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Tap water quality report

Cooperstown, ND

EPA monitoring detected 12 contaminants across the 1 water supplier serving Cooperstown. 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
984
people served
12
contaminants found
North Dakota rankings Lead in North Dakota PFAS in North Dakota

What was found in Cooperstown'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
Fluoride
986 µg/L 25%
of the EPA limit 4000 µg/L
Main supplier: COOPERSTOWN CITY OF · 984 people · 2017
1/1 SYR4
Copper
800.25 µg/L 62%
of the EPA limit 1300 µg/L
Main supplier: COOPERSTOWN CITY OF · 984 people · 2018
1/1 SYR4
Nitrate-Nitrite
267 µg/L 2.7%
of the EPA limit 10000 µg/L
Main supplier: COOPERSTOWN CITY OF · 984 people · 2019
1/1 SYR4
Barium
9.94 µg/L 0.5%
of the EPA limit 2000 µg/L
Main supplier: COOPERSTOWN CITY OF · 984 people · 2017
1/1 SYR4
Arsenic
7.12 µg/L 71%
of the EPA limit 10 µg/L
Main supplier: COOPERSTOWN CITY OF · 984 people · 2016
1/1 SYR4
Gross Alpha, Excl. Radon And U
3.98 pCi/L 27%
of the EPA limit 15 pCi/L
Main supplier: COOPERSTOWN CITY OF · 984 people · 2017
1/1 SYR4
Lead
3.6135 µg/L 24%
of the EPA limit 15 µg/L
Main supplier: COOPERSTOWN CITY OF · 984 people · 2018
1/1 SYR4
Dibromoacetic Acid
2.13 µg/L
No EPA limit set
Main supplier: COOPERSTOWN CITY OF · 984 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
2.13 µg/L 3.6%
of the EPA limit 60 µg/L
Main supplier: COOPERSTOWN CITY OF · 984 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
0.6100 pCi/L 12%
of the EPA limit 5 pCi/L
Main supplier: COOPERSTOWN CITY OF · 984 people · 2017
1/1 SYR4
Combined Uranium
0.1200 µg/L 0.4%
of the EPA limit 30 µg/L
Main supplier: COOPERSTOWN CITY OF · 984 people · 2017
1/1 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: COOPERSTOWN CITY OF · 984 people · 2024
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 Cooperstown

SupplierPopulation served
COOPERSTOWN CITY OF 984

Frequently asked questions about Cooperstown tap water

Is Cooperstown tap water safe to drink?

EPA testing detected 12 contaminants in the water serving Cooperstown. 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 Cooperstown?

1 public water supplier report drinking-water monitoring for Cooperstown, North Dakota to the EPA. Each is listed above with its population served.

What contaminants are in Cooperstown's water?

The contaminants EPA monitoring detected in Cooperstown include Fluoride, Copper, Nitrate-Nitrite, Barium, Arsenic. 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.