Public water system record
Del Oro Water Company - Strawberry Div.
Serves an area of Tuolumne County, CA that includes Strawberry · 1,295 people served
Federal records show 2 health-based violations and 1 monitoring/reporting issue for Del Oro Water Company - Strawberry Div. 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
- 2
- Resolved
- 2
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Del Oro Water Company - Strawberry Div. draws water from 1 surface water intake.
- Most recent formal enforcement: compliance order (no penalty) by California, April 2025.
- Record on file since 1979, with 10 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 400 service lines.
Check whether Del Oro Water Company - Strawberry Div. 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 | Feb 1, 2025 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2018 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2018 | Resolved |
Full record since 1979
EPA's records for Del Oro Water Company - Strawberry Div. go back to 1979. Before October 19, 2016 they list 10 health-based violations (10 resolved) and 14 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1980s | 0 | 8 |
| 1990s | 6 | 4 |
| 2000s | 4 | 1 |
| October 19, 2016 to 2019 | 1 | 1 |
| 2020s | 1 | 0 |
Most recent health-based violation before October 19, 2016: Haloacetic Acids (HAA5), began January 2009, Resolved.
Show all 10 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Jan 1, 2009 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.0716 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
Apr 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.0654 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
Jan 1, 2005 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jan 1, 2004 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 1994 | Resolved |
Enforcement actions
California regulators took 3 formal enforcement actions against Del Oro Water Company - Strawberry Div. between 2009 and 2025. The most recent was a compliance order (no penalty) in April 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 17, 2025 | California | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
| May 14, 2018 | California | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
| Apr 10, 2009 | California | Compliance order (no penalty) | 3 violations (2 health-based): CARBON, TOTAL, Haloacetic Acids (HAA5) |
What the violations mean
Surface Water Treatment Rule
2 incidentsThe 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 each of these violations.
Where the water comes from
Del Oro Water Company - Strawberry Div. draws water from 1 surface water intake.
Annual water quality report
Del Oro Water Company - Strawberry Div. 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