and drainage by allocations from the general
fund, gas tax revenue, and, where appropriate, conditions of development. The proposed project is in direct
compliance with this Action, as it would provide enhancement and maintained water supply to residential
neighborhoods through the general fund.
The Open Space Element's Policy OS(A) seeks to preserve existing open space and open space lands to the
fullest extent practicable, with spaces ranging in size from regional scale to small open spaces on individual
lots. While the proposed project requires acquisition of a portion of the Franklin Elementary School grounds,
which are currently open space, the smallest amount of additional land practicable has been proposed for the
new Trousdale Pump Station. An additional 1,500 square feet would be needed for the construction of the
proposed pump station. Within the new, larger parcel, the lot coverage would be approximately 26 percent,
while the zoning would permit up to 40 percent lot coverage. While the use of some open space would be
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required for the project, open space on the lot would be preserved to the fullest extent practicable, and project
inconsistency with Policy OS(A) would be less than significant.
The Safety Element's Action S(17) seeks to prepare a detailed study of City's existing water circulation system
to establish trouble points and recommend priorities for any immediate work required. This proposed project
is a direct response to this Action item as it would correct several trouble points within the existing water
circulation system. Therefore, the proposed project would be consistent with Action S(17) in the General Plan.
Action S(19) seeks to evaluate hazards from failure of the City's two water reservoirs, evaluate the need for
emergency power supply for the water system's two water pumping stations, and to review the need for
additional pumping capacity. The proposed project would provide an emergency generator for emergency
power supply to the Trousdale Pump Station and would provide additional pumping capacity. Therefore, the
proposed project would be consistent with Action S(19) in the General Plan.
Municipal Code Title 25 Zoning Ordinance Consistency. The zoning designation in the Burlingame Municipal
Code Title 25 Zoning Ordinance for the Trousdale Pump Station site and surrounding areas is R-1, which
designates a single family dwelling district in which public utiliry and public service structures or installations
are a conditional use. In the zoning ordinance, public utility is defined as any company, or municipal
department, duly authorized to furnish electricity, gas, steam, telephone, transportation, or water to the public
under public regulation. The transmission main would run underneath Trousdale Drive, which is a major City
arterial and is not within a designated zoning district. The suction piping would pass adjacent to C1, C3, R1,
R2, and R3 zoning districts. The discharge piping would pass adjacent to an R1 zoning district. However, in
accordance with California Government Code Section 53091, zoning and building ordinances of the City of
Burlingame do not apply to the location or construction of facilities for the production, generation, storage,
treatment, or transmission of water. Because the project is a water storage and transmission facility proposed
by the City, the project is exempt from zoning and building ordinances. While a conditional use permit is not
necessary due to the California Government Code exemption from the zoning ordinance, construction of the
Trousdale Pump Sta[ion in an R-1 district and the transmission main underneath Trousdale Drive would not
conflict with the Burlingame Municipal Code Title 25 Zoning Ordinance, and therefore would have no impact.
San Francisco International Airpon Land Use Plan Consistency. State law establishes an Airport Land Use
Commission (ALUC) in each county to coordinate the compatibility of new developments near airports. The
ALUP contains chapters outlining land use policies for every airport in the county. ALUP Chapter V, San
Francisco International Airport Land Use Plan, applies to the geographic areas in incorporated cities and
unincorporated areas in the vicinity of San Francisco International Airport (SFO) that are affected by aircraft
noise, restrictions on the height of structures and/or objects near the airport, and airport/aircraft safety
guidelines. Since the eastern end of the suction piping alignment is located approximately 4,200 feet
(0.8 miles) from SFO and lies within some of the safety zones delineated for the airport, the provisions of the
ALUP are applicable to the proposed project.
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T'he ALUC has adopted Federal Aviation Regulation (FAR) Part 77, Objects Affecting Navigable Air Space,
that defines areas (called imaginary surfaces in the regula[ions) where height restrictions apply to na[ural and
man-made objects.40�4' Development projects that lie within these areas are subject to review by the Federal
Aviation Administration (FAA) for their potential effects on aircraft safety. In addition, the regulations
address potential light, glare, and air emissions that could distract aircraft operators. As discussed in Checklist
Item G, Hazardous Materials, under certain atmospheric conditions, the air space above Trousdale Drive is
used as a flight corridor for planes landing at or taking off from San Francisco International Airport.
However, because the proposed transmission main would be installed underground, and because the height of
the proposed pump station would be approximately 10 feet, the proposed project would not interfere with air
traffic, and would comply with the ALUP. The proposed facilities would not lie within the imaginary surface
boundary, and thus are not subject to FAA review; therefore, the proposed project would not conflict with the
ALUP and would have no impact.
North Burlingame/Rollins Road Specific Plan Consistency. The North Burlingame/Rollins Road Specific Plan
(specific plan), adopted September 20, 2004, discusses streetscape improvements along Trousdale Drive in the
vicinity of the SFPUC turnouts and proposed suction piping, including cutting tree wells into the existing
sidewalks. The Trousdale Drive/Magnolia Avenue intersection, where one of the SFPUC turnouts is located,
is targeted for "bulb out" curb extensions and tree wells, although it is specifically stated in the specific plan
that the curb extensions and tree wells would be constructed to avoid interference with the underground water
main. These streetscape improvements would be implemented either by the City or by developers when new
development occurs along the street frontage. As the proposed pump station and transmission main would not
conflict with the streetscape improvements, there is no conflict with the specific plan or any policies contained
in the specifc plan, and therefore the proposed project would have no such impact. No other agencies with
jurisdiction over the project have land use plans, policies, or regulations that would be affected by the proposed
project.
Analysis for I.3. The proposed project would not conflict with any known habitat conservation plans, natural
community conservation plans, or other approved local or regional conservation plans because there are no
approved plans that apply to the project area. The Peninsula Watershed Management Plan42 guides the SFPUC
in their management of the Watershed lands. The Peninsula Watershed Management Plan is also discussed in
Checklist Items D, G, and H which are Biological Resources, Hazards and Hazardous Materials, and
Hydrology and Water Quality, respectively. Policy WA22 of the plan states that proposals for new facilities
within the SFPUC-owned Watershed lands shall be limited to essential public services and not attractions unto
themselves, but incidental to the primary purposes of the Watershed (water quality, protection, or water
supply). The proposed project, as it is an essential water supply public service pipeline, would not conflict
with this policy. Therefore, as there are no approved habitat conservation or community conservation plans
that apply to the project site, and as the project would not conflict with the Peninsula Watershed Management
Plan, there would be no impact.
40 Imaginary surfaces are imaginary planes around the approach/departure path that identify the objects, such as a
building, to be evaluated for consistency with FAR Part 77, Objects Affecting Navigable Air Space.
41 Sa❑ Mateo County Comprehensive Airport Land Use Plan, Chapter V, San Francisco International Airport Land Use
Plan, p. V.-1, V.-20, 1996.
42 EDAW for San Francisco Public Utilities Commission, Peninsula Watershed Management Plan, Spring 2002.
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3. Conclusion
The proposed Trousdale Pump Station and Transmission Main project, during the construction phase, would
have a less-than-significant impact on the division of the community surrounding the project, but would
otherwise not divide the community. The proposed project would not conflict with the plans, policies and
regulations of ihe Burlingame Municipal Code Title 25 Zoning Ordinance, the ALUP, the North
Burlingame/Rollins Road Specific Plan, or any habitat conservation plans, natural community conservation
plans, or other approved local or regional conservation plans. There would be some minor conflicts with the
City of Burlingame General Plan; however, they would be considered a less-than-significant impact. Thus,
land use impacts would be less than significant.
J. MINERAL RESOURCES
1. Setting
General. Mining activities in California are regulated by the Surface Mining and Reclamation Act (SMARA)
of 1975. This Act provides for the reclamation of mined lands and directs the State Geologist to classify
(identify and map) the non-fuel mineral resources of the State to show where economically significant mineral
deposits occur and where they are likely to occur based upon the best available scientific data. Based on
guidelines adopted by the California Geological Survey (CGS), areas known as Mineral Resource
Zones (MRZs) are classified according [o the presence or absence of significant deposits, as defined below.
These classifcations indicate the potential for a specifc area to contain significant mineral resources.
• MRZ-1: Areas where available geologic information indicates there is little or no likelihood for
presence of significant mineral resources.
• MRZ-2: Areas where adequate information indicates that significant mineral resources are present or
where it is judged that it is a high likelihood for their presence exists. The zone shall be applied to
known mineral deposits or where well developed lines of reasoning, based upon economic geologic
principles and adequate data, demonstrate that the likelihood far occurrence of significant mineral
deposits is high.
• MRZ-3: Areas containing known mineral occurrences of undetermined mineral resource significance.
• MRZ-4: Areas of no known mineral occurrences where geologic information does not rule out the
presence or absence of significant mineral resources.
