Public water system record
McKinleyville C.S.D.
Serves McKinleyville, Humboldt County, CA · 16,900 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for McKinleyville C.S.D. in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- McKinleyville C.S.D. buys its water from Humboldt Bay MWD.
- Most recent formal enforcement: compliance order (no penalty) by California, July 2023.
- Record on file since 1984, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 6,440 service lines.
Check whether McKinleyville C.S.D. 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.
None since October 2016.
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
|
Oct 1, 2022 | Resolved |
Full record since 1984
EPA's records for McKinleyville C.S.D. go back to 1984. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 1 | 0 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began June 1993, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1993 | Resolved |
Enforcement actions
California regulators took 1 formal enforcement action against McKinleyville C.S.D. in 2023. The most recent was a compliance order (no penalty) in July 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 13, 2023 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
Where the water comes from
McKinleyville C.S.D. buys its water from Humboldt Bay MWD. It lists no wells or intakes of its own.
Buys water from
- Humboldt Bay MWD Eureka, CA
Annual water quality report
McKinleyville C.S.D. 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.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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