Highlands at Jordanelle, LLC v. Wasatch County , 355 P.3d 1047 ( 2015 )


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    2015 UT App 173
    _________________________________________________________
    THE UTAH COURT OF APPEALS
    HIGHLANDS AT JORDANELLE, LLC,
    Plaintiff, Appellee, and Cross-appellant,
    v.
    WASATCH COUNTY AND WASATCH COUNTY FIRE PROTECTION
    SPECIAL SERVICE DISTRICT,
    Defendants, Appellants, and Cross-appellees.
    MUSTANG DEVELOPMENT, LLC, ET AL.,
    Plaintiffs, Appellees, and Cross-appellants,
    v.
    WASATCH COUNTY FIRE PROTECTION SPECIAL SERVICE DISTRICT,
    Defendant, Appellant, and Cross-appellee.
    Opinion
    No. 20130445-CA
    Filed July 9, 2015
    Fourth District Court, Heber Department
    The Honorable Fred D. Howard
    No. 080500390
    Barton H. Kunz II, Tyler V. Snow, Joseph A. Gatton
    and Scott H. Sweat, Attorneys for Appellant
    Wasatch County
    Joseph E. Tesch and Stephanie K. Matsumura,
    Attorneys for Appellant Wasatch County Fire
    Protection Special Service District
    Matthew C. Barneck and Chad E. Funk, Attorneys
    for Appellees Highlands at Jordanelle, LLC,
    Mustang Development, LLC, et al.
    Gavin J. Anderson, Kelly W. Wright, and Bradley
    C. Johnson, Attorneys for Amicus Curiae Utah
    Association of Counties
    Highlands at Jordanelle v. Wasatch County
    JUDGE GREGORY K. ORME authored this Opinion, in which JUDGES
    JAMES Z. DAVIS and J. FREDERIC VOROS JR. concurred.
    ORME, Judge:
    ¶1     Wasatch County (the County) and the Wasatch County Fire
    Protection Special Service District (the Fire District) appeal the trial
    court’s determination that, among other things, the County and the
    Fire District must refund fire-protection service fees to certain
    landowners. Because we determine that at least some of the service
    fees were reasonable, we affirm in part, reverse in part, and
    remand to the trial court for further proceedings consistent with
    this opinion.
    BACKGROUND1
    ¶2     The Jordanelle Reservoir, located in rural Wasatch County,
    was completed in 1995. Landowners wanted to take advantage of
    their newly created lakefront property but were stymied by dated
    zoning regulations that permitted only one farmhouse per 160
    acres. In response, the Wasatch County Commission passed a
    resolution that allowed developers to seek a higher building
    density by applying for a “density determination.” Once the
    County made a density determination, it would grant the
    1. The trial court’s final determination of the issues raised in this
    appeal resulted from a series of motions and a two-day evidentiary
    hearing. Where the trial court granted motions for summary
    judgment, we will recite the facts relevant to those motions in the
    light most favorable to the nonmoving party. See Orvis v. Johnson,
    
    2008 UT 2
    , ¶ 6, 
    177 P.3d 600
    . Where the trial court resolved
    disputed issues following the receipt of evidence, we will recite the
    facts in the light most favorable to the trial court’s findings. See Bel
    Courtyard Invs., Inc. v. Wolfe, 
    2013 UT App 217
    , ¶ 2 n.1, 
    310 P.3d 747
    .
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    Highlands at Jordanelle v. Wasatch County
    landowners the right to build multiple equivalent residential units
    (ERUs) on their property. But because the Jordanelle Reservoir was
    far from any existing fire stations, the County also determined that
    the developers should pay additional fire-protection service fees to
    build an adequate fire station in the area.2
    ¶3     The Wasatch County Commissioners,3 acting as the board of
    the Fire District, then passed Resolution 99-3, which authorized the
    Fire District to charge a monthly fee of $14.81 per ERU. Once
    landowners had their ERU determination, they were required to
    pay the monthly fee whether they started construction on the
    property or not. For example, Highlands at Jordanelle, LLC, the
    original plaintiff in this case, received a density determination of
    376 ERUs. It was therefore required to pay $14.81 per ERU, a total
    of $5,568.56 per month, from that point forward.
    ¶4     To pay down the construction bond for the new fire station
    in the Jordanelle area, the Fire District charged additional fees,
    which it characterized as “lump-sum fees” or “bond buy-in fees.”
    The County originally paid for the new fire station and related
    equipment, and the Fire District subleased it from the County. In
    2002, the Fire District refinanced the sublease through a twenty-
    year bond.
    ¶5     In 2008, Highlands brought suit against the County and the
    Fire District, challenging, among other things, the reasonableness
    2. Landowners in Wasatch County already paid for “basic fire
    protection services” through property taxes, but the Fire District
    determined that the then-remote Jordanelle Reservoir area would
    require “services in addition to the basic fire protection services” to
    adequately address increased building density.
    3. Before January 6, 2003, Wasatch County was governed by a
    three-member county commission. It currently consists of a seven-
    member county council with a manager. See Wasatch County
    Council, http://www.wasatch.utah.gov/Council (last visited July 6,
    2015).
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    Highlands at Jordanelle v. Wasatch County
    of the fire-protection service fees. Other landowners filed similar
    lawsuits, and the lawsuits were eventually consolidated.
    ¶6     Late in 2010, the landowners moved for partial summary
    judgment, asking the court to order a refund of the lump-sum fees
    and the monthly fees. The trial court entered an order ruling that
    the lump-sum fees were never authorized by Resolution 99-3 and
    must be refunded to the landowners. It further determined that
    while the monthly fees were authorized by Resolution 99-3, the fees
    did not bear a “reasonable relationship to the actual costs of
    providing the services.” Accordingly, the trial court ordered a
    refund of the monthly fees as well.
    ¶7      In 2011, after the trial court ordered that all of the fees be
    refunded but before the fees were actually refunded, the Fire
    District used $1,450,000 to pay off the fire station bond completely,
    eleven years ahead of schedule. The County then conveyed title to
    the fire station to the Fire District.
    ¶8     Over the next two years, the trial court determined, among
    other things, that the County was jointly liable with the Fire District
    and that the two entities must refund all the fees in full. It also
    determined that several of the landowners had paid both monthly
    and lump-sum fees more than four years before filing their lawsuits
    and were therefore barred from recovering those amounts by the
    applicable statute of limitations.
