In March of 1957 a petition was filed with the Town Clerk for the creation of a proposed sanitary district. The Town Board issued an order establishing the boundaries, declaring the district organized and naming it Sanitary District No. 1 of the Town of Troy.  In 2012 the name was changed to Troy Center Sanitary District #1 and in 2025 the boundaries were amended to reflect the changes that have occurred since the formation of the sanitary district.

In 1958 it was agreed that the Sanitary District would pay the Troy Center Improvement Association Cooperative the sum of $50 per year for rental of the well and pump. In 1968 the cooperative was dissolved, and the Sanitary District took possession of the well, pump and land that now houses the pumphouse.

The original water system included 4,669 linear feet of water mains. Mains were added in 1973 and 1988. Today the distribution system consists of 5,700 linear feet (1.1 miles) of 6-inch cast and ductile iron pipe. The existing water supply system consists of one well and a 4,000-gallon hydropneumatic pressure tank. Originally the district had five fire hydrants, today there are seven. 2025 improvements to the water system include a new back-up generator, an upgrade to the electrical system in the pumphouse and a new pump.

The Troy Center Sanitary District #1 is regulated by the Public Service Commission (PSC) of Wisconsin. The PSC works to ensure adequate and reasonably priced service is provided to utility customers. Changes to water rates are subject to review and approval by the PSC. All people receiving water supply from the Troy Center Sanitary District #1, or who may request service in the future, are considered as having agreed to be bound by rates, regulations and rules as filed with the PSC.  Current rates and rules, effective February 2, 2025, are available for public inspection at the Troy Town Hall.