Sierra Club v. Tahoe Regional Planning Agency , 840 F.3d 1106 ( 2016 )


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  •                   FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    SIERRA CLUB; FRIENDS OF            Nos. 14-15998
    THE WEST SHORE,                         14-16513
    Plaintiffs-Appellants,
    D.C. No.
    v.                2:13-cv-00267-JAM-EFB
    TAHOE REGIONAL
    PLANNING AGENCY,                      OPINION
    Defendant-Appellee.
    Appeal from the United States District Court
    for the Eastern District of California
    John A. Mendez, District Judge, Presiding
    Argued and Submitted April 12, 2016
    San Francisco, California
    Filed November 2, 2016
    Before: J. Clifford Wallace, Mary M. Schroeder,
    and N. Randy Smith, Circuit Judges.
    Opinion by Judge Schroeder
    2                     SIERRA CLUB V. TRPA
    SUMMARY*
    Environmental Law
    The panel affirmed the district court’s summary judgment
    and award of costs in favor of Tahoe Regional Planning
    Agency, a bi-state land use and environmental resource
    planning agency for the Lake Tahoe Region, on
    environmental organizations’ claims that the environmental
    impact statement for TRPA’s Regional Plan Update did not
    comply with the requirements of the Regional Planning
    Compact between California and Nevada.
    The panel held that plaintiffs had standing and their
    claims were ripe. Applying a standard similar to the standard
    for evaluating an environmental impact statement under the
    National Environmental Policy Act, the panel held that
    TRPA’s environmental impact statement and Regional Plan
    Update adequately addressed the localized effects of the
    runoff created by the amount of development permitted under
    the Update. TRPA’s analysis of the effects of concentrating
    development in “community centers” was not arbitrary or
    capricious and did not violate Compact article VII(a)(2)(A)
    by failing to address significant environmental impacts of the
    Regional Plan Update. The panel also held that TRPA’s
    assumptions regarding best management practices and
    whether they would reduce water quality impacts of
    concentrated development under the Regional Plan Update
    were not arbitrary or capricious and were supported by
    *
    This summary constitutes no part of the opinion of the court. It has
    been prepared by court staff for the convenience of the reader.
    SIERRA CLUB V. TRPA                      3
    substantial evidence. The panel affirmed the district court’s
    award of costs.
    COUNSEL
    Trent W. Orr (argued) and Wendy S. Park, Earthjustice, San
    Francisco, California, for Plaintiffs-Appellants.
    Whitman F. Manley (argued) and Howard F. Wilkins III,
    Remy Moose Manley LLP, Sacramento, California; John L.
    Marshall, Tahoe Regional Planning Agency, Stateline,
    Nevada; for Defendant-Appellee.
    Kamala D. Harris, Attorney General; Daniel L. Siegel,
    Supervising Deputy Attorney General; Nicole U. Rinke,
    Deputy Attorney General; Sacramento, California; for
    Amicus Curiae California Resources Agency.
    Cassandra P. Joseph, Senior Deputy Attorney General; Office
    of the Attorney General, Carson City, Nevada; for Amicus
    Curiae Nevada Department of Conservation and Natural
    Resources.
    Thomas Watson, City Attorney; Nira Doherty, Assistant City
    Attorney; City of South Lake Tahoe, South Lake Tahoe,
    Nevada; for Amici Curiae City of South Lake Tahoe,
    California; El Dorado County, California; Placer County,
    California; Douglas County; Nevada; Carson City and
    County, Nevada; and Washoe County, Nevada.
    Lewis S. Feldman and Kara L. Thiel, Feldman McLaughlin
    Thiel LLP, Zephyr Cove, Nevada, for Amici Curiae Lake
    Tahoe Community College, South Shore Chamber of
    4                  SIERRA CLUB V. TRPA
    Commerce, North Lake Tahoe Chamber of Commerce, Sierra
    Nevada Association of Realtors, Incline Village Board of
    Realtors, Lake Tahoe Visitors Authority, Tahoe Douglas
    Visitors Authority, South Tahoe Alliance of Resorts, and
    Barton Health.
    OPINION
    SCHROEDER, Circuit Judge:
    INTRODUCTION
    The Lake Tahoe Region is an area of unmatched beauty
    surrounding the largest alpine lake in North America. It first
    caught the world’s attention with the 1960 Winter Olympics
    at Squaw Valley, when the area became a recreation
    destination and home to a rapidly expanding population. It
    has since become the focus not only of admiration for the
    lake’s beauty and clarity, but of litigation over the efforts to
    preserve them. See, e.g., Suitum v. Tahoe Reg’l Planning
    Agency, 
    520 U.S. 725
    (1997); People v. Tahoe Reg’l
    Planning Agency, 
    766 F.2d 1308
    , 1310 (9th Cir. 1985); Sierra
    Club v. Tahoe Reg’l Planning Agency, 
    916 F. Supp. 2d 1098
    ,
    1105 (E.D. Cal. 2013).
    This case concerns the Regional Plan Update (“RPU”)
    that the Tahoe Regional Planning Agency (“TRPA”) adopted
    in 2012 after more than ten years of work. Plaintiffs, The
    Sierra Club and Friends of the West Shore, are
    environmentalist organizations that challenged the
    environmental impact statement (“EIS”) for the RPU. They
    now appeal the district court’s summary judgment in favor of
    TRPA.
    SIERRA CLUB V. TRPA                        5
    The RPU generally restricts future development to areas
    that are already developed, and sets forth the amount of
    further development that will be permitted in those areas in
    the future. The precise nature of that development is to be
    determined in Area Plans to be adopted later.
