Tiburon Open Space Committee v. County of Marin ( 2022 )


Menu:
  •       Filed 5/12/22
    CERTIFIED FOR PUBLICATION
    IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA
    FIRST APPELLATE DISTRICT
    DIVISION TWO
    TIBURON OPEN SPACE
    COMMITTEE et al.,
    Plaintiffs and Appellants,             A159860
    v.                                     (Marin County Super.
    COUNTY OF MARIN,                       Ct. No. CIV1704069)
    Defendant and Respondent;
    THE MARTHA COMPANY,
    Real Party in Interest and
    Respondent;
    TOWN OF TIBURON,
    Intervener and Appellant.
    The Martha Company (Martha) owns the largest undeveloped parcel of
    real property in the vicinity of the Town of Tiburon, 110 acres on top of a
    mountain, overlooking much of the town and commanding a stunning view of
    San Francisco Bay. One county supervisor described the site as “the last
    remaining undeveloped ridgeline on the Tiburon peninsula,” and, as such,
    “it’s treasured by residents and visitors.” Another supervisor called it
    “amazing,” “unique,” and “an absolute treasure,” while a third termed it a
    “jewel.”
    1
    For decades, Martha has tried to get official approval from the County
    of Marin to develop the property. Local opposition has been intense and
    unrelenting.
    One manifestation of that opposition has been periodic bouts of
    litigation in federal district court, starting in 1975, between Martha and the
    County. The litigation produced two stipulated judgments, one in 1976, the
    other in 2007. The most significant aspect was that the County twice
    solemnly—and publicly—agreed to approve Martha building no fewer than
    43 units on the property.
    Approval for Martha finally came in October 2017—12 years after its
    latest application for permission to develop the property—when the County
    certified an environmental impact report and conditionally approved
    Martha’s master plan to construct 43 single-family residences. The County
    took this action in the belief it was compelled by the stipulated judgments,
    particularly the 2007 one.
    It is axiomatic that governmental powers are indefeasible and
    inalienable. They cannot be surrendered, suspended, contracted away,
    waived, or otherwise divested. In short, government cannot bind itself not to
    govern by exercising its rightful powers, nor can it bind the hands of its
    successors.
    The primary issue here, advanced by the Town and a number of
    interested Tiburon residents, is whether the County violated this principle by
    complying with an ostensibly final judgment. The allegation is that the
    County in effect agreed it would not follow or enforce state law, specifically,
    the California Environmental Quality Act (CEQA), to prevent development of
    an anticipated project by the other party to the litigation.
    We conclude that the County did not abdicate its authority or otherwise
    2
    undertake not to comply with CEQA. With its eyes wide open, the County
    complied with a binding, final judgment to which it was a party, and that
    judgment in no way anticipated or legitimated ignoring CEQA.
    We reject the remaining objections from the Town and interested
    persons, and affirm the judgment in full.
    BACKGROUND1
    The Federal Court Judgments
    Martha is the owner of 110 acres of real property that is, for all
    practical purposes, undeveloped. Although the site is located in an
    unincorporated area of the County of Marin, it overlooks much of the Town of
    Tiburon. It also commands a sweeping panoramic view of almost all of the
    San Francisco Bay.
    Developing the site with single-family residences has been Martha’s
    goal for decades. That prospect has generated intense opposition, especially
    from the Town and residents of Tiburon. But also from the County, which
    was twice in federal district court opposing Martha’s plans to develop the
    site. That litigation concluded with two judgments entered pursuant to
    stipulated settlements. Those judgments are at the heart of this dispute.
    The current chapter of the dispute begins in 1974, when the County
    adopted a re-zoning measure that reduced the number of residences Martha
    could build on the site from a minimum of 300 units to a maximum of 34.2
    1  Our review has been considerably assisted by the exceptionally
    detailed 86-page Order After Hearing filed by the Honorable James T. Chou.
    Quotations in this portion of our opinion are from that document unless
    otherwise noted, with minor non-substantive editorial modifications for
    clarity.
    2 And maybe not even that: in 2018 the district court stated that
    “approximate[ly] eighty-eight acres of the Property were rezoned to permit
    only one unit for every five acres. The new ordinance thus limited Martha to
    3
    The re-zoning would also preclude Martha from building on an area known as
    the Ridge and the Upland Greenbelt. In response, Martha sued the County
    in federal district court, seeking $6 million on the theory that the re-zoning
    effected a regulatory taking of property.
    “In December 1976 Martha and the County settled the federal lawsuit
    by a stipulated judgment (the 1976 Judgment) which provided in part:
    1 Martha was allowed to develop no fewer than 43 single-family homesites on
    minimum one-half acre lots; and 2 Martha could place some homesites within
    the Ridge and Upland Greenbelt, defined as 300 ft. horizontally and 100 ft.
    vertically of visually prominent ridgelines. The County also determined that
    43 single-family units located on one-half acre minimum lots ‘is consistent
    with the goals of the general plan and will allow the owners a feasible
    economic use of their property.’ The settlement took place before Martha
    submitted its proposed master development plan, drawings, or maps.
    “In return, Martha was required to dedicate about 50% of the land to
    the County as open space and to allow the County to develop public hiking
    trails in these open spaces. This agreement was made to run with the land.
    In a letter to the Board of Supervisors dated December 23, 1976, commenting
    on the stipulated judgment, County Counsel explained that Martha’s master
    development plan must still meet ‘procedural and hearing requirements,
    including an environmental impact report, and comply with all applicable
    design standards.’ ”
    At this point, because of its centrality, the express language of the 1976
    Judgment must be quoted, the most important of which was the following:
    “[A]fter review of the site and a proposed development plan of the Martha
    constructing twenty-seven units, with a possible ‘bonus’ of seven units, for a
    total of thirty-four units.” (Record citations omitted.)
    4
    Co., property the Planning Department and Board of Supervisors have
    determined that development of the parcel with not less than a minimum of
    43 single family residential units located on one-half acre minimum lots is
    consistent with the goals of the general plan . . . . [¶] . . . [¶] It is expressly
    agreed that 43 residential units is the minimum number of units to be
    allowed on the Martha Co. property.”3
    “After years of planning, Martha submitted its application for a
    development plan to the County, and the County in turn directed Martha to
    file its application with the Town for approval. After the Town conducted
    years of study without rendering a decision, Martha withdrew its application
    from the Town and on April 19, 2005, reapplied to the County.
    “The County still refused to process the application, asserting the
    property would require services from the Town over which the County lacked
    jurisdiction. Also, neighbors who own parcels within 300 feet of Martha’s
    property (the ‘property owners’), complained to the County that the 1976
    stipulated judgment was void and violated their Due Process rights because
    the County entered into the stipulated judgment without providing them
    notice and an opportunity to be heard.”
    The County responded by returning to federal district court in 2005,
    asking that it “be relieved from operation of the Judgment.” Martha and the
    3  Immediately followed by this language: “The Board of Supervisors,
    Planning Commission and Planning Department will, in good faith, consider
    a proposed rezoning and a development plan or plans for development of a
    greater number of units submitted by the Martha Co., . . . including, but not
    limited to, esthetics, protection of ridge lines, environmental factors, traffic
    generation and community services impact.”
    The judgment itself recited that “Forty-three (43) residential units is
    the minimum number of units to be allowed on the Martha Co. property,”
    followed by reiteration of the just-quoted language.
    5
    Town were named as defendants, as were a number of the property owners—
    presumably because they had threatened to sue the County it if moved to
    enforce the 1976 judgment. The County alleged that the 1976 Judgment was
    “void and unenforceable [because], inter alia, environmental laws have
    changed in the 30 years since the 1976 Judgment, and while the limits of the
    County’s authority to contract away its discretion over certain environmental
    land use issues was not clear in 1976, it is now clear that it was illegal for the
    County to have contracted away its authority to evaluate the minimum
    density provisions of the proposed development without conducting a full
    environmental review as required by the California Environmental Quality
    Act . . . . [¶] The County alleged that to bind it to the 1976 Judgment under
    these circumstances ‘would thwart the strong public policy of the State of
    California to allow a development of this magnitude, on environmentally
    sensitive and constrained land to proceed without the development and
    density being subject to CEQA review.’ ”
    The County’s position was echoed by the property owners, who “filed
    counterclaims against the County, Martha and the Town . . . asserting [that]
    by entering into the 1976 Judgment the County violated the property owners’
    federal due process rights; the 1976 Judgment violated their state and local
    notice and hearing rights without providing them notice and an opportunity
    to be heard; and the County illegally contracted away its police powers over
    its statutory land use authority when it entered into the judgment.”
    After the district court dismissed the County’s complaint and the
    property owners’ counterclaims,4 the County and Martha again drafted and
    4  The district court concluded that neither the County nor the
    property owners could meet the demanding standard required to set aside a
    final judgment under Rule 60 of the Federal Rules of Civil Procedure: relief
    must be “reserved for those cases of ‘injustices which . . . are deemed
    6
    submitted a Stipulation for Entry of Judgment and Procedures for Enforcing
    Judgment Entered in the first action.5 The stipulation itself is not in the
    record. Because of its importance, the judgment—dated November 7, 2007,
    and hereafter cited as to 2007 Judgment—must be described in some detail.
    It opens with the following:
    “Based upon the [dismissal] rulings of the Court, the County
    acknowledges that it must process a subdivision map in conformance with
    the 1976 Judgment. Therefore the parties have settled all litigation between
    them by creating a timeline and procedures for enforcing the 1976 Judgment,
    and this Court implements such settlement by ordering as decreeing as
    follows:
    “[¶] . . . [¶]
    “2. 1976 Judgment
    “2a. Right to 43 homes. Pursuant to the 1976 Judgment, the County is
    required to approve forty-three (43) homesites on the Martha Property unless
    the parties subsequently agree otherwise in writing.
    “2b. Minimum Half-Acre Lots. Pursuant to the 1976 Judgment, each
    of the 43 lots to be approved by the County shall be at least one-half acre in
    size, unless the parties subsequently agree otherwise in writing. These lots
    sufficiently gross to demand a departure’ from rigid adherence to the doctrine
    of res judicata.” (United States v. Beggerly (1998) 
    524 U.S. 38
    , 46.)
    Still pending was Martha’s counterclaim/motion seeking, in the
    words of the district court, “that the County process and approve its
    development application.” This was eventually denied in July 2018. (See fn.
    7, post.)
    5   County Counsel told one County Supervisor that “Facing a very
    costly trial before a very hostile judge with a potentially catastrophic result
    (i.e., appointment of a special master to process the development and
    damages for refusing to process [Martha’s application] for 3 years), the
    County settled via a new Judgment Pursuant to Stipulation.”
    7
    are intended to be placed on geologically safe portions of the site, without the
    necessity for extensive landslide repair, rather than in the path of known
    landslides. If the parties cannot agree whether any required landslide repair
    is unreasonably extensive under the circumstances, the parties may petition
    this Court for binding instructions.
    “2c. Lots within the Ridge and Upland Greenbelt. In conformance with
    the 1976 Judgment, the County shall allow some development within the
    Ridge and Upland Greenbelt.
    “3. Revised Scope of Application. Martha intends to revise its 2005
    Application to request approval of a forty-three (43) unit subdivision map as
    required to be approved under the 1976 Judgment (‘2007 Application’), . . .
    and to file such 2007 Application with the Marin County Community
    Development Agency.
    “4. Action Required by County to Implement the 1976 Judgment.
    “4a. Action on 2007 Application. The County shall procure a full scope
    Environmental Impact Report (EIR) for the project. The County shall take
    final action to certify a final Environmental Impact Report (EIR) in
    conformity with the California Environmental Quality Act, . . . and to act on
    the 2007 Application within fourteen months of the date on which the 2007
    Application is filed.
    “4b. Legal Infeasibility of Any Alternative or Mitigation Measure
    Inconsistent with the 1976 Judgment. The County has acknowledged that
    any development alternative, or any proposed mitigation measure, which
    does not accord Martha all rights to which it is entitled under the 1976
    Judgment is legally infeasible unless required to assure health or safety.
    Should the parties disagree as to what measures or alternatives are required
    to ensure ‘health or safety,’ the parties shall jointly petition this Court for
    8
    binding instructions which implement the 1976 Judgment and this Judgment
    to the greatest extent feasible consistent with health and safety.
    “4c. Protected Species. Notwithstanding the foregoing, it is not the
    parties’ intent to allow the unmitigated taking of any endangered,
    threatened, listed, or otherwise protected species identified in the extensive
    environmental reviews prepared for the Martha Property by the Town of
    Tiburon (‘Identified Species’). If the parties cannot agree on adequate
    mitigation measures concerning Identified Species, the parties shall jointly
    petition this Court for binding instructions concerning the adequacy of such
    mitigation.
    “[¶] . . . . [¶]
    “4f. Prompt Action on Final Map. The County shall promptly review
    and process Martha’s proposed Final Map and approve the Final Map on the
    first legally permissible date following approval of the Tentative Map. The
    filing of a legal challenge by third parties to County action shall not
    constitute grounds for refusal to process, approve and record the Final Map.
    Moreover, the County shall not use any County custom, policy, or procedure
    which is not mandated by state law to deny or delay approval and recordation
    of the Final Map.
    “[¶] . . . . [¶]
    “6. Effect of Subsequent Events.
    “6a. Defense of Approvals. Should litigation be commenced to overturn
    County certification of the environmental impact report for this project or to
    overturn County approval of development, or to otherwise interfere with any
    permit or entitlement which the County has granted to Martha, then the
    County shall take all action necessary under state law to defend such
    certification, approval, permit or entitlement.”
    9
    Subsequent Administrative Proceedings
    “In December 2008, Martha filed its current development application
    with the County. . . . [I]n March 2011, the County, as the lead agency
    prepared and circulated a draft EIR[6] . . . which identified and analyzed the
    environmental setting, impacts and mitigation measures for these
    environmental conditions: Section 5.1—Transportation; Section 5.2—Air
    Quality; Section 5.3—Noise; Section 5.4—Geology/Soils; Section 5.5—
    Hydrology/Water Quality; Section 5.6—Biological Resources; Section 5.7—
    Public Services; Section 5.8—Visual Quality; and Section 5.9—Cultural
    Resources. The draft EIR also examined four alternatives to the project: 1—
    a ‘No Project’ alternative mandated by CEQA (Cal. Code Regs., tit. 14,
    § 15126.6(e)); 2—a ‘Reduced Density Alternative’ of 32-units which proposal
    was contained in a prior M.O.U. between Martha and [Town], but which
    agreement had since expired [see fn. 25, post]; 3—a ‘Visual Quality
    Alternative’ of 43 units on lots smaller than originally proposed by still
    within the ‘minimum lot size contained in the Judgment’ and with
    considerably fewer homes at higher elevations in the Ridge Rd. section; and
    4—a ‘Biological Resources Alternative’ consisting of 43 homes, but in a
    reconfigured site plan of smaller lots designed to reduce the biological
    impacts from the proposed project.
    “On April 25, 2011, the County Planning Commission held a public
    hearing on the Draft EIR and the Commission received written and oral
    comments on the Draft EIR from individuals, public entities and neighbors to
    the project. The Commission responded to these comments in the Final EIR
    (FEIR). The County circulated the FEIR’s Responses to Comments on June
    6This was the third draft EIR. The first and second were prepared by
    the Town, in 1996 and 2001, respectively.
    10
    28, 2013. . . .
    “On October 22, 2013, the Board of Supervisors held a public hearing to
    consider certification of the FEIR and to further discuss the impacts and the
    feasibility of proposed mitigation measures in the FEIR. [¶] The Board
    heard recommendations from the Planning Commission, a presentation by
    Martha’s EIR consultant, and public comments. At the close of the session
    the Board continued the hearing for further clarification on impacts and
    mitigation measures, e.g., traffic impacts during school peak hours,
    residential water pressure, fire flow, cumulative traffic impacts, threat to
    red-legged frog, and continued the hearing to receive this additional
    information. Martha’s EIR consultant Nichols/Berman prepared responses
    for the specific issues raised. [¶] On March 11, 2014 the Board of
    Supervisors held a duly-noticed public hearing to consider certification of the
    FEIR and to answer their concerns over ‘whether those significant impacts
    have been shown to be mitigable and whether the mitigations identified are
    actually feasible.’ [¶] . . . [¶]
    “The Board declined to certify the FEIR at that time concluding ‘there
    are too many unknowns’ about the proposed mitigation measures for water
    pressure and fire flow because an ultimate feasibility determination depends
    on a more specific development proposal; some mitigation measures in the
    FEIR ‘do not fully mitigate the significant impacts’; and the applicant has not
    demonstrated ‘project feasibility and project compliance with mitigation
    measures contained in the Final EIR.’ The Board voted to retain jurisdiction
    over the Final EIR until Martha submitted a more specific proposal to
    demonstrate the feasibility of the mitigation measures, with input from
    [additional agencies].”
    More than three years passed before Martha returned with the “more
    11
    specific proposal” demanded by the Supervisors.7 In June 2017, Martha
    submitted a modified Master Plan that reduced the size of some lots and
    relocated others “downslope from the original plan and away from special
    status plant habitats.”8
    7   During this period, Martha went to district court for a third time. In
    a 2018 order, the district court summarized what happened: “[O]n May 25,
    2016, Martha filed a Motion to Enforce and Require Marin County’s
    Compliance with Judgments and, alternatively, for Appointment of a Special
    Master (‘Prior Motion to Enforce’). In that motion, Martha accused the
    County of violating the Stipulated Judgments and requested that the Court
    set new timelines and procedures by which the County of Marin must take
    final action on Martha’s development application. Alternatively, Martha
    sought appointment of a special master to oversee the completion of Martha’s
    ‘entitlement process’ and an order ‘requiring the County, including any third
    party in active concert with the County, to cease and desist from taking
    actions inconsistent with or that otherwise undermine the terms of the two
    judgments.’ [¶] The Magistrate held a hearing on the Prior Motion to
    Enforce. The parties stipulated to deadlines for Martha to submit revised
    plans and for the County to process those plans up to a final decision on the
    EIR. As a result, the Magistrate recommended denying the motion without
    prejudice, and authorizing her [the Magistrate] to review the parties’
    anticipated status reports. The Court accepted the Magistrate’s
    recommendations.” (Record citations omitted.)
    8   When the Board ultimately approved the project, among the
    “Findings Pursuant to the California Environmental Quality Act” was
    language describing how the project was still at a very preliminary stage:
    “The Master Plan application proposes to create 43 residential lots for
    development of single-family homes. The applicant is not proposing to
    construct any homes at this time, but is requesting approval of a series of
    design guidelines and standards, including minimum house sizes (square
    footage) for each lot, that would regulate future home construction on the
    property. . . . The applicant proposes to construct roads and utilities to serve
    each of the 43 residential lots. The application also includes a proposal to
    construct a temporary construction access road that would be used for all
    phases of project construction, including future home construction.”
    “Applicant[’s] proposed grading is intended to prepare the project site for
    residential development by installing roadways and utilities and repairing
    landslides and unstable areas. . . . The applicant proposes to improve or
    12
    “Additionally, Martha agreed to a phased-review of its development
    application. The first phase, at issue here, includes the certification of the
    Final EIR, the approval of Martha’s modified Master Plan and approval of
    the rezoning application.[9] The Board held public hearings on September 19,
    2017 and again on October 3 to consider the EIR, the modified Master Plan
    and rezoning application.” Via written comments and oral presentations at
    repair landslides that have a higher potential to affect proposed
    improvements including residential lots.” “Proposed residential lots would
    range in size from 0.5 to 1.67 acres. The 43-lot project has a gross density of
    one housing unit per 2.55 acres considering the entire 110-acre site area. . . .
    Houses would range in size from 5,000 square feet to 8,750 square feet.”
    Proposed non-residential features were also described: “[T]wo
    parcels (Parcel A—68.89 acres and Parcel B—5.86 [acres]) would be offered
    for dedication to the Marin County Open Space District. Parcel B is proposed
    as a Marin dwarf flax (a special status plant species) preserve. The
    application also proposes an [sic] 265,000-gallon concrete water tank that
    would be constructed on Parcel C (0.36 acres), the downsizing and relocation
    of the existing 1-million gallon Forest Glen water tank, and a small parcel to
    be reserved for a possible future Marin Emergency Radio Authority . . .
    facility.”
    In its brief on these appeals, Martha provides some additional
    details: “All lots would be in geologically stable areas. Twenty-four lots
    would be next to the Hill Haven residential subdivision and accessed by an
    extension of Ridge Road. Six lots would be located off Paradise Drive, and
    the remaining 13 lots would be accessed via Forest Glen Court, which would
    be extended from Paradise Drive (and upgrade an existing maintenance
    road). Each of the 43 lots would include a landscape envelope, within which
    all residential improvements must be placed. Roads and utilities would be
    constructed to serve the lots.”
    9  “Once the modified Master Plan is approved, Martha must next
    submit a Precise Development Plan and Tentative Subdivision Map to the
    County. If those applications are approved, Martha will submit a Final
    Subdivision Map and applications for construction permits. Martha must
    obtain approvals at each phase before the project may proceed to the next
    phase of approvals.”
    13
    the hearings, the Board was made aware of the intense opposition to the
    project.10
    The Board’s Hearings And Approval
    The September 19 hearing commenced with County Counsel advising
    the Board of the litigation history and the two stipulated judgments. He
    characterized the 2007 Judgment as “very strong . . . and quite unusual” in
    that the Board’s “normal” and “significant discretion” with regard to
    “planning and zoning matters” was “constrained in this case” because the
    2007 Judgment “reiterated that the county is required to approve 43 units . . .
    on this property.” He also mentioned that the district court’s “supervision
    continues to this day.”
    A private consultant retained by the community development agency
    told the Board that the concerns voiced by the Board at a hearing in March
    2014—when the draft EIR was presented—had been satisfactorily addressed
    by Martha, and “today we want to demonstrate the feasibility of the
    mitigation measures.” Also, “One of the major concerns [of] the property is
    landslides,” but Martha had addressed that by directing that “development is
    really placed in the area where there are no landslides which are pretty much
    10  One manifestation of that opposition was a private effort that would
    have hamstrung any effort to develop the property. At the same time as the
    hearings were being held, a group calling itself the Tiburon Belvedere
    Residents United to Save the Trails (TRUST) sued Martha on the theory that
    the public’s use of trails on the property established a recreational easement.
    The claim was rejected. TRUST’s president and its counsel appeared at the
    first hearing to oppose Martha’s plan to develop the site. At the second
