in-re-a-iao-ground-water-management-area-high-level-source-water-use ( 2012 )


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  •     *** FOR PUBLICATION IN WEST’S HAWAII REPORTS AND PACIFIC REPORTER ***
    Electronically Filed
    Supreme Court
    SCAP-30603
    15-AUG-2012
    09:14 AM
    IN THE SUPREME COURT OF THE STATE OF HAWAI#I
    ---o0o---
    IN RE #ÎAO GROUND WATER MANAGEMENT AREA HIGH-LEVEL
    SOURCE WATER USE PERMIT APPLICATIONS AND PETITION
    TO AMEND INTERIM INSTREAM FLOW STANDARDS OF
    WAIHE#E RIVER AND WAIEHU, #ÎAO, AND WAIKAPÛ
    STREAMS CONTESTED CASE HEARING
    NO. SCAP-30603
    APPEAL FROM THE COMMISSION ON WATER RESOURCE MANAGEMENT
    (CASE NO. CCH-MA06-01)
    AUGUST 15, 2012
    RECKTENWALD, C.J., NAKAYAMA, AND MCKENNA, JJ.,
    AND CIRCUIT JUDGE TRADER, IN PLACE OF DUFFY, J., RECUSED,
    WITH ACOBA, J., CONCURRING SEPARATELY
    OPINION OF THE COURT BY NAKAYAMA, J.
    I.   INTRODUCTION
    Nâ Wai #Ehâ, or “the four great waters of Maui,” is the
    collective name for the Waihe#e River and the Waiehu, #Îao, and
    Waikapû Streams.     The case before the court began in June 2004
    when Petitioners-Appellants/Cross-Appellees Hui1 O Nâ Wai #Ehâ
    1
    A “hui” is defined as, inter alia, a “[c]lub, association,
    society, corporation, company, institution, organization, band, league, firm,
    joint ownership, partnership, union, alliance, troupe, [or] team.” Mary
    continue...
    *** FOR PUBLICATION IN WEST’S HAWAII REPORTS AND PACIFIC REPORTER ***
    and Maui Tomorrow Foundation, Inc. (“Hui/MTF”), through
    Earthjustice, petitioned Appellee/Cross-Appellee Commission on
    Water Resource Management (“the Commission”) to amend the Interim
    Instream Flow Standards (“IIFS”) for Nâ Wai #Ehâ, which had been
    in place since 1988.      Around the same time, several parties,
    including Applicant-Appellee/Cross-Appellant Maui County
    Department of Water Supply (“MDWS”), and Applicants-
    Appellees/Cross-Appellees Hawaiian Commercial & Sugar Company
    (“HC&S”) and Wailuku Water Company (“WWC”), filed Water Use
    Permit Applications (“WUPA”) for the same area.           The Commission
    held a combined case hearing to resolve the IIFS and WUPA; in
    addition to the petitioner and applicants, the Office of Hawaiian
    Affairs (“OHA”) applied to participate in the hearing.             The
    current appeal seeks review of the Commission’s resulting
    Findings of Fact, Conclusions of Law (“FOF/COL”), and Decision
    and Order (“D&O”), in which the Commission amended the IIFS for
    two of the four streams, and substantially retained the existing
    IIFS for the two remaining streams as measured above diversions.2
    The FOF/COL and D&O also resolved several WUPA; the Commission’s
    1
    ...continue
    Kawena Pukui & Samuel H. Elbert, Hawaiian Dictionary 86 (rev. ed. 1986).
    2
    The Commission’s FOF/COL D&O differs from the 1988 IIFS in one
    important respect. In 1988, the Commission set the IIFS as the status quo at
    that time “without further amounts of water being diverted offstream through
    new or expanded diversions.” Haw. Admin. Rules § 13-169-48 (1988). The
    FOF/COL D&O states that the IIFS will “remain” as established above
    diversions, but does not contain the restriction limiting new or expanded
    diversions.
    2
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    resolution of the WUPA is not before the court on appeal.
    Hui/MTF and OHA appeal on related grounds.         Their
    primary complaint is that the Commission erred in balancing
    instream and noninstream uses, and therefore the IIFS do not
    properly protect traditional and customary native Hawaiian
    rights, appurtenant water rights, or the public trust.           Both
    parties also contest the Commission’s treatment of diversions,
    including the alternative source Well Number 7 (“Well No. 7”), a
    water well on HC&S’s plantation that could be used to irrigate
    HC&S’s cane fields.    The parties contest the Commission’s
    determination that HC&S will not be required to pump Well No. 7
    to its full capacity, a decision that resulted in a higher
    estimated allowable diversion for HC&S, and lower IIFS for the
    streams.
    MDWS’s cross-appeal asks the court to clarify the
    priority of noninstream municipal use in setting the IIFS.
    And finally, the Commission, HC&S, and WWC argue that
    the court does not have jurisdiction to hear Hui/MTF’s and OHA’s
    appeals.
    As explained below, the court holds that it has
    jurisdiction in the instant case, and takes this opportunity to
    expand upon the jurisdictional analysis from In re Water Use
    Permit Applications “Waiâhole I”, 94 Hawai#i 97, 
    9 P.3d 409
    ,
    (2000).    In reviewing Hui/MTF’s and OHA’s points of error, the
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    court concludes that the Commission on Water Resource Management
    erred in several respects.        First, in considering the effect of
    the IIFS on native Hawaiian practices in Nâ Wai #Ehâ, the
    Commission failed to enter findings of fact and conclusions of
    law regarding the effect of the amended IIFS on traditional and
    customary native Hawaiian practices in Nâ Wai #Ehâ, and regarding
    the feasibility of protecting any affected practices.             Second,
    the Commission’s analysis of instream uses was incomplete, as it
    focused on amphidromous species and did not fully consider other
    instream uses to which witnesses testified during the hearings.
    Third, the Commission erred in its consideration of alternative
    water sources and in its calculation of diverting parties’
    acreage and reasonable system losses.          The court must vacate the
    Commission’s June 10, 2010 Findings of Fact, Conclusions of Law,
    Decision and Order, and remand the case for further proceedings.
    II. BACKGROUND
    A.    Nâ Wai #Ehâ Water Systems
    1.    Surface Water3
    Nâ Wai #Ehâ are the Waihe#e River and Waiehu, #Îao, and
    3
    “‘Surface water’ means both contained surface water—that is, water
    upon the surface of the earth in bounds created naturally or artificially
    including, but not limited to, streams, other watercourses, lakes, reservoirs,
    and coastal waters subject to state jurisdiction—and diffused surface
    water—that is, water occurring upon the surface of the ground other than in
    contained water bodies. Water from natural springs is surface water when it
    exits from the spring onto the earth’s surface.” Hawai#i Revised Statutes
    (“HRS”) § 174C-3 (1993). Diffused surface water is “Water, such a rainfall
    runoff, that collects and flows on the ground but does not form a
    watercourse.” Black’s Law Dictionary 1728 (9th ed. 2009).
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    Waikapû Streams.      The Waihe#e River is the principal water source
    in Nâ Wai #Ehâ; it is about 26,585 feet long, and its watershed
    covers 4,500 acres.       From 1984-2005, United States Geological
    Survey (“USGS”) data shows streamflow upstream of all diversions
    as follows: the Q504 flow was 34 million gallons per day (“mgd”),
    the Q705 flow was 29 mgd, the Q90 flow was 24 mgd, and the Q100
    flow was 14 mgd.      The Waihe#e River’s two main diversions are
    Waihe#e Ditch and Spreckels Ditch.           See Section II.A.3., infra,
    for more information about the ditches.            The two ditches are
    capable of diverting all of the dry-weather flow available at the
    intakes, however, even if all the water is being diverted,
    streamflow immediately downstream of the intakes may exist
    because of leakage through or subsurface flow beneath the dams at
    these sites.     The dry-weather flow downstream of the intakes is
    commonly about 0.1 mgd, but the stream may not have continuous
    mauka-to-makai surface flow.
    The Waiehu Stream is formed by the confluence of North
    and South Waiehu Streams; it is about 23,700 feet long, and its
    4
    Discussions of   the volume of water in a stream utilize flow-
    duration curves to express    the percentage of time that streamflows were
    equaled or exceeded during    a given period of record. The Q50 flow, also known
    as the median flow, is the    flow that is equal or exceeded 50 percent of the
    time; the Commission found    that the Q50 flow is “reflective of typical flow
    conditions.”
    5
    To illustrate the previous footnote, the Q70 flow is the volume of
    water that is equaled or exceeded 70 percent of the time during any given time
    period. The Waihe#e River showed streamflows of at least 29 mgd 70 percent of
    the time from 1984-2005.
    5
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    watershed covers about 6,600 acres.       Gaging stations on both
    branches of the Waiehu Stream were discontinued in 1917, but USGS
    used historical data and record-extension techniques to estimate
    flows above all diversions for North Waiehu Stream from 1984-2005
    as follows: the Q50 flow was between 3.1 to 3.6 mgd, the Q70 flow
    was between 2.3 to 2.7 mgd, the Q90 flow was between 1.4 to 2.7
    mgd, and the Q100 flow was 1.6 mgd (as measured in March 1915).
    For South Waiehu Stream, USGS utilized the same record extension
    techniques, and estimated the 1984-2005 flows as follows: the Q50
    flow was between 2.4 to 4.2 mgd, the Q70 flow was between 1.9 to
    2.8 mgd, the Q90 flow was between 1.3 to 2.0 mgd, and the Q100
    flow was 1.5 mgd (recorded in July 1913).         The Waihe#e and
    Spreckels Ditches divert water from both North and South Waiehu
    Streams; in addition, the North Waiehu Ditch diverts from the
    North Waiehu Stream and the Cerizos Kuleana Ditch diverts from
    the South Waiehu Stream.     There is extensive channel erosion
    below the Spreckels Ditch on South Waiehu Stream, with a 12-foot
    drop in the elevation of the stream just below the diversion, and
    there is a vertical concrete apron located in Waiehu Stream.
    Most of the water is diverted from North and South Waiehu Streams
    at the North Waiehu Ditch and Spreckels Ditch, respectively; due
    to these diversions and leakage, Waiehu Stream does not flow
    continuously from mauka to makai.
    #Îao Stream is the second-largest stream in Nâ Wai #Ehâ;
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    it is about 38,000 feet long, and its watershed covers about
    14,500 acres.   USGS calculated the 1984-2005 flows above all
    diversions as follows: the Q50 flow was 25 mgd, the Q70 flow was
    18 mgd, the Q90 flow was 13 mgd, and the Q100 flow was 7.1 mgd.
    The two main diversions off the #Îao Stream are the #Îao-
    Waikapû/#Îao-Maniania Ditches at an altitude of 780 feet, and the
    Spreckels Ditch at 260 feet.      The United States Army Corps of
    Engineers channelized significant portions of #Îao Stream’s lower
    reaches and hardened the stream bed and banks with concrete for
    flood control and drainage.      About 2.5 miles above the mouth of
    the Stream, the concrete channel includes a 20-foot vertical
    drop.   USGS estimates that #Îao Stream loses 6.3 mgd in reaches
    downstream of the #Îao-Maniania ditch diversion that are not
    lined with concrete.    In absence of ditch return flows or runoff
    during and following rainfall, #Îao Stream is dry and does not
    flow continuously from mauka to makai.
    The Waikapû Stream is the southern-most stream and the
    longest of the four streams; it is about 63,500 feet in length,
    with a watershed of about 9,000 acres.        USGS, using record
    extension techniques, estimated the 1984-2005 flows above all
    diversions as follows: the Q50 flow was between 4.8 to 6.3 mgd,
    the Q70 flow was between 3.9 to 5.2 mgd, and the Q90 flow was
    between 3.3 to 4.6 mgd.     The lowest recorded flow for Waikapû
    Stream was 3.3 mgd, in October 1912.        There are three diversions
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    off the Waikapû Stream: the South Side Waikapû Ditch (also known
    as the South Waikapû Ditch) near an altitude of 1,120 feet, the
    Waihe#e Ditch, and the Reservoir 6 Ditch.          The Waikapû Stream is
    commonly dry downstream of all diversions, both because of the
    diversions and because of infiltration losses into the streambed;
    the Stream does not flow continuously from mauka to makai.
    2.    Ground Water6
    There are three types of ground water in Nâ Wai #Ehâ
    water systems: dike-impounded, the basal freshwater lens, and
    perched.    Dike-impounded ground waters occur at high elevations;
    basal freshwater lenses and perched waters occur at lower
    elevations and closer to the coast.
    The dikes at higher elevations are low-permeability, so
    water builds up behind them.        The upper reaches of Nâ Wai #Ehâ
    streams intersect the dike-impounded ground water so the upper
    reaches have year-round streamflow, even during dry periods.                The
    portions of the stream joined by the dike-impounded water are
    described as “gaining” because ground water contributes to
    streamflow.
    The basal freshwater lens system is contained in
    volcanic rocks and sedimentary deposits.          Perched water also
    6
    “‘Ground water’ means any water found beneath the surface of the
    earth, whether in perched supply, dike-confined, flowing, or percolating in
    underground channels or streams, under artesian pressure or not, or
    otherwise.” HRS § 174C-3.
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    occurs in the sedimentary deposits.       In the lower reaches of the
    streams where an unsaturated zone exists between the streams’
    channel bottoms and the water table, stream waters migrate from
    the stream beds to the basal lenses, and the streams are
    described as “losing.”     Some of the stream channels intersect the
    basal freshwater lens near the mouths of the streams, making the
    streams “gaining” in those areas.
    The Commission considered the IIFS for Nâ Wai #Ehâ with
    the WUPA for the high-level dike-impounded ground water.            As the
    Hearings Officer, Dr. Lawrence H. Miike, explained, the
    Commission decided to combine the issues into one contested case
    hearing because the water systems are all connected and
    considering the WUPA and IIFS together would allow the Commission
    “to get a bigger picture and to be able to try to reach a more
    rational and reasonable decision . . . .”         One example of the
    interconnectedness of the high-level dike-impounded ground water
    and the surface waters is the tunnel system.         Several tunnels tap
    dike-impounded ground water and discharge directly into the
    streams.   In some cases, denial of a WUPA for dike-impounded
    ground water results in additional water contributing to
    streamflow.
    3.    Ditches
    There are two primary and two secondary systems that
    distribute water diverted from Nâ Wai #Ehâ.        The primary systems
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    are WWC’s ditch system and HC&S’s reservoir/ditch system.             Nine
    active diversions feed the primary distribution system: two on
    Waihe#e River, one on North Waiehu Stream, one on South Waiehu
    Stream, two on #Îao Stream, and three on Waikapû Stream.             There
    are two major ditches in the system: the Waihe#e and Spreckels
    Ditches.    The WWC distribution system involves eleven registered
    stream diversions, two major ditches, seven minor ditches, and
    sixteen reservoirs; HC&S shares in the cost and maintenance of
    portions of this system.       HC&S also operates a diversion intake
    on South Waiehu Stream at the Spreckels Ditch, a diversion intake
    on #Îao Stream at the Spreckels Ditch, and the Spreckels Ditch
    from Reservoir 25 to its terminus at HC&S’s Reservoir 73.             The
    waters that enter the distribution system travel by gravity flow
    in primary ditches through uplands into reservoirs that in turn
    deliver the water into smaller ditches for end use.
    The secondary systems are the so-called “kuleana”7
    ditches/pipes that either have an intake directly in a stream or
    receive water from the primary systems and the MDWS water
    treatment plants.     The Commission identified seventeen kuleana
    ditch/pipe systems.      Fourteen kuleana systems are connected to
    the primary distribution systems; three kuleana intakes connect
    7
    The term “kuleana” is used by the parties to describe the
    distribution system and users who were not charged for water delivery; whether
    the users have riparian or appurtenant rights had not been determined at the
    time of the Commission’s hearings.
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    directly to the streams.
