North Coast Rivers Alliance v. Westlands Water District , 174 Cal. Rptr. 3d 229 ( 2014 )


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  • Filed 7/3/14
    CERTIFIED FOR PUBLICATION
    IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA
    FIFTH APPELLATE DISTRICT
    NORTH COAST RIVERS ALLIANCE et al.,
    F067383
    Plaintiffs and Appellants,
    (Super. Ct. No. 12CECG00237)
    v.
    WESTLANDS WATER DISTRICT et al.,                               OPINION
    Defendants and Respondents;
    UNITED STATES BUREAU OF
    RECLAMATION,
    Real Party in Interest and Respondent.
    APPEAL from a judgment of the Superior Court of Fresno County. James M.
    Petrucelli, Judge.
    Law Offices of Stephan C. Volker, Stephan C. Volker, Alexis E. Krieg and
    Daniel P. Garrett-Steinman for Plaintiffs and Appellants.
    Pioneer Law Group, Andrea A. Matarazzo, Jeffrey K. Dorso; Kronick, Moskovitz,
    Tiedemann & Girard, Thomas W. Birmingham and Harold Craig Manson for Defendants
    and Respondents.
    No appearance for Real Party in Interest and Respondent United States Bureau of
    Reclamation.
    -ooOoo-
    In February 2012, Westlands Water District and its related distribution districts
    (together Water Districts or respondents)1 entered into two-year, interim renewal
    contracts with the United States Bureau of Reclamation (the Bureau) relating to the
    Bureau’s ongoing provision of Central Valley Project (CVP) water to Water Districts.
    The purpose of the interim renewal contracts was to continue the existing terms for water
    delivery in advance of the parties’ anticipated execution of new, long-term (25-year)
    renewal contracts, which process was awaiting the Bureau’s completion of environmental
    documentation necessary for the execution of such long-term agreements. When Water
    Districts approved the interim renewal contracts, they made specific findings that the
    renewals were exempt from the California Environmental Quality Act (CEQA; Pub.
    Resources Code, § 21000 et seq.).2 Accordingly, Water Districts did not undertake their
    own environmental review prior to such approvals. Thereafter, North Coast Rivers
    Alliance, Friends of the River, Save the American River Association, the California
    Sportfishing Protection Alliance and the Winnemem Wintu Tribe (collectively
    petitioners) filed a petition for writ of mandate in Fresno County Superior Court,
    contending that the interim renewal contracts were not exempt from CEQA and that
    Water Districts should have undertaken a full environmental review. The trial court
    disagreed and denied the petition for writ of mandate. Petitioners have appealed from the
    judgment of dismissal. Based on the record before us, we conclude that the matters
    contemplated in the interim renewal contracts were exempt from CEQA, including under
    1      The related districts were Westlands Water District Distribution District No. 1
    (Westlands Distribution District No. 1) and Westlands Water District Distribution
    District No. 2 (Westlands Distribution District No. 2) (together the Distribution Districts).
    2      All further statutory references are to the Public Resources Code unless otherwise
    indicated.
    2.
    the statutory exemption for ongoing pre-CEQA projects (Guidelines,3 § 15261) and the
    categorical exemption for the continued operation of existing facilities at the same level
    of use (Guidelines, § 15301). Therefore, we affirm the judgment below.
    FACTS AND PROCEDURAL HISTORY
    The Contracting Parties
    The subject agreements were entered into by the Bureau and Water Districts, each
    of which are public entities. The Bureau is the federal agency that operates the CVP,
    administers CVP water and enters into contracts to provide that water to contractors such
    as Water Districts (known as water service contracts). Water Districts are public entities
    established for the purpose of receiving CVP water and distributing that water to end-
    users (i.e., farmers) for beneficial use (i.e., irrigation to grow crops) on lands within
    Water Districts’ boundaries. (See, e.g., Wat. Code, § 37800 et seq. [relating to Westlands
    Water District].)
    Westlands Water District, by far the largest of respondent districts, serves over
    600,000 acres of farmland on the west side of the San Joaquin Valley. Westlands Water
    District has had water service contracts in place with the Bureau since the 1960’s and,
    through such contracts, has had a right to receive approximately 1 million acre-feet of
    CVP water per year, subject to water availability and other factors.4 The other two
    respondents, Westlands Distribution District No. 1 and Westlands Distribution District
    No. 2, which were formed more recently (in 2000 and 2002 respectively), have acquired
    3        “Guidelines” refers to the administrative regulations implementing CEQA found
    in title 14, section 15000 et seq., of the California Code of Regulations, as authorized by
    Public Resources Code section 21083. The Secretary of the State Resources Agency is
    responsible for adopting guidelines and amendments thereto, based on recommendations
    from the Office of Planning and Research. (See § 21083, subds. (a), (e) & (f).)
    4       This number is a general approximation for background purposes. Subsequently
    herein, we will provide more specifics concerning the contracts and the particular acre-
    feet of water involved.
    3.
    additional CVP water rights by assignments from other water districts serving the area.5
    Westlands Distribution District No. 1 and Westlands Distribution District No. 2, as the
    holders of those assigned water rights, are now the contracting parties for purposes of
    entering into renewals thereof.
    With respect to Water Districts’ existing contractual rights to receive CVP water,
    the Bureau and Water Districts are willing to enter into long-term renewal contracts, but
    that prospect has been delayed by the Bureau’s failure to complete the required
    environmental documentation. In the meantime, the parties have agreed to a series of
    interim renewal contracts in order to continue water deliveries on the same terms as
    before. The six 2-year, interim renewal contracts entered into by the parties in 2012 are
    the subject of the instant appeal.
    The CVP
    Because the water that is the subject of the contracts between Water Districts and
    the Bureau is diverted, stored and delivered through CVP facilities (and is generally
    referred to as CVP water), we now explain what the CVP is and how it operates so that
    the issues before us may be seen within their larger context. The history and scale of the
    CVP are well-chronicled in the case law. (See, e.g, Westlands Water Dist. v. U.S. (9th
    Cir. 2003) 
    337 F.3d 1092
    , 1095-1096 (Westlands).) In providing this general overview
    of the CVP, we shall draw upon the record below as well as on publicly known facts
    regarding the CVP that are reported in the case law.
    The CVP is a federal reclamation project built within the major watersheds of the
    Sacramento and San Joaquin River systems and the Delta, providing water storage and
    distribution to the Central Valley of California. A recent federal opinion noted the
    5      Such assignments were purchased to increase flexibility and overall water
    availability, which factors are critical to Water Districts and to the farmlands served by
    them—especially in low rainfall years.
    4.
    following legal and factual background: “Reclamation projects are indispensible features
    of agriculture in the Western United States. ‘The Reclamation Act of 1902 set in motion
    a massive program to provide federal financing, construction, and operation of water
    storage and distribution projects to reclaim arid lands in many Western States.’
    [Citations.] … [¶] The Central Valley Project (‘CVP’) is ‘a system of dams, reservoirs,
    levees, canals, pumping stations, hydropower plants, and other infrastructure [that]
    distributes water throughout California’s vast Central Valley.’ [Citation.] The CVP was
    originally ‘taken over and executed’ by the United States under the Reclamation Act and
    was reauthorized by the Rivers and Harbors Act of 1937, Pub. L. No. 75-392, 
    50 Stat. 844
    , 850 (‘the CVP Act’). [Citation.]” (San Luis Unit Food Producers v. U.S. (9th Cir.
    2013) 
    709 F.3d 798
    , 801 (San Luis Unit).) The Bureau is the agency within the United
    States Department of the Interior charged with administering the CVP. (Westlands,
    
    supra,
     337 F.3d at p. 1096; San Luis Unit, 
    supra, at p. 801
    .)
    As built and operated, the CVP is “the nation’s largest water reclamation project
    and California’s largest water supplier.” (In re Bay-Delta etc. (2008) 
    43 Cal.4th 1143
    ,
    1154, fn. omitted.) It operates 21 reservoirs, 11 power plants, and 500 miles of major
    canals and aqueducts. With total storage capacity of more than 12 million acre-feet, the
    CVP delivers approximately 7 million acre-feet of water annually to over 250 water
    contractors, primarily for agricultural use in the Central Valley. (Ibid., fn. 1) The CVP
    “‘supplies two hundred water districts, providing water for about thirty million people,
    irrigating California’s most productive agricultural region and generating electricity at
    [numerous] power plants.’” (San Luis & Delta-Mendota Water Authority v. U.S. (9th Cir.
    2012) 
    672 F.3d 676
    , 682 (San Luis & Delta Mendota), quoting Westlands Water Dist. v.
    U.S. Dept. of Interior (9th Cir. 2004) 
    376 F.3d 853
    , 861.) The Bureau operates the CVP
    5.
    under water rights granted by the State Water Resources Control Board (SWRCB). (In re
    Bay-Delta, etc., supra, at p. 1154.)6
    In 1960, Congress authorized the construction of the San Luis Unit “‘as an integral
    part’” of the CVP (the San Luis Act; Pub.L. No. 86-488 (Jun. 3, 1960) 
    74 Stat. 156
    ).7
    (San Luis Unit, supra, 709 F.3d at p. 802.) The San Luis Act states that the “‘principal
    purpose’” of the Unit is to furnish water for irrigation. (Ibid.) The San Luis Unit of the
    CVP includes the San Luis Dam and the San Luis Reservoir, along with a system of
    canals, channels and pumping plants. The San Luis Reservoir was constructed on the
    west side of the San Joaquin Valley to store surplus water from the Sacramento-San
    Joaquin Delta and to provide water for irrigation and other purposes primarily in Merced,
    Fresno and Kings Counties. (Westlands, supra, 337 F.3d at p. 1096.)8 A pumping
    station at the Delta’s southern end draws varying amounts of water that is conveyed by
    canals to the San Luis Unit and Reservoir. (Ibid.)9 Water from the San Luis Unit of the
    CVP is delivered to contractors (e.g., Water Districts), who then provide water to the end-
    users such as farmers on the west side of the Central Valley. (Ibid.; see also San Luis
    Unit, supra, at p. 802.) The interim renewal contracts at issue in the present case relate to
    the ongoing provision of water by the Bureau to Water Districts from the San Luis Unit
    of the CVP.
    6      Additionally, the CVP shares certain facilities with the California State Water
    Project. The two projects have been operated “in an increasingly coordinated manner.”
    (San Luis & Delta-Mendota, supra, 672 F.3d at p. 683.)
    7     The San Luis Unit is also part of the State Water Project, and certain facilities of
    the Unit are jointly operated by the Bureau and the State of California.
    8      In addition to meeting irrigation needs, the San Luis Unit of the CVP provides
    water to several cities.
    9       More specifically, “[t]he Tracy Pumping Plant pumps water from the Sacramento-
    San Joaquin Delta into the Delta-Mendota Canal. The Delta-Mendota Canal, located
    south of the … Delta, channels water along the west side of the San Joaquin Valley for
    use in the San Luis Unit and Reservoir.” (Westlands, supra, 337 F.3d at p. 1096.)
    6.
    We note in passing that when the San Luis Unit was authorized by Congress in
    1960, it was on the condition that adequate drainage from the area served by that Unit
    was to be provided. (Firebaugh Canal Co. v. U.S. (9th Cir. 2000) 
    203 F.3d 568
    , 570.)
    The reason for such a requirement was the common knowledge that “[i]rrigation and
    drainage are inherently linked” and “[a]ny water project that brings fresh water to an
    agricultural area must take the salty water remaining after crops have been irrigated away
    from the service area.” (Id. at p. 571.) The statutory obligation to provide for such
    drainage was placed squarely on the United States Department of the Interior. (Ibid.; see
    also Firebaugh Canal Water Dist. v. U.S. (9th Cir. 2013) 
    712 F.3d 1296
    , 1298-1303.)
    That obligation remains unfulfilled.10 One of the long-term consequences of lack of
    adequate irrigation drainage is a buildup of salt content in the soil and groundwater,
    which poses a particular problem in much of the agricultural acreage served by Water
    Districts, since those lands sit on a shallow bed of hard or impervious clay and the water
    has nowhere to move or drain. Hence, a drainage solution will eventually be needed in
    order to maintain future agricultural productivity in such areas.
    The Bureau Operates the CVP Subject to Environmental Laws and Other Factors
    In the original 1937 CVP Act, Congress prioritized the purposes of the CVP as
    “‘first, for river regulation, improvement of navigation, and flood control; second, for
    irrigation and domestic uses; and, third, for power.’” (San Luis Unit, supra, 709 F.3d at
    p. 801, quoting the 1937 CVP Act, § 2.) In 1992, Congress passed the Central Valley
    Project Improvement Act (the CVPIA; Pub.L. No. 102-575 (Oct. 30, 1992) 
    106 Stat. 4706
    ), which, among other things. amended the original CVP Act to reprioritize the
    objectives of the CVP. The CVPIA elevated the protection of fish and wildlife to one of
    10     In recent years, efforts have been made by the Bureau to develop and implement a
    drainage plan, but Congressional inertia (as to funding) has apparently slowed progress.
    (Firebaugh Canal Water Dist. v. U.S., 
    supra,
     712 F.3d at pp. 1299-1303.)
    7.
    the main purposes of the CVP, alongside of irrigation and domestic uses, and it reserved
    800,000 acre-feet of CVP water for environmental and wildlife protection purposes.