    hearing the Board watched a video made by TRUST, and again heard from
    TRUST’s counsel. The possible impact of that litigation was mentioned at
    several points in the hearings.
    Other organizations opposing the project were the Watershed
    Alliance of Marin, the Marin Conservation League, and the “Sierra Club
    Marin group.”
    14
    the ridge tops. . . . [¶] The master plan has been moved down and away from
    the top of the ridge.”
    The consultant also told the Board that “One of the issues we looked at
    was the visual impact. When they [Martha] extended that roadway, I was
    concerned with what the visual impacts would be . . . . Now they extended
    that road out further, but the mitigation for this was to place the homes
    further down the slope so that one would see the ridgeline.”
    “It was from these analyses that we concluded that No. 1, they
    [Martha] have a project which has a water tank that has been approved by
    the water district. No. 2, they have fire flows, and they have a letter from the
    fire district saying they have adequate fire flow from all of the lots that
    documented that.” Moreover, “the water tank relocation . . . will not be
    visible from offsite,” and “there’s no increase in the loss of the woodland as a
    result of this change.” Too, Martha had “complied with the impact to
    endangered species by either avoiding or mitigating for them.”
    The consultant added “when I first had a meeting on this back in 2008
    in Tiburon, the big issue to all the people at that meeting was, how are you
    going to construct the project? How are you going to get construction
    equipment up there? [¶] The applicant [Martha] went back after that
    meeting and came up with the idea for a construction access road which . . .
    has been analyzed in the EIR, has been demonstrated . . . . Its feasibility in
    the EIR has been demonstrated . . . it can be done. A construction access
    road would work.”
    Accordingly, “staff is recommending that the Board certify the
    environmental impact report, and that . . . anything we need to know from all
    the volumes that were done already on the project, that the modifications
    ha[ve] resulted in no new or more significant impacts, that any mitigation
    15
    required for the modifications are already contained in the EIR, no new
    mitigation measures [are] required.”
    The Board then heard from a representative of Martha, who had
    “21 years of experience with this project.” During that period, Martha had
    significantly reduced the scope of the project—“the original 64 acres . . . for
    potential development has been reduced to 32 acres, so this constitutes a
    50 percent less area than what has been approved in the stipulated
    judgment.” Not surprisingly, Martha “concur[red] with the staff
    recommendation.” Nevertheless, Martha objected to “the recommended
    conditions of approval,” deeming many of them “seriously flawed.”
    The Board then heard from more than 20 speakers, all of whom were
    opposed to approving the project. After hearing responsive comments from
    both the consultant and the Martha representative, the Board continued the
    hearing for two weeks in order that it could be provided more information
    about specified topics, notably whether “unavoidable significant impacts . . .
    have been sufficiently addressed by the proposed conditions and mitigation”
    measures. A recurring theme throughout the hearing was whether specific
    features of the proposed EIR were consistent with, not forbidden by, or
    required by, the federal court judgments.
    The hearing resumed on October 3. The private consultant working
    with county planning authorities again opened with “The Court has ordered
    that this property be approved of 43 houses and lots.” During the course of
    his lengthy remarks, the consultant told the Board that “It was the staff’s
    conclusion based on information provided by the applicant and after peer
    review of consultants retained by the staff to look at those reports, that . . .
    the modifications to the master plan proposed by the applicant do not result
    in any new significant impacts, nor [do] they result in any more severe
    16
    significant impacts than those discussed in the [proposed EIR] that you have
    before you today.”
    Among those modifications were: (1) Martha was voluntarily proposing
    to build an access road for the heavy construction equipment the project
    would require; (2) Martha was voluntarily proposing to “provide public access
    over private streets . . . that will . . . link with the existing end of Ridge Road
    and then to connect to the open space” area on the property; (3) Martha was
    willing to relocate a number of proposed units away from “serpentine
    bluegrass which is a protected species under the court order”; and (4) the unit
    relocation, and reduction of their height would preserve an unimpeded view
    of the ridgeline.
    Martha’s representative opened his remarks by advising the Board that
    “The Easton Point master plan provides 32 acres of development area,
    leaving 78 acres of the site, 71 percent of it, to open space.” The remainder of
    his remarks were directed at the staff recommendation to approve versions of
    the master plan, and the tentative subdivision map, matters that are not at
    issue on these appeals.
    Martha’s counsel and County Counsel spoke to the nature of the federal
    court judgments. The latter’s comments included these ominous words:
    “This is a very unusual project. Because of the stipulated judgments, you
    have much less discretion than you normally would in this kind of
    setting . . . . [¶] It is possible to further lose discretion in this process if we
    have to go back [to] federal court[] and manage the process that way rather
    than continuing with the approvals as recommended, so I just want to
    emphasize that.” “All this is to say there is substantial legal risk to the
    county which also brings with it financial risk in not proceeding with the staff
    recommendation today.”
    17
    Supervisor Sears stated: “[T]his project has a long and complicated
    history and court orders that constrained the board supervisors’ discretion. I
    continue to believe that there are important reasons why the proposed project
    is not right for this location regardless of the reasons for the lawsuit filed by
    the Martha Company in 1975, or the terms of [the] stipulated judgments of
    1976 and 2007, or the federal court . . . intervention that Martha Company
    sought in 2016. [¶] I am troubled that the court, when it accepted the
    stipulated judgments and the parties when they agreed to settle the prior
    lawsuits, did not have the full array of information available now in the EIR.”
    Supervisor Rice stated: “I do think that we are in a very tight spot, and
    we don’t have a lot of discretion of what to do here, and I’m going to . . . make
    the motion to . . . approve the EIR. . . . I don’t think that we have the
    grounds [not to] at this point, and I do so feeling sick to my stomach . . . .
    [¶] I think this . . . is a really difficult place to be, and we are not the . . . [the]
    first board to have to deal with it, and unfortunately our hands are tied by
    many decisions made before our time.”
    For Supervisor Connolly, “really what it’s coming down to is my belief
    that there are profound environmental issues that will never be overcome
    with this proposal; therefore, I’m not going to be able to support it.”
    Supervisors Sears, Rodoni, and Connolly expressed the forlorn hope
    that the property could be purchased so that it could remain in its
    undeveloped state.
    The Board then voted 3 to 2 to certify the Final EIR; to conditionally
    approve Martha’s modified Master Plan of 43 units; and to rezone the
    property for [this increased density] for the lots Martha would relocate to
    preserve the ridgeline.
    The Board actions most germane to these appeals were (1) the
    18
    consideration of alternatives to the 43-unit project as proposed by Martha,
    (2) the conclusion that, with certain exceptions, the significant environmental
    impacts could be mitigated, and (3) as to those significant environmental
    impacts that could not be mitigated, the Board adopted a Statement of
    Overriding Considerations finding that those impacts were subordinated to
    other factors, which were organized under three headings:
    “Section 1.01 Environmental Considerations and Public Safety
    Improvements
    “1. The Project avoids all direct impacts to Marin dwarf flax and
    serpentine reed grass populations and exceeds the EIR mitigation
    requirement for a minimum of 3:1 preservation to impact ratio. The Project
    also exceeds the 3:1 preservation to impact ratio for overall serpentine
    bunchgrass habitat as well as complies with the EIR mitigation measures for
    the California red-legged frog.
    “2. The Project furthers County open space goals through the
    preservation of approximately 74.75 acres of open space land in perpetuity,
    which will be managed according to an Open Space Management Plan.
    “3. The Project, including in particular water tank development as well
    as road and provisions for possible emergency radio improvements, will
    significantly benefit existing homes in the immediate area by providing
    improved fire safety.
    “4. The Project incorporates all feasible mitigation measures to reduce
    potential environmental impacts to the greatest extent practicable.
    “Section 1.02 Legal and Regulatory Considerations
    “1. The Project will allow for a residential development consistent with
    the Judgments. Among other things, the Judgments decree that the owners
    of the Martha Company are entitled to 43 homes on minimum one-half acre
    19
    residential lots . . . .
    “2. The Project balances the protection of ecologically sensitive
    resources with the protection of property rights and the need for housing.
    The Project represents the best compromise in terms of satisfying the
    County’s obligations under the Judgments and to social, environmental, and
    housing considerations, all within the constraints of the County’s resources.
    “3. The Project ensures that the Martha Company will continue to
    have economically viable use of the property. This promotes economic
    development, spreads public burdens fairly, and protects the County from
    regulatory takings challenges.
    “Section 1.03 Social Considerations
    “1. The Project seeks to resolve longstanding legal disputes,
    negotiations, and deliberations regarding the future use of the Project site.
    “2. The Project supports a balance between housing, environmental
    preservation and restoration, population growth, and economic development.
    The Project will expand existing housing within the County, consistent with
    the CWP [CountyWide Plan], while at the same time maximizing the
    preservation of open space lands available to public use.
    “3. The Project provides for public use of portions of the Project site in
    perpetuity, including connectivity adjacent Old St. Hilary’s Open Space
    Preserve lands.
    “4. The Project will substantially improve water supply, fire vehicle
    access, and possible emergency radio service to a remote Wildland Urban
    Interface/State of California State Responsibility Area for fire service.”
    Proceedings in the Trial Court
    Jerry Riessen is one of the property owners, and a dedicated opponent
    of the proposed development. The County named him as a party when it
    20
    sought to have the 1976 Judgment set aside because he had threatened to sue
    the County if it approved development of the site in accordance with the 1976
    Judgment. Riessen is also the president of the Tiburon Open Space
    Committee, and twice spoke in opposition to the project before the Board.11
    Exactly one month after the Board’s votes, in November 2017, Riessen and
    the Committee (hereafter, “the private plaintiffs” or simply “plaintiffs”) filed
    a petition for a writ of mandate against the County. 12
    The private plaintiffs opened their single cause of action with the
    statement that “The County’s action paves the way for the development of the
    single remaining major parcel of open land on the Tiburon Peninsula
    pursuant to a fatally-flawed EIR that fails to comply with the fundamental
    dictates of CEQA. A writ of mandate . . . should be issued to prevent this
    environmental catastrophe from occurring at least until the County fulfills its
    basic duty of appropriately analyzing and mitigating the extensive significant
    environmental impacts identified in the EIR and identifying and mitigating
    the additional impacts not properly disclosed.”13
    11 In addition, at one point in 2011, Mr. Riessen sent comments on the
    Draft EIR in his apparent capacity as “Co-Chair” of the “Last Chance
    Committee.”
    12 The Committee is described in the petition as “the successor to the
    Last Chance Committee which was formed in 1988 and was instrumental in
    preserving Old St. Hilary’s Open Space by enlisting widespread community
    support.” The Committee “was formed for the purpose of finding a way to
    permanently preserve the beautiful and undisturbed open space that is
    threatened as a result of the certification of the subject EIR.”
    13  The “biological-related impacts” were alleged to “include impacts in
    respect to and/or upon special status plants such as the Marin dwarf flax; the
    California Red-legged Frog; loss of serpentine bunchgrass; loss of Coast Live
    Oak Woodlands; disturbance to jurisdictional waters; introduction of invasive
    exotics; disturbances to active bird nests; and loss of ordinance-sized trees.”
    “Significant visual-related impacts would include impacts in respect to and/or
    21
    The private plaintiffs alleged that the County’s approval was defective
    in that the EIR was “legally inadequate in numerous respects, and the
    County’s review and approval was legally deficient. Among other things, the
    EIR fail[ed] to provide an adequate Project description. Significant or
    potentially significant impacts arising from the Project were not adequately
    identified, analyzed, or mitigated. [The County] failed to appropriately
    analyze secondary Project impacts. Mitigation measures imposed on the
    Project are infeasible, speculative, unenforceable and/or insufficiently
    reliable. [The County] failed to adequately respond to numerous public
    comments.”
    “The EIR failed to disclose significant impacts or, at the very least, a
    substantial increase in the severity of the impacts it identified. Given the
    failure fully to disclose impacts, the EIR also necessarily failed to provide a
    reasonable range of mitigation measures or alternatives to reduce or avoid
    those impacts.”
    “The errors and omissions of the EIR resulted in the global failure of
    the EIR to inform the public or decision-makers of the true scope of the
    environmental effects of the Project.”
    Concerning the 1976 and 2207 Judgments, the plaintiffs further
    alleged: “As a result of the agreements [the County] illegally entered into
    with [Martha] in connection with the Federal District Court litigation, [the
    upon fire service, both at the Project level and on a cumulative basis; water
    service; inadequate fire-flow; and open space.” “Significant public services-
    related impacts would include impacts in respect to and/or upon the view
    from Tiburon Ridge; the view from Heathcliff Drive; the view from Paradise
    Drive; the view from Ayala Cove on Angel Island; landslide repair; and light
    pollution.” “In addition, implementation of the Project would result in
    significant air quality, noise, and cultural resources impacts upon subsurface
    resources and to the historic significance of Keil Cove.”
    22
    County] unlawfully truncated its review and consideration of Project impacts.
    The subject agreements were void and against public policy in that, in them,
    [the County] contracted away its police power in violation of California law.
    [The County’s] decisionmakers on the Board of Supervisors would not have
    certified the EIR but for the threat of liability arising from the void
    agreements. [The County’s] refusal to consider and/or mitigate Project
    impacts due to the existence of the void agreements violated CEQA.”
    Ten months later, in August 2018, the trial court granted the Town
    leave to file a petition in intervention. As relevant here, the Town’s petition
    largely reiterated the same points and much of what the private plaintiffs
    had alleged in their petition concerning mitigation measures which lacked
    the support of substantial evidence.14
    After examining the administrative record, hearing extensive
    argument, and filing its exhaustive order denying the petitions (see fn. 1,
    ante), the court entered judgment, from which the plaintiffs and the Town
    perfected these timely appeals.15
    DISCUSSION
    Overview Of CEQA And The
    Standards Of Judicial Review
    Before addressing the particulars of the sometimes intricate and some-
    times overlapping arguments advanced by the private plaintiffs and the
    14  A major portion of the Town’s complaint was devoted to the claims
    that the Board was required to recirculate the draft EIR, and the Board’s
    decision that recirculation was not required did not have the support of
    substantial evidence. The Town does not renew these issues here.
    15 The County elected not to file a separate brief, only a joinder to
    Martha’s brief.
    23
    Town, we believe it useful to set out a brief description of how CEQA oper-
    ates.
    As a general proposition, CEQA depends on the EIR. “An environmen-
    tal impact report is an informational document,” the purpose of which “is to
    provide public agencies and the public in general with detailed information
    about the effect which a proposed project is likely to have on the environ-
    ment; to list ways in which the significant effects of such a project might be
    minimized; and to indicate alternatives to such a project.” (Pub. Resources
    Code, § 21061.)16 According to our Supreme Court: “The purpose of an EIR is
    to give the public and government agencies the information needed to make
    informed decisions, thus protecting ‘ “not only the environment but also in-
    formed self-government.” ’ [Citation.] The EIR is the heart of CEQA, and the
    mitigation and alternatives discussion forms the core of [an] EIR.” (In re
    Bay–Delta Etc. (2008) 
    43 Cal.4th 1143
    , 1162.)
    “A public agency must prepare an EIR or cause an EIR to be prepared
    for any project that it proposes to carry out or approve that may have a sig-
    nificant effect on the environment. (§§ 21100, subd. (a), 21151, subd. (a);
    Guidelines, § 15064, subd. (a)(1).) The EIR must describe the proposed pro-
    ject and its environmental setting, state the objectives sought to be achieved,
    16Statutory references are to this code unless otherwise indicated. As
    did the trial court, we will abbreviate citations to the extensive regulations
    promulgated by the Secretary of the Natural Resources Agency found in title
    14 of the California Code of Regulations beginning at section 15000, as
    “Guidelines” which, we have noted, “are binding upon all state and local
    agencies in applying CEQA.” (Schellinger Brothers v. City of Sebastopol
    (2009) 
    179 Cal.App.4th 1245
    , 1256, fn. 12.) “In our review, we may not inter-
    pret CEQA or the CEQA Guidelines ‘in a manner which imposes procedural
    or substantive requirements beyond those explicitly stated.’ (§ 21083.1.)”
    (Committee for Re-Evaluation of T-Line Loop v. San Francisco Municipal
    Transportation Agency (2016) 
    6 Cal.App.5th 1237
    , 1246–1247.)
    24
    identify and analyze the significant effects on the environment, state how
    those impacts can be mitigated or avoided, and identify alternatives to the
    project, among other requirements. (§§ 21100, subd. (b), 21151; Guidelines,
    §§ 15124, 15125.)
    “The agency must notify the public of the draft EIR, make the draft
    EIR and all documents referenced in it available for public review, and re-
    spond to comments that raise significant environmental issues. (§§ 21091,
    subds. (a), (d), 21092; Guidelines, §§ 15087, 15088.) The agency also must
    consult with and obtain comments from other agencies affected by the project
    and respond to their comments. (§§ 21092.5, 21104, 21153; Guidelines,
    § 15086.) It must prepare a final EIR including any revisions to the draft
    EIR, the comments received from the public and other agencies, and re-
    sponses to comments. (Guidelines, §§ 15089, subd. (a), 15132.)
    “An agency may not approve a project that will have significant envi-
    ronmental effects if there are feasible alternatives or feasible mitigation
    measures that would substantially lessen those effects. (§§ 21002, 21002.1,
    subd. (b); Guidelines, § 15021, subd. (a)(2); Mountain Lion Foundation v. Fish
    & Game Com. (1997) 
    16 Cal.4th 105
    , 134.) An agency may find, however,
    that particular economic, social, or other considerations make the alterna-
    tives and mitigation measures infeasible and that particular project benefits
    outweigh the adverse environmental effects. (§ 21081, subds. (a)(3), (b);
    Guidelines, § 15091, subd. (a)(3).) Specifically, an agency cannot approve a
    project that will have significant environmental effects unless it finds as to
    each significant effect, based on substantial evidence in the administrative
    record, that (1) mitigation measures required in or incorporated into the pro-
    ject will avoid or substantially lessen the significant effect; (2) those
    measures are within the jurisdiction of another public agency and have been
    25
    adopted, or can and should be adopted, by that agency; or (3) specific eco-
    nomic, legal, social, technological, or other considerations make the mitiga-
    tion measures or alternatives identified in the EIR infeasible, and specific
    overriding economic, legal, social, technological, or other benefits outweigh
    the significant environmental effects. (§§ 21081, 21081.5; Guidelines,
    § 15091, subds. (a), (b).) A finding that specific overriding project benefits
    outweigh the significant environmental effects (§ 21091, subd. (b)) is known
    as a statement of overriding considerations. (Guidelines, § 15093.) [¶] . . . [¶]
    “Thus, a public agency is not required to favor environmental protec-
    tion over other considerations, but it must disclose and carefully consider the
    environmental consequences of its actions, mitigate adverse environmental
    effects if feasible, explain the reasons for its actions, and afford the public
    and other affected agencies an opportunity to participate meaningfully in the
    environmental review process. The purpose of these requirements is to en-
    sure that public officials and the public are aware of the environmental con-
    sequences of decisions before they are made.” (Federation of Hillside & Can-
    yon Assns. v. City of Los Angeles (2004) 
    126 Cal.App.4th 1180
    , 1197−1198,
    fns. omitted.)
    Too much should not be expected of an EIR. It is not to have the ex-
    haustive scope of a scientific textbook. “An EIR should be prepared with a
    sufficient degree of analysis to provide decisionmakers with information
    which enables them to make a decision which intelligently takes account of
    environmental consequences. An evaluation of the environmental effects of a
    proposed project need not be exhaustive, but the sufficiency of an EIR is to be
    reviewed in the light of what is reasonably feasible. Disagreement among ex-
    perts does not make an EIR inadequate, but the EIR should summarize the
    main points of disagreement among the experts. The courts have looked not
    26
    for perfection but for adequacy, completeness, and a good faith effort at full
    disclosure.” (Guidelines, § 15151.)
    Much of what goes into an EIR is left to the discretion of the agency
    preparing it. The leading treatise summarizes: “The lead agency has
    discretion to design the EIR and need not conduct every recommended test or
    perform all required research. [Citations.] An EIR is not required to address
    all of the variations of the issues presented. [Citation.] An analysis of every
    permutation of the data is not required.” (Kostka & Zischke, Practice Under
    the California Environmental Quality Act (2d ed. 2022) § 11.28, pp. 11-19−11-
    20; see Laurel Heights Improvement Assn. v. Regents of University of
    California (1988) 
    47 Cal.3d 376
    , 415 (Laurel Heights) [“A project opponent . . .
    can always imagine some additional study or analysis that might provide
    helpful information. It is not for them to design the EIR. That further
    study . . . might be helpful does not make it necessary”].)
    “EIRs shall be written in plain language and may use appropriate
    graphics so that decisionmakers and the public can rapidly understand the
    documents.” (Guidelines, § 15140.) “Placement of highly technical and spe-
    cialized analysis and data in the body of an EIR should be avoided.” (Guide-
    lines, § 15147.) “Drafting an EIR or preparing a negative declaration neces-
    sarily involves some degree of forecasting. While foreseeing the unforeseea-
    ble is not possible, an agency must use its best efforts to find out and disclose
    all that it reasonably can.” (Guidelines, § 15144.)
    The judicial attitude to EIRs is deferential. “A court’s task is not to . . .
    determine who has the better argument when the dispute is whether adverse
    effects have been mitigated or could be better mitigated. We have neither the
    resources nor [the] scientific expertise to engage in such analysis . . . .” (Lau-
    rel Heights, supra, 
    47 Cal.3d 376
    , 393.) It follows that courts “do not require
    27
    technical perfection or scientific certainty.”17 (Sierra Club v. County of Fresno
    (2018) 
    6 Cal.5th 502
    , 515.)
    The scope of judicial scrutiny proceeds along two paths. “ ‘Section
    21168.5 provides that a court’s inquiry in an action to set aside an agency’s
    decision under CEQA “shall extend only to whether there was a prejudicial
    abuse of discretion. Abuse of discretion is established if the agency has not
    proceeded in a manner required by law or if the determination or decision is
    not supported by substantial evidence.” As a result of this standard, “The
    court does not pass upon the correctness of the EIR’s environmental conclu-
    sions, but only upon its sufficiency as an informative document.” [Citation.]’
    [Citation.] ‘We may not set aside an agency's approval of an EIR on the
    ground that an opposite conclusion would have been equally or more reasona-
    ble.’ [Citation.] [¶] ‘An appellate court’s review of the administrative record
    for legal error and substantial evidence in a CEQA case, as in other manda-
    mus cases, is the same as the trial court’s: The appellate court reviews the
    agency’s action, not the trial court’s decision; in that sense appellate judicial
    review under CEQA is de novo.’ [Citation.]” (In re Bay–Delta Etc., supra,
    