According to the Mineral Land Classification produced by the CGS, there are no MRZ-2 areas in the vicinity
of the proposed project. Therefore, there are no known significant mineral resources on the proposed project
site. The nearest significant mineral resource is Z.5 miles from ihe west end of the proposed transmission
main, in the Franciscan Complex greenstone and Calera limestone quarry at Rockaway Beach.
Pump Station. An MRZ-4 area encompasses the site of the proposed Trousdale Pump Station, which means it
is located in an area of no known mineral occurrences.
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Suction Piping. The turnout suction piping connections would be located in an area classified MRZ-1, which
means available information indicates there is little or no likelihood for the presence of significant mineral
resources. The suction piping would cross an area classified MRZ-3 (d), with mineral occurrences identified
as Merced Formation sand and sandstone, which is mined for fill at Colma and has been mined near the City of
Millbrae. The suction piping would cross from the MRZ-3 (d) area into the MRZ-4 area, which encompasses
the proposed pump station.
Discharge Piping. The discharge piping would connect to the proposed Trousdale Pump Station in the MRZ-4
area. It would cross into an area classified MRZ-3 (e), with mineral occurrences identified as Franciscan
Complex "sheared rocks" with minor greenstone and serpentines, which has been mined as aggregate at
several quarries along the San Francisco Peninsula.
2. Environmental Checklist and Discussion
Would the project:
1) Result in the loss of availability of a known mineral
resource that would be of value to the region and
the residents of the state?
2) Result in the loss of availability of a locally-
important mineral resource recovery site delineated
on a local general plan, specific plan or other land
use plan?
Discussion:
Significant Less Than
or Potentially Significant
Signiticant With Mitigation
Impact Incorporated
❑ ❑
❑ ❑
Less-
Than-
Significant
Impact No Impact
❑ ■
❑ ■
Analysis for J.1 and J2. Although the suction and discharge piping would cross areas where there are mineral
occurrences, those occurrences are of undetermined mineral resource significance. There are no known
significant mineral resources located on the proposed project site, and the site is not delineated as a locally-
important mineral resource by the CGS or on any land use plan. Also, construction of the water transmission
main would have a maximum excavation depth of approximately 8 feet, and therefore would not involve
extraction of any mineral resources. The proposed project would not have any impact on significant mineral
resources.
3. Conclusion
The proposed project would have no impact on significant mineral resources.
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K. NOISE
Background Information
Noise is often described as unwanted sound. Sound is defned as any pressure variation in air that the human
ear can detect. If the pressure variations occur frequently enough (at least 20 times per second), they can be
heard and are called sound. The number of pressure variations per second is called the frequency of sound,
and is expressed as cycles per second, called Hertz (Hz).
Measuring sound directly in terms of pressure would require a very large and awkward range of numbers. To
avoid this, the decibel scale was devised. The decibel (dB) scale uses the hearing threshold (20 micropascals),
as a point of reference, defined as 0 dB. Other sound pressures are then compared to [he reference pressure,
and the logarithm is taken to keep the ratios in a practical range. The decibel scale allows a trillion-fold
increase in pressure to be expressed as 120 dB, and changes in levels (dB) correspond closely to human
perception of relative loudness.
The perceived loudness of sounds is dependent upon many factors, including sound pressure level and
frequency content. However, within the usual range of environmental noise levels, perception of loudness is
relatively predictable, and can be approximated by the A-weighing network. There is a strong correlation
between A-weighted sound levels (expressed as dBA) and the way the human ear perceives noise. For this
reason, the A-weighted sound level has become the standard tool of environmental noise assessment. All noise
levels reported in this section are in terms of A-weighted levels. Table 3 provides the descriptions of the
various acoustical terminologies.
Community noise is commonly described in terms of the "ambient" noise level, which is defined as the
all-encompassing noise level associated with a given noise environment. A common statistical tool to measure
the ambient noise level is the average, or equivalent, sound level (Leq), which corresponds to a steady-state
A-weighted sound level containing the same total energy as a time-varying signal over a given time period
(usually one hour). The Leq is the foundation of the composite noise descriptor, Ldn, and shows very good
conelation with community response to noise.
The Day/Night Average Sound Level (Ldn) is based upon the average noise levcl over a 24-hour day, with a
+10 decibel weighing applied to noise occurring during nighttime (10:00 p.m. to 7:00 a.m.) hours. The
nighttime penalty is based upon the assumption that people react to nighttime noise exposures as though they
were twice as loud as daytime exposures. Because Ldn represents a 24-hour average, it tends to disguise
short-term variations in the noise environment.
Existing Conditions. The proposed Trousdale Pump Station expansion site is situated in a single-family
residential neighborhood and shares a property line with Franklin Elementary School that lays to the east and
north. The proposed transmission main alignment runs under Trousdale Drive, flanking primarily residen[ial
zones, fronting Franklin Elementary School, and eventually crossing beneath I-280 and into Crystal Springs
Watershed lands where there are no existing sensitive recep[ors.
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Table 3
Acoustical Terminology
Acoustics
Ambient Noise
jAttenuation
A-Weighting
Decibel or dB
CNEL
Frequency
�
Ldn
Leq
Lmax
Loudness
Noise
Threshold of
Hearing
Threshold of Pain
The science of sound.
The distinctive acoustical characteristics of a given space consisting of all noise sources audible at
that location. In many cases, the term ambient is used to describe an existing or pre-project
condition such as the setting in an environmental noise smdy.
The reduction of noise.
A frequency-response adjustment of a sound level meter that conditions the outp�t signal to
approximate human response.
Fundamental unit of sound, A Bell is defined as the logarithm of the ratio of the sound pressure
squared over the reference pressure squared. A Decibel is one-tenth of a Bell.
Community Noise Equivalent Level. Defined as the 24-hour average noise leve] with noise
occurring during evening hours (7 - 10 p.m.) weighted by a factor of three and nighttime hours
weighted by a factor of 10 prior to averaging.
The measure of the rapidity of alterations of a periodic signal, expressed in cycles per second or
hertz.
Day/Night Average Sound Level. Similar to CNEL but with no evening weighting.
Equiva]ent or energy-averaged sound level.
The highest root-mean-square (RMS) sound level measured over a given period of time.
A subjective term for the sensation of the magnitude of sound.
Unwanted sound.
The lowest sound that can be perceived by the human auditory system, generally considered to be
0 dB for persons with perfect hearing.
Approximately 120 dB above the threshold of hearing.
As noted above, the pump station is located near residences and a school. The main sources of existing noise
affecting these populations are traffic from the adjoining streets, particularly Trousdale Drive, and aviation
traffic associated with flights to and from the nearby San Francisco International Airport, approximately
1.7 miles northeast of the project site. Particularly heavy traffic volumes, and thus traffic noise, occur
throughout [he school year during drop-off and pick-up times at Franklin Elementary School. Noise
measurements taken the length of the proposed project indicate that the existing day-night average noise along
the alignment is approximately 68 Ldn.
A noise study was conducted for the proposed project on June 13 and July 19, 2005. Please refer to Figure 11,
below, for an aerial view of noise measurement locations. Noise measurements were taken in June during the
AM peak hours while school was in session at Franklin Elementary School and during the early AM hour
between 4:15 a.m. and 5:00 a.m. Measurements were taken at (1) the residence most exposed to pump noise,
approximately 80 feet north of the pump on the northeast corner of Trousdale Drive and Ashton Avenue; (2) a
residence on the north side of Trousdale Drive across from Franklin Elementary School's east driveway; (3)
the residence at 2920 Trousdale Drive, near Sebastian Drive; and (4) a resident's property edge on Trousdale
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-� ,,,,,,,�, ._„ FIGURE 11
v o ���30o boo i_..I Ciry o( Budingamr Q Noise Monitoring Loca[ion NOISE MONITORING
� ' 1 I � I ' I- NW' cornrr Trousdale and Ashton
Proposed Pro�ect LOCATIONS
a�, . ...., �""`-.. .."... ."....-... .. Feet = Dischargr Piping ?- Drivra�ac across from school
o 1 inch e uals 600 Ler�
� ,. ,, ,.,. = s��,;o� P;P;�� 3-'920 TrousJale Trousdale Pump Station and
'" Source ��SGS. DOQQ, �1onun Mro VE. t775. 4- Trousd:ilr approach �o I-2R0 Transmission Main Project
� and EIP.A.sociam-., Projen Locaiion, illlillIl ame, CA
i
Z June Z��i, �nJ GIS P�ogr�m, AuRu« 20'J5. g
Drive between Hunt Drive and the I-280 on/off-ramp. At the residence closest to the 2501 Trousdale Drive
pump station (identified as location 1 in Figure 11), the existing pump station contributes less [han 1 dBA to the
daily average noise level, which is approximately 66 dBA.43 During the early morning hours, however, when
1 there is little or no traffic, noise emissions from the pump station are more noticeable at this residence. Total
noise was measured at 57.3 dBA at the sidewalk in front of the pump station on Trousdale Drive, and
Table 4
Summary of Trousdale Pump Station Noise Study
52.8 dBA at the nearest residence across Trousdale Drive from the pump station. A background level of
47.5 dBA was measured with the pump off. Thus the incremental effect of the pump is 5.3 dBA at the closest
residence.44 The incremental effect of the pump would be less than 1 dBA (thus inaudible) at approximately
275 feet from the existing pump station.45 Refer to Table 4, below, for a summary of findings from the noise
study.