    B.    Procedural History
    On July 21, 2003, the Commission designated the #Îao
    Aquifer System a Ground Water Management Area (“GWMA”).             After a
    water source is designated as a GWMA, existing users have one
    year to file WUPA.      See Hawai#i Revised Statutes (“HRS”) § 174C-
    50(c) (1993) (“An application for a permit to continue an
    existing use must be made within a period of one year from the
    effective date of designation.”)           The water code provides that
    the Commission may issue permits for existing reasonable and
    beneficial uses, and places the burden of proof on the applicant
    to show that it satisfies the relevant criteria.            HRS §§ 174C-
    49(a), 174C-50 (1993).       As discussed in the following subsection,
    several parties filed such WUPA for ground water sources.
    The water code also provides that “[a]ny person with
    the proper standing may petition the commission to adopt an
    interim instream flow standard for streams in order to protect
    the public interest pending the establishment of a permanent
    instream flow standard.”       HRS § 174C-71(2)(A) (1993).        Hui/MTF
    filed such a petition; it is the Commission’s resolution of this
    petition that is currently before the court on appeal.
    On March 13, 2008, during the pendency of the Hearings,
    the Commission also designated the four streams of Nâ Wai #Ehâ a
    Surface Water Management Area (“SWMA”).           Like the GWMA
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    designation, the SWMA designation triggered WUPA requirements.
    The resolution of those WUPA are not currently before the court,
    but they are relevant because the Commission utilized estimates
    of expected surface water use permits in determining the IIFS for
    the water system.
    1.    Water Use Permit Applications
    MDWS, HC&S, and WWC’s predecessor in interest, Wailuku
    Agribusiness Company, Inc.,8 filed timely WUPA for #Îao Aquifer
    sources.      Hui/MTF and OHA filed objections to the WUPA.           The
    Commission held public hearings on the WUPA on October 28, 2004;
    April 22, 2005; and February 2, 2006.             Prior to the close of the
    third hearing, several attendees, including MDWS, WWC, Hui/MTF,
    and OHA, verbally requested that the Commission hold a Contested
    Case Hearing (“CCH”) regarding the WUPA.             Subsequently, the
    parties filed written petitions to that effect.
    2.    Petition to Amend Interim Instream Flow Standards
    In June of 2004, Hui/MTF filed a Petition to Amend
    Interim Instream Flow Standards.             In its petition, Hui/MTF argued
    that the then-existing standards, which had been in place since
    1988, lacked any scientific basis and merely preserved the status
    quo without addressing the public trust, environmental concerns,
    native Hawaiian practices, outdoor and recreational activities,
    8
    WWC filed Requests to Transfer Wailuku Agribusiness’s permits to
    WWC.
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    or aesthetic and scenic values, as required by the water code.
    Hui/MTF requested that the Commission establish scientifically-
    based IIFS and order restoration of all streamflows not currently
    put to beneficial use.
    HC&S and Wailuku Agribusiness Company filed comments to
    the petition, largely arguing that their use is reasonable and
    beneficial, that the petition did not prove the necessity of
    establishing new standards, and that the Petition did not show
    how native Hawaiian practitioners would use the water or how much
    they would need to use.     Hui/MTF responded that the burden falls
    on the Commission, not on Hui/MTF, to determine reasonable IIFS
    and to protect instream public trust uses and native Hawaiian
    rights.
    3.   Contested Case Hearing
    At its February 15, 2006 meeting, the Commission
    decided that a CCH would be held for the ground water WUPA and
    the IIFS together.    On May 4, 2006, the Commission released a
    “Notice of a Combined Contested Case Hearing (CCH-MA-06-01)
    Concerning Water Use Permit Applications For Maui Department of
    Water Supply, Hawaiian Commercial and Sugar, and Wailuku Water
    Company, LLC; Iao Ground Water Management Area, Maui, and
    Petitions to Amend the Interim Instream Flow Standards for Iao,
    Waiehu, Waihee, & Waikapu Streams.”       One of the Commissioners,
    Dr. Lawrence Miike, was appointed Hearings Officer.           After a
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    hearing, Dr. Miike granted standing to five of the parties
    presently before the court: HC&S, Hui/MTF, MDWS, OHA, and WWC.
    Dr. Miike held twenty-three days of hearings between
    December 3, 2007 and March 4, 2008; by the end of the evidentiary
    phase of the hearing, seventy-seven witnesses had testified and
    over six hundred exhibits had been accepted into evidence.            After
    the conclusion of the Hearings, Dr. Miike reopened evidence, on
    motions of two parties, to admit two additional exhibits: HC&S
    offered a study it commissioned from John Ford, an environmental
    consultant, which had not been completed at the time of the
    Hearing, and OHA offered a portion of an Environmental Impact
    Statement Preparation Notice for the Wai#ale Water Treatment
    Facility.    HC&S, MDWS, WWC, and Hui/MTF submitted proposed
    Findings of Fact and Conclusions of Law.        OHA joined Hui/MTF’s
    proposals.
    4.     Dr. Miike’s Proposed Findings of Fact, Conclusions of
    Law, Decision and Order
    On April 9, 2009, Dr. Miike released his proposed
    FOF/COL D&O (“Proposed FOF/COL”).        The Proposed FOF/COL consisted
    of 617 FOF regarding Nâ Wai #Ehâ’s water systems, fish and
    wildlife habitats, traditional and customary native Hawaiian
    practices, users and uses, and the projected economic impact of
    restricting noninstream uses.      The Proposed FOF/COL also included
    297 COL, on topics including instream values, users and uses,
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    alternative water resources, system losses, economic impacts of
    restricting noninstream uses, IIFS, and WUPA.         Many of the
    Proposed FOF/COL were ultimately adopted by the Commission in the
    final FOF/COL, as discussed in subsequent sections, infra.
    Dr. Miike’s Proposed Decision amended the IIFS for all
    four streams, as follows: the IIFS for the Waihe#e River would be
    14 mgd downstream of diversions; for North and South Waiehu
    Streams, the IIFS would be 2.2 mgd and 1.3 mgd, respectively; for
    #Îao Stream, the IIFS would be 13 mgd; and for Waikapû Stream,
    the IIFS would be 4 mgd, with contingencies to adjust the IIFS or
    its point of measurement.     The proposed IIFS limited diversions
    enough to increase streamflow to a level that should have
    established mauka-to-makai flow in all four streams.           The
    Proposed FOF/COL also concluded that Well No. 7 is an alternative
    source for HC&S, and that it can supply 14 mgd of HC&S’s water
    requirements.
    The Commission permitted parties to file written
    Exceptions to Dr. Miike’s Proposed FOF/COL and D&O; each party
    filed such Exceptions.     On October 15, 2009, the Commission
    convened to hold a hearing on the parties’ Exceptions.
    In their written exceptions and their presentations to
    the Commission, Hui/MTF and OHA argued that the IIFS should be
    higher for several reasons.      They argued that the Commission
    should allow fewer commercial diversions because the companies’
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    actual water needs are lower than the Commission’s estimates,
    that the diverting parties should be required to eliminate system
    waste by lining ditches and reservoirs, and that HC&S should be
    required to pump Well No. 7 to full capacity.         Regarding kuleana
    rights, Hui/MTF and OHA claimed that while the provisions made
    for kuleana users were adequate for current and planned uses of
    kuleana users who testified, they were inadequate to provide for
    all kuleana users in the system.         Furthermore, they argued that
    the Commission should not defer to future proceedings for
    determinations of appurtenant rights and the reasonable-
    beneficial uses of noninstream users.
    MDWS objected to several of the Proposed FOF/COL.            MDWS
    argued that the IIFS for #Îao Stream would restrict diversions
    such that it could not operate its #Îao Water Treatment Facility
    to serve domestic needs of Maui residents.         MDWS also objected to
    several of the Proposed FOF/COL indicating that the IIFS should
    be set without considering “offstream public trust uses, such as
    the public water supply.”
    WWC’s exceptions argued that the Proposed FOF/COL did
    not properly balance instream and noninstream uses, and were too
    severe in their limitations of noninstream uses.          WWC argued that
    nothing in the water code required the Commission to establish
    mauka-to-makai streamflows, and that the Proposed FOF/COL’s
    efforts to do so reflect an improper emphasis on instream values.
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    HC&S offered similar exceptions, arguing that the
    Proposed FOF/COL tipped the balance too sharply in favor of
    stream restoration.      HC&S encouraged the Commission to consider
    the water system as a whole, instead of focusing on
    reestablishing mauka-to-makai streamflow in each individual
    stream.    HC&S also argued that the Proposed FOF/COL did not
    adequately consider the economic impact of restricting HC&S’s
    noninstream uses or of requiring HC&S to pump Well No. 7.             HC&S
    emphasized that it employed about eight hundred workers on Maui,
    and that reduction in water “would jeopardize the viability of
    HC&S.”     If HC&S were to cease operation, HC&S argued, those eight
    hundred jobs, and the HC&S’s other substantial contributions to
    the Maui economy would be lost.
    5.    The Commission’s Final Findings of Fact, Conclusions of
    Law, Decision and Order
    On June 10, 2010, the Commission released its final
    FOF/COL and D&O.     The Commission reached 617 FOF and 276 COL,
    adopting most of the Proposed FOF/COL but revisiting some.              Most
    notably, the D&O amended the IIFS for only the Waihe#e River (to
    10 mgd) and the North and South Waiehu Streams9 (to 1.6 and 0.9
    9
    The IIFS for South Waiehu Stream has not been implemented.
    Hui/MTF, OHA, MDWS, WWC, and HC&S entered into a series of stipulations
    suspending the implementation; the Commission approved each stipulation. The
    impetus for the stipulations appears to be complaints from kuleana users who
    did not participate in the CCH and who take water from the ditch system off
    South Waiehu Stream. South Waiehu Stream was one of the streams for which
    actual streamflow measurements were not available at the time of the hearings;
    the Commission utilized USGS estimates based on record extension techniques to
    continue...
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    mgd, respectively); it maintained the status quo, thereby not
    restricting any of the parties’ diversions, for the #Îao and
    Waikapû Streams.     It also lowered the amount of water HC&S was
    required to pump from Well No. 7 to 9.5 mgd, a significant
    decrease of 4.5 mgd from the Proposed FOF/COL.
    Dr. Miike dissented from the decision.          Dr. Miike
    agreed with the Commission majority regarding water requirements
    for kuleana users, MDWS, and WWC.         Dr. Miike also agreed with
    most of the analysis regarding HC&S’s irrigation requirements.
    The basis for Dr. Miike’s dissent was the Commission majority’s
    allocation of water between instream uses and HC&S’s diversions.
    His strongest objection was to the Commission’s treatment of Well
    No. 7; Dr. Miike would have required HC&S to pump higher
    quantities of water from the well during dry-weather conditions,
    thereby retaining more water in the streams for instream and
    downstream uses.     Dr. Miike argued that the Commission’s decision
    reflected a residual approach in that it set the IIFS as the
    amount of water remaining after satisfying all noninstream uses.
    Last, Dr. Miike objected to the Commission majority’s evaluation
    of the economic impact of restricting HC&S’s water.            He asserted
    9
    ...continue
    set the IIFS. In the time since the first stipulation, the Commission has
    worked on collecting actual streamflow data, and it started the process of
    determining and quantifying appurtenant rights of users on South Waiehu
    Stream. HC&S repaired a portion of its diversion infrastructure, and the
    parties have discussed modifications to the ditch system, pending final
    determination of appurtenant rights.
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    that the Commission cannot assume that the Proposed FOF/COL would
    have resulted in HC&S’s “doomsday scenario” in which the water
    restrictions render its entire operation impractical.            Dr. Miike
    argued that the accurate point of analysis would be the economic
    effect of limiting availability of water to the 15 percent of
    HC&S’s fields that are in west Maui.        Dr. Miike noted that,
    rather than providing this analysis, HC&S “instead outlined the
    consequences if its entire 35,000 acre sugar operations were
    ended.”   As Dr. Miike explained:
    Absent an economic analysis by HC&S, the Commission cannot
    assume that HC&S’s doomsday scenario would result from an
    occasional 10.5 to 13.4 percent decrease of its irrigation
    requirements for 15 percent of its entire operations. Those
    decreases equate to only 1.6 to 2.0 percent of its
    irrigation requirements for its entire 35,000-acre
    operations, and then only on an occasional basis. In the
    absence of any information supporting its doomsday scenario,
    the Commission could not assume that HC&S’s assertions
    overcame the presumption in favor of the public trust
    resource, the streams of Nâ Wai #Ehâ.
    Dr. Miike concluded that the Commission majority “has failed in
    its duties under the Constitution and the State Water Code as
    trustee of the state’s public water resources.”
    6.    Appellate Filings
    On July 14, 2010, OHA and Hui/MTF filed their Notices
    of Appeal.   On July 30, 2010, MDWS filed its Notice of Cross-
    Appeal.   On February 23, 2011, MDWS, OHA, and Hui/MTF filed their
    Opening Briefs in the Intermediate Court of Appeals.           On April
    18, 2011, Hui/MTF filed an application to transfer the case to
    the supreme court; OHA joined this motion.         On June 23, 2011,
    19
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    this court accepted the application for transfer.
    III.    STANDARDS OF REVIEW
    A.    Judicial Review of the Water Commission’s Decisions
    The water code provides that “[j]udicial review of
    rules and orders of the commission under this chapter shall be
    governed by chapter 91.        Trial de novo is not allowed on review
    of commission actions under this chapter.”           HRS § 174C-12 (1993).
    Chapter 91 articulates the standards of review applicable to
    appeals of agency decisions and provides:
    Upon review of the record the court may affirm the decision
    of the agency or remand the case with instructions for
    further proceedings; or it may reverse or modify the
    decision and order if the substantial rights of the
    petitioners may have been prejudiced because the
    administrative findings, conclusions, decisions, or orders
    are:
    (1) In violation of constitutional or statutory
    provisions; or
    (2) In excess of the statutory authority or
    jurisdiction of the agency; or
    (3) Made upon unlawful procedure; or
    (4) Affected by other error of law; or
    (5) Clearly erroneous in view of the reliable,
    probative, and substantial evidence on the whole
    record; or
    (6) Arbitrary, or capricious, or characterized by
    abuse of discretion or clearly unwarranted exercise of
    discretion.
    HRS § 91-14 (g) (1993).        “This court’s review is . . . qualified
    by the principle that the agency’s decision carries a presumption
    of validity, and appellant has the heavy burden of making a
    convincing showing that the decision is invalid because it is
    unjust and unreasonable in its consequences.”           In re Wai#ola O
    Moloka#i, Inc., 103 Hawai#i 401, 420, 
    83 P.3d 664
    , 683 (2004)
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    (citations, brackets omitted).
    B.    Findings of Facts
    “FOFs are reviewable under the clearly erroneous
    standard to determine if the agency decision was clearly
    erroneous in view of reliable, probative, and substantial
    evidence on the whole record.”        Id. at 421, 
    83 P.3d at 684
    (citations, brackets omitted).
    C.    Conclusions of Law
    “COLs are freely reviewable to determine if the
    agency’s decision was in violation of constitutional or statutory
    provisions, in excess of statutory authority or jurisdiction of
    agency, or affected by other error of law.”           
    Id.
     (citations,
    brackets omitted).
    D.    Mixed Questions of Law and Fact
    A COL that presents mixed questions of fact and law is
    reviewed under the clearly erroneous standard because the
    conclusion is dependent upon the facts and circumstances of
    the particular case. When mixed questions of law and fact
    are presented, an appellate court must give deference to the
    agency’s expertise and experience in the particular field.
    The court should not substitute its own judgment for that of
    the agency.
    Waiâhole I, 94 Hawai#i at 119, 
    9 P.3d at 431
     (citations, brackets
    omitted).
    An FOF or a mixed determination of law and fact is clearly
    erroneous when (1) the record lacks substantial evidence to
    support the finding or determination, or (2) despite
    substantial evidence to support the finding or
    determination, the appellate court is left with the definite
    and firm conviction that a mistake has been made.
    
    Id.
     (citation).     “We have defined ‘substantial evidence’ as
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    credible evidence which is of sufficient quality and probative
    value to enable a person of reasonable caution to support a
    conclusion.”     
    Id.
     (citation).
    E.     The State Water Resources Trust
    The public trust in state water resources is a
    constitutional doctrine, and as such, “the ultimate authority to
    interpret and defend the public trust in Hawai#i rests with the
    courts of this state.”       Wai#ola, 103 Hawai#i at 421, 
    83 P.3d at 684
    .