    Plaintiffs’ principal contentions in this appeal are that the
    RPU fails adequately to address the localized effects of the
    runoff created by the amount of development permitted, and
    that the RPU improperly assumes that best management
    practices (“BMP”s) can be utilized to achieve the planning
    goals, in light of TRPA’s poor record of enforcing BMPs in
    the past.
    We also must consider TRPA’s challenge to standing and
    ripeness. While there will doubtless be more litigation
    concerning subsequent Area Plans, Plaintiffs’ interests in the
    lake are affected by the RPU, and they will have no future
    opportunity to challenge the policies the RPU adopts. We
    therefore hold that Plaintiffs have standing to assert claims
    that are ripe.
    On the merits, however, we conclude that the district
    court properly entered summary judgment in favor of TRPA.
    The draft EIS drew criticisms that necessitated substantial
    revisions, but the final EIS for the RPU adequately addressed
    localized impacts on soil conservation and water quality.
    Notably, while California had strenuously objected to certain
    aspects of the draft EIS, particularly with respect to the
    localized impacts of runoff, both California and Nevada now
    urge approval of the plan, as evaluated in the final EIS. We
    also hold that TRPA reasonably concluded that, in light of
    anticipated improvements in BMP maintenance, the
    6                   SIERRA CLUB V. TRPA
    development permitted in the RPU would have less than a
    significant effect on water quality.
    Our analysis must take place against the background of
    past efforts to maintain the pristine quality of the lake, so we
    begin with an historical summary.
    HISTORICAL BACKGROUND OF TRPA’S 2012
    REGIONAL PLAN UPDATE
    Lake Tahoe is located in the northern Sierra Nevada
    Mountains, and covers 191 square miles. The Lake Tahoe
    Region comprises 501 square miles, including the lake. The
    Region encompasses the Lake Tahoe basin, a watershed
    situated between the main crest of the Sierra Nevada and the
    Carson mountain ranges. The lake’s outlet is the Truckee
    River, running from the north end of Lake Tahoe to Pyramid
    Lake in Nevada. The basin was acquired by the United States
    in the mid-1800s, but later in the century, private owners
    acquired much of the land and converted it to agricultural use,
    as well as beginning the resort industry at the south end of the
    lake. See Richard J. Fink, Public Land Acquisition for
    Environmental Protection: Structuring a Program for the
    Lake Tahoe Basin, 18 Ecology L.Q. 485, 493, 498–99 (1991).
    Two-thirds of the region is in California and one-third is
    in Nevada. In the late twentieth century, the population of the
    region expanded by more than 70%, with the most rapid
    expansion, as described in the draft EIS, occurring in the
    1970s.
    The attraction is the lake’s size, depth, and distinctive
    blue color. The lake’s clarity is the result of the lack of algae.
    See League to Save Lake Tahoe v. Tahoe Reg’l Planning
    SIERRA CLUB V. TRPA                        7
    Agency, 
    739 F. Supp. 2d 1260
    , 1264 (E.D. Cal. 2010), aff’d
    in part & vacated in part, 469 F. App’x 621 (9th Cir. 2012).
    In the region’s natural state, its poorly developed soils
    contribute relatively small amounts of sediment to the lake,
    and biological communities, known as stream environment
    zones (“SEZ”s), remove sediments and nutrients. See Fink,
    18 Ecology L.Q. at 494.
    Human activity in the late twentieth century, however,
    began increasing nutrients and sediments in the lake, bringing
    about a decline in clarity. Deposits tied to human activity
    were to blame. See Holly Doremus, Reinvigorating the
    Union of Wonder and Power, 24 Va. Envtl. L.J. 281, 285
    (2005). According to scientists, the loss of clarity was tied to
    nitrogen and phosphorous related to soil erosion, sewage
    discharge, and runoff from impervious developments. 
    Id. More recently,
    scientists added to the list of threats
    atmospheric deposits caused by rain washing nitrogen from
    automobile exhaust down into the lake. 
    Id. at 285–86;
    see
    also Tahoe-Sierra Pres. Council, Inc. v. Tahoe Reg’l
    Planning Agency, 
    322 F.3d 1064
    , 1070 (9th Cir. 2003)
    (explaining the process of “eutrophication,” by which
    nutrients encourage the growth of algae, which makes the
    water greener and less clear and depletes oxygen in the water,
    to the detriment of fish and other animals). As this court has
    explained, artificial disturbance of the land, especially in
    steeper areas and areas near streams and other wetlands,
    greatly increases soil erosion and the flow of nutrients into
    the lake. 
    Tahoe-Sierra, 322 F.3d at 1070
    . There have been
    other problems as well. As one district court put it, “[t]he
    Lake Tahoe Basin has also suffered from degradation of other
    measures of water and air quality. Many of the aesthetic and
    recreational values of the region have been impaired,
    including scenery, noise, and the ability to use the lake for
    8                   SIERRA CLUB V. TRPA
    recreational purposes.” 
    League, 739 F. Supp. 2d at 1265
    .
    These declines have been caused by onshore development,
    piers and other structures in the lake, and emissions from
    motorized watercraft. 
    Id. The visible
    decline in water clarity led to efforts to reduce
    discharges into the lake, beginning with prohibition of
    sewage into any waters of the Tahoe basin. See Fink,
    18 Ecology L.Q. at 504. In 1968, California and Nevada
    entered into the first Regional Planning Compact, which
    Congress approved in 1969. 
