Sacramento Citizens Concerned About Railyards v. City of Sac. CA3 ( 2015 )


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  • Filed 10/7/15 Sacramento Citizens Concerned About Railyards v. City of Sac. CA3
    NOT TO BE PUBLISHED
    California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for
    publication or ordered published, except as specified by rule 8.1115(b). This opinion has not been certified for publication
    or ordered published for purposes of rule 8.1115.
    IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA
    THIRD APPELLATE DISTRICT
    (Sacramento)
    ----
    SACRAMENTO CITIZENS CONCERNED ABOUT                                                            C065220
    THE RAILYARDS et al.,
    (Super. Ct. No.
    Plaintiffs and Appellants,                                  34200800000504CUWMGDS)
    v.
    CITY OF SACRAMENTO et al.,
    Defendants and Respondents;
    IA SACRAMENTO HOLDINGS, L.L.C., et al.,
    Real Parties in Interest and Respondents.
    The present appeal involves litigation over the City of Sacramento’s (City) plan to
    develop a large parcel of land once occupied by maintenance facilities of the Southern
    Pacific and Union Pacific Railroads. The parcel, located near the city’s downtown, major
    freeways, and the confluence of the American and Sacramento Rivers, has significant
    historic and archaeological resources but, during the course of its earlier use as a railroad
    1
    facility, suffered major releases of toxic substances, resulting in its listing as a state
    “Superfund” site. (See Health & Saf. Code, § 25300 et seq.) Remediation efforts have
    been underway since 1984, supervised by the state Department of Toxic Substances
    Control (DTSC). The remediation activities are the subject of separate environmental
    review.
    With the cessation of railroad activity and the progress of remediation efforts, the
    city formulated plans for development of the site. The plan, ultimately adopted as the
    “Sacramento Railyards Specific Plan” (Specific Plan), contemplates development of
    mixed uses on the 244-acre site over a 15- to 20-year period (the Project). In addition to
    the strictures of the Specific Plan, development is further constrained by the “Sacramento
    Railyards Design Guidelines” (Design Guidelines) and two ordinances: Sacramento
    Ordinance No. 2007-101, the Sacramento Railyards Special Planning District Ordinance
    (SPD Ordinance), and Sacramento Ordinance No. 2007-103, the Central Shops Historic
    District Ordinance.
    According to respondents, the protracted development time period, with the
    prospect of changing market conditions, suggested a need for flexibility in determining
    the precise mix of land uses and in making specific development decisions for specific
    parcels. For that reason, the City prepared a “tiered” or “program” environmental impact
    report (EIR) pursuant to the California Environmental Quality Act (CEQA; Pub.
    Resources Code, § 21000 et seq.) and its implementing regulations (CEQA Guidelines;
    Cal. Code Regs., tit. 14, § 15000 et seq.). (CEQA Guidelines, § 15168.) The EIR set
    forth a detailed environmental analysis of the Project’s environmental effects where the
    type and timing of development had been decided. However, where future development
    options remained abstract or speculative, the EIR provided a programmatic level of
    analysis which recognized that additional environmental review would be required as
    specific development options were chosen in light of market conditions and other factors.
    2
    Consistent with rules governing program EIR’s, if a later Project-related activity
    would have effects not previously examined in the EIR, a new initial study would be
    required, leading to either another EIR or a negative declaration. Moreover, all
    development in the area covered by the Specific Plan requires a subsequent discretionary
    urban development permit pursuant to the SPD Ordinance. Each development
    application will be subject to evaluation as to whether additional environmental review is
    required under CEQA.
    In a petition for a writ of mandate against defendant City, Sacramento Citizens
    Concerned About the Railyards (Citizens) challenged the adequacy of CEQA review of
    the City’s adoption of the Specific Plan and related actions. The trial court denied the
    petition.
    On appeal, Citizens asserts five main inadequacies in the City’s EIR. According
    to Citizens, the EIR does not adequately describe historic or archaeological resources;
    fails to provide adequate information regarding the Project’s water quality impacts;
    changes the Project description; improperly segments review of the cistern, “an
    underground basin designed to retain the first flush drainage runoff from the Railyards
    site and to attenuate peak flows from storm events”; and inadequately analyzes traffic
    impacts and air quality impacts. We shall affirm the judgment.
    FACTUAL AND PROCEDURAL BACKGROUND
    Railyards Specific Plan
    In the heart of downtown Sacramento sit 244 acres ripe for development. The site
    is north of the central business district, east of the Sacramento River and Interstate 5,
    south of North B Street and the Richards Boulevard area, and west of the Alkali Flat
    neighborhood.
    In 1862, before construction of the Transcontinental Railroad began, the
    Sacramento Board of Supervisors granted part of the site to the Central Pacific Railroad.
    3
    The railroad used the land to construct and repair train cars, engines, and other
    equipment. The repair shops in the railyards were used until 1995.
    In 1994 the ROMA Design Group prepared, and the City adopted, an initial plan
    for the railyards (ROMA Plan). The ROMA Plan preserved the Southern Pacific Depot
    and the central shops area on the site. It included 2,800 residential units, 9.6 million
    square feet of office space, and 500,000 square feet of retail and entertainment space.
    In 2005 the developer filed an application with the City to develop a master plan
    for the railyards. The mixed-use plan included housing and a transportation facility.
    The following year, the City issued a notice of preparation of the draft EIR (DEIR)
    for the Specific Plan. The plan proposed up to 11,085 mixed use, high density residential
    units; up to 2,986,500 square feet of office space; up to 1,370,000 square feet of retail; up
    to 1,000 hotel rooms; and up to 421,700 square feet for entertainment and cultural uses.
    The Specific Plan established five land use designations: (1) residential/
    commercial mixed use, (2) office/residential mixed use, (3) residential mixed use,
    (4) transportation use, and (5) open space. To provide flexibility, the Specific Plan sets
    forth the maximum densities for each use allowed within the first three mixed-use
    designations. The subsequent DEIR included an “EIR Analysis Scenario” assuming a
    level and mix of uses similar to the maximum development levels in the Specific Plan, on
    which the DEIR impact analyses were based.
    In 2007 the City released the DEIR for the Specific Plan. The DEIR also served
    as program EIR. According to the DEIR, most of the impacts caused by the Project were
    less than significant or could be mitigated to a less than significant level. However, the
    generation of the ozone precursors NOx and ROG, temporary production of loud noise
    during construction, permanent exposure of sensitive receptors to traffic and rail noise
    levels, and traffic impacts could not be mitigated to a less than significant level. In
    addition, traffic impacts were severe, slowing traffic flow and congesting freeways.
    4
    Extensive commentary by various agencies and the public followed. The
    California Regional Water Quality Control Board, Central Valley Region (Water Quality)
    inquired as to the cleanup levels needed in groundwater and the vadose zone to protect
    inhabitants of buildings on the site. Water Quality also questioned the potential adverse
    impact on surface water from graded contaminated materials in storm water runoff.
