Rockwall Approves Utility Rate Increases for Water and Wastewater

The City of Rockwall posted a public notice on Dec. 31 outlining changes to city water and wastewater rates that became effective Jan. 1. The City Council approved the adjustments at its Dec. 1 meeting. City staff said the changes respond to rising regional costs for supply, treatment and wastewater operations and to higher charges passed through by the North Texas Municipal Water District.

Under the new structure, the city estimates the average residential customer will see base-charge increases of approximately $1.55 per month for water and $5.40 per month for wastewater. Volumetric rates also rose modestly: water rates increased by about $0.29 per 1,000 gallons, and wastewater rates by about $0.60 per 1,000 gallons across usage tiers. Wastewater billing will continue to be based on a winter average for determining customers’ billed wastewater volumes.

City staff said their rate analysis limited adjustments to the amounts necessary to cover operations, debt service on major utility projects, and required reserves. The changes are intended to preserve utility operations and meet financial obligations tied to infrastructure investment and regional supply agreements.

For Rockwall County households, the increases mean a measurable uptick in monthly utility bills. Combined, the estimated average base-charge hikes total roughly $6.95 per month before accounting for any changes in actual water use. Customers with higher seasonal usage or larger households may see larger volumetric impacts, while those whose wastewater charges are calculated from a low winter average could experience smaller proportional increases.

The North Texas Municipal Water District’s role as a regional wholesaler means shifts in its rates are felt across multiple North Texas communities. Local decisions to adjust retail rates often reflect these broader, inter-jurisdictional cost pressures and the need to fund treatment, transmission and debt obligations. That regional dynamic helps explain why municipal rate decisions in Rockwall are tied to factors beyond the city’s immediate control.

Residents with questions or seeking clarification can contact the city’s public information office; the notice lists Kate Sitzenstatter as the city’s public information contact. Review your January bill carefully to understand how base-charge and volumetric changes affect your household, and reach out to the city for assistance if you believe your billing reflects an error or if you need information about billing practices such as the winter average for wastewater.