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Tap water quality report

Elk City Water and Sewer Assn

EPA monitoring tested this supplier for 18 contaminants and detected 6. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

18
contaminants tested
6
detected
320
people served
206
health-based violations
Idaho rankingsLead in IdahoPFAS in Idaho
Water source
Surface water
Ownership
Private
Counties served
Idaho

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

206
health-based violations
336
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2023-07-01 → 2023-09-30
TT Health-based Resolved 2023-07-01 → 2023-09-30
TT Health-based Resolved 2023-07-01 → 2023-09-30
TT Health-based Resolved 2023-07-01 → 2023-09-30
TT Health-based Resolved 2023-04-01 → 2023-06-30
TT Health-based Resolved 2023-04-01 → 2023-06-30
TT Health-based Resolved 2023-04-01 → 2023-06-30
TT Health-based Resolved 2023-04-01 → 2023-06-30
TT Health-based Resolved 2023-01-01 → 2023-03-31
TT Health-based Resolved 2023-01-01 → 2023-03-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
97.37 µg/L 122%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 105 µg/L
32/32 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
75.75 µg/L 126%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 81.2 µg/L
31/32 SYR4 2012–2019
Lead
0.0090 mg/L 60%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2023
Nitrate
107 µg/L 1.1%
of the EPA limit 10000 µg/L
 6/18 SYR4 2012–2019
Combined Radium (-226 And -228)
0.7463 pCi/L 15%
of the EPA limit 5 pCi/L
worst single sample: 0.7500 pCi/L
2/2 SYR4 2013–2019
Barium
19.6 µg/L 1%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
12 contaminants tested, none detected
Antimony, TotalArsenicBeryllium, TotalCadmiumChromiumCombined UraniumFluorideGross Alpha, Excl. Radon And UMercuryNitriteSeleniumThallium, Total

Utility contact

Contact
EDMONDSON, MIKE
Phone
208-842-2452
Email
[email protected]

Frequently asked questions about Elk City Water and Sewer Assn

Is Elk City Water and Sewer Assn tap water safe to drink?

EPA monitoring detected 6 contaminants in Elk City Water and Sewer Assn's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Elk City Water and Sewer Assn's water?

EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Lead, Nitrate, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does Elk City Water and Sewer Assn serve?

Elk City Water and Sewer Assn reports serving 320 people in Idaho, per its EPA record.

Has Elk City Water and Sewer Assn had any water quality violations?

The EPA has 336 violations on file for Elk City Water and Sewer Assn, of which 206 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.