    ISSUES AND STANDARDS OF REVIEW
    ¶9      On appeal, the County and the Fire District assert that the
    trial court erred by granting the landowners’ motion for partial
    summary judgment and ordering a refund of the monthly fees.4 We
    4. During oral argument before this court, the County and the Fire
    District candidly conceded that the lump-sum fees were not
    (continued...)
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    Highlands at Jordanelle v. Wasatch County
    review a trial court’s legal conclusions and ultimate grant or denial
    of summary judgment for correctness. Orvis v. Johnson, 
    2008 UT 2
    ,
    ¶ 6, 
    177 P.3d 600
    .
    ¶10 The County asserts that the trial court incorrectly
    determined that the County was jointly liable with the Fire District
    for the lump-sum fees and the monthly fees. A trial court’s
    interpretation of “precedent, statutes, and the common law are
    questions of law that we review for correctness.” Ellis v. Estate of
    Ellis, 
    2007 UT 77
    , ¶ 6, 
    169 P.3d 441
    .
    ¶11 Both the County and the Fire District challenge the trial
    court’s grants of summary judgment in favor of the landowners,
    the court’s awards of attorney fees and expert-witness fees, and the
    addition of prejudgment interest on the lump-sum fee and monthly
    fee refunds. As just mentioned, we review a trial court’s legal
    conclusions and ultimate grant or denial of summary judgment for
    correctness. Orvis, 
    2008 UT 2
    , ¶ 6.
    ¶12 The landowners filed a cross-appeal, arguing that the trial
    court erred in concluding that the discovery rule did not toll the
    statute of limitations for some of the landowners’ claims. The
    applicability of a statute of limitations and the applicability of the
    discovery rule raise questions of law that we review for
    correctness. Colosimo v. Roman Catholic Bishop of Salt Lake City, 
    2007 UT 25
    , ¶ 11, 
    156 P.3d 806
    .
    ¶13 The landowners also appeal the trial court’s determination
    that, under rule 15(c) of the Utah Rules of Civil Procedure, one of
    the landowners’ refund claims did not relate back to the original
    complaint and was therefore untimely. We review a trial court’s
    4. (...continued)
    authorized by Resolution 99-3 and were therefore indefensible. The
    Fire District’s counsel stated, “I knew the lump-sum fees were sort
    of trying to make up fees for the bond, . . . but I don’t think I can
    defend them here today because they’re not within the resolution.”
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    Highlands at Jordanelle v. Wasatch County
    rule 15(c) analysis for correctness.5 Gary Porter Constr. v. Fox Constr.,
    Inc., 
    2004 UT App 354
    , ¶ 31, 
    101 P.3d 371
    .
    ANALYSIS
    A. Reasonableness of the Monthly and Lump-sum Fees
    ¶14 The County and the Fire District challenge the trial court’s
    determination that the monthly fees were not reasonably related to
    the cost of the services provided and that therefore they must be
    refunded.
    ¶15 Utah law permits special service districts, like the Fire
    District, to impose “fees or charges for any commodities, services,
    or facilities provided by the service district.” Utah Code Ann.
    § 17A-2-1320(1)(a) (Lexis 1999).6 To impose a fee, a district must
    5. The parties have all raised additional issues. The Fire District
    claims that the four-year statute of limitations was not the
    applicable statute; that the monthly fees were, in fact, taxes; that the
    landowners’ claims are barred by equitable estoppel; and that the
    trial court’s interpretation of Resolution 99-3 should only apply
    prospectively. The County and the Fire District both argue that if
    fees are refunded, they should be offset by the value of the fire-
    protection services the landowners have received. Finally, the
    landowners assert that the trial court erred in awarding attorney
    fees only against the Fire District and not against the County as
    well. The way in which we resolve the principal issues in this case
    renders many of these additional issues irrelevant, or at least
    limited in their application. Accordingly, we will, as appropriate,
    either address them in the context of the principal issues or decline
    to address them at all.
    6. Utah Code sections 17A-2-1320, 17A-2-1313, and 17A-1-203 have
    been either repealed or renumbered. Accordingly, for these
    (continued...)
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    Highlands at Jordanelle v. Wasatch County
    first give proper notice of the proposed fee, hold a public hearing,
    and then pass a resolution authorizing the fee. See 
    id.
     § 17A-1-
    203(1). Even with a valid authorizing resolution, however, the fee
    must still be reasonable. “To be a legitimate fee for service, the
    amount charged must bear a reasonable relationship to the services
    provided, the benefits received, or a need created by those who
    must actually pay the fee.” V-1 Oil Co. v. Utah State Tax Comm’n,
    
    942 P.2d 906
    , 911 (Utah 1996), vacated in part on other grounds, 
    942 P.2d 906
     (Utah 1997). The Utah Supreme Court has also recognized
    that the benefits and costs of some municipal services are hard to
    quantify:
    The nature of the service or benefit provided may
    also make it difficult or impossible to distribute the
    services or benefits equally to all who pay the fee. For
    such a fee to be reasonable, we have directed that it
    should be fixed so as to be equitable in light of the
    relative benefits conferred as well as the relative
    burdens imposed.
    
    Id. at 911
    –12 (internal citation omitted). Additionally, our Supreme
    Court determined that “fixing the amount of a fee is a legislative
    act to which we grant great deference.” 
    Id. at 917
    .
    ¶16 Considering the difficultly of fairly assessing fire-protection
    and related emergency-service fees and the great deference owed
    to the Fire District in adopting the legislation in question, we
    cannot agree that the monthly fees were unreasonable. The trial
    court determined that the monthly fees were unreasonable because
    the density determination alone did not authorize construction and
    therefore did not immediately create any additional costs. But the
    rule of V-1 Oil is that the fee must be related to the cost of
    6. (...continued)
    sections only, we cite the version of the code that was in effect at
    the time the Fire District was created. We otherwise cite the current
    version of the annotated code.
    20130445-CA                       7                
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    Highlands at Jordanelle v. Wasatch County
    providing the service or to the benefit conferred or to the need
    created by those who pay the fee. See 
    id. at 911
    . The trial court may
    be correct that the cost of providing fire-protection services to the
    undeveloped land did not immediately increase. But the benefit
    conferred on the landowners and the need created by the
    landowners did increase following the density determinations.
    ¶17 The benefit conferred upon the landowners was significant.
    Once the landowners received their density determinations, they
    had a vested right to increased building density—in the case of
    Highlands, increasing its ability to develop the land to 376 ERUs.
