IN THE MATTER OF THOMAS ORBAN/SQUARE PROPERTIES, LLC, FRESHWATER WETLANDS GENERAL PERMIT 6 NO. 1XXX-XX-0003.1 FWW070001, CHALLENGED BY SAVE HAMILTON OPEN SPACE (DEPARTMENT OF ENVIRONMENTAL PROTECTION) ( 2019 )


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  •              NOT FOR PUBLICATION WITHOUT THE
    APPROVAL OF THE APPELLATE DIVISION
    SUPERIOR COURT OF NEW JERSEY
    APPELLATE DIVISION
    DOCKET NO. A-3072-16T2
    IN THE MATTER OF
    THOMAS ORBAN/SQUARE                   APPROVED FOR PUBLICATION
    PROPERTIES, LLC, FRESHWATER
    WETLANDS GENERAL PERMIT 6                     August 29, 2019
    NO. 1103-03-0003.1 FWW070001,             APPELLATE DIVISION
    CHALLENGED BY SAVE
    HAMILTON OPEN SPACE.
    ________________________________
    Argued February 27, 2019 - Decided August 29, 2019
    Before Judges Accurso, Vernoia and Moynihan.
    On appeal from the New Jersey Department of
    Environmental Protection.
    Stuart J. Lieberman argued the cause for appellant
    Save Hamilton Open Space (Lieberman & Blecher,
    PC, attorneys; Stuart J. Lieberman, of counsel and on
    the brief; Jordan Michael Asch, on the briefs).
    Afiyfa Hakim Ellington argued the cause for
    respondent Thomas Orban/Square Properties, LLC
    (Giordano Halleran & Ciesla, PC, attorneys; Paul H.
    Schneider and Afiyfa Hakim Ellington, on the brief).
    Bruce A. Velzy, Deputy Attorney General, argued the
    cause for respondent Department of Environmental
    Protection (Gurbir S. Grewal, Attorney General,
    attorney; Jason Wade Rockwell, Assistant Attorney
    General, of counsel; Bruce A. Velzy, on the brief).
    Deanna K. Tanner of the Pennsylvania bar, admitted
    pro hac vice, argued the cause for amicus curiae
    Delaware Riverkeeper and Delaware Riverkeeper
    Network (Aaron Joseph Stemplewicz and Deanna K.
    Tanner, attorneys; Aaron Joseph Stemplewicz and
    Deanna K. Tanner, on the brief).
    The opinion of the court was delivered by
    ACCURSO, J.A.D.
    Save Hamilton Open Space (SHOS), a local citizens group, challenges
    the Department of Environmental Protection's issuance of a freshwater
    wetlands general permit 6 (GP6) to Thomas Orban/Square Properties, LLC in
    connection with the construction of a shopping center in Hamilton Township
    and the denial of SHOS's request for an adjudicatory hearing. SHOS raises
    three issues on appeal:    first, it contends the GP6 is substantively non -
    compliant due to the misuse of the New Jersey Geological Survey Report,
    GSR-32 methodology to calculate recharge analysis in wetlands areas contrary
    to the Department's own rules; second, it contends the Department has never
    before permitted use of the GSR-32 methodology to calculate groundwater
    recharge in wetlands areas, and it is thus a new application requiring formal
    rulemaking; and third, it contends it was entitled to an adjudicatory hearing.
    Amici Curiae Delaware Riverkeeper and Delaware Riverkeeper Network
    support SHOS's position, contending "strict compliance with storm water
    management rules are of critical importance to New Jersey," and echoing its
    A-3072-16T2
    2
    arguments that the Department's issuance of the GP6 was arbitrary and
    capricious and its denial of a hearing improper.
    Having reviewed the record, we determine SHOS's argument that it was
    entitled to an adjudicatory hearing is without sufficient merit to warrant
    discussion in a written opinion, R. 2:11-3(e)(1)(E); see In re Freshwater
    Wetlands Statewide Gen. Permits, 
    185 N.J. 452
    , 471 (2006) (holding third-
    party objector to development application lacked particularized property
    interest warranting an adversarial hearing before an administrative law judge).
    Because we cannot, however, discern where the agency has explained why
    Square Properties' use of the GSR-32 methodology to calculate recharge is
    consonant with the Department's regulations, which appear to expressly
    prohibit its use in these circumstances, we vacate the GP6 permit and remand
    for further fact-finding. In light of our disposition, we do not address SHOS's
    argument that the agency needed to proceed through rulemaking.
    Although the engineering calculations underlying Square Properties'
    stormwater plan are complex, the issues before us are not. The matter has over
    a decade-long procedural history, most of which is irrelevant to the issues we
    decide. Suffice it to say that Square Properties, owner of a roughly five acre,
    heavily wooded site along Route 33 in Hamilton, applied for site plan approval
    A-3072-16T2
    3
    for a shopping center in 2006. SHOS participated in the public hearings as an
    objector.
    As both a condition of its approval and part of a settlement agreement
    with SHOS, Square Properties agreed to apply for a GP6 permit to fill two
    areas of isolated, non-tributary wetlands of intermediate resource value, and
    that SHOS and its consultant, Princeton Hydro, would have the opportunity to
    review the stormwater plans and consult regarding stormwater management on
    the site. SHOS has maintained throughout the history of this matter that the
    wetlands areas on the property, essentially bowl-like depressions in the middle
    of the site, not only absorb all of the site's stormwater runoff but also runoff
    from neighboring properties resulting from the natural topography of the area.
