delivered the opinion of the Court.
The City of Northglenn brought this action to obtain title to water and sewer facilities that are serving its residents and which are now operated by the City of Thornton. The facilities include all of the water and sewer lines located within Northglenn plus portions of Thornton’s transmission and treatment facilities. The district court denied Northglenn’s claim and we affirm.
In 1956, Northwest Utilities, a private corporation operating as a regulated public utility, began providing sewer and water services to that portion of Adams County which is now incorporated as the City of Northglenn. Its expansion into this area was accomplished by means of “Utility Extension Policy Contracts.” Under the terms of these contracts, the developers who were building in the area agreed to construct all sewer and water lines, and, upon completion, to tranfer title to them by deed to Northwest Utilities. In consideration, Northwest Utilities agreed to make reimbursement payments to the developer for a period of usually fifteen years. These contracts were all entered into before construction began and before the filing of plats by the developers.
In 1963, the City of Thornton exercised an option contained in a 1957 franchise agreement with Northwest Utilities and purchased the entire system which served its residents and those in Adams County. The purchase was authorized by a vote of Thornton’s citizens and was financed by an issue of both revenue and general obligation bonds. This court
*539
ultimately approved that transfer.
City of Thornton
v.
Public Utilities Commission,
Although Northglenn was incorporated in 1969, it did not assert any claim of title to the utility system until 1971 when this action was initiated. Northglenn now claims ownership based on two broad theories. It contends either (1) that the system was dedicated to the public by placement of the utilities under dedicated streets or (2) that it is held by Northglenn in a constructive trust for the benefit of its residents whom, they contend, purchased the system as a part of the purchase of their homes from the developers.
I.
A statement of basic principles is necessary in order to put into proper perspective Northglenn’s claim that the utility system in issue was dedicated to public use free of all claims of ownership by Thornton. First, in Colorado, a dedication of property to the public use is never presumed without evidence of unequivocal intent to make such dedication.
Parrish
v.
Public Utilities Commission,
The stipulated facts in this case demonstrate that the sewer and water facilities were never themselves dedicated and that none of the necessary elements is present. Until the filing of this suit all parties acted as if the utilities were privately held. The developers contracted to transfer ownership and easements to Northwest Utilities before the system was even constructed, and in the sale from Northwest Utilities to Thornton, both parties believed that the system was free and clear of any claims or encumbrances other than the rebates owed to the developers. Further, there was undisputed testimony that neither the developers, Northwest Utilities, nor Thornton at any time had any intention of dedicating to the *540 public any of the facilities now claimed by Northglenn, and there was additional undisputed testimony that Adams County would not have accepted and did not intend to accept any such dedication. Additionally, the parties stipulated that
“Northglenn and its residents assumed and treated Thornton as the full owner of the water and sewer system now being claimed by Northglenn until shortly before this suit was filed in September, 1971. The Northglenn residents have continued to treat Thornton as the owner of this system.” Thus, there was sufficient evidence to support the trial court’s conclusion that there was, in fact, no dedication of the water and sewer facilities at issue here.
Both sides have agreed that the developer’s dedication of public streets was properly made and accepted, and Northglenn argues that such dedication acted as a dedication of the sewer and water lines which were, in most cases,
subsequently
installed beneath those streets. Whatever interest a dedication of streets may pass to a municipality,
see City of Leadville
v.
Bohn Mining Co.,
Northglenn relies on
Trentman
v.
City and County of Denver,
Similarly, Northglenn has cited cases in which courts have denied compensation to private developers whose utility lines have been absorbed into a municipal system.
See, e.g., Stegall
v.
City of
Jackson,
These cases, dependent as they are on their particular facts, provide little support here. We are not dealing with parties who have abandoned continuing contact with the facilities. Rather, there has been an express determination that the appellees in this case had no intention of relinquishing their interest in the water and sewer facilities and have continued their operations and service to the public for over twenty years.
II.
Alternatively, Northglenn claims that the ownership of the utility system has passed to the purchasers of the houses — who are citizens of Northglenn, and that the municipality therefore holds the system in a constructive trust for them. In support of this contention, Northglenn points to a small number of ambiguous advertisements circulated by the developers which it construes as indicating that the water lines were included within the purchase of homes. Northglenn further notes that the water payments made by consumers have exceeded the capital costs of the system.
The trial court made explicit findings on this issue and concluded:
“Neither the Northglenn residents nor the City of Northglenn have paid for any of the water and sewer facilities claimed by Northglenn, either through the purchase price of their homes or through their periodic utility bills.”
*542 There is ample support for this conclusion in the record.
In this case, unlike many other situations with which courts have dealt, the developers recovered the cost of installation of sewer and water facilities by separate rebate payments from the utility operating the system. Thus, the purchasers of the homes were not directly charged for the cost of the line. Furthermore, the payment for services in excess of capital costs does not by that fact alone vest title in the consumer, nor does the increase in cost to consumers to cover those capital costs act as a sale of the capital goods themselves. While a contrary rule might produce an interesting economic system, it is not the system under which we now operate.
The purchasers in a development may indeed have obtained some right to prevent the interruption of service or the removal of water mains constructed for their benefit,
see Suburban Real Estate Co. v. Incorporated Village of
Silverton,
Finally, Northglenn contends that Thorton, as a municipality, operates the utility system in trust and that, upon incorporation, Northglenn succeeded to that trust in favor of its residents. In its argument, however, Northglenn has not adequately considered the distinction between municipal functions which are operated in a “proprietary” rather than a “governmental” capacity. As this court has noted:
“(I)t is well settled that a city in operating a water works system acts in its proprietary or business, and not in its political or governmental capacity, and in so acting is governed largely by the same rules that apply to a private corporation.”
County of Larimer
v.
City of Fort Collins,
In numerous cases, this court has upheld the right of a municipality to serve non-resident utility customers,
see Colorado Open Space Council, Inc.
v.
City and County of Denver,
Since Northglenn cannot prevail on its substantive theories, we need not consider the trial court’s findings in favor of Thornton on various subsidiary issues.
The judgment of the district court is affirmed.
Notes
NorthgIenn also argues that there has been a statutory dedication made pursuant to sections 30-28-110(3)(a), 31-1-108, 31-1-401 or 43-2-201 (1)(a) and (b). In most cases, however, the sewer and water facilities had not been constructed at the time of the plat filings which Northglenn uses in support of its claim of statutory dedication, and the basic issue of whether placement of those facilities under public streets acts to vest title in Northglenn arises independently of whether those streets were dedicated by statute or common law.
At any rate, insofar as that decision is in conflict with Colorado cases requiring intent to dedicate and acceptance by governmental authority, it, being decided by the federal courts, is not persuasive.
