Prosper Council approves water and wastewater rate increases, effective Oct. 15

The Prosper Town Council unanimously approved an ordinance on Sept. 16 to raise water and wastewater rates, citing higher purchase and treatment costs that staff said they cannot fully absorb.

Chris Landrum, a town utilities presenter, told the council the town is a distribution utility that purchases water for resale and is facing a roughly 15% increase in the cost it pays for water from its suppliers. "All told, the blended increase is about 8.8% for next year, 6.26% on the water and a little over 15% on the wastewater," Landrum said.

Landrum said about 62% of the town's water budget is the cost of purchasing water; on wastewater, treatment costs represent roughly 40% of that budget. The town is also building a wastewater treatment plant with partner cities, which contributed to higher wastewater costs.

Council asked how the rate change would be communicated to customers; staff said a flyer will be included inside utility bills to explain the adjustment to customers.

The ordinance takes effect Oct. 15, 2025. The council approved the measure unanimously.

What changed: The ordinance sets the water increase at about 6.26% and the wastewater increase at about 15.08%, producing a blended increase of about 8.8% for the utility enterprise fund.

Why it matters: The increase seeks to cover higher purchased-water and treatment costs and to fund ongoing utility capital programs, including meter replacement and trunk-line projects.

Votes: Motion to approve ordinance amending water and wastewater rates effective Oct. 15, 2025: Passed unanimously (7-0).