    (CVPIA, §§ 3406(a) & (b)(2), 3404(c); see also In Re Bay-Delta etc., supra, 43 Cal.4th at
    p. 1154; San Luis Unit, supra, at pp. 801-802.)11 The CVPIA also expressly required the
    Bureau to operate the CVP to “meet all obligations under state and federal law, including
    but not limited to the Federal Endangered Species Act, [title] 16 [of the United States
    Code section] 1531, et seq., and all decisions of the California [SWRCB] establishing
    conditions on applicable licenses and permits for the project.” (CVPIA, § 3406(b).)12
    As this regulatory overview confirms, the Bureau operates the CVP and allocates
    CVP water subject to a comprehensive scheme of environmental statutes and regulations,
    including the environmental requirements of the CVPIA, the federal Endangered Species
    Act of 1973, and various state and federal regulations of Delta water flow and water
    quality. (San Luis & Delta-Mendota, supra, 672 F.3d at pp. 682-683 [noting the
    Bureau’s control of the CVP water is subject to “a plethora of federal statutes and
    11      One of the CVPIA’s stated legislative goals was “[t]o achieve a reasonable
    balance among competing demands for use of Central Valley Project water, including the
    requirements of fish and wildlife, agriculture, municipal and industrial and power
    contractors.” (CVPIA, § 3402(f).) Whether the CVPIA reasonably balances competing
    demands, or instead tilts the scales too far to one direction, is a legislative policy decision
    that is beyond the purview of this court.
    12     The reference to SWRCB’s decisions apparently relates to that agency’s authority
    to protect the state’s water resources and quality in connection with the issuance of water
    rights permits, which authority was outlined in United States v. State Water Resources
    Control Bd. (1986) 
    182 Cal.App.3d 82
    , 106-126. The CVPIA expressly alludes to this
    1986 opinion and to the SWRCB in regard to the regulation of water flow standards in
    the Delta. (CVPIA, § 3406(b)(1)(C) & (b)(7).) Under the Reclamation Act of 1902 (
    43 U.S.C. § 383
    ), which is still in effect, the Bureau is required to comply with state law in
    acquiring water rights for the diversion and storage of water by the CVP. (Westlands,
    supra, 337 F.3d at p. 1101.)
    8.
    regulations governing” such matters as “the CVP yield,” “water quality,” and “the impact
    of releases on the environment and wildlife”]; San Luis Unit, supra, 709 F.3d at p. 802.)
    Of course, another major factor in the Bureau’s task of allocating water to
    contractors (such as Water Districts) is annual precipitation. The Bureau’s water plan
    states: “[The Bureau] holds contracts with many water districts and municipalities which
    commit the agency to provide up to a maximum quantity of water in any particular year.
    Each year, [the Bureau] must determine, based on meteorological and hydrological
    conditions and other operational and institutional factors, how much water can actually
    be delivered to each district and municipality. This is called the allocation process.
    Allocations are usually expressed as a percentage of the maximum contract volumes of
    water prescribed in the contracts held between [the Bureau] and the various water
    districts, municipalities and other entities.” (U.S. Dept. Interior, Bureau of Reclamation,
    Central Valley Project Water Plan (2011) p. 4; CVP Water Plan.) However, in addition
    to considering the amount of water available from rainfall, expected snowpack runoff
    from the Sierra and reservoir storage, the Bureau also takes into account its obligations
    under environmental laws, which often significantly impact its determination of the
    amount of CVP water available to contractors.13
    Not infrequently, the Bureau must make its water allocation decisions during
    periods of drought. In its water service contracts with contractors, the Bureau includes
    standard provisions for the reduction of water quantities to contractors during a drought
    13     As noted in the Bureau’s CVP Water Plan: “[The Bureau] balances allocation of
    CVP water for agricultural, environmental, and municipal and industrial purposes. The
    complex task is driven by numerous factors, including hydrology, conditions as reported
    by [the California Department of Water Resources], storage in CVP reservoirs, input
    from other agencies and organizations, regulations, court decisions, biological opinions,
    environmental considerations, and operational limitations.” (CVP Water Plan, supra, at
    p. 3.)
    9.
    or water shortage.14 (San Luis Unit, supra, 709 F.3d at p. 802; Westlands, supra, 337
    F.3d at p. 1097.) Even in such dry years when contractors’ allocations must be reduced
    due to inadequate rain and snow, the amount of water that the Bureau allocates to
    contractors is further limited by the constraints or mandates imposed on the Bureau by
    the CVPIA and other environmental laws. In practice, CVP water is made available to
    Water Districts only after the Bureau’s obligations under environmental laws are satisfied
    and the rights of holders of senior water rights are met. (San Luis Unit, supra, at p. 802.)
    The Water Service Contracts and the Interim Renewals Thereof
    Water service contracts with the Bureau are the prescribed legal arrangement
    through which CVP water is provided to contractors. The purposes of water service
    contracts are to establish the rates and other terms for water delivery, to produce
    sufficient revenue to recover an appropriate share of the federal government’s capital
    investment, and to repay the Bureau’s annual operation and maintenance costs. (43
    U.S.C. § 485h(e).) Water service contracts are the mechanisms used to recover each
    contractor’s share of these costs as a condition for receiving CVP water. (Ibid.)
    Here, the original water service contract between the Bureau and Westlands Water
    District was entered into in 1963,15 and it remained in effect for a period of 40 years,
    commencing with the first delivery of water from the San Luis Unit to Westlands Water
    District. Under the 1963 water service contract, Westlands Water District was entitled to
    receive up to 1,008,000 acre-feet per year, with a reduction to 900,000 acre-feet per year
    after 1979. However, additional water had been provided by the Bureau under a 1968
    supplemental contract and by allocation decisions thereafter. In 1986, a stipulated court
    14     Water Districts point out that low supplies of water do not affect all contractors
    evenly, since some have senior rights to CVP water. During water shortages, Water
    Districts’ allocations are among those that the Bureau cuts first.
    15     At that point in time, the other respondent water districts did not yet exist.
    10.
    judgment (known as the Barcellos judgment) recognized that Westlands Water District
    was entitled to 250,000 acre-feet of water each year in addition to the 900,000 acre-feet
    per year indicated above (for a total of 1.15 million acre-feet per year). The 40-year
    period of the parties’ 1963 water service contract expired at the end of 2007. At that
    time, it was understood by both parties that the anticipated, long-term renewal of their
    water service contract would be for 1.15 million acre-feet of water. The 2012 interim
    renewal contract with Westlands Water District relates to this same 1.15 million acre-feet
    of water per year.
    In 1992, long before the expiration of Westlands Water District’s 1963 water
    service contract (as described above), the CVPIA was enacted into law. The CVPIA
    provided that the Bureau “shall,” upon request, renew existing long-term water service
    contracts for a period of up to 25 years,16 but only after the Bureau first completed
    preparation of a programmatic environmental impact statement (EIS) that examined the
    effects on the environment of implementing the CVPIA, including the effects on the
    environment of renewing the existing long-term water service contracts. (CVPIA,
    §§ 3404(c), 3409.) Until that environmental documentation was completed, the Bureau
    was authorized by the CVPIA to enter into interim renewal contracts of up to three years
    on the first occasion, and for successive interim periods of up to two years in length
    thereafter. (CVPIA, § 3404(c).)
    In 2007, when the original 1963 water service contract between the Bureau and
    Westlands Water District was about to expire, the Bureau had not yet completed its
    environmental documentation necessary for the execution of a long-term (25-year)
    renewal of the water service contract with Westlands Water District. Accordingly, at that
    time, Westlands Water District and the Bureau entered into a three-year, interim renewal
    16   The 1963 water service contract had originally provided for 40-year renewals.
    The CVPIA shortened the maximum renewal period to 25 years.
    11.
    of the water service contract for 1.15 million acre-feet of water. In 2010, Westlands
    Water District and the Bureau entered into a two-year, interim renewal contract on the
    same terms. In 2012, when the Bureau had still not completed its environmental
    documentation, the same parties entered into another two-year, interim renewal contract
    on the same terms. That two-year, interim renewal contract between Westlands Water
    District and the Bureau (contract No. 14-06-200-495A-IR3) is one of the six interim
    contracts at issue in the present appeal.
    The other five interim renewal contracts challenged by petitioners were entered
    into by the Distribution Districts—specifically, four were entered into by Westlands
    Distribution District No. 1 and one by Westlands Distribution District No. 2, which
    contracts are briefly summarized below.
    Westlands Distribution District No. 1 obtained an assignment of rights from
    Mercy Springs Water District to 6,260 acre-feet of CVP water, which represents a portion
    of Mercy Springs Water District’s rights under a water service contract entered into in
    1967 between the Bureau and Mercy Springs Water District. Beginning in 2000,
    Westlands Distribution District No. 1 entered into a series of interim renewal contracts
    with the Bureau for this water. The 2012 two-year, interim renewal contract between
    Westlands Distribution District No. 1 and the Bureau concerning this water (contract
    No. 14-06-200-3365A-IR13-B) is one of the contracts at issue in the present appeal.
    In 2004, Westlands Distribution District No. 1 obtained an assignment of 2,500
    acre-feet of CVP water from Centinella Water District, which rights had belonged to
    Centinella Water District pursuant to a 1977 water service contract with the Bureau.
    Since the assignment, Westlands Distribution District No. 1 entered into a series of
    interim renewal contracts with the Bureau concerning this water. The 2012 two-year,
    interim renewal contract between Westlands Distribution District No. 1 and the Bureau
    concerning this water (contract No. 7-07-20-W0055-IR13-B) is one of the contracts at
    issue in the present appeal.
    12.
    In 2005, Westlands Distribution District No. 1 was assigned 2,990 acre-feet of
    CVP water from Widren Water District, the rights to which had belonged to Widren
    Water District under a 1967 water services contract with the Bureau. Subsequent to the
    assignment, Westlands Distribution District No. 1 entered into a series of interim renewal
    contracts with the Bureau concerning this water. The 2012 two-year, interim renewal
    contract between Westlands Distribution District No. 1 and the Bureau concerning this
    water (contract No. 14-06-200-8018-IR13-B) is one of the contracts at issue in the
    present appeal.
    In 2007, Westlands Distribution District No. 1 entered into an agreement for the
    assignment of 27,000 acre-feet of CVP water from Broadview Water District. Broadview
    Water District had acquired the right to that volume of CVP water in a 1959 water service
    contract with the Bureau. Since the 2007 assignment, Westlands Distribution District
    No. 1 entered into a series of interim renewal contracts with the Bureau concerning this
    27,000 acre-feet of water, including the 2012 two-year, interim renewal contract (contract
    No. 14-06-200-8092-IR13), which is one of the contracts at issue in the present appeal.
    In 2003, Westlands Distribution District No. 2 entered into an agreement for the
    assignment of 4,198 acre-feet of CVP water from Mercy Springs Water District.
    Subsequent to that assignment, Westlands Distribution District No. 2 entered into a series
    of interim renewal contracts with the Bureau concerning this water, including the 2012
    two-year, interim renewal contract (contract No. 14-06-200-3365A-IR13-C). That 2012
    interim renewal contract is one of the contracts at issue in the present appeal.
    Water Districts’ Approvals of the 2012 Interim Renewal Contracts
    In December 2011, Water Districts approved the 2012 two-year, interim renewal
    contracts at issue in this appeal and, in doing so, found that such renewals were exempt
    from the requirements of CEQA for several reasons. Water Districts’ resolutions found
    that the interim renewal contracts merely involved the ongoing receipt and delivery of
    water on identical terms as the prior water service contracts, with no expansion of service
    13.
    and no new facilities constructed. Further, Water Districts found that, to the extent the
    interim renewal contracts involved any changes, such changes related solely to rates,
    dates and other minor administrative matters. On these and related factual grounds,
    Water Districts made specific findings that the renewals were exempt from CEQA,
    including under the “[o]ngoing” pre-CEQA project exemption (Guidelines, § 15261), the
    rate-setting exemption (Guidelines, § 15273) and the existing facilities exemption
    (Guidelines, § 15301).
    We note that the Bureau, prior to its approval of interim renewals, performed an
    environmental assessment under the National Environmental Policy Act of 1969 (NEPA;
    
    42 U.S.C. § 4321
     et seq.) concerning the two-year, interim renewal contracts that related
    to CVP water from the San Luis Unit provided to six particular contractors, including
    Westlands Water District. The Bureau made findings under NEPA of no significant
    impact. That is, the interim renewals were “not a major federal action that would
    significantly affect the quality of the human environment and an environmental impact
    statement is not required .…” (U.S. Dept. Interior, Finding of No Significant Impact
    (Feb. 2010) p. 1.)
    Petitioners’ CEQA Lawsuit
    Following the approvals of the 2012 interim renewal contracts by Water Districts,
    petitioners filed their CEQA lawsuit—a petition for writ of mandate—seeking to set aside
    the approvals based on alleged failure to comply with CEQA. Petitioners’ lawsuit
    alleged that no exemption to CEQA was applicable and that Water Districts were
    required to undertake environmental review of the interim renewal contracts prior to any
    approvals thereof. As to potential adverse effects on the environment of entering into the
    interim renewal contracts, petitioners claimed that the water rights at issue would involve
    the diversion (by the Bureau) of a substantial volume of water from the Delta, thereby
    further affecting water flows and water purity in the Delta and harming or endangering
    certain fish species within that fragile ecosystem. Additionally, petitioners alleged that
    14.