    Caltrans stated the Project would cause regional and interregional traffic impacts,
    including impacts to Interstate 5 and local roadways. Caltrans, which views the
    completion of the region’s light rail lines as essential to a complete regional
    transportation system, was concerned that the Project’s anticipated generation of 140,000
    to 149,000 vehicle trips per day would far exceed the capacity of a fully built out light
    rail system. Caltrans noted the Project should provide fair share funding contributions to
    improve both the freeways and light rail.
    The Sacramento Metropolitan Air Quality Management District (Air Quality)
    faulted the DEIR for suggesting the threshold of significance for toxic air contaminant
    (TAC)-induced cancer cases was 446 per million. Air Quality noted the district protocol
    does not provide an acceptable cancer risk level or regulatory threshold.
    Approval of Specific Plan and Certification of EIR
    The City scheduled and publicized a 45-day comment period on the DEIR.
    During this period, the City held public hearings on the Specific Plan and the DEIR.
    On September 11, 2007, the Sacramento City Design Commission, Preservation
    Commission, Planning Commission, and Development Oversight Commission held a
    joint meeting on the Specific Plan. A representative of the Sacramento Metropolitan
    Chamber of Commerce stated the Project had to be approved by the end of the year to be
    eligible for Proposition 1C housing bonds that were targeted for transit-friendly housing
    projects.
    5
    At a subsequent Sacramento City Council (City Council) public hearing on
    December 4, 2007, the City Council learned that the residential phases of the Specific
    Plan were not economically feasible.
    On December 11, 2007, the City Council held a final public hearing on the
    Specific Plan. The council adopted a resolution certifying the EIR (consisting of the
    DEIR and the final EIR (FEIR)), passed an ordinance approving the “Development
    Agreement for Sacramento Railyards Project” (Development Agreement), adopted the
    Specific Plan, approved the Design Guidelines, and entered into a memorandum of
    understanding with DTSC and S. Thomas Enterprises for remediation of toxic substances
    at the railyards, along with other entitlements. The Redevelopment Agency of the City of
    Sacramento adopted the Project EIR and its mitigation monitoring program as the
    responsible agency and approved the “Sacramento Railyards Owner Participation
    Agreement Business Terms,” which required the agency to provide an owner
    participation agreement containing specific provisions.
    Writ of Mandate
    Citizens filed a petition for a writ of mandate. Following oral argument, the court
    denied the petition. Citizens filed a timely notice of appeal.
    DISCUSSION
    Standard of Review
    The Legislature intended CEQA to be interpreted to afford the fullest possible
    protection to the environment within the reasonable scope of that statute. The EIR
    provides the means of achieving this goal and may provide an environmental alarm bell,
    alerting the public and their governmental representatives to environmental changes
    before they become irreversible. In addition, the EIR’s purpose is to provide the public
    with evidence that the responsible agency has analyzed and considered the ecological
    impacts of its action. As a document of accountability, the EIR allows the public to know
    the basis on which public officials approve or reject environmentally significant action.
    6
    Armed with this knowledge, the public can respond to official acts that impact the
    environment. (Laurel Heights Improvement Assn. v. Regents of University of California
    (1988) 
    47 Cal. 3d 376
    , 390-392 (Laurel Heights).)
    When considering a challenge to the legal adequacy of an EIR, we presume an
    agency’s decision to certify the EIR is correct, placing the burden of establishing
    otherwise on the party challenging the EIR. (Sierra Club v. City of Orange (2008)
    
    163 Cal. App. 4th 523
    , 530 (Sierra Club).) We must determine whether the agency abused
    its discretion by not proceeding in a manner required by law or making a decision not
    supported by substantial evidence. We do not second-guess the correctness of the EIR’s
    environmental conclusions, but we consider only its sufficiency as an informational
    document. (Laurel 
    Heights, supra
    , 47 Cal.3d at p. 392.) We will not set aside an
    agency’s approval of an EIR on the ground that a different conclusion would have been
    more reasonable or equally compelling. (Citizens of Goleta Valley v. Board of
    Supervisors (1990) 
    52 Cal. 3d 553
    , 564.)
    We review the agency’s decision, not that of the trial court. (In re Bay-Delta etc.
    (2008) 
    43 Cal. 4th 1143
    , 1162.) When considering whether an agency followed the
    correct procedures, we conduct a de novo review. However, when reviewing an agency’s
    substantive factual conclusions, we afford the agency greater deference and employ the
    substantial evidence test. In reviewing the record for substantial evidence we do not
    reweigh the evidence. Instead, we focus on the adequacy, completeness, and good faith
    effort at full disclosure. (Sierra 
    Club, supra
    , 163 Cal.App.4th at p. 531; Association of
    Irritated Residents v. County of Madera (2003) 
    107 Cal. App. 4th 1383
    , 1390.)
    Description of Historic and Archaeological Resources
    “An EIR must include a description of the physical environmental conditions in
    the vicinity of the project, as they exist at the time the notice of preparation is
    published . . . . The description of the environmental setting shall be no longer than is
    necessary to an understanding of the significant effects of the proposed project and its
    7
    alternatives. [¶] . . . [¶] . . . Special emphasis should be placed on environmental
    resources that are rare or unique to that region and would be affected by the project.”
    (CEQA Guidelines, § 15125, subds. (a), (c).)
    Citizens challenges the EIR’s description of historic and archaeological resources.
    According to Citizens, the EIR fails to identify the route of the Transcontinental Railroad,
    provides inadequate information from which to establish the boundaries of the Central
    Shops Historic District, and fails to identify archaeological resources and respond to
    agency comments.
    Transcontinental Railroad
    The DEIR states: “The route over the Sierra Nevada originally began by
    traversing the Railyards, passing in an arc to the north of where the roundhouse once
    stood and where the Car Machine Shop is located. . . . [¶] . . . The records search
    conducted for the EIR identified several recorded points of the route of the First
    Transcontinental Railroad located east of the Railyards . . . , but no points in the
    Railyards were previously recorded.” In addition, “Camille Lane is proposed to be
    constructed in an arc-shaped footprint that generally follows the path of the First
    Transcontinental Railroad route as it passed through the Railyards property in
    Sacramento.”
    Citizens argues this description of the route in general terms fails to satisfy CEQA.
    According to Citizens, the EIR states that the location of the First Transcontinental
    Railroad route is known but fails to identify it. Instead, the EIR leaves the location to be
    determined at a later date as a mitigation measure. Citizens claims the deferral of
    identification of the route allows the route to be paved over and lost in the development
    process. Since the railroad’s location is necessary for informed decisionmaking as to
    whether historic resources would be protected, this dearth of information violates CEQA.
    We disagree.