    The density determination made the landowners’ property
    instantly more marketable, more amenable to development, and
    much more valuable. The fact that the area was well provisioned
    with a nearby fire station paid for with those fees made any
    potential development subject to lower fire-insurance premiums.
    The landowners also benefitted in ways that are harder to quantify,
    such as enjoying increased safety and peace of mind and being able
    to market those features to prospective purchasers.
    ¶18 For these benefits conferred upon the landowners, we think
    that a fixed fee of $14.81 per ERU, while necessarily somewhat
    arbitrary, is not an obviously unreasonable fee. And we are not
    alone. Indeed, the Fire District entered into negotiations with the
    original landowners to balance their desire for increased density
    with the concurrent need of increased fire-protection services. The
    result was Resolution 99-3, authorizing the monthly fee. The fact
    that the original landowners agreed to the monthly fee is further
    evidence of its reasonableness.
    ¶19 The fee was also reasonably related to the “need created” by
    the landowners’ aspirations to develop the area. See 
    id.
     The trial
    court erred in ignoring the “need created,” which can admittedly
    be difficult to quantify, instead focusing only on the cost of
    providing fire protection and related services. Unlike costs for
    some kinds of municipal services, which can be calculated after the
    fact, the need for fire-protection services must be anticipated. It
    would be wholly unreasonable for the Fire District to have to wait
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    Highlands at Jordanelle v. Wasatch County
    until construction began and a fire broke out before it could charge
    any fees for fire-protection services to the area. Instead, the Fire
    District necessarily had to anticipate the need created by the
    increased density determinations. It had to build a new fire station
    and properly staff and equip it. This could not have been done at
    the very moment that the increased need was fully realized in the
    form of an inferno consuming actual buildings with actual
    occupants. Rather, the Fire District wisely treated the inevitability
    of fires and other emergencies in the area as a need that required
    action before structures were built and occupied, before a fire broke
    out, and before emergency services were required. By focusing
    solely on the cost of the services provided, the trial court failed to
    appreciate the need created by the increased density allowances.
    Considering the “great deference” owed to the Fire District in
    setting the fee in anticipation of future development, we must
    conclude that the fee is reasonable. See V-1 Oil, 942 P.2d at 917.
    ¶20 The trial court also took exception to the fact that the
    monthly fee was not “apportioned among properties” according to
    their level of development. But in V-1 Oil, our Supreme Court
    explicitly recognized the difficulty in distributing some types of
    services or benefits equally among all who pay the required fee. Id.
    at 911–12. Fire-protection service fees fall into this category. In the
    most narrow sense, the only true consumers of fire-protection
    services are those who have a fire. And yet, firefighters do not
    usually leave a bill for services rendered after they have
    extinguished a fire. Rather, it is standard for communities—often
    organized through special service districts—to pay for fire-
    protection services as a group and in a prospective manner, not
    individually and on an as-needed basis.7 In such a situation, our
    7. Fire-protection services are on a qualitatively different footing
    from some other municipal services, where the cost–benefit
    relationship is more obvious and easier to keep in balance.
    Providing metered culinary water or weekly collection of trash in
    provided bins come to mind. Citizens who use less water should
    (continued...)
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    Highlands at Jordanelle v. Wasatch County
    Supreme Court has determined that a service fee can still be
    reasonable if it is “fixed so as to be equitable in light of the relative
    benefits conferred as well as the relative burdens imposed.” 
    Id. at 912
    . In this case, the fee is fixed at $14.81 per ERU. And, as we have
    previously discussed, this fixed fee is equitable in light of the
    benefits conferred upon the landowners and in light of the need
    created by the landowners’ increased density determinations, even
    though it cannot be said with any confidence that $14.75 would be
    too low or that $14.99 would be too high.
    ¶21 The landowners contend, however, that even if the fixed
    amount of the fee is reasonable, it should have been assessed
    gradually at each stage of development, i.e., at one rate when
    rough grading begins, at another when vertical construction
    begins, and at a yet higher rate when an occupancy permit is
    issued. This may, in fact, have been a fine way to assess the cost of
    the fire-protection services, but that does not mean that the Fire
    District’s decision to charge a fixed fee beginning with the density
    determination was unreasonable. It was within the discretion of the
    Fire District, foreseeing sustained development in a popular
    recreation area, to provide essential services in anticipation of
    future needs.
    ¶22 The landowners received a benefit reasonably related to the
    monthly fees they paid. The Fire District reasonably assessed its
    current needs in light of the expectation of future development.
    Finally, the fixed rate of the monthly fee was reasonable
    considering the difficulty of apportioning fire-protection costs.
    Accordingly, we reverse the trial court’s decision that the County
    and the Fire District must refund the monthly fees.
    7. (...continued)
    pay less. Citizens who require two trash bins instead of the usual
    one should pay more. But all citizens benefit from the ready
    availability of fire protection whether they ever need the service or
    not. To shift the cost of providing that service to the comparative
    handful of people who need a house fire extinguished would be
    untenable.
    20130445-CA                        10                
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    Highlands at Jordanelle v. Wasatch County
    ¶23 The lump-sum fees, however, are a different matter.
    Resolution 99-3 never authorized such a charge, and both the
    County and the Fire District conceded during oral argument that
    the lump-sum fees are indefensible. We therefore affirm the trial
    court’s ruling that the lump-sum fees are invalid and remand to the
    trial court to determine the amount that must now be refunded.
    Unless otherwise stated, our analysis from this point forward will
    focus on the lump-sum fees—the only fees remaining at issue given
    our decision upholding the monthly fees.
    B. The County’s Joint Liability
    ¶24 The trial court determined that the County was jointly liable
    with the Fire District for the refund of fees. The County, however,
    asserts that the Fire District is a legally separate entity whose
    actions cannot be imputed to the County.
    ¶25 Under Utah law, a special service district is a “quasi-
    municipal corporation” and a “political subdivision of the state”
    that is “separate and distinct from the county . . . that creates it”
    and that “may sue and be sued.” See Utah Code Ann. § 17D-1-
    103(1) (LexisNexis Supp. 2014); Tribe v. Salt Lake City Corp., 
    540 P.2d 499
    , 503 (Utah 1975). As a special service district, then, the Fire
    District is separate and distinct from the County. Therefore, the Fire
    District’s collection of unauthorized lump-sum fees cannot be
    attributed to the County. The landowners assert, however, that
    even if the County and the Fire District are separate entities, the
    County’s control over the Fire District creates vicarious liability.
