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Tap water quality report

Underwood, ND

EPA monitoring detected 12 contaminants across the 1 water supplier serving Underwood. 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
778
people served
12
contaminants found
North Dakota rankings Lead in North Dakota PFAS in North Dakota

What was found in Underwood'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
795.05 µg/L 61%
of the EPA limit 1300 µg/L
Main supplier: UNDERWOOD CITY OF · 778 people · 2019
1/1 SYR4
TTHM
65.262 µg/L 82%
of the EPA limit 80 µg/L
Main supplier: UNDERWOOD CITY OF · 778 people · 2019
1/1 SYR4
Chloroform
50.956 µg/L
No EPA limit set
Main supplier: UNDERWOOD CITY OF · 778 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
49.324 µg/L 82%
of the EPA limit 60 µg/L
Main supplier: UNDERWOOD CITY OF · 778 people · 2019
1/1 SYR4
Dichloroacetic Acid
26 µg/L
No EPA limit set
Main supplier: UNDERWOOD CITY OF · 778 people · 2019
1/1 SYR4
Trichloroacetic Acid
22.94 µg/L
No EPA limit set
Main supplier: UNDERWOOD CITY OF · 778 people · 2019
1/1 SYR4
Bromodichloromethane
13.624 µg/L
No EPA limit set
Main supplier: UNDERWOOD CITY OF · 778 people · 2019
1/1 SYR4
Lead
4.4785 µg/L 30%
of the EPA limit 15 µg/L
Main supplier: UNDERWOOD CITY OF · 778 people · 2019
1/1 SYR4
Monochloroacetic Acid
4.384 µg/L
No EPA limit set
Main supplier: UNDERWOOD CITY OF · 778 people · 2019
1/1 SYR4
Dibromochloromethane
3.442 µg/L
No EPA limit set
Main supplier: UNDERWOOD CITY OF · 778 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.1195 µg/L
No EPA limit set
Main supplier: UNDERWOOD CITY OF · 778 people · 2019
1/1 SYR4
Lead
0.0026 mg/L 17%
of the EPA limit 0.0150 mg/L
Main supplier: UNDERWOOD CITY OF · 778 people · 2025
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 Underwood

SupplierPopulation served
UNDERWOOD CITY OF 778

Frequently asked questions about Underwood tap water

Is Underwood tap water safe to drink?

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

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

What contaminants are in Underwood's water?

The contaminants EPA monitoring detected in Underwood include Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Dichloroacetic Acid. 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.