    SHOS's members, several of whose backyards abut the site, contend nearby
    basements and backyards will be flooded unless Square Properties ensures its
    development of the site continues the vitally important function the existing
    wetlands currently provide for stormwater management in the surrounding
    area.
    The heart of the dispute concerns Square Properties' use of the GSR-32
    methodology to calculate groundwater recharge. Square Properties sought a
    GP6 permit issued under the authority of the Freshwater Wetlands Protection
    Act, N.J.S.A. 13:9B-1 to -30, and its implementing regulations, N.J.A.C. 7:7A-
    A-3072-16T2
    4
    1.1 to -22.20, to disturb less than one acre of isolated freshwater wetlands.
    N.J.A.C. 7:7A-5.6(a).1 The parties agree Square Properties' proposed shopping
    center qualifies as a "major development" under N.J.A.C. 7:8-1.2, and thus is
    required to "comply in its entirety with the Stormwater Management Rules at
    N.J.A.C. 7:8."   N.J.A.C. 7:7A-4.3(b)10.    In order to satisfy the minimum
    design and performance standards for groundwater recharge in accordance
    with N.J.A.C. 7:8-5.4, Square Properties elected to "[d]emonstrate through
    hydrologic and hydraulic analysis that the site and its stormwater management
    measures maintain 100 percent of the average annual pre-construction
    groundwater recharge volume for the site." N.J.A.C. 7:8-5.4(a)2(i)(1).
    Square Properties used the GSR-32 methodology to calculate pre-
    construction groundwater recharge volume for the site. In its comments to the
    Department on behalf of SHOS, Princeton Hydro objected to use of the GSR-
    32 methodology on two bases.      First, it noted the New Jersey Geological
    Survey Report establishing the GSR-32 methodology states that wetlands were
    "eliminated from the analysis . . . because the direction of flow between
    ground-water and surface water or wetlands depends on site specific factors
    1
    After the permit in this case was issued, the Department renumbered the
    relevant regulations, 49 N.J.R. 3849(a) (Dec. 18, 2017). The parties have
    referenced the regulatory numbers in effect when the Department approved the
    permit. We do the same.
    A-3072-16T2
    5
    and can also change seasonally." Emanuel G. Charles, et al., New Jersey
    Geological Survey Report GSR-32: A Method for Evaluating Ground-Water-
    Recharge Areas in New Jersey, N.J. Dep't of Envtl. Prot. & Energy, Div. of
    Sci.             &               Research,                 6              (1993),
    https://www.nj.gov/dep/njgs/pricelst/gsreport/gsr32.pdf.       The Report states
    that "[r]echarge (or discharge) from surface-water bodies, wetlands and hydric
    soils are not evaluated using the method. These areas are eliminated from the
    assessment." 
    Id. at 1.
    The Geological Survey Report explains that "[w]hether a wetland or
    surface-water body recharges ground water or receives discharge from ground
    water depends on the relative levels of the water table and the surface water
    and on the degree of interconnection between them." 
    Id. at 92.
    Thus, one
    assumption limiting the accuracy of all recharge values generated by the GSR-
    32 methodology is that "[t]here is no addition (recharge) or subtraction
    (discharge) of ground water from surface-water bodies and wet areas." 
    Id. at 44.
    The Report concludes:
    From the standpoint of a soil-water balance model
    used in this report, the fact that the recharge or
    discharge status of the wetlands does not depend on
    the factors used in the recharge simulations precludes
    the use of the model to quantify any recharge they
    may supply. Other modeling methods exist that can
    simulate recharge from surface water.
    A-3072-16T2
    6
    [Id. at 94 (emphasis added).]
    Second, Princeton Hydro maintained that 4.14 of the site's 4.8 acres
    drain to "isolated and perched wetland systems located in closed depressions,"
    and as a result, "rainfall and runoff which flows into these areas c an only
    become groundwater recharge or potentially evapotranspiration." 2 Because of
    those site specific conditions, it contended Square Properties' "pre-
    development groundwater recharge analysis significantly under predicts the
    existing conditions at the site and consequently under predicts the potential
    post development deficit."
    The Department apparently agreed in 2013 that use of the GSR-32
    methodology was inappropriate. It wrote to Square Properties in August of
    that year, advising its application failed to meet the Department's Stormwater
    Management Rules at N.J.A.C. 7:8, and specifically noted the following:
    Groundwater Recharge: The presence of hydric soils
    (Othello) onsite precludes the use of GSR-32 in
    determining recharge. There is a certain amount of
    recharge occurring through the isolated wetland areas
    but this classification under GSR-32 yields zero
    recharge. Therefore, the spreadsheet underestimates
    recharge under existing conditions and consequently a
    2
    The Geological Survey Report states "[e]vapotranspiration refers to water
    that is returned to the atmosphere from vegetated areas by evaporation from
    the soil and plant surfaces (dew and rain) and soil water that is taken up by
    plant roots and transpired through leaves or needles. Infiltrated water that is
    not returned to the atmosphere . . . becomes ground water." GSR-32 at 3.
