Municipal Department
CASTLE ROCK TOWN OF
Serving Castle Rock
Population served
Approximately 110,298 people served by Castle Rock Water.
State system code
FIPS 08
Billing frequency
Monthly. Water meters are read during the first three days of each month, bills are generated and mailed between the 6th and 9th, and payments are due on the last business day of the month.
Provider briefing
How this utility’s billing works
CASTLE ROCK TOWN OF operates as a municipal department serving Castle Rock. 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 tiers with fixed monthly service charges. Tier 1 covers the account’s indoor Average Winter Monthly Consumption (AWMC), Tier 2 is the April–October irrigation-season allocation, and Tier 3 is usage above the total budget; rates increase progressively by tier. A conservation surcharge applies to single-family residential usage above 40,000 gallons.. Bills are generated monthly. water meters are read during the first three days of each month, bills are generated and mailed between the 6th and 9th, and payments are due on the last business day of the month., and a typical residential cost reference is For a new single-family account before an individualized AWMC is established, the Town assigns a 4,000-gallon class average and states that the monthly wastewater charge is approximately $35; the total water bill depends on the 2026 fixed charges, individualized budget, and usage tier. A reliable 5,000–7,000-gallon total should be calculated in the Town’s current 2026 rate PDF/portal because outdoor allocation and property-specific budget change the result.. 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 calculates the wastewater component from the customer’s Average Winter Monthly Consumption, averaging indoor potable use from November through February. The AWMC is reset on the April statement and represents the monthly wastewater volume treated; the wastewater charge remains stable through the year unless the annual AWMC changes. New customers receive a 4,000-gallon class average until enough history exists.
Meter and infrastructure notes
Castle Rock reads all water meters for actual usage during the first three days of each month. The reviewed public pages do not identify AMR/AMI technology; the billing portal provides usage tracking and graphs against the individualized water budget.
Emergency water support
Report a leak or water emergency
720-733-6000, press 1 for the after-hours emergency line.
Official starting point
Choose the right next step
Reading this profile
A practical reference for Castle Rock
CASTLE ROCK TOWN OF is listed here as a municipal department. The profile separates account actions—such as paying a bill or requesting service—from explanatory material about rates, meters, wastewater, leaks, and delinquency.
Because utility rules can vary by account class, meter size, service address, billing date, and local ordinance, treat the published bill and current provider website as the final authority. Use this profile to locate the correct channel and prepare better questions for customer service.
If your issue is urgent, start with the provider’s emergency number or official payment route rather than waiting for an email response. Keep a written record of calls, confirmation numbers, notice dates, and documents you submit.