CHICO, CA · Butte County
GRAN MUTUAL WATER CO Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.
System facts
- System ID (PWSID)
- CA0400008
- System type
- Community Water System
- Population served
- 290
- Service connections
- 91
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Monitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 1981 – September 30, 1982 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- October 24, 2025State Compliance achieved3 linked violations
- February 5, 2015State Violation/Reminder Notice1 linked violation
- February 5, 2015State Compliance achieved1 linked violation
- November 30, 2014State Compliance achieved2 linked violations
Contact
BUTLER, MICHAEL
530-680-7079
CHICO, CA 95926