    Water Districts’ delivery of irrigation water to the lands served by Water Districts would
    contribute to a further buildup of contamination of the soils and water tables with salt,
    selenium and other pollutants. Since CEQA allegedly applied and was not followed by
    Water Districts, and because potentially significant environmental impacts were at stake,
    petitioners requested that the trial court set aside Water Districts’ approvals of the 2012
    interim renewal contracts.
    Trial Court’s Rulings
    After petitioners’ lawsuit was filed, Water Districts moved to dismiss on several
    procedural grounds, including failure to exhaust administrative remedies, lack of
    standing, and failure to join an indispensible party. The motion to dismiss was denied.
    The hearing on the merits of the petition for writ of mandate was held in the trial
    court on April 5, 2013. The parties filed trial briefs and appeared and presented oral
    argument. On April 16, 2013, the trial court issued its written order denying petitioners’
    petition for writ of mandate.
    In its written order, the trial court came to the same conclusions as Water Districts:
    the interim renewal contracts were exempt from CEQA. As to the “‘rate-setting’”
    exemption found at section 21080, subdivision (b)(8), and Guidelines section 15273, the
    trial court observed that the interim renewal contracts had the effect of setting rates
    between the Bureau and Water Districts and, in all other respects, merely continued
    existing water deliveries without any change. Therefore, the trial court found that this
    exemption to CEQA was applicable. The trial court next considered the “‘ongoing
    project’” exemption that is set forth in Guidelines section 15621, which the trial court
    explained was intended to remove from CEQA projects that “were authorized before the
    adoption of CEQA” and that have “not changed in such a way as to cause new
    environmental impacts.” In discussing this exemption, the trial court found that “the
    contracts merely continue the project that was originally authorized in 1965, long before
    CEQA was effective in November of 1970, and therefore the contracts fall within the
    15.
    ‘ongoing projects exemption.’” The trial court noted that although there had been some
    degree of expansion in water deliveries and distribution systems since 1970, “the current
    round of interim renewal contracts [were] not part of [that] expansion.” For these
    reasons, the trial court found that the ongoing projects exemption applied.
    Finally, the trial court held that the “[e]xisting [f]acilities” exemption set forth in
    Guidelines section 15301 was applicable, since the interim renewal contracts “merely
    authorized continued water deliveries under the existing system and use of the
    distribution network to provide those water deliveries.” The trial court rejected
    petitioners’ argument that exceptions to this categorical exemption (relating to significant
    effects on the environment caused by unusual circumstances or cumulative impacts)
    defeated the existing facilities exemption. Inasmuch as the baseline for the interim
    renewal contracts was the environment as it existed in December 2011, including all
    environmental damages that already existed at that time, and because said contracts did
    not increase or change the existing water deliveries or construct new facilities, the
    exceptions to the exemption were not established.
    In short, the trial court fully agreed with the findings of exemption adopted by
    Water Districts when the approvals were made.
    Petitioners’ Appeal and Procedural Issues
    After the trial court found the approvals of the 2012 interim renewal contracts
    were exempt from CEQA, it denied the petition for writ of mandate. A judgment of
    dismissal followed. Petitioners appeal from that judgment, arguing that Water Districts
    erred in making findings of exemption from CEQA.
    Before proceeding, we note this is not petitioners’ first occasion to challenge
    Water Districts’ approvals of interim renewal contracts. Previously, petitioners appealed
    from a denial of a petition for writ of mandate to set aside the 2010 two-year, interim
    renewal contracts—the six interim renewal contracts that immediately preceded those at
    issue here. We concluded that the appeal was moot, since the contracts had expired while
    16.
    the appeal was pending and all activity under those contracts had ended. Thus, no
    effective relief concerning those 2010 contracts could be granted. (North Coast Rivers
    Alliance v. Westlands Water Dist. (Apr. 11, 2012, F062357) [nonpub. opn.].) Moreover,
    in light of the inadequacy of the administrative record, we declined to reach the issues
    under the discretionary exception by which a court may hear a moot case where the
    controversy is one that is likely to recur between the parties. (Ibid.; see Cucamongans
    United for Reasonable Expansion v. City of Rancho Cucamonga (2000) 
    82 Cal.App.4th 473
    , 479-480 [stating discretionary exceptions to rules regarding mootness].) Although
    the issues were capable of repetition, yet evading review, we chose not to address the
    issues on such an incomplete record.
    In the appeal now before us concerning the 2012 interim renewal contracts, the
    issues are likewise moot. The contracts expired in February 2014 and all activity under
    those contracts ended at that time.17 However, we believe the record in the present
    appeal is sufficient to allow us to resolve certain key issues that are likely to recur
    relating to Water Districts’ findings of exemption from CEQA and petitioners’ challenges
    thereto. Accordingly, we exercise our discretion to reach those issues in this otherwise
    moot case.
    DISCUSSION
    I.     Standard of Review
    Appellate review under CEQA is de novo in the sense that we review the agency’s
    actions as opposed to the trial court’s decision. (Vineyard Area Citizens for Responsible
    Growth, Inc. v. City of Rancho Cordova (2007) 
    40 Cal.4th 412
    , 427 (Vineyard Area).)
    However, our inquiry extends only to whether there was a prejudicial abuse of discretion.
    17     On February 28, 2014, the Bureau and Water Districts entered into a new round of
    two-year, interim renewal contracts on identical terms. We grant Water Districts’ request
    for judicial notice of said 2014 interim renewal contracts.
    17.
    (§ 21168.5.) “Such an abuse 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.’ [Citations.]” (Vineyard Area, 
    supra, pp. 426-427
    , fn. omitted.) Therefore, we
    resolve the CEQA issues before us by independently determining whether the
    administrative record demonstrates any legal error by Water Districts and whether it
    contains substantial evidence to support Water Districts’ factual determinations.
    The instant appeal challenges Water Districts’ determinations that the 2012
    interim renewal contracts (or the activities authorized thereby) were exempt from CEQA.
    CEQA exemptions are of two types—statutory and categorical—both of which were
    asserted by Water Districts. Since both types of exemptions are at issue in this appeal,
    we briefly explain the differences between them and the manner in which the standard of
    review plays out in our consideration of each type of exemption.
    A.     Statutory Exemptions
    Statutory exemptions, as the term implies, are those enacted by the Legislature.
    “Because CEQA is statutory in origin, the Legislature has the power to create exemptions
    from its requirements. Projects and activities can be made wholly or partially exempt, as
    the Legislature chooses, regardless of their potential for adverse [environmental]
    consequences.” (Great Oaks Water Co. v. Santa Clara Valley Water Dist. (2009) 
    170 Cal.App.4th 956
    , 966, fn. 8 (Great Oaks), relying on Napa Valley Wine Train, Inc. v.
    Public Utilities Com. (1990) 
    50 Cal.3d 370
    , 376, 382 [as to each statutory exemption, the
    Legislature has determined that the exemption promoted an interest important enough to
    justify foregoing CEQA compliance].) “A critical difference between statutory and
    categorical exemptions is that statutory exemptions are absolute, which is to say that the
    exemption applies if the project fits within its terms. Categorical exemptions, on the
    other hand, are subject to exceptions that defeat the use of the exemption and the agency
    considers the possible application of an exception in the exemption determination.”
    (Great Oaks, supra, at p. 966, fn. 8.)
    18.
    An agency’s finding that a statutory exemption applies to a project will be upheld
    if substantial evidence supports the finding of exemption. (Concerned Dublin Citizens v.
    City of Dublin (2013) 
    214 Cal.App.4th 1301
    , 1311.) “In determining whether an
    agency’s findings concerning the use of a statutory exemption from CEQA may be
    upheld, we review the administrative record to see that substantial evidence supports each
    element of the exemption. [Citations.] ‘There must be “substantial evidence that the
    [activity is] within the exempt category of projects.” [Citation.] That evidence may be
    found in the information submitted in connection with the project, including at any
    hearings that the agency chooses to hold. [Citation.]’ [Citation.] … [O]ur application of
    substantial evidence review in the context of a challenge to an agency’s use of a statutory
    exemption means we determine whether the administrative record contains relevant
    information that a reasonable mind might accept as sufficient to support the conclusion
    reached. All conflicts in the evidence are resolved in support of the agency’s action and
    we indulge all reasonable inferences to support the agency’s findings, if possible.
    [Citations.]” (Great Oaks, supra, 170 Cal.App.4th at p. 973.)
    On the other hand, if we are required to construe the scope of a statutory
    exemption, to that extent the issue becomes one of statutory interpretation to which we
    apply de novo review. (Del Cerro Mobile Estates v. City of Placentia (2011) 
    197 Cal.App.4th 173
    , 179; Bus Riders Union v. Los Angeles County Metropolitan
    Transportation Agency (2009) 
    179 Cal.App.4th 101
    , 106-107.)
    B.     Categorical Exemptions
    As directed by the Legislature in section 21084, the Guidelines adopted by the
    Secretary of the Resources Agency to implement CEQA must include “a list of classes of
    projects that have been determined not to have a significant effect on the environment
    and that shall be exempt from this division.” (§ 21084, subd. (a).) The Guidelines
    contain such a list of exempt classes of projects, which are known as categorical
    exemptions. (Guidelines, § 15300 et seq.) These are nonstatutory exemptions for
    19.
    categories of projects that ordinarily have no significant effect on the environment. For
    example, as will be discussed later in this opinion, there is a categorical exemption
    provided in the Guidelines for “[e]xisting [f]acilities,” which is defined as the “operation
    … of existing public or private structures, facilities, mechanical equipment, or
    topographical features, involving negligible or no expansion of use beyond that existing
    at the time of the lead agency’s determination.” (Guidelines, § 15301.) In contrast to
    statutory exemptions, the categorical exemptions are subject to exceptions.
    Section 15300.2, subdivision (c), of the Guidelines states an important exception: “A
    categorical exemption shall not be used for an activity where there is a reasonable
    possibility that the activity will have a significant effect on the environment due to
    unusual circumstances.” Another exception to the categorical exemptions states: “All
    exemptions for these classes are inapplicable when the cumulative impact of successive
    projects of the same type in the same place, over time is significant.” (Id., subd. (b).)
    If an agency has established that a project comes within a categorical exemption,
    the burden shifts to the party challenging the exemption to show that it falls into one of
    the exceptions. (Fairbank v. City of Mill Valley (1999) 
    75 Cal.App.4th 1243
    , 1259
    (Fairbank).) We apply the substantial evidence test to an agency’s factual determination
    that a project comes within the scope of a categorical exemption. (Committee to Save the
    Hollywoodland Specific Plan v. City of Los Angeles (2008) 
    161 Cal.App.4th 1168
    , 1187;
    Fairbank, supra, at p. 1251.)
    Less clear is the standard of review that is applicable to the second part of the
    agency’s analysis—namely, whether an exception to the categorical exemption exists.
    On this question, there is a split of authority. (Fairbank, supra, 75 Cal.App.4th at
    pp. 1259-1260 [describing split of authority].) One line of cases has applied the “‘fair
    argument’” standard, holding that a finding of categorical exemption cannot be sustained
    if there is a fair argument based on substantial evidence in the record that an exception
    applies (e.g., a reasonable possibility that the activity will have a significant effect on the
    20.
    environment due to unusual circumstances), even where the agency is also presented with
    substantial evidence to the contrary. (Ibid. [noting a rationale cited for this approach is
    the analogy to challenges to negative declarations]; see also Committee to Save the
    Hollywoodland Specific Plan v. City of Los Angeles, supra, 161 Cal.App.4th at p. 1187.)
    A number of recent appellate cases have applied the “fair argument” standard to whether
    an exception has been established, including Voices for Rural Living v. El Dorado
    Irrigation Dist. (2013) 
    209 Cal.App.4th 1096
    , 1108, Banker’s Hill, Hillcrest, Park West
    Community Preservation Group v. City of San Diego (2006) 
    139 Cal.App.4th 249
    , 262
    (Banker’s Hill), and Azusa Land Reclamation Co. v. Main San Gabriel Basin
    Watermaster (1997) 
    52 Cal.App.4th 1165
    , 1202-1204 (Azusa Land).
    Other cases have applied an ordinary substantial evidence test to questions of fact
    regarding exceptions to categorical exemptions, deferring to the express or implied
    findings of the local agency that found a categorical exemption applicable. (Fairbank,
    supra, 75 Cal.App.4th at pp. 1259-1260.) Such cases include Santa Monica Chamber of
    Commerce v. City of Santa Monica (2002) 
    101 Cal.App.4th 786
    , 796 (Santa Monica),
    City of Pasadena v. State of California (1993) 
    14 Cal.App.4th 810
    , 824, Centinela
    Hospital Assn. v. City of Inglewood (1990) 
    225 Cal.App.3d 1586
    , 1601, and Dehne v.
    County of Santa Clara (1981) 
    115 Cal.App.3d 827
    , 844-845.
    We do not need to decide which view is correct because, here, the result is the
    same even under the less deferential fair argument standard, as will be seen in the part of
    this opinion discussing Water Districts’ claim of categorical exemption for existing
    facilities. But first we shall consider the statutory exemptions.
    II.    Statutory Rate-setting Exemption
    Section 21080, subdivision (b), enumerates certain “activities” to which CEQA
    does not apply. Subdivision (b)(8) thereof provides that CEQA does not apply to “[t]he
    establishment, modification, structuring, restructuring, or approval of rates, tolls, fares, or
    other charges by public agencies which the public agency finds are for the purpose of
    21.
