Public water system record
PSMCSD - Vierra Estates WS
Serves Prunedale, Monterey County, CA · 164 people served
Federal records show 3 health-based violations and no monitoring/reporting issues for PSMCSD - Vierra Estates WS in the last ten years. The most serious issue in this window was a Arsenic violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 3
- Resolved
- 0
- Unresolved
- 0
- Archived by EPA
- 3
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- PSMCSD - Vierra Estates WS draws water from 2 wells.
- Highest measured level in the last 10 years: Arsenic, 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit), 2024.
- Most recent formal enforcement: compliance order (no penalty) by California, June 2024.
- Record on file since 1993, with 5 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 49 service lines.
Check whether PSMCSD - Vierra Estates WS 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 |
|---|---|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Oct 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
|
330 | Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
330 | Apr 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
Full record since 1993
EPA's records for PSMCSD - Vierra Estates WS go back to 1993. Before October 19, 2016 they list 5 health-based violations (3 resolved, 2 archived by EPA without a recorded fix) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 1 |
| 2000s | 5 | 2 |
| 2020s | 3 | 0 |
Most recent health-based violation before October 19, 2016: Total Coliform, began October 2005, Resolved.
Show all 5 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2004 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2004 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2002 | Resolved |
Enforcement actions
California regulators took 2 formal enforcement actions against PSMCSD - Vierra Estates WS and issued 1 boil water order between 2015 and 2024, filed as 4 records in EPA's data. The most recent was a compliance order (no penalty) in June 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jun 17, 2024 | California | Compliance order (no penalty) | 3 violations (3 health-based): Arsenic |
| Feb 5, 2015 | California | Boil water order | 2 violations (2 health-based): Total Coliform |
| Feb 5, 2015 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
What the violations mean
Arsenic
3 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
Where the water comes from
PSMCSD - Vierra Estates WS draws water from 2 wells.
Annual water quality report
PSMCSD - Vierra Estates WS 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 PSMCSD - Vierra Estates WS 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