LAKEPORT, CA · Lake County
CORINTHIAN BAY MUTUAL WATER COMPANY Water System
Consumer Confidence Report status
CORINTHIAN BAY MUTUAL WATER COMPANY 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 no open violations for CORINTHIAN BAY MUTUAL WATER COMPANY.
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)
- CA1700549
- System type
- Community Water System
- Population served
- 150
- Service connections
- 74
- Ownership
- privately owned
- Water source
- groundwater (wells)
CORINTHIAN BAY MUTUAL WATER COMPANY is one of 3,951 community water systems in California in the 500 or fewer people size category, serving 150 people from groundwater.
As of August 1, 2026, its federal record holds 2 entries between 1981 and 1983, all of which EPA lists as closed. Nothing has been added since 1983.
Of the 2, 1 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 the Miscellaneous Other Rules and the Radionuclides and Revised Rad Rule.
Violation history
Notification, Public
—No contaminant on record
November 1, 1983 – November 30, 1983
ArchivedMonitoring, 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 |
|---|---|---|---|---|
| November 1, 1983 – November 30, 1983 | Notification, Public | — | — | Archived |
| 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
- June 12, 2023State Compliance achieved6 linked violations
Common questions
Is CORINTHIAN BAY MUTUAL WATER COMPANY required to publish a Consumer Confidence Report?
- Yes. CORINTHIAN BAY MUTUAL WATER COMPANY 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 CORINTHIAN BAY MUTUAL WATER COMPANY’s next Consumer Confidence Report due?
- CORINTHIAN BAY MUTUAL WATER COMPANY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CORINTHIAN BAY MUTUAL WATER COMPANY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CORINTHIAN BAY MUTUAL WATER COMPANY.
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
WISKIRCHEN, JOHN
707-489-8981
LAKEPORT, CA 95453