    This is not to say that this court will supplant its
    judgment for that of the legislature or agency. However, it
    does mean that this court will take a ‘close look’ at the
    action to determine if it complies with the public trust
    doctrine and it will not act merely as a rubber stamp for
    agency or legislative action.
    Id. at 422, 
    83 P.3d at 685
    .
    F.     Constitutional Questions
    “We answer questions of constitutional law by
    exercising our own independent constitutional judgment based on
    the facts of the case.       Thus, we review questions of
    constitutional law under the right/wrong standard.”             State v.
    Hanapi, 89 Hawai#i 177, 182, 
    970 P.2d 485
    , 490 (1998) (citations
    omitted).
    IV.   JURISDICTION
    Before the court can consider the parties’ points of
    error, it must first resolve a jurisdictional argument.             Kernan
    v. Tanaka, 
    75 Haw. 1
    , 15, 
    856 P.2d 1207
    , 1215 (1993) (cert.
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    denied, 
    510 U.S. 1119
     (1994)) (“Appellate courts have an
    obligation to insure they have jurisdiction to hear and determine
    each case.”)    The Commission, HC&S, and WWC argue that Hui/MTF
    and OHA do not have a right of appeal, and therefore the court
    has no jurisdiction in this matter.       Hui/MTF and OHA both contend
    that the court’s opinion in Waiâhole I resolves the issue and
    clearly establishes that the court has jurisdiction over appeals
    of IIFS determinations.     As explained below, the court holds that
    it has jurisdiction in this case, and takes this opportunity to
    elaborate on the jurisdictional analysis from Waiâhole I.
    The water code provides that “[j]udicial review of
    rules and orders of the commission under this chapter shall be
    governed by chapter 91.”     HRS § 174C-12.     HRS § 91-14, the
    portion of chapter 91 relating to judicial review, states that,
    “[a]ny person aggrieved by a final decision and order in a
    contested case . . . is entitled to judicial review thereof under
    this chapter.”    HRS § 91-14(a) (1993).      In previous cases
    interpreting this provision, the court has defined “contested
    case” as “an agency hearing that 1) is required by law and 2)
    determines the rights, duties, or privileges of specific
    parties.”    Pele Defense Fund v. Puna Geothermal Venture, 77
    Hawai#i 64, 67-68, 
    881 P.2d 1210
    , 1213-14 (1994).          Further, the
    court determined that a hearing is “required by law” if it is
    required by statute, by administrative rule, or by constitutional
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    due process.    Id. at 68, 
    881 P.2d at 1214
    .
    In this case, neither statute nor administrative rule
    mandates a hearing to establish an IIFS.          HRS § 174C-7110 governs
    the Commission’s actions vis-a-vis the state’s Instream Use
    Protection Program, and nothing in that statute requires the
    Commission to hold a hearing before establishing or amending an
    10
    HRS § 174C-71, Protection of Instream Uses, provides, in relevant
    part, that the Commission shall:
    (2) Establish interim instream flow standards;
    (A) Any person with the proper standing may petition the
    commission to adopt an interim instream flow standard for
    streams in order to protect the public interest pending the
    establishment of a permanent instream flow standard;
    (B) Any interim instream flow standard adopted under this
    section shall terminate upon the establishment of a
    permanent instream flow standard for the stream on which the
    interim standards were adopted;
    (C) A petition to adopt an interim instream flow standard
    under this section shall set forth data and information
    concerning the need to protect and conserve beneficial
    instream uses of water and any other relevant and reasonable
    information required by the commission;
    (D) In considering a petition to adopt an interim instream
    flow standard, the commission shall weigh the importance of
    the present or potential instream values with the importance
    of the present or potential uses of water for noninstream
    purposes, including the economic impact of restricting such
    uses;
    (E) The commission shall grant or reject a petition to adopt
    an interim instream flow standard under this section within
    one hundred eighty days of the date the petition is filed.
    The one hundred eighty days may be extended a maximum of one
    hundred eighty days at the request of the petitioner and
    subject to the approval of the commission;
    (F) Interim instream flow standards may be adopted on a
    stream-by-stream basis or may consist of a general instream
    flow standard applicable to all streams within a specified
    area[.]
    HRS § 174C-71(2) (1993).
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    IIFS.      In fact, the code indicates that the Commission need not
    hold a hearing; the Code defines the IIFS as “a temporary
    instream flow standard of immediate applicability, adopted by the
    commission without the necessity of a public hearing, and
    terminating upon the establishment of an instream flow standard.”
    HRS § 174C-3.      The Commission’s administrative rules are
    identical to the water code in relevant regard, so there is no
    rule-based requirement to hold a hearing.11
    This does not foreclose judicial review of the
    Commission’s actions, as there remains a third route whereby a
    hearing may be “required by law”: there may be a constitutional
    due process requirement.       In determining whether a party has a
    due process right to an administrative hearing, the court must
    first resolve whether the party’s asserted interest is
    “‘property’ within the meaning of the due process clauses of the
    federal and state constitutions.”         Sandy Beach Defense Fund v.
    City Council of City and Cnty. of Honolulu, 
    70 Haw. 361
    , 376, 
    773 P.2d 250
    , 260 (1989) (citing Aguiar v. Hawai#i Housing Auth., 
    55 Haw. 478
    , 495, 
    522 P.2d 1255
    , 1266 (1974)).           “To have a property
    interest in a benefit, a person clearly must have more than an
    abstract need or desire for it.        He must have more than a
    11
    As Hawai#i Administrative Rules § 13-169-2 states, an IIFS is “a
    temporary instream flow standard of immediate applicability, adopted by the
    commission without the necessity of a public hearing, and terminating upon the
    establishment of an instream flow standard.” Haw. Admin. Rules § 13-169-2.
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    unilateral expectation of it.      He must, instead, have a
    legitimate claim of entitlement to it.”        Id. (quoting Bd. of
    Regents v. Roth, 
    408 U.S. 564
    , 577 (1972)).
    The court has had several opportunities to interpret
    due process property interests as affected by the water code.              In
    the case most similar to the current case, Waiâhole I, this court
    considered new and existing WUPA and IIFS for the Waiâhole ditch
    system, a water system that provides water from Oahu’s windward
    side to the island’s leeward side.       Waiâhole I, 94 Hawai#i at
    110, 
    9 P.3d at 422
    .    Waiâhole I contains extensive analysis and
    interpretation of the water code, and will be discussed in
    subsequent sections of this opinion.        Regarding jurisdiction,
    however, the opinion provides only brief analysis.          First, the
    court explained that it had jurisdiction over the appeal of the
    existing WUPA because both the HRS and the administrative rules
    required a hearing as part of the WUPA process.          Waiâhole I, 94
    Hawai#i at 119-20 n.15, 
    9 P.3d at
    431-32 n.15.         Second, with
    regard to the petitions to amend the IIFS and the new WUPA, the
    court stated that “constitutional due process mandates a hearing
    in both instances because of the individual instream and
    offstream ‘rights, duties, and privileges’ at stake.”           
    Id.
    (quoting Puna Geothermal, 77 Hawai#i at 68, 
    881 P.2d at 1214
    ).
    The parties dispute the import of the above-quoted
    sentence.    Hui/MTF argues that this “holding” from Waiâhole I
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    “made clear that [the court] had independent jurisdiction over
    IIFS petitions.”    The Commission, HC&S, and WWC argue that the
    Waiâhole I court’s citation to Puna Geothermal indicates that the
    court had jurisdiction over the IIFS in that case only because
    the appeal also challenged the Commission’s resolution of WUPA;
    they argue that because no party appealed from the WUPA in the
    present case, Waiâhole I is distinguishable and the court,
    therefore, lacks jurisdiction.
    First, a review of Puna Geothermal.         There, the court
    considered whether it had jurisdiction over an appeal following
    the Department of Health’s (“DOH”) resolution of Puna Geothermal
    Ventures’s (“PGV”) applications for permits to build a well field
    and a power plant.     77 Hawai#i at 66, 
    881 P.2d at 1212
    .        The DOH
    held two “public informational hearings,” denied PGV’s request
    for a CCH, and ultimately granted PGV’s permit applications.               
    Id.
    When the Pele Defense Fund (“PDF”) sought judicial review of the
    DOH’s actions, PGV filed a motion to dismiss, arguing that the
    court lacked jurisdiction because there had been no contested
    case.   
    Id.
       On appeal, this court concluded that PDF had a
    constitutional due process right to a hearing before the DOH.
    Id. at 68, 
    881 P.2d at 1214
    .       The court held,
    as a matter of constitutional due process, an agency hearing
    is also required where the issuance of a permit implicating
    an applicant’s property rights adversely affects the
    constitutionally protected rights of other interested
    persons who have followed the agency’s rules governing
    participation in contested cases.
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    Id.
     (emphasis added).     The court concluded that the hearings in
    that case satisfied the “contested case” requirement for purposes
    of judicial review under HRS § 91-14.        Id. at 71, 
    881 P.2d at 1217
    .
    The Commission, WWC, and HC&S argue that the Waiâhole I
    court’s citation to Puna Geothermal indicates that the court
    exercised jurisdiction over the appeal of the IIFS only because
    the parties also appealed the Commission’s resolution of permit
    applications.   Hui/MTF reads Waiâhole I as holding that the court
    has independent jurisdiction to review IIFS.         The court concludes
    that the jurisdictional language from Waiâhole I is susceptible
    to both interpretations.     However, the court’s due process cases
    indicate that the court has jurisdiction to hear Hui/MTF’s appeal
    because the IIFS, independent of any WUPA, affects property
    interests of Hui/MTF’s members.
    John Duey, President of Hui O Nâ Wai #Ehâ, testified
    that the Hui’s members “live, work, and play in the areas of Nâ
    Wai #Ehâ,” and that the Hui is “committed to restoring these
    streams’ natural and cultural values and protecting Maui’s
    quality of life for present and future generations.”           #Îao Stream
    runs through the property owned by Duey and his wife, Marie
    Ho#oululâhui Lindsey Duey.     Marie is native Hawaiian; she gave
    their property her Hawaiian name: Ho#oululâhui.         Ho#oululâhui
    28
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    contains at least seventeen ancient lo#i12, but the Dueys
    currently cultivate only two small lo#i with stream water, which
    they take directly from, and return to, #Îao Stream.            John
    testified that he would like to restore the remaining lo#i on his
    land, but that “[t]he only limiting factor is the availability of
    water.”
    Ron Sturtz, President of the Board of Directors of Maui
    Tomorrow Foundation, Inc., submitted a letter stating that the
    organization’s supporters engage in traditional and customary
    gathering practices.      One such supporter, Roselle Keli#ihonipua
    Bailey, a kuma hula and native Hawaiian practitioner, submitted
    written testimony explaining the gathering practices she would
    like to practice in #Îao Stream and its nearshore waters, and
    testifying that the lack of flowing water makes her practices
    impossible.
    Kalo13 farmer and Hui O Nâ Wai #Ehâ member Hôkûao
    Pellegrino testified that his 2.175-acre farm, Noho#ana, contains
    several restored ancient lo#i, ready to be cultivated.             The
    12
    “Lo#i” is defined as an “[i]rrigated terrace, especially for taro,
    but also for rice; paddy.” Pukui & Elbert at 209.
    13
    “Kalo” is the Hawaiian word for taro. Pukui & Elbert at 123. “In
    Hawai#i, taro has been the staple from earliest times to the present, and here
    its culture developed greatly, including more than 300 forms. All parts of
    the plant are eaten, its starchy root principally as poi, and its leaves as
    lû#au.” 
    Id.
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    Noho#ana lo#i are irrigated via a traditional #auwai14 that diverts
    water from Waikapû Stream, and the water that leaves the lo#i
    returns to the Stream.       Pellegrino testified that he is only able
    to cultivate two of his lo#i at a time because of insufficient
    water in Waikapû Stream.
    The interests of the Dueys, Roselle Bailey, and Hôkûao
    Pellegrino are selected examples of testimony presented to the
    Commission, but dozens of others testified about their similar
    interests.    Indeed, in its FOF/COL D&O, the Commission found that
    “Cultural experts and community witnesses provided uncontroverted
    testimony regarding limitations on Native Hawaiians’ ability to
    exercise traditional and customary rights and practices in the
    greater Nâ Wai #Ehâ area due to the lack of freshwater flowing in
    Nâ Wai #Ehâ’s streams and into the nearshore marine waters.”
    The question before the court today, a question we answer in the
    affirmative15, is whether these interests constitute “property
    interests” for the purpose of due process analysis.
    The court has explained that a party has a property
    interest in the subject of litigation for purposes of due process
    analysis if the party has “more than an abstract need or desire
    14
    “#Auwai” means “ditch or canal.”   Pukui & Elbert at 33.
    15
    Hui/MTF also has standing to pursue this appeal, having
    demonstrated that “their interests were injured” and that they were “involved
    in the administrative proceeding that culminated in the unfavorable decision.”
    Puna Geothermal, 77 Hawai#i at 69, 
    881 P.2d at 1215
     (quoting Mahuiki v.
    Planning Comm’n, 
    65 Haw. 506
    , 514-15, 
    654 P.2d 874
    , 879-80 (1982)).
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    for it.   He must have more than a unilateral expectation of it.
    He must, instead, have a legitimate claim of entitlement to it.”
    Sandy Beach Defense Fund, 70 Haw. at 376, 
    773 P.2d at 260
    .                The
    court has cited with approval the U.S. Supreme Court’s analysis
    that:
    Property interests, of course, are not created by the
    Constitution. Rather they are created and their dimensions
    are defined by existing rules or understandings that stem
    from an independent source such as state law—rules or
    understandings that secure certain benefits and that support
    claims of entitlement to those benefits.
    Int’l Broth. of Painters and Allied Trades v. Befitel, 104
    Hawai#i 275, 283, 
    88 P.3d 647
    , 655 (2004) (quoting Bd. of Regents
    v. Roth, 
    408 U.S. 564
    , 576 (1972)).        See also Aguiar v. Hawai#i
    Housing Auth., 
    55 Haw. 478
    , 496, 
    522 P.2d 1255
    , 1267 (1974)
    (citing federal authority to support the conclusion that “a
    benefit which one is entitled to receive by statute constitutes a
    constitutionally-protected property interest”).
    The interests asserted by Hui/MTF have a statutory basis in the
    water code.   As stated in HRS § 174C-101,
    (c) Traditional and customary rights of ahupua#a tenants who
    are descendants of native Hawaiians who inhabited the
    Hawaiian Islands prior to 1778 shall not be abridged or
    denied by this chapter. Such traditional and customary
    rights shall include, but not be limited to, the cultivation
    or propagation of taro on one's own kuleana and the
    gathering of hihiwai, opae, o‘opu, limu, thatch, ti leaf,
    aho cord, and medicinal plants for subsistence, cultural,
    and religious purposes.
    (d) The appurtenant water rights of kuleana and taro lands,
    along with those traditional and customary rights assured in
    this section, shall not be diminished or extinguished by a
    failure to apply for or to receive a permit under this
    chapter.
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    HRS §§ 174C-101(c) and (d) (1993).       HRS § 174C-63 is yet another
    section of the water code that entitles native Hawaiian farmers
    to their water; it states: “Appurtenant rights are preserved.
    Nothing in this part shall be construed to deny the exercise of
    an appurtenant right by the holder thereof at any time.”            HRS §
    174C-63 (1993).
    HC&S argues that these interests do not rise to the
    level of property for due process purposes, citing Sandy Beach
    Defense Fund, for support that native Hawaiian practices are
    similar to “aesthetic and environmental interests” which the
    court has held to be insufficient to establish a property
    interest.    In that case, the City and County of Honolulu issued
    Special Management Area (“SMA”) use permits for a proposed
    development.    70 Haw. at 364, 
    773 P.2d at 253
    .        Area residents
    and community groups alleged that the County was required to hold
    a CCH before issuing the permits, expressing concerns “regarding
    the development’s impact on coastal views, preservation of open
    space, traffic, potential flooding, and sewage treatment.”            
    Id.
    The supreme court held that the community groups were not
    entitled to a CCH because their “aesthetic and environmental”
    claims did not constitute “legitimate claims of entitlement.”
