CHICO, CA · Butte County
BLUE OAK TERRACE MUTUAL Water System
Consumer Confidence Report status
BLUE OAK TERRACE MUTUAL must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show 1 item for BLUE OAK TERRACE MUTUAL that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
- CA0409181
- System type
- Community Water System
- Population served
- 81
- Service connections
- 30
- Ownership
- privately owned
- Water source
- groundwater (wells)
BLUE OAK TERRACE MUTUAL is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 81 people from groundwater.
As of August 1, 2026, its federal record holds 4 entries between 2007 and 2025, of which 1 remains open; none are health-based.
All 4 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals, the Lead and Copper Rule, and volatile organic chemicals.
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2025
UnaddressedMonitoring, Regular
—Arsenic
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Nitrate
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Benzene
January 1, 2007 – December 31, 2007
Resolved
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2025 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Unaddressed |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Benzene | — | Resolved |
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
Enforcement actions
- September 16, 2008State Compliance achieved7 linked violations
Common questions
Is BLUE OAK TERRACE MUTUAL required to publish a Consumer Confidence Report?
- Yes. BLUE OAK TERRACE MUTUAL is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is BLUE OAK TERRACE MUTUAL’s next Consumer Confidence Report due?
- BLUE OAK TERRACE MUTUAL’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does BLUE OAK TERRACE MUTUAL have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for BLUE OAK TERRACE MUTUAL that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
BUTLER, MICHAEL
530-680-7079
CHICO, CA 95926