    Analogizing to municipal liability for the acts of independent
    contractors, the landowners argue that if “the municipality retains
    complete supervision and control over the manner of doing the
    work in detail or over the employees, it is liable.” See 18 Eugene
    McQuillin, The Law of Municipal Corporations § 53:77.47 (3d ed.
    2013).
    ¶26 Indeed, by statute, the County Commission or County
    Council, at all relevant times, acted as the governing board of the
    20130445-CA                       11                 
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    Highlands at Jordanelle v. Wasatch County
    Fire District and in this capacity controlled and had supervisory
    authority over all of the Fire District’s activities. See Utah Code
    Ann. § 17A-2-1313(2) (Lexis 1999). In this specific case, however,
    the Fire District charged a fee that was not authorized by
    Resolution 99-3. Furthermore, the County never collected or
    otherwise received the fees, except in the case of delinquency, as
    required by statute. See id. § 17B-1-902(1)(b) (LexisNexis 2013)
    (providing that “the past due fees and charges . . . become a lien on
    the customer’s property . . . on a parity with and collectible at the
    same time and in the same manner as general county taxes”). In
    this case, we do not see the kind of control that would create
    vicarious liability between two legally separate and distinct entities,
    even though they shared a governing board.8 We therefore reverse
    8. We note, however, that if a municipality were to intentionally
    interfere with a special service district’s ability to pay a judgment,
    it could constitute the kind of control that would create vicarious
    liability, notwithstanding the separate and distinct nature of the
    two entities. The landowners have pointed out that, after the trial
    court ordered a refund of the fees but before the refunds were paid,
    the County Council, acting as the governing board of the Fire
    District, chose to empty the Fire District’s coffers of nearly $1.5
    million to pay off the bond for the fire station eleven years early. In
    fact, the Fire District argues that refunding the fees would be a
    hardship because the fire-protection fees have already been
    expended. Our determination in this case that the County is
    separate and distinct from the Fire District and has not exercised
    the kind of control that would create vicarious liability does not
    imply that a county government may shift funds from a special
    service district to the county in an effort to make the special service
    district judgment-proof, and thus allow both entities, separate as
    they may be, to avoid all liability. The record on appeal does not
    convince us that this happened here. However, upon remand, if the
    trial court determines that the Fire District is unable to refund the
    lump-sum fees because of the early bond payoff, the trial court may
    take appropriate measures, including, if necessary, requiring the
    (continued...)
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    Highlands at Jordanelle v. Wasatch County
    the trial court’s determination that the County should be jointly
    liable for the refund of the fees.9
    C. Prejudgment Interest
    ¶27 The County and the Fire District argue that the trial court
    erred when it awarded prejudgment interest to the landowners for
    the refunded fees, set at 10% per year. In general, prejudgment
    interest “may be recovered where the damage is complete, the
    amount of the loss is fixed as of a particular time, and the loss is
    measurable by facts and figures.” Saleh v. Farmers Ins. Exch., 
    2006 UT 20
    , ¶ 28, 
    133 P.3d 428
    . Furthermore, “[w]hen a party proves that
    its damages were fixed at a particular point in time—even when it
    does not establish that proof until trial—that party is entitled to the
    benefit of its money from that time. Prejudgment interest remedies
    this injury.” AE, Inc. v. Goodyear Tire & Rubber Co., 
    576 F.3d 1050
    ,
    1058 (10th Cir. 2009).
    ¶28 Because of our earlier conclusion that only the lump-sum
    fees should be refunded, the amount of the refunds will be
    ascertained by the trial court on remand. This does not mean,
    however, that the amount of the refunds are not already complete,
    fixed, and measurable. See 
    id.
     (discussing Utah case law and
    concluding that “prejudgment interest may be appropriate even if
    the amount of damages are ascertained at trial”).
    ¶29 The damages resulting from the unauthorized lump-sum fee
    payments were complete when the landowners paid the fees. The
    amount of damages were “fixed as of a particular time,” i.e., at the
    moment of payment. Saleh, 
    2006 UT 20
    , ¶ 28. Finally, the lump-sum
    8. (...continued)
    County to disgorge any savings that may have been realized
    through the early bond payoff.
    9. Because we conclude that the County is not jointly liable, it
    follows that the landowners are not entitled to an award of
    attorney fees against the County.
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    Highlands at Jordanelle v. Wasatch County
    fees are measurable by simple mathematical calculations. See 
    id.
    Accordingly, we affirm the trial court’s grant of prejudgment
    interest but only as it applies to the lump-sum fees, which the Fire
    District is obligated to refund.10
    ¶30 The County and the Fire District also argue that the 10%
    annual interest rate was too high and that the interest should be
    calculated from the date of the trial court’s order and not from the
    date of the landowners’ payments. Utah Code section 15-1-1 sets a
    default interest rate for most contracts at 10% per year. See Utah
    Code Ann. § 15-1-1(2) (LexisNexis 2013). The County argues,
    however, that the payment of the unauthorized lump-sum fees was
    more analogous to an overpayment of taxes and that the rate
    should be “two percentage points above the federal short-term
    rate,” according to Utah Code section 59-1-402(3)(a). The question,
    then, is whether the lump-sum fees were contractual in nature or
    more akin to a tax.
    ¶31 We determine that the lump-sum fees were contractual. We
    recognize that service fees, unlike taxes, “must bear a reasonable
    relationship to the services provided, the benefits received, or a
    need created by those who must actually pay the fee.” V-1 Oil Co.
    v. Utah State Tax Comm’n, 
    942 P.2d 906
    , 911 (Utah 1996), vacated in
    part on reh’g, 
    942 P.2d 906
     (Utah 1997). This is similar to the quid
    pro quo aspect of a contract. In its briefing, the Fire District even
    frames the issue of the lump-sum fees in terms of contract or quasi-
    contract. First, while the Fire District argues that the monthly fees
    10. The County and the Fire District argue that the fee refunds
    should be offset by the value of the fire-protection services the
    landowners have received. But the lump-sum fees were never
    authorized and should not be offset by a benefit for which the
    landowners have already paid through their monthly fees, which
    we have determined are reasonable, and their property taxes. If the
    Fire District finds that $14.81 per ERU is insufficient to provide
    adequate fire-protection services, Resolution 99-3 permits the Fire
    District to raise the fixed monthly rate as necessary. Therefore, the
    lump-sum fees should be refunded without any offset.