    43 Cal.4th 1143
    , 1161–1162.)
    “The agency is the finder of fact and a court must indulge all reasona-
    ble inferences from the evidence that would support the agency’s determina-
    tions and resolve all conflicts in the evidence in favor of the agency’s deci-
    sion. . . . ‘A court’s task is not to weigh conflicting evidence and determine
    who has the better argument when the dispute is whether adverse effects
    17  Indeed, the preeminent CEQA treatise ruefully notes “EIRs
    cannot . . . be perfect.” (Practice under the California Environmental Quality
    Act, supra, § 11.28, p. 11-20.1.)
    28
    have been mitigated or could be better mitigated. We have neither the re-
    sources nor scientific expertise to engage in such analysis, even if the statuto-
    rily prescribed standard of review permitted us to do so.’ [Citation.] ‘[T]he
    relevant inquiry here is not whether the record establishes compliance but
    whether the record contains evidence [the agency] failed to comply with the
    requirements of its . . . regulatory program. In the absence of contrary evi-
    dence, we presume regular performance of official duty. (Evid. Code,
    § 664.)’ ” (Gilroy Citizens for Responsible Planning v. City of Gilroy (2006)
    
    140 Cal.App.4th 911
    , 918–919.)
    Every court “presumes a public agency’s decision to certify the EIR is
    correct, thereby imposing on a party challenging it the burden of establishing
    otherwise.” (Sierra Club v. City of Orange (2008) 
    163 Cal.App.4th 523
    , 530.)
    Conversely, courts refuse to presume administrative error, still less that it is
    prejudicial. (§ 21005, subd. (b).) In fact, “errors in the CEQA . . . process
    which are insubstantial or de minimis are not prejudicial.” (Environmental
    Protection Information Center v. California Dept. of Forestry & Fire Protection
    (2008) 
    44 Cal.4th 459
    , 486; see Neighbors for Smart Rail v. Exposition Metro
    Line Construction Authority (2013) 
    57 Cal.4th 439
    , 463 [“Insubstantial or
    merely technical omissions are not grounds for relief”].)
    Legal error, in the form of failure to comply with CEQA, is reviewed in-
    dependently, but all factual determinations are reviewed according to the
    substantial evidence standard. “The substantial evidence standard is applied
    to conclusions, findings and determinations. It also applies to challenges to
    the scope of an EIR’s analysis of a topic, the methodology used for studying
    an impact and the reliability or accuracy of the data upon which the EIR re-
    lied because these types of challenges involve factual questions.” (Bakersfield
    29
    Citizens for Local Control v. City of Bakersfield (2004) 
    124 Cal.App.4th 1184
    ,
    1198.)
    But a substantial evidence challenge is subject to an important proviso:
    “As with all substantial evidence challenges, an appellant challenging an EIR
    for insufficient evidence must lay out the evidence favorable to the other side
    and show why it is lacking. Failure to do so is fatal. A reviewing court will
    not independently review the record to make up for appellant’s failure to
    carry his burden.” (Defend the Bay v. City of Irvine (2004) 
    119 Cal.App.4th 1261
    , 1266; accord, Sierra Club v. City of Orange, supra, 
    163 Cal.App.4th 523
    , 547.)
    I
    The County’s Compliance With CEQA Was
    Not Abdicated Or Compromised In Or By
    The 1976 And 2007 Judgments
    The most elemental of the Town’s contentions is that the County did
    not proceed in the manner required by CEQA in that the Board did not
    exercise the full measure of statutory discretion, the County believing it had
    no discretion to deviate from the language of the 1976 and the 2007
    Judgments. The County’s concurrence in those judgments was akin to
    “contracting away [its] police powers,” and such abnegation has long been
    prohibited in California. The private plaintiffs make essentially the same
    point: “The County’s chief error was its conclusion that its responsibilities
    under CEQA were subordinate to the stipulated judgments. That is
    incorrect. The stipulated judgments do not excuse the County’s failure to
    fully comply with CEQA.”
    A closely related corollary is that Board abused its discretion when it
    approved the 43 units requested by Martha instead of the “environmentally
    30
    superior” alternative of only 32 units. This in turn blends into the argument
    that the Board’s “finding that the environmentally superior alternative [was]
    infeasible is unsupported by fact and law.”
    Both of these arguments are predicated in whole or in part on the 1976
    and the 2007 Judgments, which are the sun around which the arguments
    revolve. These arguments, if well-founded, would obviate the necessity of
    addressing a greater number of less impactful contentions from the private
    plaintiffs and the Town. Because they are quasi-jurisdictional, we take them
    up first. Our analysis overlaps—and answers—these arguments.
    Language is occasionally found in the briefs insinuating, if not openly
    declaring, that the County refused to exercise the discretion vested in it by
    CEQA; or that it ignored CEQA by approving the project “regardless of the
    environmental impacts”; or that the County stipulated in both the
    Judgements to “override” CEQA. Such expressions may be dismissed as
    hyperbole. It is, we believe, more accurate to say that the Town and the
    plaintiffs are claiming that the federal court judgments amounted to an
    illegal agreement by the County that it would evade or avoid certain parts of
    CEQA. At best, in their view, the Board was following only a truncated
    version of CEQA, one that had a pre-ordained conclusion, namely, that
    Martha would receive official approval for 43 residences. And the reason the
    result was pre-ordained—the reason the Board would never reject Martha’s
    desire to develop the site—was that the Board believed it was constrained by
    the judgments. In short, as shown by the various comments made prior to
    the Board’s final approval, the Board felt it was legally compelled by those
    judgments to approve Martha’s 43-unit proposal, and thus never gave the 32-
    unit alternative a real or fair consideration. In short, the administrative
    proceedings were a lengthy and pointless kabuki performance where every
    31
    official knew what the final result would be.
    This argument, and the subsidiary and corollary claims, are without
    merit.
    “Land use regulations, such as [CEQA], involve the exercise of the
    state’s police power [citation], and it is settled that the government may not
    contract away its right to exercise the police power in the future.” (Avco
    Community Developers, Inc. v. South Coast Regional Com. (1976) 
    17 Cal.3d 785
    , 800; see Mission Oaks Ranch, Ltd. v. County of Santa Barbara (1998)
    
    65 Cal.App.4th 713
    , 723 [“CEQA confers the duty upon the local lead agency
    to produce an adequate EIR” and this “statutory obligation[] may not be the
    consideration for a contract or promise, nor may the County bargain away its
    constitutional duty to regulate development”]; Alameda County Land Use
    Assn. v. City of Hayward (1995) 
    38 Cal.App.4th 1716
    , 1724, [“a local
    government may not contract away its right to exercise its police power in the
    future, and land use regulations involve the exercise of police power”].)
    As most emphatically and expansively put by our Supreme Court:
    “ ‘The police power being in its nature a continuous one, must ever be reposed
    somewhere, and cannot be barred or suspended by contract or irrepealable
    law. It cannot be bartered away even by express contract.’ [Citation.] It is to
    be presumed that parties contract in contemplation of the inherent right of
    the state to exercise unhampered the police power that the sovereign always
    reserves to itself for the protection of peace, safety, health and morals. Its
    effect cannot be nullified in advance by making contracts inconsistent with
    its enforcement.” (Mott v. Cline (1927) 
    200 Cal. 434
    , 446.) This is not a
    California peculiarity, but a national principle. (See, e.g., Sanitary District of
    Chicago v. United States (1925) 
    266 U.S. 405
    , 427 and decisions cited [“A
    state cannot estop itself by grant or contract from the exercise of the police
    32
    power”] (Holmes, J.).
    Although the point has never been authoritatively established by a
    California court, we assume that another means of nullification that would
    not be allowed is a claim of ostensible compliance with a settlement
    agreement reached in federal litigation. (See Summit Media LLC v. City of
    Los Angeles (2012) 
    211 Cal.App.4th 921
     [settlement agreement and
    stipulated judgment of state litigation held improper curtailment of land use
    regulations]; Trancas Property Owners Assn. v. City of Malibu (2006)
    
    138 Cal.App.4th 172
     [settlement agreement of state litigation between
    developer and municipality held improper surrender of zoning power];
    108 Holdings, Ltd. v. City of Rohnert Park (2006) 
    136 Cal.App.4th 186
    [settlement agreement and stipulated judgment of state litigation between
    developer and municipality held not improper surrender of police power];
    Santa Margarita Area Residents Together v. San Luis Obispo County Bd. of
    Supervisors (2000) 
    84 Cal.App.4th 221
     [mediation agreement upheld as not
    surrendering county zoning power]; cf. League of Residential Neighborhood
    Advocates v. City of Los Angeles (9th Cir. 2007) 
    498 F.3d 1052
    , 1055 [“A
    federal consent decree or settlement cannot be a means for state officials to
    evade state law”].)
    It would not be accurate to say that the County—meaning the Board—
    failed to exercise any discretion or completely refused to comply with CEQA
    in any and all ways. The history of proceedings instantly and decisively
    refutes the notion. It was implicit in the 1976 Judgment, and explicit in the
    2007 Judgment, that an EIR would be prepared. As already shown, an EIR
    was prepared, and went through three drafts (see fn.6, ante) and extensive
    revision before it was finally certified. The EIR is almost 850 pages in
    33
    length.18 It clearly represents a considerable expenditure of both time and
    money, and not a pro forma exercise. It is utterly at odds with the conduct of
    a public entity that believed itself free to blow off CEQA.
    Then there is the lengthy administrative process attending the EIR. As
    summarized by Martha: “This process involved extensive public input and
    participation, including multiple Planning Commission meeting[s] and four
    public hearings before the Board prior to approval. At various times during
    this process, the Board requested additional information regarding the
    sufficiency of the EIR, feasibility of mitigation, and the layout of the proposed
    Project. When it finally acted, the Board made the required findings;
    confirmed that it exercised its independent judgment in approving the
    Project, and noted that it retained full discretion to consider and condition
    subsequent phases of the development process. Moving forward, in phase
    two[19] . . . , the County retains discretion to shape the contours of the
    Project.” To this we add that the Board had aspects of the project examined
    by additional agencies (i.e., the Marin Municipal Water District, the Tiburon
    Fire Protection District, and, counting just the years after the draft EIR was
    finished, administrative proceedings took more than six years. If the Board
    truly felt itself free to ignore CEQA, it certainly would have felt itself free of
    any need to go through such a protracted charade.
    Martha, joined by the County, posits an alarming implication to the
    arguments now pressed by the Town and the private plaintiffs: “On its face,
    18 “The text of draft EIRs should normally be less than 150 pages and
    for proposals of unusual scope or complexity should normally be less than 300
    pages.” (Guidelines, § 15141.)
    19According to Martha, phase two “would include a precise
    development plan and a tentative subdivision map.”
    34
    the claim that CEQA somehow displaces the specific provisions of two
    Federal Judgments is baseless. CEQA is not nearly so inflexible. Rather, it
    recognizes that the scope of environmental review must be commensurate
    with an agency’s retained discretionary authority, including any limitations
    imposed by legal obligations. Petitioners’ novel framework, under which
    longstanding legal obligations would become unenforceable when subject to
    environmental review, would turn California law on its head.”
    “CEQA . . . recognizes that an agency’s discretion is limited by its own
    legal obligations. Accordingly, where a legal obligation limits an agency’s
    discretion, the scope of environmental review likewise is limited. (See, e.g.,
    Sequoyah Hills Homeowners Association v. City of Oakland (1993)
    
    23 Cal.App.4th 704
    , 714−716.) This is also consistent with CEQA’s
    requirement that an agency exercise its discretionary powers in a manner
    ‘consistent with express or implied limitations provided by other laws.’
    (Guidelines, § 15040, subd. (e) . . . .) Where a lead agency’s discretion already
    is limited by legal obligations, therefore, the scope of environmental review
    adjusts in relation to the amount of discretion. . . .
    “Accordingly, an EIR must reflect any applicable legal obligations that
    limit the agency’s discretionary authority, and thus the scope of review. And
    while CEQA imposes a duty on lead agencies to avoid or mitigate significant
    environmental impacts caused by projects, such duty exists only to the extent
    feasible. (§§ 21002, 21002.1, subd. (b)[20] . . . .) Mitigation measures that
    20  “The Legislature finds and declares that it is the policy of the state
    that public agencies should not approve projects as proposed if there are
    feasible alternatives or feasible mitigation measures available which would
    substantially lessen the significant environmental effects of such projects,
    and that the procedures required by this division are intended to assist public
    agencies in systematically identifying both the significant effects of proposed
    projects and the feasible alternatives or feasible mitigation measures which
    35
    conflict with legal obligations are legally infeasible and ‘need not be proposed
    or analyzed.’ (Guidelines § 15126.4, subd. (a)(5); see also § 21004.)
    Alternatives that conflict with obligations also are legally infeasible and need
    not be analyzed. (Guidelines § 15126.6, subd. (a) [‘An EIR is not required to
    consider alternatives which are infeasible . . . ’].)
    “CEQA also gives lead agencies the authority to approve a project
    notwithstanding certain environmental impacts if: (1) it is not feasible to
    lessen or avoid the significant effects . . . and (2) the identified benefits of the
    project outweigh the unavoidable, significant environmental impacts
    (§ 21081[21] . . . ).”
    will avoid or substantially lessen such significant effects. The Legislature
    further finds and declares that in the event specific economic, social, or other
    conditions make infeasible such project alternatives or such mitigation
    measures, individual projects may be approved in spite of one or more
    significant effects thereof.” (§ 21002.)
    “In order to achieve the objectives set forth in Section 21002, the
    Legislature hereby finds and declares that the following policy shall apply to
    the use of environmental impact reports prepared pursuant to this division:
    [¶] . . . [¶] (b) Each public agency shall mitigate or avoid the significant
    effects on the environment of projects that it carries out or approves
    whenever it is feasible to do so. [¶] (c) If economic, social, or other
    conditions make it infeasible to mitigate one or more significant effects on the
    environment of a project, the project may nonetheless be carried out or
    approved at the discretion of a public agency if the project is otherwise
    permissible under applicable laws and regulations.” (§ 21002.1.)
    “ ‘Feasible’ means capable of being accomplished in a successful
    manner within a reasonable period of time, taking into account economic,
    environmental, social, and technological factors.” (§ 21061.1.) The
    Guidelines add “legal” as another factor. (Guidelines § 15364.)
    21 “Pursuant to the policy stated in Sections 21002 and 21002.1, no
    public agency shall approve or carry out a project for which an environmental
    impact report has been certified which identifies one or more significant ef-
    fects on the environment that would occur if the project is approved or carried
    out unless both of the following occur: [¶] (a) The public agency makes one
    36
    Having already seen that the Board cannot be accused of ignoring
    CEQA, it now appears that the Board was proceeding along lines that are in
    fact expressly embedded in CEQA. A statement of overriding
    considerations—which is the finding described in subdivision (b) of section
    21081—is to be used in situations where the public agency deems a project
    sufficiently important or desirable for reasons that override the normal
    obligation to mitigate significant environmental effects. One of those
    statutory reasons allows for considerations, conditions, or factors that are
    “legal.” (§§ 21081, subds. (a)(3), (b), 21002.1, subd. (b); Guidelines § 15364.)
    Martha has seized on the essential point. This is not a situation where
    a government entity has agreed to exempt a class of applicants or has quit a
    particular regulatory field. (Cf. County Mobilehome Positive Action Com.,
    Inc. v. County of San Diego (1998) 
    62 Cal.App.4th 727
     [County improperly
    enacted ordinance declaring it would not enact a type of land use regulation
    for 15 years].) The County did not condition the exercise of its authority upon
    the agreement of other governmental entities, thus giving those entities
    actual control or veto power. (County of Ventura v. City of Moorpark (2018)
    
    24 Cal.App.5th 377
    ; Alameda County Land Use Assn. v. City of Hayward
    (1995) 
    38 Cal.App.4th 1716
    .) It did not “agree to refrain from legislating in
    or more of the following findings with respect to each significant effect:
    [¶] . . . [¶]
    (3) Specific economic, legal, social, technological, or other considera-
    tions, including considerations for the provision of employment opportunities
    for highly trained workers, make infeasible the mitigation measures or alter-
    natives identified in the environmental impact report.
    (b) With respect to significant effects which were subject to a finding
    under paragraph (3) of subdivision (a), the public agency finds that specific
    overriding economic, legal, social, technological, or other benefits of the pro-
    ject outweigh the significant effects on the environment.” (§ 21081.)
    37
    the future on the matters that are the subject of the Stipulated Judgment[s].”
    (108 Holdings, Ltd. v. City of Rohnert Park, supra, 
    136 Cal.App.4th, 186
    ,
    195.) The County did not agree to approve a project it knew was
    incompatible with its general plan (Midway Orchards v. County of Butte
    (1990) 
    220 Cal.App.3d 765
    ), or agree to give a developer an exemption from
    zoning laws, as occurred in Summit Media LLC v. City of Los Angeles, 
    supra,
    211 Cal.App.4th 921
    . It is not a situation where an otherwise valid
    agreement has been rendered invalid by subsequently enacted legislation.
    What we have here is simply a single project with a particular set of
    attending circumstances, one of which is concluded litigation. There is
    nothing intrinsically suspect about a governmental entity settling a lawsuit
    brought by a property developer. Quite the contrary, the law favors and
    encourages the settlement of legal disputes. (E.g., Salmon Protection &
    Watershed Network v. County of Marin (2012) 
    205 Cal.App.4th 195
    , 201.)
    Indeed, the practice as applied to property development disputes is common
    and has been approved by our Supreme Court. (Pardee Construction Co. v.
    City of Camarillo (1984) 
    37 Cal.3d 465
    ; accord, 108 Holdings, Ltd. v. City of
    Rohnert Park, supra, 
    136 Cal.App.4th 186
    , 195, 197.) Moreover, although it
    may look a bit like putting the cart before the horse, a lead agency can
    commit to a project before completing a thorough environmental review.
    (Saltonstall v. City of Sacramento (2015) 
    234 Cal.App.4th 549
     (Saltonstall).)
    Conspicuously absent from the briefs of the Town and the private
    plaintiffs is discussion about the actual legal force of the federal court
    judgments, and the scope of what may be properly settled. By focusing on the
    issue of the 32-unit alternative, the Town and the plaintiffs plainly believe
    that the 1976 and 2007 judgments could and should have been ignored. In
    other words, the judgments were of no consequence whatsoever, except as a
    38
    target for opprobrium. But this current attitude is belied by their past
    conduct.
    The 1976 Judgment was not an abandoned derelict that suddenly
    loomed out of the fog. The efforts of the Town and the private plaintiffs to
    have it vacated demonstrate that they knew it was a dagger pointed at the
    heart of their campaign to defeat entirely any development of the site or,
    failing that, to minimize the extent of any development.
    However, the judgments clearly did exist and did have consequence.
    The doctrines of res judicata or collateral estoppel may be put to one side.22
    The language of the judgments has been quoted and that language requires
    no elucidation. Twice, the County pledged its name and good faith in
    accepting that Martha would be allowed to build at least 43 units on lots of at
    least one-half acre. To judge from the County Counsel’s remarks to the
    Board, it may safely be assumed that the County acceded to the 1976
    Judgment in recognition that its 1974 re-zoning attempt exposed it to
    significant monetary liability. Certainly, no one would question Martha’s
    natural inclination to take the judgment at face value, believing the County’s
    word was good. (Cf. “If parties cannot rely on a stipulated judgment, there is
    no certainty in any document.” (Pardee Construction Co. v. City of Camarillo,
    supra, 
    37 Cal.3d 465
    , 473 (dis. opn. of Mosk, J.).)
    22   The trial court also concluded that the Town and the private
    plaintiffs were barred by collateral estoppel to question the 2007 Judgment, a
    conclusion both contend was erroneous. As we reject the merits of their
    substantive challenge, we have no need to consider whether they are
    precluded from presenting that challenge. For the same reason, we do not
    examine Martha’s argument that if plaintiffs and the Town are making
    “CEQA challenges to the Federal Judgments” (italics added), they are
    precluded from doing so because such claims are untimely (§ 21167, subd. (a)
    [180 days to commence action]), and are thus time-barred.
    39
    The 2007 Judgment added only one matter to the issues addressed in
    the 1976 Judgment—the County’s acknowledgement that “any development
    alternative, or any proposed mitigation measure, which does not accord
    Martha all rights to which it is entitled under the 1976 Judgment is legally
    infeasible.” Yet this addition did not change the essence of the County’s
    CEQA responsibilities.
    The preparation of a “full-scale” EIR has already been mentioned.
    Almost all of the details—in the language of the 1976 Judgment, “including
    but not limited to, esthetics, protection of ridge lines, environmental factors,
    traffic generation and community services impact” (see fn. 3 and
    accompanying text, ante)—were left to the administrative process. The
    ensuing administrative proceedings were protracted, laborious, and anything
    but rushed, perfunctory, or short-circuited.
    Granted, the 1976 and the 2007 Judgments did have the effect of
    deciding what was for Martha’s opponents the most important issue, namely,
    whether they could continue to prevent any and all development of the site.
    That decision was not the result of haste or secrecy.
    CEQA is in large part designed to ensure political responsibility. As
    the late Presiding Justice Sills vividly put it, CEQA provides “protections . . .
    to expose elected decisionmakers to the political consequences of any decision
    to certify an EIR. There is a sort of grand design in CEQA: Projects which
    significantly affect the environment can go forward, but only after the elected
    decisionmakers have their noses rubbed in those environmental effects, and
    vote to go forward anyway.” (Vedanta Society of So. California v. California
    Quartet, Ltd. (2000) 
    84 Cal.App.4th 517
    , 530; see Tomlinson v. County of
    Alameda (2012) 
    54 Cal.4th 281
    , 286 [a central purpose of CEQA is to
    “ ‘[d]isclose to the public the reason why a government agency approved the
    40
    project in the manner the agency chose,’ ” quoting Guidelines § 15002,
    subd. (a)(4)]; Laurel Heights, supra, 
    47 Cal.3d 376
    , 392 [“the EIR . . . is a
    document of accountability” and “the public will know the basis on which its
    responsible officials either approve or reject environmentally significant
    action . . . . The EIR process protects not only the environment but also
    informed self-government”].)
    Our decision in Sequoyah Hills Homeowners Association v. City of
    Oakland, supra, 
    23 Cal.App.4th 704
    , is unusually instructive. There, a local
    agency felt it was compelled by state law to approve a 45-lot residential
    project because “the City Council determined that Government Code section
    65589.5, subdivision (j), prevented it from requiring the developer to lower
    the project density.” (Id. at p. 712.) We held the council did not abuse its
    discretion when it concluded that decreased density alternatives—including
    one for 36-residences—were legally infeasible. (Id. at pp. 714−716.)
    If a state statute can render less dense alternatives legally infeasible,
    no reason in law or logic prevents a final federal court judgment from having
    the same impact.
    Our decision in Sequoyah Hills Homeowners Association also prompts a
    cautionary observation. Of course, a local agency cannot simply intone the
    words “legally infeasible” and expect that will be the end of the matter. What
    is “legally infeasible” clearly smacks of a legal conclusion, a subject courts are
    prone to reserve to themselves. (See City of Marina v. Board of Trustees of
    California State University (2006) 
    39 Cal.4th 341
    , 355−356; but cf. id. at
    p. 368 [“If we agreed with the Trustees that mitigation were [legally]
    infeasible for the reasons given in the findings, . . . we would give much
    deference to the Trustees’ weighing of the project’s benefits against the
    remaining environmental effects”].) In short, the local agency that labels an
    41
    alternative “legally infeasible” should not be surprised if that conclusion is
    challenged in court. (See id. at pp. 356−362, where the Supreme Court
    concluded the lead agency had erroneously determined that mitigation was
    legally infeasible on the ground that the agency was legally prohibited from
    contributing to the mitigation costs; San Franciscans for Livable
    Neighborhoods v. City and County of San Francisco (2018) 
    26 Cal.App.5th 596
    , 636−637 [municipal infeasibility determination supported by substantial
    evidence].) Here, however, the Board’s conclusion that the stipulated
    judgments made it “legally infeasible” to approve less than 43 residential lots
    has survived scrutiny by state and federal courts.
    With this conclusion, the subsidiary arguments fall accordingly.
    Start with the plaintiffs’ argument that “A federal court stipulated
    judgment cannot override valid state laws in the absence of findings that a vi-
    olation of federal law has occurred and that overriding state law is required
    to remedy the violation,” and no such findings were made in connection either
    the 1976 or the 2007 judgments. However, such a finding has a condition
    precedent: “Before approving any settlement agreement that authorizes a
    state or municipal entity to disregard its own statutes in the name of federal
    law, a district court must find that there has been or will be an actual viola-
    tion of that federal law.” (League of Residential Neighborhood Advocates v.
    City of Los Angeles, 
    supra,
     