    Suitum, 520 U.S. at 729
    . The
    Compact created TRPA to serve as a bi-state land use and
    environmental resource planning agency for the Lake Tahoe
    Region. See id.; Compact art. I(b). TRPA’s governing board
    includes a California delegation and a Nevada delegation,
    with delegation members appointed by various state, county,
    and city entities. Compact art. III(a)–(g). TRPA appoints an
    advisory planning commission and employs an executive
    officer and other staff and legal counsel. Compact arts. III(h),
    IV(a).
    The original Compact also adopted a system, known as
    the “Bailey system,” for classifying the environmental
    sensitivity of the lands, with limits for the amount of
    development on each type. See 
    Tahoe-Sierra, 322 F.3d at 1070
    . That system remains as part of TRPA’s regulatory
    scheme, but was not enforced with sufficient strictness to
    protect the lake and its environment. As this court explained,
    TRPA’s regulatory scheme, incorporating the Bailey system,
    “was diluted in its implementation by numerous exceptions
    permitting development on sensitive lands.” 
    Id. at 1070–71.
    In other words, some people thought the 1969 Compact was
    not sufficiently anti-growth. See 
    People, 766 F.2d at 1310
    .
    SIERRA CLUB V. TRPA                        9
    In 1980, Congress therefore approved Compact
    amendments, requiring TRPA to adopt a Regional Plan, and
    barring any development exceeding environmental threshold
    carrying capacities. 
    Suitum, 520 U.S. at 729
    . The Compact,
    as amended, requires that the Regional Plan include a land
    use transportation plan, a conservation plan, a recreation plan,
    and a public services and facilities plan. Compact art. V(c).
    Pursuant to the 1980 Compact, TRPA has adopted multiple
    threshold standards for, inter alia, water and air quality,
    fisheries, and vegetation.
    TRPA adopted its first Regional Plan in 1984, but that
    was challenged in court by the State of California, leading to
    a reissuance of the Plan, adding a land classification system
    that rated individual land parcels on their suitability for
    development. The Individual Parcel Evaluation System, or
    “IPES,” rated the land on a scale of 0 to 1150, and only those
    above an “IPES Pass-Fail Line” were eligible to apply for
    permission to develop parcels.
    Between 1987 and 2010, the 1987 Regional Plan was both
    amended and litigated. See 
    Tahoe-Sierra, 322 F.3d at 1073
    –74. In 1997, TRPA adopted the “Environmental
    Improvement Program” as part of the Regional Plan to
    improve water quality, yet, according to the 2012 RPU, the
    primary pollutants affecting water clarity and quality
    remained sediment, nitrogen, and phosphorous.
    The draft EIS for the RPU now before us concluded that
    the 1987 Plan was largely successful in slowing growth and
    making new development more environmentally compatible
    by “tightly controlling” what could be built on vacant land.
    It concluded that “the Tahoe region is now virtually at full
    10                SIERRA CLUB V. TRPA
    build-out, with less than 10% of the region’s development
    rights remaining.”
    Unfortunately, as the draft EIS explained, buildings and
    other uses put into place before the 1987 plan continue to
    cause environmental problems. Hence, the 2012 RPU was
    intended to address these issues. As described in the draft
    EIS, the 2012 RPU was intended to “repair damage of the
    past, while also promoting redevelopment of Tahoe’s
    localized town centers to accelerate obtainment of threshold
    standards with more environmentally appropriate and
    attractive structures.”
    The RPU was developed by the Regional Plan Update
    Committee of the TRPA governing board over a period of
    nearly ten years. Indeed, the process took so long that
    Nevada passed a bill calling for the state’s withdrawal from
    TRPA if the plan were not updated in a timely manner. Nev.
    Senate Bill 271 (2011).
    The RPU, adopted by TRPA’s board on December 12,
    2012, and effective February 9, 2013, was meant to be a
    general governing document for development and
    environmental protection in the region, leaving more local
    governance to Area Plans. Such Area Plans must conform to
    the RPU.
    The RPU provided for the concentration of new and
    existing development into “community centers.”           It
    encouraged concentrated development by allowing TRPA
    itself, or local governments, through the “Area Plans,” to
    raise density, height, and coverage limits in community
    centers. “Coverage” refers to the coverage of land with
    impervious material such as asphalt and concrete. The RPU
    SIERRA CLUB V. TRPA                       11
    emphasized the Total Maximum Daily Load (“TMDL”)
    model, which aims to reduce the total flow of certain
    pollutants into the lake.
    REGULATORY HISTORY OF THE RPU AND ITS
    EIS
    The events that occurred during the regulatory process
    following the release of the draft EIS and draft RPU, and
    leading to the issuance of the final EIS and final RPU, are
    critical to the proper understanding of the issues in this case.
    The draft EIS and draft RPU were released in April 2012,
    with a public comment period open for 63 days, from April
    25 to June 28, 2012. The draft RPU and the draft EIS were
    released for public comment on April 25, 2012, followed by
    a series of meetings conducted by both California and Nevada
    to make recommendations for amendments. TRPA’s
    governing board voted to incorporate the revisions
    recommended by the RPU Committee in August 2012, and
    the final EIS was issued October 24, 2012.
    The RPU was undertaken concurrently with two related
    planning efforts, a Regional Transportation Plan and a
    Sustainable Communities Strategy. A separate EIS was
    produced for these two projects. In addition, in 2011,
    California, Nevada, and the Environmental Protection
    Agency (“EPA”) approved the TMDL model, a water quality
    restoration plan that aims to reduce the total flow of certain
    pollutants into the lake. None of these efforts are affected
    directly by this litigation, but they are central to TRPA’s
    analysis in the RPU and EIS.