    (A) meeting operating expenses, including employee wage rates and fringe benefits,
    (B) purchasing or leasing supplies, equipment, or materials, (C) meeting financial reserve
    needs and requirements, (D) obtaining funds for capital projects necessary to maintain
    service within existing service areas, or (E) obtaining funds necessary to maintain those
    intracity transfers as are authorized by city charter.…”18 (Id., subd. (b)(8); see also
    Guidelines, § 15273.) Under this statutory exemption, an agency’s setting of rates, fares,
    tolls or other charges to further one or more of the exempt purposes in the provision (e.g.,
    to maintain existing services or meet operating expenses) does not require CEQA review.
    (Great Oaks, supra, 170 Cal.App.4th at p. 969; Bus Riders Union v. Los Angeles County
    Metropolitan Transportation Agency, 
    supra,
     179 Cal.App.4th at pp. 103, 107-108.) The
    Guidelines clarify, however, that “[r]ate increases to fund capital projects for the
    expansion of a system remain subject to CEQA.” (Guidelines, § 15273, subd. (b).) In
    order to qualify for this exemption, the agency is required to incorporate written findings
    in the record of any proceeding in which an exemption under this section is claimed, and
    such findings must set forth with specificity the basis for the claim of exemption.
    (§ 21080, subd. (b)(8); Guidelines, § 15273, subd. (c).)
    Water Districts assert that the rate-setting exemption was applicable in this case
    because the 2012 interim renewal contracts kept the status quo in place and incorporated
    the terms of prior interim agreements between the parties, without change, some of which
    had previously included a schedule of water rates. In approving the 2012 interim renewal
    18     The first part of the statute refers to the establishment or approval of rates by
    “public agencies” (plural), while later in the same sentence it refers to “the public
    agency” (singular) making the findings that the action furthers one or more of the listed
    exempt purposes. (§ 21080, subd. (b)(8), italics added.) The reason for this is not
    apparent, but it may be to allow flexibility and/or to cover situations in which there are
    layers of approvals involved by more than one public agency concerning the same rate
    increase. In any event, neither party has made an issue of this wording, therefore we do
    not address it further.
    22.
    contracts, Water Districts made express findings that the renewals would simply provide
    for continued water delivery on the same terms, using the same facilities, without any
    change or expansion of existing use. As to rates, Water Districts’ 2011 resolutions
    claimed that the renewals involved only adjustments to rates and related administrative
    terms to meet operating expenses. However, the 2012 interim renewal agreements make
    no mention of any setting or adjustment of rates.
    Arguing for the opposite result, petitioners contend that the record does not
    support the application of the exemption because the 2012 interim renewal contracts did
    not specify that any action was being taken concerning rates by Water Districts. We
    agree with petitioners on this issue.
    We begin by noting the factual situation that is generally contemplated by this
    statutory exemption. In light of the exemption’s reference to rates, tolls and fares19
    charged by public agencies, and the fact that the listed exempt purposes relate to
    defraying or meeting agency expenses, it appears that the exemption is primarily
    concerned with the situation where a public agency provides services to customers or the
    public (e.g., bus transportation) and decides that it must either impose a charge, or alter
    the amount already charged, for such services (e.g., bus fare increase).20 (§ 21080,
    19     In context, each of these terms describes an amount charged to customers for
    services or similar matters provided by the public agency—e.g., fares for bus
    transportation, rates for water services, etc. (See Webster’s II, New College Dict. (1995)
    pp. 919, 1159, 406.) When a statute sets forth a class of things that have a common
    nature, theme or character, we give that fact significance (see Harris v. Capital Growth
    Investors XIV (1991) 
    52 Cal.3d 1142
    , 1159-1160), keeping in mind that our task is to
    “determine … the intent of the Legislature by construing in context the language of the
    statute” (id. at p. 1159).
    20      As noted in Great Oaks, supra, 170 Cal.App.4th at page 969, “the statutory
    ratesetting exemption effectively limits the effect of Shawn v. Golden Gate Bridge etc.
    Dist. (1976) 
    60 Cal.App.3d 699
    , in which the court held that a fare increase for existing
    bus service was a project subject to CEQA review.”
    23.
    subd. (b)(8).) The cases are consistent with this understanding. In each of the appellate
    decisions affirming the application of the rate-setting exemption, a public agency had
    approved or raised certain rates or fares charged in order to maintain existing levels of
    service, meet operational expenses related to such services and/or fulfill other exempt
    purposes under the statute. (See, e.g., Bus Riders Union v. Los Angeles County
    Metropolitan Transportation Agency, 
    supra,
     179 Cal.App.4th at pp. 103, 107-108
    [exemption applied to bus fares raised by public agency to meet operational expenses and
    obtain funding needed to maintain service within existing service areas]; Great Oaks,
    supra, 170 Cal.App.4th at pp. 973-975 [exemption applied to groundwater rate increases
    approved for purposes of meeting operational expenses and maintaining service levels in
    existing service areas]; Surfrider Foundation v. California Coastal Com. (1994) 
    26 Cal.App.4th 151
    , 155-156 [exemption applied to the California Department of Parks and
    Recreation’s decision to install devices for collection of parking fees at state park
    beaches, and same exemption applied to the California Coastal Commission’s subsequent
    approval of the Department’s decision]; Condit v. Solvang Mun. Improvement Dist.
    (1983) 
    146 Cal.App.3d 997
    , 1001 [the district’s increase in rates and connection fees for
    water service to maintain existing service levels was exempt from CEQA].)
    Here, the record does not support a finding that, by approving the 2012 interim
    renewal contracts, Water Districts were thereby setting, adjusting or approving rates
    charged to customers of Water Districts. Therefore, the present case does not fit within
    the standard factual pattern for this exemption, as described above. And even assuming
    (without deciding) that the statutory exemption could potentially apply to the rates that
    Water Districts were required to pay21 to the Bureau for the supplies of CVP water
    21     We note the statute refers to rates or other charges by public agencies (§ 21080,
    subd. (b)(8)), but does not expressly mention rates or charges against the public entity
    seeking the exemption.
    24.
    delivered by the Bureau to Water Districts, the 2012 interim renewal contracts were silent
    regarding any such rates. Although it is true the 2012 interim renewal contracts
    incorporated previous interim agreements, the effect of which was to continue the status
    quo without change in regard to all preexisting terms (including rate obligations), the
    2012 interim renewal contracts did not expressly mention rates or specify that any action
    was being taken on the issue of rates as such. Nothing explicit was said therein about
    adjusting, approving or establishing rates. Without more, the record does not show that
    the 2012 interim renewal contracts (and the approvals thereof) were, in substance, rate-
    setting actions by Water Districts. Therefore, even assuming for the sake of argument
    that this statutory exemption could, in a proper case, be applied to Water Districts
    concerning the rates that Water Districts had to pay to the Bureau for CVP water, the
    exemption was not established by substantial evidence in the present record.
    III.   Statutory Exemption For Pre-CEQA Ongoing Projects
    In implementing CEQA, the Guidelines recognize a statutory exemption for a
    project approved prior to November 23, 1970, that is still “being carried out” by the
    public agency. (Guidelines, § 15261, subd. (a); Guidelines, § 15261(a).)22 Because
    November 23, 1970, is the date that CEQA took effect (Friends of Mammoth v. Board of
    Supervisors (1972) 
    8 Cal.3d 247
    , 272 (Friends of Mammoth); Stats. 1970, ch. 1433, § 1,
    p. 2780 et seq.), the exemption is evidently founded, at least in part, on the fact that
    CEQA, as a statutory enactment, was intended by the Legislature to have a prospective,
    not retroactive, application. (See, e.g., Communities for a Better Environment v. South
    22      The Guidelines plainly construe section 15261 as a statutory exemption. It is part
    of article 18 of the Guidelines (expressly entitled “Statutory Exemptions”), which article
    describes “the exemptions from CEQA granted by the Legislature.” (Guidelines,
    § 15260.) The categorical exemptions are contained elsewhere (i.e., art. 19) in the
    Guidelines. (Guidelines, § 15300 et seq.) “In interpreting CEQA, we accord the
    Guidelines great weight except where they are clearly unauthorized or erroneous.”
    (Vineyard Area, 
    supra,
     40 Cal.4th at p. 428, fn. 5.)
    25.
    Coast Air Quality Management Dist. (2010) 
    48 Cal.4th 310
    , 325, fn. 10 (Communities for
    a Better Environment) [noting that CEQA does not apply retroactively to pre-CEQA
    projects]; Nacimiento Regional Water Management Advisory Com. v. Monterey County
    Water Resources Agency (1993) 
    15 Cal.App.4th 200
    , 201, 206 (Nacimiento) [annual
    water releases from dam/reservoir built prior to enactment of CEQA were exempt as
    integral part of ongoing pre-CEQA project; parallel federal cases closely considered since
    NEPA, “like CEQA, … does not apply retroactively”]; Remy et al., Guide to CEQA:
    Cal. Environmental Quality Act (11th ed. 2007) p. 121; see also Quarry v. Doe I (2012)
    
    53 Cal.4th 945
    , 955 [all statutes presumed to be prospective, not retroactive, unless a
    contrary intention is clearly indicated by Legislature];23 §§ 21169-21171.)24
    23     No indication of a contrary intention regarding CEQA’s application has been
    brought to our attention, and we are aware of none. (See Stats. 1970, ch. 1433, § 1,
    p. 2780 et seq.; § 21000 et seq.)
    24     Sections 21169 to 21171 are indicative of the Legislature’s perspective. These
    sections were passed in 1972 in response to the Supreme Court’s decision in Friends of
    Mammoth, supra, 8 Cal.3d at pages 252 and 257, which held that CEQA applied to
    private as well as public projects. In resolving that issue of statutory interpretation, the
    Supreme Court denied a request to make its ruling prospective only (Friends of
    Mammoth, supra, at p. 272). That denial created a problem: Many private projects had
    been approved (post-CEQA) based on the assumption that CEQA only applied to public
    projects, and such approvals had been detrimentally relied upon. To remedy this
    problem, sections 21169 to 21171 were passed as emergency measures on December 5,
    1972. (Cooper v. County of Los Angeles (1977) 
    69 Cal.App.3d 529
    , 533.) Generally
    speaking, these sections alleviated the hardships resulting from the Supreme Court’s
    decision by grandfathering the affected approvals. (Ibid.; Azusa Land, supra, 52
    Cal.App.4th at pp. 1216-1218; Bresnahan v. City of Pasadena (1975) 
    48 Cal.App.3d 297
    ,
    306.) In doing so, the sections were worded broadly to cover private projects that were
    approved “before” specified post-CEQA dates. (See §§ 21169, 21171.) Notably, that
    same wording was also broad enough to extend back to projects approved before CEQA
    became law, which we believe supports or reinforces the premise that CEQA was not
    intended to apply retroactively to pre-CEQA projects. A footnote in a recent Supreme
    Court decision referred to section 21169 in connection with a discussion of the principle
    that CEQA does not apply “retroactively to pre-CEQA projects.” (Communities for a
    Better Environment, supra, 48 Cal.4th at p. 325, fn. 10.) Section 21171 contains
    similarly broad wording, which the same footnote referred to as “the 1972 moratorium
    26.
    The full text of section 15261(a) of the Guidelines provides, under the heading
    “Ongoing Project,” as follows:
    “If a project being carried out by a public agency was approved prior
    to November 23, 1970, the project shall be exempt from CEQA unless
    either of the following conditions exists:
    “(1) A substantial portion of public funds allocated for the project
    have not been spent, and it is still feasible to modify the project to mitigate
    potentially adverse environmental effects, or to choose feasible alternatives
    to the project, including the alternative of ‘no project’ or halting the project;
    provided that a project subject to the National Environmental Policy Act
    (NEPA) shall be exempt from CEQA as an on-going project if, under
    regulations promulgated under NEPA, the project would be too far
    advanced as of January 1, 1970, to require preparation of an EIS.
    “(2) A public agency proposes to modify the project in such a way
    that the project might have a new significant effect on the environment.”
    As this language clearly indicates, the exemption includes the situation where a
    public agency carries out an action today that is an inherent part of an ongoing project
    approved before CEQA took effect. (Guidelines, § 15261(a) [the project “approved”
    prior to November 23, 1970, is “being carried out” by the agency].)25 The key issue in
    analyzing the exemption is whether the challenged action is “a normal, intrinsic part of
    the ongoing operation” of a project approved prior to CEQA, rather than an expansion or
    modification thereof. (Nacimiento, supra, 15 Cal.App.4th at p. 205; accord, County of
    Amador v. El Dorado County Water Agency (1999) 
    76 Cal.App.4th 931
    , 968-969
    (Amador).)
    In Nacimiento, a government agency built a dam and reservoir prior to the
    enactment of CEQA. The agency’s application to build the project had provided for
    for ongoing projects.” (Communities for a Better Environment, 
    supra, at p. 325, fn. 10
    .)
    Sections 21169 to 21171 are implemented in Guidelines section 15261, subdivision (b).
    25      In so stating, we are not yet addressing the potential applicability of the exceptions
    set forth in Guidelines section 15261(a).