    A-3072-16T2
    7
    lower post development deficit.     Please see the
    relevant public comments from Princeton Hydro
    representing "Save Hamilton Open Space."
    Square Properties responded the following October by explaining that
    the Geological Survey Report establishing the GSR-32 methodology "does not
    establish recharge rates for approximately 75 different hydric soils," among
    them Othello in Hydrologic Group D, which was identified on site.               It
    explained that it substituted Holyoke, another soil in Hydrologic Group D,
    which is included in the Groundwater Recharge Spreadsheet database, based
    on the recommendation in the New Jersey Stormwater Best Management
    Practices Manual that "where a soil series identified at a land development site
    has not been included . . . the user should select a similar soil series from the
    program's database." Sandra A. Blick, et al., New Jersey Stormwater Best
    Management Practices Manual (hereinafter, Stormwater BMP Manual), N.J.
    Dep't         of       Envtl.       Prot.,       6-15        (Apr.        2004),
    https://njstormwater.org/bmp_manual/NJ_SWBMP_6%20print.pdf.              Square
    Properties contended that by replacing Holyoke for Othello in the spreadsheet,
    the annual recharge deficit was increased by approximately thirty-two percent,
    which was acceptable because of the size of the proposed subsurface basin.
    Princeton Hydro responded in March 2014, stating:
    The GSR-32 analysis has been revised substituting the
    Othello soil unit with the Holyoke series (non-hydric).
    A-3072-16T2
    8
    However, the revised analysis does not address our
    comment that due to the site's unique topography, all
    rainfall must either become groundwater recharge or
    evapotranspiration. As such the calculated 13 in/yr
    [recharge] is likely a gross underestimation of the
    annual recharge capacity of the property. It is herein
    reiterated that the NJGS documentation for the GSR-
    32 analysis indicates that this application of the
    analysis is beyond the scope of the original GSR-32
    method.
    It also noted that Square Properties' assertion that the proposed size of the
    infiltration basin as meeting the requirements of the GSR-32 analysis was
    refuted in any event by the applicant's revised groundwater mounding
    analysis.3
    Specifically, Princeton Hydro contended the applicant's revised
    mounding analysis used a hydraulic conductivity figure in its calculations
    based on test pits, the location of which do not appear on the revised utility
    plan.    Further, the tested elevations did not correspond with the proposed
    bottom elevation of the stormwater systems and the soil logs suggested the
    facilities might be located "in fine grained material that is expected to have a
    3
    Square Properties' expert defined groundwater mounding as the increase in
    the groundwater elevation as a result of the infiltration from the proposed
    stormwater management facilities. The applicant performed a groundwater
    mounding analysis "to evaluate the groundwater mounding expected to result
    from an underground stormwater infiltration basin, two (2) dry wells, a
    bioretention swale, and a detention basin[,] . . . and to determine whether the
    increased groundwater elevations will adversely impact nearby underground
    structures, including basements."
    A-3072-16T2
    9
    hydraulic conductivity level that is orders of magnitude lower than what is
    assumed in [Square Properties'] analysis." Princeton Hydro also maintained
    the "HydroCAD calculations use an infiltration rate that is not consistent with
    the measured testing," suggesting the soil testing had not been conducted in
    compliance with the Stormwater BMP Manual.
    Finally, Princeton Hydro asserted the applicant's mounding analysis "has
    (apparently unknowingly) determined that during the 100 year storm4 the
    infiltration basin will fail due to mounding." Princeton Hydro asserted that
    failure should also be expected in much smaller storms, and would result in
    outflow from the site at rates "obviously . . . in excess of the current conditions
    where there is no outflow observed due to the unique existing topography."
    Princeton Hydro noted the revised plan did not reflect the impact of off -site
    contributory drainage flowing onto the site from neighboring properties. It
    concluded by noting that:
    the site in its current condition is providing valuable
    water quality, recharge, and volume control benefits.
    The proposed design will eliminate this functionality
    and jeopardize the ability of the proposed system to
    4
    See Am. Cyanamid Co. v. State, Dep't of Envtl. Prot., 
    231 N.J. Super. 292
    ,
    299-300 (App. Div. 1989) (explaining "the 100-year storm is not based on any
    actual storm" but is instead "a theoretical storm constructed . . . using
    mathematical models" to mimic "a storm of a size that is expected to occur
    once a century or have a one percent chance of occurring in any one year"
    (citing N.J.A.C. 7:13-1.2)).
    A-3072-16T2
    10
    perform these functions for runoff originating within
    the property boundaries as is further detailed in this
    letter.
    Square Properties responded to the Department that Princeton Hydro
    "agrees . . . that the infiltration basin meets the recharge requirements for the
    site in accordance with GSR-32." As to Princeton Hydro's comment that the
    GSR-32 methodology was not suitable for the site, Square Properties simply
    reiterated its assertion that it relied on the recommendation in the instructions
    for the Groundwater Recharge Spreadsheet to substitute soils when the soil
    identified on site was not included in the database.