4:00 a.m. to 5:00 a.m. Average
Noise Level (Leq) in dBA
�
Location
Adjacent to pump
At closest residence
Pump Background Total
'
Daily Average Noise Level
(CNEL)
Pump Background Total
56.8 47.5 57.3 63.2 66 67.8
51.3 47.5 52.8 57.7 66 66.6
Source: EIP Associates, July 2005.
Notes:
During the early morning hours, the pump noise contribution to the early morning background noise is 5.3 dBA at the
closest residence.
Over the course of a day, the pump noise increment to the daily background noise is 0.6 dBA at the closest residence.
In addition to roadway noise, the site is affected by noise from the airport, including both overflight and
backblast noise. Other sources of noise include construction of the Peninsula Medical Center Replacement
Project at Trousdale Drive and El Camino Real, and helipad and ambulance traffic associated with hospital
activity.
43 Estimate based on peak AM measurement, which is generally 2 dBA higher than the 24-hour average according to the
Federal Transit Administration.
" EIP Associates noise measurements analysis, 4:15 a.m. - 5:00 a.m., July 19, 2005.
45 Assuming noise from point-sources dissipate at 6 dBA per doubling of distance from source to receiver.
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2. Environmental Checklist and Discussion
Would the project:
1) Exposure of persons to or generation of noise ]evels
in excess of standards established in the local
general plan or noise ordinance, or applicable
standards of other agencies?
2) Exposure of persons to, or generation of, excessive
groundbome vibration or groundborne noise levels?
3) A substantial permanent increase in ambient noise
]evels in the project vicinity above ]evels existing
without the project?
4) A substantial temporary or periodic increase in
ambient noise levels in the project vicinity above
levels existing without the project?
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, would the project expose people residing
or working in the project area to excessive noise
levels?
6) For a project within the vicinity of a private airs[rip,
would the project expose people residing or working
in the project area to excessive noise levels?
Discussion:
Signi�cant Less Than
or Potentially Significant
SigniCcant With Mitigation
Impact Incorporated
❑ ■
❑ ❑
❑ ■
❑ ■
❑ D
❑ ❑
Less-
Than-
Significant
Impact No Impact
❑ ❑
■ ❑
❑ ❑
❑ ❑
❑ ■
0 ■
Analysis for K.1, K.3, and K.4. Zoning and building ordinances of the City do not apply to the location or
construction of facilities for the production, generation, storage, treatment, or transmission of water in
accordance with the provisions of California Government Code Section 53091. Although, the City's Noise
Ordinance does not apply to the cons[ruction or the opera[ion of the proposed project, and no consistency
analysis is provided in this document for Noise Ordinance requirements, it is expected that construction
activities would comply with the construction hours set forth in Burlingame Municipal Code Section
18.07.130.
The Noise Element in the City's General Plan contains noise and land use compatibility recommendations for
evaluating the compatibility of new uses with the on-site noise environment.46 In addition, the Office of Noise
Control at the California Department of Health Services has published guidelines for evaluating the
ab gurlingame, City of. Burlingame General Plan, Noise E[ement. September 15, 1975.
�
�
�
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compatibility of various land uses as a function of community noise exposure. The suggested outdoor noise
levels suitable ro various land use categories are presented in Table 5. Residential, school, and hospital noise
levels are considered satisfactory with a CNEL of less than 60 dBA, while noise environments between 60 dBA
1 and 70 dBA CNEL are considered conditionalty acceptable, and noise environments between 70 and 80 dBA
CNEL are considered normally unacceptable. Under conditionally acceptable or normally unacceptable
conditions, new development should be undertaken only after a detailed analysis of noise reduction
�
requirements is made and necessary noise insulation features are included in the project design.
The following policies identified in the Ciry's Noise Element would apply to the proposed project:
• Policy N(A)
• Policy N(B)
• Policy N(C)
LJ
�
Preserve peaceful noise conditions in the city where they do exist.
Reduce annoying levels of noise for existing situations.
Achieve a peaceful acoustic environment in portions of the City [o be
developed.
Also, the General Plan states that a new project cannot cause an increase in the ambient noise level by more
than 5 dBA at the property line (General Plan page N-30).
Table 5
City of Burlingame — Outdoor Noise Level Planning Criteria
CNEL
Land Use Categories (dBA)
Public, Quasi-Public and Residential 60
Schools, Hospitals, Libraries, Auditoriums, Intensively Used Parks and Playgrounds, Public Buildings,
Single Family Home, Multiple Family Apartmenis and Condominiums, Mobile Home Parks
Passively-Used Open Space
Wilderness-Type Parks, Nature or Contemplation Areas of Public Parks
Commercial
Shopping Centers, Self-Generative Business, Commercial Districts, Offices, Banks, Clinics, Hotels and
Motels
Industrial
Non-Manufacturing Industry, Transportation, Communications, Utilities, Manufacturing
Source: City of Burlingame, Burlingnme Genernl Plan, Noise Element, page N-27, September 15, 1975.
45
65
75
Operational Noise. The transmission main would be underground and thus, operations of the transmission
main would not result in any noise level increases in the project vicinity.
The existing pump station operates throughout the day. The expanded pump station would include installation
of pumps with increased horsepower and flow rate over the existing pumps and an emergency generator. The
City anticipates that the hours during which the pump would operate would shift, so that the pumps would have
increased operation in the early morning hours and decreased operations during daytime hours.47
"' Tarantino Jeff, P.E., Er1er & Kalinowski, Inc., personal communication with EIP Associates, June 2005.
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Page 69
The pump station equipment would be housed within a concrete building that would be designed to muffle any
increase in noise levels. The City has stated that the concrete building would be designed to result in no net
noise increases, to the maximum extent practicable. As stated in Section III.B of this document, final design of
the concrete building would include noise-abating features such as:
• acoustical tiles on the interior surfaces of the pump station, roof, and walls;
• sound damping air vents oriented to direct sound away from adjacent sensitive uses; and ,
• sound-proofed roof hatches/skylights.48
As previously described, the existing daily average pump noise contribution to normal daily background noise
in the project vicinity is minor. However, the pump station is within a residential neighborhood and as noise
drops off during the night, pump noise becomes more audible. The current ambient noise level at the pump �
station property line between 4:15 a.m. and 5:00 a.m. is 57.3 dBA, which is a measure of the existing pump
noise plus normal background noise. The pump noise is most audible at this time when there is little or no
traffic. During this time, the isolated pump noise at the residential property line across Trousdale Drive from
the pump station is 5.3 dBA. This is the residence that experiences the most noise exposure from the pump,
thus the baseline, worst-case sensitive receptor included in the study. The closest residence to the west that
shares a property line with the pump station site is shielded by a berm and is enclosed by a wooden fence. �
Also, the house is nearly double the distance from the pump station as the nearest residence across the street
from the pump station, and is thus less susceptible to pump station noise than the residence across Trousdale
Drive.
The Noise Element of the General Plan establishes 60 dBA CNEL as the maximum suggested outdoor noise
level for land uses that include single and multiple family homes, hospitals, and schools (see Table 5, above).
The existing 24-hour noise level average at the closest residence across the street from the pump station is
about 67 dBA CNEL, to which the pump noise contributes less than 1 dBA. While the General Plan
acknowledges that suggested "levels are most probably unattainable in much of Burlingame," and, as indicated
above, the project area already exceeds this level, the pump station upgrade with noise abatement enclosure
would not contribute substantially to further increase the 24-hour average outdoor noise level in the project ,
area. During the early morning hours, the existing pump increases noise levels at the closest property across
Trousdale Drive by about 5 dBA.49 Without proper acoustical shielding applied to the concrete building,
projeci noise impacts would be potentially significant. The mitigation provided below to ensure application of
adequate acoustical shielding for pump, generator, and other mechanical noise within the proposed concrete
building, could potentially reduce overall outdoor noise levels in the area. Accordingly, with said mitigation,
the project would have a less-than-significant impact on existing ambient noise levels in the project area.