    8
    A description of a project’s environmental setting need not be exhaustive. (Cadiz
    Land Co. v. Rail Cycle (2000) 
    83 Cal. App. 4th 74
    , 88-91.) Here, the DEIR provides an
    adequate description of the path of the First Transcontinental Railroad and recognizes the
    Project “could cause a substantial adverse change in the significance of the remnant
    portion of . . . the First Transcontinental Railroad [route].” The FEIR noted the City has
    adopted measures that require preservation in place of any remaining features of the First
    Transcontinental Railroad.
    The route has been identified adequately to allow the impact analysis required by
    CEQA. In addition, the mitigation measures adopted protect any remaining features of
    the Transcontinental Railroad route.
    Central Shops Historic District
    Citizens also objects to the FEIR’s description of the Central Shops Historic
    District. Specifically, Citizens claims the FEIR does not include an adequate discussion
    of the district’s features, fails to explain why the boundaries were drawn so tightly around
    the buildings, and fails to identify archaeological resources. We disagree.
    Citizens’s objection to the discussion of character-defining features springs from a
    comment by the Department of Parks and Recreation, Office of Historic Preservation that
    the EIR should include a clear description of all buildings, structures, and other “district
    character defining features.”
    The DEIR designated the boundaries of the district, described the resources in the
    district, considered potential impacts, and proposed mitigation measures. The FEIR,
    using criteria established by a National Register of Historic Places bulletin (Nat. Park
    Service, Div. of Cultural Resources, Nat. Register Bull.: How to Complete the Nat.
    Register Registration Form (1997) pp. 56-57, referred to in the FEIR as the NPS
    Boundary Guidelines), outlined the factors for determining district boundaries.
    Following public comment, a boundary revision expanding the district was incorporated
    into the Specific Plan. More public comment ensued and the City considered the
    9
    objections. The City acknowledged lingering disagreement over the district’s boundaries
    but urged that the district boundaries be approved as proposed.
    According to Citizens, the FEIR inadequately discussed the character-defining
    features of the district.
    Noting that the Office of Historic Preservation commented that there was no
    documented justification for the drawing of the district’s boundaries, Citizens contends
    the City’s response to this comment was inadequate.
    The City set forth the criteria that it considered in drawing the district boundaries.
    The City utilized the NPS Boundary Guidelines for historic districts, which provide that
    the boundaries should “encompass the single area of land containing the significant
    concentration of buildings, sites, structures, or objects making up the district. The
    district’s significance and historic integrity should help determine the boundaries.” In
    addition, the NPS Boundary Guidelines suggest consideration of the following factors:
    visual barriers, visual changes in the character of the area, boundaries at a specific time in
    history, and clearly differentiated patterns of historical development.
    Citizens also claims the FEIR failed to adequately respond to the Office of
    Historic Preservation’s comments that the district’s boundaries were too narrowly drawn.
    In response, the FEIR stated the district’s boundaries were consistent with the NPS
    Boundary Guidelines since the “Central Shops Historic District is a geographically
    definable area which possesses a significant concentration, linkage, and continuity of
    contributing resources that are united by past events, aesthetic features, and physical
    development . . . .”
    We disagree with Citizen’s characterizaton of the City’s response as “conclusory.”
    The FEIR addresses the Office of Historic Preservation’s concerns sufficiently, revealing
    the rationale behind the boundaries. The City considered and provided a thoughtful
    response to public comments. Nothing more is required.
    10
    Archaeological Resources
    Citizens contends the FEIR did not properly respond to the comments of the
    Office of Historic Preservation concerning archaeological resources and failed to identify
    such resources. According to Citizens, the archaeological deposits in the Specific Plan
    area, which include a wealth of information, will be impacted and potentially destroyed.
    The Office of Historic Preservation stated the site’s archaeological deposits “have
    the potential to provide unique and significant information on prehistoric through early
    historic Native American cultures, the early Gold Rush period, the development of the
    Transcontinental Railroad, the interrelationship of different ethnic communities in early
    Sacramento, and the development of one of the largest industrial complexes on the West
    Coast.” The office requested that identification and evaluation of archaeological deposits
    take place prior to construction.
    The DEIR described the existing setting and identified archaeologically sensitive
    areas and the types of resources that might be found in the areas. The DEIR also
    identified measures to mitigate potential impacts to archaeological resources. However,
    the DEIR did not specifically identify archaeological sites because the area is covered
    with buildings and fill. Given the physical constraints, predictions as to the location of
    archaeological resources have been made through research into the archival record and
    previous experience in identifying other archaeologically sensitive areas.
    In response to the Office of Historic Preservation’s concerns, the FEIR provided
    more information. In response to queries concerning mitigation measures, the City
    rewrote one mitigation measure, explained the specifics of others, and provided a lengthy
    description of the identification of historic resources.
    The FEIR also set forth a mitigation measure applicable to the entire Project. A
    monitoring and unanticipated discovery plan is required for each phase of the Project.
    The plan will be prepared by a qualified archaeologist and must be approved by the
    City’s preservation director prior to any earth-moving activities.
    11
    Citizens objects to the adequacy of the mitigation measure, arguing the FEIR fails
    to provide information on the timing of excavation strategy, techniques to be utilized, or
    preconstruction identification of archaeological sites. During oral argument the trial
    court discussed Citizens’s objections. The court noted: “There is no law, no case law
    even in a program EIR situation, and even in a situation when the initial evidence is very
    strong that there’s multiple archeological [sic] sites of one type or another, variety of
    historical buildings that a thorough detailed specific assessment and identification of all
    of the historical archeological [sic] resources be done at the outset with the identification
    of specific mitigation measures as opposed to requiring it in a staged fashion consistent
    with the kind of mitigation measures suggested in the EIR.” Both at oral argument before
    the trial court and on appeal, Citizens concedes there is no authority to support its
    argument concerning archaeological resources. Nonetheless, Citizens contends we
    should construe CEQA to require an EIR to identify the archaeological and historic
    resources prior to construction. However, CEQA imposes no such stringent requirement.
    CEQA only requires an agency to respond to comments questioning its environmental
    analysis to reflect a good faith and reasoned analysis. (CEQA Guidelines, §§ 15088,
    subd. (c), 15204.)
    Water Quality Impacts
    Citizens argues the FEIR failed to provide adequate information about water
    quality impacts caused by the Specific Plan; it did not adequately describe the soil and
    groundwater contamination levels on the site, discuss the necessary cleanup levels,
    analyze the toxic impact of storm water runoff from the site, and respond to proposed
    reasonable mitigation measures and concerns expressed by Water Quality.
    Under CEQA, an agency must respond to queries regarding significant
    environmental issues with good faith, reasoned responses. (CEQA Guidelines, §§ 15088,
    subd. (c), 15204.) The EIR addressed Water Quality’s concerns regarding “Hazards and
    12
    Hazardous Substances” and “Hydrology and Water Quality” in detail. Citizens’s primary
    focus appears to be with the adequacy of the City’s responses.
