Public water system record

NPS-Grant Grove

Serves an area of Fresno County and Tulare County, CA that includes Wilsonia · 2,950 people served

Federal records show no health-based violations and 3 monitoring/reporting issues for NPS-Grant Grove in the last ten years. At least one of these issues remains unresolved.

  • CA1010501
  • THREE RIVERS
  • CA
  • 2,950 served

System profile

Source water Groundwater
ZIP 93271
EPA system ID CA1010501

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
3

Key facts

  • NPS-Grant Grove draws water from 2 wells.
  • Most recent formal enforcement: compliance order (no penalty) by California, April 2018.
  • Record on file since 2000, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 129 unknown out of 129 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.

None since October 2016.

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 REVISIONS
RPT
Jul 2, 2025 Active
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2018 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2017 Resolved

Full record since 2000

EPA's records for NPS-Grant Grove go back to 2000. Before October 19, 2016 they list no health-based violations and 1 monitoring or reporting violation.

Violations that began in Health-based Monitoring and reporting
2000s 0 1
October 19, 2016 to 2019 0 2
2020s 0 1

Enforcement actions

California regulators took 1 formal enforcement action against NPS-Grant Grove in 2018. The most recent was a compliance order (no penalty) in April 2018.

Date By Action Violations covered
Apr 20, 2018 California Compliance order (no penalty) 2 violations: Lead and Copper Rule

Where the water comes from

NPS-Grant Grove draws water from 2 wells.

Annual water quality report

NPS-Grant Grove 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.