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    Highlands at Jordanelle v. Wasatch County
    were, in fact, taxes masquerading as fees, it specifically declines to
    make the same argument regarding the lump-sum fees. Instead, the
    Fire District asserts that contract principles or equitable estoppel
    should have precluded the landowners’ claims. The Fire District
    writes:
    As a result of [the landowners’] promises,
    statements, and agreements, a bond was issued to
    fund the construction of a new fire station, and
    provisions were made to staff it with full-time fire
    fighters and EMTs, to purchase the necessary
    equipment, and to operate and maintain the newly
    constructed station. None of these events would have
    occurred, but for the consent and agreement of the
    developers to provide the revenue for the repayment
    of the bond and reimbursement of the operation and
    maintenance costs.
    According to the Fire District’s description, the landowners paid
    the lump-sum fees or “bond buy-in fees” as part of an agreement
    that the Fire District would use those funds to build and maintain
    a fire station in the Jordanelle Reservoir area. This characterization
    of the fees suggests that they are more analogous to contractual
    obligations than to taxes. Because the lump-sum fees in this context
    were more similar to a contract than to a tax, we conclude that the
    trial court was correct to apply the statutory default interest rate
    for most contracts, including this one, i.e., 10% per year.
    ¶32 Additionally, we affirm the trial court’s decision to calculate
    the prejudgment interest from the date on which the landowners
    paid the lump-sum fees. It is equitable to do so because the
    moment of payment was the precise moment at which the
    landowners were deprived of their funds through an admittedly
    indefensible fee. There is no reason why the Fire District should be
    allowed to benefit from its own error. Indeed, the Fire District used
    the unauthorized fees to help pay off the fire station bond eleven
    years early and thereby greatly reduced the amount of interest it
    would have otherwise paid on the bond. The most appropriate
    20130445-CA                      15                
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    resolution is to calculate the prejudgment interest from the moment
    the lump-sum fees were paid—a task which will be a
    straightforward calculation once the dates and amounts of the
    unauthorized payments are established.
    ¶33 We affirm the trial court’s grant of prejudgment interest at
    10% per year starting from the day the various landowners paid
    their lump-sum fees. We remand to the trial court to calculate the
    prejudgment interest as it applies to the lump-sum fee refunds
    only.
    D. Attorney Fees
    ¶34 The Fire District asserts that the trial court erred by
    awarding attorney fees to Highlands, the original plaintiff in this
    case, under the private-attorney-general doctrine.
    ¶35 Generally speaking, under Utah law a party is entitled to an
    award of its attorney fees only if it is authorized by contract or by
    statute. Culbertson v. Board of County Comm'rs, 
    2008 UT App 22
    , ¶ 9,
    
    177 P.3d 621
    . However, a court may, by exercising its inherent
    equitable powers, award attorney fees to a party that has acted as
    a private attorney general for the benefit of the public. See 
    id.
     To
    determine if a plaintiff is acting as a private attorney general, a
    court should consider whether (1) the plaintiff has vindicated an
    “important public policy,” (2) the plaintiff’s “necessary costs in
    doing so transcend the individual plaintiff’s pecuniary interest to
    an extent requiring subsidization,” and (3) the circumstances are
    exceptional. See 
    id.
     (citations and internal quotation marks omitted).
    ¶36 Considering, as we must, only the lump-sum fees, we
    determine that Highlands has vindicated an important public
    policy. The Fire District acted beyond its statutory authority in
    charging an unauthorized fee—not just to Highlands, but to other
    developers in the Jordanelle Reservoir area. The Fire District asserts
    that no other developer complained about the unauthorized fees
    for almost nine years. But if it were not for Highlands originally
    bringing its lawsuit, the Fire District may well have continued to
    20130445-CA                      16                
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    charge the invalid fee for years to come. Highlands’ efforts have
    not only spared all developers in the Jordanelle Reservoir area
    from paying an unlawful fee, but they have also helped the Fire
    District to comply with the law and act within its statutorily
    granted authority. These are important public interests that weigh
    heavily in Highlands’ favor.
    ¶37 We also determine that these are exceptional circumstances.
    In Stewart v. Utah Public Service Commission, 
    885 P.2d 759
     (Utah
    1994), a public utility was charging its ratepayers an unlawfully
    high fee. See 
    id. at 783
    . Some ratepayers challenged the fee in court,
    and they were opposed by both the public utility and the Utah
    Public Service Commission. 
    Id. at 762
    . The Utah Supreme Court
    determined that the circumstances there were exceptional enough
    to warrant the equitable award of attorney fees under the private-
    attorney-general doctrine. 
    Id. at 783 & n.19
    .
    ¶38 The exceptional circumstances in this case are similar to the
    exceptional circumstances in Stewart. Here, the Fire District
    continued to bill the unauthorized lump-sum fees even after the
    trial court ordered it to refund the fees to the landowners in
    November 2010. In its brief, the Fire District argued that the
    landowners should have been precluded from even challenging the
    lump-sum fees under a theory of promissory estoppel. It was not
    until oral argument before this court that the Fire District
    definitively conceded that the lump-sum fees were unauthorized
    and indefensible. As a result, Highlands has had to undertake
    sustained, determined efforts to vindicate the right to a refund of
    the lump-sum fees. We conclude that these circumstances are
    exceptional and weigh in favor of awarding attorney fees to
    Highlands.
    ¶39 Remand for further consideration of this issue is, however,
    necessary. In general, attorney fees may be granted in cases of
    “partial success,” see Stacey Props. v. Wixen, 
    766 P.2d 1080
    , 1085
    (Utah Ct. App. 1988) (dealing with contractual attorney fees), but
    care must be taken to “differentiate between the time spent on the
    successful claim and the time spent on unsuccessful claims,” see
    20130445-CA                      17                
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    Graco Fishing & Rental Tools, Inc. v. Ironwood Exploration, Inc., 
    766 P.2d 1074
    , 1080 (Utah 1988). Care will have to be used in
    identifying the attorney fees that are properly allocable to securing
    a refund of the lump-sum fees. We have determined that
    Highlands and the other developers must pay the legitimate
    monthly service fee, so Highlands will have to bear its own
    attorney fees insofar as allocable to that and the other issues on
    which it was not successful.
