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East Niles, CA Tap Water Quality 2026

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

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

Main Utility: East Niles Csd PWSID: CA1510006 Updated: 2026 Q2
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1 violation currently open

Lead is 1.40 ppb, 9% of the action level. No PFAS was detected.

D

East Niles earns a D for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 1.40 ppb — 9% of the federal action level
PFAS tested, none detected
4 violations since 2015, 3 health-based
1 violation currently open
East Niles's lead level vs. all California community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.40 ppb — 9% of the federal action level
✓ Lower lead than 77% of California utilities
Population Served
26244
~8293 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
1
1 open of 4 since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
9% of EPA action level
1.40 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.40 ppb, 9% 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.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Unaddressed
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Unaddressed
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.0607 MG/L 0.060 mg/L 2024 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.0705 MG/L 0.060 mg/L 2023 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

1 violation remains open, out of 4 recorded since 2015 (3 health-based).

About the Main Water System

Utility East Niles Csd
PWSID CA1510006
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 26,244
Service connections 8,293
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is East Niles tap water safe to drink? ▼
No federal limit is exceeded on record. 1 violation(s) remain open. Lead is 1.40 ppb, 9% of the action level.
Does East Niles water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to East Niles? ▼
East Niles Csd (PWSID CA1510006), one of 2 systems serving this area. Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2024-08-27. No significant deficiencies were recorded.

What Should East Niles Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
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
Follow the open violation
This system has an unresolved violation. Contact the supplier for its corrective-action schedule.

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