    Soil and Groundwater Contamination
    Volatile Organic Compounds
    At the outset, Citizens faults the FEIR’s response to Water Quality’s comment that
    “An evaluation also needs to be made for the potential for vapor intrusion from VOC
    [volatile organic compound] pollution in the groundwater in the [Sacramento Station]
    area. It is likely that the vapor intrusion pathway was not evaluated [in] 1994 to the
    standards that are applied today.”
    The DEIR stated that remediation in the Sacramento Station area had been mostly
    completed and that a deed restriction was recorded requiring full remediation of the area
    prior to redevelopment activities. According to the DEIR, contamination by VOC’s was
    not widespread and occurred only in a few limited areas. In addition, the DEIR listed
    remediation methods for potential VOC impacts. (AR 1605)
    The FEIR, in addressing Water Quality’s concerns, explained that mitigation
    measure No. 6.5-3(e) was revised to ensure that compliance with building design
    requirements will prevent “the intrusion of subsurface vapors into buildings and enclosed
    spaces” and “would apply to the existing Sacramento Station and Central Shops
    buildings.” This approach, which ties mitigation measures to future building design
    requirements, is compliant with CEQA. (See Laurel 
    Heights, supra
    , 47 Cal.3d at p. 418.)
    Citizens argues these responses are not adequate, since VOC’s may affect ambient
    air as well as buildings. However, CEQA requires a good faith, reasoned response to
    significant environmental issues, not an exhaustive analysis of each and every potential
    issue. (CEQA Guidelines, §§ 15088, subd. (c), 15204.) The responses provided satisfy
    CEQA.
    Water Quality also commented that the EIR’s mitigation measures should consider
    potential exposure to contaminated soils and inhalation of VOC’s from contaminated soil
    13
    and groundwater in ambient and indoor air. Citizens argues the FEIR failed to
    adequately respond to the risk of exposure in ambient air.
    The FEIR discussed the risk to construction workers during earth-disturbing
    construction activities. During soil remediation activities air is monitored under an air
    monitoring plan, asbestos contingency plan, and a health and safety plan. These plans
    provide guidelines for monitoring and controlling potential exposure to airborne
    emissions of VOC’s and airborne dust containing metals. Monitoring stations are located
    throughout the Specific Plan area.
    In addition, the FEIR stated no development may take place until a particular
    development site has been cleaned to DTSC target cleanup level standards. On-site air
    quality monitoring is a “component of the construction worker health and safety plan
    required under Mitigation Measure 6.5-1(b) and (c).”
    Mitigation measure No. 6.5-3(e) requires buildings to be designed according to
    code specifications to prevent the intrusion of subsurface vapors into buildings and
    enclosed spaces. Before the City issues a grading permit or occupancy permit, the
    applicant must demonstrate proper design features to the City’s satisfaction.
    Citizens contends the FEIR’s response is inadequate, in part because the FEIR
    does not cross-reference its response to Water Quality’s comment: “Therefore, the public
    would have no means of learning where to look in the FEIR for the answer to Comment
    6.9. CEQA does not require the public to search the FEIR to find an answer to a
    comment. Failing to identify the response to a comment violates the public participation
    policies of CEQA.”
    The public should not have to sift through mountains of material to ferret out the
    basic assumptions being used in environmental analysis. However, the responses to
    Water Quality’s comments are clearly indicated—this is not a case of looking for a
    needle in a haystack or burying pertinent information in obscure minutiae.
    14
    Citizens also contends the FEIR’s response is directed at mitigating risks to only
    construction workers, leaving the residents vulnerable to airborne contaminants.
    However, the air monitoring mitigation measures are designed to protect occupants as
    well as construction workers.
    Runoff Impacts
    Citizens says the EIR’s response on storm water runoff is inadequate because it
    fails to provide information about the impact of runoff from contaminated soil on the site.
    Water Quality opined that if construction was not limited to the dry season, impacts
    should be mitigated by containing the runoff and either discharging it to a storm sewer
    system or physically treating the runoff prior to land or surface water discharge.
    The FEIR states contaminants at the site are managed by DTSC in consultation
    with Water Quality as part of a separate remediation project. According to the FEIR, the
    DEIR “does not need to further evaluate how existing contaminants in stormwater runoff
    will be managed.” Storm water runoff from graded portions of the site will be controlled
    in accordance with the City’s “Storm Water Quality Improvement Plan.” Construction
    affecting more than one acre falls under the National Pollutant Discharge Elimination
    System (NPDES) general construction permit. Collectively, these systems and entities
    address contamination of surface water by storm water runoff.
    Water Quality also proposed mitigation to combat the potential for contaminated
    surface water to be released into groundwater. Water Quality proposed two measures:
    Project design should minimize the amount of pervious surfaces; and runoff should be
    retained in a lined basin for gradual discharge into the storm sewer system to delay surge
    of peak flows. Citizens contends the EIR failed utterly to adequately respond to these
    comments.
    Mitigation measure No. 6.6-1 in the DEIR requires the landowner to minimize the
    migration of contaminated runoff into receiving water bodies in compliance with NPDES
    requirements, the City’s Storm Water Quality Improvement Plan, and the implementation
    15
    of an erosion and sediment control plan. The FEIR states monitoring of groundwater
    pollutant levels will be reported by the landowners to DTSC and Water Quality. If
    necessary, the City will take corrective action and notify DTSC.
    Citizens also claims the FEIR failed to respond to Water Quality’s comment that it
    should include information about the cleanup levels of VOC’s in groundwater and the
    vadose zone. However, the FEIR discussed groundwater quality and analyzed site
    investigation and cleanup. The FEIR determined these concerns fell within the scope of
    DTSC’s analysis of the separate remediation project and the information requested was
    not a significant environmental issue.
    We find the FEIR’s responses to Water Quality’s concerns both reasoned and
    made in good faith.
    Accuracy of the Project Description
    Citizens argues the City impermissibly changed the Project description in the
    transition from the DEIR to the FEIR and Development Agreement. According to
    Citizens, the FEIR and Development Agreement allow more retail development than the
    DEIR, and the FEIR eliminated all Project phasing that had been included in the DEIR.
    These changes render the Project description “unstable.”
    An accurate project description is necessary to determine the scope of
    environmental review. Only an accurate view of the scope of a project can provide
    decision makers and the public with the information necessary to balance the project’s
    benefits against its environmental costs and to evaluate the efficacy of mitigation
    measures. (County of Inyo v. City of Los Angeles (1977) 
    71 Cal. App. 3d 185
    , 199.)
    Amount of Retail Development
    Citizens argues that the amount of retail space approved in the Development
    Agreement exceeded that outlined in the DEIR. The trial court rejected this argument,
    finding the “type and maximum amounts of land that would be developed in the [Specific
    16
    Plan] area do not shift even though, to respond to market demands, their extent and order
    of development is flexible.”
