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Public water system record

Thimio MWC

Serves Elkhorn, Monterey County, CA · 59 people served

Federal records show 7 health-based violations and no monitoring/reporting issues for Thimio MWC in the last ten years. The most serious issue in this window was a Nitrate violation that EPA lists as archived, not resolved.

  • CA2702608
  • PRUNEDALE
  • CA
  • 59 served

System profile

Source water Groundwater
ZIP 93907
EPA system ID CA2702608

Verify this system on EPA ECHO →

Health-based violations, last 10 years
7
Resolved
0
Unresolved
0
Archived by EPA
7
Any acute record
Yes
Monitoring issues, last 10 years
0

Key facts

  • Thimio MWC draws water from 1 well.
  • Highest measured level in the last 10 years: Nitrate, 12 mg/L, federal limit 10 mg/L (1.2 times the limit), 2024.
  • Most recent formal enforcement: compliance order (no penalty) by California, June 2022.
  • Record on file since 2003, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 21 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Nitrate
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 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.
 Yes
Nitrate
Contaminant limit exceeded
Measured 12 mg/L, federal limit 10 mg/L (1.2 times the limit)
 330 Jan 1, 2024 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 Yes
Nitrate
Contaminant limit exceeded
Measured 12 mg/L, federal limit 10 mg/L (1.2 times the limit)
 330 Oct 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 Yes
Nitrate
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
 330 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 Yes
Nitrate
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
 330 Oct 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 Yes
Nitrate
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
 330 Jul 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 Yes
Nitrate
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
 330 Apr 1, 2022 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 Yes

Full record since 2003

EPA's records for Thimio MWC go back to 2003. Before October 19, 2016 they list no health-based violations and 2 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 0 2
2020s 7 0

Enforcement actions

California regulators took 1 formal enforcement action against Thimio MWC in 2022. The most recent was a compliance order (no penalty) in June 2022.

Date By Action Violations covered
Jun 14, 2022 California Compliance order (no penalty) 7 violations (7 health-based): Nitrate

What the violations mean

Nitrate

7 incidents

Nitrate exceeded the federal limit

High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome

Where the water comes from

Thimio MWC draws water from 1 well.

Annual water quality report

Thimio MWC 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 Thimio MWC 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