    498 F.3d 1052
    , 1058.) Here, the district court
    never made a finding that federal law was, or was about to be, broken. More-
    over, as already shown, the court in 2018 made clear beyond any doubt that it
    did not read the judgments as requiring violation either state law in general
    or CEQA in particular.
    Next, relying on Keith v. Volpe (9th Cir. 1997) 
    118 F.3d 1386
    , the Town
    and the private plaintiffs assert that “a stipulated judgment that purports to
    42
    compel a violation of state law, but does not identify any violation of federal
    law that warrants overriding state law, will not be enforced by a [federal]
    court in a subsequent proceeding.” Again, the condition precedent is absent:
    the district court in 2018 clearly determined that the stipulated judgments
    did not “purport[] to compel a violation of state law,” but were on the contrary
    respectful of preserving state law.
    Then there is the Town’s claim that the ordinary presumption that
    “official duty has been regularly performed” (Evid. Code, § 664) should be
    deemed rebutted for purposes of our review, obliging us to adopt a more
    critical scrutiny. The Board’s conclusion, however reluctant, that it was
    bound by the stipulated judgments, does not demonstrate that the
    supervisors were not regularly performing their official duty. Recognizing
    unpleasant realities is often the essence of official duty for elected office-
    holders.
    Finally there is the private plaintiffs’ claim that the “EIR findings are
    not supported by substantial evidence.” Actually, they aim their fire at only
    one finding, namely, the finding required by CEQA that when certifying an
    EIR the lead agency must make a finding that the certification “reflects the
    independent judgment of the lead agency.” (§ 21082.1, subd. (c)(3).) The
    plaintiffs reason that unless the Board could ignore the stipulated judgments,
    it could not exercise an “independent judgment.”
    To state this conclusion is to refute it. If a lead agency could only
    exercise independent judgment by disregarding a binding final judgment, so
    equally could it be said that the agency could only exercise a true
    independent judgment if it was free to disregard provisions of CEQA that
    prove inconvenient.
    In conclusion, as already noted, a central purpose of CEQA is to
    43
    “ ‘[d]isclose to the public the reasons why a governmental agency approved
    the project in the manner the agency chose.’ ” (Tomlinson v. County of
    Alameda, supra, 
    54 Cal.4th 281
    , 286) The draft EIR did that, in spades.
    Some members of the Board clearly felt they had been maneuvered into
    approving the project, but the means of the maneuver were on the record, in
    the EIR, and clearly a matter of common knowledge. But not liking the deal
    struck in 1976 and again in 2007 was no ground for repudiating it.
    II
    The EIR’s Project Description
    We next take up a contention of the private plaintiffs because it is the
    only true response to the County’s argument that the Board was correctly op-
    erating with a reduced scope of its normal discretion under CEQA. The
    plaintiffs’ response comes in context of their attack on a part of the EIR that
    seldom generates controversy.
    “A [draft] EIR must include a project description. [Citation.] The pro-
    ject description must contain (1) the precise location and boundaries of the
    proposed project; (2) a statement of the objectives sought by the proposed pro-
    ject, including the underlying purpose; (3) a general description of the pro-
    ject’s technical, economic, and environmental characteristics; and (4) a state-
    ment briefly describing the intended uses of the EIR. (Guidelines, § 15124.)
    The description should not, however, ‘supply extensive detail beyond that
    needed for evaluation and review of the environmental impact.’ [Citation.]
    The description must include the entirety of the project, and not some smaller
    portion of it. [Citations.]
    “ ‘[A]n accurate, stable and finite project description is the sine qua non
    of an informative and legally sufficient EIR.’ [Citation.] ‘Only through an ac-
    curate view of the project may affected outsiders and public decision-makers
    44
    balance the proposal’s benefit against its environmental cost, consider mitiga-
    tion measures, assess the advantage of terminating the proposal . . . and
    weigh other alternatives in the balance.’ [Citation.] A project description
    that gives conflicting signals to decision makers and the public about the na-
    ture of the project is fundamentally inadequate and misleading. [Citation.]
    Further, ‘[a] curtailed, enigmatic or unstable project description draws a red
    herring across the path of public input.’ [Citation.] ‘Whether an EIR cor-
    rectly describes a project is a question of law, subject to de novo review.’ ”
    (South of Market Community Action Network v. City and County of San Fran-
    cisco (2019) 
    33 Cal.App.5th 321
    , 332.)
    The private plaintiffs assert that the EIR’s project description was “un-
    duly narrow” and this “caused the County to act inconsistently with CEQA
    and other state law.” Citing North Coast Rivers Alliance v. Kawamura (2015)
    
    243 Cal.App.4th 647
    , the plaintiffs reason: “As in North Coast Rivers Alli-
    ance . . . , the County’s unlawfully-truncated environmental review process
    began at its very inception—with an impermissible and ‘artificially narrow’
    Project description in the DEIR [Draft EIR]. According to the County’s find-
    ings the purpose of the EIR was to conduct an ‘analysis of the 1976 Court
    Judgment that 43 minimum half-acre lots be approved on the subject prop-
    erty.’ Thus, the opening lines of the DEIR stated that [Martha’s] land use ap-
    plication was filed ‘in reliance’ on the stipulated judgments, ‘which deter-
    mined that the development of the project site with a minimum of 43 single-
    family residential units on minimum one-half acre lots would be consistent
    with the goals of the Marin Countywide Plan.’ . . . [¶] That artificially nar-
    row Project description[] caused the County to act inconsistently with state
    law by refusing to exercise its discretion and police powers and failing to com-
    ply with CEQA.”
    45
    It is apparent that this argument is not really directed at the project
    description that is in the EIR, but is simply a variation on the theme that the
    County “abdicated” its responsibilities under CEQA by complying with the
    stipulated judgments, an argument we have already rejected. Here, too, the
    private plaintiffs assume that the judgments can be put to one side, that they
    have no validity, that they should have been ignored. That assumption is the
    predicate of this argument. It has already been shown that the predicate is
    unfounded. The latest argument falls with the predicate.
    We add only a few brief comments about the actual projection in the
    Draft EIR.
    As already noted, the project description need only disclose “the nature
    of the project” (South of Market Community Action Network v. City and
    County of San Francisco, supra, 
    33 Cal.App.5th 321
    , 332) and its “main
    features.” (Dry Creek Citizens Coalition v. County of Tulare (1999)
    
    70 Cal.App.4th 20
    , 28.) In addition , “[t]he degree of specificity required
    depends on the type of [the] project.” (Ibid.)
    Here, the type and nature of the project are unmistakably
    straightforward—the construction of 43 suburban single-family residences.
    The main features, that is, “the project’s technical, economic, and
    environmental characteristics” (Guidelines, § 15124, subd. (c)), are generally
    what one would expect from constructing a suburban housing subdivision.
    The only significant wrinkle are some topographical features, also to be
    expected from building houses on a mountain. The relevant Guideline
    requires that “[t]he precise location and boundaries of the proposed project
    shall be shown on a detailed map, preferably topographic. The location of the
    project shall also appear on a regional map” (Guidelines, § 15124, subds. (a)
    & (c)), which was done here. It also requires a “general description of the
    46
    project’s technical, economic, and environmental characteristics, considering
    the principal engineering proposals” (id, subd. (c)), which was also done—
    indeed, with considerable detail.23 Beyond that, CEQA allows for
    environmental effects which are based on, or related to, topography or other
    physical features of the project site, to be addressed elsewhere in the EIR.
    The CEQA requirement of only a “general description” that eschews
    “extensive detail” is hard to square with the project description in the final
    Draft EIR.24 As best we can tell, no one ever complained that the project
    description had significantly more detail than required. It may reflect
    nothing more than the length of this dispute, and the passions involved, in
    the age of word processing. However, given the voluminous detail, an actual
    attack on the adequacy of the project description would almost certainly
    qualify as frivolous.
    23  The number of residential units was provided, together with lot
    sizes and locations. The same was true for the parcels comprising “public
    open space and trails.” None of the houses could exceed two stories and
    “should be designed to visually blend with the surrounding topography to
    minimize the prominence of structural height, bulk, and massing as viewed
    from surrounding properties and roadways.” Fencing and exterior lighting
    would be minimized, and night lighting for recreational purposes would be
    prohibited. New paved driveways, and the number of “off-street parking
    spaces” for each lot are described. Sewers and the “Grading and Drainage
    Plan plus a Stormwater Control Plan” are discussed, as are “Erosion Control”
    and “landslide Repair.” Three pages were devoted to “Grading” and
    “Retaining Walls.”
    24 The Project Description was 22 pages in the 2001 DEIR, but it
    increased to 34 pages in the 2011 final DEIR.
    It is one of the ironies of CEQA in operation that the EIR, prepared
    and paid for by the developer of the proposed project, ends up being more
    comprehensive than absolutely required by CEQA. The very completeness of
    a draft EIR may simply produce more targets for opponents of the project to
    attack.
    47
    III
    The EIR’s Analysis Of Reasonable Alternatives
    Was Not Deficient
    The Town and the private plaintiffs tell us that the County abused its
    discretion by rejecting the 32-unit alternative as inconsistent with the Judg-
    ments. The plaintiffs further insist that “the County abused its discretion by
    limiting its selection and consideration of alternatives in light of the sup-
    posed limitations of the stipulated judgments.”
    This is yet another way attempt to evade the stipulated judgments. It
    too will fail.
    To reiterate, the statutory command is that “it is the policy of the state
    that public agencies should not approve projects as proposed if there are
    feasible alternatives . . . which would substantially lessen the significant
    environmental effects of such projects, . . . [T]he procedures required by this
    division are intended to assist public agencies in systematically
    identifying . . . the feasible alternatives . . . which will avoid or substantially
    lessen such significant effects.” (§ 21002.) However, as already established,
    “feasible” is a flexible concept that can outrank and overpower what might
    otherwise qualify as alternatives to the proposed project.
    “The lead agency is responsible for selecting a range of potential
    alternatives for examination and must publicly disclose its reasoning for
    selecting those alternatives.” (Guidelines, §§ 15126.6, subd. (a).) “There is no
    ironclad rule governing the nature or scope of the alternatives to be discussed
    other than the rule of reason.” (Ibid.) The “rule of reason” requires an EIR
    “to set forth only those alternatives necessary to permit a reasoned choice.”
    (Id. § 15126.6, subd. (f); Citizens of Goleta Valley v. Board of Supervisors
    (1990) 
    52 Cal.3d 553
    , 566 [“CEQA establishes no categorical legal imperative
    48
    as to the scope of alternatives to be analyzed in an EIR. Each case must be
    evaluated on its facts, which in turn must be reviewed in light of the
    statutory purpose”]; California Native Plant Society v. City of Santa Cruz
    (2009) 
    177 Cal.App.4th 957
    , 999 [“While it is up to the EIR preparer to
    identify alternatives as potentially feasible, the decision-making body ‘may or
    may not reject those alternatives as being infeasible’ when it comes to project
    approval. . . . Like mitigation measures, potentially feasible alternatives ‘are
    suggestions which may or may not be adopted by the decisionmakers’ ”].)
    A “feasible” alternative is one that could accomplish “most of the basic
    objectives of the project but would avoid or substantially lessen any of the sig-
    nificant effects.” (Guidelines § 15126.6, subd. (a).) We will uphold an
    agency’s choice of alternatives unless they “are manifestly unreasonable
    and . . . do not contribute to a reasonable range of alternatives.” (Federation
    of Hillside & Canyon Associations v. City of Los Angeles (2000)
    