    Citizens argues the Development Agreement the City approved allows the
    landowner to develop a total of 1,870,190 square feet of retail space, an amount greater
    than the approximately 1.4 million square feet of retail space described in the public
    review draft of the Specific Plan, released after the DEIR comment period closed. Since
    the Development Agreement increased the amount of retail space, the DEIR did not
    analyze the resulting increased traffic and other environmental impacts.
    The Development Agreement grants the applicant a vested right to develop the
    property in a manner substantially consistent with the “Development Plan” and “with the
    Plans and Project Entitlements.” The Development Agreement describes the
    Development Plan as “The Landowner’s plan for Development of the Property for the
    Project pursuant to the Specific Plan and based on the EIR Analysis Scenario as modified
    in terms of the schedule of development in the Initial Phase Development Plan by the
    Phase 1 Development Plan.”
    The DEIR states that the Specific Plan’s five land use designations allow for
    “some combination of typical land uses, such as office, commercial, residential, and open
    space. . . .
    “In order to provide as much flexibility as possible, the Specific Plan sets
    maximum densities for each use that would be allowed within the three mixed use land
    use designations . . . . The Specific Plan does not, however, proscribe any particular mix
    of uses within each category or block. Consequently, allowable development for each
    use that is developed in the future will depend, in part, on the amount of development
    capacity that is taken up by other uses.”
    The uses allowed in the mixed land use designations of the Specific Plan are
    permitted to vary in amount, subject to specified maximum densities and intensities by
    parcel and specified maximum amounts within the entire Specific Plan area. The pace of
    17
    development within these maximum densities may respond to market demands. This
    flexibility to respond to market forces does not change the mixed-use character of the
    Specific Plan development. No single category of land use can expand beyond the
    specified maximums to the point where other land uses are excluded. In this respect we
    find the Project description accurate.
    Phasing Program
    Citizens argues the Project description shifted or is inconsistent as to whether the
    Specific Plan includes phasing. According to Citizens, the DEIR contained a four-phase
    development schedule; however, the FEIR abandoned the phased approach.
    The FEIR, reflecting the Specific Plan’s flexible approach to land use, states the
    Project does not include any “per se” or “specific” phasing program. The FEIR states:
    “Notwithstanding the lack of a project phasing program, because the EIR, especially the
    traffic and related analyses, requires the use of specific horizon years for analytical
    purposes, the Draft EIR presented a set of assumptions about an initial phase of the
    project that were used in the analysis, as discussed in Chapter 3 of the Draft EIR.”
    The trial court found the Specific Plan Development Agreement sets forth phasing
    plans for the development of mixed uses, roads, parking, public facilities, and
    infrastructure. The fact that the phasing plan might become outdated or be discarded in
    response to market conditions did not change the Specific Plan’s Project description.
    We agree. The phasing plans are based on current market conditions and are
    subject to change based on changing market conditions. Such flexibility does not change
    the Specific Plan’s Project description, which sets forth specified types and maximum
    amounts of land use.
    The Cistern
    Citizens labels the FEIR’s analysis of the cistern, a component of the Specific
    Plan’s storm water management system, improper segmentation in violation of CEQA.
    According to Citizens, the City segmented the FEIR by failing to specify when the cistern
    18
    would be built and failing to provide design details or an analysis of impacts stemming
    from its construction.
    To comply with CEQA, an agency must evaluate the whole of any project that
    may result in either direct or reasonably foreseeable impacts on the environment. (CEQA
    Guidelines, § 15378, subd. (a).) An agency may not segment parts of the project by
    splitting it into pieces. Such segmentation can minimize consideration of a project’s
    environmental consequences in violation of CEQA. (Burbank-Glendale-Pasadena
    Airport Authority v. Hensler (1991) 
    233 Cal. App. 3d 577
    , 592.)
    The cistern forms a part of the Specific Plan’s storm water facilities. Ultimately,
    the Project foresees replacing the City’s existing drain system, which currently discharges
    sewer and storm water into the sewer system, with a new gravity system of pipelines and
    inlets that will drain into an underground storage facility, the cistern.
    The DEIR provides a description of the cistern: “The cistern would serve as a
    means of providing additional detention capacity and as a stormwater quality-
    management facility. The cistern would be able to store approximately 27 acre-feet,
    which would be sufficient to capture the ‘first flush’ of a storm event for water quality
    purposes. . . . The cistern would have two compartments: the first would capture the
    most polluted stormwater runoff from the first flush. Up to one-third of the entire water
    quality volume (approximately five acre-feet) would be pumped at about five cubic feet
    per second rate into the [existing sewer-storm water system]. The residual two-thirds of
    the water quality volume (approximately 10 acre-feet) would discharge to the Sacramento
    River over the course of 24 to 48 hours. . . . Drainage flows that exceed the first-flush
    storage capacity would be collected in the second chamber and then pumped to the
    Sacramento River.”
    The FEIR, responding to comments, provided a further description of the cistern.
    The Sacramento Department of Utilities reviewed and approved a technical memorandum
    analyzing the Project’s storm drain system. Although the date of the cistern’s
    19
    construction is not established, the FEIR requires that prior to construction “the proposed
    project would be required to submit drainage and wastewater studies prior to the
    submittal of improvement plans to demonstrate the drainage runoff and sewer generation
    amounts that will contribute towards the maximum peak flow . . . .”
    Citizens faults the FEIR’s description of the cistern for failing to provide “the
    dimensions of the cistern, design details, and maintenance requirements for the Cistern.”
    However, an EIR does not have to provide working drawings or blueprint-level detail of
    a project’s components. Instead, the EIR must provide sufficient detail to understand the
    project’s possible environmental impacts. (Dry Creek Citizens Coalition v. County of
    Tulare (1999) 
    70 Cal. App. 4th 20
    , 27-28.)
    In the alternative, Citizens contends the FEIR fails to analyze the environmental
    impacts of constructing the cistern. However, in conjunction with construction of the
    cistern, the City adopted mitigation measure Nos. 6.11-1 and 6.11-2. Measure No. 6.11-1
    states that prior to completion of the cistern, the City shall limit development of the
    Project so that the combined wastewater and storm water flows do not exceed the
    Project’s peak flow sewage generation rate of 9.43 million gallons per day. Measure
    No. 6.11-2 provides that the City shall limit development of the Project so that the
    combined wastewater and storm water flows do not exceed a flow rate of five cubic feet
    per second until the cistern and outfall for storm water flows are constructed, and/or
    planned sewer-storm water system improvements for wastewater flows are implemented.
    Mitigation measures to mitigate particulate emissions from the construction of the
    cistern are provided. These measures include watering all soil to maintain moistness;
    maintaining two feet of freeboard space on haul trucks; expeditious removal of mud or
    dirt from adjacent public streets at the end of each workday; installation of wheel washers
    for all exiting trucks, or washing off of all trucks and equipment leaving the site;
    suspension of excavation and grading activity when winds exceed 20 miles per hour;
    20
    periodic watering of exposed surfaces, including haul roads; and limiting vehicle speeds
    on unpaved roads to 15 miles per hour.