    Princeton Hydro responded to those comments in July 2014, stating:
    1.   The annual recharge estimate is still low. Due to
    the site's unique closed depression topography all
    rainfall (~45 in/yr) must either become recharge
    or be evapotranspired by vegetation. As outlined
    in the GSR-32 documentation, a closed
    depression is out of the scope of the simple
    spreadsheet analysis.       From a hydrologic
    perspective the represented 13 in/yr of recharge is
    too low. It is our strong professional opinion that
    this is a gross underestimate of existing
    conditions;
    2.   With respect to the mounding analysis, the
    applicant's professional now contends that the
    mound will intercept the basin bottom, as
    previously stated by Princeton Hydro, but
    insist[s] that it will not influence the operation of
    the basin. The mound is not shy of the basin
    bottom; it is three feet higher according to the
    calculations. It is Princeton Hydro's professional
    A-3072-16T2
    11
    opinion that the mound will definitely impact the
    functioning of the proposed basin[.]
    In a third point, Princeton Hydro noted the Stormwater Management Rule,
    N.J.A.C. 7:8-5.3, and the Stormwater BMP Manual placed "great value on
    natural systems that provide stormwater management services," and asserted
    the applicant's proposed filling of the wetlands resource was not consistent
    with the Rule.
    In response, Square Properties provided the Department with yet another
    Groundwater Recharge Spreadsheet in September 2014, this one substituting
    "gravel pits," having an annual recharge of 15.9 inches, the highest annual
    recharge specified in the spreadsheet reference table, for the Othello soil
    identified on site. It did not respond to Princeton Hydro's assertion that all
    forty-five inches of annual rainfall on the site, due to its "unique closed
    depression topography," must either become recharge or be evapotranspired,
    rendering the site outside "the scope of the simple spreadsheet analysis." As to
    the comments regarding the mounding analysis, Square Properties asserted the
    groundwater mound was limited to the area within the subsurface infiltration
    basin and the average groundwater elevation is still below the bottom of the
    basin.
    The Department contacted Princeton Hydro within weeks seeking its
    response.     The Department's reviewing environmental engineer asked the
    A-3072-16T2
    12
    engineer at Princeton Hydro for "a list of all outstanding issues that have not
    been resolved." Noting "[w]e have had so many issues raised, commented,
    debated, answered and re-commented on this application," he stated Princeton
    Hydro's list "will be the basis going forward," which the Department would
    review and then "make a decision on the application."        Princeton Hydro
    apologized for the delay in responding, said they would be "in touch," were
    "doing [their] best to keep up with multiple demand[s]" and "[i]n the
    meantime, our many prior review letters should be helpful for you to assess if
    the application is compliant with N.J.A.C. 7:8."
    Princeton Hydro did not make any further response while the permit
    application was pending. Although Square Properties made further revisions
    to their plans, which were reviewed and commented on by the Department,
    neither entity copied SHOS or Princeton Hydro on any of their exchanges.
    This notwithstanding the several prior letters in the Department's file from
    SHOS's counsel, the most recent being from August 29, 2014, reminding of the
    underlying settlement agreement and asking "that the Department, Applicant
    and its consultants continue to provide the undersigned with copies of any and
    all documents and materials contemporaneous with their submission/mailing."
    The Department continued to communicate with Square Properties,
    requiring it to account for off-site runoff, including from nearby homes, and
    A-3072-16T2
    13
    submit an updated mounding analysis. The Department noted that mounded
    water would partially rise into the infiltration basin at the peak of the 100 -year
    storm, and that Princeton Hydro disputed the applicant's representation that the
    basin would continue to function as designed "because only some cells in the
    basin are affected." The Department also noted the mounding analysis showed
    increased ground water elevations of .3 feet for nearby homes, which the
    applicant contended was negligible as the existing ground water level was
    more than seven feet below grade.
    In December 2015, the Department's reviewing environmental engineer
    completed a four-page summary engineering report of the application. The
    report noted the heavily wooded site "collects off-site contributory drainage"
    from two lots and several nearby homes, which "has been included in the
    analysis." The report confirmed that there was no runoff leaving the site, as
    "all stormwater runoff is either absorbed into the two wetland areas or
    evaporates."
    The report stated the applicant's submitted calculations and stormwater
    report demonstrated that the dry wells, bio-retention swale and infiltration
    basins together would "retain and infiltrate all storms up to and including th e
    100-year storm, thus satisfying requirements under N.J.A.C. 7:8-5.4."
    Although noting Princeton Hydro "questioned the suitability of NJGSR-32
    A-3072-16T2
    14
    spreadsheet to model hydric soils onsite; applicant's engineer (RBS
    Engineering) submitted NJGSR-32 spreadsheet analyzing the recharge using
    both Othello and Holyoke soils to show that the proposed infiltration basin's
    capacity exceeds the recharge deficit by a wide margin."
    As to the groundwater mounding analysis, the report noted the
    applicant's engineer's submitted calculations showing the maximum water
    surface level in the basin for the 100-year storm is approximately one foot
    below the emergency outlet elevation, precluding any discharge.            And,
    assuming the basements of nearby homes are no more than seven feet below
    grade, the applicant's ground water mounding analysis showed that the highest,
    estimated ground water elevations will be half-a-foot or more below those
    basement floors.
