Public water system record
Slo CSA No. 10 - Cayucos WTP
Serves Cayucos, San Luis Obispo County, CA · Population served not reported
Federal records show no health-based violations and no monitoring or reporting issues for Slo CSA No. 10 - Cayucos WTP 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
- 0
Key facts
- Slo CSA No. 10 - Cayucos WTP draws water from 1 well and 1 surface water intake.
- Most recent formal enforcement: compliance order (no penalty) by California, March 2005.
- Record on file since 1993, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 3 service lines.
Check whether Slo CSA No. 10 - Cayucos WTP 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, and no monitoring or reporting violations either.
Full record since 1993
EPA's records for Slo CSA No. 10 - Cayucos WTP go back to 1993. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 1 |
| 2000s | 1 | 0 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2004, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
|
Oct 1, 2004 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1993 | Resolved |
Enforcement actions
California regulators took 1 formal enforcement action against Slo CSA No. 10 - Cayucos WTP in 2005. The most recent was a compliance order (no penalty) in March 2005.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 21, 2005 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Trihalomethanes (TTHMs) |
Where the water comes from
Slo CSA No. 10 - Cayucos WTP draws water from 1 well and 1 surface water intake. It also buys water from Cayucos Beach Mutual Water Company and Morro Rock Mutual Water Co. 3 other community water systems buy water from Slo CSA No. 10 - Cayucos WTP.
Buys water from
- Cayucos Beach Mutual Water Company Cayucos, CA
- Morro Rock Mutual Water Co Cayucos, CA
Community systems that buy water from it
- Cayucos Beach Mutual Water Company Cayucos, CA
- Morro Rock Mutual Water Co Cayucos, CA
- Slocsa #10A - Cayucos San Luis Obispo, CA
Annual water quality report
Slo CSA No. 10 - Cayucos WTP 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.
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