Construction Noise. Pump station construction would be approximately one year long, suction piping
construction would be approximately one year long, and construction of discharge piping would be
approximately 16 months long. Construction noise, which would occur along Trousdale Drive and adjacent to
48 Ben Wright, EIT, Staff Engineer, Olivia Chen Consultants, electronic communication with EIP Associates, May 25,
2 W5.
49 Difference in noise levels, as measured, with pump on as compared to pump off, as indicated in Table 4.
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residential and school property, would result in significant noise emissions that would exceed General Plan
noise standards along those areas during the phased construction period. Typical construction equipment
would include jackhammers, front loaders, and trucks, concrete mixers, concrete pumps, cranes, generators,
� pumps, and other power tools. The trucks and jackhammers would emit the greatest amount of noise, resulting
in noise levels of approximately 90 dBA at adjacent sensitive properties. Table 6 identifies typical construction
equipment and associated noise emissions at 50 and 100 feet with and without noise abatement features. It
should be noted that construction impacts would be temporary, lasting during the construction period and
shifting/relocating along the construction alignment. It should also be noted that existing ambient noise levels
at sensitive receptor locations surrounding the project site already exceed General Plan standards. Also,
construction of the Peninsula Medical Center Replacement Project along Trousdale Drive and EI Camino Real
is ongoing as of the preparation of this document and is anticipated to continue for approximately six more
� years, thus contributing the ambient noise levels during construction of the proposed project. Nonetheless,
temporary impacts resulting from construction of the proposed project would exceed adopted noise standards
and would be substantial at adjacent sensitive receptor locations, thus resulting in a significant impact.
MITIGATION MEASURES. Implemen[ation of [he mi[igation measures listed below would reduce
permanent and temporary noise impact to less-than-significant levels. Mitigation Measures NO-1 and
NO-2, below, would ensure that operation noise impacts would be less than significant. Mitigation
Measures NO-3 through NO-5, below, would ensure that neighboring receptors would be provided
advanced notice of the construction activities and would provide means for the City to respond to
concerns of those receptors.
NO-1. Provide pump station shielding. The new pump station shall be designed and built to
ensure that it produces no more than 1 dBA of noise level increase over existing ambient
levels when all the pumps are operating at the most vulnerable residential property, that
being the residence directly across Trousdale Drive from the pump station site. If the new
pump produces the same noise levels as the existing pump, the concrete shielding would
need to attain a 10 dBA reduction; if the new pump is louder, there would need to be
additional shielding to reduce this impact.
NO-2. Monitor new pump operatiorcal noise. The City or its consultant shall take noise
measurements during the sensitive hours of the night or early morning once the new pump
is installed and operational. If noise increase from the pump station is determined to be
greater than 1 dBA at the closest residence, additional noise shielding shall be applied
within 90 days.
ND-3. Provide public notifcation during construction. The City or its construction contractor
shall provide advance notice, between two and four weeks prior to construction, by mail to
all sensitive receptors50 and residences within 300 feet of construction. The announcement
shall state specifically where and when construction would occur in the area.
So Examples of sensitive receptors include hospitals, schools, convalescent facilities, and residential areas.
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Table 6
Average Noise Levels and Abatement Potential of Construction Equipment Noise
at 50 and 100 Ft. (dBA)
Equipment
Earthmoving
Front Loaders
Backhoes
Dozers
Tractors
Scrapers
Graders
Trucks
Pavers
Materials Handling
Concrete Mixer
Concrete Pump
Crane
Derrick
Stationary
Pumps
Generator
Compressors
Impact
Jack Hammers
Pneumatic Tools
Noise Level at
50 Feet
(Before Mitigation)
79
85
80
80
88
85
91
89
85
82
83
88
76
78
81
88
86
With Feasible
Noise Controla
(After Mitigation)
75
75
75
75
80
75
75
80
75
75
75
75
75
75
75
75
80
Noise Level at
100 Feet
(Before Mitigation)
73
79
74
74
82
79
85
83
79
76
77
82
70
72
75
82
80
With Feasible
Noise Controla
(After Mitigation)
69
69
69
69
74
69
69
74
69
69
69
69
69
69
69
69
74
Other
Saws 78 75 72 69
Soil Vibrators/ 76 75 70 69
Compactors
Source: U.S. Environmental Protection Agency. Noise from Construction Equipment and Operations, Building Equipment, and
Home Appliances, December 1971.
Note:
a. Feasible noise control methods include selection of quieter procedures or machines and implementation of noise-control features
requiring no major redesign or extreme cost.
NO-4. Provide public liaison during construction. The City shall identify and provide a public
liaison person before and during construction to respond to concerns of neighboring
receptors, including residents, about noise construction disturbance. Procedures for
reaching the public liaison officer via telephone or in person shall be included in notices
distributed to the public in accordance with Mitigation Measure NO-3.
,
�
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NO-5. Implement Best Management Practices to reduce construction noise. The City shall
incorporate the following practices into the construction documents to be implemented by
the project contractor.
' a. Limit construction hours to between 7:00 a.m. and 7:00 p.m. on weekdays, and
9:00 a.m. to 6:00 p.m. on Saturdays, and 10:00 a.m. to 6:00 p.m. on Sundays and
holidays unless night work is reviewed and authorized by the Building Official.
b. Maximize the physical separation between noise generators and noise receptors.
Such separation includes, but is not limited to, the following measures:
• use heavy-duty mufflers for stationary equipment and barriers around
particularly noisy areas of the site or around the entire site;
• use shields, impervious fences, or other physical sound barriers to inhibit
transmission of noise to sensitive receptors;
• locate stationary equipment to minimize noise impacts on the community; and
• minimize backing movements of equipment.
c. Use quiet construction equipment whenever possible.
d. Impact eyuipment (e.g., jack hammers and pavement breakers) shall be
hydraulically or electrically powered wherever possible to avoid noise associated
with compressed air exhaust from pneumatically-powered tools. Compressed air
exhaust silencers shall be used on other equipment. Other quieter procedures, such
as drilling rather than using impact equipment, shall be used whenever feasible.
e. Prohibit unnecessary idling of internal combustion engines.
f. Select routes for movement of construction-related vehicles and equipment in
conjunction with the Burlingame Planning Department so tha[ noise-sensitive areas,
including residences and schools, are avoided as much as possible.
1 Analysis for K.2. Operation of the proposed facilities would not result in excessive groundborne vibration
because the rypes of facilities proposed include water distribution facilities such as pumps, a pipeline, and a
generator, which do not emit excessive groundborne vibrations.
Minor groundborne vibration would occur during project construction as a result of pavement breaking and
vehicle movement. Activities that typically cause substantial ground vibration, such as pile driving or blasting,
are not proposed for this project. Because any groundborne vibration would be minor, temporary, and at
levels not in excess of normal construction activities, the impact would be considered less than significant.
� Analysis for K.S. The proposed project is located within the airport land use plan for the San Francisco
International Airport, and both overflight and backblast noise from aviation traffic occurs on the proposed site.
The site does not fall within the 60 dB CNEL contours from noise generated by the airport, indicating that
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airport noise. at the site should be less than 60 dB. As a result, no impact would occur due to noise from
aviation traffic.51
Analysis for K.6. There would be no noise impact due to proximity to a private airstrip because the project is
not located within the vicinity of a private airstrip.
3. Conclusion
The proposed project would increase outdoor noise level goals established in the General Plan and expose
residences to groundborne vibrations during project construction. Increase in permanent ambient noise levels
could occur as a result of the project, but would be mitigated to less than significant levels, or possibly even
lower than existing levels, with implementation of noise shielding or insulation around the pump station in the
form of a concrete building. Temporary increase in ambient noise levels would occur due to project
construction. No impact would occur due to noise from aviation traffic.
L. POPULATION AND HOUSING
1. Setting
The proposed project is located adjacent to residential areas. According to the 2002 Housing Element of the
City's General Plan, the City of Burlingame is physically built out.
2. Environmental Checklist and Discussion
Would the project:
1) Induce substantial population growth in an area,
either directly (for example, by proposing new
homes and businesses) or indirectly (for example,
through extension of roads or other infrastructure)?
2) Displace substantial numbers of existing housing,
necessitating the construction of replacement
housing elsewhere?
3) Displace substantial numbers of people,
necessitating the construction of replacement
housing elsewhere?
Significant Less 'Chan
or Potentially Significant
Significant With Mitigation
Impact Incorporated
❑ ❑
❑ 0
❑ ❑
Less-
Than-
SigniGcant
Impact No Impact
❑ ■
❑ ■
❑ ■
�
,
�
51 San Mateo County. Comprehensive Airport Land Use Plan. December 1996.
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Discussion:
Analysis for L.1. The proposed project would not include any new homes or roads. The only new
infrastructure would be the replacement of the existing Trousdale Pump Station with a larger, more efficient
design, and the transmission piping which would connect the water supply, the proposed pump station, and the
Mills Tank. This proposed project is par[ of the City of Burlingame's CIP. The proposed project would
� replace the existing aging water system infrastructure with new infrastructure and improve water flow,
pressure, and fire protection capabilities in existing neighborhoods. Once the proposed project is constructed,
the existing Trousdale Pump Station, the Donnelly Pump Station and Tanks, and the Alcazar Tanks would be
decommissioned. There will be no increase in supply of water to the City, only improved infrastructure. As
mentioned above, the City is physically built out. The unincorporated area in the Hills portion of Burlingame
(see Figure 2) is comprised of a residential subdivision of 420 units which is entirely built out. The proposed
project would not create additional capacity for new residents above the current infrastructure's capacity;
therefore, the project would not induce substantial population growth.