    The Department issued the GP6 permit in December 2015. SHOS timely
    challenged the permit and requested a hearing.         Relying on comments
    presented to the Department by Princeton Hydro, SHOS reiterated its assertion
    that application of the GSR-32 methodology was inappropriate and grossly
    underestimated annual recharge. SHOS noted that Square Properties' engineer
    confirmed "the site does not produce any surface runoff and . . . also collects
    and provides direct volume control and groundwater recharge of runoff
    generated from off-site areas." Notwithstanding, the applicant's groundwater
    A-3072-16T2
    15
    recharge analysis "suggests that only thirty-percent (30%) of the on-site annual
    rainfall, all of which is captured by the existing closed depressions will
    become recharge."     SHOS also maintained Square Properties' groundwater
    recharge analysis was "in direct conflict with the documented understanding of
    the site's hydrology" and its "mounding analysis fails to accurately reflect the
    proposed design and intended function of the infiltration basin."
    The Commissioner issued an order upholding the permit and denying
    SHOS's request for a hearing, finding no statutory right or any particularized
    property interest entitling SHOS to an adjudicatory-type hearing. As to the
    merits, the Commissioner noted that under N.J.A.C. 7:8-5.4(a)(3), Square
    Properties "was required to show that no runoff would leave the [p]roperty
    post-construction."   Addressing SHOS's contention that Square Properties
    underestimated the pre-construction recharge volume because the property
    experiences approximately forty-five inches of rain annually and Square
    Properties calculated it recharges between "10 and 13 inches, depending on the
    soil type selected for the areas of Othello soil," the Commissioner stated "[t]he
    method Square Properties used to calculate recharge is expressly allowed by
    the Department's rules, see N.J.A.C. 7:8-5.6(b), and SHOS has not provided an
    alternative method for calculating a more appropriate pre-construction
    recharge volume."
    A-3072-16T2
    16
    The Commissioner further noted that "even if the recharge analysis . . .
    underestimated the pre-construction recharge volume," Square Properties'
    separate stormwater analysis "supports the conclusion that, since all
    stormwater is retained onsite both pre- and post-construction, the appropriate
    groundwater recharge volume is likewise maintained as required by N.J.A.C.
    7:8-5.4(a)(2)(i)(1)."   Thus, while concluding "the analysis used by Square
    Properties was appropriate under these circumstances, the Commissioner found
    the stormwater analysis provides additional support for the Department's
    conclusion that the recharge requirement was satisfied."
    Finally, the Commissioner found the agency's conclusion that Square
    Properties had demonstrated the maximum water level during the 100-year
    storm would be a foot below the emergency overflow drain, thus precluding
    any discharge, was reasonable and supported by the record.                  The
    Commissioner rejected SHOS's contention that Square Properties' own
    mounding analysis demonstrated the infiltration basin would fail in a 100 -year
    storm because groundwater would rise above the bottom of the basin resulting
    in overflow. Instead, the Commissioner accepted Square Properties' assertion
    that its mounding analysis "showed that groundwater would rise above only
    A-3072-16T2
    17
    half of the twenty 'cells' [5] in the infiltration basin," leaving the other ten
    functioning and keeping the groundwater level from reaching the emergency
    overflow drain.      SHOS appeals, reprising the arguments it made to the
    Commissioner.
    Our assessment of the Commissioner's decision is governed by a familiar
    standard of review. "An appellate court reviews a final agency decision with
    deference, and will not reverse the ultimate determination of an agency unless
    the court concludes that it was 'arbitrary, capricious or unreasonable, or that it
    lacked fair support in the evidence, or that it violated legislative policies'
    expressed or implied in the act governing the agency."          In re Freshwater
    Wetlands Gen. Permit No. 16, 
    379 N.J. Super. 331
    , 341 (App. Div. 2005)
    (quoting Campbell v. Dep't of Civil Serv., 
    39 N.J. 556
    , 562 (1963)). Our
    traditional deference to an agency's "specialized expertise," In re Freshwater
    Wetlands Prot. Act Rules, 
    180 N.J. 478
    , 489 (2004), "is even stronger when
    the agency, like DEP in regard to wetlands, 'has been delegated discretion to
    determine the specialized and technical procedures for its tasks,'" In re
    Freshwater Wetlands Gen. Permits, 
    372 N.J. Super. 578
    , 593 (App. Div. 2004)
    (quoting City of Newark v. Nat. Res. Council, Dep't of Envtl. Prot., 
    82 N.J. 530
    , 540 (1980)).       Importantly, however, "[w]hile we must defer to the
    5
    Each "cell" is a 30-foot by 30-foot area of the property.
    A-3072-16T2
    18
    agency's expertise, we need not surrender to it." N.J. Chapter of Nat'l Ass'n of
    Indus. & Office Parks v. N.J. Dep't of Envtl. Prot., 
    241 N.J. Super. 145
    , 165
    (App. Div. 1990) (finding there was "simply nothing in this record to indicate
    why or how the DEP chose that [7:1] ratio for enhancement mitigation
    purposes").
    We also extend substantial deference to an agency's interpretation of its
    own regulations, reasoning that "the agency that drafted and promulgated the
    rule should know the meaning of that rule." In re Gen. Permit No. 16, 379 N.J.
