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Pierce, ID Tap Water Quality 2026

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

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

Main Utility: Pierce City Of PWSID: ID2180027 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 4.00 ppb, 27% of the action level and no violations are open. No PFAS was detected.

C

Pierce earns a C for water quality

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

Lead: 4.00 ppb — 27% of the federal action level
PFAS tested, none detected
10 violations since 2015, 1 health-based
No violations currently open
Pierce's lead level vs. all Idaho community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 4.00 ppb — 27% of the federal action level
✓ Lower lead than 24% of Idaho utilities
Population Served
467
~347 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
10 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
27% of EPA action level
4.00 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.
127.7% of EPA action level
1,660 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 4.00 ppb, 27% 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
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Unaddressed
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.21 RATIO TT 2023 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2021 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2018 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2018 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2018 Resolved
Coliform (TCR) MONITORING AND REPORTING — 5% of samples 2015 Archived
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

10 violations are on record since 2015, of which 1 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Pierce City Of
PWSID ID2180027
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 467
Service connections 347
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Pierce tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 4.00 ppb, 27% of the action level.
Does Pierce water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Pierce? ▼
Pierce City Of (PWSID ID2180027). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2024-03-20. Inspectors recorded 1 significant deficiency.

What Should Pierce 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
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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