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Tap water quality report

Somerset, WI

EPA monitoring detected 21 contaminants across the 2 water suppliers serving Somerset. 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
3,409
people served
21
contaminants found
Wisconsin rankings Lead in Wisconsin PFAS in Wisconsin

What was found in Somerset'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
3735 µg/L 37%
of the EPA limit 10000 µg/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
Highest in the city: 15575 µg/L — COUNTRY VIEW HOLDINGS LLC · 75 people · 2019
2/2 SYR4
Nitrate-Nitrite
3543 µg/L 35%
of the EPA limit 10000 µg/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
Highest in the city: 5839 µg/L — COUNTRY VIEW HOLDINGS LLC · 75 people · 2018
2/2 SYR4
Copper
264.6 µg/L 20%
of the EPA limit 1300 µg/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
2/2 SYR4
Fluoride
145 µg/L 3.6%
of the EPA limit 4000 µg/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
Highest in the city: 150 µg/L — COUNTRY VIEW HOLDINGS LLC · 75 people · 2018
2/2 SYR4
Barium
32.99 µg/L 1.6%
of the EPA limit 2000 µg/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2017
2/2 SYR4
Total Haloacetic Acids (HAA5)
18.0827 µg/L 30%
of the EPA limit 60 µg/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
1/2 SYR4
Monochloroacetic Acid
17.4 µg/L
No EPA limit set
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
1/2 SYR4
TTHM
8.404 µg/L 11%
of the EPA limit 80 µg/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
1/2 SYR4
Gross Alpha, Excl. Radon And U
3.154 pCi/L 21%
of the EPA limit 15 pCi/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
Highest in the city: 8.06725 pCi/L — COUNTRY VIEW HOLDINGS LLC · 75 people · 2018
2/2 SYR4
Lead
8.033 µg/L 54%
of the EPA limit 15 µg/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
2/2 SYR4
Dibromochloromethane
3.417 µg/L
No EPA limit set
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
1.5659 pCi/L 31%
of the EPA limit 5 pCi/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
Highest in the city: 3.37 pCi/L — COUNTRY VIEW HOLDINGS LLC · 75 people · 2018
2/2 SYR4
Gross Beta Particle Activity
3.06 pCi/L
No EPA limit set
Highest in the city: COUNTRY VIEW HOLDINGS LLC · 75 people · 2015
1/2 SYR4
Bromodichloromethane
3.0025 µg/L
No EPA limit set
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
1/2 SYR4
Chloroform
2.398 µg/L
No EPA limit set
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
1/2 SYR4
Selenium
1 µg/L 2%
of the EPA limit 50 µg/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2017
1/2 SYR4
Dibromoacetic Acid
0.8000 µg/L
No EPA limit set
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
1/2 SYR4
Dichloroacetic Acid
0.7560 µg/L
No EPA limit set
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
1/2 SYR4
Combined Uranium
0.5730 µg/L 1.9%
of the EPA limit 30 µg/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
2/2 SYR4
Trichloroacetic Acid
0.4200 µg/L
No EPA limit set
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2019
1/2 SYR4
Lead
0.0018 mg/L 12%
of the EPA limit 0.0150 mg/L
Main supplier: SOMERSET WATERWORKS · 3,334 people · 2023
Highest in the city: 0.0115 mg/L — COUNTRY VIEW HOLDINGS LLC · 75 people · 2024
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 Somerset

SupplierPopulation served
SOMERSET WATERWORKS 3,334
COUNTRY VIEW HOLDINGS LLC 75

Frequently asked questions about Somerset tap water

Is Somerset tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Somerset. 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 Somerset?

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

What contaminants are in Somerset's water?

The contaminants EPA monitoring detected in Somerset include Nitrate, Nitrate-Nitrite, Copper, Fluoride, 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.