Tap Truth EPA drinking water records, in plain English

Public water system record

Yokohl Mutual Water Co

Serves an area of Tulare County, CA · 95 people served

Federal records show 8 health-based violations and 10 monitoring/reporting issues for Yokohl Mutual Water Co in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

  • CA5400647
  • VISALIA
  • CA
  • 95 served

System profile

Source water Groundwater
ZIP 93277
EPA system ID CA5400647

Verify this system on EPA ECHO →

Health-based violations, last 10 years
8
Resolved
1
Unresolved
1
Archived by EPA
6
Any acute record
Yes
Monitoring issues, last 10 years
10

Key facts

  • Yokohl Mutual Water Co draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
  • Highest measured level in the last 10 years: Nitrate, 19 mg/L, federal limit 10 mg/L (1.9 times the limit), 2024.
  • Most recent formal enforcement: compliance order (no penalty) by California, December 2025.
  • Record on file since 1980, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 32 unknown out of 32 service lines.

Check whether Yokohl Mutual Water Co serves your address

Address suggestions by Mapbox

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 13 mg/L, federal limit 10 mg/L (1.3 times the limit)
 330 Apr 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 Yes
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
 350 Oct 17, 2024 Active No
Nitrate
Contaminant limit exceeded
Measured 12 mg/L, federal limit 10 mg/L (1.2 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.
 Yes
Nitrate
Contaminant limit exceeded
Measured 16 mg/L, federal limit 10 mg/L (1.6 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 19 mg/L, federal limit 10 mg/L (1.9 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 13 mg/L, federal limit 10 mg/L (1.3 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 14.5 mg/L, federal limit 10 mg/L (1.5 times the limit)
 330 Jul 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 Yes
Revised Total Coliform Rule
Contaminant limit exceeded
 110 Jan 1, 2020 Resolved Yes

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2025 Active
Enforcement action in place
Revised Total Coliform Rule
Monitoring violation
 Jun 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
LEAD AND COPPER RULE REVISIONS
RPT
 Oct 17, 2024 Active
Consumer Confidence Rule
OTHER
 Jul 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
 Jun 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
 Apr 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
 Jan 1, 2024 Resolved
Consumer Confidence Rule
OTHER
 Oct 2, 2022 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2022 Resolved
Revised Total Coliform Rule
Monitoring violation
 Aug 1, 2021 Resolved

Full record since 1980

EPA's records for Yokohl Mutual Water Co go back to 1980. Before October 19, 2016 they list no health-based violations and 4 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 3
1990s 0 1
2020s 8 10

Enforcement actions

California regulators took 11 formal enforcement actions against Yokohl Mutual Water Co between 2020 and 2025. The most recent was a compliance order (no penalty) in December 2025.

Date By Action Violations covered
Dec 10, 2025 California Compliance order (no penalty) 1 violation: Lead and Copper Rule
Aug 14, 2025 California Compliance order (no penalty) 1 violation: Revised Total Coliform Rule
Oct 28, 2024 California Compliance order (no penalty) 1 violation: Consumer Confidence Rule
Jul 26, 2024 California Compliance order (no penalty) 1 violation: Revised Total Coliform Rule
Jul 24, 2024 California Compliance order (no penalty) 1 violation: Revised Total Coliform Rule
Mar 13, 2024 California Compliance order (no penalty) 1 violation: Revised Total Coliform Rule
Aug 21, 2023 California Compliance order (no penalty) 6 violations (6 health-based): Nitrate
Jan 24, 2023 California Compliance order with a penalty 1 violation: Consumer Confidence Rule
Dec 14, 2022 California Compliance order (no penalty) 1 violation: Consumer Confidence Rule
Oct 5, 2021 California Compliance order (no penalty) 1 violation: Revised Total Coliform Rule
Mar 16, 2020 California Compliance order (no penalty) 1 violation (1 health-based): Revised Total Coliform Rule

What the violations mean

Nitrate

6 incidents

Nitrate exceeded the federal limit

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

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Revised Total Coliform Rule

1 incident

The system did not meet a requirement of the Revised Total Coliform Rule

Coliform and E. coli rules protect against bacteria in the distribution system

Where the water comes from

Yokohl Mutual Water Co draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).

Annual water quality report

Yokohl Mutual Water Co 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 Yokohl Mutual Water Co 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