    12                SIERRA CLUB V. TRPA
    During the public comment period on the draft RPU and
    EIS, TRPA received comments that fill a large volume of the
    final EIS. The California Attorney General submitted
    extended comments.          She expressed concerns about
    delegation of project approval via Area Plans, weakening of
    coverage requirements, and allowance of potentially
    significant amounts of new development. With regard to land
    coverage, the Attorney General criticized the draft EIS’s
    assumption that coverage could be calculated on a Basin-wide
    basis without regard to location and concentration of
    coverage. California was worried about concentrated
    localized pollution in the lake. The Attorney General also
    questioned TRPA’s allowance of coverage transfers and
    mitigation across the boundaries of hydrologically related
    areas, i.e., across different watersheds. With respect to the
    effects of concentrated development, she stated that
    watershed-level or even parcel-level analysis, rather than
    region-wide analysis, was more consistent with the Bailey
    system and with available science. The Attorney General
    also questioned the draft EIS’s reliance on BMPs. She stated
    that because the track record for maintaining BMPs at Lake
    Tahoe was poor, the EIS “should disclose the history of
    neglected BMP maintenance and disclose the impacts of its
    alternatives assuming that past patterns of neglect continue
    into the future.”
    Plaintiffs also submitted extensive comments addressing
    many of the same issues. They expressed concerns that the
    draft EIS, while analyzing impacts of coverage transfer on
    Lake Tahoe itself, did not consider “soils, vegetation,
    streams, fisheries and invertebrates within streams, and
    sensitive habitat.” They pointed out that non-degraded soils
    perform many functions, including “infiltration, erosion
    prevention, vegetation growth, and nutrient cycling.”
    SIERRA CLUB V. TRPA                     13
    Plaintiffs complained that the draft EIS, in considering
    coverage in developed areas, failed to analyze the effects on
    streams and the nearshore of concentrating coverage.
    According to Plaintiffs, the draft EIS “fails to acknowledge
    studies that show that urban coverage is the most detrimental
    coverage and fails to analyze the impact of increased and
    concentrated urban coverage in the Basin.”
    Several commenters, including the California Tahoe
    Conservancy and representatives of the EPA, expressed
    concern about “the consistency between and coordinated
    implementation of” the TMDL, the proposed RPU, and water
    quality management.
    The final EIS included TRPA’s responses to all of the
    comments received during the public comment period. While
    generally concluding that the draft EIS was adequate, TRPA
    made several significant changes to the draft RPU in response
    to comments.
    TRPA’s “Master Response 3” addressed the California
    Attorney General’s and Plaintiffs’ comments criticizing the
    coverage standards established on a Region-wide basis and
    permitting transfers of coverage allowances between
    hydrologically related areas. TRPA’s response described the
    relevant comments as expressing
    concern about the programmatic approach to
    coverage assessment presented in the Draft
    EIS, including the application of coverage
    standards on a Region-wide versus a parcel-
    by-parcel basis; potential undercounting of
    coverage by excluding consideration of some
    ‘soft’ coverage in the Basin; and the
    14                  SIERRA CLUB V. TRPA
    differences in impact between hard and soft
    coverage.
    TRPA explained that in response to these comments, it had
    decided, among other things, to continue to prohibit coverage
    transfers between hydrologically related areas, rather than to
    start allowing such transfers in the RPU. TRPA pointed out,
    however, that Region-wide, rather than parcel-by-parcel or
    sub-watershed scale analysis was appropriate because the
    RPU was regional in scope, and the Bailey method did not
    require parcel-by-parcel analysis.
    In “Master Response 4,” addressing comments on
    coordination between the RPU and the TMDL, TRPA
    explained that it had made changes. The final RPU “includes
    important new features that address the relationship between
    the Regional Plan and the TMDL, specifically in the use of
    the TMDL water quality improvement plan and TMDL
    reporting information in the re-certification of Area Plans . . .
    and revisions that create alignment in reporting
    requirements.”
    In other Master Responses, TRPA addressed the
    comments expressing concern about the effects of more
    concentrated development on water quality.
    [C]omments suggest that policies
    incentivizing additional concentration of
    development in community centers could
    have localized adverse impacts on water
    quality, including on nearshore and tributary
    conditions. Concerns are expressed that the
    Draft EIS analysis does not adequately
    account for the fact that community centers
    SIERRA CLUB V. TRPA                       15
    are near the Lake, pollutant loading may be
    higher in community centers than in outlying
    areas, and BMPs may not be adequate to
    mitigate the impact.
    TRPA stated its conclusion that the concerns were not
    warranted, describing the draft EIS as “adequate as
    presented,” and stating that “policies that incentivize transfers
    of development and additional concentration of coverage in
    specific areas would not result in significant impacts to water
    quality.” Nevertheless, TRPA made modifications to the
    draft RPU, which it said were required in order to “narrow the
    scope of changes to coverage policies.” In addition, TRPA
    prepared a “Pollutant Load Reduction Model” (“PLRM”)
    stormwater modeling simulation, used to estimate localized
    water quality impacts of concentrating development within
    community centers. It added the PLRM to the final EIS in
    order to better gauge the effect of concentrated development
    on the lake.
    TRPA made other significant changes to the draft RPU as
    well. In response to comments on the impact of revised
    height and density allowances for community centers, the
    final RPU included more scenic protections. In response to
    comments about the feasibility of a program of incentives for
    the transfer of development rights from sensitive and outlying
    areas into designated community centers, the final RPU
    retained the transfer incentive ratios set forth in the draft
    RPU, but made revisions such as limiting allowances for
    alternative transfer ratios for Stream Restoration Plan Areas.