    ¶40 Once the trial court has determined the amount of attorney
    fees Highlands incurred in vindicating its right to a refund of the
    lump-sum fees, it can undertake the analysis required by the
    second Culbertson factor, comparing the fees incurred to the
    amount recovered so as to gauge whether “subsidization” is in
    order. See 
    2008 UT App 22
    , ¶ 9. The trial court should also calculate
    the attorney fees reasonably incurred by Highlands on appeal,
    insofar as allocable to the lump-sum fee issue on which it
    prevailed.11 If the “necessary costs of litigation . . . transcend
    [Highlands’] pecuniary interest” to a degree that warrants attorney
    11. Generally, when a party who received attorney fees below
    pursuant to a contract or a statute prevails on appeal, the party is
    also entitled to reasonable attorney fees incurred on appeal. See
    Valcarce v. Fitzgerald, 
    961 P.2d 305
    , 319 (Utah 1998). In this case,
    however, we are reviewing the equitable award of attorney fees
    under the private-attorney-general doctrine. This kind of equitable
    relief is an inherent power of the court, see Culbertson v. Board of
    County Comm'rs, 
    2008 UT App 22
    , ¶ 9, 
    177 P.3d 621
    , and can, under
    certain circumstances, be awarded on appeal even if not raised
    below, see Stewart v. Utah Pub. Serv. Comm'n, 
    885 P.2d 759
    , 781, 783
    (Utah 1994). Therefore, the question of who has prevailed on the
    overall appeal is largely irrelevant to the award of attorney fees in
    this case. Instead, the decision to award attorney fees incurred on
    appeal under the private-attorney-general doctrine should be
    based on the same three factors described in Culbertson, 
    2008 UT App 22
    , ¶ 9, i.e., (1) vindication of an important public policy, (2)
    necessary costs of litigation that transcend pecuniary interest, and
    (3) exceptional circumstances.
    20130445-CA                      18               
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    fees under the private-attorney-general doctrine, the trial court
    should award them.12 See Culbertson v. Board of County Comm’rs,
    
    2008 UT App 22
    , ¶ 9, 
    177 P.3d 621
    .
    E. The Discovery Rule
    ¶41 Mountain Resort Land Company, LLC, one of the
    landowners, argues in a cross-appeal that the trial court incorrectly
    denied its claim for a lump-sum fee refund as untimely.13 Mountain
    Resort asserts that the equitable discovery rule should have tolled
    the four-year statute of limitations.14
    12. We caution, however, that the comparison of the necessary
    costs to the pecuniary interest is only for the purpose of
    determining whether attorney fees will be granted under the
    private-attorney-general doctrine and should not be used as a basis
    for setting the amount of attorney fees. In determining the amount
    of awardable fees, it is generally a mistake of law to adjust the
    amount of otherwise reasonable attorney fees based on the amount
    of the recovery. See Dixie State Bank v. Bracken, 
    764 P.2d 985
    , 991
    (Utah 1988).
    13. Pigeonhole Development, LLC, and Mustang Development,
    LLC, join Mountain Resort in this cross-appeal. However,
    Pigeonhole’s and Mustang’s claims involve only monthly fees.
    Because we have already determined that the monthly fees were
    valid, we do not address the discovery rule as it applies to their
    claims.
    14. The Fire District also challenges the trial court’s determination
    that a four-year statute of limitations applied. Although its
    argument is not entirely clear, the Fire District appears to argue
    that either a thirty-day or a six-month statute of limitations should
    apply to all of the service fees, including the lump-sum fees,
    because the fees were not service charges but “availability fees”
    that are “more akin to a generally applicable tax.” We disagree. The
    Fire District admits that there is no resolution authorizing the
    (continued...)
    20130445-CA                       19                
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    ¶42 Before determining whether the equitable discovery rule
    applies, “the plaintiff must make an initial showing that he did not
    know nor should have reasonably known the facts underlying the
    cause of action in time to reasonably comply with the limitations
    period.” Berneau v. Martino, 
    2009 UT 87
    , ¶ 23, 
    223 P.3d 1128
    .
    Knowledge of the underlying facts may be actual or constructive.
    
    Id.
     After the initial showing,
    [f]or the equitable discovery rule to apply, one of two
    situations must exist: (1) “a plaintiff does not become
    aware of the cause of action because of the
    defendant’s concealment or misleading conduct” or
    (2) “the case presents exceptional circumstances and
    the application of the general rule would be irrational
    or unjust, regardless of any showing that the
    defendant has prevented the discovery of the cause
    of action.”
    
    Id.
     (quoting Russell Packard Dev., Inc. v. Carson, 
    2005 UT 14
    , ¶ 25,
    
    108 P.3d 741
    ).
    ¶43 In this case, it appears that Mountain Resort has made its
    initial showing that it did not reasonably know that the lump-sum
    fees were invalid until it learned of Highlands’ lawsuit against the
    14. (...continued)
    lump-sum fees, but the only possible rationale for the lump-sum
    fees would have been pursuant to Resolution 99-3. The whole
    purpose of the resolution was to set a “fire protection service
    charge.” Resolution 99-3 also cites Utah Code section 17A-2-1320,
    titled “Fees or charges,” as its authority to assess the service fees.
    We readily conclude that the lump-sum fees were service fees, not
    taxes, and that the trial court correctly applied a four-year statute
    of limitations. See Ponderosa One Ltd. P'ship v. Salt Lake City
    Suburban Sanitary Dist., 
    738 P.2d 635
    , 637–38 (Utah 1987) (per
    curiam) (determining that a sewer service charge was a service fee,
    not a tax or assessment, and therefore subject to a four-year statute
    of limitations).
    20130445-CA                      20                
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    Fire District and the County. Nothing in the record indicates that
    Mountain Resort had actual notice that the fees were invalid until
    after Highlands began litigation in 2008. Nor did Resolution 99-3
    provide Mountain Resort with constructive knowledge of the
    underlying fact, i.e., that there was no authorizing resolution or
    legislative act to justify the lump-sum fees. While Resolution 99-3
    explicitly authorized monthly fees, it is silent on the validity or
    invalidity of the lump-sum fees. From all that appears, however,
    Mountain Resort could have reasonably assumed that the lump-
    sum fees were authorized by some other resolution.
    ¶44 The Fire District argues that we should indulge the general
    presumption that “all men . . . know the law,” see Board of Educ. v.
    Jeppson, 
    280 P. 1065
    , 1069 (Utah 1929), and that therefore Mountain
    Resort should have known that the fees were invalid. Assuming,
    however, that there was a law that would indicate the underlying
    fact—that the lump-sum fees lacked statutory support—this
    presumption would also apply to the Fire District. Under the same
    reasoning, we would presume that the Fire District knew the lump-
    sum fees were illegal and charged the landowners anyway. We are
    disinclined to indulge a presumption that would cast a
    governmental entity’s actions in such a poor light. Indeed, the Fire
    District defended itself against such an implication before the trial
    court, arguing that “it was not until Highlands challenged the fees
    and clearly stated its argument in 2010 that the Fire District was put
    on notice that the [lump-sum] fees may not be collectible.”