Analysis for L.2. In the 2005-2006 fiscal year, there were 14.78 full-time equivalent employees in the City's
Water Department. The proposed project and the decommissioning of the aging pump stations and tanks are
not projected to necessitate a change in the number of employees in the Water Department; therefore the
project would cause no change in population or housing demand in the City based on employment.
� Analysis for L.3. No existing housing or people would be displaced by the proposed project, and no
replacement housing would need to be constructed elsewhere.
3. Conclusion
The project would not result in substantial increases in population or housing demand by displacing houses or
residents or by creating a substantial increase in employment.
M. PUBLIC SERVICES
� 1. Setting
Public services to the proposed project are provided by the City of Burlingame and include the Central Fire
Department, which serves Burlingame and Hillsborough with five engine companies and one truck company in
five fire stations; the Burlingame Police Department with a single station; and the Parks and Recreation
Department with 17 parks and playgrounds. Schools are provided by the Burlingame School District, which
operates five elementary schools and a middle school; and the San Mateo Union High School District, which
operates eight high schools.
,
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2. Environmental Checklist and Discussion
Would the project:
Signiticant
or Potentially
Significant
Impact
Less Than
Significant
With Mitigation
Incorporated
1) Result in substantial adverse physical impacts
associated with the provision of new or physically
altered governmental facilities, the need for new or
physically altered governmental facilities, the
construction of which could cause significant
environmenta] impacts, in order to maintain
acceptable service ratios, response times or other
performance objectives for any of the public
services:
Fire Protection?
Police Protection?
Schools?
Parks?
Other Public Facilities?
Discussion:
❑
❑
❑
❑
❑
Less-
Than-
Significant
Impact
No Impact
❑ 0 ■
0 ❑ ■
0 ❑ ■
❑ ❑ ■
❑ ❑ ■
The proposed project would expand the existing Trousdale Pump Station and construct a new transmission
main to the Mills Tank. As discussed in Checklist Item L, Population and Housing, the project would not
result in substantial increases in residential or employment population or housing within Burlingame, nor would
the project involve new structures that would trigger increased activity within the project site during operation.
The proposed project would thus not create additional demand on fire protection, police protection, schools, or
parks during operation.
While 1,500 square feet of school lands would be converted to pump station facility use with the proposed
project, it would not trigger the need for new school facilities because the portion to be converted is not a
substantial amount of land and is a landscaped area that serves no specific or active school function.
Additionally, project components would enhance fire protection services within the Hills area of the City. The
proposed pump station would have the capability to pump the maximum day flow combined with fire flow.
Also, according to the City of Burlingame's Water System Master Plan, the existing 12-inch transmission
piping which connects the Mills Tank to Burlingame's distribution system has inadequate capacity to meet the
fire flow demands due to excessive head loss. The proposed 24-inch discharge piping would remedy this fire
protection inadequacy, and would provide a redundant line from the Mills Tank to the City. The design for the
proposed project specifies that if the existing hydrants do not meet fire flow requirements after the change in
discharge piping, high-pressure hydrants would be installed every 500 feet, so that there would be no impact on
C�
�
�
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fire protection services within the City. At the time of this document, under the proposed project, the
installation of one fire hydrant is planned at the east end of Trousdale Drive near the I-280 off-ramp.
�
3. Conclusion
The proposed Trousdale Pump Station and Transmission Main project would have beneficial impacts on fire
protection services and no impact on all other public services.
N. RECREATION
1. Setting
The proposed Trousdale Pump Station would be located between a residential area and Franklin Elementary
School. No recreation facilities are currently provided on the existing pump station site or on the landscaped
school grounds, which would be purchased for the construction of the new pump station, and no recreation
facilities are proposed for the replacement project. There are also no City parks or recreation facilities along
Trousdale Drive. The proposed transmission main would be a buried connection under Trousdale Drive from
the SFPUC water supply turnouts to the proposed Trousdale Pump Station, then from the pump station to the
Mills Tank, located in Crystal Springs Watershed lands. The Crystal Springs Watershed area is a designated
biosphere preserve with areas of restricted recreational access and is considered by the California CDFG as a
game refuge.
2. Environmental Checklist and Discussion
Would the project:
� 1) Increase the use of existing neighborhood and
regional parks or other recreational facilities such
that substantial physical deterioration of the facility
would occur or be accelerated?
2) Does the project include recreational facilities or
require the construction or expansion of
recreational facilities which might have an adverse
physical effect on the environment?
Discussion:
Significant Less Than
or Potcntially Significant
Signiticant With Mitigation
Impact Incorporated
❑ ❑
❑ ❑
Less-
Than-
Significant
Impact No Impact
❑ ■
❑ ■
Anatysis for N.1 and N.2. The proposed project consists of a replacement pump station and new transmission
piping. No new recreational facilities would be constructed as part of the project. Also, the project would not
occur within recreation facilities and would thus not directly degrade such facilities. The proposed pump
station would occur within the existing pump station site and partially within a landscaped portion of the
Franklin Elementary School grounds. The transmission main portion of the project within Crystal Springs
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Watershed lands is within SFPUC jurisdiction. Access to this area is granted by advance permit only through
the SFPUC. During construction, vehicles may potentially drive on Sawyer Trail, a nearby recreational trail,
to access the construction site. However, use of the trail would be temporary and would not obstruct
recreational use once the proposed project is implemented.
As discussed in Checklist Item L, Population and Housing, the project would not induce population growth
within the City since the new facilities would maintain the same level of water provision to the existing
population in its built-out service area. The proposed project would thus not generate an increase in demand for
neighborhood or regional parks or other recreation facilities. Therefore, there would be no adverse physical
effect on the environment due to the construction or expansion of recreational facilities.
3. Conclusion
The project would have no impact on recreational facilities.
O. TRAFFIC
1. Setting
The proposed project site is located primarily along Trousdale Drive in the City of Burlingame. Trousdale �
Drive is a four-lane east-west roadway that extends from I-280 to California Drive. The posted speed limit is
35 miles per hour (mph) with a 25-mph school zone in front of Franklin Elementary School. On-street parking �
is provided along Trousdale Drive. Traffic controls along Trousdale Drive include a signal at Magnolia
Avenue and several stop s�gn-controlled intersections. At Marco Polo Way, eastbound Trousdale Drive traffic
and northbound Marco Polo Way traftic are required to stop. At Ogden Drive, westbound Trousdale Drive
traffic and southbound Ogden Drive traffic are required to stop. The City of Burlingame is responsible for
planning, constructing, and maintaining local public transportation facilities, including City Streets such as
Trousdale Drive.
The proposed alignment falls within the I-280 right-of-way. I-280 is an eight- to ten-lane freeway running
primarily north-south through San Francisco, San Mateo, and Santa Clara Counties. It serves as a major ,
commuter route between the Peninsula and South Bay and, along with US Highway 101 (US 101), is a major
north-south corridor on the peninsula. The peak directions of travel along I-280 are southbound during the
morning peak period and northbound during the evening peak period. In 2004, average daily traffic volume on
I-280 in the project area averaged 112,000 to 118,000 trips.sZ The California Department of Transportation
(Caltrans) has authority over I-280. As such, Caltrans approves the planning and design of improvements for
I-280, and issues encroachment permits for non-state agency work proposed within its rights-of-way. ,
The proposed suction piping alignment would extend from Trousdale Drive into Marco Polo Way and to the
Trousdale Drive/Magnolia Avenue intersection. Marco Polo Way is a two-lane roadway that runs north-south �
and connects Trousdale Drive and Davis Drive. On-street parking is provided on both sides of the street.
�
52 California Department of Transportation, Traffic and Vehicle Data Systems Unit, 2004 All Traffic Volumes on
CSHS, http://www.dot.ca.gov/hq/traffops/saferesr/trafdata/2004all.htm, accessed August 8, 2005. �
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Magnolia Avenue is a two-lane roadway that extends from Trousdale Drive into the City of Millbrae to the
north. It forms a signalized intersection with Trousdale Drive.
�
�
�
2. Environmental Checklist and Discussion
1) Cause an increase in traffic which is substaatial in
relation to the existing traffic load and capacity of �
the sveet system (i.e., result in a substantial
increase in either the number of vehicle trips, the
volume to capacity ratio of roads, or congestion at
intersections)?