    TRPA also revised RPU provisions regarding banked assets
    such as development rights in order to strengthen regulation
    of their use. In response to comments about development on
    recreation-designated lands, TRPA revised the draft RPU to
    16                 SIERRA CLUB V. TRPA
    reduce the areas to be re-designated and to require additional
    planning and regulatory approvals through Area Plan
    conformance review prior to any development on land
    designated “Resort Recreation.” In connection with concerns
    about exhaust emissions caused by vehicles traveling
    additional miles because of additional development, the draft
    RPU was revised in several ways, including the establishment
    of additional limitations for the future expansion of
    community centers.
    The California Attorney General had made significant
    critical comments about the draft EIS’s reliance on BMPs that
    had failed to be effective in the past. The final EIS included
    a description of numerous efforts that were to be made to
    improve the situation. It concluded that “[b]ased on the
    current maintenance requirements and practices, education
    efforts, and enforcement requirements . . . , it is valid to
    assume that implementation of BMPs would be effective.”
    In response to comments about the approval process for
    Area Plans, TRPA made some changes to the draft RPU’s
    provisions regarding approval of Area Plans. TRPA added an
    appeals process for all delegated projects, and it reduced the
    maximum size of projects that could be reviewed and
    approved by other agencies through an Area Plan.
    In summary, in response to negative comments,
    particularly from the State of California and Plaintiffs, TRPA
    made material revisions to the draft RPU and the draft EIS.
    It retained the prohibition against coverage transfers between
    hydrologically related areas. It coordinated the RPU more
    closely with the TMDL. It cut back the proposed increases in
    maximum allowable coverage for redevelopment projects in
    community centers. It added more scenic protections, and it
    SIERRA CLUB V. TRPA                     17
    cut back draft RPU provisions regarding development on
    recreation-designated land. It strengthened the process for
    revising Area Plans. TRPA, specifically in response to
    concerns about the concentrated effects of increased runoff,
    added the PLRM stormwater modeling simulation to the final
    EIS.
    TRPA issued the final EIS on October 24, 2012. The
    final RPU was adopted by TRPA’s governing board on
    December 12, 2012, and took effect on February 9, 2013.
    Plaintiffs filed this lawsuit in the federal district court on
    February 11, 2013. The district court granted TRPA’s motion
    for summary judgment in April 2014, and these appeals by
    plaintiff environmentalist organizations followed.
    This court has received amicus briefs in support of
    affirming the district court by (1) City of Lake Tahoe, El
    Dorado County, Placer County, California, Douglas County,
    Carson City and County, and Washoe County, Nevada; and
    (2) Lake Tahoe Community College, South Shore Chamber
    of Commerce, North Lake Tahoe Chamber of Commerce,
    Sierra Nevada Association of Realtors, Lake Tahoe Visitors
    Authority, Tahoe Douglas Visitors Authority, South Tahoe
    Alliance of Resorts and Barton Health. Perhaps most
    significantly, the California Natural Resources Agency and
    Nevada Department of Conservation and Natural Resources
    have filed a joint amicus brief in support of TRPA.
    STANDING AND RIPENESS
    TRPA contends that Plaintiffs lacked standing to bring
    this challenge to the impacts from the concentration of
    development, and that their claims are unripe, because no
    increase in coverage had yet been approved pursuant to any
    18                 SIERRA CLUB V. TRPA
    Area Plan. We disagree. Plaintiffs satisfy the injury-in-fact
    requirement for standing to challenge the EIS because they
    have concrete interests in the Lake Tahoe Region. See W.
    Watersheds Project v. Kraayenbrink, 
    632 F.3d 472
    , 485 (9th
    Cir. 2010). Their challenge is ripe because any violation of
    the Compact or applicable environmental laws resulting from
    the RPU and EIS has already taken place; Plaintiffs did not
    need to wait for Area Plans to be approved before bringing
    this suit. See 
    id. at 486.
    STANDARD OF REVIEW
    We review the district court’s ruling on summary
    judgment de novo. Protect Our Cmtys. Found. v. Jewell,
    
    825 F.3d 571
    , 578 (9th Cir. 2016). Since TRPA is not a
    federal agency, the Compact, and not the Administrative
    Procedure Act (“APA”), provides the applicable standard of
    review of TRPA actions.
    Under the Compact, “judicial inquiry shall extend only to
    the questions of whether [TRPA’s legislative] act or decision
    has been arbitrary, capricious or lacking substantial
    evidentiary support or whether the agency has failed to
    proceed in a manner required by law.” Compact art. VI(j)(5).
    This standard is similar to review under the APA, which
    provides that a federal agency action must be upheld unless
    it is “‘arbitrary, capricious, an abuse of discretion, or
    otherwise not in accordance with law.’” San Luis & Delta-
    Mendota Water Auth. v. Jewell, 
    747 F.3d 581
    , 601 (9th Cir.
    2014) (quoting 5 U.S.C. § 706(2)(A)), cert. denied, 
    134 S. Ct. 948
    & 950 (2015); 
    League, 739 F. Supp. 2d at 1267
    .
    SIERRA CLUB V. TRPA                     19
    ANALYSIS OF PLAINTIFFS’ CONTENTIONS
    I. Localized Effects of Concentrated Development
    Plaintiffs contend that the EIS violated Compact article
    VII(a)(2)(A) by failing to take a hard look at impacts on soil
    conservation and water quality in the localized “community
    center” areas where concentrated development is directed.
    We conclude that the EIS’s analysis of the effects of
    concentrating development was not arbitrary or capricious,
    and sufficiently addressed significant environmental impacts
    of the RPU.