    Therefore, we conclude that Resolution 99-3’s silence on the subject
    of lump-sum service fees did not provide constructive notice of the
    underlying invalidity of the fees to either the Fire District or
    Mountain Resort. Accordingly, we determine that Mountain Resort
    has made its initial showing that it did not know, nor should it
    have known, that the lump-sum fees lacked statutory support until
    it learned of Highlands’ lawsuit.15
    15. Public policy concerns further bolster this conclusion. Utah law
    has favored policies that encourage landowners to promptly pay
    their service charges and taxes. See Edwards v. Powder Mountain
    (continued...)
    20130445-CA                      21                
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    ¶45 We now consider whether the equitable discovery rule is
    applicable. Mountain Resort does not appear to claim that the Fire
    District intentionally misled it or concealed information from it
    regarding the validity of the lump-sum fees. See Berneau, 
    2009 UT 87
    , ¶ 23. Therefore, we must determine whether there are
    “exceptional circumstances” in which “the application of the
    general rule would be irrational or unjust.” See 
    id.
     (citation and
    internal quotation marks omitted). In determining whether
    exceptional circumstances exist, we weigh the “hardship the statute
    of limitations would impose on the plaintiff in the circumstances of
    that case” against “any prejudice to the defendant from difficulties
    of proof caused by the passage of time.” Myers v. McDonald, 
    635 P.2d 84
    , 87 (Utah 1981).
    ¶46 We have already determined, in the context of attorney fees,
    that these circumstances are exceptional. See supra ¶¶ 37–38. In
    weighing whether the “hardship the statute of limitations would
    impose on the plaintiff” outweighs “any prejudice to the defendant
    from difficulties of proof caused by the passage of time,” Myers, 635
    P.2d at 87, we have no doubt that the lump-sum fees are
    indefensible and that but for the statute of limitations, Mountain
    Resort would be entitled to a refund. Because the statute of
    limitations would bar Mountain Resort from an otherwise
    uncontested recovery, we conclude that the statute imposes a
    substantial hardship. On the other side of the scale, we consider
    15. (...continued)
    Water & Sewer, 
    2009 UT App 185
    , ¶¶ 17–19, 
    214 P.3d 120
    (determining that delinquent water and sewer fees must be paid
    before the plaintiff has standing to challenge their validity). Cf.
    Utah Code Ann. § 59-2-1327 (LexisNexis 2011) (requiring a person
    who claims that a property tax is unlawful to first pay the tax
    under protest and later challenge the validity of the tax in court).
    Indeed, absent actual or constructive notice that a service fee is
    invalid, a customer is entitled to assume the validity of the service
    fee and pay it in a timely fashion. In this case, Mountain Resort
    should not be penalized for doing just that.
    20130445-CA                      22               
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    how the passage of time has increased the difficulty of the Fire
    District’s defense of the lump-sum fees. We conclude that the
    passage of time has not prejudiced the Fire District in the least.
    Indeed, it has conceded that the lump-sum fees are indefensible.
    No evidence or legal defense was available to the Fire District that
    is now unavailable as a result of the passage of time. Considering
    the substantial hardship imposed on Mountain Resort and the lack
    of prejudice resulting to the Fire District, we conclude that these are
    exceptional circumstances that warrant the application of the
    discovery rule to moderate the harsh result of applying the statute
    of limitations. We reverse the trial court’s decision not to apply the
    discovery rule to toll the statute of limitations but only as it applies
    to Mountain Resort’s claim for a refund of the lump-sum fees it
    paid.16
    F. Relation Back of Claims
    ¶47 Pigeonhole Development, LLC, one of the cross-appellants,
    argues that the trial court erred in determining that one of its
    claims did not relate back to its original complaint and was, for that
    reason, untimely. After Pigeonhole purchased the right to bring
    claims on behalf of Prime West Jordanelle, LLC, it filed its first
    16. In balancing the equities, we also recognize that the Fire District
    rightly deserves the predictability of a clearly applicable statute of
    limitations. Unrestricted exemptions from the statute of limitations
    under circumstances similar to these may encourage ongoing
    litigation in a way that is inequitable toward the Fire District.
    Fortunately, this should not be the case here. We note that the trial
    court’s decision on November 10, 2010, ordering a refund of the
    lump-sum fees, provided constructive notice, if not actual notice,
    to all potential claimants. As of November 10, 2014, the four-year
    statute of limitations has run for any lump-sum fee payments that
    occurred before November 10, 2010, even with the application of
    the discovery rule. As a practical matter, the class of plaintiffs that
    could benefit from a tolling of the statute of limitations based on
    the discovery rule has now closed. The Fire District can now plan,
    budget, and fix its fees accordingly.
    20130445-CA                       23                
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    complaint against the Fire District and the County on November 8,
    2010. More than a year later, on November 22, 2011, Pigeonhole
    purchased additional refund claims from PWJ Holdings, LLC,
    through PWJ’s bankruptcy trustee. Pigeonhole then attempted to
    amend its complaint to include its claims obtained from PWJ.
    However, applying rule 15(c) of the Utah Rules of Civil Procedure,
    the trial court concluded that “Pigeonhole as successor in interest
    to PWJ’s claims does not share an identity of interest with
    Pigeonhole as successor in interest to the claims of Prime West.” It
    therefore denied the PWJ claims as untimely.
    ¶48    Rule 15(c) of the Utah Rules of Civil Procedure provides:
    Whenever the claim or defense asserted in the
    amended pleading arose out of the conduct,
    transaction, or occurrence set forth or attempted to
    be set forth in the original pleading, the amendment
    relates back to the date of the original pleading.
    Utah R. Civ. P. 15(c). Generally, rule 15(c) does not apply to an
    amendment that “substitutes or adds new parties for those brought
    before the court by the original pleadings” because it “would
    amount to the assertion of a new cause of action.” Doxey-Layton Co.
    v. Clark, 
    548 P.2d 902
    , 906 (Utah 1976). However, under limited
    circumstances, a new party may relate its claim back to the original
    complaint in the event of a “misnomer case” or if there is a “true
    identity of interest” between the new party and the original party.