    Super. at 341-42 (quoting Essex Cty. Bd. of Taxation v. Twp. of Caldwell, 
    21 N.J. Tax 188
    , 197 (App. Div. 2003)). Of course, "an agency may not use its
    power to interpret its own regulations as a means of amending those
    regulations or adopting new regulations." 
    Id. at 342
    (quoting Venuti v. Cape
    May Cty. Constr. Bd. of Appeals, 
    231 N.J. Super. 546
    , 554 (App. Div. 1989)).
    And because a permitting decision by the Department is a quasi-judicial
    determination, reasoned fact-finding is essential. In re Freshwater Wetlands
    Gen. 
    Permits, 372 N.J. Super. at 594
    . As Judge Conley explained in another
    case challenging the issuance of a GP6 permit:
    [N]o matter how great a deference the court is
    obliged to accord the administrative determination
    which it is being called upon to review, it has no
    capacity to review at all unless there is some kind of
    reasonable factual record developed by the
    A-3072-16T2
    19
    administrative agency and the agency has stated its
    reasons grounded in that record for its action.
    [Id. at 595 (alteration in original) (quoting State v.
    Atley, 
    157 N.J. Super. 157
    , 163 (App. Div. 1978)).]
    Applying those standards here makes obvious to us the Department's
    issuance of the GP6 permit to Square Properties should be vacated. We can
    discern no reason for the Commissioner's conclusion that "[t]he method Square
    Properties used to calculate recharge is expressly allowed by the Department's
    rules." Indeed, the opposite would appear to be true. N.J.A.C. 7:8-5.6(b), the
    regulation the Commissioner cited in support of that statement, provides only
    that groundwater recharge "may" be calculated in accordance with the GSR-32
    methodology.6 But as the record appears to make abundantly clear, and as the
    agency itself concluded in 2013, the Geological Survey Report establishing the
    GSR-32 methodology "precludes the use of GSR-32 in determining recharge"
    for this site because of the presence of wetlands. See GSR-32 at 94.
    6
    Compare N.J.A.C. 7:8-5.6(a), which provides stormwater runoff "shall" be
    calculated in accordance with the USDA Natural Resources Conservation
    Service methodology, or the Rational Method for peak flow and the Modified
    Rational Method for hydrograph computations. The agency's choice of the
    permissive "may" for calculation of groundwater recharge in accordance with
    the GSR-32 methodology, plainly signals other alternatives, see N.J. Dep't of
    Envtl. Prot. v. Alloway Twp., 
    438 N.J. Super. 501
    , 512 (App. Div. 2015)
    (noting the "bedrock assumption" that statutory language is not meaningless or
    unnecessary), presumably in recognition of the expressed limitations of the
    GSR-32 methodology.
    A-3072-16T2
    20
    The Department, echoed by Square Properties, argues to us that because
    the Geological Survey Report "says that hydric soils are frequently in
    wetlands, have 'undetermined recharge value,' and are assigned a 'recharge
    value of zero,'" 7 that "Square Properties thus proceeded as allowed by the duly-
    promulgated GSR-32 Method."          The Department, however, provides no
    authority for that conclusion, and we can find none.
    Nowhere in the Geological Survey Report does it state that the GSR-32
    methodology can be used to calculate the recharge value of wetlands simply by
    assigning them a recharge value of zero as the Department asserts. Rather, the
    7
    The Department cites only the soil matrix in Appendix 5 of the Geological
    Survey Report, "Recharge Factors and Constants by Soil Series," which
    assigns a zero recharge factor for hydric soils such as Othello. It does not
    address the explanation provided in Appendix 7, "Development and
    Application of the Soil-Water Budget to the Method," for why those zero
    values for hydric soils were included in the Appendix 5 soil matrix, namely,
    that "[t]o include all 252 soil units [imported from the Soil Conservation
    Service's New Jersey soils database] in appendix 5, R-factor and R-constant
    values that yield zero-recharge were also included in appendix 5 for hydric
    soils (75)" not among the 159 soil units simulated. It also does not address
    Appendix 7's statement that hydric soils were assigned a recharge value of zero
    for use in Appendices 3 ("Recharge Soil Group by Soil Unit"), 4 ("Recharge
    Constants and Factors by Recharge Soil Group") and 5, but eliminated from
    the list of those slated for recharge analysis. Thus review of that explanation
    and those appendices would appear to make clear that hydric soils were
    assigned a zero value only to permit their inclusion in the list of all known
    New Jersey soils included in the soil databases, i.e., soil groups, units and
    series tables, not for actual use in calculating recharge using the GSR-32
    groundwater recharge methodology, which the Report makes clear cannot be
    used to calculate the recharge value of wetlands.
    A-3072-16T2
    21
    Report devotes an entire appendix to explaining why "the recharge or
    discharge status of wetlands does not depend on the factors used in the
    recharge simulations" forming the basis of the GSR-32 method, thus
    "preclud[ing] the use of the model to quantify any recharge they may supply."
    Far from providing, as respondents assert, that the GSR-32 model can reliably
    compute the recharge value of wetlands, the Report, adopted at N.J.A.C. 7:8 -
    5.6(b), appears to explain why the GSR-32 methodology would be unreliable
    and its use thus precluded for that task. Nowhere does the Geological Survey
    Report suggest how the GSR-32 methodology might be modified to calculate
    the recharge values of wetlands. Instead, the Report states "[o]ther modeling
    methods exist that can simulate recharge from surface water." GSR-32 at 94.
