Plaintiff Brookside Memorials, Inc., a granite manufacturer seeking a refund for sewer bill overpay-ments it made to defendant Barre City over a six-year period, appeals the superior court’s order granting the City summary judgment. We hold that under the facts and circumstances of this case, plaintiff is entitled to the requested refund; accordingly, we reverse the court’s order and grant summary judgment to plaintiff.
Plaintiff is a Barre City business engaged in the manufacture and distribution of granite memorials and other granite products. The building in which plaintiff is located was operated as a granite shed for approximately seventy-five years, when, in 1977, it was sold to an insulation company. Plaintiff took possession of the site in 1982, and since then has operated it as a granite manufacturing business.
Barre City bills residents and businesses quarterly for water use and sewage disposal. Water bills are based on metered use. For most residents and businesses, sewer bills are calculated as a percentage of the metered water use; however, for those manufacturing businesses that do not return all of the water that they use back into the sewer system, sewer bills are based on the number of workers employed at the site rather than on the amount of water used. Granite manufacturers such as plaintiff are charged a flat rate based on the number of employees because the large volume of water that they use in the manufacturing process is discharged into sludge pits or lagoons rather than the city sewer system.
Nevertheless, from 1982 to 1994, the City billed plaintiff for sewer disposal at the metered rate, which often exceeded $3500 per year, rather than the flat rate, which would have been only about $100 per year. Thus, during the twelve-year-period, plaintiff paid over $40,000 more than it was obligated to pay for sewage disposal.
In 1994, plaintiff’s owners learned that their business should have been billed at the flat rate. They brought the matter to the attention of the City, which agreed to apply the lower rate in the future. The City also offered to give plaintiff a refund for overpayments made during the most recent year, but refused plaintiff’s demand that the City refund all overpay-ments made during the previous six years, the general limitations period for civil actions. See 12 VS.A. § 511. Plaintiff then sued the City under theories of breach of contract and unjust enrichment.
The superior court granted the City summary judgment, ruling that plaintiff bore the responsibility but failed to ascertain whether its sewer bills were reflective of and consistent with the use of its premises. According to the court, regardless of whether the City knew that plaintiff was operating as a granite shed, plaintiff was not entitled to a refund because it had paid the sewer bills voluntarily without protest and could have discovered the problem through reasonable diligence, including examining the bills.
On appeal, plaintiff contends that the law and facts of the case require the City to refund the overpayments. The City concedes that plaintiff was entitled to pay
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the flat rate, and does not contend that the metered rate was reasonable or equitable as applied to plaintiff. See
Handy v. City of Rutland,
Under a quasi-contract theory of unjust enrichment, the law implies a promise to pay when a party receives a benefit and retention of the benefit would be inequitable.
In re Estate of Elliott,
The City argues that the court properly applied the voluntary payment rule in this instance because plaintiff’s failure to discover the existence of the flat rate to which it was entitled was a mistake of law that precludes recovery of the overpay-ments. According to the City, plaintiff should have learned of the correct rate by discussing the matter with its peers in the granite industry or by inquiring at the Water and Sewer Department. We conclude that the voluntary payment rule does not apply under the circumstances of this particular case because plaintiff made the payments without a full knowledge of the facts, and the City, not plaintiff, was in a better position to discover and correct the error. See
Getto v. City of Chicago,
The overpayments in this case arose out of the parties’ mutual mistake as to the correct sewer rate to apply to plaintiff. The City’s mistake was one of fact — failing to recognize that plaintiff was a granite manufacturing business entitled to the flat rate. Although plaintiff’s “mistake” — failing to become aware of the existence of the City’s flat rate for businesses such as itself — could be characterized as a mistake of law, it was not a typical mistake of law involving a failure to appreciate the effect or consequences of a recognized law. Cf.
New Jersey Hospital Ass’n v. Fishman,
The instant case is an equitable action, not an action based on a refund statute. See
American Tierra Corp. v. City of West Jordan,
Given the undisputed facts and circumstances of this case, equity demands a refund. Cf.
Knutson Hotel Corp. v. City of Moorhead,
*561 Moreover, the City’s own policy regarding refunds appears to recognize that plaintiff is entitled to a refund based on the type of mistake at issue here. At oral argument, the City acknowledged that it offered a one-year refund to plaintiff not as an offer of settlement for a promise not to sue, but rather as an offer under its refund policy limited only by a one-year statute of limitations that the City believes to govern.
According to the City, even if we determine that plaintiff is entitled to a refund, the amount of the refund is limited by 32 VS.A. § 5292(a):
A taxpayer shall not contest the validity of any tax assessed against his person, personal property or real estate nor the validity of the action of the list-ers or selectmen in assessing such tax nor the validity of any grand list unless the taxpayer filed his objections to the validity thereof, in the office of the town clerk wherein the tax is assessed, within a period of two months from November 15 of each year in which the tax is assessed.
The City reasons as follows: Subsections (a) and (b) of 24 VS.A. § 3612 provide that unpaid sewage disposal charges shall be a lien upon real estate in the same manner as taxes under 32 VS.A. § 5061, and that the municipality may enforce such a lien in the same manner as in the collection of taxes under subchapter 9 of chapter 133 of Title 32, which includes § 5292(a).
We find no merit to this argument. Subchapter 9 of chapter 133 of Title 32 is entitled “Delinquent Taxes.” Article 4 within that subchapter concerns the statutory procedure by which municipalities may collect delinquent taxes. Article 6 of subchapter 9, entitled “Taxpayers’ Defenses,” includes § 5292(a). The references to Title 32 in 24 VS.A. § 3612 are intended to create a lien on real estate for delinquent sewer charges and to provide municipalities with a statutory cause of action to enforce such a lien. Here, the City is not seeking to enforce a lien based on unpaid sewer bills. Nor is plaintiff seeking to contest the validity of a tax assessed against its personal property. The limitations period in § 5292(a) does not apply to the instant action.
Finally, the City briefly contends that even if it is liable for plaintiff’s overpayments, it is liable only to the extent that it still held the wrongfully collected funds at the time plaintiff initiated the present action. In support of its argument, the City cites two Vermont cases,
Meacham v. Town of Newport,
Assuming that the relevant legal holdings in these two cases are still good law, they do not govern this ease. Here, the overpayments for sewage disposal went directly to the City’s Water and Sewer Department, and not to any other non-party governmental entities from which they could not be recovered.
Reversed; plaintiff’s motion for summary judgment is granted, and the case is remanded for computation of damages. Plaintiff’s motion to strike is denied as moot.
Motion for reargument denied July 14, 1997.
Notes
The trial court relied on
Marshall Durbin & Co. v. Jasper Utils. Bd.,