    Traffic Impacts
    Citizens mounts a multipart attack on the adequacy of the FEIR’s analysis of
    traffic impacts. Specifically, Citizens argues (1) the scope of the traffic study is too
    limited, (2) the EIR is required to include a queuing analysis for downtown intersections,
    (3) the City failed to consider mitigation measures for 44 intersections, (4) the FEIR does
    not include mitigation measures for a freeway ramp, and (5) fee-based mitigation of an
    interchange does not comply with CEQA.
    Traffic Study Scope
    Preliminarily, Citizens points to expert opinion in opposition to the Specific Plan
    that the FEIR should analyze the intersection on the west side of the I Street Bridge in
    West Sacramento. According to Citizens, traffic studies are generally required to analyze
    all intersections that may attract 100 or more peak-hour trips based on their projected
    impact. Plaintiff’s traffic engineer stated the Specific Plan would generate more than
    100 peak-hour trips through an intersection just west of the I Street Bridge.
    The DEIR states the traffic study area was defined in collaboration with the City’s
    and Caltrans’s staff based on anticipated volume and distributional patterns of traffic and
    known locations of operational difficulty. The two entities agreed upon a geographic
    region to be studied that includes 64 intersections, 32 street segments, 11 freeway
    segments, 11 freeway merges/diverges/weaves, and six freeway ramps.1
    1 Citizens notes Caltrans requested analysis of traffic impacts for the entire freeway ring
    surrounding the Sacramento central area. However, as the trial court noted, Citizens
    failed to present any evidence in support of its request for additional traffic studies to
    indicate that evaluation of additional locations would generate additional significant
    information about traffic impacts or was otherwise necessary to a valid traffic study. In
    addition, Caltrans, on whose comments Citizens relies, never pursued its general request
    21
    As for Citizens’s claim that traffic studies typically are required to analyze all
    intersections that may result in 100 additional peak-hour trips, the FEIR explained that
    the City’s traffic engineers concluded the Specific Plan would result in no significant
    impacts to “intersections west of intersection #48” (the intersection just west of the
    I Street Bridge). This conclusion was based on the result of an assessment incorporating
    traffic demand models developed by the Sacramento Area Council of Governments
    (SACOG) and standard trip generation procedures, adjusted to reflect dense development
    in an environment much like downtown Sacramento.
    In addition, the FEIR pointed out traffic studies are not required to analyze all
    intersections that may result in 100 peak-hour trips. The City’s standard regulation uses
    the 100 peak-hour trip threshold as an overall measure to determine whether any traffic
    study is required for a project, not whether a particular intersection must be studied.
    Under CEQA, an EIR must identify and analyze potentially significant
    environmental impacts. (CEQA Guidelines, § 15126, subd. (a).) We reject challenges to
    the EIR’s scope of analysis if substantial evidence supports the agency’s decision and the
    EIR is not clearly inadequate or unsupported. (Federation of Hillside & Canyon
    Associations v. City of Los Angeles (2000) 
    83 Cal. App. 4th 1252
    , 1259.) In determining
    the geographic reach of the traffic study, the City relied on expertise and advice from its
    own staff and Caltrans’s staff as well as traffic demand models developed by SACOG.
    We find substantial evidence supports the traffic study’s geographic delineation.2
    for additional studies. Instead, Caltrans requested a modification of the FEIR’s measures
    for mitigating impacts to freeways.
    2  Citizens argues we do not apply the substantial evidence test, but instead determine the
    issue as a matter of law de novo. We disagree. Citizens contends the FEIR violated
    CEQA’s procedural provisions by omitting information and failing to provide a reasoned
    response to expert comments. However, Citizens’s argument concerns the adequacy of
    the traffic study scope and questions the City’s reasoning behind its analysis. These are
    22
    Traffic Queues
    Citizens contends the EIR should have analyzed the impact of excessive traffic
    queueing at downtown intersections. The dearth of information on this subject deprived
    decision makers of information about significant environmental impacts in violation of
    CEQA.
    Citizens’s traffic engineer postulated that an analysis of queuing was necessary to
    understand the traffic impact of the Specific Plan, noting “there is a reasonable
    expectation that queues from those intersections might stack back sufficiently to impact
    upstream intersections, creating gridlock conditions.” In response, the FEIR stated the
    City does not currently assess traffic queues except on freeway exit ramps, where
    excessive queueing may impede freeway operations. In addition, “Excessive queuing on
    city streets is expected to occur at intersections where level of service and delay estimates
    are high. Excessive queues on city streets are not as critical as queues that affect
    freeways because vehicles on city streets may not legally block upstream intersections.”
    The EIR does provide analysis of traffic queues under several conditions, with and
    without mitigation. The City analyzed the impacts using software designed to estimate
    levels of service and potential delay. Utilizing this software, queues are reported for all
    approaches to all intersections, and queues that cannot be accommodated within available
    storage areas, turn bays, and between intersections are identified.
    As the trial court noted, traffic queues were adequately studied using computer
    modeling, and shifts in traffic patterns and route choices resulting from development
    were taken into account by using a computer model from SACOG. In addition, the City
    relies on the requirement that the Project optimize signal timing.
    questions of the factual basis for the FEIR’s conclusions, not questions of omissions or
    procedural failures.
    23
    Mitigation Measures for 44 Intersections
    Citizens faults the DEIR’s “summary dismissal” of mitigation for 44 intersections
    within the Specific Plan area. According to Citizens, the DEIR based its conclusion that
    mitigation would not be feasible on the DEIR’s determination that any mitigation would
    conflict with the City’s pedestrian-friendly street design guidelines and “Smart Growth”
    policies that discourage the addition of traffic lanes. Citizens disputes this conclusion.
    The DEIR concluded there was no additional mitigation for the 44 intersections
    other than the widening of roadways. The City found widening or restriping the
    roadways, suggested by Citizens, was not feasible because these actions were contrary to
    the City’s adopted “Smart Growth” principles and policies. These actions would also
    conflict with the City’s objective of providing pedestrian-friendly streets. In addition,
    widening streets would create secondary impacts to adjacent properties through
    acquisition of additional rights-of-way for new lanes.
    Citizens criticizes the City for applying these pedestrian-friendly guidelines “on a
    blanket basis to supersede the General Plan traffic level-of-service criteria and standard
    of significance adopted in the EIR.” However, the FEIR stated that the DEIR “does not
    imply that the pedestrian-friendly street goal supersedes the City’s level-of-service
    policy. It is one factor to be considered in determining whether to override a residual
    significant level-of-service impact. Other considerations including impacts to adjacent
    properties and financial viability were considered in determining whether additional
    mitigation would be feasible.”