    TRPA may not amend the Regional Plan unless it finds
    that the Plan, “as amended, achieves and maintains the
    [threshold standards].” TRPA Code § 4.5; Sierra 
    Club, 916 F. Supp. 2d at 1105
    . Article VII of the Compact requires
    that “when acting upon matters that have a significant effect
    on the environment,” TRPA must “[p]repare and consider a
    detailed environmental impact statement.” Compact art.
    VII(a)(2). This EIS must include, among other things:
    “(A) The significant environmental impacts of the proposed
    project; [and] (B) Any significant adverse environmental
    effects which cannot be avoided should the project be
    implemented.” Compact art. VII(a)(2)(A)–(B). The EIS
    required by the Compact is similar to the EIS required by the
    National Environmental Policy Act (“NEPA”), 42 U.S.C.
    § 4332(2)(C), and to the reporting required by the California
    Environmental Quality Act, Cal. Pub. Res. Code § 21100.
    Decisions under NEPA are authoritative. League, 739 F.
    Supp. 2d at 1266, 1274; see also Glenbrook Homeowners
    Ass’n v. Tahoe Reg’l Planning Agency, 
    425 F.3d 611
    , 615
    (9th Cir. 2005) (stating that NEPA does not directly apply to
    TRPA). An EIS is a procedural requirement with two
    20                SIERRA CLUB V. TRPA
    purposes: (1) ensuring that agencies carefully consider
    information about significant environmental impacts, and
    (2) informing the public of relevant information. Idaho Wool
    Growers Ass’n v. Vilsack, 
    816 F.3d 1095
    , 1102 (9th Cir.
    2016); Lands Council v. McNair, 
    629 F.3d 1070
    , 1075 (9th
    Cir. 2010).
    The draft EIS conducted a region-wide analysis of the
    impacts of increased coverage (meaning coverage of land
    with concrete, asphalt, etc.). The draft EIS stated:
    Incentivizing coverage transfers and
    redevelopment by allowing up to 70 percent
    coverage on high-capacity developed parcels
    in [community centers] would increase
    coverage in these target areas. However, the
    additional coverage allowed on [these lands]
    would be directly offset by coverage
    transferred from sensitive land or more than
    offset on an acre-for-acre basis by transfers
    from high-capability land, resulting in an
    overall reduction of coverage in the Region
    and, importantly, reduction of coverage from
    SEZs [Stream Environment Zones] and other
    sensitive lands.
    The draft EIS concluded that the proposed RPU (“Alternative
    3” of the five alternative actions analyzed by TRPA) would
    comply with the total allowable coverage for the Region as
    determined by the Bailey system and would have a “less-
    than-significant impact on coverage in the Region.” The draft
    EIS also concluded that Alternative 3 would have a “less than
    significant” impact on water quality.
    SIERRA CLUB V. TRPA                      21
    In response to comments on the importance of soil
    conservation at the local scale, TRPA explained that more
    localized analysis would be too speculative at that stage. The
    final EIS stated: “The Draft EIS evaluates coverage from a
    programmatic policy perspective, with a level of detail and
    degree of specificity appropriate to analysis of a Regional
    Plan; a parcel-by-parcel analysis would be neither feasible
    nor necessary.” TRPA further explained that even sub-
    watershed analysis was infeasible because the agency would
    be “forced to speculate where specific future projects would
    be proposed and where coverage would be removed.”
    As the district court concluded, the RPU’s general shift
    from the Bailey system, addressing coverage, to the TMDL
    model, aimed at water quality restoration, was within TRPA’s
    discretion. See Native Ecosystems Council v. Weldon,
    
    697 F.3d 1043
    , 1051 (9th Cir. 2012) (holding, in a NEPA
    case, that a court must be at its most deferential in reviewing
    an agency’s scientific determinations).
    Plaintiffs contend, however, that the EIS violated
    Compact article VII(a)(2)(A)’s requirement of environmental
    analysis by addressing only the general region-wide impacts
    of coverage changes, and failing to address the effects of
    concentrated development on local watersheds in community
    centers, where coverage is already high, even though
    Plaintiffs, as well as the California Attorney General,
    presented extensive evidence of these effects. Plaintiffs argue
    that they did not seek study of site-specific project impacts,
    but instead sought an analysis of the cumulative impacts of
    many projects over larger areas, such as watersheds or sub-
    watersheds. They contend that the public and decision
    makers had no opportunity to weigh tradeoffs between
    22                 SIERRA CLUB V. TRPA
    cumulative impacts of local soil loss and any environmental
    benefits of concentrated development.
    We can reject TRPA’s analysis of the effects of
    concentrating development in community centers only if it is
    arbitrary or capricious. See Compact art. VI(j)(5). It was not.
    The final EIS adequately addressed concerns raised about the
    draft EIS. As to water quality, the PLRM stormwater
    modeling simulation, which was included in the final EIS,
    addressed localized effects on those parts of the lake near
    community centers. As described in the final EIS, the PLRM
    simulation developed for the TMDL, part of the water quality
    restoration plan approved by California, Nevada, and the
    EPA, took into account available information. It incorporated
    data “on land use types, impervious coverage, and BMP
    implementation to generate estimates of fine sediment,
    nitrogen, and phosphorus loading and stormwater runoff” in
    order to “estimate the relative changes in pollutant loading
    that could occur within community centers.” With regard to
    water quality, the final EIS addressed effects of concentrated
    development on a localized scale similar to the one advocated
    by Plaintiffs. The final EIS adequately explained the basis
    for its conclusion that concentrating development in
    community centers would not result in more concentrated
    runoff. The final RPU also maintained the prohibition of
    transfers of coverage across watersheds. Under the TRPA
    Code and the final RPU, all transferred coverage must come
    from the same hydrologically related area. TRPA Code
    § 30.4.3.E.