    
    Id. at 376
    , 
    773 P.2d at 260
    .      The court also noted that the
    community groups did not cite authorities to support their
    argument, and that none of the area residents owned property
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    contiguous to the development.      
    Id. at 377
    , 
    773 P.2d at 261
    .
    Sandy Beach is readily distinguishable.        First, the affected
    parties before the court today own or reside on land in the area
    of Nâ Wai #Ehâ, and rely upon that water to exercise traditional
    and customary rights, including kalo farming.         Second, as cited
    above, there is statutory authority found throughout the water
    code to support their entitlement to water for kalo farming.
    HC&S also argues that downstream kalo farmers cannot
    assert property interests to more water than they currently use
    because it “would be a grave departure from the principle that
    ‘the range of interests protected by procedural due process is
    not infinite.’” (quoting Int’l Bd. of Painters & Allied Trades v.
    Befitel, 104 Hawai#i at 283, 88 P.3d at 655).         This argument is
    rejected for several reasons.      First, as both Hui/MTF and OHA
    argue, the fact that HC&S and WWC have historically deprived
    downstream users of water does not negate those downstream users’
    interest in the water.     Second, neither statute quoted above
    provides for abandonment of appurtenant rights; in fact, the text
    specifically protects against abandonment by stating that
    appurtenant rights will “not be diminished or extinguished by a
    failure to apply for or to receive a permit.”         HRS § 174C-101(d).
    Furthermore, as the court explained in Waiâhole I, “The
    constitution and Code, [. . .] do not differentiate among
    ‘protecting,’ ‘enhancing,’ and ‘restoring’ public instream values
    33
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    [like native Hawaiian rights], or between preventing and undoing
    ‘harm’ thereto.”    94 Hawai#i at 150, 
    9 P.3d at 462
    .
    The court also disagrees with the Commission’s, WWC’s,
    and HC&S’s argument that setting the IIFS in this case did not
    determine individual water rights.       When the Commission issued a
    D&O retaining the existing IIFS for #Îao and Waikapû Streams, it
    necessarily affected the Dueys’ and Pellegrino’s access to water
    because it endorsed the upstream diversions that remove water
    from #Îao and Waikapû Streams, apparently finding that the
    “importance” of those diversions outweighed the importance of
    downstream uses.    HRS § 174C-71(2)(D).
    Though the conclusions above are sufficient to support
    today’s holding, the analysis of one more case merits
    consideration.   In Ko#olau Agr. Co., Ltd. v. Comm’n On Water Use
    Mgmt. (“Ko#olau Ag”), an agriculture company unsuccessfully
    sought review of the Commission’s designation of several O#ahu
    aquifers as Water Management Areas (“WMA”).         83 Hawai#i 484, 486,
    
    927 P.2d 1367
    , 1369 (1996).      The court explained that the company
    did not have a property interest in whether the aquifers in
    question received the WMA designation.        Id. at 493, 
    927 P.2d at 1376
    .   In so concluding, the court drew a distinction between WMA
    designations, which do not require a hearing, and WUPA decisions,
    which do require hearings.      As the court explained, this
    disparity in procedure is “eminently logical given the difference
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    between the issues presented for decision.”          
    Id.
       First, the
    court noted the difference in analysis required before the two
    resolutions.    When considering a WMA designation, the Commission
    must determine whether “the water resources in the area may be
    threatened by existing or proposed withdrawals or diversions of
    water.”    
    Id.
     (quoting HRS § 174C-41(a)).      Contrast a WUPA, where
    the Commission’s analysis is much more robust; the Commission
    must consider several factors when granting a WUPA, including
    whether the water use is “a reasonable-beneficial use as defined
    in [the Code];” whether the use is “consistent with the public
    interest;” and whether it is consistent with governmental land
    use plans.    Id. at 492, 
    927 P.2d at 1375
     (quoting HRS § 174C-48).
    Second, the court considered the necessity of judicial review.
    The court recognized that “the consequences of an erroneous [WMA]
    designation decision by the Commission do not indicate a need for
    judicial review because the rights of individual water users are
    fully protected in the permitting process.”          Id. at 493, 
    927 P.2d at 1376
    .    And third, the court noted that WMA designations do not
    affect the interests of any potential water users; the impact of
    such a designation is only that the user’s water source is
    subject to the Commission’s regulation, which does not, in and of
    itself, affect the user’s water rights.        
    Id.
        Contrast a WUPA,
    where the outcome is a permit directly specifying a user’s rights
    to water.    
    Id.
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    All parties cite Ko#olau Ag for assistance on the
    question of whether there is a property interest at stake in this
    case.   The Commission, HC&S, and WWC argue that an IIFS
    determination is similar to designating a WMA because neither
    directly determines property rights.        The court concludes that
    each of the factors listed above counsel in favor of judicial
    review in this case.     First, the analysis the Commission must
    undertake in setting an IIFS is complicated.          The statute
    specifies the factors the Commission must consider:
    In considering a petition to adopt an interim instream flow
    standard, the commission shall weigh the importance of the
    present or potential instream values with the importance of
    the present or potential uses of water for noninstream
    purposes, including the economic impact of restricting such
    uses.
    HRS § 174C-71(2)(D).     As the voluminous record in this case
    readily establishes, each of these factors is complex and
    involves significant and thorough analysis and factfinding.
    Unlike establishing a WMA, the analysis supporting a
    determination of an IIFS requires more than a yes/no decision,
    but rather requires the Commission to weigh serious and
    significant concerns, including: “the need to protect and
    conserve beneficial instream uses of water,” “the importance of
    the present or potential instream values,” “the importance of the
    present or potential uses of water for noninstream purposes,” and
    “the economic impact of restricting such uses.”          HRS §
    174C-71(2)(C) and (D).     Indeed, in Waiâhole I, the Commission
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    itself advocated for due process rights in proceedings to
    determine IIFS.   One of the Commission’s own Orders, cited in the
    court’s opinion with approval, states
    A petition to modify instream flows at ... specific
    locations is a fact-intensive, individualized determination
    at each site that may directly affect downstream and
    off-stream interests.... [I]ndividual claims may need to be
    examined. The site-specific inquiry required in this case is
    not compatible with rule making, but with a method which
    provides the due process procedures necessary to assess
    individual interests.
    94 Hawai#i at 152, 
    9 P.3d at 464
    .
    Second, the ramifications of an erroneous IIFS could
    offend the public trust, and is simply too important to deprive
    parties of due process and judicial review.         As the court stated
    in Waiâhole I, “[t]he public trust . . . is a state
    constitutional doctrine.     As with other state constitutional
    guarantees, the ultimate authority to interpret and defend the
    public trust in Hawai#i rests with the courts of this state.”              94
    Hawai#i at 143, 
    9 P.3d at 455
    .      The courts serve an important
    function with regard to the water code; as the court noted in
    Waiâhole I, “[t]he check and balance of judicial review provides
    a level of protection against improvident dissipation of an
    irreplaceable res.”    
    Id.
     (quoting Arizona Cent. for Law in Pub.
    Interest v. Hassell, 
    837 P.2d 158
    , 168–69 (Ariz. Ct. App. 1991),
    review dismissed, 
    837 P.2d 158
     (Ariz. 1992) (brackets and
    citation omitted)).
    Finally, in Ko#olau Ag, the court specified that there
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    was little necessity for judicial review because the permitting
    process would adequately protect individual rights.           83 Hawai#i
    at 493, 
    927 P.2d at 1376
    .     This protection does not exist in
    today’s case for several reasons.        First, as the Commission
    itself acknowledges, setting an IIFS is a final action and it
    would be “inappropriate for the Commission to reevaluate the IIFS
    during the upcoming surface water use permit proceedings.”            This
    argument indicates that downstream users cannot ask the
    Commission to raise the IIFS to a level that would accommodate a
    permit to fulfill their kuleana needs.        Second, as the court
    noted in Waiâhole I, the water code envisions that “Once the
    Commission translates the public interest in instream flows into
    ‘a certain and manageable quantity[, t]he reference to
    consistency with the public interest in the definition of
    reasonable beneficial use likewise becomes a reference to that
    quantity.’”   94 Hawai#i at 149, 
    9 P.3d at 461
     (quoting Douglas W.
    MacDougal, Private Hopes and Public Values in the “Reasonable
    Beneficial Use” of Hawai#i’s Water: Is Balance Possible?, 
    18 U. Haw. L. Rev. 1
    , 62 (1996)).      In short, the IIFS matter.       They
    have both immediate and lasting impacts on individual water
    users.   They are also an opportunity for the Commission to
    consider the needs of our state’s water systems.          “Under the
    [Water] Code, [. . .] instream flow standards serve as the
    primary mechanism by which the Commission is to discharge its
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    duty to protect and promote the entire range of public trust
    purposes dependent upon instream flows.”          94 Hawai#i at 148, 
    9 P.3d at 460
    .     The court therefore holds that Hui/MTF had a due
    process right to a hearing, and therefore has a right to judicial
    review, in this case.
    V.   ANALYSIS OF POINTS OF ERROR
    A.    This Court Must Dismiss MDWS’s Cross-Appeal, As It Seeks
    Resolution of an Abstract Proposition of Law.
    MDWS filed a cross-appeal in this case seeking
    “clarification” of several COL, in which the Commission
    articulated that it established the IIFS prior to considering
    noninstream uses, including MDWS’s diversions for the public
    water supply.     MDWS contends that Waiâhole I established a
    “higher status” for public trust uses as compared to commercial
    noninstream uses, and that municipal use, though a noninstream
    use, should be afforded higher status and preferential
    consideration as a public trust use.
    Hui/MTF filed an answering brief to MDWS’s opening
    brief; OHA joined the brief.        In its answering brief, Hui/MTF
    argues that MDWS’s point of error is not reviewable by the court
    because MDWS seeks clarification of language in the Commission’s
    D&O but does not argue that the Commission’s alleged error
    affected MDWS’s rights or interests.          Hui/MTF reasons that
    because MDWS sought and was issued water use permits in the
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    amounts requested, any treatment of their point of error would be
    an “advisory opinion.”     Hui/MTF accordingly requests that the
    court dismiss MDWS’s cross-appeal.
    Hui/MTF’s argument is well-taken.         This court has
    recently affirmed its practice not to issue “advisory opinions on
    abstract propositions of law.”      Kemp v. State of Hawai#i Child
    Support Enforcement Agency, 111 Hawai#i 367, 385, 
    141 P.3d 1014
    ,
    1032 (2006)) (citing Kona Old Hawaiian Trails Group v. Lyman, 
    69 Haw. 81
    , 87, 
    734 P.2d 161
    , 165 (1987)).        This is a longstanding
    value of the court.
    The duty of this court, as of every other judicial tribunal,
    is to decide actual controversies by a judgment which can be
    carried into effect, and not to give opinions upon moot
    questions or abstract propositions, or to declare principles
    or rules of law which cannot affect the matter in issue in
    the case before it.
    Wong v. Bd. of Regents, 
    62 Haw. 391
    , 394-95, 
    616 P.2d 201
    , 204
    (1980) (citing Anderson v. Rawley Co., 
    27 Haw. 150
    , 152 (1923))
    (further citations omitted).
    MDWS’s point of error seeks resolution of an abstract
    proposition because any possible resolution of MDWS’s point of
    error would not affect MDWS’s right—or any other party’s right—to
    the water use permits issued by the Commission.          MDWS sought
    permits for 1.042 mgd for the Kepaniwai Well (Well No. 5332-05),
    and 1.359 mgd for the #Îao Tunnel (Well No. 5332-02).          The
    Commission found that MDWS’s applications met all the permitting
    criteria and awarded the permits in full.         Analysis of MDWS’s
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    point of error would not affect this determination because MDWS’s
    request was granted, even without the requested treatment as a
    public trust use.      MDWS’s cross-appeal is therefore dismissed.
    B.    The Commission Failed To Enter Findings of Fact and
    Conclusions of Law Regarding The Effect Of Its Amended IIFS
    On Traditional And Customary Native Hawaiian Practices.
    OHA and Hui/MTF argue that the IIFS established by the
    Commission did not protect traditional and customary native
    Hawaiian rights to the extent feasible.          More specifically, both
    parties contend that the Commission erred in failing to
    articulate FOF and COL regarding the impact of its decision on
    traditional and customary native Hawaiian rights.            OHA also
    argues that the Commission failed to weigh traditional and
    customary rights when it balanced instream values and noninstream
    uses.
    The Commission articulated a general conclusion of law
    relevant to this point of error:
    19. In addition to appurtenant rights when practiced for
    subsistence, cultural and religious purposes, traditional
    and customary rights include, but are not limited to,
    kuleana water for domestic purposes, kalo cultivation, and
    other irrigation purposes, and the gathering of hihiwai,
    opae, o#opu, limu, thatch, ti leaf, aho cord, and medicinal
    plants for subsistence, cultural, and religious purposes.
    COL 19 is, in large part, a quotation from HRS § 174C-101(c), the
    provision in the water code protecting native Hawaiian rights; it
    provides an illustrative list of the activities that can be
    protected under the water code.         During the hearing, Hui/MTF and
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    OHA presented several witnesses who testified about native
    Hawaiian practices specific to Nâ Wai #Ehâ, and the Commission
    found several facts on the subject.        First, as for historical
    practices, the Commission found several facts indicating a
    distinct connection between Nâ Wai #Ehâ and Hawaiian history and
    culture.   The Commission found:
    34. Due to the profusion of fresh-flowing water in ancient
    times, Nâ Wai #Ehâ supported one of the largest populations
    and was considered the most abundant area on Maui; it also
    figured centrally in Hawaiian history and culture in
    general.
    35. The abundance of water in Nâ Wai #Ehâ enabled extensive
    lo#i kalo (wetland kalo) complexes, including varieties
    favored for poi-making such as “throat-moistening lehua
    poi.”
    [. . .]
    40. In addition to extensive agricultural production,
    traditional and customary practices thrived in Nâ Wai #Ehâ,
    including the gathering of upland resources, such as thatch
    and ti, and protein sources from the streams, including
    #o#opu, #ôpae, and hihiwai.
    [. . .]
    43. The waters of Nâ Wai #Ehâ were renowned for the
    traditional and customary practice of hiding the piko, or
    the naval cord of newborn babies. “[T]he spring Eleile
    contained an underwater cave where the people of the area
    would hide the piko (umbilical cords) of their babies after
    birth. . . . The location of where one buries or hides the
    piko is a traditional custom that represents Native Hawaiian
    cultural beliefs about an individual’s connection to the
    land.”
    44. Upper #Îao Valley contained the royal residences of
    chiefs in both life and the afterlife. In a secret
    underwater cave, Native Hawaiians hid the bones of “all the
    ruling chiefs who had mana and strength, and the kupua, and
    all those attached to the ruling chiefs who were famous for
    their marvelous achievements. There were several hundred in
    all who were buried there.” Thus, the burial of sacred
    chiefs required a deep freshwater body to ensure the utmost
    protection of their bones.
    45. Nâ Wai #Ehâ is home to several important heiau. Of
    particular significance are Haleki#i and Pihana Heiau,
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    located between Waiehu and #Îao Streams. These heiau were
    re-consecrated in 1776 as an offering before the famous
    battle between Hawai#i and Maui. It is said that
    Kalanikaukooluaole, a high chiefess and daughter of
    Kamehamehanui, bathed in the stream water near the heiau,
    before she entered the heiau.
    [. . .]
    54. The spiritual practice of hi#uwai, also known as kapu
    kai, often occurred around the time of makahiki, when
    individuals “would go into the rivers or into the ocean in
    order to do a cleansing for the new year[.]” This type of
    cleansing, which required immersion in the water, was also
    conducted “before you start or end certain ceremonies[.]”
    For ceremonies dedicated to Kâne, “having a hi#uwai in a
    stream magnifies the mana[.]”
    The Commission heard testimony explaining that native
    Hawaiian practices still continue in Nâ Wai #Ehâ:
    51. Despite significant challenges, some Native Hawaiian
    practitioners in Nâ Wai #Ehâ continue to exercise
    traditional and customary rights and practices, including
    “gathering stream life such as hihiwai, #ôpae, #o#opu, and
    limu for subsistence and medicinal purposes,” as well as
    “cultivating taro for religious and ceremonial uses,
    gathering materials for hula, lua (ancient Hawaiian martial
    arts), and art forms.”
