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Tap water quality report

St Anthony, ID

EPA monitoring detected 16 contaminants across the 3 water suppliers serving St Anthony. 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.

3
water suppliers
3,926
people served
16
contaminants found

What was found in St Anthony'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
1905 µg/L 19%
of the EPA limit 10000 µg/L
Main supplier: ST ANTHONY · 3,606 people · 2019
3/3 SYR4
Fluoride
1585 µg/L 40%
of the EPA limit 4000 µg/L
Main supplier: ST ANTHONY · 3,606 people · 2012
Highest in the city: 1800 µg/L — MOUNTAIN VIEW COURT · 40 people · 2019
3/3 SYR4
Nitrate-Nitrite
1300 µg/L 13%
of the EPA limit 10000 µg/L
Main supplier: ST ANTHONY · 3,606 people · 2012
Highest in the city: 1350 µg/L — MOUNTAIN VIEW COURT · 40 people · 2019
3/3 SYR4
Lithium
33 µg/L
No EPA limit set
Main supplier: ST ANTHONY · 3,606 people · 2023
1/3 UCMR-5
Barium
19.85 µg/L 1%
of the EPA limit 2000 µg/L
Main supplier: ST ANTHONY · 3,606 people · 2012
Highest in the city: 23 µg/L — IDJC JUVENILE CORRECTIONS CENTER · 280 people · 2019
3/3 SYR4
TTHM
5.276 µg/L 6.6%
of the EPA limit 80 µg/L
Main supplier: ST ANTHONY · 3,606 people · 2019
1/3 SYR4
Monochloroacetic Acid
2.2 µg/L
No EPA limit set
Main supplier: ST ANTHONY · 3,606 people · 2019
1/3 SYR4
Arsenic
1.95 µg/L 20%
of the EPA limit 10 µg/L
Main supplier: ST ANTHONY · 3,606 people · 2019
Highest in the city: 2 µg/L — MOUNTAIN VIEW COURT · 40 people · 2013
3/3 SYR4
Gross Alpha, Excl. Radon And U
0.9300 pCi/L 6.2%
of the EPA limit 15 pCi/L
Main supplier: ST ANTHONY · 3,606 people · 2012
Highest in the city: 1.59 pCi/L — MOUNTAIN VIEW COURT · 40 people · 2016
3/3 SYR4
Combined Radium (-226 And -228)
0.6125 pCi/L 12%
of the EPA limit 5 pCi/L
Main supplier: ST ANTHONY · 3,606 people · 2012
Highest in the city: 1.14 pCi/L — IDJC JUVENILE CORRECTIONS CENTER · 280 people · 2016
3/3 SYR4
Dibromochloromethane
1.06 µg/L
No EPA limit set
Main supplier: ST ANTHONY · 3,606 people · 2019
1/3 SYR4
Antimony, Total
1 µg/L 17%
of the EPA limit 6 µg/L
Main supplier: ST ANTHONY · 3,606 people · 2012
1/3 SYR4
Bromoform
0.7400 µg/L
No EPA limit set
Main supplier: ST ANTHONY · 3,606 people · 2019
1/3 SYR4
Bromodichloromethane
0.5100 µg/L
No EPA limit set
Main supplier: ST ANTHONY · 3,606 people · 2019
1/3 SYR4
Combined Uranium
0.5040 µg/L 1.7%
of the EPA limit 30 µg/L
Main supplier: ST ANTHONY · 3,606 people · 2012
2/3 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: ST ANTHONY · 3,606 people · 2025
3/3 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 St Anthony

SupplierPopulation served
ST ANTHONY 3,606
IDJC JUVENILE CORRECTIONS CENTER 280
MOUNTAIN VIEW COURT 40

Frequently asked questions about St Anthony tap water

Is St Anthony tap water safe to drink?

EPA testing detected 16 contaminants in the water serving St Anthony. 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 St Anthony?

3 public water suppliers report drinking-water monitoring for St Anthony, Idaho to the EPA. Each is listed above with its population served.

What contaminants are in St Anthony's water?

The contaminants EPA monitoring detected in St Anthony include Nitrate, Fluoride, Nitrate-Nitrite, Lithium, Barium. 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.