Town of Castle Rock Water

Provider briefing

How this utility’s billing works

Town of Castle Rock Water operates as a municipal department serving Castle Rock and Town water service limits. Customers should use the provider’s current account-specific bill and official customer-service instructions as the final authority for deadlines, balances, and service requests.

The published water-rate framework is described as Individualized water-budget increasing blocks with seasonal irrigation tiers and a fixed renewable-water charge. For 2026 residential water, Tier 1 based on the account’s assigned winter water budget is $3.39 per 1,000 gallons; irrigation-season Tier 2 is $6.91 and Tier 3 is $10.31, while winter excess is $6.91. A 5/8-inch-to-3/4-inch residential service has a $36.30 monthly renewable-water service charge. Castle Rock also publishes drought and water-use-management surcharges.. Bills are generated monthly. castle rock reads all water meters during the first three days of each month, generates bills between the sixth and ninth, and sets the due date at the last business day of the month., and a typical residential cost reference is A single universal 5,000–7,000-gallon price is not reliable because Castle Rock assigns each address a water budget based on winter indoor use and irrigable area. For a typical 7,000-gallon month within Tier 1, the volumetric component is approximately $23.73 plus the $36.30 renewable-water charge, before wastewater and stormwater. The account’s personalized budget, seasonal irrigation, and drought status control the final amount.. These descriptions are useful planning benchmarks; actual charges can change with meter size, usage, sewer averaging, local taxes, drought stages, or account-specific fees.

Wastewater and sewer calculation

Castle Rock Water is an integrated provider and the bill incorporates drinking water, wastewater, and stormwater. The current 2026 rate materials publish wastewater as a fixed monthly charge plus a volumetric rate; the utility’s water-billing page and 2026 fee schedule should be used for the exact meter-size amount. The public pages reviewed do not state a universal household winter-average sewer formula, so the customer’s adopted account class and actual wastewater rate control the calculation.

Meter and infrastructure notes

All Castle Rock water meters are read for actual usage during the first three days of each month, with bills generated and mailed between the sixth and ninth. The public pages reviewed do not identify whether the network is AMR or AMI, but customers can access monthly billed usage, two years of statements, and usage patterns through the online account.