    27.
    operation of a reservoir, including the storing and periodic release of water in varying
    amounts and for different uses. The plaintiff in that case challenged the agency’s 1991
    decision to release large amounts of water that year to benefit various interests
    downstream. The appellate court held that the agency’s annual decision to release water
    to competing interests was an inherent part of an ongoing project and exempt from
    CEQA. (Nacimiento, supra, 15 Cal.App.4th at pp. 201, 204-208.) The court explained:
    “Whether an activity requires environmental review depends upon whether it expands or
    enlarges project facilities or whether it merely monitors and adjusts the operation of
    existing facilities to meet fluctuating conditions.” (Id. at p. 205. ) Since the project in
    that case did not involve enlargement of capacity to divert water or make other material
    revisions, but instead continued operations within existing parameters, it fell within the
    ongoing project exemption and did not require CEQA review. (Nacimiento, supra, at
    pp. 207-208; see also Amador, supra, 76 Cal.App.4th at pp. 968-969 [stating the same
    test, but holding the exemption did not apply there because of “remarkable” change in
    proposed operation of the project from nonconsumptive to consumptive water use]; cf.
    County of Inyo v. Yorty (1973) 
    32 Cal.App.3d 795
    , 806-808 [the city’s additional
    pumping facilities and expanded groundwater extraction increased the intensity and scope
    of the original aqueduct program; therefore, environmental review of the expanded
    groundwater extraction was required].)
    In the instant appeal, petitioners argue that the exemption for ongoing projects did
    not apply because there were expanded operations in the years after CEQA took effect,
    creating significant effects on the environment beyond that of the originally conceived
    project. Allegedly, the 2012 approvals necessarily included the post-CEQA expansions
    and, therefore, could not come within the terms of the exemption. Taking the contrary
    position, Water Districts maintain that substantial evidence in the record adequately
    supported their findings that the 2012 interim renewal contracts and the activity
    28.
    contemplated therein came within the scope of the exemption for pre-CEQA ongoing
    projects.
    We conclude Water Districts are correct. That is, there is substantial evidence in
    the record to support the Water Districts’ claim of statutory exemption under Guidelines
    section 15261(a). As explained in due course below, this conclusion is evidenced by a
    comparison of the nature of the original pre-CEQA project and the current activity
    challenged by petitioners. That comparison reflects that the matters presently challenged
    by petitioners are merely an incidental part of the original, ongoing pre-CEQA project—
    and therefore exempt.
    A.     CEQA’s Definition of a Project
    Before considering whether there is an ongoing pre-CEQA project here, we first
    note how CEQA defines a project. Under CEQA, a “[p]roject means an activity which
    may cause either a direct physical change in the environment, or a reasonably foreseeable
    indirect physical change in the environment, and which is any of the following: [¶]
    (a) An activity directly undertaken by any public agency. [¶] (b) An activity undertaken
    by a person which is supported, in whole or in part, through contracts, grants, subsidies,
    loans, or other forms of assistance from one or more public agencies. [¶] (c) An activity
    that involves the issuance to a person of a lease, permit, license, certificate, or other
    entitlement for use by one or more public agencies.” (§ 21065.) The Guidelines
    elaborate that a “‘[p]roject’ means the whole of an action, which has a potential for
    resulting in either a direct physical change in the environment, or a reasonably
    foreseeable indirect physical change in the environment” and which is undertaken,
    supported or approved by a public agency. (Guidelines, § 15378, italics added.) The
    Guidelines further clarify that “[t]he term ‘project’ refers to the activity which is being
    approved and which may be subject to several discretionary approvals by governmental
    agencies. The term ‘project’ does not mean each separate governmental approval.”
    (Guidelines, § 15378, subd. (c), italics added.) The question of the nature or scope of a
    29.
    project may be decided by the appellate court based on undisputed facts in the record.
    (Nelson v. County of Kern (2010) 
    190 Cal.App.4th 252
    , 272.)
    B.       The Pre-CEQA Ongoing Project
    Our next step is to ascertain the nature of the original project or activity that was
    approved prior to November 23, 1970. Since we will be discussing matters that occurred
    long before the two Distribution Districts were formed, the focus of our discussion of
    pre-CEQA events will be on Westlands Water District. Consistent with the parties’
    briefing of this issue, our examination of the record will include both (i) the water
    distribution facilities constructed for Westlands Water District’s use and operation and
    (ii) the CVP water that (depending on availability) Westlands Water District was entitled
    to receive and distribute annually for use on lands within Westlands Water District’s
    service area.
    1.   Water Delivery Facilities Approved Pre-CEQA
    “‘Approval’ means the decision by a public agency which commits the agency to a
    definite course of action in regard to a project intended to be carried out by any
    person.…” (Guidelines, § 15352, subd. (a).)26 Contracts by which the public agency has
    effectively committed itself to a definite course of action on a project are sufficient to
    constitute approval. (See Save Tara v. City of West Hollywood (2008) 
    45 Cal.4th 116
    ,
    134-139 (Save Tara); City of Santee v. County of San Diego (2010) 
    186 Cal.App.4th 55
    ,
    66-68 [applying Save Tara principles to agreements between public agencies regarding a
    public project]; City of Irvine v. County of Orange (2013) 
    221 Cal.App.4th 846
    , 859
    [same].) Generally speaking, an agency acts to approve a proposed course of action
    26     Since the term “‘any person’” is broad and includes both public entities and
    private parties, it is clear that the definition of “‘approval’” provided in Guidelines
    section 15352, subdivision (a), applies to both public and private CEQA projects.
    (POET, LLC v. State Air Resources Bd. (2013) 
    218 Cal.App.4th 681
    , 719; Guidelines,
    § 15376.)
    30.
    when it makes its earliest firm commitment to it, not when the final or last discretionary
    approval is made. (Save Tara, 
    supra, at p. 134
    .)
    At this point in our analysis, we consider the facilities aspect of the purported
    ongoing project. That is, we determine whether the record is sufficient to support the
    conclusion that Westlands Water District, by means of contractual commitments or other
    agency determinations made prior to CEQA’s enactment, approved at that time the
    construction of its water distribution facilities, including the canals, laterals and other
    infrastructure that currently is used to receive and deliver its CVP water supplies. We
    believe that such a conclusion is supported by substantial evidence, as explained below.
    (See Great Oaks, supra, 170 Cal.App.4th at p. 973 [substantial evidence test applies to
    factual questions regarding application of statutory exemption].)
    On April 1, 1965, Westlands Water District entered into a contract with the
    Bureau providing for the construction of a “water distribution and drainage collector
    system.” (U.S. Dept. Interior, Bureau of Reclamation, Contract Between U.S. &
    Westlands Water Dist. (Apr. 1, 1965) p. 2.) The water distribution system was to include
    a lateral conveyance system, primarily of enclosed pipe and related facilities, all of which
    was to generally conform to an attached plan in an exhibit A thereto (a feasibility plan
    showing the layout and approximate location of the laterals and sublaterals). By
    executing the contract, the Bureau agreed to construct such facilities at a total cost not to
    exceed $157,048,000, and Westlands Water District agreed to repay such construction
    costs and other related expenses over a period of 40 years. The construction was to be
    carried out in several phases, with the final two phases to begin no later than specified
    dates in the mid-to-late 1970’s.27 The water distribution system was to provide facilities
    27     Guidelines section 15261(a) only requires that the project was approved prior to
    November 23, 1970; it does not require that the project be constructed or finished prior to
    that date.
    31.
    for the delivery of CVP water to irrigable lands within Westlands Water District’s
    boundaries, consisting at that time of approximately 400,000 acres. On April 14, 1964,
    Westlands Water District approved the above contract by resolution No. 150-64, stating
    that “it is contemplated that the extent of the … distribution facilities, required for the
    lands within the District will increase over a period of years and, therefore, it is desirable
    that provision for their ultimate construction be made at this time .…”
    Effective June 29, 1965, the Legislature enacted special legislation known as the
    Westlands Water District Merger Law (Wat. Code, § 37800 et seq.), which merged the
    adjacent West Plains Water Storage District into Westlands Water District.28 West
    Plains Water Storage District had serviced the water needs of the neighboring lands on
    the westerly side of Westlands Water District. The purpose of the merger was to secure
    greater economy of administration and more effective utilization of CVP water from the
    San Luis Unit in order to maximize the beneficial use of CVP water in the area. (Wat.
    Code, §§ 37801, 37820-37821). The law affirmed that Westlands Water District, as the
    surviving entity, “is a public agency of the state.” (Wat. Code, § 37823.) Lands within
    the original premerger area of Westlands Water District (sometimes called Priority
    Area I) were to continue to have prior water rights (pursuant to an existing contract with
    the Bureau) over the new lands added by virtue of the merger with West Plains Water
    Storage District (sometimes called Priority Area II). (Wat. Code, § 37856.) Documents
    in the administrative record reflect that the merger added approximately 200,000 acres to
    Westlands Water District; thus, after the merger, Westlands Water District’s service area
    encompassed more than 600,000 acres.
    28     The merger was apparently recommended by federal officials. In 1964, a
    memorandum by an Assistant Secretary of the United States Department of the Interior
    for Water and Power Development to the Secretary of the United States Department of
    the Interior promoted the advantages of such a merger.
    32.
    In 1965, after the above described merger, Westlands Water District adopted a
    resolution that requested and authorized the Bureau to immediately begin the work
    necessary for construction of a sufficient water delivery system for the enlarged district
    pursuant to the existing repayment plan in the April 1, 1965, construction contract and
    invited negotiation of any amendatory repayment plan as the Bureau may deem
    necessary. In 1966, a plat was prepared identifying rights-of-way for distribution system
    laterals serving all of the areas within Westlands Water District’s postmerger boundaries.
    By 1968, the Bureau’s official publications and other written documentation
    acknowledged that the water distribution system under construction by the Bureau would
    be used to serve approximately 600,000 acres of Westlands Water District. During that
    same year, the Bureau and Westlands Water District entered into a supplemental contract
    to expedite the construction of the water distribution system within Westlands Water
    District’s boundaries (understood as comprising approximately 600,000 acres), which
    contract also provided for Westlands Water District to receive an additional 1.4 million
    acre-feet of water within a 10-year period (the 1968 supplemental contract). The 1968
    supplemental contract (entitled “Contract for Short Term Water Service”) was approved
    by resolution of Westlands Water District in 1968.
    In our estimation, the foregoing evidence was more than sufficient to show that
    prior to November 23, 1970, Westlands Water District (and the Bureau) had committed
    to a definite course of action (i.e., given approval) as to the proposed construction and
    layout of the facilities that are presently used and operated by Westlands Water District to
    receive and deliver CVP water supplied by the Bureau from the San Luis Unit of the
    CVP.
    2.     Water Quantities Approved Pre-CEQA
    The above described permanent facilities were obviously approved by Westlands
    Water District for the purpose of receiving and distributing CVP water for beneficial use
    on the lands within Westlands Water District’s boundaries. One might reasonably expect
    33.
    that the same project would also entail Westlands Water District’s entitlement to actually
    receive quantities of CVP water each year for that purpose. While that is indeed the case
    here, the more difficult question factually is how much water was approved by Westlands
    Water District pre-CEQA.
    Again, since we are analyzing a statutory exemption, the applicable standard of
    review concerning factual matters is the substantial evidence test. (Great Oaks, supra,
    170 Cal.App.4th at p. 973.) The question is whether substantial evidence in the record
    supports the conclusion that, prior to November 23, 1970, Westlands Water District
    effectively committed itself to a definite course of action to obtain certain quantities of
    CVP water. As we proceed to explain, we believe that contractual commitments with the
    Bureau showed that such pre-CEQA approval did, in fact, occur as to quantities of CVP
    water corresponding to what Westlands Water District is currently entitled to receive.
    We begin with the 1963 water service contract between the Bureau and Westlands
    Water District. The 1963 water service contract provided Westlands Water District with
    CVP water rights of 1,008,000 acre-feet per year through 1979, and 900,000 acre-feet per
    year thereafter. The term of the water service contract was 40 years, commencing with
    the first water deliveries of CVP water, with renewals for additional 40-year terms
    expressly contemplated. The 40-year term of the 1963 water service contract expired at
    the end of 2007.
    We note the 1963 water service contract was entered into before Westlands Water
    District merged with West Plains Water Storage District. Thus, by itself, the 1963 water
    service contract only shows that a right was established to 900,000 acre-feet per year
    (after 1979) for the lands in the original Westlands Water District (known as Priority
    Area I). Furthermore, as indicated by the chain of interim renewal contracts entered into
    after the 1963 water service contract expired, Westlands Water District’s present
    contractual entitlements are for 1.15 million acre-feet per year of CVP water, an increase
    34.
    of 250,000 acre-feet from the 1963 contract. The question is: was the right to the
    additional 250,000 acre-feet approved prior to the effective date of CEQA?
    According to Water Districts, Westlands Water District’s right to the additional
    250,000 acre-feet of water per year, which was needed to serve the lands within the
    former West Plains Water Storage District (Priority Area II), can be traced to another
    contractual commitment entered into prior to CEQA’s effective date. Specifically, Water
    Districts refer to the 1968 supplemental contract with the Bureau, which provided
    Westlands Water District an extra 1.4 million acre-feet of water that would be supplied
    within a period of 10 years. Water Districts note that if the 1.4 million acre-feet were
    divided evenly over the 10 years, the resulting 140,000 acre-feet per year, plus the
    existing 1,008,000 acre-feet to which Westlands Water District was entitled (through
    1979) under the 1963 water service contract, would total 1,148,000 acre-feet (equivalent
    to 900,000 plus an additional 248,000 acre-feet). If so calculated, the 1968 supplemental
    contract made provision for nearly the exact amount of additional water that was needed,
    at least for a significant period of time.