    The final EIS also adequately addressed effects on soil
    conservation. In studying the proposed RPU, a region-wide
    plan, TRPA was not required to perform site-specific analysis
    of impacts on soil conservation. As TRPA stated in response
    SIERRA CLUB V. TRPA                       23
    to comments, evaluation of coverage at a more localized scale
    would occur, as part of the Area Plan process, prior to
    development taking place. See Friends of the Wild Swan v.
    Weber, 
    767 F.3d 936
    , 943 (9th Cir. 2014) (stating that agency
    must balance need for comprehensive analysis against
    considerations of practicality); Friends of Yosemite Valley v.
    Norton, 
    348 F.3d 789
    , 800–01 (9th Cir. 2003) (holding that
    deferral of site-specific analysis was proper under NEPA for
    program-wide EIS), clarified by 
    366 F.3d 731
    (9th Cir. 2004).
    In addition, as TRPA argues, the PLRM simulation includes
    soil conservation components.
    Contrary to Plaintiffs’ contention, the draft EIS addressed
    cumulative effects on biological resources. With regard to
    biological resources, the draft EIS also stated that Alternative
    3, the RPU, “would result in increased permeability, reduced
    urban runoff, and commensurate improvements in water
    quality, soil conditions, and habitat for vegetation and
    wildlife.” TRPA acted within its discretion in its choice of
    scientific methodology, see Alaska Survival v. Surface
    Transp. Bd., 
    705 F.3d 1073
    , 1088 (9th Cir. 2013), and its
    organization and presentation of information in the EIS, see
    Mont. Wilderness Ass’n v. Connell, 
    725 F.3d 988
    , 1002 (9th
    Cir. 2013). TRPA was not required to conduct additional
    scientific studies to determine an environmental threshold for
    conservation of soil at a local or watershed level before
    analyzing the impacts of region-wide coverage changes. See
    N. Plains Res. Council v. Surface Transp. Bd., 
    668 F.3d 1067
    ,
    1085 (9th Cir. 2011) (stating that an agency is not required to
    address every possible scientific uncertainty). The EIS’s
    analysis of the effects of concentrating development was not
    arbitrary or capricious, and did not violate Compact article
    VII(a)(2)(A) by failing to address significant environmental
    24                SIERRA CLUB V. TRPA
    impacts of the RPU. See Compact art. VI(j)(5); Protect Our
    Cmtys. 
    Found., 825 F.3d at 578
    .
    II. Best Management Practices
    Plaintiffs contend that TRPA improperly assumed,
    without adequate analysis and hence in violation of Compact
    article VII(a)(2)(A), that BMPs would reduce water quality
    impacts of concentrated development under the RPU even
    though TRPA has a poor track record of enforcing BMPs.
    We conclude that the EIS’s assumptions regarding BMPs
    were not arbitrary or capricious, and were supported by
    substantial evidence. See Compact art. VI(j)(5).
    The TRPA Code provides that BMPs “shall be applied to
    all public and privately owned lands.” TRPA Code § 60.4.2.
    BMPs are described in the 2012 Handbook of Best
    Management Practices, found in volume II of the Lake Tahoe
    Basin Water Quality Management Plan. TRPA Code
    § 60.4.2. The RPU requires the installation and maintenance
    of BMPs in accordance with the Handbook. The Handbook
    states that BMPs are practices “that reduce or prevent the
    pollutants of concern identified in the Lake Tahoe Total
    Maximum Daily Load (TMDL) and other pollutants from
    entering surface and ground waters.” The TRPA Code
    provides for temporary BMPs for construction sites,
    permanent BMPs for construction projects (as a condition of
    project approval), and retrofit BMPs. TRPA Code §§ 60.4.3,
    60.4.4.
    The TRPA Code and Handbook have several provisions
    relating to maintenance and enforcement. The Code requires
    that “BMPs shall be maintained to ensure their continued
    effectiveness.” TRPA Code § 60.4.9. The Code provides
    SIERRA CLUB V. TRPA                      25
    that TRPA shall enforce BMP project compliance programs,
    including the implementation and maintenance of temporary
    BMPs on construction sites and the application of permanent
    BMPs on projects. TRPA Code § 60.4.3. The Handbook
    provides that BMPs “are designed to reduce the impacts of
    stormwater pollutants and increased runoff on Lake Tahoe’s
    famed clarity. Without regular maintenance, BMPs lose their
    effectiveness, resulting in increased runoff and discharge of
    pollutants to Lake Tahoe.” The Handbook acknowledges,
    however, that maintenance of BMPs is “frequently
    neglected.” Accordingly, the Handbook states that building
    permits will require a BMP inspection and maintenance plan
    as a condition of approval, and land owners and managers
    will be required to keep inspection and maintenance logs.
    In its analysis of the effects of the RPU on water quality,
    the draft EIS concluded that the effects of increased coverage
    in community centers would be “less than significant”
    because the additional coverage “would be required to meet
    existing BMP standards to control potential increases in
    stormwater runoff and pollutant loading . . . , including
    maintenance requirements.” The draft EIS summarized
    existing policies regarding BMP requirements and stated that
    34% of land parcels in the Tahoe Region had obtained a BMP
    Certificate by installing BMPs that met TRPA requirements.
