Public water system record
Emerald Valley Mutual Water Company
Serves an area of Santa Clara County, CA · 43 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Emerald Valley Mutual Water Company 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
- 1
Key facts
- Emerald Valley Mutual Water Company draws water from 2 wells.
- Most recent formal enforcement: compliance order (no penalty) by California, November 2021.
- Record on file since 2010, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 18 service lines.
Check whether Emerald Valley Mutual Water Company 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 |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2021 | Resolved |
Full record since 2010
EPA's records for Emerald Valley Mutual Water Company go back to 2010. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2010 to October 18, 2016 | 2 | 1 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Nitrate (acute), began January 2011, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 2011 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 1, 2010 | Resolved |
Enforcement actions
California regulators took 2 formal enforcement actions against Emerald Valley Mutual Water Company between 2011 and 2021. The most recent was a compliance order (no penalty) in November 2021.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 23, 2021 | California | Compliance order (no penalty) | 1 violation: Revised Total Coliform Rule |
| Apr 12, 2011 | California | Compliance order (no penalty) | 3 violations (2 health-based): Nitrate |
Where the water comes from
Emerald Valley Mutual Water Company draws water from 2 wells.
Annual water quality report
Emerald Valley Mutual Water Company 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 Emerald Valley Mutual Water Company 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