    The 1968 supplemental contract remained in effect until 1972;29 thereafter, water
    supplies needed to serve the area formerly within West Plains Water Storage District
    were consistently allocated by the Bureau and provided to Westlands Water District each
    year from 1972 through 1981 pursuant to a series of annual contracts. Thereafter,
    additional water supplies were consistently allocated by the Bureau pursuant to a further
    stipulated agreement. Westlands Water District pursued litigation to have its right to the
    extra 250,000 acre-feet per year judicially declared. It asserted, among other things, that
    the United States Department of the Interior had advocated the merger that created the
    29     It is not apparent why the 1968 supplemental contract ended at that time.
    35.
    additional water need.30 In 1986, Westlands Water District’s right to the additional
    250,000 acre-feet per year was recognized in a stipulated judgment known as the
    Barcellos judgment (Barcellos & Wolfsen, Inc. v. Westlands Water Dist. (E.D.Cal.,
    No. CV 79-106-EDP).31
    The Barcellos judgment also stipulated that the Bureau and the United States
    Department of the Interior had known, at least since the 1965 merger of Westlands Water
    District with West Plains Water Storage District, that an additional “firm water supply”
    of 250,000 acre-feet of water per year was needed. By the time of the Bureau’s approval
    of the 1968 supplemental contract, the Bureau acknowledged (as evidenced by official
    publications and other records) that the water distribution system it was building for
    Westlands Water District would serve the entire 600,000 acres, thereby indicating it
    understood the water deliveries to be provided thereby were for the postmerger
    Westlands Water District. Both the 1963 water service contract and the 1968
    supplemental contract were formally approved by resolutions of Westlands Water District
    in those years.
    We agree with Water Districts that the above facts, including the contracts entered
    into between Westlands Water District and the Bureau in 1963 and 1968, and reasonable
    inferences therefrom, constituted substantial evidence that the entire 1.15 million acre-
    feet of water to which Westlands Water District is presently entitled each year can be
    traced back to the contractual commitments made prior to the advent of CEQA. The
    30     A memorandum from the Assistant Secretary of the United States Department of
    the Interior for Water and Power Development, to the Secretary of the United States
    Department of the Interior, dated October 1964, pointed out the advantages of such a
    merger and indicated the tentative prospects of long-term water becoming available in the
    future to meet the water needs of the area comprising the present West Plains Water
    Storage District.
    31     This was a compromise of claims; the Bureau was willing to recognize this right,
    but did not expressly admit that Westlands Water District’s claims were valid.
    36.
    900,000 acre-feet of water was clearly a long-term right as established in the 1963 water
    service contract. The 1968 supplemental contract appears to have provided for the
    additional (nearly) 250,000 acre-feet of water per year and, although it was relatively
    short-lived, the subsequent annual agreements as well as the litigation culminating in the
    Barcellos judgment, demonstrated Westlands Water District’s ongoing commitment,
    legally and financially, to continue to receive that additional 250,000 acre-feet of water
    that was traceable back to the 1968 supplemental contract. Accordingly, the entire
    1.15 million acre-feet of water that Westlands Water District is entitled to receive through
    its existing facilities was approved prior to CEQA’s enactment.
    C.     Comparison of Original Project to the Presently Challenged Action(s)
    The applicability of the ongoing projects exemption depends on whether the
    challenged action is “a normal, intrinsic part of the ongoing operation” of a project
    approved prior to CEQA, rather than an expansion or modification thereof. (Nacimiento,
    supra, 15 Cal.App.4th at p. 205; accord, Amador, supra, 76 Cal.App.4th at pp. 968-969.)
    Here, as discussed above, the original pre-CEQA project included the construction and
    operation of Westlands Water District’s existing facilities to receive CVP water and to
    deliver that water to customers within Westlands Water District’s boundaries. Moreover,
    the original pre-CEQA project included the entirety of the 1.15 million acre-feet of water
    to which Westlands Water District is presently entitled to receive by contract.
    The currently challenged action or project consisted of the activity stemming from
    Water Districts’ approval of the 2012 interim renewal contracts. By far the largest such
    contract was the interim renewal contract between Westlands Water District and the
    Bureau, which we treat separately. This contract incorporated the terms of the prior
    interim renewal contracts between said parties, thereby continuing without change
    Westlands Water District’s right to receive 1.15 million acre-feet of water per year for
    use on lands within Westlands Water District boundaries, on the same terms as before.
    This contract involved a brief, two-year continuation of the same activity that was
    37.
    approved prior to CEQA, which activity Westlands Water District had been carrying out
    on an ongoing basis since that original pre-CEQA approval. As such, substantial
    evidence supported the conclusion that the activity contemplated in the 2012 interim
    renewal contract with Westlands Water District came within the ongoing projects
    exemption set forth in Guidelines section 15621(a).
    The other five interim renewal contracts at issue herein were entered into by the
    Distribution Districts. The Distribution Districts acquired, post-CEQA, the assignment of
    water rights from other west side districts receiving CVP water from the San Luis Unit.
    In this way, quantities of CVP water that other districts were entitled to receive
    (preassignment) could be made available to lands within the service area of Westlands
    Water District. That was one of the purposes for forming the Distribution Districts in
    2000 and 2002. The assigned water rights included 6,260 acre-feet of water from Mercy
    Springs Water District; 2,500 acre-feet of water from Centinella Water District; 2,990
    acre-feet of water from Widren Water District; 27,000 acre-feet of water from Broadview
    Water District, and an additional 4,198 acre-feet of water from Mercy Springs Water
    District. As the holders of the assigned water rights, the Distribution Districts were (and
    are) the contracting parties for purposes of entering into any renewals thereof with the
    Bureau, including the 2012 interim renewal contracts executed by the Distribution
    Districts.
    Petitioners contend the above referenced assignments were expansions of the
    original scope of the pre-CEQA project, allegedly making the ongoing project exemption
    inapplicable. Petitioners argue the present case is similar to County of Inyo v. Yorty,
    supra, 
    32 Cal.App.3d 795
    , where an expansion in the extraction of groundwater and the
    use of added pumping facilities after CEQA took effect was considered a new project,
    severable from the original pre-CEQA aqueduct and, therefore, environmental review of
    that expanded water extraction program was required. (County of Inyo v. Yorty, supra, at
    pp. 804-808.) Water Districts’ position is that the assignment agreements merely
    38.
    provided a small degree of flexibility that did not appreciably expand the activity
    involved in the original pre-CEQA project.
    In support of Water Districts’ argument, there was substantial evidence in the
    record (including environmental documents prepared by the Bureau) that the water
    assignments merely afforded a measure of flexibility to potentially offset or minimize the
    shortages that regularly occurred in all but the wettest years regarding Westlands Water
    District’s water needs. That is, because the Bureau frequently had to reduce water
    allotments to levels well below the contracted amounts (due to regulatory constraints and
    other factors), the water assignments were needed to alleviate that deficiency and help
    bring the actual volume of water received by Westlands Water District somewhat closer
    to the originally contracted amounts, using existing facilities. Considered in that light,
    the assignment agreements (and renewals thereof) entered into by the Distribution
    Districts did not result in an expansion or material modification of the underlying activity
    that was approved in the original pre-CEQA project. Rather, the practical and primary
    effect of the assignment agreements was to facilitate the ability of Westlands Water
    District to receive a stable and adequate supply of water within the scope and parameters
    of the approved pre-CEQA original project. As such, the assignments were within the
    scope of, and incidental to, the ongoing original project. Additionally, unlike the
    situation in County of Inyo v. Yorty, supra, 
    32 Cal.App.3d 795
    , where there was a post-
    CEQA program that substantially increased groundwater extraction using new pumping
    facilities, here the assignments concerned existing CVP water rights as to water that was
    already (historically) being supplied to someone through the CVP by the Bureau, and that
    assigned water was to be delivered using only existing facilities, without any expansion.
    Therefore, we conclude there was substantial evidence that the activity authorized by the
    2012 interim renewal contracts (the assignment agreements) entered into by the
    Distribution Districts were within the ongoing projects exemption of Guidelines
    section 15261(a).
    39.
    But even assuming the 2012 interim renewal contracts entered into by the
    Distribution Districts were not part of (or incidental to) the original ongoing project, we
    would still find them to be exempt under the categorical exemption for existing facilities
    (see Guidelines, § 15301), which is addressed in part IV. of this opinion. The same
    would also be true of the 2012 interim renewal contract entered into by Westlands Water
    District. That is, all six of the 2012 interim renewal contracts fit within that categorical
    exemption, as will be seen, even if the ongoing projects exemption is inapplicable.
    D.     Special Exceptions Not Applicable
    We briefly mention the two exceptional situations referred to in Guidelines
    section 15261(a), in which the statutory exemption would not apply. First, under
    Guidelines section 15261(a)(1), an ongoing project approved prior to CEQA is exempt
    unless “[a] substantial portion of public funds allocated for the project have not been
    spent, and it is still feasible to modify the project to mitigate potentially adverse
    environmental effects .…” Here, the ongoing project before us was not in its early or
    formative stages, financially or otherwise. The facilities approved prior to CEQA were
    long ago completed, and the contractual water entitlements that were initiated prior to
    CEQA remain in place. Thus, the original project is funded, built-out, established in its
    operational parameters and continues to be carried out on those terms each year. Nothing
    in the record suggests that a substantial portion of funding approved prior to CEQA
    remains unspent. We conclude that the exceptional situation described in
    subdivision (a)(1) of Guidelines section 15261 is not present here.
    Second, subdivision (a)(2) of Guidelines section 15261 states that an ongoing
    project approved prior to CEQA is exempt unless “a public agency proposes to modify
    the project in such a way that the project might have a new significant effect on the
    environment.” No such current or new proposal for a modification of the project is
    before us. In any event, even examining past occurrences relating to the project, there is
    (as discussed above) substantial evidence to support the conclusion that even the water
    40.
    assignment agreements were not expansions of the original project, but were within the
    scope of, and incidental to, such project. In sum, the entire underlying activity that was
    approved prior to CEQA has remained essentially unchanged. Hence, the particular
    situation described in subdivision (a)(2) of Guidelines section 15261 is not present here.
    E.     Conclusion Regarding Ongoing Project Exemption
    We conclude that Water Districts’ approvals of the six 2012 interim renewal
    contracts came within the statutory exemption for ongoing projects as set forth in
    Guidelines section 15261(a). Substantial evidence confirmed that, pursuant to said 2012
    interim renewal contracts, CVP water would continue to be delivered within the
    parameters of the original pre-CEQA project for an additional two years, using the same
    facilities that were approved pre-CEQA. On that record, Water Districts correctly found
    the approvals to be exempt from compliance with CEQA.
    IV.    Categorical Exemption For Existing Facilities
    We now consider the applicability to this case of the categorical exemption for the
    continued use of existing facilities at the same level of use. As noted earlier herein,
    categorical exemptions are not statutory in nature but are enumerated in the Guidelines to
    identify classes or categories of projects that ordinarily have no significant effect on the
    environment. (See § 21084, subd. (a); Guidelines, § 15300 et seq.) They are always
    subject to basic exceptions delineated in the Guidelines. (Guidelines, § 15300.2,
    subds. (b) & (c).)
    A categorical exemption (numbered class 1) is recognized in the Guidelines for
    “the operation, repair, maintenance, permitting, leasing, licensing, or minor alteration of
    existing public or private structures, facilities, mechanical equipment, or topographical
    features, involving negligible or no expansion of use beyond that existing at the time of
    the lead agency’s determination.” (Guidelines, § 15301.) Examples in the Guidelines of
    the types of projects covered by this exemption include “[e]xisting facilities of …
    publicly-owned utilities used to provide electric power, natural gas, sewerage, or other
    41.
    public utility services.” (Guidelines, § 15301, subd. (b).) A water distribution system is
    an existing facility for purposes of this categorical exemption. (Turlock Irrigation Dist.
    v. Zanker (2006) 
    140 Cal.App.4th 1047
    , 1065-1066.) “The key consideration is whether
    the project involves negligible or no expansion of an existing use.” (Guidelines, § 15301;
    see also Communities for a Better Environment, 
    supra,
     48 Cal.4th at p. 326 [summarizing
    cases holding that “the continued operation of an existing facility without significant
    expansion of use … [is] exempt from CEQA review under CEQA Guidelines
    section 15301”].)
    Here, the project or activity authorized by Water Districts’ approvals of the 2012
    interim renewal contracts was a continuation for two years without any changes of the
    following: (i) use of existing facilities that were constructed in the past for the purpose of
    receiving and delivering CVP water and (ii) operation of those facilities to actually
    receive CVP water from the Bureau and deliver that water to customers for irrigation
    purposes on lands within Water Districts’ service areas. The amounts of CVP water at
    stake were the quantities specified in the chain of prior contracts between Water Districts
    and the Bureau, the terms of which were expressly continued without change. On this
    record, it is clear that the relevant activity came within the scope of the categorical
    exemption for existing facilities. Therefore, the categorical exemption prevails unless an
    exception defeats it.
    A.     Exceptions to Exemption
    Guidelines section 15300.2 sets forth the exceptions to categorical exemptions. It
    provides that categorical exemptions are inapplicable under certain conditions, including
    “where there is a reasonable possibility that the activity will have a significant effect on
    the environment due to unusual circumstances” (id., subd. (c)), and “when the cumulative
    impact of successive projects of the same type in the same place, over time is significant”
    (id., subd. (b)). Petitioners assert that these two exceptions were established in the
    42.
    present case. Before discussing these exceptions further, we briefly reiterate the legal
    landscape regarding the applicable standard of review in this unique CEQA context.
