Public water system record
Ridgewood Water System
Serves an area of Mendocino County, CA · 265 people served
Federal records show 1 health-based violation and 3 monitoring/reporting issues for Ridgewood Water System in the last ten years. The most serious issue in this window was a resolved Surface Water Treatment Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- Ridgewood Water System draws water from 1 well and 2 springs (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by California, September 2014.
- Record on file since 1980, with 1 health-based violation before October 20, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 179 service lines.
Check whether Ridgewood Water System 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 |
|---|---|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Jun 20, 2023 | Resolved | 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
|
Oct 1, 2017 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2008 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2002 | Resolved |
Full record since 1980
EPA's records for Ridgewood Water System go back to 1980. Before October 20, 2016 they list 1 health-based violation (1 resolved) and 12 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 2 |
| 1990s | 0 | 2 |
| 2000s | 0 | 5 |
| 2010 to October 19, 2016 | 1 | 3 |
| October 20, 2016 to 2019 | 0 | 1 |
| 2020s | 1 | 0 |
Most recent health-based violation before October 20, 2016: Total Coliform, began January 2012, Resolved.
Show the health-based violation before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2012 | Resolved |
Enforcement actions
California regulators took 6 formal enforcement actions against Ridgewood Water System between 1999 and 2014. The most recent was a compliance order (no penalty) in September 2014.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 17, 2014 | California | Compliance order (no penalty) | 2 violations: Nitrate, Nitrite |
| Dec 13, 2012 | California | Compliance order (no penalty) | 1 violation: Miscellaneous Other Rules |
| Mar 6, 2012 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Jul 9, 2009 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Sep 27, 2001 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
| Feb 3, 1999 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
What the violations mean
Surface Water Treatment Rule
1 incidentThe system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Ridgewood Water System draws water from 1 well and 2 springs (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Ridgewood Water System 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 Ridgewood Water System 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