    Further, the Commissioner does not explain why the agency concluded
    in 2013 that "[t]he presence of hydric soils (Othello) onsite precludes the use
    of GSR-32 in determining recharge," yet approved the applicant's use of the
    method when it issued the GP6 permit in 2015. The December 2015 four-page
    engineering summary report, on which the Commissioner relied, notes SHOS's
    objection to use of the GSR-32 methodology, but does not explain why its use
    is permitted by the regulations.   Instead, the report merely states that the
    applicant submitted a GSR-32 spreadsheet "analyzing the recharge using both
    A-3072-16T2
    22
    Othello and Holyoke soils to show that the proposed infiltration basin's
    capacity exceeds the recharge deficit by a wide margin."
    In its brief on appeal, the Department concedes that SHOS's assertion
    "that determining if wetlands are recharge or discharge areas, or neither, is
    beyond the scope of the GSR-32 method . . . . is literally accurate." It insists,
    however, that SHOS "misses the point that Square Properties agreed to
    substitute soil, pursuant to the [Stormwater BMP Manual]."
    The Stormwater BMP Manual instructs users completing the Microsoft
    Excel-based Annual Recharge worksheet to estimate recharge under both pre-
    and post-development site conditions that
    [a]t the time of the [New Jersey Groundwater
    Recharge Spreadsheet's] development, all soil series
    mapped in New Jersey were included in its databases.
    Nevertheless, instances may arise where a soil series
    identified at a land development site has not been
    included. In such instances, the user should select a
    similar soil series from the program's database.
    [Stormwater BMP Manual at 6-15.]
    The Manual makes plain, however, that the spreadsheet is based on the
    Geological Survey Report and "[a]ll pertinent GSR-32 databases and
    computational algorithms have been incorporated," and thus the spreadsheet
    "is governed, in part, by the assumptions and limitations of GSR-32." 
    Id. at 6-
    5. Accordingly, if the presence of wetlands on site would preclude use of the
    A-3072-16T2
    23
    GSR-32 methodology, use of the Groundwater Recharge Spreadsheet would
    appear likewise precluded. Neither the Commissioner in his decision nor the
    Department in its brief explains how the Stormwater BMP Manual's instruction
    to users to select a similar soil series from the program's database when the
    identified soil is not included permits an applicant to rely on the GSR-32
    methodology to calculate the recharge value of wetlands on a site. 8 But see In
    re Petition of Elizabethtown Water Co., 
    107 N.J. 440
    , 460 (1987) (stating
    "grounds upon which an administrative order must be judged are those upon
    which the record discloses that the action was based" and not upon an after -
    the-fact explanation) (quoting Sec. & Exch. Comm'n v. Chenery Corp., 
    318 U.S. 80
    , 87 (1943)). See also In re N.J.A.C. 7:1B-1.1 Et Seq., 
    431 N.J. Super. 100
    , 139 (App. Div. 2013) (stating "[a]n appellate brief is no place for an
    agency to try and rehabilitate [the agency's] actions").
    8
    In support of its substitution of Holyoke for Othello in the Groundwater
    Recharge Spreadsheet, Square Properties noted the Geological Survey Report
    "defin[ing] methods for evaluating groundwater recharge in New Jersey . . .
    does not establish recharge rates for approximately 75 different hydric soils,"
    and the Stormwater BMP Manual "recommends the user select an alternate but
    similar soil type in the spreadsheet analysis when the identified soil type is not
    included." As we noted, the Manual states "all soil series mapped in New
    Jersey" at the time the Spreadsheet was developed were included in its
    databases. Stormwater BMP Manual at 6-15. It would be difficult to conclude
    the Manual intends by that remark to instruct the user to substitute a soil typ e
    deliberately not mapped as part of the GSR-32 methodology for use in the
    spreadsheet, especially in light of its incorporation of "[a]ll pertinent GSR -32
    databases and computational algorithms." 
    Id. at 6-
    5.
    A-3072-16T2
    24
    Although the Commissioner concluded that even if the recharge analysis
    "underestimated the pre-construction recharge volume," Square Properties'
    separate stormwater analysis "further supports the conclusion that, since all
    stormwater is retained onsite both pre- and post-construction, the appropriate
    groundwater recharge volume is likewise maintained as required by N.J.A.C.
    7:8-5.4(a)(2)(i)(1)."   As underestimating pre-construction recharge volume
    would consequently appear to result in underestimating the potential post -
    construction deficit, and thus whether the project can meet required peak flow
    rate reduction consistent with containing all stormwater on site post -
    construction, we do not follow the Commissioner's logic. Underestimating
    pre-construction recharge volume would appear to render all the other
    calculations that depend on its accuracy, including the groundwater mounding
    analysis, suspect. A stormwater analysis based on underestimated existing
    conditions would appear likely to compound the error, not counteract it.
    A state agency rendering a final agency decision must explain the
    specific reasons for its determination. See In re Freshwater Wetlands Gen.