    Where, as here, an agency has established that a project comes within a categorical
    exemption, the burden shifts to the party challenging the exemption to show that it falls
    into one of the exceptions. (Fairbank, supra, 75 Cal.App.4th at p. 1259.) The substantial
    evidence test applies to an agency’s factual determination that a project comes within the
    scope of a categorical exemption. (Committee to Save the Hollywoodland Specific Plan
    v. City of Los Angeles, supra, 161 Cal.App.4th at p. 1187; Fairbank, supra, at p. 1251.)
    However, as we observed in part I. of this opinion, there is a split of authority concerning
    the standard of review applicable to the second stage of the agency’s analysis—that is,
    whether the project falls within an exception to the categorical exemption. (Fairbank,
    supra, at pp. 1259-1260; Hines v. California Coastal Com. (2010) 
    186 Cal.App.4th 830
    ,
    855-856.) Some courts have applied the “‘“fair argument”’” standard, meaning that a
    categorical exemption is defeated if there is a fair argument based on substantial evidence
    in the record that an exception is established; while other courts have applied the ordinary
    substantial evidence test to questions of fact relating to exceptions to categorical
    exemptions, deferring to the express or implied findings of the local agency that found a
    categorical exemption applicable. (Hines v. California Coastal Com., 
    supra, at p. 856
    )32
    We find it unnecessary to decide which of these views is correct because the result
    is the same in this case even under the less deferential fair argument standard, as we
    presently explain.
    32      Additional cases discussing the views on the applicable standard of review are set
    forth in our earlier discussion herein under part I., Standard of Review.
    43.
    1.     No Significant Effect Due to Unusual Circumstances
    Guidelines section 15300.2, subdivision (c), provides that “[a] categorical
    exemption shall not be used for an activity where there is a reasonable possibility that the
    activity will have a significant effect on the environment due to unusual circumstances.”
    “The application of Guidelines section 15300.2(c) involves two distinct inquiries. First,
    we inquire whether the Project presents unusual circumstances. Second, we inquire
    whether there is a reasonable possibility of a significant effect on the environment due to
    the unusual circumstances.” (Banker’s Hill, supra, 139 Cal.App.4th at p. 278.) “A
    negative answer to either question means the exception does not apply.” (Santa Monica,
    supra, 101 Cal.App.4th at p. 800.)
    (a)     Unusual Circumstances
    “[U]nusual circumstances” are those that (i) “differ from the general
    circumstances of the projects covered by the particular categorical exemption” and
    (ii) “create an environmental risk that does not exist for the general class of exempt
    projects.” (Azusa Land, supra, 52 Cal.App.4th at p. 1207.) What is “‘unusual’” is
    “judged relative to the typical circumstances related to an otherwise typically exempt
    project.” (Santa Monica, supra, 101 Cal.App.4th at p. 801.) An unusual circumstance is
    “‘some feature of the project that distinguishes it’ from others in the exempt class.” (San
    Lorenzo Valley Community Advocates for Responsible Education v. San Lorenzo Valley
    Unified School Dist. (2006) 
    139 Cal.App.4th 1356
    , 1381 (San Lorenzo).)
    Water Districts rely on the fact that Guidelines section 15301 lists, as an example
    of the type of project to which the existing facilities exemption would apply, “publicly-
    owned utilities” that are used to provide such things as “electric power, natural gas,
    sewerage, or other public utility services.” (Guidelines, § 15301, subd. (b).) A public
    agency providing water services to customers is also a utility. (See North Coast Rivers
    Alliance v. Marin Municipal Water Dist. Bd. of Directors (2013) 
    216 Cal.App.4th 614
    ,
    620 [water district is “a public utility which provides water to residents in its service
    44.
    area”].) Water Districts argue the project here did not involve unusual circumstances
    because, allegedly, it is not uncommon for utility-type public agencies to (i) have large-
    scale facilities operating at a large volume33 and (ii) impact the environment to some
    extent simply by existing and functioning as utilities (e.g., power plants, transmission
    lines, dams, water diversion facilities, or sewage treatment facilities).34 To summarize
    Water Districts’ position, neither the large scale of operations nor the incidental impacts
    were “unusual” for a utility-type project. Therefore, according to Water Districts, there
    are no unusual circumstances present and the exception does not apply.
    33      Water Districts listed a number of cases showing that public utilities may exist on
    a large scale; however, none of the identified cases dealt with the existing facilities
    exemption or the significant-effects exception thereto. (See, e.g., Pacific Gas & Electric
    Co. v. City and County of San Francisco (2012) 
    206 Cal.App.4th 897
    , 900 [hydroelectric
    project and power lines serve City and County of San Francisco]; Quantification
    Settlement Agreement Cases (2011) 
    201 Cal.App.4th 758
    , 772-774 [Imperial, Coachella,
    Metropolitan and San Diego districts import almost 4 million acre-feet of water per year
    and serve vast areas with thousands of canals and related distribution facilities]; Southern
    California Gas Co. v. South Coast Air Quality Management Dist. (2011) 
    200 Cal.App.4th 251
    , 258, 264 [utility’s natural gas facilities cover 20,000 square miles, including pipeline
    receiving point that directs up to 1.2 billion cubic-feet per day of natural gas into
    Southern California]; Sonoma County Water Coalition v. Sonoma County Water Agency
    (2010) 
    189 Cal.App.4th 33
    , 38 [water agency’s diversion and distribution facilities
    located in Russian River watershed serve 600,000 people]; City of Burbank v. State
    Water Resources Control Bd. (2005) 
    35 Cal.4th 613
    , 622 [city’s wastewater treatment
    facilities process and discharge hundreds of millions of gallons of sewage per day].)
    34     Water Districts refer to cases of utility-type operations that affected the
    environment as part of their usual operation. (See, e.g., Outfitter Properties, LLC v.
    Wildlife Conservation Bd. (2012) 
    207 Cal.App.4th 237
    , 242 [hydroelectric project
    consisting of diversion dams, miles of canals, and power plants affects sensitive species
    and habitat]; Sonoma County Water Coalition v. Sonoma County Water Agency, 
    supra,
    189 Cal.App.4th at pp. 43, 46-47 [diversion and distribution facilities located in the
    Russian River watershed affect endangered salmonid species and their habitat]; Center
    for Biological Diversity, Inc. v. FPL Group, Inc. (2008) 
    166 Cal.App.4th 1349
    , 1355
    [wind turbine generators operating in Altamont Pass kill and injure eagles, hawks,
    falcons, owls, etc.].) We note these cases did not involve the precise issues under
    consideration here.
    45.
    Petitioners argue that Water Districts’ view of what is “unusual” is too narrow.
    According to petitioners, since the water received by Water Districts comes from the
    CVP, which draws its water from the Delta, the diversion of more than 1 million acre-feet
    of water each year (or the portion thereof allotted by the Bureau) could potentially have
    an adverse effect on certain threatened fish populations and fragile habitat in the Delta.
    Additionally, petitioners assert that the water’s use for irrigation purposes could
    potentially add to the salt and selenium content in the soil and groundwater in the
    Westlands Water District area due to lack of drainage. According to petitioners, these
    constitute potential significant effects on the environment. Moreover, petitioners argue
    that to the extent there is a reasonable possibility the activity will lead to significant
    environmental effects, the unusual circumstances requirement is met and the exception
    set forth in Guidelines section 15300.2, subdivision (c), is established.
    Here, assuming for the sake of argument that petitioners are correct that the large
    scale of the water diversion at issue (combined with the fragile fish ecosystem in the
    Delta and the salt/selenium issues on the west side) constituted “unusual” circumstances,
    that premise would only satisfy one element of this exception. In order for the exception
    to apply, petitioners would also have to establish that there is a reasonable possibility the
    activity will have a significant effect on the environment due to such circumstances.
    In passing, we note there is a difference of opinion in the Courts of Appeal on how
    to apply the unusual circumstances language in Guidelines section 15300.2,
    subdivision (c). Most courts indicate there must be a showing of both unusual
    circumstances and a reasonable possibility of a significant effect on the environment due
    to such unusual circumstances. (See, e.g., Santa Monica, supra, 101 Cal.App.4th at
    pp. 800-801; San Lorenzo, supra, 139 Cal.App.4th at p. 1395; Fairbank, supra, 75
    Cal.App.4th at p. 1260.) Others appear to collapse the two elements into one, suggesting
    that if there is a reasonable possibility of a significant effect on the environment, that fact
    alone is sufficient to establish this exception. (See, e.g., Communities for a Better
    46.
    Environment v. California Resources Agency (2002) 
    103 Cal.App.4th 98
    , 129-130.)35 In
    the present case, it is unnecessary to resolve or harmonize these differences regarding the
    unusual circumstances requirement because here the exception fails under the second
    requirement. That is, once a correct environmental baseline is applied to assess the
    project’s impacts, it is clear that petitioners have failed to meet the requirement of
    showing a reasonable possibility of a significant effect on the environment, as explained
    below.
    (b)    No Significant Effect on the Environment
    In addition to the unusual circumstances requirement, the exception under
    consideration also requires “a reasonable possibility that the activity will have a
    significant effect on the environment .…” (Guidelines, § 15300.2, subd. (c).) Thus, if no
    basis for a significant effect on the environment is shown, the exception is not established.
    A “‘[s]ignificant effect on the environment’ means a substantial, or potentially
    substantial, adverse change in the environment.” (§ 21068, italics added; see also
    Guidelines, § 15382.) The focus of the inquiry is on “the physical conditions within the
    area affected by the project,” which includes “land, air, water, minerals, flora, fauna,
    ambient noise, and objects of historic or aesthetic significance.…” (Guidelines,
    § 15382.)
    In determining whether there is a potential for such an adverse change in the
    environment, the “baseline” environmental conditions against which a project is to be
    compared are the physical conditions existing at the time the agency makes its CEQA
    determination and/or approves the project. (Communities for a Better Environment,
    35     One such case is Berkeley Hillside Preservation v. City of Berkeley (2012) 
    203 Cal.App.4th 656
     (superseded by grant of review May 23, 2012, S201116), now pending
    before the California Supreme Court. The Supreme Court is likely to resolve the issue of
    the correct interpretation of Guidelines section 15300.2, subdivision (c), as well as the
    question of the appropriate standard of review for exceptions to categorical exemptions.
    47.
    supra, 48 Cal.4th at pp. 321-322 [“the impacts of a proposed project are ordinarily to be
    compared to the actual environmental conditions existing at the time of CEQA analysis”];
    Citizens for East Shore Parks v. State Lands Com. (2011) 
    202 Cal.App.4th 549
    , 558-559
    (East Shore Parks) [same]; Riverwatch v. County of San Diego (1999) 
    76 Cal.App.4th 1428
    , 1453 [“environmental impacts should be examined in light of the environment as it
    exists when a project is approved”].)
    Where a project involves ongoing operations or a continuation of past activity, the
    established levels of a particular use and the physical impacts thereof are considered to be
    part of the existing environmental baseline. (Communities for a Better Environment,
    
    supra,
     48 Cal.4th at pp. 320-323, 326-328 [refinery’s existing NOx emission levels
    constituted baseline for measuring adverse changes to environment of proposed diesel
    project]; East Shore Parks, supra, 202 Cal.App.4th at pp. 558-562 [baseline properly
    included current physical conditions and uses of operating marine terminal]; San Joaquin
    Raptor Rescue Center v. County of Merced (2007) 
    149 Cal.App.4th 645
    , 658 [established
    levels of mining operation part of baseline]; Lighthouse Field Beach Rescue v. City of
    Santa Cruz (2005) 
    131 Cal.App.4th 1170
    , 1196 [noting “the physical impacts of
    established levels of a particular use have been considered part of the existing
    environmental baseline”; thus, the agency needed only to analyze proposed increases in
    intensity or rate of use]; Fat v. County of Sacramento (2002) 
    97 Cal.App.4th 1270
    , 1274,
    1278 [impact of existing airport operations were part of baseline]; Fairview Neighbors v.
    County of Ventura (1999) 
    70 Cal.App.4th 238
    , 242 [baseline included established traffic
    levels from ongoing mining operations].)
    This baseline principle means that a proposal to continue existing operations
    without change would generally have no cognizable impact under CEQA. (East Shore
    Parks, supra, 202 Cal.App.4th at pp. 565-566 [since baseline included current operations
    of marine terminal, ongoing water discharges were part of that existing baseline, not an
    effect of the lease renewal under consideration]; Bloom v. McGurk (1994) 
    26 Cal.App.4th 48
    .
    1307, 1311-1312, 1315 (Bloom) [renewal of medical waste treatment facility’s permit
    with no significant change in operations was exempt as the continued operation of an
    existing facility].)36 In Bloom, for example, where the Court of Appeal held that an
    “‘existing facility’” under the class 1 categorical exemption was “a facility as it exists at
    the time of the agency’s determination, rather than a facility as it existed at the time
    CEQA was enacted,” the court emphasized that such conclusion was consistent with the
    rule that potential impacts are to be examined in light of the environment as it exists
    when a project is approved. (Bloom, supra, at p. 1315 & fn. 3.)37 Since there was no
    change from the baseline usage and no unusual circumstances were present with respect
    to the medical waste facility in that case, the existing facilities exemption was upheld.