Signiticant Less Than Less-
or Potentially Significant Than-
Significant With Mitigation Significant
Would the project: Impact Incorporated Impact No Impact
2) Exceed, either individually or cumulatively, a level
of service standard established by the county
congestion management agency for designated
roads or highways?
3) Result in a change in air traffic patterns, including
either an increase in traffic levels or a change in
location that results in substantial safety risks?
4) Substantially increase hazards due to a design
feature (e.g., sharp curves or dangerous
intersections) or incompatible land uses (e.g., farm
equipment)?
5) Result in inadequate emergency access?
6) Result in inadequate parking capacity?
7) Conflict with adopted policies, plans, or programs
supporting alternative transportation (e.g., bus
turnouts, bicycle racks)?
Discussion:
❑
❑
❑
❑
❑
❑
■ ❑ ❑
■ ❑ ❑
❑ ❑ ■
■ ❑ ❑
❑ ■ ❑
�
C
■ ❑
❑ ■
Analysis for O.1 and 0.2. Operation of the proposed project would not result in any increase in traffic as it
would involve expansion of an existing pump station and construction of a new underground water transmission
� main. The only trips that would be associated with the project are minimal maintenance trips by the City's
Public Works Department staff, primarily to the pump station. Such trips already occur with the existing pump
station. Additionally, the project would remove from operation the Donnelly and Alcazar facilities, thereby
eliminating any maintenance trips at those sites. Operation of the project is therefore well below the San
Mateo County Congestion Management Agency standard of 100 peak hour trips for a traffic impact study, and
would not generate additional irips so that the capacity of affected roadways would be exceeded and/or
acceptable level of service standards would be exceeded. Operational impacts on roadway capacity and level of
service along the proposed alignment would thus be less than significant.
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Construction of the pump station would require construction vehicle trips to and from the pump station site.
Pump station construction would have a less-than-significant impact on traffic as there would be no obstruction
of roadways, and the associated number of construction vehicle trips would not be enough to result in
exceedance of Trousdale Drive capacity or level of service standards. Transmission main construction would
occur within the Trousdale Drive, Marco Polo Way, and I-280 rights-of-way. Construction within Trousdale
Drive and Marco Polo Way would require lane closures that would temporarily reduce roadway capacity. It
should be noted that construction along these roads would be segmented and closures would not occur
simultaneously throughout the length of the alignment. At minimum, two lanes would be maintained along the
affected portions of Trousdale Drive and one lane would be maintained along the affected portion of Marco
Polo Way. Traffic counts conducted by Fehr and Peers Associates in 2004 for the Peninsula Medical Center
Replacement Project Environmental Impact Report (prepared by EIP Associates) determined that levels of
service along Trousdale Drive intersections, from Sequoia Avenue to Magnolia Avenue, are within acceptable
levels. The length of Trousdale Drive that was studied by Fehr and Peers is the portion of Trousdale Drive
with heaviest flow because retail, office, and hospital uses occur at these intersections. However, considering
that roadway capacity along the affected portions of Trousdale Drive would reduced from four to two lanes,
impacts would be potentially significant for traffic flow, even if existing levels of service are acceptable.
Construction within the I-280 right-of-way would not result in significant impacts on traffic because the
required Caltrans encroachment permit for the project would ensure implementation of appropriate traffic
control as indicated in State Standard Plans T-10 through T-14, and where required by plan, the use of a
flashing arrow-board is mandatory. Under the permit, traffic control would be restricted to closure of �
shoulders between 9:00 a.m. and 3:00 p.m. Monday through Friday, holidays excepted. As stated in Section
llI, Project Description, of this document, Caltrans has reviewed and preliminarily approved these construction
methods and locations as a part of the encroachment permit approvals process; however, the final project �
design is subject to further review and approval by Caltrans before construction can begin. Construction traffic
impacts within the I-280 right-of-way would thus be less than significant.
MITIGATION MEASURE. Mitigation Measure TR-1 below would reduce potentially significant
construction-related transportation impacts within City streets to less than significant.
TR-1 Develop and implement Construction Tra�c Management Plan. The City shall prepare �
and implement a construction phasing plan and traffic management plan that defines how
traffic operations would be managed and maintained during each phase of construc[ion. In
addition, the property owners of all institutions, businesses, and residents adjacent to the
construction areas shall be consulted. To the maximum practical extent, the plan shall:
• detail how access would be maintained to individual property owners and businesses
where cons[ruction activi[ies may interfere with ingress and egress. Any business
driveway closures shall take place during non-business hours;
• specify predetermined haul routes from staging areas to construction sites and to
disposal areas of agreement with the City prior to construction. The routes shall follow
streets that provide the safest route and have the least impact on traffic;
�
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• during construction, require the contractor to provide information to the public using
signs, press releases, and other media tools of traffic closures, detours or temporary
displacement of left-turn lanes;
�
• identify a single phone number that property owners and businesses can call for
construction scheduling, phasing, and duration information, as well as for complaints;
and
• identify construction activities that must take place during off-peak traffic hours or
result in temporary road closures due to concerns regarding traffic safety or traffic
congestion.
Analysis for 0.3. The proposed project would involve expansion of existing and installation of new water
distribution facilities. No aircraft use is required for operation or construction of the proposed facilities. As
such, the project would not lead to an increase in air traffic, and would have no impact.
Analysis for 0.4. The project would construct a fenced-off water pump station and an underground
� transmission main. As such, the project would not construct any permanent design features that would pose a
traffic hazard. However, construction of the proposed project may cause temporary roadway obstructions and
could thus increase hazards if roadway obstructions are not properly demarked. Construction activities,
although temporary, would thus be potentially significant.
,
'
�
�
i
MITIGATION MEASURE. Implementation of Mitigation Measure TR-1 above, which would require
safety features such as signage and public notification of construction activities and closures, would
reduce potentially significant construction-related transportation impacts to less than significant.
Analysis for 0.5. The proposed project construction would lead to temporary roadway obstructions along
Trousdale Drive and Marco Polo Way, which would potentially impact access for emergency service vehicles,
if adequate coordination for emergency access is not conducted. The potentially impacted roadways are
currently serviced by the City of Burlingame Fire and Police departments and the Peninsula Medical Center for
emergency access. The Peninsula Medical Center is located directly off of Trousdale Drive at El Camino
Real, and has vehicular access from EI Camino Real, Marco Polo Way, and the Ray Park neighborhood to the
south. Roadway obstructions during construction, especially in the vicinity of the hospital, would be a
potentially significant impact.
MITIGATION MEASURE. Mitigation Measure TR-2 below would reduce potentially significant
construction-related roadway obstructions impacts on emergency service providers to less than
significant.
TR-2 Inform emergency service providers of potentia! lane closure activities. The City shall
inform emergency response providers, such as the City's Fire and Police Departments, and
personnel at the Peninsula Medical Center, of potential lane closures. The City shall
inform the emergency response providers prior [o project commencement to prevent
impacts to emergency routes and shall amend its plans, if necessary, based on emergency
provider input.
w
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Page 81
Analysis for 0.6. The proposed project requires a small number of staff at the project site for periodic and
routine maintenance activities, and adequate parking for these staff would be provided with the project.
Parking during the construction of the pump station would occur on site. During the transmission line
construction existing street parking along Trousdale Drive would be reduced due to roadway obstruction, and
construction staging that would occupy up to two lanes along Trousdale Drive and one lane along Marco Polo
Way. Construction along these roads would be segmen[ed and closures would not occur simultaneously
throughout the length of the alignment. Additionally, based on site observations by EIP, street parking along
Trousdale Drive is not fully occupied during daytime and nighttime hours. Therefore, the surplus in street
parking spaces would offset the temporarily parking loss along affected portions of the alignment as
construction shifts/relocates during the phased project construction. Impacts are thus expected to be less than
signifcant.
Analysis for 0.7. A Bicycle Transportation Plan has been adopted by the City to provide guidance for future
bicycle improvements and programs. Current bicycle routes in the project vicinity are along Murchinson Drive
parallel to Trousdale Drive to the north, along Ashton Avenue crossing Trousdale Drive near the proposed
pump station, through the parking lot of Franklin Elementary School to Quesada Way.s3
The proposed project would not conflict with the adopted goals and policies of the Bicycle Transportation Plan.
The proposed project area is in the vicinity of an existing bicycle route which runs through the Franklin
Elementary School parking lot and across Trousdale Drive in an area of the proposed transmission main
alignment. The proposed project would not encroach into the designated bicycle routes and would thus not
conflict with the goals of the plan. There would be no impac[ on the adopted policies, plans, or programs
supporting alternative transportation.
3. Conclusion
As described in detail above, the traffic impacts imposed by this project would be temporary and occur only
during the construction phase, primarily as a result of road obstruction during the transmission line
construction. Mi[igation measures mentioned above would mi[igate these impacts to a less-than-significant
level.
