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Tap water quality report

Notus, ID

EPA monitoring detected 11 contaminants across the 4 water suppliers serving Notus. 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.

4
water suppliers
779
people served
11
contaminants found
Idaho rankings Lead in Idaho PFAS in Idaho

What was found in Notus'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
480 µg/L 4.8%
of the EPA limit 10000 µg/L
Main supplier: NOTUS CITY OF · 539 people · 2019
Highest in the city: 8110 µg/L — LAKEVIEW WATER COMPANY 1 · 100 people · 2019
3/4 SYR4
Fluoride
380 µg/L 9.5%
of the EPA limit 4000 µg/L
Main supplier: NOTUS CITY OF · 539 people · 2019
Highest in the city: 512.7 µg/L — LAKEVIEW WATER COMPANY 1 · 100 people · 2019
3/4 SYR4
Nitrate-Nitrite
299.2 µg/L 3%
of the EPA limit 10000 µg/L
Highest in the city: LAKEVIEW WATER COMPANY 1 · 100 people · 2019
1/4 SYR4
TTHM
35.2 µg/L 44%
of the EPA limit 80 µg/L
Main supplier: NOTUS CITY OF · 539 people · 2019
1/4 SYR4
Barium
28 µg/L 1.4%
of the EPA limit 2000 µg/L
Highest in the city: DECOY INN AND RV PARK · 75 people · 2019
2/4 SYR4
Total Haloacetic Acids (HAA5)
11.156 µg/L 19%
of the EPA limit 60 µg/L
Main supplier: NOTUS CITY OF · 539 people · 2019
1/4 SYR4
Arsenic
10 µg/L 100%
of the EPA limit 10 µg/L
Highest in the city: DECOY INN AND RV PARK · 75 people · 2019
2/4 SYR4
Combined Uranium
5.825 µg/L 19%
of the EPA limit 30 µg/L
Highest in the city: DECOY INN AND RV PARK · 75 people · 2019
2/4 SYR4
Gross Alpha, Excl. Radon And U
5.261 pCi/L 35%
of the EPA limit 15 pCi/L
Highest in the city: WEST RIVER · 65 people · 2019
1/4 SYR4
Combined Radium (-226 And -228)
4.42 pCi/L 88%
of the EPA limit 5 pCi/L
Highest in the city: WEST RIVER · 65 people · 2019
2/4 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: NOTUS CITY OF · 539 people · 2025
Highest in the city: 0.0070 mg/L — WEST RIVER · 65 people · 2024
4/4 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 Notus

SupplierPopulation served
NOTUS CITY OF 539
LAKEVIEW WATER COMPANY 1 100
DECOY INN AND RV PARK 75
WEST RIVER 65

Frequently asked questions about Notus tap water

Is Notus tap water safe to drink?

EPA testing detected 11 contaminants in the water serving Notus. 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 Notus?

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

What contaminants are in Notus's water?

The contaminants EPA monitoring detected in Notus include Nitrate, Fluoride, Nitrate-Nitrite, TTHM, 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.