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Tap water quality report

Fort Peck, MT

EPA monitoring detected 17 contaminants across the 2 water suppliers serving Fort Peck. 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.

2
water suppliers
903
people served
17
contaminants found
Montana rankings Lead in Montana PFAS in Montana

What was found in Fort Peck'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
Copper
943 µg/L 73%
of the EPA limit 1300 µg/L
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
2/2 SYR4
TTHM
87.7 µg/L 110%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
2/2 SYR4
Chloroform
63.7 µg/L
No EPA limit set
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
55.3 µg/L 92%
of the EPA limit 60 µg/L
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
Highest in the city: 63.2 µg/L — FORT PECK TOWN OF · 240 people · 2019
2/2 SYR4
Nitrate-Nitrite
50 µg/L 0.5%
of the EPA limit 10000 µg/L
Highest in the city: FORT PECK TOWN OF · 240 people · 2019
1/2 SYR4
Trichloroacetic Acid
26.8 µg/L
No EPA limit set
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
Highest in the city: 34.8 µg/L — FORT PECK TOWN OF · 240 people · 2019
2/2 SYR4
Dichloroacetic Acid
27.9 µg/L
No EPA limit set
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
Highest in the city: 28.4 µg/L — FORT PECK TOWN OF · 240 people · 2019
2/2 SYR4
Bromodichloromethane
21 µg/L
No EPA limit set
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
2/2 SYR4
Dibromochloromethane
6.68 µg/L
No EPA limit set
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
2/2 SYR4
Arsenic
4.65 µg/L 47%
of the EPA limit 10 µg/L
Highest in the city: FORT PECK TOWN OF · 240 people · 2019
1/2 SYR4
Lead
4.3 µg/L 29%
of the EPA limit 15 µg/L
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
2/2 SYR4
Monochloroacetic Acid
3.3 µg/L
No EPA limit set
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
Highest in the city: 3.44 µg/L — FORT PECK TOWN OF · 240 people · 2019
2/2 SYR4
Combined Uranium
3 µg/L 10%
of the EPA limit 30 µg/L
Highest in the city: FORT PECK TOWN OF · 240 people · 2014
1/2 SYR4
Dibromoacetic Acid
1.36 µg/L
No EPA limit set
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
2/2 SYR4
Monobromoacetic Acid
0.8750 µg/L
No EPA limit set
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2019
2/2 SYR4
Combined Radium (-226 And -228)
0.8000 pCi/L 16%
of the EPA limit 5 pCi/L
Highest in the city: FORT PECK TOWN OF · 240 people · 2014
1/2 SYR4
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
Main supplier: FORT PECK RURAL COUNTY WATER DISTRICT · 663 people · 2025
2/2 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 Fort Peck

SupplierPopulation served
FORT PECK RURAL COUNTY WATER DISTRICT 663
FORT PECK TOWN OF 240

Frequently asked questions about Fort Peck tap water

Is Fort Peck tap water safe to drink?

EPA testing detected 17 contaminants in the water serving Fort Peck. 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 Fort Peck?

2 public water suppliers report drinking-water monitoring for Fort Peck, Montana to the EPA. Each is listed above with its population served.

What contaminants are in Fort Peck's water?

The contaminants EPA monitoring detected in Fort Peck include Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Nitrate-Nitrite. 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.