Private Investor-Owned Utility
California Water Service Company - Chico District
Serving Chico and Hamilton City
Population served
114,925
State system code
FIPS 06
Billing frequency
A dedicated this detail was not publicly posted. The reviewed Chico District pages explain monthly service charges and AutoPay but do not state one universal bill-generation interval for every Cal Water account.
Provider briefing
How this utility’s billing works
California Water Service Company - Chico District operates as a private investor-owned utility serving Chico and Hamilton City. 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 Increasing block quantity tiers plus a monthly readiness-to-serve charge. Effective July 1, 2026 for Chico North Valley Region residential metered service, 1-6 CCF is $0.6017/CCF, 7-18 CCF is $2.4046/CCF, 19-29 CCF is $3.0055/CCF, and over 29 CCF is $3.6057/CCF; a 5/8x3/4-inch meter has a $29.29 monthly service charge.. Bills are generated a dedicated this detail was not publicly posted. the reviewed chico district pages explain monthly service charges and autopay but do not state one universal bill-generation interval for every cal water account., and a typical residential cost reference is At approximately 5,984 gallons (8 CCF), the July 1, 2026 tariff is about $46.12 before surcharges ($29.29 service charge plus 6 CCF at $0.6017 and 2 CCF at $2.4046). This is the Cal Water water charge only; Chico sewer is billed separately by the City of Chico/Util360 for applicable customers.. 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
Chico customers on Cal Water and City of Chico sewer receive separate bills: Cal Water bills the water service, while the City of Chico bills sewer through Util360. The reviewed Cal Water district page does not calculate the sewer charge or winter average, so the wastewater component is not part of the Cal Water estimate.
Meter and infrastructure notes
Cal Water's tariff bills metered service in CCF, and its account tools provide online billing and usage history. The reviewed Chico pages do not identify the meter vendor, AMR/AMI transmission interval, or universal monthly read date.
Emergency water support
Report a leak or water emergency
530-893-6300, listed as both the Chico District main and after-hours contact.
Official starting point
Choose the right next step
Reading this profile
A practical reference for Chico and Hamilton City
California Water Service Company - Chico District is listed here as a private investor-owned utility. 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.