Tap WaterIndex

← Idaho

Tap water quality report

Elk City, ID

EPA monitoring detected 6 contaminants across the 1 water supplier serving Elk City. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

1
water supplier
320
people served
6
contaminants found
Idaho rankings Lead in Idaho PFAS in Idaho

What was found in Elk City's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
107 µg/L 1.1%
of the EPA limit 10000 µg/L
Main supplier: ELK CITY WATER AND SEWER ASSN · 320 people · 2019
1/1 SYR4
TTHM
97.37 µg/L 122%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: ELK CITY WATER AND SEWER ASSN · 320 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
75.75 µg/L 126%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: ELK CITY WATER AND SEWER ASSN · 320 people · 2019
1/1 SYR4
Barium
19.6 µg/L 1%
of the EPA limit 2000 µg/L
Main supplier: ELK CITY WATER AND SEWER ASSN · 320 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
0.7463 pCi/L 15%
of the EPA limit 5 pCi/L
Main supplier: ELK CITY WATER AND SEWER ASSN · 320 people · 2019
1/1 SYR4
Lead
0.0090 mg/L 60%
of the EPA limit 0.0150 mg/L
Main supplier: ELK CITY WATER AND SEWER ASSN · 320 people · 2023
1/1 LCR
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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Elk City

SupplierPopulation served
ELK CITY WATER AND SEWER ASSN 320

Frequently asked questions about Elk City tap water

Is Elk City tap water safe to drink?

EPA testing detected 6 contaminants in the water serving Elk City. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Elk City?

1 public water supplier report drinking-water monitoring for Elk City, Idaho to the EPA. Each is listed above with its population served.

What contaminants are in Elk City's water?

The contaminants EPA monitoring detected in Elk City include Nitrate, TTHM, Total Haloacetic Acids (HAA5), Barium, Combined Radium (-226 And -228). The full list, with the level at the main supplier and the data source, is in the table above.

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.