Public water system record
Cobb Area County Water District
Serves Cobb, Lake County, CA · 3,515 people served
Federal records show 1 health-based violation and 2 monitoring/reporting issues for Cobb Area County Water District in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- Cobb Area County Water District draws water from 12 wells and 1 spring (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by California, December 2010.
- Record on file since 2004, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 1,307 service lines.
Check whether Cobb Area County Water District serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Active | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Jun 1, 2025 | Active |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Active |
Full record since 2004
EPA's records for Cobb Area County Water District go back to 2004. Before October 19, 2016 they list no health-based violations and 5 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 0 | 3 |
| 2010 to October 18, 2016 | 0 | 2 |
| 2020s | 1 | 2 |
Enforcement actions
California regulators took 4 formal enforcement actions against Cobb Area County Water District between 2004 and 2010. The most recent was a compliance order (no penalty) in December 2010.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 21, 2010 | California | Compliance order (no penalty) | 2 violations: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
| Jul 1, 2010 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Aug 31, 2009 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Apr 27, 2004 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
What the violations mean
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Cobb Area County Water District draws water from 12 wells and 1 spring (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Cobb Area County Water District must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by California.
Certified drinking water labs by state EPA guidance for private wells