    Wright v. PK Transp., 
    2014 UT App 93
    , ¶ 5, 
    325 P.3d 894
     (citation
    and internal quotation marks omitted).
    ¶49 A true identity of interest exists if (1) “‘the amended
    pleading alleged only claims that arose out of the conduct,
    transaction, or occurrence set forth or attempted to be set forth in
    the original pleading’” and (2) the defendant had received actual
    or constructive notice that the new plaintiff “‘would have been a
    proper party to the original pleading such that no prejudice would
    result’” from preventing the defendant from using a statute-of-
    20130445-CA                     24                
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    limitations defense that otherwise would have been available.
    Ottens v. McNeil, 
    2010 UT App 237
    , ¶ 43, 
    239 P.3d 308
     (quoting Gary
    Porter Constr. v. Fox Constr., Inc., 
    2004 UT App 354
    , ¶ 40, 
    101 P.3d 371
    ) (applying the identity-of-interest test to a plaintiff who sought
    to add an additional defendant). See Doxey-Layton, 548 P.2d at 906
    (explaining that the identity-of-interest exception applies to “both
    plaintiff and defendant”).
    ¶50 On cross-appeal, Pigeonhole contends that its attempt to
    amend the complaint to add the PWJ claims did not add a new
    party. After purchasing the claims from Prime West and PWJ,
    Pigeonhole argues that it became the only entity with a right to
    pursue those claims. See Applied Med. Techs., Inc. v. Eames, 
    2002 UT 18
    , ¶ 17, 
    44 P.3d 699
     (holding that the sale of a claim “cuts off the
    former plaintiff’s right to pursue those claims”). This is true as
    concerns an agreement between parties to sell a claim. But as
    concerns the parties’ standing in court, we consider plaintiffs who
    have purchased their claims to have “step[ped] into the shoes of
    the former plaintiff.” See 
    id.
     Pigeonhole has, in effect, purchased the
    right to step into the shoes of Prime West and PWJ. Therefore,
    Pigeonhole’s effort to amend its complaint to add the PWJ claims
    does attempt to add a new party. Pigeonhole’s PWJ claims are
    therefore time barred unless Pigeonhole can show that PWJ has a
    true identity of interest with Prime West independent of their
    connection via Pigeonhole.
    ¶51 We now examine whether PWJ’s claims “arose out of the
    conduct, transaction, or occurrence set forth or attempted to be set
    forth in the original pleading.” See Ottens, 
    2010 UT App 237
    , ¶ 43
    (citation and internal quotation marks omitted). We conclude that
    they did not. The relevant conduct, transaction, or occurrence that
    Pigeonhole originally complained about was the Fire District’s
    requirement that Prime West pay “Lump Sum Fire Service Fees
    over a time period spanning several years.” After this conduct
    occurred, PWJ purchased the property from Prime West on June 1,
    2007. The Fire District then also required PWJ to pay fees, which it
    20130445-CA                       25                
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    did on September 12, 2007.17 As a result, the PWJ claims concern a
    separate act of misconduct directed against a separate plaintiff.
    ¶52 Allegations of “new or different acts of misconduct” amount
    to new claims that cannot relate back to the original complaint.
    Yearsley v. Jensen, 
    798 P.2d 1127
    , 1129 (Utah 1990) (denying a
    motion to amend because it alleged “new and different
    misconduct”); Behrens v. Raleigh Hills Hosp., Inc., 
    675 P.2d 1179
    , 1183
    (Utah 1983) (allowing an amended pleading because the
    amendment relied on a different legal characterization of the
    offense but did not refer to “new or different acts of misconduct”).
    Because Pigeonhole’s PWJ claims allege a new act of misconduct,
    they fail the first element of the identity-of-interest test. It follows
    that Pigeonhole also fails to meet the requirements of rule 15(c) and
    that the trial court ruled correctly in denying Pigeonhole’s motion
    to amend.
    CONCLUSION
    ¶53 We conclude that the monthly fee of $14.81 per ERU is a
    reasonable fee and that the Fire District can charge the fee from the
    moment the County grants a density determination. Accordingly,
    we reverse the trial court’s decision to the contrary.
    ¶54 We affirm the trial court’s ruling that the lump-sum fees are
    invalid. We remand to the trial court to determine exactly which
    fees were lump-sum fees that must now be refunded.
    ¶55 Because it is legally separate from the Fire District, the
    County is not jointly liable to refund the lump-sum fees, attorney
    17. It is not clear from the briefing or the record before us whether
    the PWJ claims are for the legitimate monthly fees authorized by
    Resolution 99-3 or for the invalid lump-sum fees. In the interest of
    conclusively resolving all issues, we will continue with our analysis
    on the assumption that at least some of the PWJ claims involve
    lump-sum fees.
    20130445-CA                       26                
    2015 UT App 173
    Highlands at Jordanelle v. Wasatch County
    fees, or any other judgment or obligation for which the Fire District
    is liable in connection with this case. We reverse the trial court’s
    determination that the County was jointly liable.
    ¶56 We affirm the trial court’s grant of prejudgment interest at
    10% per year starting from the moment each landowner paid a
    lump-sum fee. We remand to the trial court to calculate the
    prejudgment interest as it applies to the lump-sum fee refund only.
    ¶57 We mostly affirm the trial court’s determination to award
    Highlands its attorney fees. We remand, however, for the trial
    court to determine which of Highlands’ attorney fees, below and
    on appeal, are allocable to the lump-sum fee issue and to reassess
    the amount of those costs versus the amount recovered for the
    purposes of applying the private-attorney-general doctrine.
    ¶58 We reverse the trial court’s decision not to apply the
    discovery rule to toll the statute of limitations, but only insofar as
    it concerns Mountain Resort’s claim for a refund of its lump-sum
    fees.
    ¶59 Finally, because Pigeonhole’s proposed amendment to its
    original complaint alleges a new act of misconduct directed against
    a new party, it does not relate back to its original complaint. We
    therefore affirm the trial court’s determination that Pigeonhole’s
    PWJ claims are untimely.
    ¶60 With the guidance offered in this opinion, the trial court may
    now fully resolve this conflict, including determining appropriate
    fees and costs.18
    18. All parties agree that the trial court abused its discretion in
    awarding the landowners’ expert-witness fees in excess of the
    statutory rate. Upon remand, if the trial court still determines that
    an award of these fees is appropriate, it must adhere to the
    statutory rate.
    20130445-CA                      27                
    2015 UT App 173