    83 Cal.App.4th 1252
    , 1265.)
    We confess to a slight puzzlement at all the sound and fury attending
    the 32-unit alternative because it could legitimately have been omitted from
    the EIR.25 From the principle that an EIR need only discuss alternatives
    25   Even so, there does appear to be an explanation for why the 32-unit
    alternative was included—because the Town had agreed not to oppose
    construction in that number. A letter from the Town to the County has this:
    “In 2009, after long and careful discussion the Town and the Martha
    Company entered into a Memorandum of Understanding . . . in which they
    agreed to support a reduced density 32-unit alternative to the 43-unit
    project. . . . [T]he Town committed to support that alternative.” This
    agreement is mentioned in the final responses to the Draft EIR.
    Apart from Judge Chou’s reference to it as having “expired,” there is
    nothing in the record explaining why the Town’s agreement with Martha was
    taken off the table, and there is nothing in the Town’s briefing hinting at any
    49
    that are feasible, it follows that “infeasible alternatives that do not meet pro-
    ject objectives need not be studied even when such alternatives might be im-
    agined to be environmentally superior.” (Saltonstall, supra, 
    234 Cal.App.4th 549
    , 576.) With the County legally bound to a 43-unit minimum, any alterna-
    tive with fewer units would, as already shown, be legally infeasible. It was
    not an abuse of discretion for the Board not to choose a legally infeasible al-
    ternative.
    IV
    The Board’s Findings That Certain Significant Environmental
    Impacts Could Be Mitigated
    A.     Mitigation Of Traffic Safety
    According to the Town, “No evidence supports the County’s finding that
    the project’s impact on traffic safety in Town neighborhoods will be mitigated
    to a less-than-significant level.” The Town also objects to it being required to
    shoulder the burden of making the mitigation measure feasible by changing
    its (the Town’s) law.26 This is what the County decided:
    “IMPACT 5.1-10: Project Traffic Added to Lyford’s Cove/Old
    Tiburon and Hill Haven Neighborhood Streets
    “—Accident Records, Emergency Access and Traffic Flow
    connection with the number 32. The answer may be simple arithmetic—why
    should Martha settle for 32-units when it could have 43?
    26  The Town argues that “because the County failed to address
    additional mitigation measures proposed during the administrative process,
    the County violated CEQA.” This single sentence merits no further mention.
    (See Cal. Rules, of Court, rule 8.204(a)(1)(B)-(C) [“Each brief must: [¶] . .
    . [¶] State each point under a separate heading or subheading summarizing
    the point, and support each point by argument and, if possible, by citation of
    authority; and [¶] Support any reference to a matter in the record by a
    citation to the volume and page number of the record where the matter
    appears”].)
    50
    “Facts:
    “The EIR found that long-term project traffic (all post-construction
    traffic) added to Lyford’s Cove/Old Tiburon and Hill Haven neighborhood
    streets would not result in significant impacts to existing or future roadway
    capacity. However, emergency vehicles and residents of these existing
    neighborhoods would be exposed to more frequent unpredictable traffic flow
    and intermittent safety hazards when traveling on the narrow, winding
    residential streets. This is a potentially significant impact. . . .
    “CEQA § 21081(a) Finding:
    “Finding # 2: Another public agency can and should mitigate the
    impact.
    “Evidence Supporting the Finding:
    “The residential streets in the Lyford’s Cove/Old Tiburon and Hill
    Haven neighborhoods are under the jurisdiction of the Town of Tiburon.
    Mitigation Measure 5.1-10 recommends the Town prohibit the parking of
    dumpsters along Lyford’s Cove/Old Tiburon and Hill Haven neighborhood
    streets to reduce the interruption of traffic flow on a regular basis and during
    an emergency. This would effectively prohibit the parking of dumpsters
    along streets narrower than 28 feet wide. Tiburon’s implementation of
    mitigation measure 5.1-10 would reduce the impact to less than significant.
    “Adopted Mitigation Measure:
    “5.1-10 prohibits parking dumpsters along Lyford’s Cove/Old Tiburon
    and Hill Haven neighborhood streets.
    “The Board hereby adopts and makes a condition of approval
    Mitigation Measure 5.1-10.”
    “IMPACT 5.1-13: Construction Traffic Impacts.
    “Facts:
    51
    “The EIR found that the Project could add significant amounts of
    construction traffic to Paradise Drive, adding to the existing sight distance
    safety concerns at the Paradise Drive/Forest Glen Court intersection, and
    raising safety concerns about construction truck use of Paradise Drive
    (related to tight curves and narrow segments of the roadway where large
    trucks would wander into the opposite direction travel lane). Construction
    trips also would damage pavement on affected roads and have the potential
    to disrupt the residential environment. . . .
    “CEQA § 21011(a) Finding:
    “Finding # 1: This impact is mitigated to a less-than-significant level.
    “Evidence Supporting the Finding:
    “The conditions of master plan approval require the submittal of a
    Construction Management Plan with the precise development plan/tentative
    map application. The Construction Management Plan shall:
    “Prohibit construction vehicles/activity within existing residential
    neighborhoods except as necessary for Lots 1, 2, and 3.
    “Control all uses of the proposed temporary construction access
    roadway as a constant safety precaution.
    “Implement all project traffic control elements including consolidation
    of approved routes, informing residents of construction activities and
    duration, and using flag persons and flag trucks along construction routes.
    “Initial improvements to Paradise Drive and Forest Glen Court to
    enhance traffic safety during construction.
    “Include provisions in contractors’ construction contracts to prohibit
    parking of construction vehicles anywhere other than on-site.
    “Precautions in the event of construction traffic queuing on Paradise
    Drive.
    52
    “Repair of any deteriorated pavement along Tiburon Drive-Paradise
    Drive identified by a before and after pavement evaluation program.
    “Obtain County and Town approval for construction truck haul routes
    and establish haul truck hours for project construction traffic.
    “The conditions of master plan approval also require the applicant
    implement all measures regarding the construction access road as proposed
    by Ghilotti Construction Company and Red Horse Constructors,
    Incorporated, including:
    “Installation of some type of barrier (Temporary K-Rail, Metal Beam,
    Guard Rail, etc.) to be securely anchored to the outboard and downward
    edges of all road curves.
    “Provide for the installation of an emergency stop/crash cushion array
    located in the center of the Forest Glen cul-de-sac.
    “One-way radio-controlled access to be maintained during construction
    activities.
    “Erect construction speed limit signs, adopt access protocols and
    emergency vehicle access procedures.
    “Provide a secured and controlled access point to assist in traffic control
    during construction hours and security of the site in off hours.
    “Establish speed limits for construction traffic and penalties for non-
    compliance in contractor contracts.
    “Prohibit construction vehicle queuing in an active travel lane; shoulder
    areas wide enough for stacking of construction traffic shall be provided prior
    to commencement of construction activities.
    “Adopted Mitigation Measures
    “5.1-13(a) requires the applicant to implement all measures regarding
    the construction access road as proposed by Ghilotti Construction Company
    53
    and Red Horse Constructors, Inc., as well as additional safety measures
    provided in the November 17, 2011 W-Trans report.
    “5.1-13(b) requires implementation of the Construction Management
    Plan with certain specified modifications that: (1) prohibit construction
    vehicles/activity within existing residential neighborhoods except as
    necessary access for development of Lots 1, 2, and 3; (2) control all uses of the
    proposed temporary construction access roadway as a constant safety
    precaution; (3) implement all Project traffic control elements; (4) initial
    improvements to Paradise Drive and Forest Glen Court to enhance traffic
    safety during construction; (5) include provisions in contractors’ construction
    contracts to prohibit parking of construction vehicles anywhere other than
    on-site; (6) precautions in the event of construction traffic queuing on
    Paradise Drive; (7) repair of any deteriorated pavement along Tiburon Drive-
    Paradise Drive identified by a before and after pavement evaluation program;
    (8) obtain County and Town approval for construction truck haul routes and
    establish haul truck hours for project construction traffic; (9) establish speed
    limits for construction traffic and strict speed enforcement measures; and
    (10) prohibit construction vehicle queuing in an active travel land; shoulder
    areas wide enough for stacking of construction traffic should be identified
    prior to commencement of construction activity.
    “The Board hereby adopts and makes a condition of approval
    Mitigation Measures 5.1-13(a) and 5.1-13(b).”
    The Town calls this mitigation measure “unenforceable,” “illusory,” and
    supported by no evidence.
    The fact that mitigation must take place in Tiburon is an undeniable
    jurisdictional fact, but not an insurmountable obstacle. CEQA is not blind to
    the possibility of multiple jurisdictions or agencies having some degree of
    54
    involvement or responsibility for a project. Mitigation may be within the
    jurisdiction of another entity, and a project may be approved with a finding
    that a mitigation measure “should be[] adopted” by another entity that has
    exclusive jurisdiction. (§ 21081, subd. (a)(2); City of Marina v. Board of
    Trustees of California State University, supra, 
    39 Cal.4th 341
    , 366;
    Guidelines § 15091, subd. (a)(2).) “[S]peculation a municipality might not
    agree . . . is not sufficient to show the agency violated CEQA by adopting
    [the] mitigation measure.”27 (Neighbors for Smart Rail v. Exposition Metro
    Line Construction Authority, supra, 
    57 Cal.4th 439
    , 466.)
    The EIR makes clear that the streets in question are not your standard
    streets, and why so little could be done to improve matters: “Lyford’s
    Cove/Old Tiburon and Hill Haven neighborhood streets are described . . . as
    narrow and winding. The older streets . . . are less than 24-feet wide. This
    width is not sufficient for two-way traffic if there is on-street parking. Newer
    streets are 24 feet wide, meeting the Town’s minimum standard for public
    residential roads. This width is sufficient for two-way traffic flow with no on-
    street parking, but only minimally adequate for two-way flow with parking
    permitted on one side only. However, if parking is permitted on both sides,
    27  Although the Town asserts “the proposed dumpster ban is not
    enforceable because there is no evidence that the Town will amend its
    existing ordinances—which already subject dumpsters to a permit process,”
    actual legislation is not necessarily contemplated or required. Although the
    language of Impact 5.10 quoted above speaks of the Town “prohibiting”
    dumpsters, such could be administratively accomplished through the
    permitting process.
    At another point in its brief the Town states it “has expressly
    disclaimed any intent to ban street parking or dumpsters in the Lyford’s
    Cove/Old Tiburon and Hill Haven neighborhoods,” but the supporting
    evidence is from Town staff and goes no farther than predicting that official
    action is “unlikely.” Such expressions are hardly a categorical refusal to take
    any positive action, legislative or administrative.
    55
    when cars are parked opposite each other, the 24-foot width is not sufficient
    for two-way traffic flow. At such times the road only accommodates a single
    travel lane (alternating one-way flow). . . . [T]he road deficiencies are well-
    known to residents who must cope with the narrow road widths on a daily
    basis. . . . Residents responding to the Notice of Preparation for this EIR . . .
    cited numerous ongoing problems with access through the existing
    neighborhoods. . . . [¶] At least eight letters detail existing problems
    experienced by residents with homes served by Hill Haven neighborhood and
    Lyford’s Cove/Old Tiburon neighborhood roads. Identified problems include
    existing narrow roads obstructed by maintenance trucks and [trash]
    dumpsters.” (Italics added.)
    This is not an isolated point. Elsewhere in the EIR is this: “For
    example, along a very narrow segment . . . a haul truck and dumpster (about
    ten feet by teen feet in size) were observed parked on-street, reducing the
    road to one narrow lane.” And this: “Keeping all routes unobstructed is
    critical to allow the maximum flow of two-way traffic. This is the reason for
    the Draft EIR mitigation that dumpsters not be placed in the travelway.”
    Most decisively, “There are no other clear solutions.”
    So, the situation appears to be as follows: We are dealing with an area
    with narrow winding streets that are barely able to handle existing traffic.
    The Town concedes in its brief that the existing roads are already
    “insufficient for two-way traffic with parking permitted on one or both sides
    of the street.” The existing roads cannot be widened. For all practical
    purposes, the area is completely developed. Space is at a premium. There
    are no sidewalks. Parking is not entirely prohibited, but the Town is
    attempting to introduce “No Parking” areas, notwithstanding “inconvenience
    to residents who rely on the availability of the on-street parking.” The
    56
    options for mitigation are clearly limited. (Neither the private plaintiffs nor
    the Town suggest a more efficacious alternative.)28 The option of prohibiting
    dumpsters had some public support.
    Although in its brief the Town decries that the County adopted “just
    one measure (MM 5.1-10) to mitigate this significant impact,” this is not
    28  This silence has considerable significance. The leading treatise on
    CEQA summarizes: “An EIR must describe feasible measures that could
    minimize the project’s significant adverse impacts. [Citation.] An EIR may
    decline to propose a mitigation measure that would not effectively address a
    significant impact. [Citation.] An EIR also need not identify and discuss
    mitigation measures that are infeasible. ‘Nothing in CEQA requires an EIR
    to explain why certain mitigation measures are infeasible.’ [Citation.] Nor
    must an EIR analyze in detail mitigation measures it concludes are
    infeasible. . . . [¶] . . . [¶] An EIR must respond to comments making specific
    suggestions for mitigating a significant impact unless the suggested
    mitigation is ‘facially infeasible.’ . . . When comments suggest additional
    mitigation and are supported by expert opinion or technical evidence, the EIR
    must provide a detailed evidence-based response.” (Practice under the
    California Environmental Quality Act, supra, § 14.10, pp. 14-13 –14-14.)
    The Town points to no mitigation measures that it or others
    suggested would reduce the impact of traffic (or the other impacts it claims
    are inadequately mitigated). That means that the mitigation measures
    imposed by the County stand alone, there being no discussion of alternative
    measures that were rejected. The consequence is that parties challenging a
    certified EIR are able to simply say that an adopted mitigation measure is
    ineffective or not good enough. But unless there is a record of alternatives,
    with supporting information showing greater effectiveness, such an approach
    places courts in an uncomfortable if not untenable position. Aware that we
    lack the scientific expertise and are “not to weigh conflicting evidence and
    determine who has the better argument when the dispute is whether adverse
    effects have been mitigated” (Laurel Heights, supra, 
    47 Cal.3d 376
    , 393), how
    do courts evaluate a claim that a mitigation measure is ineffective when
    there is nothing in the record showing the existence of a more effective
    measure? Given the normal appellate presumptions of regularity, plus
    deference to the local agency’s decision, how are courts supposed to determine
    whether a measure will not truly mitigate, or whether other measures would
    better mitigate?
    57
    entirely accurate. Mitigation Measures 5.1-13(a) and 5.1-13(b), already
    quoted, are clearly pertinent to the issue, and should be considered. Viewed
    in their entirety, the measures aim at a comprehensive approach to the
    problem. Traffic cannot be banned, but it can have obstructions removed or
    reduced. Traffic speed will be regulated as to time, density, hours of traffic
    generated by the project.
    A certified EIR is only required to have “ ‘a reasonable plan for
    mitigation.’ ” (City of Marina v. Board of Trustees of California State
    University, supra, 
    39 Cal.4th 341
    , 365; see Concerned Citizens of South
    Central L.A. v. Los Angeles Unified School Dist. (1994) 
    24 Cal.App.4th 826
    ,
    843 [“an EIR must only consider ‘a reasonable range of . . . mitigation
    measures’ ”].) The CEQA treatise, distilling dozens of reported decisions,
    states: “The courts have generally deferred to an agency’s assessment of the
    effectiveness of the mitigation measures proposed in an EIR.” (Practice
    Under the California Environmental Act, supra, § 14.9, p. 14-9.) And we
    repeat the words of our Supreme Court: “A court’s task is not to . . .
    determine who has the better argument when the dispute is whether adverse
    effects have been mitigated or could be better mitigated. We have neither the
    resources nor [the] scientific expertise to engage in such analysis . . . .”
    (Laurel Heights, supra, 
    47 Cal.3d 376
    , 393.)
    From our non-scientific perspective, we see the County confronting an
    existing difficulty that could have only imperfect mitigation. The response
    was a good faith attempt to reduce and/or buffer the anticipated traffic
    consequences of the project with “ ‘a reasonable plan for mitigation.’ ” (City of
    Marina v. Board of Trustees of California State University, supra, 
    39 Cal.4th 341
    , 365.) Accordingly, we must reject the Town’s attempt to overthrow the
    Board’s decision on this point.
    58
    B. Traffic Density
    The private plaintiffs contend that “Substantial evidence does not
    support the EIR’s traffic study given the failure to study peak hour traffic.”
    This is what the County decided:
    “IMPACT ANALYSIS
    “Impact 5.1-1 Existing-Plus-Project Impacts on Study
    Intersections
    “Project traffic would increase traffic volumes at study intersections
    along Tiburon Boulevard and Paradise Drive. This would be a less-than-
    significant impact.
    “EXISTING-PLUS-PROJECT CONDITIONS
    “Project-generated trips were added to existing weekday AM and PM
    peak hour volumes to obtain existing-plus-project volumes. The resulting
    existing-plus-project traffic volumes are shown in Exhibits 5.1-21 through
    5.1-24.
    “Exhibits 5.1-25 and 5.1-26 present the existing-plus-project levels of
    service at all study intersections. Project traffic added to existing volumes on
    Tiburon Boulevard would result in the following:
    “At signalized intersections currently operating acceptably, the
    addition of project traffic would not result in an unacceptable level of service
    operation.
    “At the one un-signalized intersection with side street left turns
    currently operating unacceptably in both the AM and PM peak hour (Reed
    Ranch Road/Tiburon Boulevard), the addition of project traffic volumes would
    not result in meeting the signal warrant #3 criteria levels. Exhibit 5.1-27
    shows the result of signal warrant evaluation.
    “Mitigation Measure 5.1-1 No mitigation would be required.”
    59
    “POTENTIALLY SIGNIFICANT IMPACTS MITIGATED TO A
    LESS THAN SIGNIFICANT LEVEL
    “Impact 5.1-2: Cumulative Buildout-Plus Project Impacts to
    Study Intersections
    “Facts
    “The EIR found that Cumulative-plus-project conditions would increase
    peak hour traffic volumes at all study intersections. With planned
    improvements, all but three study intersections would operate acceptably
    with or without the project, during the AM and PM peak hours: The
    signalized Avenida Miraflores/Tiburon Boulevard intersection, the signalized
    Rock Hill Drive/ Tiburon Boulevard intersection, and the un-signalized Reed
    Ranch Road southbound left turn to Tiburon Boulevard. The impact is
    discussed on 218−227 of the D[raft]EIR.
    “CEQA § 21081(a) Finding
    “Finding #1: This impact is mitigated to a less-than-significant level.
    “Evidence Supporting the Finding
    “Based upon the EIR and the entire record, this traffic impact is
    mitigated to a less-than-significant level by the imposition of Mitigation
    Measures 5.1-2, 5.1-2(a) & 5.1-2(b) because the applicant would pay a pro-
    rated share of planned improvements and payment in full for unplanned
    improvements to mitigate cumulative traffic impacts at these intersections.
    “Conditions of project approval require the applicant to pay a pro-rated
    share of planned lane improvements at the Redwood Highway Frontage
    Road/Tiburon Boulevard intersection and Trestle Glen/Tiburon Boulevard
    intersection, and a pro-rated share of the costs for the planned signalization
    of the Mar West/Tiburon Boulevard intersection consistent with traffic
    mitigation fees to be determined by the Town of Tiburon and supported by
    60
    the Marin Countywide Plan. The conditions of approval also require the
    applicant to pay the project’s fair share for provision of overlapping phasing
    for the southbound left turn from Rock Hill Drive to Tiburon Boulevard.
    “Adopted Mitigation Measures:
    “5.1-2(a) identifies planned lane improvements at the Redwood
    Highway Frontage Road/Tiburon Boulevard intersection and the Trestle
    Glen/Tiburon Boulevard intersection that the applicant would contribute to.
    Also requires the applicant to pay a pro-rated share of the costs for the
    planned signalization of the Mar West/Tiburon Boulevard intersection
    consistent with traffic mitigation fees to be determined by the Town of
    Tiburon and supported by the Marin Countywide Plan.
    “5.1-2(b) requires the applicant to pay the Project’s fair share of
    provision of overlapping phasing for the southbound left turn from Rock Hill
    Drive to Tiburon Boulevard.
    “The Board hereby adopts and makes a condition of approval
    Mitigation Measures 5.1-2(a) and 5.1-2(b).”
    It is important to note that the private plaintiffs are not claiming that
    the mitigation measures will be inadequate. Instead, they attack one aspect
    of the methodology used by the EIR to calculate the impact of traffic
    generated by the project or attributable to it. The traffic analyst used what is
    called “level of service” (LOS) methodology. It is an established standard (see
    Schaeffer Land Trust v. San Jose City Council (1989) 
    215 Cal.App.3d 612
    ,
    623), and its use appears to be mandatory in Marin County. As will be noted
    by Judge Chou, the LOS methodology was used by both the County and the
    Town, in their respective general plans
    The point of plaintiffs’ claim is quite precise—the EIR’s analysis is
    fatally defective because, in analyzing peak traffic hours, while correctly
    61
    measuring the AM traffic to include both commute and school drop-offs, in
    calculating the PM traffic, the EIR used only the return commute hour,
    which did not take account of the school pick-up traffic, which occurs in the
    afternoon, not the early evening.
    Judge Chou exhaustively analyzed the issue. We cannot improve upon
    his reasoning which, with minor editorial modifications, we adopt as our own:
    “[Private plaintiffs] request[] that the FEIR and project approval be set
    aside and a new traffic analysis be prepared to include mid-afternoon, school-
    hour traffic impacts along Tiburon Blvd. In studying the project’s potential
    cumulative impacts, the analyst collected traffic volume data at 15 main
    intersections, mostly along Tiburon Blvd., taken during the typical A.M./P.M.
    ‘business rush’ peak commute hours, in compliance with the criteria
    contained in The Highway Capacity Manual, the industry standard for
    conducting Level of Service (LOS) analysis. The May 2009 study included the
    signalized and unsignalized intersections running along Tiburon Blvd.,
    Paradise Dr., and the Hill Haven neighborhood.
    “The traffic volume count included the intersections where Tiburon's
    three public schools are accessed from Tiburon Blvd.: Reed Elementary
    School @ Lyford Dr.; Del Mar Intermediate School @ Avenida Miraflores; and
    BelAire School @ Blackfield Dr. The existing volume counts at these
    intersections were taken during the typical weekday AM/PM peak commute
    hours of 7:00−9:00 a.m. and 4:00− 6:00 p.m. during the school year. As
    discussed in the FEIR, the analyst determined peak weekday AM hours
    occurred between 7:45−8:45 a.m. and the peak PM hour traffic volume
    occurred between 5:00−6:00 p.m. Using the thresholds of significance for
    Level of Service (LOS) as provided in the County’s and Town’s general plans
    (measured in average seconds/minutes of vehicle delay), all intersections
    62
    were found to operate at acceptable LOS, both without or with the project,
    except at the stop sign-controlled intersection at Reed Ranch Rd., where the
    left turn to Tiburon Blvd. going south operates unacceptably at both A.M.
    and P.M. peak hours at existing volumes. The analyst then estimated the
    additional project-generated trips based on existing traffic patterns from a
    sample of residential areas during the weekday AM/PM peak hours on
    Paradise Dr. and Tiburon Blvd.; i.e., 26 inbound and 24 outbound trips would
    be expected during the AM peak hour, and 19 inbound and 30 outbound trips
    would be expected during the PM peak hour.
    “The DEIR used this data to calculate the ‘Existing-Plus-Project
    Conditions’ (Impact 5.1-1); and Cumulative Buildout-Plus-Project-Impacts
    (Impact 5.1-2).For Impact 5.1-1, it was determined that although ‘[p]roject
    traffic would increase traffic volumes at study intersections along Tiburon
    Blvd. and Paradise Dr.’ ‘[t]his would be a less-than-significant impact’ and no
    mitigation was required. This acceptable LOS includes the three public
    school intersections; Lyford Dr., Avenida Miraflores, and Blackfield Dr.
    “Next, estimating the cumulative future buildout contained in the
    Tiburon General Plan and the Tiburon Planning Area (Impact 5.1-2), the
    DEIR found that ‘with planned improvements, all study intersections would
    operate with acceptable LOS with or without the project during the AM and
    PM peak hours, except for three: Avenida Miraflores (Del Mar Intermediate
    School) would operate unacceptably during the weekday AM peak hours;
    Rock Hill Dr. will have an unacceptable LOS during the weekday PM peak
    hours, and the Reed Ranch Rd. south-bound left turn onto Tiburon Blvd.
    would be unacceptable during both AM and PM peak hours.’
    “The DEIR determined the effect of the project plus buildout would be
    cumulatively considerable for Avenida Miraflores and Rock Hill Dr.
    63
    intersections. But as for the southbound left-turn from Reed Ranch Rd. onto
    Tiburon Blvd., it was determined the potential project traffic would not add
    to the poor LOS from the left-turn onto Tiburon Blvd. since the project’s
    traffic would be limited to the acceptable LOS flow of through-traffic along
    Tiburon Blvd. at that intersection.
    “The mitigation measures identified in the DEIR for the cumulative
    impacts included Martha’s payment of its share of development fees for
    planned signal and lane improvements as contained in the Tiburon General
    Plan. With these mitigation measures, the DEIR concluded the ‘project
    impacts would not be cumulatively considerable significant impacts’ at the
    Rock Hill Dr. and Avenida Miraflores intersections. In certifying the FEIR
    and approving the project, the Board of Supervisors adopted these mitigation
    measures.
    “A few years later, in February 2013, the Town of Tiburon completed its
    own detailed traffic counts for the Tiburon Blvd. intersections affecting the
    schools. Following the circulation of the FEIR in June 2013, the County
    received comments requesting the County to analyze intersection impacts
    during peak school hours. Typical of the public comments challenging the
    FEIR’ s 2009 traffic study is this July 29, 2013 letter from [private plaintiff
    Tiburon Open Space Committee] criticizing the FEIR:
    “ ‘Another obvious flaw of the FEIR is its inadequate and inaccurate
    assessment of traffic impacts on Tiburon Blvd. The FEIR analyzed business
    rush-hour traffic along this road, not school rush hour traffic, which is when
    traffic levels are truly at their peak. After-school traffic is gridlock and lasts
    for over an hour at varying times of the day, depending on the day and the
    schools’ schedules. The afterschool traffic rush often coincides with the
    afternoon time period when worker and construction vehicles exit Tiburon
    64
    along Tiburon Boulevard. This is a safety impact, and also contributes to a
    significant existing traffic problem. The failure to assess traffic at its peak is
    a deficiency in FEIR, rendering the conclusions pertaining to significant
    impacts unsupported. A new traffic analysis must be performed, and the
    report recirculated, because the current one does not address true peak levels
    of traffic on Tiburon Blvd.’
    “In addition to the public comments, the record contains a July 23, 2013
    summary of criticisms from the Planning Commission of perceived
    deficiencies in the FEIR, including the traffic impact analysis on Tiburon
    Blvd.:
    “ ‘Traffic. The response to comments does not adequately address the
    analysis of traffic impacts from the proposed project. Specifically, the traffic
    analysis was based solely on the peak hours for commuter traffic and does
    not include an analysis of the impacts during the other important local peak
    traffic period—that caused by school-related traffic. This information is
    critical for both the general public and the decision makers to fully
    understand the traffic impacts of the proposed project.’
    “In response, the Board of Supervisors asked its environmental
    consultant (Nichols/Berman) to clarify this issue raised by the public. In a
    memorandum to the County dated February 13, 2014, EIR consultant Bob
    Berman responded to the public comments which he described as requesting
    an analysis of ‘school rush’ traffic impacts, especially in light of the noticeable
    increase in school-related vehicle trips since the May 2009 DEIR; and to
    consider the 2013 traffic analysis for mid-afternoon (after school) traffic flow
    on Tiburon Blvd. on seven intersections also analyzed in the May 2009 study,
    including the three public school intersections noted above.
    “Berman explained that the reason why the 2009 traffic study did not
    65
    examine the midafternoon school period was that the standard ‘design’ for
    Tiburon and most communities is that the morning and evening peak
    commute rush hour evaluated by the County is the basis on which streets are
    designed to meet ‘predictable peak periods.’ Comparing the 2009 PM peak
    hours (5:00−6:00 PM) with the 2013 Tiburon study’s mid-afternoon peak
    hours, shows that the total traffic volume for these seven intersections was
    higher in the 2009 study than the 2013 Tiburon study. Four of the
    intersections in the 2013 study showed less ambient (without project) traffic
    volume than the 2009 study, including the intersections at Blackfield Dr.—
    Bel Air School and Lyford Dr.—Reed Elementary School.
    “The 2013 study showed an increase in ambient after-school volume at
    the three remaining intersections: Trestle Glen—44 cars; San Rafael Ave.—
    36 cars; and Avenida Miraflores—Del Mar School, which showed only an 11-
    car increase. Although not mentioned by the consultant, this small increase
    in numbers in Avenida Miraflores over the 2009 PM peak hours study could
    be due to the School District’s report of a district-wide student enrollment
    increase of 575 students between 2005 and 2013. The consultant stated that
    these existing traffic increases are within the range of daily fluctuations and
    are not meaningful, and the 2009 PM peak hour vehicle count provided a
    ‘worst case scenario.’ The court does not read the FEIR as ignoring the
    impacts to school-related traffic and hereby rejects the contention that the
    FEIR fails as an informational document.
    “Because this contention challenges ‘the scope of an EIR’s analysis of a
    topic [or] the methodology used for studying an impact [or] the reliability or
    accuracy of the data upon which the EIR relied’ the court applies the
    substantial evidence test. (Oakland Heritage Alliance v. City of Oakland
    (2011) 
    195 Cal.App.4th 884
    , 898.) A court will apply this deferential
    66
    standard of review in favor of the lead agency to resolve disputed questions of
    fact relating to sufficiency of the methodology used to analyze the potential
    traffic impact of the project. (See Saltonstall[, supra,] 234 Ca1.App.4th [549,]
    581 [challenge to the factual sufficiency of the EIR’s traffic analysis is
    reviewed under the deferential substantial evidence standard].) The EIR’s
    traffic analyst’s choice of methodology to determine the project’s potential
    traffic impact along Tiburon was consistent with established industry
    standards and there is substantial evidence in the record to show it was
    suitable for this location.
    “While the Town’s subsequent 2013 ‘school-rush’ traffic study showed a
    slight increase in car volume for Avenida Miraflores, it also showed that the
    2009 volumes were higher at the other two school-related intersections. This
    slightly higher traffic count four years later at Avenida Miraflores does not
    prove there was not substantial evidence to support the 2009 study’s
    methodology of analyzing AM/PM business commute hours to estimate the
    project’s potential impacts on LOS along Tiburon Blvd.
    “It is settled that the County is not required to conduct every requested
    test in order to satisfactorily analyze a potential impact, and ‘our courts have
    repeatedly emphasized that an EIR must demonstrate a good faith effort at
    full disclosure; it does not require perfection, nor exhaustive analysis.
    [Citation.]’ (South of Market Community Action Network v. City and County
    of San Francisco (2019) 
    33 Cal.App.5th 321
    , 342-343.) ‘A project opponent or
    reviewing court can always imagine some additional study or analysis that
    might provide helpful information. It is not for them to design the EIR. That
    further study . . . might be helpful does not make it necessary.’ (Laurel
    Heights, supra, 47 Cal.3d [376,] 415.) The County’s traffic analyst ‘was
    entitled to rely on the methodology and conclusions it articulated in its draft
    67
    EIR because it had the prerogative to resolve conflicting factual conclusions
    about the extent of traffic congestion that would result from the . . . project.
    [Citation.]’ (Saltonstall, supra, 234 Cal.App.4th [549,] 582−583.)
    “On this record, the court finds that [private plaintiffs have] not
    sustained [their] burden to show either: the DElR’s impact analysis ‘deprived
    the public and decision makers of substantial relevant information about the
    project’s likely adverse impacts’ (Neighbors for Smart Rail[ v. Exposition
    Metro Line Construction Authority,] supra, 57 Cal.4th [439,] 463); or that the
    conclusions, determinations and methodology used to study this impact were
    not supported by substantial evidence in the record. (See Save Panoche
    Valley [v. San Benito County (2013)] 217 Cal.App.4th [503,] 514.) The County
    did not abuse its discretion by not requiring the traffic impacts to be
    measured during the mid-afternoon ‘school rush’ hour, and the petition is
    denied on this ground.”
    We add one point to Judge Chou’s analysis only to make it more
    emphatic. By itself, Mr. Berman’s response to the Supervisors’ query
    constitutes all the substantial evidence needed to settle the issue. In their
    brief, the private plaintiffs merely re-argue the same evidence they did before
    Judge Chou, an approach that can have no hope of success in a reviewing
    court. (E.g., Hjelm v. Prometheus Real Estate Group, Inc. (2016)
    