P. UTILITIES AND SERVICE SYSTEMS
1. Setting
The project site is located within the jurisdiction of the Bay Area Regional Water Quality Control Board
(RWQCB). Existing site drainage is towards Trousdale Drive and discharges into the Ciry storm drain system
along Trousdale Drive. Storm runoff from the site currently flows to a catch basin that is connected to a 45-
inch reinforced concrete pipe just downstream in front of the Trousdale Pump Station. Storm drainage is
provided by the City of Burlingame's underground storm water drainage system. The City receives its potable
water from the SFPUC system, which obtains its water supply primarily from the Hetch Hetchy System. Six
turnouts on the SFPUC's Sunset Supply and Crystal Springs No. 3 pipelines supply the City between 4 to 5
mgd. The current waste services provider for the area is Browning Ferris Industries (BFI), which hauls the
53 City of Burlingame, Bicycle Transportation Plan, Figure 2- 1972 Adopted Bikeways.
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,
�
�
�
�
�
�
�
�
garbage it collects to the Ox Mountain Landfill near the City of Half Moon Bay. Ox Mountain is permitted by
the California lntegrated Waste Management Board (CIWMB) to receive 3,598 tons per day or 1.3 million tons
per year. The landfill's remaining capacity is 44.6 million cubic yards, which translates to a 12-year life
through 2018,sa
2. Environmental Checklist and Discussion
Would the project:
1) Exceed wastewater treatment requirements of the
applicable Regional Water Quality Control Board?
2) Require or result in the construction of new water
or wastewater treatment facilities or expansion of
existing facilities, the co�struction of which could
cause significant environmental effects?
3) Require or result in the construction of new storm
water drainage facilities or expansion of existing
facilities, the construction of which could cause
significant environmental effects?
4) Have sufficient water supplies available to serve the
project from existing entitlements and resources, or
are new or expanded entitlements needed?
5) Result in a determination by the wastewater
treatment provider which serves or may serve the
project that it has adequate capacity to serve the
project's projected demand in addition to the
provider's existing commitments?
6) Be served by a landfill with sufficient permitted
capacity to accommodate the project's solid waste
disposal needs?
7) Comply with federal, state, and local statutes and
regulations related to solid waste?
Discussion:
Significant
or Potentially
Significant
Impact
❑
❑
❑
0
❑
❑
0
Less Than Less-
Significant Than-
With Mitigation Signiticant
Incorporated Impact No Impact
❑
❑
❑
❑
❑
0
0
■ ❑
❑ ■
❑ ■
❑ ■
❑ ■
■ ❑
■ ❑
Analysis for P.1. As discussed in Checklist Item H, Hydrology and Water Quality, the City must obtain a
NPDES General Permit for storm water discharges associated with construction activity. The RWQCB would
issue the NPDES permit for the project to ensure that the project, including its construction, would not result in
pollution of surface waters. Additionally, an on-site catch basin would be constructed to discharge storm water
54 Solid Waste Information System, California lntegrated Waste Management Board, http://www.ciwmb.ca.gov/SWIS/,
Accessed August 9, 2005.
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and runoff into the City storm drain system, thus minimizing runoff and flooding impacts off-site. The
required NPDES permitting would ensure impacts would be less than significant.
Analysis for P.2, P.4, and P.S. As described in Section III, Project Description, the City has initiated a five-
year CIP to replace old water system infrastructure and improve water flow, pressure, and fire protection �
capabilities in local neighborhoods. The Hills area of the City is currently serviced by the existing Trousdale
Pump Station. The proposed project would replace the existing pump station and improve water distribution in
the Hills portion of the City. The project would continue the level of service under current supplies and would
not increase water flow within the distribution system, thus not increasing water intake from SFPUC supplies.
The proposed project involves the construction, improvement, and operation of water supply facilities, in
response to local water treatment, distribution, and supply needs. The project itself would not create additional
demand for water or wastewater supply facilities. Therefore, no impact would occur.
The proposed alignment for the suction piping crosses at least 23 other utility lines. Between the
Trousdale/Magnolia Turnout, the Marco Polo Turnout, and the Trousdale Pump Station, the suction piping
alignment crosses at least 13 domestic water lines, six sanitary sewers, and four storm drains. These utilities
are operated by the City's Public Works Department, which has full knowledge of the location and service
levels of each utility that would be crossed by the proposed alignment. The Public Works Department has
proposed a minimum 1-foot distance would be maintained between the utilities, and a minimum 3-foot
cover/backfill material depth would be required atop the higher utility. All sewer crossings shall be
constructed in accordance with State Separation Criteria for Water Service, per the Department of Health
Service. By identifying and avoiding any existing utilities, short-term impacts related to construction would be
avoided, and no construction impacts would be anticipated for the project.
The proposed project would connect to existing SFPUC infrastructure at three locations. The piping would
connect to the Crystal Springs No. 3 transmission line at the Trousdale/Magnolia turnout, the Sunset Supply
transmission line at the Marco Polo Turnout, and at the Mills Tank in Crystal Springs Watershed lands. The
connection of the new piping to this infrastructure would be coordinated by the City with the SFPUC, along
with permitting requirements by the SFPUC. The coordination with the SFPUC would result in no
construction impacts from the proposed connection on the existing infrastructure.
�
Analysis for P.3. The 1,500-square-foot portion of Burlingame School District property that the Public Works
Department would acquire for the project is currently permeable, vegetated land. This area of land would be �
developed and paved to accommodate the new pump station. Thus, impervious area at the pump station site
would increase from approximately zero square feet to 1,500 square feet. As a result of the increase in
impervious surface area at the project site, storm water flows are expected to increase. However, the increase
in storm water flow is not expected to exceed the capacity of existing storm water drainage facilities.ss There
would be one 12-inch by 12-inch catch basin on site that would discharge into the City storm drain system
along Trousdale Drive via a 6-inch storm drain pipe.
ss Mongahan, Philip, Senior Civil Engineer, Public Works Department, personal communication with EIP Associates,
August 1 l , 2005.
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As noted above, local drainage areas surrounding the pump station building would be routed to a proposed
storm drain inlet at the center of the project site and connect to an existing storm drain in Trousdale Drive.
The RWQCB would review the storm sewer design plans and calculations as part of the approval/permitting
process for the NPDES permit. The proposed project would not induce an increase in population, therefore the
implementation of the proposed project on utilities and service systems is considered to result in no impacts.
Analysis for P.6 and P.7. Project construction would generate solid waste in the form of waste asphalt,
structure demolition, tree and soil removal. These activities would necessarily comply with federal, State, and
local statutes and regulations governing solid waste. Therefore, impacts on solid waste disposal due to
implementation of the proposed project are considered less than significant.
3. Conclusion
The impacts of the project on utiliry and service systems is considered to be less than significan[, as it would
comply with all applicable rules and regulations and not create any additional demand for water or wastewater
facilities. The identification of the locations of all existing utility lines in the area would avoid construction
impacts from the project.
Q. MANDATORY FINDINGS OF SIGNIFICANCE
Significant or Less Than Less-
Potentially Significant Than-
Significant With Mitigation Significant
Would the project: Impact Incorporated Impact No Impact
� l) Does the project have the potential to degrade the
quality of the environment, substantially reduce the � � � �
habitat of a fish or wildlife species, cause a fish or
wildlife population to drop below self-sustaining
levels, threaten to climinate a plant or anima]
community, reduce the number or restrict the range
of a rare or endangered plant or animal or eliminate
� important examples of the major periods of
California history or prehistory?
2) Does the project have the potential to achieve short-
term environmental goals to the disadvantage of � 0 � �
]ong-term environmental goals?
3) Does the project have impacts that are individually
limited, but cumulatively considerable? � � � �
("Cumulatively considerable" means that the
incremental effects of a project are considerable
when viewed in connection with the effects of past
projects, the effects of other current projects, and the
effects of probable future projects)?
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Would the project:
4) Does the project have environmental effects which
will cause substantial adverse effects on human
beings, either directly or indirectly?
Significant or Less Than
Potentially Significant
Significant With Mitigation
Impact Incorporated
❑ ■
Less-
Than-
SigniCcant
Impact No Impact
❑ ❑
�
Discussion:
Analysis for Q.1 and Q.4. As discussed in preceding sections of this document, the proposed project would
have the potential to degrade the quality of the environment by generating PM�o during ground-disturbing and
other construction activities and by increasing noise levels during construction and operation of the project.
Air quality and noise impacts from construction would potentially cause substantial adverse effects on human
beings, particularly those at sensitive locations such as nearby residences, Franklin Elementary School, and
hospital uses. Also, the proposed pump station would potentially increase ambient noise levels during sensitive
hours, thereby degrading the quality of the environment and causing substantial adverse effects on human
beings, particularly those at adjacent residences.