    [. . .]
    53. Kumu hula Akoni Akana gathers materials such as hau,
    palapalai, la#î, and laua#e from Waihe#e and Waiehu for hula
    ceremonies and performances. “As part of the protocol for
    gathering these items, we always soak the leaves we gather
    in the stream flow nearby. This practice necessitates a
    flowing stream.”
    [. . .]
    55. Other practitioners would like to expand the scope of
    their traditional and customary practices and plan to do so
    if water is returned to the streams. For example, Hôkûlani
    Holt-Padilla testified that “[m]any families seek to
    reestablish the tradition of growing kalo” in Nâ Wai #Ehâ.
    The Commission also found facts to explain the
    connection between current traditional and customary practices
    and streamflow levels:
    49.   Cultural experts and community witnesses provided
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    uncontroverted testimony regarding limitations    on Native
    Hawaiians’ ability to exercise traditional and    customary
    rights and practices in the greater Nâ Wai #Ehâ   area due to
    the lack of freshwater flowing in Nâ Wai #Ehâ’s   streams and
    into the nearshore marine waters.
    50. “#O#opu must once have been plentiful in Nâ Wai #Ehâ
    streams; the wind in Waihe#e is called ka makani kili#o#opu,
    which means the wind that brings the faint odors of the
    #o#opu.” Today, however, “[i]t is very difficult to find
    #ôpae, hihiwai, and #o#opu in the streams of Nâ Wai #Ehâ,
    large portions of which are frequently dry.”
    [. . .]
    57. According to testimony, “Nâ Wai #Ehâ continues to hold
    the potential to once again support enhanced traditional and
    customary rights and practices if sufficient water is
    restored.” Restoring streamflow to Nâ Wai #Ehâ “would
    enormously benefit” Native Hawaiians and other communities
    who seek to reconnect with their culture and live a self-
    sustaining lifestyle, and more people would be able to
    engage in traditional and customary practices with more
    water.
    58. Testimony contended that “Restoration of mauka to makai
    flow to the streams is critical to the perpetuation and
    practice of Hawaiian culture in Nâ Wai #Ehâ.” “If we are not
    able to maintain our connection to the land and water and
    teach future generations our cultural traditions, we lose
    who we are as a people.”
    59. According to testimony, “The return of the waters of Nâ
    Wai #Ehâ to levels that can sustain the rights of native
    Hawaiians and Hawaiians to practice their culture will
    result in the betterment of the conditions of native
    Hawaiians and Hawaiians by restoring spiritual well-being
    and a state of ‘pono’ (goodness, righteousness, balance) to
    the people and communities of Nâ Wai #Ehâ.”
    60. Testimony contended that cold, free-flowing water is
    essential for kalo cultivation, which in turn is integral to
    the well-being, sustenance, and cultural and religious
    practices of native Hawaiians and Hawaiians. Kalo
    cultivation provides not only a source of food, but also
    spiritual sustenance, promotes community awareness and a
    connection to the land, and supports physical fitness and
    mental well-being.
    OHA and Hui/MTF both argue that the Commission had a
    duty to make specific findings of fact and conclusions of law
    with regard to the effect of its D&O on traditional and customary
    native Hawaiian practices.      Their argument is grounded in Ka
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    Pa#akai O Ka #Aina v. Land Use Comm’n, 94 Hawai#i 31, 
    7 P.3d 1068
    (2000).
    In Ka Pa#akai O Ka #Aina, native Hawaiian groups
    appealed the State Land Use Commission’s (“LUC”) grant of a land
    developer’s petition to reclassify land in a conservation
    district to an urban district.      94 Hawai#i at 33, 
    7 P.3d at 1070
    .
    The LUC held hearings on the petition, and reached several
    findings of fact and conclusions of law regarding native Hawaiian
    practices.   Id. at 36-37, 
    7 P.3d at 1073-74
    .        The LUC determined
    that the developer would develop and implement a Resource
    Management Plan (“RMP”) to coordinate coastal access for the
    purpose of traditional and customary practices; the LUC
    specifically found that one family gathered salt in the area, and
    that the shoreline is used for fishing, gathering limu, #opihi,
    and other resources.    Id. at 37, 
    7 P.3d at 1074
    .        The LUC
    mandated that the RMP will preserve these practices,
    archaeological sites and the coastal trail, and required the
    developer to preserve and protect native Hawaiian rights.            Id. at
    38, 39, 
    7 P.3d at 1075, 1076
    .      On appeal, this court recognized
    that Article XII, section 7 of the state constitution “places an
    affirmative duty on the State and its agencies to preserve and
    protect traditional and customary native Hawaiian rights,” while
    giving the State and its agencies the power to discharge this
    duty.   Id. at 45, 
    7 P.3d at 1082
    .       The court then provided an
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    “analytical framework” to guide the State in its decisions
    affecting native Hawaiian rights, specifying that the agency
    must, at a minimum, articulate:
    (1) the identity and scope of “valued cultural, historical,
    or natural resources” in the petition area, including the
    extent to which traditional and customary native Hawaiian
    rights are exercised in the petition area; (2) the extent to
    which those resources-including traditional and customary
    native Hawaiian rights-will be affected or impaired by the
    proposed action; and (3) the feasible action, if any, to be
    taken by the LUC to reasonably protect native Hawaiian
    rights if they are found to exist.
    Id. at 46-47, 
    7 P.3d at 1083-84
     (internal footnotes omitted).
    The court held that the LUC failed to satisfy those criteria for
    several reasons: (1) the LUC did not enter definitive findings
    regarding the extent of the native Hawaiian practices, but rather
    delegated the determination to the developer; (2) the LUC did not
    enter findings about the practices undertaken outside the RMP,
    despite evidence that the area outside the RMP could require
    protection; (3) “the LUC made no specific findings or conclusions
    regarding the effects on or the impairment of any Article XII,
    section 7 uses, or the feasibility of the protection of those
    uses.”   Id. at 48-49, 
    7 P.3d at 1085-86
     (emphasis in original).
    As the court explained, “the promise of preserving and protecting
    customary and traditional rights would be illusory absent
    findings on the extent of their exercise, their impairment, and
    the feasibility of their protection.”        Id. at 50, 
    7 P.3d at 1087
    .
    Hui/MTF and OHA argue that the Commission’s FOF/COL D&O
    do not satisfy the analytical framework of Ka Pa#akai O Ka #Aina.
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    They cite the Commission’s own findings that the lack of
    freshwater in Nâ Wai #Ehâ limits the native Hawaiian practices of
    kalo cultivation and gathering, and argue that the Commission did
    not fulfill its duty to protect native Hawaiian rights because
    “nothing in the Decision indicates that the majority even
    considered the feasibility of protecting those traditional and
    customary rights.”
    The court concludes that Hui/MTF and OHA are correct;
    the Commission’s FOF/COL D&O, while very thorough in several
    respects, including its documentation of the area’s native
    Hawaiian practices, lacks findings or conclusions articulating
    the effect of the amended IIFS on the native Hawaiian practices
    of Nâ Wai #Ehâ.   It also lacks findings or conclusions explaining
    the feasibility of protecting the practices.         This is
    particularly apparent with regard to kalo cultivation,
    considering the Commission’s decision not to restore any
    streamflow to #Îao and Waikapû Streams.        In its FOF/COL D&O, the
    Commission identified seventeen kuleana ditch/pipe systems, and
    divided those seventeen into two categories: the fourteen that
    are connected to one of the primary distribution systems (and
    thus rely on diverted water for their kalo cultivation), and the
    three that divert water directly from a stream (and thus rely on
    sufficient instream flows from which to pull their water).            While
    the Commission’s analysis considered the needs of the former
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    category of kuleana users, there was no mention of the kuleana
    users who access their water directly from the streams.              This is
    particularly troublesome for the users who take from two of the
    ditches, described in the record as the Pellegrino and Duey
    Kuleana Ditches, which draw water directly from Waikapû and #Îao
    Streams, respectively.       The users on those Ditches testified that
    their water is insufficient, and urged the Commission to amend
    upward the IIFS for their streams so they could irrigate their
    lo#i kalo.    The Commission’s FOF/COL D&O justifies its decision
    not to restrict diversions from Waikapû and #Îao Streams due to
    the streams’ lack of potential to support certain native species,
    described as amphidromous.16        The Commission does not state the
    effect of this decision, which is to deny the Pellegrino and Duey
    Ditch users the water they need to cultivate the lo#i kalo on
    their property; furthermore, the Commission did not articulate
    whether it would be feasible to return flow sufficient to support
    the kuleana.
    In addition to neglecting this portion of the kalo
    cultivation analysis, the FOF/COL D&O does not provide any
    analysis of the decision’s effect on gathering rights.              HC&S
    argues that the Commission’s FOF/COL were adequate on this point,
    reasoning that “if instream fauna populations increase as a
    16
    A full discussion of this analysis follows in Section V.C.1.
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    result of the amended IIFS as [the Commission] anticipates they
    will, that would support gathering practices.”          This argument
    fails for two main reasons.      First, the FOF/COL do not satisfy
    the analytical framework articulated in Ka Pa#akai O Ka #Aina.             It
    appears as though the first step of analysis, identification of
    the scope of traditional and customary native Hawaiian rights, is
    satisfied by the above-quoted FOF regarding gathering rights,
    which identify the several items gathered from Nâ Wai #Ehâ.
    However, subsequent steps of the analysis require the
    administrative agency to articulate “the extent to which those
    resources [. . .] will be affected or impaired by the proposed
    action,” and then to specify what feasible action can be taken to
    protect native Hawaiian rights.       Ka Pa#akai O Ka #Aina, 94 Hawai#i
    at 47, 
    7 P.3d at 1084
    .     The FOF/COL do not contain any
    information on these two steps of analysis.         Furthermore, even if
    the court accepted HC&S’s post hoc explanation to be adequate,
    this would only resolve rights to gather amphidromous species,
    but the Commission concluded that gathering rights in Nâ Wai #Ehâ
    also encompassed several other species.        The Commission’s
    analysis does not examine whether the amended IIFS impact these
    gathering rights, or whether any negative impact may be avoided.
    Having concluded that the Commission did not discharge
    its duty with regard to the feasibility of protecting native
    Hawaiian rights, the court must vacate the Commission’s FOF/COL
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    D&O and remand to the Commission for further consideration of the
    effect the IIFS will have on native Hawaiian practices, as well
    as the feasibility of protecting the practices.            Should the
    Commission determine that the amended IIFS will negatively impact
    protected native Hawaiian practices and that protection of those
    practices is feasible, the Commission may enter amended IIFS to
    reflect that protection.
    C.    The Commission’s D&O Does Not Adequately Justify Its
    Decision Not To Restore Streamflow To The #Îao And Waikapû
    Streams.
    Hui/MTF challenges the Commission’s failure to restore
    flow to the #Îao and Waikapû Streams.         Hui/MTF argues that such
    an action was not supported by the record and disregards all
    instream uses other than sustaining amphidromous species.
    Hui/MTF further contends that the Commission did not properly
    weigh the competing interests in this case, and that the
    Commission arbitrarily misused the USGS’s temporary flow release
    figures.
    1.    The Commission’s Analysis Regarding Instream Use Is
    Incomplete.
    The Commission explained its reasoning in the FOF/COL
    D&O section titled “The Commission’s Analysis and Conclusions.”
    That section of analysis shows a clear emphasis placed on the
    potential to restore amphidromous species in the streams.              This
    was a main area of controversy in the hearing; the parties
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    presented the Commission with several expert witnesses, all
    promoting different opinions on the issue.
    The term “amphidromous” describes species of fish that
    undergo regular, obligatory migration between fresh water and the
    sea at some stage in their life cycle other than the breeding
    period.   Native Hawaiian amphidromous species exhibit “freshwater
    amphidromy,” where spawning takes place in fresh water, and the
    newly hatched larvae are swept into the sea by stream currents.
    While in the sea, the larvae undergo development as zooplankton
    before returning to fresh water to grow to maturity.           The
    Commission found that these species suffer in Nâ Wai #Ehâ due to
    the disruption of natural flow caused by the offstream water
    diversions; the diversions degrade or destroy habitat, diminish
    food sources, diminish larval drift by capturing eggs and larvae,
    and impair flows necessary to transport larvae to the ocean.
    The Commission also found that discharge of sufficient duration
    and volume is necessary to attract and accommodate upstream
    migration of post-larval fish, mollusks, and crustaceans; there
    is a direct correlation between stream volume and recruitment,
    such that increased streamflow correlates with increased
    recruitment at the stream mouth.
    Dr. Mark Eric Benbow, an Assistant Professor at
    Michigan State University, testified on behalf of Hui/MTF as an
    expert in aquatic biology, ecology, and the Central Maui streams.
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    Dr. Benbow testified that the amphidromous life cycle requires
    continuous mauka-to-makai flow, though he acknowledged that he
    did not know the precise volume and duration necessary to sustain
    the species.    Dr. Benbow reached his opinions after conducting
    multi-year studies of Central Maui streams in which he found that
    the largest migrations of species occur in streams with minimal
    or no diversions, while the greatest reductions in recruitment
    during drought occur in diverted streams.          Dr. Benbow made two
    specific recommendations to the Commission: first, he recommended
    that the Commission require sufficient flow levels to increase
    the quantity and quality of habitat in order to have a
    functioning reproduction population of organisms; second, he
    recommended maintaining continuous mauka-to-makai flow in Nâ Wai
    #Ehâ.   Dr. Benbow testified that, without additional studies, he
    cannot recommend maintaining the streams at less than 75 percent
    of their median flow.      As the Commission found, however, Benbow’s
    75-percent figure was an “informed guess,” and the precise volume
    and duration of streamflow needed to sustain the life cycle of
    amphidromous organisms is not known.
    John Ford, Program Director and Office Lead for SWCA
    Environmental Consultants, testified on behalf of HC&S as an
    expert in aquatic biology, with specific emphasis on native
    species in Hawaiian streams.       Ford presented a different account
    of the importance of mauka-to-makai flow for amphidromous
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    species.   Ford distinguished “ecological connectivity” from
    “physical connectivity”; the former is the term for streamflows
    sufficient to allow the normal distribution of a species within
    an entire watershed, the latter is the term for continuous flow
    from a specific stream’s headwaters to its mouth.          Ford noted
    that there are naturally interrupted and intermittent streams in
    Hawai#i with amphidromous organism populations, and suggested
    that amphidromous species therefore may not require the
    continuous physical connectivity of each stream to sustain their
    population.
    HC&S retained Ford’s consulting company, SWCA, to
    evaluate amphidromous species in Nâ Wai #Ehâ.         In 2007 and early
    2008, SWCA performed a series of larval drift sampling to
    evaluate the reproduction of amphidromous species; this survey
    lasted one week in total, so the Commission found it was “just a
    snapshot” and could not support “broad extrapolations over time”
    or “to other streams.”     SWCA observed that Waihe#e River was the
    only stream in Nâ Wai #Ehâ with significant reproductive
    populations of native amphidromous species.         SWCA also observed
    amphidromous species in Waikapû and #Îao Streams, which may be
    evidence of ecological connectivity as those streams do not have
    physical connectivity to the sea except during prolonged intense
    flooding events.    There may be another explanation, however, as
    Dr. Benbow testified that he and Division of Aquatic Resources
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    biologist Skippy Hau have planted specimens of amphidromous
    species above the diversions of those streams.          SWCA concluded
    that ecological connectivity exists under diverted conditions in
    the Waihe#e River and Waiehu Stream.       Ford opined that the
    addition of flow to Waihe#e River and Waiehu Stream would be the
    most beneficial for increasing populations of native amphidromous
    species in Nâ Wai #Ehâ.    With regard to #Îao Stream, SWCA’s final
    conclusion was that the channelization “is the primary factor”
    impeding recruitment of amphidromous species.         SWCA also found no
    definitive evidence that Waikapû Stream ever flowed continuously
    from mauka to makai.