    3 Cal.App.5th 1155
    , 1166; In re Marriage of Davenport (2011)
    
    194 Cal.App.4th 1507
    , 1531.) 29
    29  We note that the issue has been simplified for future cases.
    Effective July 1, 2020, the Guidelines now specify how transportation
    impacts are to be measured. That measure states explicitly that “vehicle
    miles traveled is the most appropriate measure of transportation impacts.”
    (Guidelines, § 15064.3, subd. (a).) (See Practice under the California
    Environmental Quality Act, supra, § 13.70, p. 13-78.2 [Guideline does not
    68
    C. Mitigation Of Pedestrian Safety
    The Town asserts that “No evidence supports the County’s finding that
    the impacts on pedestrian safety in Town neighborhoods will be mitigated.”
    This is what the County decided:
    “IMPACT 5.1-7: Project Impact on Pedestrian Circulation.
    “Facts:
    “The EIR found that Paradise Drive fronting the project site is a
    roadway considered unsafe for pedestrian use. The project would add traffic
    to this unsafe existing roadway condition. While not significant alone, this
    additional increment of motor vehicle and pedestrian traffic would exacerbate
    already constrained conditions. This would be a significant cumulative
    impact. Additionally, the project site provides no pedestrian accommodation
    (no sidewalks or pathways outside the travel lane) on its proposed roadways,
    and there is no public access through the site other than an access easement
    to Old St. Hilary’s Open Space along 20-foot-wide roadways. . . .
    “CEQA § 21081(a) Finding:
    “apply to steps in the CEQA process completed before the effective date or to
    CEQA documents that were circulated for public review before then”].)
    The same Guideline just as plainly states that “a project’s effect on
    automobile delay shall not constitute a significant environmental impact”
    (Guidelines, § 15064.3, subd. (a)), and it is clear from the brief that delay was
    and is in the forefront of the private plaintiffs’ thinking.
    The Guideline also reiterates the point noted by Judge Chou: “A lead
    agency has discretion to choose the most appropriate methodology to evaluate
    a project’s vehicle miles travelled. . . .” (Guidelines, § 15064.3, subd. (b)(4);
    see Center for Biological Diversity v. Department of Fish & Wildlife (2015)
    
    62 Cal.4th 204
    , 228 [“A lead agency enjoys substantial discretion in its choice
    of methodology”].) This would be true when the agency is following
    established local practice, and even more so if it is following positive
    statutory command. As already noted, it is not clear what is the precise basis
    for using the LOS methodology in Marin County.
    69
    “Finding # 1: This impact is mitigated to a less-than-significant level.
    “Evidence Supporting the Finding:
    “Based upon the EIR and the entire record, the conditions of project
    approval implements mitigation measure 5.1-7(a) by requiring roadway
    improvements to maximize widening and refuge areas for pedestrians at
    Forest Glen Court/Paradise Drive (consistent with Mitigation Measure 5.1-
    3)[30], Design the intersection of the driveway serving Modified Master Plan
    Lots #40−#43 with Paradise Drive to provide maximum amount of widening
    and paved refuge area for pedestrians. Requires shoulder widening as
    required with Mitigation Measure 5.1-6 (a thru c).
    “The Modified Master Plan implements mitigation measure 5.1-7(c).
    The redesigned residential roadways serving the project site comply with
    Marin County’s residential roadways standards and include a pedestrian
    walk on one side of the roadway. A public access easement is provided along
    Ridge Road-Tam View Court connecting existing residential development in
    Tiburon with Old St. Hilary’s open space. The access is an all-weather
    surface consistent with the Marin Countywide Trail Plan.
    “Adopted Mitigation Measures:
    “5.1-7(a) requires certain off-site roadway improvements, consistent
    with Marin County Code section 24.04.510.
    “5.1-7(b) requires implementation of certain measures along Hill Haven
    neighborhood streets to improve safety, including posting of signs and
    30  “5.1-3 requires preparation of a right-of-way improvement plan that
    shows adequate sight distance would be provided and shall include
    improvements to the Forest Glen Court/Paradise Drive intersection to
    provide a minimum 158 feet of sight distance and widening of Paradise Drive
    to include four-foot shoulders with minimum 60-foot taper at the proposed
    Forest Glen Court intersection.”
    70
    restrictions on placement of dumpsters.
    “5.1-7(c) requires certain on-site road improvements, consistent with
    Marin County Code section 24.04.440(b) and (c) regarding sidewalks and
    section 24.04.490 regarding sidewalk grades.
    “The Board hereby adopts and makes a condition of approval
    Mitigation Measures 5.1-7(a), 5.1-7(b), and 5.1-7(c).”
    Initially, the Town states that “Although the three mitigation measures
    identified in Mitigation Measure 5.1-7(b) are exclusively within the Town’s
    jurisdiction, the County failed to find that they ‘can and should be’ adopted by
    the Town.” Martha (and by joinder the County) responds that the point is
    waived because it was not raised during the extensive administrative process.
    The Town does not challenge this conclusion in its reply brief. This we take
    as an implicit concession that Martha’s waiver argument is sound, (Rudick v.
    State Bd. of Optometry (2019) 
    41 Cal.App.5th 77
    , 89−90), meaning the merits
    were not preserved for review.31 (§ 21177, subd. (a); Stop Syar Expansion v.
    31 This may also be deduced from Judge Chou’s statement of decision.
    In analyzing the mitigation measures in 5.1-7, he simply stated, “These
    measures will require the approval of the Town.” That he went no further
    suggests that there was no pending dispute before him of the kind the Town
    now advances.
    The Town did state in its opening brief that it “and others addressed
    the flaws in the County’s analysis of traffic and pedestrian impacts and
    mitigation measures.” This is an expansive interpretation of the materials
    cited to support the statement.
    Of the four communications actually from the Town, the first stated
    that because “the Draft EIR recommends several mitigation measures that
    call for actions by the Town of Tiburon to mitigate traffic, safety, or other
    project impacts . . . we believe that . . . the Final EIR should list the Town as
    a Responsible Agency.” The second claimed that mitigation measure 5.1-7
    would “exacerbate” existing conditions, not improve them, and ends with the
    enigmatic question “Would this impact remain a significant and unavoidable
    safety impact, in the opinion of the EIR preparers, if this mitigation measure
    71
    County of Napa (2021) 
    63 Cal.App.5th 444
    , 453.)
    In any event, even if the point had been preserved for appeal, it would
    not prevail.
    Impact 5.1-7 does not have the language found in Impact 5.1-10 that
    “Another public agency can and should mitigate the impact.” Martha, joined
    by the County, calls this omission “at most, a scrivener’s error,” and we are
    inclined to agree. It is clear from the text that the specified actions could
    only be accomplished by the Town. The Town’s participation in this appeal
    makes it constructively aware of what is expected of it. In these
    circumstances, the omitted language qualifies as “insubstantial or de
    minimis,” and thus “not prejudicial.” (Environmental Protection Information
    Center v. California Dept. of Forestry & Fire Protection, supra, 
    44 Cal.4th 459
    , 486.)
    In light of what was said with respect to the mitigation of traffic safety
    earlier in this opinion, there can be no doubt that pedestrian safety along
    narrow and winding roads is not a problem that was flying under the radar.
    If space was tight for vehicles, the hazard for pedestrians is apparent. The
    County candidly admitted that pedestrians were already at risk and would
    is not implemented?” The last, the most detailed, was in effect a laundry list
    of complaints of “inadequate analysis,” with the proposed mitigation
    measures called “unacceptable,” “window dressing,” or “plausible in theory,
    but its successful real world implementation is highly questionable.” The
    fourth reiterated that “the Town of Tiburon continues to find mitigation of
    certain impacts identified in the EIR as inadequate, . . . likely to be
    ineffective and/or unlikely to be implemented.”
    The rest of the record citations are to letters from residents, one
    couple in particular. They are long on opposition and short on specific
    proposals.
    72
    only become more so.32
    Nevertheless, the mitigation measures imposed are more than
    reasonable. The tight regulation of traffic already discussed would obviously
    correlate to pedestrian safety, a point recognized in the EIR. However, for
    pedestrian traffic topography was not the constricting factor it was for
    vehicular traffic. Again, we note that the Town does not point to any
    alternative measure mentioned during the extensive administrative
    proceedings that would have improved matters but was rejected by the
    County. The County imposed mitigation measures specifically directed at
    improving pedestrian safety. Under the peculiar physical circumstances
    presented here, the record contains ample substantial evidence showing a
    good faith attempt to produce “ ‘a reasonable plan for mitigation.’ ” (City of
    Marina v. Board of Trustees of California State University, supra, 
    39 Cal.4th 341
    , 365.) That is sufficient to defeat the Town’s contention. (See Practice
    under the California Environmental Quality Act, supra, § 14.9, p. 14-12.)
    E. Mitigation Of The California Red-Legged Frog
    The Town frames its final argument as follows:
    “A breeding population of threatened California Red Legged Frogs
    [CRLF] lives just to the east of the Project site in a five-acre, freshwater
    32  Judge Chou admirably characterized the situation: “The record
    establishes that under existing traffic volume these residential streets
    already are recognized as dangerously unsafe for pedestrians and vehicles,
    and are even more so when parking is allowed on one or both sides of these
    narrow streets.”
    Martha uses more biting language: “the purpose of this measure is
    not to make the roads safe—Tiburon has for long permitted them to be
    unsafe—but to mitigate the Project’s minimal contribution to such existing
    conditions.” By “minimal,” Martha refers to the traffic study’s conclusion
    that the project would generate 26 inbound and 24 outbound trips in the “AM
    Peak Hour,” and 19 inbound and 30 outbound in the “PM Peak Hour.”
    73
    pond, Keil Pond, on a property called Keil Cove. Keil Spring—a naturally
    occurring spring upland of Keil Cove, on a small parcel completely bounded
    by Martha Company’s property—is the sole source of water for Keil Pond and
    the surrounding 34 acres of historic botanical gardens of Keil Cove.”
    “The EIR hydrologist determined that the Project could result in
    hydrologic impacts that may affect both water quality and water flow
    patterns in the drainage ways that flow downstream to Keil Pond. For
    example, the Project will impact water quality in Keil Pond by increasing
    erosion, sedimentation, and pollutants (chemicals from landscaping, and oil
    and grease from vehicles). The County determined that the Project ‘could
    result in degradation to downstream waters during Project construction and
    operation and this could potentially result in impacts to CRLF breeding
    habitat in Keil Pond.’ ”
    “The EIR found that the Project would have a significant impact on
    CRLF, but that this could be mitigated to a less-than-significant level by
    various mitigation measures. However, the County violated CEQA by
    (1) improperly deferring mitigation; and (2) failing to reconcile its finding
    that one of the Project’s significant unavoidable impacts—the destruction [of]
    Keil Spring (the sole water source of Keil Pond)—with its finding that the
    impact on CRLF will be mitigated to a less-than-significant level.”
    The second part of the Town’s contention is stated as follows: “The
    County violated CEQA by failing to analyze whether the significant and
    unavoidable impact on the water supply for Keil Pond will adversely impact
    [the] CRLF.”
    The Board’s finding that “Impacts to the California Red Legged Frog”
    “is mitigated to a less-than-significant level” set out the “Evidence
    Supporting the Finding”: “[a]doption of these mitigation measures would
    74
    result in the in perpetuity preservation and management of a minimum of
    35.6 acres of foraging and dispersal habitat for CRLF to compensate for
    between 7.4 and 12.8 acres of such habitat that would be lost as a result of
    the Project . . . . In addition, adoption would eliminate or reduce the
    likelihood of individual CRLF being harmed or killed during Project
    construction.”
    Five mitigation measures were imposed:
    “5.6-2(a) requires avoidance of CRLF dispersal movements by redesign
    of the site plan in the Forest Glen area to provide connectivity via a
    minimum 100-foot wide woodland corridor between preserved woodland
    habitat in the southern and northern portions of the site. If the 100-foot-wide
    corridor is not feasible, the applicant must create wetland habitat on site or
    enhance existing wetlands on the Project site so these wetlands function as a
    breeding habitat. The Project, as modified by the Martha Company’s June 6,
    2017 revised site plan, incorporates the provisions of Mitigation Measure 5.6-
    2(a) and will create and/or enhance existing wetlands.
    “5.6-2(b) establishes the preservation requirements for CRLF foraging
    and dispersal habitat at a minimum 3:1 preservation to loss ratio. Also
    includes provisions that, in the event a 3:1 ratio of on-site preservation is not
    feasible, the applicant must make up any difference by purchasing and
    preserving CRLF habitat off-site in the Project region. This option requires a
    conservation easement and a CRLF Mitigation Plan. The Project, as
    modified by the Martha Company’s June 6, 2017 revised site plan,
    incorporates the provisions of Mitigation Measure 5.6-2(b) and will provide a
    3.66:1 preservation to loss ratio.
    “5.6-2(c) ensures the in-perpetuity preservation of CRLF habitat
    remaining after Project development through dedication of Parcel A to the
    75
    MCOSD [Marin County Open Space District] or another public agency or
    non-profit approved by the County. Also requires BMPs [Best Management
    Practices] that are consistent with Mitigation Measures 5.5-1 and 5.5-3[33] to
    33 “5.5-1(a) requires implementation of construct BMPs shown on the
    applicant’s Stormwater Control Plan as well as preparation of a Stormwater
    Pollution Prevention Plan to be implemented during construction that pays
    particular attention to: (1) the construction access road and associated
    vehicular pollutants; (2) vehicle wash areas to ensure that sediment is not
    tracked onto Paradise Drive; (3) fuel and other toxic compound storage;
    (4) BMPs to control sediment and erosion; (5) revegetation; and (6) trash
    control.
    “5.5-1(b) requires implementation [of] the post-construction BMPs
    shown on the applicant’s Stormwater Control Plan that detains the post-
    development increase in peak flow rates, directs roof runoff and runoff from
    other future residential impervious surfaces to bioretention areas, and
    installing a Filterra Bioretention Systems in roadway catch basins. Also
    requires preparation of a Stormwater Control Plan as a stand-alone
    document that details post-project stormwater control measures and utilizes
    information from the County Code and the County’s Guidance for Applicant’s,
    Stormwater Quality Manual for Development Projects in Marin County.
    “5.5-1(b) also requires incorporation of site-appropriate BMPs in the
    project Stormwater Control Plan for short- and long-term implementation in
    order to comply with the requirements of the Phase II NPDES [National
    Pollutant Discharge Elimination System] permit that includes: (1) monthly
    street sweeping; (2) informative documentation regarding the use of less toxic
    pest management procedures, including integrated pest management; and
    (3) bioswales, or other geotechnically appropriate methods for treatment of
    runoff from the lots’ impervious surfaces.”
    “5.5-3(a) requires the applicant to implement those measures in
    Mitigation Measure 5.5-1(a) that require compliance with NPDES
    Construction General Permit requirements for construction activities that
    disturb more than one acre. It also requires the applicant to add a provision
    to the Project CC&Rs stating that the Property Owners Association would be
    responsible for ensuring that the developer of each lot be required to meet all
    conditions specified in the NPDES Construction General Permit.
    “5.5-3(b) requires the applicant to implement Mitigation Measure 5.5-
    1(a), which requires the applicant to prepare a Stormwater Pollution
    76
    maintain water quality in downstream drainage channels and off-site ponds.
    “5.6-2(d) ensures the in-perpetuity preservation and management of
    CRLF habitat remaining after Project development by developing,
    implementing, and funding an RMP as set forth in Mitigation Measure 5.6-
    1.[34]
    Prevent[ion] Plan (SWPPP) and Mitigation Measures 5.5-1(b), which requires
    the applicant to prepare a standalone Stormwater Control Plan.
    “5.5-3(c) requires geomorphic evaluations and installation of rip rap
    receiving pads and/or velocity reducers at each point discharge location. Also
    provides specific instruction of erosion and sedimentation control equipment
    with respect to the project site’s steep topography. Requires maintenance
    procedures for devices established and transferred to the Property Owners
    Association.
    “5.5-3(d) requires implementation of Mitigation Measure 5.5-2 [also
    dealing with stormwater drainage].
    “5.5-3(e) provides standards for final design of site stormwater runoff
    detention facilities to ensure runoff storage volume sufficient to mitigate for
    the volume differential between the pre- and post-development, for 100-year
    rainstorm. In addition, runoff detention facilities serving on-site roadways
    should be sized to accommodate the increased stormwater runoff volumes
    generated by the expanded 28-feet roadway width stipulated by Mitigation
    Measure 5.1-11 and the additional parking spaces stipulated by Mitigation
    Measure 5.1-12, rather than the Project’s proposed 20-feet roadway width
    and parking configuration. To the extent feasible, required off-lot parking
    spaces should be founded on permeable pavers/pavement, gravel, or other
    permeable materials, in order to minimize required increases in the size of
    stormwater detention facilities, and to reduce the potential secondary
    grading and stabilization structure construction impacts that could accrue
    from expansion of these facilities. Permeable parking spaces should be
    restricted to areas outside of the recharge area identified for Keil Spring.”
    “5.6-1(c) Ensure the in perpetuity preservation and management of
    34
    special status plant habitat remaining after project development:
    “Develop and implement a Resource Management Plan (RMP) for all
    sensitive habitats (special status plant habitat, CRLF habitat, native
    bunchgrass habitat, woodland habitat, and wetlands) preserved within
    Parcels A and B (or any other parcels created for the purpose of habitat
    77
    preservation as stated in Mitigation Measure 5.6-1(b). Marin County CDA—
    Planning Division shall review and approve the RMP in consultation with the
    MCOSC and all applicable agencies . . . . ) The RMP shall be written by a
    qualified biologist with expertise in the various sensitive resources to be
    covered by the RMP. At a minimum, the RMP shall include the following:
    “Allowed and prohibited activities on preserved lands.
    “The location and type of any fencing, signs, and/or displays to be
    constructed on preserved lands.
    “A monitoring and management plan for non-native and/or invasive
    species, or pathogens, considered detrimental to protected resources (weed
    abatement, invasive species removal, SODS management, CRLF predator
    control, etc.).
    “The types and frequency of any maintenance activities to be conducted
    on preserved lands (litter removal, fence or sign repairs, etc.).
    “A Fuel Management Plan element to ensure that vegetation on the
    persevered areas and adjacent private lots within the project site would be
    maintained consistent with all current and future fire safety guidelines. The
    plan shall include provisions for mitigating woodland impacts as a result of
    fuel management activities through woodland enhancement in unaffected
    areas of the site.
    “A mitigation, monitoring and management plan for any sensitive
    habitats to be restored, enhanced or created on preserved lands (wetlands,
    CRLF habitat, etc.) as required by the EIR mitigation measures or that may
    be required as a result of permit conditions of regulating agencies. The plan
    shall include the extent of the monitoring period, quantifiable performance
    measures and success criteria; an adoptive management component with
    remedial measures should performance measures fall short of success
    criteria; quantifiable final success criteria; and once-annual report of findings
    to be provided to the County and any applicable resource agencies.
    “A monitoring plan to monitor the condition of resources occurring on
    preserved lands and adjacent private lots within the project site. This
    monitoring plan would help the responsible public agency or non-profit
    determine if private landowners are engaging in activities which are
    prohibited under the CC&Rs and which are having adverse effects on
    adjacent preserved resources. A component of the monitoring plan would be
    to ensure that adjacent private lot owners with the project site are managing
    vegetation on their lots consistent with [] current and future fire safety
    78
    “5.6-2(e) requires pre-construction surveys and daily construction
    monitoring during development within the woodland habitat and occurring
    within 300 feet of any drainageway to minimize harm or mortality to
    CRLFs.”35
    Deferring environmental analysis is disfavored. (E.g., Guidelines
    § 15126.4, subd. (a)(1)(b); Sundstrom v. County of Mendocino (1988)
    
    202 Cal.App.3d 296
    , 307.) However, unlike the Town, we do not equate the
    best management practices as “deferring mitigation.” BMPs appear to
    qualify as “revisions in the project plans . . . agreed to by[] the applicant”
    (§ 21080, subd. (c)(2)), and, because the mitigation measures, including the
    BMPs, were accepted by Martha as “condition[s] of approval,” they would
    appear to satisfy this statutory standard. (See Committee for Re-Evaluation
    of T-Line Loop v. San Francisco Municipal Transportation Agency, supra, 6
    requirements. The plan would include a provision for a once-annual meeting
    between the POA and the responsible public agency or non-profit staff to
    discuss results of these monitoring activities and necessary remedial
    measures.
    “Clearly stated short-term and long-term responsibilities of the
    applicant, the POA, and the MCOSD or other approved public agency or non-
    profit for the implementation and funding of the RMP.
    “Determine a mechanism by which the Resource Management Plan
    shall be funded in perpetuity in consultation with Marin County, the MCOSD
    or other approved public agency or non-profit, and all applicable
    agencies . . . . Such a mechanism would be the establishment by the
    applicant of a non-wasting endowment, funded by the applicant and/or
    through POA fees.”
    35  In the administrative record is a 2011 letter from the Town’s
    Community Development Department headed “Comments on Draft EIR.” In
    this letter, the County was advised that “the 32-unit alternative” would have
    a “greater” adverse impact on the CRLFs than “the 43-unit project.”
    Moreover, with respect to the mitigation measures identified in the Draft
    EIR, “we urge that the County adopt those measures.”
    
