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Little River, CA Tap Water Quality 2026

Water quality report for Little River, CA — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Little River's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Point Arena Rancheria PWSID: 090600145 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 5.00 ppb, 33% of the action level and no violations are open. PFAS has never been sampled at this system.

D

Little River earns a D for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 5.00 ppb — 33% of the federal action level
PFAS never sampled at this system
29 violations since 2015, 8 health-based
No violations currently open
Little River's lead level vs. all California community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 5.00 ppb — 33% of the federal action level
✓ Lower lead than 18% of California utilities
Population Served
~69 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
29 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
33% of EPA action level
5.00 ppb
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
115.4% of EPA action level
1,500 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 5.00 ppb, 33% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2022 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2022 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2022 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2021 Resolved
Consumer Confidence Rule OTHER — — 2021 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2021 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2020 Resolved
Public Notice OTHER — — 2020 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Public Notice OTHER — — 2020 Resolved
Stage 1 Disinfectants and Disinfection Byproducts Rule TREATMENT TECHNIQUE — — 2019 Resolved
Consumer Confidence Rule OTHER — — 2019 Resolved
Revised Total Coliform Rule TREATMENT TECHNIQUE — — 2019 Resolved
E. COLI MONITORING AND REPORTING — 0 2019 Resolved
Public Notice OTHER — — 2019 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2018 Resolved
Public Notice OTHER — — 2018 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2018 Resolved
Consumer Confidence Rule OTHER — — 2018 Resolved
Public Notice OTHER — — 2018 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2018 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2017 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2017 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2017 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2017 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2017 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2016 Resolved
Coliform (TCR) MCL EXCEEDANCE — 5% of samples 2015 Resolved
Public Notice OTHER — — 2015 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

29 violations are on record since 2015, of which 8 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Point Arena Rancheria
PWSID 090600145
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served
Service connections 69
Systems serving this area 1
Regulator US EPA (tribal primacy)
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Little River tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 5.00 ppb, 33% of the action level.
Does Little River water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Little River? ▼
Point Arena Rancheria (PWSID 090600145). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2023-06-26. Inspectors recorded 2 significant deficiencies.

What Should Little River Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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