    The City’s General Plan identifies level of service as a goal, not a mandatory
    policy, providing that City “[w]ork[s] towards achieving an overall Level of Service C on
    the City’s local and major street systems.” The City’s Smart Growth policies were part
    of the formulation of the Specific Plan and are also General Plan policies. In addition,
    the FEIR noted that good-faith attempts were made to mitigate level-of-service impacts
    on arterial streets where feasible. It is within the City’s discretion to balance competing
    24
    policy goals. (Families Unafraid to Uphold Rural etc. County v. Board of Supervisors
    (1998) 
    62 Cal. App. 4th 1332
    , 1336-1338.)
    Citizens does not contest that in determining whether a mitigation measure is
    feasible “the City may consider economic, legal, social, and technological factors and to
    an extent desirability.” However, Citizens argues the City must identify the mitigation
    measure for each and every one of the 44 intersections “and then determine on an
    intersection-by-intersection basis whether the mitigation is infeasible based on the
    conditions at the intersection and application of the City’s pedestrian-friendly guidelines
    as well as other environmental factors.”
    Citizens concedes no authority supports its argument yet urges us to adopt such a
    requirement. We decline. The City may reject mitigation measures if it finds them to be
    not feasible on the basis of specific economic, legal, social, technological, or other
    considerations. (CEQA Guidelines, § 15091; Pub. Resources Code, § 21080, subd. (a).)
    Such a determination is based on a reasonable balancing of the relevant factors. (CEQA
    Guidelines, § 15364.) CEQA does not mandate a stringent, exhaustive consideration of
    each and every environmental impact to be analyzed, but a general balancing of the
    factors in support of or in opposition to mitigation.
    Here, the City balanced the competing policy considerations in determining the
    feasibility of mitigation measures on intersections within the Specific Plan area.
    Substantial evidence supports the FEIR’s conclusion that widening or restriping
    roadways was not feasible.
    Interstate 5 Off-Ramp
    According to Citizens, the FEIR provides no mitigation for the initial phase of the
    Specific Plan’s impact on the Richards Boulevard/Interstate 5 off-ramp in the southbound
    direction. Since Caltrans stated the Project would cause traffic queues that might create a
    safety hazard, the failure to provide such mitigation violates CEQA.
    25
    In commenting on the DEIR, Caltrans requested that the City expand its analysis
    of freeway impacts. In response, the City consulted with Caltrans to address
    improvements to the state highway system and modified the mitigation measures set forth
    in the DEIR to reduce potential impacts. Substantial evidence supports the City’s
    assertion that it identified all feasible mitigation measures for freeway ramps, including
    the off-ramp in question.
    Fee-Based Mitigation
    Citizens disputes that the fee-based mitigation proposed by the City for the
    Richards Boulevard interchange satisfies CEQA. The FEIR proposes replacing the
    existing Richards Boulevard interchange with a split diamond interchange. Citizens
    contends the fee-based mitigation is not part of an enforceable plan.
    Fair-share payments may adequately mitigate impacts if they are “part of a
    reasonable plan of actual mitigation that the relevant agency commits itself to
    implementing.” (Anderson First Coalition v. City of Anderson (2005) 
    130 Cal. App. 4th 1173
    , 1188.) In Anderson First, an EIR proposed highway improvements to alleviate
    traffic impacts and concluded the impacts could be mitigated to a less than significant
    level. The appellate court held that the EIR had to include an identification of the
    required improvement; an estimate of the cost of the required improvement; sufficient
    information to determine how much the project would pay toward the improvement; and
    a requirement that fees be part of a reasonable, enforceable plan sufficiently tied to the
    mitigation. (Id. at pp. 1187-1190.)
    Citizens contends the DEIR fails to establish the fees are part of a reasonable,
    enforceable mitigation plan and when mitigation will take place. However, the fair share
    mitigation fees outlined in the EIR satisfy these two requirements. The City adopted
    mitigation measures that identify traffic improvements to reduce specific traffic impacts
    and tie the fee payments to the improvements. The City also adopted a Public Facilities
    Financing Plan (Financing Plan), which includes the costs of the improvements. In
    26
    addition, the method for determining the fair share payments is set forth in the Financing
    Plan and is part of an enforceable program.
    Citizens argues the EIR’s reliance on a future nexus study connotes a failure to
    identify the amount of the Specific Plan’s fair-share contribution. In fact, Citizens
    claims, there is no evidence that the proposed fees are anything more than a “proposal.”
    The DEIR estimated the costs of roadway improvements needed to mitigate the
    Specific Plan’s significant traffic impacts. In calculating Project contributions, the DEIR
    states, “[t]he applicant’s fair share contribution shall be calculated pro rata, on a per unit
    and/or square foot basis, based upon the land uses identified in development applications
    submitted to the City.” Under the Financing Plan, a nexus study will be prepared to
    determine how public facility costs are allocated among the new development benefiting
    from the facility and infrastructure improvements.
    The fair share mitigation measures are enforceable through the Financing Plan,
    tentative map conditions of approval, and the Development Agreement. In addition,
    building permits are conditioned on payment of the fair-share contribution to the City.
    The FEIR identified development of a split-diamond interchange at Interstate 5
    and Richards Boulevard as mitigation. The Financing Plan includes allocation for this
    improvement by 2030. The Financing Plan estimates $69,681,000 for the building cost
    for freeway improvements, including “Initial phase estimate of improvement costs based
    on the I-5 Richards Interchange Ultimate Split Diamond cost estimates.” The FEIR states
    the Specific Plan is “required to provide fair-share funding for these interchange
    improvements through payment of development impact fees as specified in the Financing
    Plan.” The FEIR’s determination that the fair-share plan will mitigate the impact on the
    Richards Boulevard interchange is supported by substantial evidence and satisfies CEQA.
    Air Quality Impacts
    Citizens argues the EIR fails to adequately analyze PM10 and PM2.5 emissions
    from Project construction and mitigate them to less than significant levels. According to
    27
    Citizens, the City imposed no limitation on the amount of land that could be graded
    within the railyards at any one time, and therefore the FEIR’s proposed mitigation
    measures were inadequate.
    The DEIR analyzed potential impacts on air quality from fugitive dust particulate
    matter emissions during the 20-year anticipated life of the Specific Plan. The DEIR
    found that compliance with seven proposed mitigation measures would decrease fugitive
    dust (PM10) impacts to a less than significant level. In reaching this conclusion, the
    DEIR followed approaches set forth in Air Quality’s “Guide to Air Quality Assessment
    in Sacramento County.” Air Quality supported approval of the Specific Plan, noting all
    issues identified had been addressed.
    The trial court found the City’s air quality evaluation complied with CEQA. The
    court noted the DEIR set forth seven mitigation measures to reduce particulate matter
    based on the PM10 threshold of significance recommended by Air Quality. In addition,
    the court pointed out the FEIR explained that construction would be occurring on
    subareas much smaller than the total Project area at any given time, and the construction
    particulate control measures were appropriate to the intensity and area of activity for each
    Project phase described in the FEIR.