    The reliance on BMPs in the draft EIS drew critical
    comments. The California Attorney General commented that
    the EIS “should disclose [the Region’s] history of neglected
    BMP maintenance and disclose the impacts of its alternatives
    assuming that past patterns of neglect continue into the
    future.” Plaintiffs commented that for “longer term impacts
    related to increased coverage – more runoff and the increased
    pollutant loads from new construction – the alternatives that
    26                SIERRA CLUB V. TRPA
    allow more coverage need to have increased regulatory
    authority (and stable funding) for inspections and
    enforcement of coverage and BMP maintenance and
    operation requirements for . . . new projects.”
    The final EIS responded that steps had been taken to
    improve the situation and went on to explain what they were.
    The final EIS stated: “Based on the current maintenance
    requirements and practices, education efforts, and
    enforcement requirements summarized below, it is valid to
    assume that implementation of BMPs would be effective.”
    The final EIS then listed TRPA Code § 60.4.9, BMP
    Handbook Chapter 6, a Home Landscaping Guide for Lake
    Tahoe and Vicinity, and a contractor’s manual that is
    included in the curriculum of an annual BMP contractors
    workshop conducted by TRPA. The final EIS also stated that
    TRPA had received grant funding for BMP inspection, TRPA
    inspectors enforce temporary BMP maintenance during
    construction projects, TRPA had received grant funding for
    a residential BMP maintenance video, TRPA had received
    grant funding for the sending of BMP maintenance
    reminders, and there were pending grant proposals related to
    the enhancement of maintenance tracking. The final EIS
    further explained that the RPU encouraged the use of area-
    wide water quality treatment facilities, which could “lead to
    more efficient maintenance practices relative to conducting
    maintenance activities on many smaller and widely
    distributed parcels and sites.”
    TRPA thus contends on appeal that the EIS properly
    relied on BMPs and their effective implementation in support
    of its conclusion that concentrated development would have
    a less than significant impact on water quality. As TRPA
    points out, the 2012 BMP Handbook acknowledges past
    SIERRA CLUB V. TRPA                        27
    failures in maintenance and incorporates that experience into
    updated BMP guidelines. For example, according to the
    Handbook, project permits require a BMP inspection and
    maintenance plan, and land owners and managers are
    required to keep inspection and maintenance logs. TRPA
    also cites the public outreach programs listed in the final EIS
    as part of the agency’s efforts to improve BMP maintenance.
    See San Diego Navy Broadway Complex Coal. v. U.S. Dep’t
    of Def., 
    817 F.3d 653
    , 660 (9th Cir. 2016) (holding that courts
    may consider responses to comments for confirmation that an
    agency has taken a “hard look” at an issue). We must
    conclude that TRPA did not act arbitrarily and capriciously
    in relying on its plan to better implement and maintain BMPs.
    See Envtl. Prot. Info. Ctr. v. U.S. Forest Serv., 
    451 F.3d 1005
    , 1015–16 (9th Cir. 2006) (upholding an environmental
    assessment for a timber sale under NEPA); Forest Guardians
    v. U.S. Forest Serv., 
    329 F.3d 1089
    , 1099–1100 (9th Cir.
    2003) (upholding a planned monitoring program for grazing
    under the National Forest Management Act because it was
    rational for the Forest Service to conclude that despite past
    failures, monitoring should continue).
    Plaintiffs cite statistics regarding the relative lack of past
    success of TRPA’s BMP retrofit program. As TRPA argues,
    however, the RPU provides incentives for redevelopment and
    thus is designed to move properties from TRPA’s retrofit
    program into its mandatory permitting program for new
    development, which requires BMP maintenance plans and
    logs. TRPA reasonably relied on data in the record in
    concluding that despite the agency’s imperfect past
    enforcement of BMP maintenance, the RPU would have a
    less-than-significant effect on water quality. See Lands
    
    Council, 629 F.3d at 1076
    –77 (upholding a forest plan under
    the National Forest Management Act). Plaintiffs cite Friends
    28                  SIERRA CLUB V. TRPA
    of Back Bay v. U.S. Army Corps of Eng’rs, 
    681 F.3d 581
    , 589
    (4th Cir. 2012), where the court invalidated an environmental
    assessment under NEPA because a boat speed limit that an
    agency had not enforced was insufficient assurance that a
    project’s boating impacts on wildlife would be mitigated. In
    this case, TRPA provided significant assurances of future
    enforcement. TRPA’s assumptions regarding BMPs were
    supported by substantial evidence and are entitled to
    deference. See Ctr. for Biological Diversity v. Bureau of
    Land Mgmt., No. 14-15836, 
    2016 WL 4269899
    at *9 (9th Cir.
    Aug. 15, 2016).
    III.    Costs
    The district court awarded costs pursuant to TRPA Rule
    10.6.2, which provides that any agency costs in the
    preparation of the administrative record for a legal action be
    borne by the plaintiffs. Plaintiffs contend that the rule
    unfairly makes them responsible for such costs even if they
    prevail. Plaintiffs, however, did not prevail before the district
    court, nor have they prevailed on appeal. Accordingly, we do
    not need to address whether TRPA Rule 10.6.2 is a
    statutorily-authorized exception to the general rule, set forth
    in Federal Rule of Civil Procedure 54(d)(1), that costs should
    be allowed to the prevailing party. Whether Rule 10.6.2 was
    authorized by Compact art. VIII is a question for another day.
    Because we affirm the district court’s decision in favor of
    TRPA, the district court did not err in imposing costs, nor did
    it abuse its discretion in denying Plaintiffs reimbursement for
    certain costs. See Kalitta Air L.L.C. v. Cent. Tex. Airborne
    Sys. Inc., 
    741 F.3d 955
    , 957 (9th Cir. 2013) (per curiam).
    SIERRA CLUB V. TRPA                      29
    Plaintiffs’ request for judicial notice is denied as moot.
    AFFIRMED.