    79 Cal.App.5th 1237
    , 1254.) Moreover, the BMPs were already in existence, as
    they are “shown on the applicant’s Stormwater Control Plan.” Thus, there is
    no deferral. (See Friends of the Eel River v. North Coast Railroad Authority
    (2017) 
    3 Cal.5th 677
    , 722; Endangered Habitats League, Inc. v. County of
    Orange (2005) 
    131 Cal.App.4th 777
    , 795−796.)
    It is true that certain measures were not yet in existence. The mitiga-
    tion measures ordered by the County refer to Martha being required to pre-
    pare and implement a Stormwater Pollution Prevention Plan and a “Resource
    Management Plan . . . for all sensitive habitats.” However, the contents of
    both were specified, and the latter was to be reviewed and approved by the
    County Planning Department “in consultation with . . . all applicable agen-
    cies.” Martha was in effect being told to comply with existing regulations.
    Such a directive “is a common and reasonable mitigation measure, and may
    be proper where it is reasonable to expect compliance.” (Oakland Heritage
    Alliance v. City of Oakland, supra, 
    195 Cal.App.4th 884
    , 906.)
    In addition to the BMPs already formulated, the measures also refer to
    Martha’s Stormwater Control Plan, already in existence, and a National
    Pollutant Discharge Elimination System, which already appears to have been
    issued.
    It is thus apparent that the mitigation measures do not stand alone,
    but effectively incorporate by reference many other documents and measures.
    Martha is not a free agent, but is subject to oversight by numerous
    governmental agencies. To analyze the impact and effectiveness of the
    mitigation measures would require an integrated examination of all of these
    sources. Remember that the Town is concerned with “water quality and
    water flow patterns in the drainage ways that flow downstream to Keil
    Pond.” It is too obvious to require explanation that a Stormwater Control
    80
    Plan would be pertinent to “water flow patterns” and “drainage.” The same is
    true for the relevance of a Pollutant Discharge Elimination System to the
    issue of “water quality.” The contents of the Stormwater Pollution
    Prevention Plan that Martha is to prepare and implement must address
    pollutants and erosion, which would seem pertinent to “water quality,”
    “water flow patterns,” and “drainage.” Finally, reference is made in the
    mitigation measures to “the County’s Guidance for Applicants, Stormwater
    Quality Manual for Development Projects in Marin County.”
    An appellant is required to “support each point [in the opening brief] by
    argument and, if possible, by citation of authority.” (Cal. Rules, of Court, rule
    8.204(a)(1)(B).) The Town’s “argument” does not meet this standard.
    There is an additional point addressed only in passing by the Town,
    namely the fate of the Keil Spring and Keil Pond. The Town states that the
    County is willing to stand by and permit the “destruction [of] Keil Spring.”
    This is what the County decided:
    “Impact 5.5-6: Depleted Groundwater Supplies, Keil Spring
    and the Keil Property Spring-Based Water Supply
    “Facts:
    “The EIR found that landslide repair or improvements required to
    stabilize existing landslide deposits would convert on-site groundwater to
    surface water. The addition of impervious surfaces in the form of pavement
    and roof coverage would eliminate areas of existing groundwater recharge.
    These impacts would reduce the available water supply to Keil Spring and
    the underground cisterns located on the Keil property. A reduction in the
    available water supply to Keil Spring and/or the cisterns could result in a
    reduction in the availability of this historic water supply to the Keil property.
    A reduction in the amount of groundwater discharge from Keil Spring and/or
    the Keil property cisterns would result in a reduction to this historically
    81
    relied upon groundwater supply for irrigation of historically significant
    gardens and would result in a significant impact. . . .
    “CEQA § 21081(a) Finding:
    “Finding 3: The impact would be mitigated, but not to a less than
    significant level. Special considerations make further mitigation measures or
    alternatives infeasible.
    “Evidence Supporting the Finding:
    “No feasible mitigation is available due to lack of cooperation by the
    downstream property owner (Keil) and the resulting lack of access to the Keil
    property water supply system for: (1) installation of a piping system to
    deliver intercepted upslope groundwater to the Keil storage facilities; or
    (2) monitoring of Keil Spring and cistern flows vs. irrigation use.[36] Since no
    feasible mitigation is available, this impact would be a significant and
    unavoidable impact.”
    So, the project will result in less runoff from the Martha property to the
    Keil property, where the frogs live and breed. However, the owner of the Keil
    36  Actually, the Draft EIR made it clear just how obdurate the Keil
    family was being: “[T]he Keil Family has formally reiterated two positions it
    holds relative to the Easton Point project and the mitigation measures
    proposed . . . . First, the family will not allow any constructed drainage
    improvements designed to direct upslope groundwater intercepted by
    subdrains associated with proposed landslide repairs back to its
    groundwater-based water supply system, as proposed . . . . Second, the Keil
    Family will not cooperate in any way with the project applicants to provide
    baseline water supply or water use data for its facilities, including its in-
    holding spring, its groundwater cisterns, Keil Pond, or its network of above-
    ground storage tanks, pumps, and conveyance lines.” (Italics added.) The
    consequence of this non-cooperation converted what was mitigatable into “a
    significant unavoidable impact.”
    This is a useful reminder that not all the relevant actors in a CEQA
    question are formal parties.
    82
    property is not willing to co-operate in mitigation. Still, look at the language
    of Mitigation Measure 5.5-1(b), specifically “the applicant’s Stormwater
    Control Plan that . . . directs roof runoff and runoff from other future
    residential impervious surfaces to bioretention areas, and installing [a]
    Filterra Bioretention Systems in roadway catch basins.” Mitigation Measure
    5.5-2 requires measures to re-direct runoff water in the same direction prior
    to “pre-disturbance conditions.” Mitigation Measure 5.5-3(e) provides for
    “stormwater runoff detention facilities to ensure runoff shortage volume
    sufficient to mitigate for the volume differential between the pre-and post-
    development.” Mitigation Measure 5.5-1(b) provides for the runoff to be
    treated.
    The mitigation measures adopted appear to constitute a comprehensive
    attempt to deal with the problem, given the limitations under which Martha
    and the County were forced to operate. (See fn. 36, ante.) Yet again, the
    Town points to no specific alternative or addition that was rejected. A
    certified EIR is only required to have “ ‘a reasonable plan for mitigation.’ ”
    (City of Marina v. Board of Trustees of California State University, supra,
    
    39 Cal.4th 341
    , 365; see Concerned Citizens of South Central L.A. v. Los
    Angeles Unified School Dist., 
    supra,
     
    24 Cal.App.4th 826
    , 843 [“an EIR must
    only consider ‘a reasonable range of . . . mitigation measures’ ”]), and it is
    entitled to judicial deference. (Practice under the California Environmental
    Quality Act, supra, § 14.9, p. 14-12.) The Town has failed to prevent a
    coherent and developed argument as to why the EIR certified by the County
    is unreasonably inadequate.
    F. The Water Tank and Fire Flow Mitigation
    This is what the County decided:
    “Impact 5.7-7      Water Service Impacts
    83
    “The proposed project includes construction of a new 180,000-gallon
    water supply tank and distribution lines within the project site. Due to
    constraints with the proposed water supply and distribution system and
    additional constraints with the existing water lines located under Paradise
    Drive, some homes would not have the standard water pressures required for
    domestic water service. This would be a significant impact.
    “The existing Hill Haven and Paradise water tanks are not capable of
    providing adequate water supply to the project site. The proposed project
    includes construction of a new 180,000-gallon water supply tank on Parcel C
    within the project site, which along with the proposed distribution would
    meet the water service needs of the proposed development.
    “DOMESTIC WATER SUPPLY
    “As described above, in order to provide standard water pressure the
    MMWD [Marin Municipal Water District] requires that the highest water-
    using fixture in a structure be located no higher than 94 feet below the mid-
    point of the water serving tank. This provides the standard pressure of 40
    psi for domestic water use. Water pressures on the project site may be less
    than the standard pressure.
    “At the request of the project applicant, in July 2009, the MMWD
    completed a preliminary water feasibility analysis for the proposed project.
    The results of the preliminary water feasibility analysis are shown in
    Exhibit 5.7-1. This analysis assumed a bottom water tank elevation of 575
    feet. Based on the MMWD analysis 26 homes would have a standard water
    pressure (40 psi and above). As many as 17 of the proposed homes, Lots 4
    through 9, Lots 20 and 24, and Lots 35 through 43 would have low pressure
    (30 to 39 psi) or less. As a condition of receiving water service, homes with
    water pressures below 40 psi would be required to sign a low-pressure
    84
    agreement with MMWD. In addition, homes with water pressure of 29 psi or
    less would be required to install a low-pressure pump. [¶] . . . [¶]
    “In order to resolve water pressure and water flow issues, the project
    applicant has investigated several modifications to the proposed water
    system. These include:
    “In order to increase water pressure and flow to the upper elevation
    lots (generally Lots 1 through 3, 4 through 9, 20, 24, and 35 through 39)
    increase the elevation of the bottom of the proposed water tank from 580 feet
    to 590 feet.
    “In order to increase water pressure and flow to proposed Lots 21
    through 23, the applicant would upsize the existing six-inch water line
    located within the portion of Paradise Drive right of way that runs adjacent
    to the project site to an eight-inch line. The portion of the water line that
    would be upgraded extends from the location of the MMWD’s access road for
    the Paradise Water Tank to the location of the proposed driveway for Lots 21
    through 23. The proposed Swahn residential project, located on Bluff Point,
    across Paradise Drive from the 2008 Easton Point Residential Project,
    proposes some improvements along it Paradise Drive frontage. It is proposed
    to replace approximately 745 feet of the existing six-inch water main located
    under Paradise Drive with an eight-inch water main to improve water
    pressure and fire flow at the project site. Completion of this work would
    reduce the amount of pipeline that the Easton Point applicant would need to
    upsize in order to improve water pressure and fire flow for Lots 21 through
    23.
    “Mitigation Measure 5.7-7 In order to reduce water service impacts
    the applicant shall work with the MMWD to develop a water supply plan.
    The water supply plan shall clearly show that adequate water pressures
    85
    would be provided to the new houses on the project site. The plan shall
    include the following:
    “Increase the base elevation of the proposed water tank to 590 feet.
    “Replace the existing six-inch water main in Paradise Drive with an
    eight-inch water main from the proposed driveway for Lots 21 through 23 to
    Forest Glen Court. The length of the pipe replacement would be
    approximately 3,750 feet.
    “The applicant and/or property owners shall enter into a low-pressure
    agreement with the MMWD that serves as a written release from liability for
    any damage or inconvenience associated with the low-pressure domestic
    water service. If necessary, the applicant or property owner must install a
    low-pressure pump to provide adequate water pressure for the residence.
    “Significance after Mitigation Increasing the elevation of the
    proposed water tank and replacing the water main in Paradise Drive would
    reduce the number of homes on the project site that would have less than
    standard water pressure. By entering into an agreement with the MMWD to
    allow low pressure domestic water service individual property owners would
    be obligated to install any equipment necessary to provide enough water
    pressure for domestic use. Taken together, the individual components of
    Mitigation Measure 5.7-7 would reduce water service impacts to a less-than-
    significant level.
    “Implementation of Mitigation Measure 5.7-7 may result in secondary
    visual impacts. Increasing the elevation of the proposed water tank may
    result in the tank being slightly more visible than as discussed in Section
    5.8 Visual Quality discussion of Impact 5.8-4 View from Ayala Cove on
    Angel Island (Viewpoint No. 4).
    “Responsibility and Monitoring MMWD would be responsible for
    86
    designing the water delivery system including the new 180,000-gallon water
    storage tank. The applicant shall pay MMWD for designing the water
    delivery system. The applicant’s contractor shall install the new water lines
    and water storage tank. MMWD would be responsible for monitoring and
    verifying construction of the water delivery system.” (Fns. & original
    emphasis omitted.)
    “Impact 5.7-8     Inadequate Fire Flow
    “As designed the proposed project would have houses located at
    elevations where, in relation to the elevation of the proposed water tank, the
    water pressure would not be adequate to provide minimum fire flow
    requirements. This would be a significant impact.
    “As discussed above, the TFPD [Tiburon Fire Protection District]
    minimum fire flow requirement for fire hydrants that would serve homes
    greater than 3,600 square feet is 1,500 gallons per minute for a period of two
    hours with water pressure at 20 psi. Fire flow requirements can be reduced
    based on the inclusion of certain additional protective measures in the house
    design.
    “Based on the preliminary feasibility analysis prepared by MMWD (see
    Exhibit 5.7-1) the minimum fire flow requirements would not be achieved
    for several lots. These include Lots 7 through 11, 19 through 24, and 35
    through 43.
    “A lack of vertical separation from the elevation of the proposed water
    supply tank and fire hydrants combined with the static loss of water pressure
    would inhibit the available fire flow for the residential lots proposed at higher
    elevations. These include Lots 7 through 11, 19, 20, 24, and 35 through 43.
    The calculated fire flow for Lots 7 through 11, 19, and 20 through 23 are close
    to meeting the minimum requirements, and it is likely the TFPD would
    87
    accept a reduced fire flow with mitigation to require upgraded building
    sprinkler systems and non-combustible construction materials for these lots.
    Achieving acceptable fire flow for Lots 35 through 43 is more problematic,
    and may require limiting the size of the homes on these lots as well as
    structural upgrades for fire safety.
    “Acceptable fire flow requirements for Lots 21 through 23 can be
    achieved by upgrading the existing water line located at Paradise Drive to
    eight inches from the proposed driveway for Lots 21 through 23 to Forest
    Glen Court.
    “Ultimately, house sizes on the project site would depend on a number
    of factors besides fire flow, including the type of building construction, the
    fire resistance rating of materials used in construction, provision of automatic
    sprinklers, access to the structure, location of hydrants, vegetation
    management, and types of fire equipment available to suppress a fire. The
    final fire flow requirement for each future house on the site cannot be
    determined until the final building and landscaping plans are presented to
    and evaluated by the TFPD.
    “Mitigation Measure 5.7-8 In order to mitigate the project’s impacts
    resulting from inadequate fire flow the applicant shall execute the following
    through coordination with the TFPD and the MMWD.
    “Mitigation Measure 5.7-8(a) Acquire approval of reduced fire flow
    requirements from the TFPD (as permitted in 2007 California Fire Code) by
    implementing structural enhancements to proposed residences including but
    not limited to:
    “Upgrades to building sprinkler systems.
    “Utilizing non-combustible exterior building materials.
    “Mitigation Measure 5.7-8(b) Limit the size of proposed houses
    88
    (total allowable square footage) as needed to meet fire flow requirements.
    “Mitigation Measure 5.7-8(c) Upgrade existing water line located in
    Paradise Drive to an eight-inch line in order to provide adequate water flow
    and pressure for fire flow requirements.
    “Significance after Mitigation Implementation of these mitigation
    measures would reduce the project’s fire flow impacts to a less-than-
    significant level through compliance with fire flow requirements by
    qualifying for reduced fire flow requirements, upgrading existing
    infrastructure to increase available fire flow, or reducing the proposed
    building square footage on certain lots to sizes that comply with fire flow
    calculations.
    “Responsibility and Monitoring The applicant would be responsible
    to implement Mitigation Measure 5.7-8 and should coordinate with the TFPD
    and the MMWD to ensure all requirements are met. Monitoring of this
    mitigation measure can be verified by Marin County by requiring written
    approval from the TFPD prior to issuance of building permits.” (Fns. &
    original emphasis omitted.)
    The private plaintiffs argue that “nothing in MM5.7-7 requires the
    future formulation of mitigation recommendations, and there is no
    requirement that [Martha] actually implement any mitigation that might
    result from the water supply plan. For example, if it is determined that
    ‘adequate water pressures’ cannot be obtained for certain lots, nothing in
    MM 5.7-7 would prevent development of those lots. That is not acceptable.’’
    There follows discussion of the proposed water tank’s height.
    “[A]lthough MM 5.7-7 required that the base elevation of the proposed water
    tank be raised to 590 feet, the modified plan lowered the tank to 570 feet.
    MMWD approved [Martha’s] water supply plan. However, while the EIR’s
    89
    analysis establishes that lowering the tank results in lowered water
    pressures, the County simply lowered it standards in response without
    further analysis or study and approved the modified plan. While the EIR’s
    analysis required a water supply capable of providing a minimum of 1,500
    g.p.m. to fire hydrants for two hours, the County ultimately approved the
    modified design in providing 750 g.p.m. for one hour. [¶] The record fails to
    justify the reduced standards.”
    In addition to attacking the mitigation measures as inadequate,
    plaintiffs says the same of the monitoring program.
    Martha objects that both of the issues were not raised prior to the
    Board’s final action, and, thus, there was a failure to exhaust administrative
    remedies, with the consequence that the issue was not preserved for review.37
    The plaintiffs respond that, given the timing, objection was not possible and
    is therefore excused. (§ 21177, subd. (e).) Additionally, they indicate that
    their true target is simply the Mitigation Monitoring and Reporting Program.
    Although there is some initial plausibility to the plaintiffs’ position, it is
    37   In a footnote of its brief, Martha states: “While the EIR evaluated
    home water pressure and fire flows, neither raises environmental concerns
    that must be studied under CEQA. They are only impacts of the Project on
    itself, not impacts on the environment. Thus, they did not need to be
    analyzed in the EIR.” Our response is threefold.
    First, a footnote is not the appropriate way to introduce an
    important issue like this. (Evans v. Cornerstone Development Co. (2005)
    