    However, Citizens argues that Air Quality’s screening guidelines are not sufficient
    and the City should have conducted a more detailed analysis to ensure the Project’s
    impacts would be mitigated. According to Citizens, Air Quality’s mitigation measures
    adopted by the FEIR are designated as “level one” mitigation. The City improperly
    adopted the mitigation measure, since level one mitigation applies only to an actively
    disturbed area of between 5.1 and 8 acres, and the City failed to impose an 8-acre limit on
    grading.
    The FEIR states that Specific Plan development will occur in several phases over
    various subareas of the Project over a span of about 20 years. At any given point in time,
    construction activity will be occurring on portions of the Project site that are much
    28
    smaller than the entire site. The City incorporated Air Quality’s “Rule 403” to ensure
    that particulate emissions during grading and construction will be less than significant
    using conservative assumptions regarding the number of acres to be graded at any one
    time.
    Substantial evidence supports the trial court’s conclusion that mitigation measures
    derived from Air Quality, coupled with conservative assumptions about the number of
    acres to be graded at one time, adequately address the impact of emissions from Project
    construction.
    Citizens also contends the City used “an incorrect standard of significance” for
    TAC’s. CEQA defines “threshold of significance”: “Each public agency is encouraged
    to develop and publish thresholds of significance that the agency uses in the
    determination of the significance of environmental effects. A threshold of significance is
    an identifiable quantitative, qualitative or performance level of a particular environmental
    effect, non-compliance with which means the effect will normally be determined to be
    significant by the agency and compliance with which means the effect normally will be
    determined to be less than significant.” (CEQA Guidelines, § 15064.7, subd. (a).)
    The lead agency determines whether an environmental impact is significant and
    also determines the corresponding threshold of significance. In exercising this discretion,
    the agency may rely on threshold of significance data developed by experts, and may also
    rely on a regulatory agency. (Napa Citizens for Honest Government v. Napa County Bd.
    of Supervisors (2010) 
    91 Cal. App. 4th 342
    , 362-363; California Native Plant Society v.
    City of Rancho Cordova (2009) 
    172 Cal. App. 4th 603
    , 625-626.)
    Thresholds of significance do not automatically determine whether an
    environmental impact will be significant. Instead, they serve as a marker to determine
    whether a particular impact will normally be determined to be significant or less than
    significant. (Protect the Historic Amador Waterways v. Amador Water Agency (2004)
    
    116 Cal. App. 4th 1099
    , 1108-1109.)
    29
    Citizens argues its expert presented evidence that use of a 100-in-one-million
    standard would create excessive cancer risk. According to Citizens, typically cancer risks
    from construction equipment are compared to the significance threshold of 10 in one
    million.
    Air Quality is the agency responsible for TAC emissions, which contain diesel
    particulate matter (DPM), in the Project area. However, Air Quality does not have a
    threshold of significance to recommend on TAC emissions.
    The DEIR recognized that Project construction and operations would cause TAC
    emissions. To evaluate the potential health impacts from exposure to DPM, the primary
    TAC of concern, two health risk assessments were prepared by the ENVIRON
    Corporation.
    One of the health risk assessments evaluated the potential cancer risk to the
    community surrounding the Project area from chemicals that may become airborne
    during construction on contaminated soil and from DPM emissions from construction
    equipment. Using computer modeling, the assessment estimated emissions from
    construction activities on 23 parcels within the Project area during four phases of Specific
    Plan development. The assessment also utilized guidance from both the state and federal
    Environmental Protection Agencies to estimate cancer and noncancer hazard risks from
    emissions and applied the National Contingency Plan (NCP) target cancer risk levels, a
    lifetime incremental cancer risk not in excess of one in a million to 100 in a million. The
    assessment determined that the health risk from soil and DPM emissions during
    construction activities fell below the NCP target risk levels for airborne soil chemicals
    and was slightly higher than the 10 in a million for DPM emissions, a risk level that
    would likely be reduced to less than 10 in a million by mitigation measures such as diesel
    particulate filters, reduced idling, and newer construction equipment. The FEIR
    determined a cancer risk level from DPM slightly higher than 100 in a million, a figure
    that would likely be reduced by 45 percent as a result of implementing an air quality
    30
    management plan for Project construction to a level within the NCP target risk range of
    one in a million to 100 in a million.
    Air Quality, despite some earlier questions, ultimately accepted the TAC impact
    analysis. It reasoned it was sufficient for a program level analysis based on limited
    information about actual projects. Air Quality concurred in the methodology used in the
    FEIR to assess TAC impacts but noted that the methodology had evolved and future
    projects may be required to use a different or modified analytical approach.
    Citizens, relying on its expert’s opinion, contends the qualitative standard used by
    the DEIR to assess the significance of cancer risk posed by TAC’s from mobile sources
    should have used the standard of significance for cancer risk posed by TAC’s from
    stationary sources. The FEIR responded to this objection by explaining the technical
    difficulties involved in setting a quantitative standard for cancer risk from mobile
    emissions. Instead, the EIR employed a qualitative standard derived by quantitative
    analysis based on Air Quality’s protocol.
    Citizens also claims that, based on its expert’s opinion, the assessment of health
    risk to the surrounding community from construction TAC’s improperly applied the NCP
    target levels of 100 cases per million. However, we agree with the trial court’s finding
    that “the differing opinion of petitioners’ expert on the proper application of the NCP
    target rate in the assessment [citation] does not clearly establish that the EIR’s application
    of the target rate was wrong. [Citation.] And the update in the assessment did not
    change the standard of significance in the Final EIR: the DPM data changed but the NCP
    target range remained the same.”
    The health risk assessment states: “The National Contingency Plan (NCP)
    (40 Code of Federal Regulations [CFR] §300) is commonly cited as the basis for target
    risk and hazard levels. According to the NCP, lifetime incremental cancer risks posed by
    a site should not exceed one in a million (1 x 10-6) to one hundred in a million (1 x 10-4),
    and noncarcinogenic chemicals should not be present at levels expected to cause adverse
    31
    health effects (i.e., HI greater than one).” The health risk assessment also notes that other
    agencies have reached different conclusions regarding the toxicity of DPM. The
    assessment concludes: “Consistent with the findings of CalEPA, other health agencies
    and scientific bodies have concluded that diesel exhaust is a probable human carcinogen.
    However, with the exception of the World Health Organization (WHO), these agencies
    have concluded that there is insufficient information from which to determine a
    quantitative dose-response relationship and thus to derive a unit risk factor.” The City
    did not abuse its discretion in utilizing a standard based on Air Quality’s protocol.
    DISPOSITION
    The judgment is affirmed. The City shall recover costs on appeal.
    RAYE              , P. J.
    We concur:
    NICHOLSON             , J.
    HULL                  , J.
    32
    

Document Info

Docket Number: C065220

Filed Date: 10/7/2015

Precedential Status: Non-Precedential

Modified Date: 4/17/2021