    
    Permits, 372 N.J. Super. at 580
    . We cannot give deference to an agency's
    factfinding unless we have "confidence that there has been a careful
    consideration of the facts in issue and appropriate findings addressing the
    critical issues in dispute." Bailey v. Bd. of Review, 
    339 N.J. Super. 29
    , 33
    A-3072-16T2
    25
    (App. Div. 2001).      The Supreme Court recently addressed the issue of
    administrative fact-finding, stating that "[a] lack of fair support is
    demonstrated by the decisionmaker's 'failure to consider all the evidence in a
    record,' or the 'complete misperception of the facts submitted in a record.'" US
    Masters Residential Prop. (USA) Fund v. N.J. Dep't of Envtl. Prot., ___ N.J.
    ___, ___ (2019) (slip op. at 29) (citations omitted).
    "The requirement of findings is far from a technicality and is a matter of
    substance. It . . . is a fundamental of fair play that an administrative judgment
    express a reasoned conclusion. A conclusion requires evidence to support it
    and findings of appropriate definiteness to express it." N.J. Bell Tel. Co. v.
    Commc'ns Workers of Am., 
    5 N.J. 354
    , 375 (1950) (citation omitted).
    "[F]indings of fact [must] be sufficiently specific under the circumstances of
    the particular case to enable the reviewing court to intelligently review an
    administrative decision and ascertain if the facts upon which the order is based
    afford a reasonable basis for such order." 
    Id. at 377.
    "When an agency's
    decision is not accompanied by the necessary findings of fact, the usual
    remedy is to remand the matter to the agency to correct the deficiency." In re
    Issuance of a Permit by Dep't of Envtl. Prot. to Ciba-Geigy Corp., 
    120 N.J. 164
    , 173 (1990); see In re State & Sch. Emps.' Health Benefits Comm'ns'
    Implementation of I/M/O Yucht, 
    233 N.J. 267
    , 280 (2018).
    A-3072-16T2
    26
    Because it is not possible on this record to determine why the
    Commissioner concluded Square Properties' use of the GSR-32 methodology
    to calculate groundwater recharge was consonant with the Department's
    regulations, we vacate the permit and remand for further fact-finding. In doing
    so, we note the Commissioner's failure to also address whether site specific
    factors, in addition to the expressed limitations of the GSR-32 model, required
    the applicant to use a different model to calculate recharge. 9      If it is the
    Department's position that the GSR-32 methodology can be used to calculate
    groundwater recharge on a site where wetlands are present, notwithstanding
    the Geological Survey Report's statement precluding use of the GSR-32
    methodology to quantify recharge of wetlands, it should also address why that
    conclusion is permissible in the absence of formal rulemaking. 10 See In re
    Authorization for Freshwater Wetlands Statewide Gen. Permit 6, 433 N.J.
    Super. 385, 413-15 (App. Div. 2013).
    9
    Although the Commissioner in his decision stated that SHOS had not
    "provided an alternative method for calculating a more appropriate pre -
    construction recharge volume," such was not its burden. See Tanurb v. N.J.
    Dep't of Envtl. Prot., 
    363 N.J. Super. 492
    , 503 (App. Div. 2008). SHOS,
    however, insists in its brief that it suggested a water-budget for the site would
    be an appropriate alternative.
    10
    We note in this regard that the Department in its brief did not respond to
    SHOS's allegation that the Department has never previously permitted use of
    the GSR-32 methodology to calculate groundwater recharge in such cases.
    A-3072-16T2
    27
    The Commissioner also fails to explain adequately his conclusion that
    the applicant's mounding analysis satisfactorily demonstrated compliance with
    the runoff quantity requirements under N.J.A.C. 7:8-5.4(a)(3), in light of
    Princeton Hydro's calculations showing the infiltration basis would fail in a
    100-year storm. Although we have no hesitation in finding SHOS has no right
    to an adjudicatory hearing, we note that whether a third-party objector's due
    process rights may be satisfied by an agency's review process depends in
    significant part on the objector's ability to participate in the process . See In re
    Freshwater Wetlands Statewide Gen. 
    Permits, 185 N.J. at 471-74
    .
    We have neither the need nor the ability to resolve SHOS's claim that it
    was shut out of the agency review process in 2014. We note only that SHOS
    provided extensive comments through several years and that the permit was
    issued without a number of its well-documented concerns being substantively
    addressed. SHOS had a right to submit its arguments, views and data relevant
    to the permit to the Department through Princeton Hydro.             See N.J.S.A.
    52:14B-3.1(a). The Department likewise had an obligation to consider the
    submissions and "to make findings of fact and conclusions of law regarding
    those comments." Rinaldo v. RLR Inv., LLC, 
    387 N.J. Super. 387
    , 401-02
    (App. Div. 2006); see N.J.S.A. 13:9B-9. In light of our remand for further
    fact-finding and SHOS's inability to comment on the applicant's last plan
    A-3072-16T2
    28
    revisions, we recommend the record be re-opened to permit SHOS to provide
    its comments on those plans to the agency.
    We vacate the issuance of the GP6 permit and remand for further fact-
    finding consistent with this opinion. We affirm the Commissioner's decision
    that SHOS is not entitled to an adjudicatory hearing.    We do not retain
    jurisdiction.
    Affirmed in part, reversed in part.
    A-3072-16T2
    29