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Water system · PWSID 090600148

Santa Rosa Rancheria

100
Excellent
PurityRadar safety score

PWSID

090600148

State

California

City

Lemoore

Population served

1,000

Primary source

GWP

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

110

Violations on record

0

Unaddressed

25

Health-based

290

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2025. Official EPA record →

Monitoring & reporting · EPA contaminant 0999 began Jul 2025 Resolved
Monitoring · Lead & Copper Rule began Apr 2025 Resolved
Other · EPA contaminant 7500 began Apr 2025 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2025 Resolved
Monitoring · Lead & Copper Rule began Mar 2025 Resolved
Other · EPA contaminant 7500 began Mar 2025 Resolved
Monitoring · Lead & Copper Rule began Feb 2025 Resolved
Other · EPA contaminant 7500 began Feb 2025 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2025 Resolved
Monitoring · Lead & Copper Rule began Nov 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2024 Resolved
Monitoring · Lead & Copper Rule began Oct 2024 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Dec 2025
  • EPA/federal action · EIA Dec 2025
  • EPA/federal action · EOX Sep 2025
  • EPA/federal action · EOX Sep 2025
  • EPA/federal action · EIA Sep 2025
  • EPA/federal action · EIA Sep 2025
  • EPA/federal action · EOX Aug 2025
  • EPA/federal action · EOX Aug 2025

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest Jul 2022

0.4 · max 0.4 mg/L · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system 090600148 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.