California Water Service Company - Chico District
Chico and Hamilton City
Population reference
114,925
Billing detail
Partial public detail found
Official destination
Open provider website ↗Provider-specific findings
Billing and account research from public material
Provider-specific research notes are displayed separately from fields that contain only an unavailable-information marker. Read qualifiers in each note and verify current account terms with the provider.
- Rate structure
- 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.
- Residential cost reference
- 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.
- 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 reading
- 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.
Context, not a score
How documentation coverage compares
This profile
57%
overview fields with research notes
California
67%
records with any overview detail
National index
50%
records with any overview detail
Coverage measures what this directory documented. It does not measure service quality, affordability, or regulatory compliance.
Research record
Partial public detail found
4 of 7 fields in this section contain provider-specific public detail in dataset August 1, 2026.
Documented
57%
Details not confirmed in the reviewed public material
- Billing frequency
- New-account deposit
- Activation or transfer fee
“Not confirmed” means the directory did not identify a dependable public statement. It does not mean the provider has no policy or option.
Primary verification routes
- California Water Service Company - Chico District public website ↗
Provider-controlled destination used to confirm current customer instructions.
- EPA Safe Drinking Water Information System ↗
Federal background on public water-system records and their limitations.