    (Id. at pp. 1314-1317.)
    Applying these CEQA baseline principles, we conclude that petitioners failed to
    establish the “significant effect on the environment” portion of the exception set forth in
    Guidelines section 15300.2, subdivision (c). Even under the fair argument standard, the
    2012 interim renewal contracts and the activity contemplated therein were not shown to
    have the potential to cause a substantial adverse change from the environmental baseline
    36     The baseline is not the nonrenewal of the contracts. An inquiry as to what
    happens if the contracts are not renewed would be a “‘no project’” analysis, which CEQA
    expressly provides is not the baseline. (Guidelines, §§ 15125, subd. (a), 15126,
    subd. (e)(1).)
    37      In approving the existing facilities exemption as to the medical waste treatment
    facility in that case, the Court of Appeal in Bloom noted further: “We presume that
    thousands of permits are renewed each year for the ongoing operation of regulated
    facilities, and we discern no legislative or regulatory directive to make each such renewal
    an occasion to examine past CEQA compliance at every facility built in the last 24 years.
    That result would contravene the applicable statutes of limitation and the ordinary
    meaning of the words used in the class 1 exemption.” (Bloom, supra, 26 Cal.App.4th at
    p. 1315, fn. omitted.)
    49.
    at the time of Water Districts’ approvals, which baseline included existing physical
    conditions and established levels of CVP water distribution and use.
    Petitioners cited studies in the record that referred to the annual pumping and
    diversion of Delta water by the CVP (and the State Water Project) as one of many factors
    negatively affecting certain fish species such as the smelt and salmon. Petitioners also
    pointed to evidence in the record that the continued use of irrigation water on the west
    side of the San Joaquin Valley contributed to salt and selenium levels in the soil and/or
    groundwater of that area due to a lack of adequate drainage. Although the matters raised
    by petitioners are genuine concerns, the evidence was inadequate to show that the
    particular project under consideration (i.e., the 2012 interim renewal contracts) had a
    potential to bring about a substantial adverse change to the environment. This conclusion
    follows from two observations. First, the particular activities challenged by petitioners—
    i.e., the large volume of CVP water distributed to Water Districts and used for irrigation
    purposes on lands within Water Districts’ boundaries—were clearly part of the existing
    environmental baseline for Water Districts’ ongoing operations. Therefore, proof of a
    potential for adverse change in the environment from the conditions under the existing
    baseline is lacking. Second, even assuming that the asserted impacts of Water Districts’
    operations were not entirely subsumed within the existing environmental baseline, the
    evidence in the record was still inadequate to show that the brief period involved in the
    2012 interim renewal contracts (i.e., a mere two years) would potentially have a
    significant effect. For these reasons, we conclude that the exception in Guidelines
    section 15300.2, subdivision (c), to categorical exemptions is not supported by the record
    in this case.
    B.       No Cumulative Impact of Successive Projects
    The Guidelines also provide a cumulative impact exception to categorical
    exemptions, stating: “All exemptions for these classes are inapplicable when the
    cumulative impact of successive projects of the same type in the same place, over time is
    50.
    significant.” (Guidelines, § 15300.2, subd. (b).) “[T]he purpose of the requirement that
    cumulative impacts be considered … is to ensure review of the effects of the project in
    context with other projects of the same type.” (Save Our Carmel River v. Monterey
    Peninsula Water Management Dist. (2006) 
    141 Cal.App.4th 677
    , 703, italics added.)
    “Cumulative impact analysis is necessary because the full environmental impact of a
    proposed project cannot be gauged in a vacuum.” (Communities for a Better
    Environment v. California Resources Agency, 
    supra,
     103 Cal.App.4th at p. 114, fn.
    omitted.)
    A “cumulative impact from several projects” is defined in the Guidelines as “the
    change in the environment which results from the incremental impact of the project when
    added to other closely related past, present, and reasonably foreseeable probable future
    projects. Cumulative impacts can result from individually minor but collectively
    significant projects taking place over a period of time.” (Guidelines, § 15355, subd. (b);
    see § 21083, subd. (b)(2).) “‘[A] cumulative impact of a project is an impact to which
    that project contributes and to which other projects contribute as well. [¶] The project
    must make some contribution to the impact; otherwise it cannot be characterized as a
    cumulative impact of that project.’” (Sierra Club v. West Side Irrigation Dist. (2005) 
    128 Cal.App.4th 690
    , 700, italics added, quoting 1 Kostka & Zischke, Practice Under the Cal.
    Environmental Quality Act (Cont.Ed.Bar 2003) § 13.36, p. 533.)
    On this front, petitioners argue that the 2012 two-year, interim renewal contracts,
    when taken together with other such contracts (past and future) for the delivery of CVP
    water between the Bureau and Water Districts (and others), have a significant cumulative
    impact on the environment. According to petitioners, the successive contract renewals
    have created, incrementally and cumulatively, significant environmental harm over time,
    including salt and selenium buildup in the soil and groundwater, as well as harm to
    salmon, smelt and other endangered fish populations and their habitat in the Delta.
    51.
    Water Districts’ response is that we should not treat a renewal of the continuing
    operation of existing facilities (where no change in established levels of use will occur) as
    though it were an entirely new project with new impacts for purposes of CEQA review,
    because to do so would arguably circumvent CEQA’s baseline principles. In any event,
    even assuming that each new round of interim renewal contracts resulted in “successive
    projects” within the meaning of Guidelines section 15300.2, subdivision (b), Water
    Districts argue that there was no cumulative impact here. (See, e.g., East Shore Parks,
    supra, 202 Cal.App.4th at pp. 565-566 [applying baseline principles to cumulative impact
    analysis].) That is, viewed in their correct setting, each interim renewal merely continued
    forward the existing parameters for the delivery of water under the existing
    environmental baseline conditions, which baseline conditions included the impact of
    established levels of annual water use. Therefore, according to Water Districts, no new
    or added impacts were created by each successive interim renewal. (See id. at pp. 558-
    562, 566 [lease renewal of an operative marine terminal had no cumulative impact, since
    the effects were part of baseline of the existing marine terminal and not of the lease
    renewal].)
    Water Districts are correct that if each interim renewal is measured against the
    existing baseline at the time of its approval, then in each instance there would be no
    significant effect on the environment. (See discussion above relating to the significant
    effect exception set forth in Guidelines, § 15300.2, subd. (c).) Moreover, if we were to
    treat each interim renewal as having a zero impact for purposes of our cumulative
    impacts analysis, then the cumulative effect of adding each of them together would
    remain zero. As was stated in Santa Monica, supra, 101 Cal.App.4th at page 799: “Just
    as zero when added to any other sum results in no change to the final amount, so, too,
    when no environmental impacts cognizable under CEQA are added to the alleged
    environmental impacts of past projects, there is no cumulative increased impact.” Under
    this approach, the current project (the 2012 interim renewal contracts), when considered
    52.
    together with other such renewals (the successive projects), would have no cumulative
    impact. As noted by Water Districts, such an approach is consistent with the analysis
    used in East Shore Parks, supra, 202 Cal.App.4th at pages 565-566, where it was held
    that an environmental impact report did not need to discuss the cumulative impacts
    asserted by the petitioners in that case because the specified impacts were part of the
    existing baseline for the marine terminal’s current operative conditions, and not impacts
    of the newly approved project (i.e., the renewal of the marine terminal lease).38
    Petitioners’ rebuttal is that we are not dealing with a situation where baseline
    conditions, continued over time, create a sort of equilibrium where a certain number of
    fish are killed each year but everything else remains roughly the same. Instead,
    according to petitioners, the condition of the environment is growing steadily worse, with
    the combined impact of successive renewals contributing to the further significant
    deterioration of an already bad situation. In support of such assertion, petitioners point to
    evidence that CVP pumping in the Delta in conjunction with that of the State Water
    Project contribute to factors that jeopardize or threaten the continued existence of the
    delta smelt and certain salmon species, the numbers of which are steadily declining; and
    also that the continued use of irrigation water in the area of Westlands Water District is
    causing groundwater and soil to be increasingly degraded over time to the point that
    agricultural land must be retired. The gist of what petitioners are saying is that
    sometimes the collective whole, over time, creates impacts far greater than the sum of the
    individual parts.
    Whether or not petitioners’ argument is sufficient to overcome the force of Water
    Districts’ position that no cumulative harm exists because all incremental impacts were
    38      That same opinion also noted the fact that “baselines reflecting current conditions,
    including unauthorized and even environmentally harmful conditions,” sometimes means
    that “those conditions … never receive environmental review.” (East Shore Parks,
    supra, 202 Cal.App.4th at p. 561.)
    53.
    subsumed by the existing baseline, we hold that the present litigation was not the proper
    time for petitioners to raise that cumulative-impact claim because, here, the short-term
    interim renewal contracts did not constitute “successive projects of the same type”
    (Guidelines, § 15300.2, subd. (b)). Both the original 1963 water service contract (which
    provided for renewable, long-term water service contracts of 40-year periods) and the
    CVPIA (which in CVPIA, § 3404(c)) provided for renewals of the existing, long-term
    water service contracts for additional periods of 25 years) clearly recognized that this
    water distribution plan was to be carried out over long periods of time by means of
    renewable, long-term water service contracts.39 Looking to substance over form, then,
    the “successive projects of the same type” (Guidelines, § 15300.2, subd. (b)) are the long-
    term water service contracts that will, in due course, succeed each other. The parties are
    now in a temporary, interim period between the original, long-term water service contract
    and the anticipated, long-term renewal thereof, which interim was made necessary under
    the terms of the CVPIA solely as a brief, delaying action to give the Bureau more time to
    complete its environmental documentation. (CVPIA, § 3404(c).) Under the
    circumstances, we conclude that these short-term, interim renewal contracts did not
    amount to “successive projects of the same type” under Guidelines section 15300.2,
    subdivision (b).40 Consequently, if petitioners wish to pursue their argument in favor of
    the cumulative impacts exception to the categorical exemption, we believe the proper
    39     It may be that the water projects were understood to continue indefinitely,
    although we need not decide that matter. Here, we are merely focusing on the long-term
    nature of the contracts that allowed the operations to be carried out.
    40      Conceptually, the short-term, interim renewals were not new or distinct “other”
    projects (Guidelines, § 15355, subd. (b)), but extensions of the original, preexisting
    project (i.e., the continuation on identical terms of the preceding contracts), which under
    the circumstances do not constitute “successive projects of the same type” (Guidelines,
    § 15300.2., subd. (b)).
    54.
    time to do that will be in connection with Water Districts’ future consideration of whether
    to approve the anticipated, long-term renewal of the water service contract.
    This result is also in accord with notions of basic fairness and reasonableness in
    how CEQA is applied. As summarized previously herein, the CVPIA directed the
    Bureau to renew existing, long-term water service contracts once certain environmental
    studies by the Bureau were done. But the CVPIA further provided that until such
    environmental studies were completed, only interim renewal contracts of a very short
    duration could be entered into. The interim renewals were to be three years on the first
    occasion, with successive, interim periods of up to two years in length thereafter until the
    Bureau completed the required environmental documentation. (CVPIA, § 3404(c).)
    Thus, the CVPIA imposed interim renewal periods of artificially short durations to
    provide the Bureau with brief continuances, during which time the status quo would be
    maintained to bridge the gap. Since the exceptional brevity of each interim renewal
    period was not project driven, but was merely an expedient mechanism imposed by the
    CVPIA to assist the Bureau, we believe it would be unreasonable to insist that Water
    Districts conduct a full-scale environmental review under CEQA on the occasion of each
    two-year interval.41 Yet that would presumably be the outcome were we to treat each
    two-year, interim renewal as a distinct, successive project as petitioners would have us do
    and, assuming for the sake of argument, that petitioners are correct in their position on
    cumulative impact.42 We decline to elevate form over substance or to interpret CEQA in
    41     The CVPIA was intended, in part, to “improve the operational flexibility” of the
    CVP. (CVPIA, § 3402(c).) That purpose would be greatly obstructed, and the continued
    efficient provision of CVP water under existing entitlements would be thrown into a state
    of biannual uncertainty, if state law environmental review under CEQA were required
    with every two-year, interim renewal.
    42     We realize there is still the ongoing projects exemption, but for purposes of our
    present analysis, we are considering the existing facilities exemption on its own.
    55.
    a manner that would lead to such absurd or oppressive burdens. (See, e.g., Sierra Club.
    v. West Side Irrigation Dist., supra, 128 Cal.App.4th at p. 703 [“‘rules regulating the
    protection of the environment must not be subverted into an instrument [of] oppression
    and delay’”].)
    Accordingly, under the unique statutory context of this case, we hold that the brief,
    two-year, interim renewals at issue herein were not distinct or successive projects for
    purposes of Guidelines section 15300.2, subdivision (b) and, therefore, that exception
    was not established. On the record before us, the existing facilities categorical exemption
    was applicable to the 2012 interim renewal contracts and that exemption was not barred
    by either of the exceptions raised by petitioners.
    In light of the conclusions we have reached in this opinion regarding CEQA
    exemptions, it is unnecessary to address Water Districts’ additional arguments
    (procedural and otherwise) offered in support of their position that CEQA did not apply.
    DISPOSITION
    The judgment denying the petition for writ of mandate is affirmed. Costs on
    appeal are awarded to Water Districts.
    ____________________________
    Kane, J.
    WE CONCUR:
    __________________________
    Hill, P.J.
    __________________________
    Levy, J.
    56.