Public water system record
City of Ripon
Serves Ripon, San Joaquin County, CA · 15,741 people served
Federal records show no health-based violations and no monitoring or reporting issues for City of Ripon 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
- City of Ripon draws water from 6 wells.
- Most recent formal enforcement: compliance order (no penalty) by California, October 2010.
- Record on file since 1988, with 10 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 5,135 service lines.
Check whether City of Ripon 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 1988
EPA's records for City of Ripon go back to 1988. Before October 19, 2016 they list 10 health-based violations (10 resolved) and 10 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 6 |
| 1990s | 6 | 1 |
| 2000s | 4 | 0 |
| 2010 to October 18, 2016 | 0 | 3 |
Most recent health-based violation before October 19, 2016: Nitrate (acute), began December 2001, Resolved.
Show all 10 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate (acute)
Contaminant limit exceeded
|
Dec 19, 2001 | Resolved |
|
Tetrachloroethylene
Contaminant limit exceeded
Measured 0.006 mg/L, federal limit 0.005 mg/L (1.2 times the limit)
|
Jul 23, 2001 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1999 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1999 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1997 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Oct 1, 1995 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1995 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 1993 | Resolved |
Enforcement actions
California regulators took 7 formal enforcement actions against City of Ripon between 1999 and 2010. The most recent was a compliance order (no penalty) in October 2010.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 6, 2010 | California | Compliance order (no penalty) | 1 violation: Consumer Confidence Rule |
| Feb 1, 2002 | California | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate |
| Sep 24, 2001 | California | Compliance order (no penalty) | 1 violation (1 health-based): Tetrachloroethylene |
| Jan 22, 2001 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Oct 4, 2000 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Dec 3, 1999 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Sep 21, 1999 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
Where the water comes from
City of Ripon draws water from 6 wells.
Annual water quality report
City of Ripon 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