Construction of the proposed discharge piping would potentially impact San Francisco dusky-footed woodrat
populations, which occur within Crystal Springs Watershed lands. The San Francisco dusky-footed is a species
of special concern to CDFG. Lastly, construction of the proposed suction piping would have a high potential
to impact archaeological resources in the viciniry of Trousdale Drive and El Camino Real.
Because the project site does not transect or occur near a water body, the proposed project would not
substantially reduce the habitat of a fish or wildlife species, cause a fish ar wildlife population to drop below
self-sustaining levels. As a pump station and underground transmission main project within a primarily
urbanized location, the proposed project would not eliminate a plant or animal community.
MITIGATION MEASURES. Mitigation Measure AQ-1, provided in Checklist Item C, Air Quality, and
involving implementation of dust suppression best management practices, would reduce potentially
significant dust emissions to a less-than-significant level. Mitigation Measures NO-1 and NO-2,
identified in Checklist Item K, Noise, and including acoustical shielding design parameters and
monitoring, would ensure that operational noise impacts would be less than significant. Mitigation
Measures NO-3 through NO-5, identified in Checklist Item K, Noise, and involving public
coordination and noise best managements practices, below would reduce construction noise impacts to
less than significant. Mitigation Measures BIO-1 and BIO-2, identified in Checklist Item D, Biology,
and involving surveys and nest removal, and Mitigation Measure BIO-3, identified in Checklist Item
D, Biology, and involving trench inspection, would minimize the project-related effects on the San
Francisco dusky-footed woodrat and reduce impacts to a less-than-significant level.
Analysis for Q.2. The proposed project would not achieve short-term environmental goals to the disadvantage
of long-term environmental goals. The project would enhance long-term environmental goals of providing a
reliable water supply system to replace the existing approximately 50-year-old distribution system in the Hills
�
�
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area of [he City. The project would not increase water demand and would not increase water consumption
rates. Because the project would continue to serve and existing population, no growth-inducement and growth-
associated impacts such as increased traffic, noise, air emissions, and utilities and services demand would
result from the improved infrastructure.
Analysis for Q.3. Construction of the Peninsula Medical Center Replacement Project is ongoing as of the
preparation of this document and is expected to continue for approximately six more years. The Peninsula
Medical Center Replacement Project is located along Trousdale Drive and El Camino Real and involves the
replacement of an existing hospital, medical office buildings, and a blood bank with a new hospital campus on
26 acres. As such, impacts from the proposed project could cumulate with impacts from the Peninsula Medical
Center Replacement Project. Other, foreseeable projects in the vicinity with which impacts from the proposed
project could cumulate include:
• a 20-unit residential condominium at 1875 California Drive. This project would replace an existing
abandoned car wash structure;
• a 10-unit residential condominium at 1509 El Camino Real, through which Mills Creek transects;
• a 45-unit residential condominium at 1840 Ogden Drive. This project would replace an existing single-
story medical office building; and
• a 28-unit residential condominium at 1800 Trousdale Drive. This project would replace an existing
single-story office building.
Construction of the other, foreseeable projects above could occur concurrently with the proposed project
construction. As such, cumulative construction impacts related [o traffic flow, air emissions, and noise could
occur.
The proposed project would require lane closures along Trousdale Drive, with a minimum of two lanes to be
maintained. Construction of the transmission main would occur in phases, and construction of the suction
piping would occur in the vicinity of the other projects along Trousdale Drive and Ogden Drive. Although
construction of other projects would occur outside the Trousdale Drive right-of-way, heavy construction
equipment would access construction sites via Trousdale Drive and could thus contribute to traffic congestion
in the vicinity of the suction piping alignment. Additionally, the Peninsula Medical Center Replacement
Project involves construction vehicle access through Marco Polo Way, along which the proposed suction piping
would connect to the SFPUC Sunset Supply Pipeline and would require a partial lane closure. That project
would also require new site entrances and roadway improvements along Trousdale Drive, which could further
contribu[e [o traffc congestion from the proposed lane closures during construction. Traffic congestion from
lane closures and construction equipment access could adversely affect emergency access, particularly in the
vicinity of the Peninsula Medical Center, which would remain operational during that construction. It should
nonetheless be noted that cumulative impacts associated with the proposed project would be temporary, lasting
the duration of construction of the transmission main portions in the vicinity of other, foreseeable projects.
However, cumulative construction impacts on Trousdale Drive and Marco Polo Way traffic would be
potentially significant, and the proposed project's contribution ro cumulative traffic impacts would be
cumulatively considerable as it would in and of itself reduce roadway capacity.
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Construction dust generation of the proposed project would cumulate with dust generation from concurrent
construction in the vicinity. Conditions of approval of the Peninsula Medical Center Replacement Project
include best management practices to suppress construction emissions; however, other, foreseeable projects
that could occur concurrently with the proposed project are located along Trousdale Drive and nearby streets
and would involve building demolition and other construction activities that could cumulatively generate
substantial localized dust generation. As such, cumulative impacts would be temporary, but significant, and
the proposed project's contribution to construction emissions would be cumulatively considerable due to
excavation and trenching along the approximately 9,960-foot-long alignment.
Construction noise of the proposed project would cumulate with noise from concurrent construction in the
vicinity. The Environmental Impact Report prepared for the Peninsula Medical Center Replacement Project
determined that the 6'/z-year-long construction of the 26-acre site would be a significant and unavoidable
impact.sb Additionally, other, foreseeable projects that could occur concurrently with the proposed project are
located along Trousdale Drive and nearby streets and would involve building demolition and other construction
activities that could cumulatively generate substantial noise. As such, cumulative impacts would be temporary,
but significant, and the proposed project's contribution to construction emissions would be cumulatively
considerable due to noisy pavement breaking and other noisy construction activities.
MITIGATION MEASURES. Implementation of Mitiga'tion Measures TR-1 and TR-2, identified in
Checklist Item O, Traffic, and Mitigation Measure CU-1, below, would reduce the proposed project's
contribution to cumulative traffic impacts to less than cumulatively considerable. Mitigation Measure
TR-1 would require safety features such as signage and public notification of construction activities and
closures, and Mitigation Measure TR-2 would involve coordination with emergency service providers.
Mitigation Measure AQ-1, provided in Checklist Item C, Air Quality, and involving implementation of
dust suppression best management practices, would reduce the proposed project's contribution to
cumulative dust emissions to less than cumulatively considerable. Mitigation Measures NO-1 and NO-
2, identified in Checklist Item K, Noise, and including acoustical shielding design parameters and
monitoring, and Mitigation Measures NO-3 through NO-5, the involving public coordination and noise
best managements practices, would reduce the proposed project's contribution to cumulative
construction noise to less than cumulatively considerable.
CU-1. Coordinate construction activities. To the extent practicable, the City shall schedule
construction of the transmission main so that minimal overlap with other construction along
Trousdale Drive and Marco Polo Way would occur. In the event that transmission
construction scheduling would overlap with other construction along Trousdale Drive and
Marco Polo Way, the City shall coordinate proposed construction activities with other
construction activities so that construction equipment access would be adequately
mainiained for all construction activities and so that minimal traffic congestion would
occur.
56 EIP Associates, Peninsula Medical Center Replacement Project Final Environmenta! Impact Repon, prepared for the
City of Burlingame, September 17, 2004.
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3. Conclusion
The proposed project would have potential}y significant or significant impacts related to degradation of the
environment, adverse impacts to human beings, and reduction of sensitive specifies populations. The proposed
project would also have cumulatively considerable impacts related to construction traffic, air quality, and noise
impacts. Mitigation measures identified would adequately reduce these impacts to less-than-significant levels.
V. LIST OF AUTHORS AND PARTICIPANTS
Lead Agency
Philip Monaghan, Senior Civil Engineer, Public Works Department, City of Burlingame
Project Engineers
Matt Zucca, P.E., Erler & Kalinowski, Inc., contract engineer for the City of Burlingame
Jeff Tarantino, P.E., Erler & Kalinowski, ]nc., contract engineer for the City of Burlingame
Tom Yeager, P.E., Project Engineer, Kennedy/Jenks Consultants, design and construction engineer for a
portion of the discharge piping alignment of the proposed project
Consultants
Rick Hanson, Technical Director, EIP Associates
John Moynier, Technical Director, EIP Associates
Trixie Martelino, Project Manager, EIP Associates
Demian Ebert, Senior Scientist, EIP Associates
George Burwasser, Senior Scientist, EIP Associates
Natalie Irwin, Environmental Professional, EIP Associates
Fan Lau, Environmental Professional, EIP Associates
Zetta Quick, Environmental Professional, EIP Associates
Sam Bacchini, Associate Scientist, EIP Associates
Anne Martin, Intern, EIP Associates
William Self, Principal, William Self Associates, Inc.
Aimee Arrigoni, M.A., Archaeologist, William Self Associates, Inc.
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