    134 Cal.App.4th 151
    , 160.) Second, the issue was not raised in the trial
    court. The omission is conspicuous because it is obvious that Martha made
    the exact same argument with respect to the issue next discussed in this
    opinion. Third if Martha is saying that the completed project will have no
    environmental impact if there is a fire, we would emphatically disagree. If
    the project is completed, and if there was a fire, and if the inadequacies of
    water pressure contributed to houses on the site being consumed by fire, or
    contributing to the spread of that fire, we would be interested to know how
    such a result could not be considered an environmental impact of the project?
    90
    largely the product of the unusual chronology of proceedings before the
    Board, and, ultimately, does not withstand scrutiny.
    That position is that the Board essentially pulled an unexpected rabbit
    out of a hat, catching the plaintiffs completely by surprise. As shown by
    Judge Chou’s statement of decision, quoted earlier, the issue of fire flow was
    raised in October 2013 when the Board asked for “further clarification on
    impacts and mitigation measures,” including “residential water pressure
    [and] fire flow.” Martha’s response did not come until June 2017. That
    response was what the Board considered and approved at the hearings in
    September-October of that year.
    The plaintiffs’ position would have us to believe that the Board ignored
    its obligation under sections 21091−21092.5—not to mention the Brown Act—
    to provide notice to the public of what the Board would be considering at a
    noticed public hearing, and its obligation to allow an opportunity for response
    from private individuals and (if need be) other public agencies. Such a
    position cannot rest on inference, but must have evidence behind it to
    overcome the statutory presumption that the Board complied with that duty.
    (Evid. Code, § 664; Gilroy Citizens for Responsible Planning v. City of Gilroy,
    supra, 
    140 Cal.App.4th 911
    , 919.) This, plaintiffs do not provide, hence it’s
    point was not preserved for judicial review.
    Moreover, to try to confine the subject of the supposed surreptitious
    maneuver to the monitoring program is to mistake a tree for the forest. The
    subject of the hearings was not simply the monitoring program, but the entire
    draft EIR, together with the ancillary permits and approvals necessary to get
    the project underway. In other words, everything was on the agenda. It is
    simply not credible for plaintiffs to claim they were expecting the monitoring
    program to have a greater prominence.
    91
    In any event, even if the merits had been preserved for review,
    plaintiffs would not prevail.
    Simply saying that “The record fails to justify the reduced standards” is
    not sufficient to require anything further from this court. (Cal. Rules, of
    Court, rule 8.204(a)(1)(B)−(C).) It is a blatant attempt to throw the burden
    on respondent and this court to disprove the naked claim that the Board, and
    the trial court, acted without proper support. That is not how the appellate
    process works. (See, e.g., Ribakoff v. City of Long Beach (2018) 
    27 Cal.App.5th 150
    , 162. [“ ‘[A]n appellant must do more than assert error and
    leave it to the appellate court . . . ’ ”]; Paterno v. State of California (1999) 
    74 Cal.App.4th 68
    , 102 [“ ‘Instead of a fair and sincere effort to show the trial
    court was wrong, appellant’s brief is a mere challenge to respondents to prove
    that the court was right. And it is an attempt to place upon the court the
    burden of discovering without assistance from appellant any weakness in the
    arguments of the respondent. An appellant is not permitted to evade or shift
    his responsibility in this manner’ ”].)
    Two factors make this omission particularly striking. The first is that
    the underlying issue is public safety, and in this day and age, the question of
    fire danger is guaranteed to draw attention. Plaintiffs play on this in their
    brief by citing “the extreme fire dangers” that will result from the project
    being in an “urban-wildland interface . . . , where development occurs within
    undeveloped wildland and structures . . . located in close proximity to
    vegetative fuels.” Second, rather than confront that Judge Chou decided the
    question against them, plaintiffs simply ignore that rejection. Our review
    may be de novo, but we invariably find it beneficial to examine the
    statements of decision made by the trial court judges deciding CEQA cases.
    Judge Chou’s reasoning ran as follows:
    92
    “Commentators raised concerns about the adequacy and feasibility of
    these mitigation measures. . . . Martha subsequently submitted a modified
    Master Plan which relocated some lots downhill and located the new water
    tank to a 570 ft. elevation (instead of the proposed 590 ft.), while recognizing
    that several homes still would have inadequate water pressure which would
    require ‘low pressure water service agreements’ with MMWD similar to those
    currently in effect with some of the existing homeowners in the Hill Haven
    neighborhood. Importantly, MMWD reviewed the revised plan and in a letter
    to the County it determined that the modified Master Plan will meet the
    District’s water supply standards on condition, inter alia: the new water
    tank’s base remained at 570 ft. but the size increased to 265,000 gallons; the
    existing 1 million Paradise Drive Water Tank be reduced to 590,000 gallons
    and moved 50 ft. up the slope, which MMWD determined would improve fire
    flows and reduce pumping costs; install an Easton Point Tank pump station;
    and install specified-size piping throughout the subdivision. Based on these
    conditions, MMWD also completed an analysis of fire flow that would be
    available to serve lots under the modified Master Plan, and estimated the fire
    flow at the hydrants will range from anywhere from 900 to 3,650 gallons per
    minute (g.p.m.). The TFPD later confirmed in a July 19, 2017 letter to the
    County’s Planning Department that these flow rates comply with the
    California Fire Code for the proposed subdivision, on condition that all new
    construction installs automatic fire sprinkler systems. Under the Code, the
    standard flow rate of 1,500 g.p.m. for one hour may be reduced to 750 g.p.m.
    for 1 hour for homes with fire sprinklers.
    “MMWD’s letter also noted that for those lots with water pressure less
    than the standard 40 psi, those homeowners will be required to enter into a
    Low-Pressure Agreement, and additionally for those houses with estimated
    93
    pressures below 30 psi, the owners will be required to install private pumps.
    In certifying the FEIR and conditionally approving the modified Master Plan,
    the Board of Supervisors adopted Mitigation Measures 5.7-7 and 5.7-8 with
    the changes noted above and incorporated all of these actions in the
    Conditions of Approval for the project. As mitigated, the Board found that
    domestic water service impacts and fire flow impacts will be reduced to less
    than significant levels.
    “As further Conditions Of Approval, before it can obtain Design
    Review/Tentative Map Approval, Martha is required to ‘work with the
    MMWD to make final water system design improvement plans and financial
    arrangements necessary to meet MMWD domestic service requirements and
    fire flow requirements specified by the Tiburon Fire District pursuant to the
    Uniform Fire Code. The applicant shall comply with the [MMWD’s]
    standards as required.’ Also, before the County can issue any building,
    grading or construction permits Martha must first obtain ‘approval of
    reduced fire flow requirements from the TFPD’ (as permitted in the 2007
    California Fire Code) by implementing structural enhancements to proposed
    residences, including but not limited to: ‘Upgrades to building sprinkler
    systems’; ‘Utilizing non-combustible exterior building materials (Mitigation
    Measure 5.7- 8(b)’ and; ‘[L]imit the size of proposed houses (total allowable
    square footage) as needed to meet fire flow requirements.’ (Mitigation
    Measure 5.7-8(b).)
    “The court rejects [plaintiffs’] contention and finds the requirements
    imposed by the County, as verified by the relevant agencies (MMWD and
    TFPD), provide substantial evidence to support the FEIR’s conclusion that
    the impacts to domestic water pressure and fire flow are reduced to less than
    significant levels. (Guidelines, § 15091, subd. (b).)”
    94
    CEQA requires the public agency to adopt a “reporting or monitoring
    program . . . in order to mitigate or avoid significant effects on the
    environment.” (§ 21081.6, subd. (a)(1).) Plaintiffs insist the County failed to
    adopt a mitigation monitoring and reporting plan that “adequately addresses
    the Project’s fire flow impacts” and would “ensure that the Project’s adopted
    mitigation measures would be carried out and enforced.”
    The adequacy of a mitigation monitoring program is evaluated
    according to the “rule of reason,” which is deemed satisfied if the program is
    “reasonably feasible.” (Lincoln Place Tenants Assn. v. City of Los Angeles
    (2007) 
    155 Cal.App.4th 425
    , 446; Rio Vista Farm Bureau Center v. County of
    Solano (1992) 
    5 Cal.App.4th 351
    , 380.)
    Plaintiffs insist that nothing requires Martha to “actually implement
    any mitigation.” This may be literally true, but it ignores logic and defies
    common sense. If Martha does not work with—and satisfy—the local water
    and fire authorities, the County will not issue the required permits. This
    carrot-and-stick approach is established and accepted.38 (See Practice under
    the California Environmental Act, supra, § 18:14, p. 18-13; Oakland Heritage
    Alliance v. City of Oakland, supra, 
    195 Cal.App.4th 884
    , 906 [“a condition
    requiring compliance . . . may be proper where it is reasonable to expect
    compliance ”].)
    Plaintiffs find fault with Mitigation Measure 5-7.7 because, while it
    directs Martha to work with water authority to “develop a water supply plan”
    that “shall clearly show the adequate water pressures would be provided to
    the new houses at the project site,” “there is no detail as to what the proposed
    38  We note that plaintiffs are in the anomalous position of relying on
    the Tiburon Fire Protection District to identify the problem, and then not
    trusting it to fix the problem.
    95
    ‘water supply plan’ would entail,” nor does it “identify what ‘adequate water
    pressures’ [should] be.” Apart from requiring a level of detail that is at odds
    with the fundamental concept of the EIR (Sierra Club v. County of Fresno,
    supra, 
    6 Cal.5th 502
    , 515 [“we do not require technical perfection or scientific
    certainty”]; Guidelines § 15151 [“An evaluation of the environmental effects
    of a proposed project need not be exhaustive”]), plaintiffs are assuming bad
    faith, if not actual incompetence, by responsible public agencies. Plaintiffs
    plainly do not believe that the local water authority will know what is an
    appropriate water pressure, nor can it be trusted to participate in
    formulating a bona fide and effective water supply plan. Similarly, plaintiffs
    plainly do not believe that the Tiburon Fire Authority either will know what
    is necessary for the protection of the community, or that it will not insist on
    those necessities, to the extent of blocking Martha’s acquisition of building
    permits.39 Nothing in CEQA authorizes an EIR to be held hostage to such
    unjustifiable suspicions.
    G. The Temporary On-Site Construction Road
    Buried in Impact 5.1-9—“Project Impacts Related to Project Site
    Emergency Access”—is a matter that the private plaintiffs find objectionable.
    There relevant portions are as follows:
    “Road and Driveway Grades—–The maximum allowable grade for
    private roads and driveways is 18 percent. TPFD will allow grades up to
    21 percent if the applicant can demonstrate to TFPD’s satisfaction that there
    is no feasible way to reduce the driveway grade to 18 percent and TFPD
    39   Moreover, as Martha points out, any water supply system must
    satisfy the requirements of the California Fire Code.
    96
    determines it can serve the project. When grades exceeding 18 percent are
    necessary, grades of a maximum of 21percent are allowed for a maximum
    length of 200 feet within any 1,000-foot section of the driveway. Grades
    exceeding 18 percent must be paved with grooved, textured concrete to
    provide adequate traction. In addition, when the TFPD approves grades over
    18 percent, a higher standard of building sprinklers is required as well as
    restrictions on building materials (i.e., no wood siding). [¶] . . . [¶]
    “The temporary construction access road would have a 25 percent
    maximum grade. Although the construction access road is not intended for
    everyday traffic, and is not required for emergency access to the project site,
    the TFPD is concerned that requiring construction vehicles delivering heavy
    construction materials to travel on road grades that exceed maximum
    standard of 18 to 21 percent would create a safety hazard. The TFPD staff
    has stated that the District’s response vehicles may not be able to utilize the
    construction access road in an emergency because the 25 percent slope/grade
    of the construction access road exceeded the District’s road grade limit of
    18 to 21 percent. The TFPD is concerned that an accident resulting from use
    of the construction access road would increase the risk of an incident at a
    location that would be difficult for TFPD personnel and equipment to access.
    “The project sponsor submitted two letters with the application that
    address the feasibility of using the proposed temporary construction access
    road for construction vehicle access during site grading and preparation and
    building construction. Ghilotti Construction Company, a company with a
    long history of residential project construction in Marin County, stated that
    they reviewed the proposed temporary construction access road with a
    maximum 25 percent inclined grade, and that in their opinion the road would
    be adequate for the primary construction access for the project provided the
    97
    following recommendations are followed:
    “The actual staging for building the temporary 1,600-foot-long
    construction access road may require staging points every 400 to 500 feet and
    may initially require the use of Ridge Road for access to the project site.
    “Install and securely anchor some type of barrier (temporary K-rail,
    Metal Beam Guard Rail, etc.) on the outboard and downward edges of all
    road curves.
    “As a precautionary measure, install an emergency stop/crash cushion
    array located in the center of the Forest Glen cul-de-sac.
    “One-way radio control access to the construction access road shall be
    maintained during construction activity.
    “Redhorse Construction Inc., a construction company with extensive
    experience in residential construction in Marin County, also reviewed the
    proposed design of the temporary construction access road and the letter
    prepared by the Ghilotti Construction Company. Redhorse Construction
    concluded that the temporary construction access road design appeared to be
    suitable for use as access to the upper areas of the project site from Forest
    Glen Court for the purposes of individual lot development and residence
    construction. Redhorse Construction endorsed the four recommendations of
    Ghilotti Construction Company and further recommended:
    “The erection of construction speed limit signs on the road.
    “The formulation of written access protocols for construction access
    road use.
    “Adoption of emergency vehicle access procedures as part of the overall
    site safety program.
    “Letters written by the two construction companies conclude that the
    proposed temporary construction access road design would be feasible for
    98
    construction vehicle access during site development and home construction.
    Implementation of Ghilotti Construction and Redhorse Construction
    companies’ recommendations would establish access protocols for
    construction access road use, meter activity to one construction vehicle at a
    time, limit equipment speeds on the road, provide additional safety barriers
    on the road turns, and an emergency stop/crash cushion. In addition the
    formulation and adoption of emergency vehicle access procedures would
    provide a planned response to an incident anywhere on the project site.
    Implementation of all the recommendations would not eliminate the
    possibility of an accident, but implementation would reduce the risk of a
    serious accident to a less-than-significant level.
    “The TFPD believes the applicant’s proposal to keep the temporary
    construction access road as a possible means of egress from the project site in
    an emergency would constitute a hazard for vehicles because the road is too
    steep to serve as a safe secondary means of emergency egress from the
    Easton Point development. In addition, the temporary construction access
    road was not designed or intended to safely handle traffic without protocols,
    metering and overall use supervision. Therefore allowing the use of the
    construction access road for egress in an emergency would constitute a
    significant safety risk and would be a significant impact.” [¶] . . . [¶]
    “For the reasons stated above (driveway widths, needed turnouts,
    excessive road grade for the construction access road), the project would
    result in a significant impact to emergency access.
    “Mitigation Measure 5.1-9 Revise the PDP to provide turnouts per
    TFPD requirements for driveways. Post all turnouts with ‘no parking’ signs.
    Close the temporary construction access road to all use after cessation of
    construction, unless specifically approved by the TFPD for emergency use.
    99
    “Significance After Mitigation Implementation of Mitigation
    Measure 5.1-9 would reduce the project’s impact to emergency access to a
    less-than-significant level.
    “Responsibility and Monitoring The applicant would be responsible
    for design and installation of these measures in accordance with Marin
    County and TFPD standards. Marin County would be responsible for
    construction permitting, inspecting, and completion verification.” (Fns.
    & original italics omitted.)
    Plaintiffs contend the EIR “offers no analysis of the safety impacts
    associated with the specter of heavy construction vehicles traversing the
    nearly one-third mile segment at a grade over four times the County
    standard.” Moreover, “while the road poses obvious dangers to those who use
    it, it will also pose unassessed dangers to the community. The upper section
    of the road will pass through existing landslide areas. The area proses an
    extreme fire hazard from dead and dry undergrowth and dense vegetation
    needing only an ignition source, such as from a truck accident, to spark a fire
    storm. . . . The road would also be constructed contiguous to public open
    space trails, posing risks to pedestrians and others.” Finally, the EIR had “no
    analysis or any consideration whatsoever to the safety of [the] extreme grade
    in inclement weather conditions.”
    Judge Chou accurately summarized the tenor of plaintiffs’ argument,
    the fatal flaw in its underlying premise, and why it had to be rejected:
    “[Plaintiffs ask] the court to believe that heavy construction vehicles
    are at risk of careening into public spaces and thoroughfares, endangering
    pedestrians, bicyclists and drivers. There is nothing remotely in the record to
    support such a scenario. The construction access road does not intersect
    100
    Paradise Drive,[40] and it will not be used by the public. . . . Only the new
    residential street, Forest Glen Court, intersects Paradise Drive on the
    northeastern portion of the project. The construction access road is confined
    to Martha’s property and there is no evidence that the construction access
    road will interfere with hikers using authorized trails.[41] [¶] . . . [¶]
    “Here, it is the use of the road, not its construction, that [plaintiffs
    identify] as creating a significant environmental impact. But the
    administrative record does not contain substantial evidence showing that this
    aspect of the project [the construction access road] will worsen environmental
    hazards that are already present on the site. The planned construction
    access road will do nothing to exacerbate the steep grades already existing in
    the terrain. To the contrary, the record evidence shows the developer
    adopted procedures and improvements to substantially lessen the safety risks
    to drivers and workers who will use that road during all phases of the project.
    While the safety of the drivers and workers using that construction access
    road is a legitimate workplace concern, the Court finds that the safety issues
    raised by [plaintiffs] do not constitute a physical change in the environment
    that is reviewable under CEQA.
    “Further, to the extent CEQA review is concerned with the effect of a
    project on public health and safety, there is no legal authority that requires
    CEQA review of the safety risks posed by the existing environment to the
    40  To refresh, Paradise Drive is the sole route on the northern side of
    the Tiburon Peninsula leading into the Town. It has one lane in each
    direction, is heavily travelled, and almost completely developed with
    residential housing.
    41  Although it seemed to be an open question at the time, it is now
    settled that there are no “authorized” public access trails on the Martha
    property. (See fn. 10, ante.) As already mentioned, the County may
    subsequently establish hiking trails in the open space acreage.
    101
    workers who are building the project. A similar claim was rejected in Parker
    Shattuck Neighbors v. Berkeley City Council (2013) 
    222 Cal.App.4th 768
     . . . .
    [¶] . . . [¶]
    “Here, as in Parker Shattuck, the persons at risk from using the
    construction access road are the workers only. The use of the above-grade
    road for construction purposes does not impact the public generally, and
    consideration of these risks to a particular group of people, rather than to the
    public in general, is not a CEQA concern. Also, any safety risk will cease
    once the project is completed and the workers leave. (See Saltonstall[,
    supra,] 
    234 Cal.App.4th 549
    , 584 [EIR need not consider how the safety of
    persons at the site of the project’s downtown sports arena may be affected
    since crowd safety is not an environmental effect of the project].)
    “The County went beyond the requirements of CEQA to discuss this
    issue, and should not be penalized for being more comprehensive than CEQA
    demands. Based on the record and the authorities discussed, the Court
    concludes that CEQA does not require the FEIR to analyze the potential
    safety risks to workers on the project that may arise from using the
    construction access road in building the development, as this does not
    constitute a significant environmental impact subject to CEQA.” (Italics
    omitted.)
    Plaintiffs make no mention of any of the authorities cited by Judge
    Chou, much less try to distinguish them or show them inapposite. Plaintiffs
    point to no authority contradicting Judge Chou’s conclusion that “there is no
    legal authority that requires CEQA review of the safety risks posed by the
    existing environment to the workers who are building the project.” Thus,
    plaintiffs tacitly accept the starting point of his reasoning—that “it is the use
    of the road, not its construction” which agitates them.
    102
    Plaintiffs do not dispute as inaccurate any of Judge Chou’s
    topographically-related conclusions, specifically: (1) that the proposed
    construction access road will be entirely within the property limits; (2) that,
    when built, it will not be accessible to, or used by, the public; (3) that it will
    not intersect any existing public street; (4) there will be no danger to civilian
    pedestrians on the property (see fn. 41, ante), and; (5) that the road will exist
    only during construction. Thus, plaintiffs must accept that the road will be
    gone when the residences are sold, and therefore will be no danger when
    families move in.
    Plaintiffs have no answer for Martha’s trenchant argument:
    “[Plaintiffs] note . . . that some of the road would be in a landslide area. But
    nothing suggests the road itself would increase landslide risks, and
    landslides were evaluated in the EIR and, with mitigation, found not to be
    significant. [Plaintiffs] also vaguely reference fire. But nothing suggests that
    the road poses a fire risk, and the EIR evaluated fire risks and found impacts
    would be less than significant. . . . To the extent that any landslide or fire
    risks exist, they are existing conditions on the Property.” For our part, we
    are impressed that neither the Town nor the plaintiffs ever challenged the
    EIR’s treatment of either “Landsliding” or the “Woodland Fire Hazard.”
    Most significantly, plaintiffs make no attempt to disprove Judge Chou’s
    conclusions that (1) “the administrative record does not contain substantial
    evidence showing that this aspect of the project will worsen environmental
    hazards that are already present on the site,” and (2) the administrative
    record does contain substantial evidence that Martha “adopted procedures
    and improvements to substantially lessen the safety risks to drivers and
    workers who will use that road during all phases of the project.” (Emphasis
    added.)
    103
    The Parker Shattuck court noted that “In general, CEQA does not
    regulate environmental changes that do not affect the public at large.”
    (Parker Shattuck Neighbors v. Berkeley City Council, supra, 
    222 Cal.App.4th 768
    , 782.) As authority, the Parker Shattuck court cited Mira Mar Mobile
    Community v. City of Oceanside (2004) 
    119 Cal.App.4th 477
    , 492, where the
    court stated that “Under CEQA, the question is whether a project will affect
    the environment of persons in general, not whether a project will affect
    particular persons.” Plaintiffs’ invocation of the potential fire danger is an
    obvious attempt to escape this principle. We find it unavailing.
    If there were such a danger from use of the access road, it would be
    natural for it to attract the attention of the local fire authority. However,
    even the comments from the Tiburon Fire Protection District cited in
    plaintiffs’ brief, deal only with the individual safety of persons (including
    their own) using the road. There is not a single mention of any possibility of
    fire generated within the site endangering nearby residences. Moreover,
    Martha points out that the District’s expressed concerns related to the
    original road design, not the redesigned version.
    It is clear that plaintiffs do not believe the conclusion of the two
    construction firms and one traffic expert that such a road was feasible and
    could be made safe. But the issue of whether that conclusion was credible is
    not for the courts, but only the Marin County Board of Supervisors, as the
    agency approving the project.
    Judge Chou observed that “The County went beyond the requirements
    of CEQA . . . and should not be penalized for being more comprehensive than
    CEQA demands.” Our examination of the administrative record has more
    than confirmed that sentiment. (See footnote 24, and text accompanying
    footnote 18, ante.)
    104
    Some Concluding Observations
    It may be wondered why, if our review is de novo, we have quoted the trial
    judge’s statement of decision at such length. There are two reasons.
    The first is a general consideration. “[T]he superior courts in all counties
    with a population of more than 200,000 shall designate one or more judges to
    develop expertise in” handling CEQA cases. (§ 21167.1, subd. (b).) Such cases
    “shall [have] preference over all other civil actions.” (Id., subd. (a).) Thus, if a
    CEQA case reaches us (where it also has calendar preference) the chances are that
    it has been addressed by a judge who is not a novice and may have been laboring
    under considerable time constraints. Nevertheless, as shown in this case, we
    invariably see a statement of decision that dwarfs those we see in other
    administrative mandamus cases. It is foolish to believe the reviewing court is not
    going to look at it with less than a good deal of respect—as we do with Judge
    Chou’s statement here.
    The second reason is specific and practical. Many issues under CEQA are
    questions of whether substantial evidence in the administrative record supports the
    challenged agency decision. When a trial court has concluded that there is
    substantial evidence, and identified precisely what it is, a reviewing court is going
    to presume that the trial court’s decision is correct. And the reviewing court is
    naturally going to look at what the trial court has identified as such supporting
    evidence. As shown here, it is pointless for appealing counsel to argue the issue de
    novo. The only hope for prevailing on appeal is to meet the issue head on, and
    demonstrate why the evidence identified by the trial court does not constitute
    substantial evidence.
    In 2009, in the first of what would be three appeals, this court wrote: “It is
    probably a truism that since adoption of the California Environmental Quality
    Act . . . every developer has at some point before construction starts ground his
    105
    teeth or clenched her fists in frustration while enduring the often lengthy process
    leading to certification of an environmental impact report . . . for the project.”
    (Schellinger Brothers v. City of Sebastopol, supra, 
    179 Cal.App.4th 1245
    , 1249.)
    And as we went on to describe in the third appeal, it was a “development ensnared
    in a bureaucratic and politically charged morass that saw the certification of an
    EIR stymied for years.” (Schellinger Bros. v. Cotter (2016) 
    2 Cal.App.5th 984
    , 987.)
    There, five years.
    Similar concerns came to be expressed by some members of the Supreme
    Court. While delay was not a concern for the majority in Center for Biological
    Diversity v. Department of Fish & Wildlife, supra, 
    62 Cal.4th 204
    , it was for Justice
    Chin, in dissent. A majority of the Supreme Court held that the EIR was defective
    in two respects. Justice Chin disagreed that the EIR was deficient on those points,
    but it is the matter of delay that is relevant here.
    Justice Chin noted that “work on the current EIR began around 2005. After
    some five years of work, public comment, and revisions, the final EIR was certified
    in 2010.” (Center for Biological Diversity v. Department of Fish & Wildlife, supra,
    
    62 Cal.4th 204
    , 247 (dis. opn. of Chin, J.).) That was only the beginning. Five
    years later, “this appeal will end, and the writ will issue. At some point after that,
    the EIR will have to be revised, with the necessary period of public comment,
    etc. . . . Then it is predictable that yet more litigation will follow the finalization of
    the new EIR. Given the glacial pace of litigation, this will easily take years.”
    (Id. at p. 254 (dis. opn. of Chin, J.).)
    Justice Chin concluded with a warning worthy of Cassandra: “We have
    ‘caution[ed] that rules regulating the protection of the environment must not be
    subverted into an instrument for the oppression and delay of social, economic, or
    recreational development and advancement.’ ” (Center for Biological Diversity v.
    Department of Fish & Wildlife, supra, 
    62 Cal.4th 204
    , 253, quoting Citizens of
    106
    Goleta Valley v. Board of Supervisors, supra, 
    52 Cal.3d 553
    , 576 (dis. opn. of Chin,
    J.).) Every member of the court agreed that “CEQA is not intended as a population
    control measure.” (Center for Biological Diversity v. Department of Fish & Wildlife,
    supra, 
    62 Cal.4th 204
    , 220; id. at pp. 245, 254 (dis. opn. of Chin, J.).) However, for
    Justice Chin—and Justice Corrigan, who shared his concern (id. at p. 244 (conc. &
    dis. opn. of Corrigan, J.)—CEQA litigation threatened to become “a never-ending
    battle of attrition with ever-changing targets for project opponents to aim for.” (Id.
    at p. 245 (dis. opn. of Chin, J.).) “Delay can become its own reward for project
    opponents. . . . [T]his is a recipe for paralysis. But CEQA is not meant to cause
    paralysis.” (Id. at p. 254 (dis. opn. of Chin, J.).)
    This case vindicates the worst of Justice Chin’s fears.
    He was dealing with a proposed project that would over 20 years house
    almost 21,000 people on 12,000 acres. The scope of Martha’s project has always
    been immensely more modest. In fact, since the 1976 Judgment, Martha appears
    to have never sought to build more than 43 units on the property. We’ll say it
    again—43 single-family residences. Not a steel mill by a major river. Not a new
    municipal airport. Forty-three suburban homes.
    This dispute is almost as old as CEQA itself. When finally certified in 2017,
    the EIR had been more than 20 years in the making, ballooning to almost three
    times the recommended maximum size of 300 pages. And now it is 2022, five more
    years later.
    CEQA was meant to serve noble purposes, but it can be manipulated to be a
    formidable tool of obstruction, particularly against proposed projects that will
    increase housing density. (Comment, A Twisted Fate: How California’s Premier
    Environmental Law Has Worsened the State’s Housing Crisis and How To Fix It
    (2022) 49 Pepperdine L. Rev. 413, 467 [“CEQA has not aged well, as the wrong
    people have discovered the right ways to make CEQA serve their own interests”];
    107
    Hernandez, California’s Environmental Quality Act Lawsuits and California’s
    Housing Crisis (2018) 24 Hastings Environ. L. J. 21, 23 [“The top [CEQA] lawsuit
    targets remain infill housing and . . . plans to increase housing densities”],
    25 [“CEQA lawsuit abuse is worsening California’s housing crisis”].) One
    knowledgeable attorney came to the depressing conclusion that “[n]ew housing
    projects were the most frequent target of CEQA lawsuits,” and “the percentage of
    CEQA lawsuits against new housing units” has even been increasing in recent
    years. (Id at p. 29, italics added.) From her experience, a CEQA lawsuit
    “provide[s] a uniquely powerful legal tool to block, delay, or leverage economic and
    other agendas,” and “is now the tool of choice for resisting change that would
    accommodate more people in existing communities.” (Id. at pp. 41, 40.)
    All of these developments and observations are vindicated in this woeful
    record before us.
    It must be tough enough when the opposition is purely private. However,
    when private opposition is joined with official hostility, CEQA becomes an even
    more fearsome weapon. When the project proponent faces sustained private
    opposition, plus the combined animus of two levels of local government, the
    temptation to throw in the towel must be overwhelming.
    Something is very wrong with this picture.
    DISPOSITION
    The judgment is affirmed.
    108
    _________________________
    Richman, Acting P. J.
    We concur:
    _________________________
    Stewart, J.
    _________________________
    Mayfield, J. *
    Tiburon Open Space Committee v. County of Marin (A159860)
    *Judge of the Mendocino Superior Court, Judge Cindee Mayfield,
    sitting as assigned by the Chief Justice pursuant to article VI, section 6 of the
    California Constitution.
    109
    Trial Court:                        Marin County Superior Court
    Trial Judge:                        Honorable James T. Chou
    Attorney for Plaintiffs and         Jeffer Mangels Butler & Mitchell
    Appellants, Tiburon Open Space      LLP, Matthew D. Hinks; Mintz
    Committee:                          Levin Cohn Ferris Glovsky and
    Popeo P.C., Jonathan Welner
    Attorney for Defendants and         Brian E. Washington, County
    Respondents, County of Marin:       Counsel, Brian C. Case, Deputy,
    Brandon W. Halter, Deputy
    Attorney for Appellant, Town of     Burke, Williams & Sorensen,
    Tiburon:                            LLP, Benjamin L. Stock, Kevin D.
    Siegel
    Attorney for Real Party in          Cox, Castle & Nicholson LLP,
    Interest, The Martha Company:       Michael H. Zischke, Andrew B.
    Sabey, James M. Purvis.
    110