Public water system record
Bassi Ranch Mutual Water Co.
Serves an area of San Luis Obispo County, CA · 85 people served
Federal records show no health-based violations and 6 monitoring/reporting issues for Bassi Ranch Mutual Water Co. in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 6
Key facts
- Bassi Ranch Mutual Water Co. draws water from 3 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by California, November 2025.
- Lead pipe inventory: 0 lead and 0 unknown out of 26 service lines.
Check whether Bassi Ranch Mutual Water Co. 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, 2025 |
Active
Enforcement action in place
|
|
Nitrate
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
Enforcement actions
California regulators took 6 formal enforcement actions against Bassi Ranch Mutual Water Co. between 2018 and 2025. The most recent was a compliance order (no penalty) in November 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 13, 2025 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Jan 29, 2024 | California | Compliance order (no penalty) | 1 violation: Nitrate |
| Dec 15, 2021 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Jan 29, 2020 | California | Compliance order (no penalty) | 1 violation: Nitrate |
| Jan 27, 2020 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Mar 8, 2018 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
Where the water comes from
Bassi Ranch Mutual Water Co. draws water from 3 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Bassi Ranch Mutual Water Co. 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Bassi Ranch Mutual Water Co. for a copy.
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