    The Commission’s Final FOF/COL D&O accepted Ford’s view
    of the streams with regard to amphidromous species.           As the
    Commission explained in its final analysis section, it
    concluded that the restorative potentials are highest for
    Waihe#e River and Waiehu Stream. #Îao Stream can be restored
    to enhance recruitment and increase stream life, but its
    reproductive potential is severely limited because of
    extensive channelization in the 2.5 miles immediately above
    its mouth. Waikapû Stream likely has minimal to no
    reproductive potential, because there probably was no
    pre-diversion continuous flow to the mouth, and even if
    there had been continuous flow, Kealia Pond and the delta
    below most likely inhibited recruitment.
    Hui/MTF argues that the Commission’s treatment of #Îao and
    Waikapû Streams is not supported by the record and disregards all
    instream uses other than amphidromous species.
    In setting the IIFS, the Commission was charged with
    weighing “present or potential instream values.”          HRS § 174C-
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    71(2)(D).    The water code contains a definition of instream uses,
    as well as an illustrative list of examples.             It provides:
    “Instream use” means beneficial uses of stream water for
    significant purposes which are located in the stream and
    which are achieved by leaving the water in the stream.
    Instream uses include, but are not limited to:
    (1) Maintenance of fish and wildlife habitats;
    (2) Outdoor recreational activities;
    (3) Maintenance of ecosystems such as estuaries,
    wetlands, and stream vegetation;
    (4) Aesthetic values such as waterfalls and scenic
    waterways;
    (5) Navigation;
    (6) Instream hydropower generation;
    (7) Maintenance of water quality;
    (8) The conveyance of irrigation and domestic water
    supplies to downstream points of diversion; and
    (9) The protection of traditional and customary
    Hawaiian rights.
    HRS § 174C-3.     As Hui/MTF shows, the record contains substantial
    evidence that establishing mauka-to-makai flow in all of the
    streams of Nâ Wai #Ehâ would support the public interest by
    fostering many of the statutorily-designated instream uses.
    Hui/MTF argues that the Commission focused on amphidromous
    species, a subset of parenthesis (1) in the statute, and
    disregarded evidence supporting the other instream uses.
    HC&S replies that the Commission is not required to
    restore streamflow, or even to establish an IIFS, for each
    stream.   The water code requires the Commission to establish IIFS
    in some instances; as the code provides, the Commission “shall”
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    set an IIFS “in order to protect the public interest”.           HRS §
    174C-71(2)(A).   Accordingly, in resolving the petition to amend
    the IIFS for Nâ Wai #Ehâ, the Commission was not precluded from
    retaining the existing IIFS in some or all of the streams, had it
    concluded that the public interest was sufficiently protected by
    the existing IIFS.
    In undertaking a close review of the Commission’s
    decision, it is apparent that the decision focuses on the flow
    standards as they relate to amphidromous species, and justifies
    the decision not to restore water to #Îao and Waikapû Streams due
    to the conclusion that those streams show limited “reproductive
    potential” for amphidromous species.        HC&S, the Commission, and
    WWC draw the court’s attention to the evidence in the record,
    especially the SWCA evaluation reviewed supra, that supports the
    Commission’s conclusion.     However, Hui/MTF’s point of error does
    not merely contend that the Commission’s decision is not
    supported by the record; it also alleges that the Commission
    erred in disregarding the evidence of other instream uses.            In
    Waiâhole I, this court held that where “the record demonstrates
    considerable conflict or uncertainty in the evidence, the agency
    must articulate its factual analysis with reasonable clarity,
    giving some reason for discounting the evidence rejected.”
    Waiâhole I, 94 Hawai#i at 163-64, 
    9 P.3d at 475-76
    .          In its
    FOF/COL D&O, the Commission does not explain its focus on
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    amphidromous species above the evidence of other instream uses.
    Even if the #Îao and Waikapû Streams may not support amphidromous
    species, evidence that they can support other instream uses must
    be weighed against noninstream uses, as required by HRS § 174C-
    71(2)(D).    The Commission erred in not considering this evidence;
    on remand, the Commission must undertake and articulate this
    analysis.    Waiâhole I, 94 Hawai#i at 158, 
    9 P.3d at 470
    (remanding where the Commission “made invalid, inadequate, or
    incomplete findings.”) (citation).
    2.     The Commission Did Not Err In Using USGS Data As A
    Starting Point For Analysis.
    In federal fiscal year 2006, the USGS initiated a study
    of Nâ Wai #Ehâ.   The study consisted of eight parts: (1)
    compiling and analyzing existing information relevant to the
    Waihe#e River, and Waiehu, #Îao, and Waikapû Streams, (2)
    conducting baseline reconnaissance surveys of the streams to
    identify sites of diversion and return flow and significant
    gaining and losing reaches, (3) establishing low-flow partial-
    record stations in reaches with flowing water to characterize
    natural and current diverted flows in Nâ Wai #Ehâ streams, (4)
    establishing temperature-monitoring sites in reaches with flowing
    water to provide information on temperature variations for
    diverted and undiverted conditions, (5) monitoring the frequency
    of dry days in selected reaches of the diverted streams to
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    establish the number of days during which continuous mauka-to-
    makai flow is available for the upstream movement of native
    species, (6) surveying the presence or absence of native and non-
    native aquatic species in selected stream reaches to provide
    baseline data for assessing effects of streamflow restoration,
    (7) collecting macrohabitat, microhabitat, and channel-geometry
    information in selected study reaches downstream from existing
    diversions to characterize the effects of diversions on habitat
    for native stream macrofauna, and (8) analyzing data and
    producing a report summarizing the study findings.
    Photographic information from cameras mounted at three
    selected sites downstream of all diversions established that from
    September 2006 to July 2007, North Waiehu Stream was dry about 79
    percent of the time, #Îao Stream was dry about 70 percent of the
    time, and Waikapû Stream was dry about 37 percent of the time.
    At the time of the Commission’s decision, USGS had requested, as
    part of its study, to partially or fully restore mauka-to-makai
    flow to Waihe#e River, Waiehu Stream, and #Îao Stream17 to allow
    measurements of streamflow, infiltration, and physical habitat
    for different flow conditions in sections of the stream that are
    commonly dry due to diversions.        The proposal sought to release
    water into the streams in three phases, each involving a higher
    17
    USGS Hydrologist Delwyn Oki stated that controlled releases would
    be helpful for Waikapû Stream, too, and could be developed in the future.
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    flow than the last; each phase would be maintained for about a
    month and long enough to allow flow conditions to stabilize for
    observation.
    For Waihe#e Stream, USGS proposed flows near the coast
    of 6.5 mgd, 13 mgd, and 26 mgd; this would require flows just
    downstream of the Spreckels Ditch diversion of 10 mgd, 17 mgd,
    and 30 mgd, respectively, for each of the three phases.             For
    North and South Waiehu Streams, USGS proposed flows near the
    coast18 of 0.6 mgd, 1.6 mgd, and 2.6 mgd.         USGS estimated that
    this would require the following flows: South Waiehu Stream at
    Spreckels Ditch would be 0.9 mgd, 1.3 mgd, and 1.6 mgd,
    respectively; North Waiehu Stream at the North Waiehu Ditch would
    be 1.6 mgd, 2.2 mgd, and 2.9 mgd, respectively.           For #Îao Stream,
    USGS proposed flows near the coast of 3.2 mgd, 9.7 mgd, and 16
    mgd; this would require flows just downstream of the #Îao-
    Maniania Ditch diversion of 9.5 mgd, 16 mgd, and 22 mgd,
    respectively.     For the Waikapû Stream, USGS deferred controlled
    releases entirely.
    With regard to the USGS controlled release proposals,
    the Commission specifically found:
    606. “The results [following the controlled releases] are
    intended to be used along with other biological and
    hydrological information in development, negotiations, or
    mediated settlements for instream flow requirements.”
    18
    Recall that the North and South Waiehu Streams join downstream of
    diversions and flow together until reaching the sea.
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    (Gingerich and Wolff, 2005).
    The quote originated in a 2005 USGS Study of Nâ Wai #Ehâ; HC&S’s
    biologist, Thomas R. Payne, quoted that language to make his
    greater point that the USGS controlled releases would not be, in
    his opinion, conclusive to determine IIFS.          This is because the
    controlled releases are designed to study the effect of flow
    conditions on habitat, not to predict the biological response of
    the stream to the flow condition; therefore, the scientists have
    to infer the effect of streamflow on population, “without any
    direct quantification or prediction of individual species.”                In
    Payne’s words, “considerable work remains to be done before
    defensible instream flow standards could be recommended from [the
    controlled release] studies alone.”
    In its Final FOF/COL19 the Commission concluded that:
    The most credible proposals for amending the IIFS are USGS’s
    proposed controlled flows. Of the three proposed phases, the
    [first] phase, totaling 12.5 mgd and comprised of 10.0 mgd
    for Waihe#e River, 1.6 mgd for North Waiehu Stream, and 0.9
    mgd for South Waiehu Stream, provide the best balance
    between instream values and offstream uses, and are the only
    viable IIFS when stream flows are low and all available
    practical alternatives are in use.
    Hui/MTF argues that the Commission “arbitrarily
    misused” USGS’s temporary flow release figures, noting that the
    USGS’s figures were not proposals for IIFS, but rather a proposal
    for scientific study of the area.          Hui/MTF argues that USGS
    19
    Dr. Miike’s Proposed FOF/COL set different IIFS, and did not reach
    this finding.
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    certainly did not consider instream values, and adoption of USGS
    flow levels could not possibly discharge the Commission’s duty to
    balance instream values and noninstream uses.         OHA shares
    Hui/MTF’s criticism; it describes the above-quoted COL as
    “inexplicabl[e].”
    In making their argument, Hui/MTF and OHA appear to
    misstate the Commission’s actual treatment of the USGS figures.
    Even though COL 261, quoted above, suggests that the Commission
    simply adopted the USGS figures, the entirety of the FOF/COL D&O
    actually indicate that the Commission merely utilized the USGS
    figures as a starting point.      First, the Commission explained the
    utility of the USGS figures; the figures “were chosen to
    correspond to specified flows at the stream mouths, after
    adjusting for losses into the stream beds in the lower reaches of
    each stream.”   As described earlier, the Commission focused its
    analysis on establishing mauka-to-makai streamflow in streams
    that would support amphidromous species; for this the USGS
    estimation of loss in the streams’ losing reaches is helpful
    data.   Second, the Commission did not simply adopt the USGS
    figures, but rather adapted one of the three USGS figures as part
    of its analysis; the USGS proposed release for #Îao Stream was
    9.5 mgd, but the Commission decided not to limit diversions of
    that stream based on its conclusion that restoration was unlikely
    to support amphidromous species.         Even though, as explained
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    above, this reasoning does not adequately discharge its duties in
    this case, the Commission did not err in utilizing the USGS
    figures as a starting point for its analysis.
    D.    The Commission Violated The Public Trust In Its Treatment Of
    Diversions.
    Hui/MTF argues that the Commission erred in its
    estimation of HC&S, MDWS, and WWC’s diversions.            Hui/MTF alleges
    that the Commission did not hold the diverters to their burden of
    proof and then “penalized the public trust” for the absence of
    data, that the Commission failed to consider variable offstream
    demands in setting the IIFS, and that the Commission did not
    properly require the diverters to justify system losses.              Both
    Hui/MTF and OHA argue that the Commission erred in its
    consideration of Well No. 7; Hui/MTF also argues that the
    Commission erred in its consideration of recycled water as an
    alternative source.      Finally, Hui/MTF contends that the
    Commission erred in calculating HC&S’s acreages.            The following
    sections consider each argument in turn.
    1.     The Commission Did Not Err In Articulating The Burden
    Of Proof In Determining An IIFS.
    Hui/MTF argues that the Commission erred because it did
    not hold the diverting parties to a burden of proof; they argue
    that Waiâhole I requires noninstream users to justify their
    diversions in light of the water uses protected by the public
    trust.     The flaw of their argument is that the portions of
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    Waiâhole I that they cite apply to the WUPA process.           In the
    context of IIFS petitions, the water code does not place a burden
    of proof on any particular party; instead, the water code and our
    case law interpreting the code have affirmed the Commission’s
    duty to establish IIFS that “protect instream values to the
    extent practicable” and “protect the public interest.”           In re
    Water Use Permit Applications “Waiâhole II”, 105 Hawai#i 1, 11,
    
    93 P.3d 643
    , 653 (2004); HRS § 174C-71(2)(A).         Accordingly, our
    review of the Commission’s analysis of the stream diversions must
    focus on whether or not the Commission properly discharged this
    duty.     Where the Commission’s decisionmaking evinces “a level of
    openness, diligence, and foresight commensurate with the high
    priority these rights command under the laws of our state,” the
    decision satisfies close look review governing public trust
    resources.     Wai#ola, 103 Hawai#i at 422, 
    83 P.3d at 685
    .
    2.      The Commission Did Not Err In Using Dr. Fares’s Model
    Of Irrigation Requirements As A Starting Point For
    Analysis.
    Hui/MTF argues that the Commission erred in its
    treatment of testimony from Dr. Ali Fares, a hydrologist who
    testified as an expert witness for Hui/MTF, OHA, and MDWS.            Dr.
    Fares is an Associate Professor in the Department of Natural
    Resources and Environmental Management at the University of
    Hawai#i, Mânoa.    Dr. Fares testified regarding his estimation of
    the optimal irrigation requirements for HC&S’s sugar cane fields.
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    Dr. Fares’s model considered historical rainfall data,
    evapotranspiration or pan evaporation data20, and data regarding
    the soil; he then calculated, over the historical period covered
    by the rainfall data, how much irrigation water would have been
    required to grow the sugar crop.          Dr. Fares statistically
    analyzed the results to calculate the average amount of
    irrigation water needed in the wettest year and the driest year,
    as well as the amount of water that would have supplied the
    irrigation requirement between the two extremes.            Dr. Fares
    calculated the optimal irrigation requirements using the 80
    percent probability standard because it’s the industry standard
    utilized in both government and the private sector.            Under the 80
    percent probability standard, water meeting or exceeding
    requirements is available four out of every five days.
    HC&S employees testified that they used a different
    model called a water balance model, which differs from Fares’s
    model in that it uses “real-time data” collected from four rain
    stations and two evaporation stations located in the west Maui
    fields.    The Commission found that real-time data is more
    reliable than long-term daily averages to calculate irrigation
    requirements.
    20
    Evotranspiration (or evapo-transpiration) is the loss of water
    from the soil by evaporation and by transpiration from plants growing in the
    soil. Pan evaporation is a measurement of water from an open pan, which can
    be correlated to the water demands of a specific crop.
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    Both models also consider irrigation efficiency, or the
    percentage of water that is actually delivered to the plants, as
    opposed to the amount that is channeled through, and possibly
    lost in, the irrigation system.       Fares used an 85 percent
    irrigation efficiency figure for his calculations; this is
    industry standard.    HC&S’s estimations takes into account the
    different types of tubing, the length of tubes, and variations in
    topography; HC&S’s estimations utilize an 80 percent efficiency
    standard.   The Commission accepted Fares’s use of 85 percent
    irrigation efficiency.
    HC&S stressed the importance of basing water management
    on actual field conditions, rather than models.          The Commission
    found that Fares had not personally visited the HC&S fields or
    inspected the HC&S irrigation system; he also never studied
    actual water usage for sugar cane.       Moreover, HC&S
    representatives testified that Fares’s model does not account for
    several factors increasing water usage, including water run
    through irrigation lines to detect leaks and irrigation water
    that is “lost” because it is applied just before it rains.            HC&S
    also testified that it is impractical to assume that HC&S can
    irrigate to restore soil moisture exactly when necessary; this is
    not always the case for several reasons, including the facts that
    only a fraction of the fields actually receive water at any given
    time, and sometimes fertilizers and herbicides preclude watering.
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    In its FOF/COL D&O, the Commission accepted Fares’s
    estimates of irrigation requirements, but added five percent to
    account for the above-listed factors identified by HC&S that
    Fares’s model does not incorporate.        Hui/MTF argue that this was
    error because the five percent increase is “random” and accounts
    for “unsubstantiated excuses.”      HC&S responds that the Commission
    was not limited to choosing between Dr. Fares’s model and HC&S’s
    estimates, but rather that the Commission was empowered to
    utilize the information presented as it saw fit, as long as its
    decision was supported by the evidence.
