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Elk City, ID Tap Water Quality 2026

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

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

Main Utility: Elk City Water And Sewer Assn PWSID: ID2250017 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 9.00 ppb, 60% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Elk City earns a B for water quality

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

Lead: 9.00 ppb — 60% of the federal action level
PFAS never sampled at this system
68 violations since 2015, 39 health-based
No violations currently open
Elk City's lead level vs. all Idaho community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 9.00 ppb — 60% of the federal action level
✓ Lower lead than 4% of Idaho utilities
Population Served
104
~145 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
68 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
60% of EPA action level
9.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 9.00 ppb, 60% 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
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2025 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2025 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.96 RATIO TT 2023 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2023 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.97 RATIO TT 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.94 RATIO TT 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.99 RATIO TT 2022 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.9 RATIO TT 2022 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.83 RATIO TT 2021 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.82 RATIO TT 2021 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.83 RATIO TT 2021 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.82 RATIO TT 2021 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2021 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.83 RATIO TT 2021 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.84 RATIO TT 2021 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2021 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.96 RATIO TT 2021 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.81 RATIO TT 2021 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2020 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2020 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2020 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2020 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2020 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2020 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2020 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2020 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2020 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2020 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2020 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2020 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2020 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.84 RATIO TT 2020 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2020 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.87 RATIO TT 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2019 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2019 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.91 RATIO TT 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.92 RATIO TT 2019 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2019 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2019 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.94 RATIO TT 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.91 RATIO TT 2019 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2019 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.95 RATIO TT 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.88 RATIO TT 2019 Resolved
Cryptosporidium MONITORING AND REPORTING — — 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.97 RATIO TT 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.98 RATIO TT 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.91 RATIO TT 2018 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2018 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.97 RATIO TT 2018 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.97 RATIO TT 2018 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2018 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.92 RATIO TT 2018 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2018 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2017 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2017 Archived
TTHM MCL EXCEEDANCE 0.081 MG/L 0.080 mg/L 2017 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 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

68 violations are on record since 2015, of which 39 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Elk City Water And Sewer Assn
PWSID ID2250017
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 104
Service connections 145
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Elk City tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 9.00 ppb, 60% of the action level.
Does Elk City 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 Elk City? ▼
Elk City Water And Sewer Assn (PWSID ID2250017). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-08-18. No significant deficiencies were recorded.

What Should Elk City 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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