Public water system record
CDCR - Sierra Conservation Center
Serves an area of Tuolumne County, CA · 3,571 people served
Federal records show 4 health-based violations and no monitoring/reporting issues for CDCR - Sierra Conservation Center in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.
System profile
- Health-based violations, last 10 years
- 4
- Resolved
- 4
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- CDCR - Sierra Conservation Center draws water from 1 surface water intake.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit), 2019.
- Most recent formal enforcement: compliance order (no penalty) by California, August 2018.
- Record on file since 1993, with 9 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 87 service lines.
Check whether CDCR - Sierra Conservation Center 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 |
|---|---|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jan 1, 2019 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
220 | Oct 1, 2018 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jul 1, 2018 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
220 | Apr 1, 2018 | Resolved | No |
Full record since 1993
EPA's records for CDCR - Sierra Conservation Center go back to 1993. Before October 19, 2016 they list 9 health-based violations (9 resolved) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 0 |
| 2000s | 7 | 0 |
| 2010 to October 18, 2016 | 0 | 1 |
| October 19, 2016 to 2019 | 4 | 0 |
Most recent health-based violation before October 19, 2016: CARBON, TOTAL, began April 2009, Resolved.
Show all 9 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2009 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2009 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Oct 1, 2008 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2008 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Apr 1, 2008 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2008 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2004 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1998 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1993 | Resolved |
Enforcement actions
California regulators took 2 formal enforcement actions against CDCR - Sierra Conservation Center between 2008 and 2018. The most recent was a compliance order (no penalty) in August 2018.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 29, 2018 | California | Compliance order (no penalty) | 4 violations (4 health-based): Haloacetic Acids (HAA5) |
| Apr 29, 2008 | California | Compliance order (no penalty) | 6 violations (6 health-based): CARBON, TOTAL |
What the violations mean
Haloacetic Acids (HAA5)
4 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Where the water comes from
CDCR - Sierra Conservation Center draws water from 1 surface water intake.
Annual water quality report
CDCR - Sierra Conservation Center 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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