    The court has held that, due to the fact that the
    Commission must articulate an IIFS at an “early planning stage”
    of water management, the Commission “need only reasonably
    estimate instream and offstream demands.”         Waiâhole I, 94 Hawai#i
    at 155 n.60, 
    9 P.3d at
    467 n.60.         The court also explained that
    the IIFS may be based “not only on scientifically proven facts,
    but also on future predictions, generalized assumptions, and
    policy judgments.”    Waiâhole I, 94 Hawai#i at 155, 
    9 P.3d at 467
    .
    In this case, the Commission concluded, based on the above-listed
    facts showing an incongruity between Fares’s model and field
    conditions, that the model would be insufficient to quantify
    actual irrigation requirements.       The Commission then added five
    percent to Fares’s figures to account for this difference.            The
    Commission fully explained its logic in predicting the irrigation
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    requirements, and it settled on a figure that is a small
    deviation from the Hui/MTF expert’s proposal.         Faced with the
    question of whether the record lacks substantial evidence to
    support the estimates, the answer must be no; the court therefore
    concludes that the Commission did not err in its use of Fares’s
    model numbers as a starting point in articulating irrigation
    requirements for HC&S’s fields.
    3.   The Commission Erred In Calculating HC&S’s Acreage.
    Hui/MTF argues that the Commission erred in including
    fields 921 and 922 when calculating HC&S’s acreage.           Hui/MTF
    alleges error on two grounds: first, the Commission wrongfully
    took judicial notice of facts affecting an alternative water
    source for the fields, and second, the soil quality of fields 921
    and 922 is poor and it is unreasonable to provide fresh water to
    cultivate them.
    As the Commission found, fields 921 and 922 are sandy
    “scrub land” that HC&S had never cultivated until sometime
    between 1995 and 1997 when it entered into an agreement with Maui
    Land and Pine (“MLP”), under which MLP delivered wastewater from
    its pineapple cannery to irrigate the fields for seed cane.
    After the close of evidence, the Commission took judicial notice
    of newspaper reports that: (1) MLP announced that it would cease
    pineapple operations, (2) Haliimaile Pineapple Company would
    “revive” the fresh fruit operations, and (3) this “should not
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    result in a restoration of the wastewater source.”          Hui/MTF
    argues that it was error for the Commission to take judicial
    notice of these three “facts”.
    Hawai#i Rules of Evidence (“HRE”) Rule 201, limits the
    scope of judicial notice to facts “not subject to reasonable
    dispute in that it is either (1) generally known within the
    territorial jurisdiction of the trial court, or (2) capable of
    accurate and ready determination by resort to sources whose
    accuracy cannot reasonably be questioned.”         HRE Rule 201(b).        In
    this case, the Commission took judicial notice of facts presented
    in two newspaper articles.      There is precedent for taking
    judicial notice of facts as reported by newspapers.           Application
    of Pioneer Mill Co., 
    53 Haw. 496
    , 497 n.1, 
    497 P.2d 549
    , 551 n.1
    (taking judicial notice that a land court judge had announced his
    candidacy for public office, based upon newspaper articles
    submitted by the parties).      In this case, however, the Commission
    went further than taking notice of facts reported in newspapers:
    it predicted the impact of those facts on HC&S’s water supply.
    HRE Rule 201 does not permit the Commission to take judicial
    notice of a possible effect of a change in ownership in the
    pineapple cannery.    First, this prediction fits neither prong of
    the relevant rule of evidence; the effect of the change of
    ownership on HC&S’s water supply is neither “generally known
    within the territorial jurisdiction” nor “capable of accurate and
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    ready determination by resort to sources whose accuracy cannot
    reasonably be questioned.”      HRE Rule 201(b).     Second, the
    prediction that wastewater will no longer be available is purely
    speculative.    In fact, one of the Commission’s FOF contradicts
    this speculation, stating “due to the shutdown of MLP’s cannery
    operation, MLP mill wastewater will only be able to supply
    approximately half of the irrigation requirements of Fields 921
    and 922 in the future.”     Furthermore, it is entirely possible
    that the company that “revived” operations also “revived” the
    practice of providing wastewater to HC&S.         Hui/MTF are correct
    that the Commission’s taking judicial notice in this instance was
    improper.
    Hui/MTF also argues that the Commission erred in
    permitting HC&S to include fields 921 and 922 in its acreage
    because it is marginal farm land, or, as found by the Commission,
    “sandy ‘scrub land.’”     Hui/MTF argues that the burden is on HC&S
    to show “the propriety of draining water from public streams” to
    irrigate this land which had been uncultivated until a wastewater
    source was available.
    The Commission found that fields 921 and 922 are
    similar to field 920, another “sandy ‘scrub land’” field on which
    HC&S ceased cultivation because it “has a very sandy soil and has
    consumed more water than other fields.”        The Commission also
    explicitly excluded field 920 from HC&S’s acreage and water duty
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    calculations, “because it has consumed more water because of the
    porosity of its sandy soil and its use for seed cane.”           HC&S
    points to testimony from HC&S’s agronomist that HC&S is able to
    grow sugar on those fields because the sandy area has loam soil
    underneath it, thus permitting HC&S to achieve “good crop
    growth.”   Though HC&S draws the court’s attention to this
    testimony in its briefing, this testimony is not included in the
    Commission’s FOF/COL D&O.     In fact, the Commission found no
    explicit facts regarding the propriety of cultivating the fields;
    instead the Commission included fields 921 and 922 in HC&S’s
    acreage without explanation.      As evinced by HC&S’s and the
    Commission’s treatment of field 920, the wisdom of irrigating
    fields 921 and 922 with Nâ Wai #Ehâ water is questionable.           The
    record does not contain sufficient analysis to support the
    conclusion that fields 921 and 922 should be treated differently
    from field 920.   Similarly, the record does not contain
    sufficient analysis showing that the Commission considered these
    fields with “a level of openness, diligence, and foresight”
    required when authorizing the diversion of our public trust res.
    On remand, the Commission must reevaluate its determination that
    HC&S should be permitted to divert Nâ Wai #Ehâ water to irrigate
    fields 921 and 922.
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    4.    The Commission Erred In Its Treatment Of Some Of The
    Diverters’ System Losses.
    Hui/MTF also argues that the Commission erred in
    failing to hold HC&S and WWC to their burdens of proof regarding
    losses.    Hui/MTF contends that diverting parties bear a burden of
    justifying losses and adopting practicable mitigation.             WWC
    argues that there is no burden of proof on diverting parties in
    an IIFS proceeding; WWC also notes that “[n]othing within HRS §
    174C-71(2) mandates that the Commission consider or not consider
    system losses.       Likewise nothing within the public trust doctrine
    mandates that the Commission consider or not consider system
    losses.”   HC&S responds that “some system loss, such as
    evaporation from open ditches and reservoirs, is unavoidable and
    not unreasonable,” and that the Commission’s determination of
    system losses is reasonable and not clearly erroneous.
    With regard to losses, the Commission found:
    375. The great majority of WWC’s ditches are open and
    unlined. All of WWC’s reservoirs are unlined.
    376. WWC did not address the feasibility of minimizing the
    losses from its system except to state that it “may . . . in
    the future” have plans to line the unlined portions of their
    system.
    [. . .]
    423. HC&S estimates that it loses 6-8 mgd through seepage
    from the Waiale reservoir, depending on the level of the
    reservoir. Seepage throughout the rest of the HC&S ditch and
    reservoir system is estimated to be 3-4 mgd.
    [. . .]
    425. HC&S acknowledges that “high density polyethylene
    lining could negate much of the seepage, not all of it” and
    that concrete lining “is obviously another option.” HC&S
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    has no estimates of the cost to line Waiale Reservoir or the
    other reservoirs and ditches and has undertaken no
    engineering or financial analysis of what it would take to
    reduce the losses.
    The Commission concluded that WWC and HC&S have “not established
    the lack of practicable mitigating measures to address these
    losses.”    The Commission then “assum[ed]” that “losses could be
    halved” by lining most of WWC’s reservoirs, and concluded that
    WWC’s reasonable losses are 2.0 mgd.         The Commission also deemed
    HC&S’s reasonable losses to be 2.0 mgd, after estimating that
    HC&S could line the Waiale Reservoir to prevent 6-8 mgd, and,
    like WWC, could halve remaining losses.
    First, in considering these losses, it is necessary to
    recognize the magnitude of the losses.          If the Commission’s
    estimates are correct and system losses run between 13-16 mgd21,
    then the minimal estimation of that loss is approximately twice
    the 6.84 mgd the Commission estimated for deliveries to all
    kuleana system users in Nâ Wai #Ehâ.         The lowest estimation of
    losses, 13 mgd, is higher than the total volume that the final
    IIFS restore to the Waihe#e and Waiehu Streams.22           Briefly stated,
    losses in the water system of Nâ Wai #Ehâ are massive.             The
    Commission’s order that HC&S line the Waiale Reservoir to prevent
    a large portion of these losses is commendable and shows the
    21
    This includes 6-8 mgd for the Waiale Reservoir, 3-4 mgd for HC&S’s
    water system, and 4 mgd for WWC’s water system.
    22
    This includes 10 mgd for Waihe#e Stream, 1.6 mgd for North Waiehu
    Stream, and 0.9 mgd for South Waiehu Stream, for a total of 12.5 mgd.
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    “diligence” and “foresight” expected of the Commission in its
    management of the public trust.
    Second, WWC contends that the Commission, when setting
    an IIFS, does not have to consider system losses.          The Commission
    does not respond to the argument in its answering brief, but the
    water code indicates that a diverter’s system losses may factor
    into the Commission’s estimations of noninstream uses when it
    sets an IIFS.    The statute articulating the IIFS standards
    mandates that the Commission “weigh the importance of the present
    or potential instream values with the importance of the present
    or potential uses of water for noninstream purposes, including
    the economic impact of restricting such uses[.]”          HRS § 174C-
    71(2)(D).    The plain meaning of the word “importance” requires
    the Commission to judge the value of a party’s noninstream use
    against the other present or potential uses.         The value of
    diverting water, only to lose the water due to avoidable or
    unreasonable circumstances is unlikely to outweigh the value of
    retaining the water for instream uses.        Therefore, the Commission
    did not err in considering losses.
    However, it appears that the Commission erred in its
    articulation of the burden of proof regarding losses.           The
    Commission’s FOF/COL D&O twice cites Waiâhole I and Waiâhole II
    for authority that “[o]ffstream users have the burden to prove
    that any system losses are reasonable-beneficial by establishing
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    the lack of practicable mitigation measures, including repairs,
    maintenance, and lining of ditches and reservoirs.”           The
    Commission erred placing the burden of proof on the parties in
    the IIFS proceeding, as the authorities cited by the Commission
    apply in the context of a WUPA.       In Waiâhole I, the cited
    discussion of losses considered Waiâhole Irrigation Company’s
    (“WIC”) request for 2.0 mgd to compensate for the losses of its
    ditch system.   94 Hawai#i at 118, 
    9 P.3d at 430
    .        There, the
    Commission denied WIC’s request, but suggested that WIC could
    draw “non-regulated” surface water to cover the losses; on
    appeal, this court concluded that the Commission’s suggestion was
    erroneous for several reasons, and held that the Commission must
    consider the 2.0 mgd as a “‘use’ pursuant to the permitting
    process.”   94 Hawai#i at 118, 173, 
    9 P.3d at 430, 485
    .          On
    remand, the Commission found that “[o]perational losses are a
    normal component of any water delivery system” and therefore
    issued a permit to WIC’s successor in interest, Agribusiness
    Development Corporation (“ADC”), to cover the losses.           Waiâhole
    II, 105 Hawai#i at 27, 
    93 P.3d at 669
    .       When that decision
    returned to this court on further appeal, this court held that
    the Commission’s decision was incomplete because it did not
    include findings that ADC met its burden as a permit holder
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    pursuant to HRS § 174C-49(a)23.         Id.    This burden is articulated
    in the WUPA statute, but is absent from the statutes governing
    IIFS.      The Commission erred when it imposed a WUPA burden on the
    diverting parties in the IIFS CCH.            As noted above, the burden in
    setting an IIFS is on the Commission to “protect instream values
    to the extent practicable.”         Waiâhole II, 105 Hawai#i at 11, 
    93 P.3d at 653
    ; HRS § 174C-71(2)(A).
    The court concludes that the Commission did not meet
    this burden when it “assum[ed]” that WWC’s and HC&S’s losses
    could be halved.       As discussed above, the court has held that,
    due to the fact that the Commission must articulate an IIFS at an
    “early planning stage,” the Commission “need only reasonably
    estimate instream and offstream demands.”            Waiâhole I, 94 Hawai#i
    at 155 n.60, 
    9 P.3d at
    467 n.60.            Though reasonable estimates are
    23
    HRS § 174C-49(a) states that “[t]o obtain a permit pursuant to
    this part, the applicant shall establish that the proposed use of water:
    (1) Can be accommodated with the available water source;
    (2) Is a reasonable-beneficial use as defined in section 174C-3;
    (3) Will not interfere with any existing legal use of water;
    (4) Is consistent with the public interest;
    (5) Is consistent with state and county general plans and land use
    designations;
    (6) Is consistent with county land use plans and policies; and
    (7) Will not interfere with the rights of the department of
    Hawaiian home lands as provided in section 221 of the
    Hawaiian Homes Commission Act.
    HRS § 174C-49(a) (1993).
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    permitted at this stage, the Commission did not provide any
    analysis on how it reached that figure to show that it had
    “reasonably estimate[d]” that half of the losses could be
    eliminated.     In choosing a number that appears to be arbitrary,
    the Commission could have significantly over- or underestimated
    the potential for mitigation of losses in HC&S’s and WWC’s water
    systems.     On remand, the Commission must “reasonably estimate”
    losses, mindful of its duty to “protect instream values to the
    extent practicable.”
    5.      The Commission Erred In Its Consideration Of HC&S’s
    Well No. 7.
    Hui/MTF argues that the Commission arbitrarily
    minimized Well No. 7’s potential contributions.          OHA raises a
    similar challenge regarding Well No. 7; it contends that the
    Commission did not properly weigh HC&S’s potential use from the
    well.     More specifically, OHA claims that HC&S did not
    demonstrate that Well No. 7 is not a practicable alternative, and
    that the Commission’s lowering of Well No. 7’s yield was
    arbitrary and capricious.
    Well No. 7 is the only one of HC&S’s sixteen brackish
    water wells on its plantation that is able to introduce water
    into HC&S’s internal ditch system.       From 1927 until the 1980s,
    Well No. 7 was HC&S’s primary source of irrigation water for the
    3,650-acre Waihe#e-Hopoi Fields; HC&S pumped an average of about
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    21 mgd from Well No. 7 until 1988, when a competing sugar company
    ceased operations, freeing up a great amount of Nâ Wai #Ehâ water
    for HC&S use.     For the past twenty-five years, HC&S has minimized
    use of Well No. 7, but it has occasionally used the well; in
    fact, it used the well heavily on two occasions: for six months
    from June through November of 1996, HC&S pumped an average of 25
    mgd, and for six months from May through October 2000, HC&S
    pumped an average of 18.9 mgd.
    Well No. 7 is currently configured with three pumps:
    pumps 7A and 7B are at water level and can each pump 17.5 mgd to
    ground level, for a total of 35 mgd, which it can distribute to
    about 800 acres of the 3,650 acres of the Waihe#e-Hopoi Fields.
    The third pump, Pump 7C, is a booster pump at ground level that
    HC&S claims can pump 14 mgd24 from pump 7A to Waihe#e Ditch for
    distribution to all of the Waihe#e-Hopoi Fields except for the
    175-acre Field 715.
    During the hearings, HC&S offered four explanations for
    its argument that it would be impracticable to rely heavily on
    water pumped from Well No. 7.        First, HC&S estimates that it
    would incur an estimated $1 million dollars in capital costs to
    install new pipelines and pumps.          Second, HC&S claims that it
    24
    The Commission’s FOF indicate suspicion about the accuracy of this
    figure. FOF 497 states, “According to HC&S, as currently configured, Well No.
