UPPER LAKE, CA · Lake County
UPPER LAKE COUNTY WATER DISTRICT Water System
Consumer Confidence Report status
UPPER LAKE COUNTY WATER DISTRICT 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 UPPER LAKE COUNTY WATER DISTRICT.
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)
- CA1710009
- System type
- Community Water System
- Population served
- 989
- Service connections
- 403
- Ownership
- local government
- Water source
- groundwater (wells)
UPPER LAKE COUNTY WATER DISTRICT is one of 728 community water systems in California in the 501 to 3,300 people size category, serving 989 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 1989 and 2008, all of which EPA lists as closed. Nothing has been added since 2008.
Of the 3, 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 Lead and Copper Rule.
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
July 1, 2008 – July 7, 2016
ResolvedNotification, Public
—No contaminant on record
February 1, 1989 – February 28, 1989
ArchivedNotification, Public
—No contaminant on record
February 1, 1989 – February 28, 1989
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2008 – July 7, 2016 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| February 1, 1989 – February 28, 1989 | Notification, Public | — | — | Archived |
| February 1, 1989 – February 28, 1989 | Notification, Public | — | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is UPPER LAKE COUNTY WATER DISTRICT required to publish a Consumer Confidence Report?
- Yes. UPPER LAKE COUNTY WATER DISTRICT 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 UPPER LAKE COUNTY WATER DISTRICT’s next Consumer Confidence Report due?
- UPPER LAKE COUNTY WATER DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does UPPER LAKE COUNTY WATER DISTRICT have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for UPPER LAKE COUNTY WATER DISTRICT.
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
HENRY, RACHELLE
707-275-3232
UPPER LAKE, CA 95485