    7 can supply only 14 mgd to the Waihe#e-Hopoi Fields, with the exception of
    Field 715. However, HC&S’s records do not indicate that Well. No. 7 was ever
    configured differently than its current configuration.”
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    does not have adequate electrical power to run the pumps on a
    consistent and sustained basis because of its power contract with
    Maui Electric Company (“MECO”).       HC&S estimates it would incur
    costs of $777,650 to upgrade its pumps and electrical equipment
    to meet MECO’s standards for servicing such equipment; HC&S also
    claims it would cost $7,440 per day for energy to run Well No. 7,
    and that HC&S would lose $1.8 million in revenues under its
    contract with MECO as well as a decrease in HC&S’s avoided cost
    rate and penalties three times the power rate for power it does
    not deliver.   Third, HC&S claims that increased pumping would
    exacerbate the degree to which sustainable yield is already being
    exceeded and reduce the recharge from the imported surface water
    that sustains the Kahului aquifer.       Fourth, HC&S claims that
    increased pumping of the well would increase the salinity of the
    water.
    The Commission’s Final D&O considered the first three
    factors listed above (the capital costs, energy costs, and
    aquifer recharge) and determined that HC&S must pump only 9.5 mgd
    from Well No. 7.    The Commission determined that Well No. 7 is an
    alternative that most likely would not be available on a daily
    basis, citing the uncertainties about the recharge rate and
    electrical power.    In determining that HC&S must pump 9.5 mgd,
    the Commission required that HC&S pay additional energy costs to
    pump the water, but did not require HC&S to accrue any capital
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    costs.   The D&O requires HC&S to provide monthly ground water use
    reports documenting the volume of water pumped from Well No. 7,
    along with ground water levels and salinity measurements.
    In his dissent, Dr. Miike criticized the Commission
    majority for its treatment of Well No. 7, writing that the 9.5
    mgd figure is “without any credible foundation.”          This is a main
    point of error on appeal for Hui/MTF and OHA; they argue that the
    Commission arbitrarily minimized Well No. 7’s potential
    contributions as an alternative source to Nâ Wai #Ehâ water.
    The Commission’s response is contradictory and makes it
    clear that guidance is necessary in this area.          First, the
    Commission responds that “neither the statutes nor the
    administrative rules require an analysis of practicable
    alternatives in setting the IIFS.”       The Commission then asserts
    that Well No. 7 “had a place” in the IIFS analysis because it is
    a consideration when weighing instream values with offstream
    purposes when establishing the IIFS.
    The analysis with regard to alternative sources is
    similar to the analysis with regard to system losses, supra.               The
    water code requires the Commission to “weigh the importance of
    the present or potential instream values with the importance of
    the present or potential uses of water for noninstream purposes,
    including the economic impact of restricting such uses[.]”            HRS §
    174C-71(2)(D).   The plain meaning of the word “importance”
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    requires the Commission to judge the value of a party’s
    noninstream use against the other present or potential uses.
    Furthermore, as the water code’s Declaration of Policy explains,
    “[t]he state water code shall be liberally interpreted to obtain
    maximum beneficial use of the waters of the State . . . .”             HRS §
    174C-2(c) (1993).    Allowing a water user to divert water from the
    public trust res when that user has exclusive access to an
    alternative water source that is currently un- or under-used
    would not effect the Legislature’s policy as expressed in the
    water code.   This suggests that the Commission’s second argument
    is correct; Well No. 7, as an alternative source, “has a place”
    in the analysis of setting an IIFS because the availability of
    alternative water sources necessarily diminishes the “importance”
    of diverting Nâ Wai #Ehâ water for noninstream use.
    Hui/MTF, OHA, HC&S, and WWC do not dispute the
    relevance of Well No. 7 water to the IIFS analysis; they do,
    however, disagree on whether the diverting party bears a burden
    of proof with regard to this point of analysis.          Hui/MTF argues
    that HC&S bears a burden to prove that using Well No. 7 is not
    practicable, and that the Commission is “duty bound” to hold HC&S
    to its burden.   OHA agrees that the burden falls to HC&S to
    demonstrate that Well No. 7 is not a practicable alternative.
    HC&S and WWC both argue that the burden falls to the Commission
    to determine IIFS that best serve the public interest.           The
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    Commission’s FOF/COL D&O does not specify a burden of proof for
    alternative sources, as it did for system losses.          In its
    introduction, however, the Commission does specify a general
    standard that “[f]or those seeking private, commercial uses of
    water, there is a higher level of scrutiny.         In practical terms,
    this means that the burden ultimately lies with those seeking or
    approving such uses to justify them in light of the purposes
    protected by the trust.”     More specific to alternative sources,
    the Commission stated that it “is not obliged to ensure that any
    particular user enjoys a subsidy or guaranteed access to less
    expensive water sources when alternatives are available and
    public values are at stake,” and also that “[a]n applicant’s
    inability to afford an alternative source of water, standing
    alone, does not render that alternative impracticable.”
    In evaluating Well No. 7 and HC&S’s four arguments
    listed above, the Commission found the following:
    494. [. . .] From 1927 until additional Na Wai ‘Eha water
    became available in the l980s, HC&S’s primary source of
    irrigation water for its Waihe#e-Hopoi Fields was Well No.
    7, [. . .] a brackish water well.
    495. Between 1927 and 1985, HC&S pumped an average of about
    21 mgd from Well No. 7. Since the additional Na Wai ‘Eha
    flows became available. HC&S has minimized its use of Well
    No. 7 but used it heavily on to occasions: e.g., for the
    six-month period from June through November of 1996, an
    average of 25 mgd was pumped; and for the six-month period
    from May through October of 2000, an average of 18.9 mgd was
    pumped.
    [. . .]
    497. According to HC&S, as currently configured, Well No. 7
    can supply only 14 mgd to the Waihe#e-Hopoi Fields, with the
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    exception of Field 715. However, HC&S’s records do not
    indicate that Well No. 7 was ever configured differently
    than its current configuration.
    498. HC&S estimates that it would cost approximately
    $525,000 to add another booster pump and additional
    distribution pipeline to increase the volume that can be
    pumped from Well No. 7 to HC&S’s Waihe#e Ditch from 14 mgd
    to 28 mgd; and the cost of an additional pipeline to reach
    Field 715 would be $475,000.
    499. HC&S also claims that it does not have adequate
    electrical power to run the pumps for Well No. 7 on a
    consistent and sustained basis because of its power contract
    with Maui Electric Company (“MECO”) and limitations of its
    capacity to generate electricity through its system of
    burning bagasse and other supplemental fuels in its power
    plant and the operation of its hydro power turbines on its
    ditch system which are supplied by East Maui water[.]
    500. HC&S also claims that any increased pumping of water
    from the Kahului aquifer to replace surface water being
    imported from the West Maui Ditch System would both
    exacerbate the degree to which the sustainable yield is
    already being exceeded and reduce the recharge from imported
    surface water that sustains the aquifer.
    These findings of fact are plainly descriptions of testimony.              In
    its conclusions of law section examining “Reasonable Offstream
    Uses,” the Commission restated several of these “findings,”
    indicating that the Commission adopted the testimony as fact.
    The Commission then stated
    The combined facts that the current sustainable yield of the
    aquifer is already being exceeded; that increased pumping
    from Well No. 7 may exacerbate that strain; and that the
    historically higher levels of pumping occurred during a
    period where furrow irrigation methods were affecting
    recharge rates for the aquifer, the practical alternative
    from Well No. 7 is lower than historic rates. Considering
    these uncertainties in combination with the Commission’s
    decision to place the full burden of remedying losses
    immediately upon HC&S, discussed intra, the practical
    alternative from Well No. 7 is deemed 9.5 mgd. This
    alternative will not require capital costs, only the costs
    of pumping.
    The Commission erred in adopting HC&S’s testimony
    without any assessment of the evidence on the record that
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    contradicted HC&S’s arguments.      As the court explained in
    Waiâhole I, where “the record demonstrates considerable conflict
    or uncertainty in the evidence, the agency must articulate its
    factual analysis with reasonable clarity, giving some reason for
    discounting the evidence rejected.”       94 Hawai#i at 163-64, 
    9 P.3d at 475-76
    .   The record shows that the Commission did not explain
    its analysis with “reasonable clarity” regarding any of the
    “facts” recited above.
    For example, OHA shows that, with regard to HC&S’s
    claim that pumping Well No. 7 would result in a diminished
    aquifer, HC&S had represented the exact opposite to the
    Commission in another context but around the same time as the
    hearings in this case.     OHA’s exhibit C-90 is a letter dated
    January 11, 2008 to the Commission from HC&S’s Senior Vice
    President, Rick Volner, regarding the Public Review Draft Water
    Resource Protection Plan (“WRPP”) for parts of West Maui,
    including the Kahului aquifer.      In its letter, HC&S states that
    it has five wells in the Kahului aquifer and eleven wells in the
    Pâ#ia aquifer.   HC&S writes
    Over the last twenty years, the daily average rate of
    withdrawal, by year, for all 16 of these wells combined has
    ranged from approximately 40 mgd to as much as 112 mgd far
    in excess of the combined sustainable yield of between 7 and
    8 mgd for the Kahului and Paia aquifers recommended in the
    Draft WRPP. Several of these wells have been in operation
    for more than a hundred years, and all have been in place
    and operated for many decades without any long term
    deterioration in water quality.
    Though these written comments contradict the evidence it
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    presented regarding its inability to pump Well No. 7 due to the
    alleged recharge problem, the Commission does not explain why it
    disregarded the written comments in favor of HC&S’s evidence
    supporting the existence of a recharge problem.
    The Commission attempted to analyze the economic impact
    of requiring HC&S to augment Nâ Wai #Ehâ water with water from
    Well No. 7.   HC&S claimed that the economic consequences of
    reduced allowable diversion or increased requirements to pump
    Well No. 7 would result in HC&S discontinuing all operations on
    Maui.   The Commission found that:
    HC&S had not “done any economic analysis on how a reduction
    of available surface water in this case would force HC&S to
    shut down”; Mr. Holiday[, President of HC&S’s Agricultural
    Group,] “[could not] say yes or no” when asked whether
    shifting 9 mgd of Nâ Wai #Ehâ surface water to another
    purpose would prevent HC&S from being viable, but testified
    that HC&S is “assuming” that impact “for planning purposes.”
    As the Commission recited in its FOF/COL, Catherine Chan-
    Halbrendt, Professor in the Department of Natural Resources and
    Environmental Management at the University of Hawai#i, Mânoa,
    testified that “the lack of any economic analysis, or the data
    required to conduct such an analysis, prevents anyone, including
    this Commission, from evaluating HC&S’s claims of economic
    impact.”   The Commission agreed that the record was insufficient,
    stating “It would have been more helpful to the Commission if
    either or both parties had provided information on incremental
    decreases in surface water to the 5,000 acres of HC&S’s West Maui
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    Fields.”   Nonetheless, the Commission stated that “the lack of
    such analyses does not prohibit the Commission from its duty of
    weighing instream values with non-instream uses.”
    The record shows, however, that the Commission did not
    merely weigh instream values with noninstream uses; rather, the
    Commission’s own explanation of how it arrived at the 9.5 mgd
    requirement shows that cost to HC&S was the determinative factor.
    The Commission concluded first that there were uncertainties
    regarding the aquifer recharge, and that therefore “the practical
    alternative from Well No. 7 is lower than historic rates.”                That
    is, even though the Commission found that historical rates for
    Well No. 7 showed that “[b]etween 1927 and 1985, HC&S pumped an
    average of about 21 mgd from Well No. 7,” the Commission decided
    that a lower number would be more appropriate.          Then, in
    determining that lower number, the Commission explained:
    Considering these uncertainties [regarding aquifer recharge]
    in combination with the Commission’s decision to place the
    full burden of remedying losses immediately upon HC&S,
    discussed intra, the practical alternative from Well No. 7
    is deemed 9.5 mgd. This alternative will not require
    capital costs, only the costs of pumping.
    (emphasis added).    That is, since the Commission already required
    HC&S to pay to eliminate some of its system losses, it would not
    require HC&S to incur any capital costs to improve Well No. 7.
    The Commission erred when it made its decision
    regarding Well No. 7 based on cost while explicitly acknowledging
    that it did not have the data it needed to truly analyze cost.
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    “[T]he Commission must not relegate itself to the role of a mere
    ‘umpire passively calling balls and strikes for adversaries
    appearing before it,’ but instead must take the initiative in
    considering, protecting, and advancing public rights in the
    resource at every stage of the planning and decisionmaking
    process.”    Waiâhole I, 94 Hawai#i at 143, 
    9 P.3d at 455
    (citations).     When such critical information is missing, the
    Commission must “take the initiative” to obtain the information
    it needs.    Where the Commission’s decisionmaking does not display
    “a level of openness, diligence, and foresight commensurate with
    the high priority these rights command under the laws of our
    state,” the decision cannot stand.         Wai#ola, 103 Hawai#i at 422,
    
    83 P.3d at 685
    .     On remand, the Commission must revisit its
    analysis of Well No. 7 as an alternative source to diverting Nâ
    Wai #Ehâ water, as explained in this opinion.
    6.    The Commission Erred In Its Consideration of Recycled
    Wastewater.
    Hui/MTF argues that the Commission erred in failing to
    consider the practicability of using recycled wastewater from the
    Wailuku/Kahului wastewater treatment plant.           In its FOF/COL D&O,
    the Commission concluded that at least 5 mgd of recycled
    wastewater “is currently disposed of via underground injection.”
    In response to Hui/MTF’s urging that HC&S be required to utilize
    this water, the Commission found that “the County currently has
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    no existing infrastructure to deliver recycled wastewater to
    HC&S’s fields.”   The Commission also heard testimony that
    “private parties could construct their own pipeline to the
    plant.”   The Commission appears to have concluded that this
    alternative did not merit consideration, based solely on the
    current lack of infrastructure.       This decision does not evince “a
    level of openness, diligence, and foresight commensurate with the
    high priority these rights command under the laws of our state.”
    Wai#ola, 103 Hawai#i at 422, 
    83 P.3d at 685
    .        The recycled
    wastewater was quantified as “at least 5 mgd”; 5 mgd is nearly
    enough water to satisfy all kuleana users in Nâ Wai #Ehâ and
    would be a significant contribution to HC&S’s water needs.            On
    remand, the Commission must evaluate this alternative with
    “openness, diligence, and foresight” to determine whether it is a
    viable alternative to diverting Nâ Wai #Ehâ water.
    VI.   CONCLUSION
    As explained in Section V.A., supra, MDWS’s cross-
    appeal is dismissed.
    We recognize and appreciate the substantial time,
    energy, and diligence that the Commission, Dr. Miike, and the
    parties have invested in this case.       However, for the reasons
    stated above, the Commission on Water Resource Management’s
    June 10, 2010 Findings of Fact, Conclusions of Law, Decision and
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    Order is hereby vacated and remanded to the Commission for
    further proceedings consistent with this opinion.
    Isaac H. Moriwake and                 /s/ Mark E. Recktenwald
    D. Kapua#ala Sproat of
    Earthjustice for Appellant            /s/ Paula A. Nakayama
    Hui O Nâ Wai #Ehâ and
    Maui Tomorrow Foundation, Inc.        /s/ Sabrina S. McKenna
    Anna Elento-Sneed and                 /s/ Rom A. Trader
    Pamela W. Bunn of Alston Hunt
    Floyd & Ing for Appellant
    Office of Hawaiian Affairs
    Patrick K. Wong, Corporation
    Counsel and Jane E. Lovell,
    Deputy Corporation Counsel,
    County of Maui, and Jon M.
    Van Dyke, for Appellee/Cross-
    Appellant County of Maui,
    Department of Water Supply
    Donna H. Kalama and Julie H.
    China, Deputy Attorneys
    General, for Appellee
    Commission on Water Resource
    Management
    David Schulmeister and Elijah
    Yip of Cades Schutte LLP for
    Appellee Hawaiian Commercial
    and Sugar Company
    Paul R. Mancini and James W.
    Geiger of Mancini, Welch &
    Geiger and Gilbert S.C. Keith-
    Agaran for Appellee Wailuku
    Water Company, LLC
    88