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Tap water quality report

Cassville, WI

EPA monitoring detected 22 contaminants across the 2 water suppliers serving Cassville. 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
817
people served
22
contaminants found
Wisconsin rankings Lead in Wisconsin PFAS in Wisconsin

What was found in Cassville'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
2350 µg/L 24%
of the EPA limit 10000 µg/L
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
Nitrate-Nitrite
2329 µg/L 23%
of the EPA limit 10000 µg/L
Main supplier: CASSVILLE WATERWORKS · 777 people · 2017
1/2 SYR4
Fluoride
1410 µg/L 35%
of the EPA limit 4000 µg/L
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
2/2 SYR4
Copper
441.05 µg/L 34%
of the EPA limit 1300 µg/L
Main supplier: CASSVILLE WATERWORKS · 777 people · 2017
2/2 SYR4
Barium
114 µg/L 5.7%
of the EPA limit 2000 µg/L
Main supplier: CASSVILLE WATERWORKS · 777 people · 2017
2/2 SYR4
Total Haloacetic Acids (HAA5)
37.2752 µg/L 62%
of the EPA limit 60 µg/L
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
Monochloroacetic Acid
35.775 µg/L
No EPA limit set
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
TTHM
15.063 µg/L 19%
of the EPA limit 80 µg/L
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
Lead
11.4025 µg/L 76%
of the EPA limit 15 µg/L
Main supplier: CASSVILLE WATERWORKS · 777 people · 2017
2/2 SYR4
Chloroform
6.26 µg/L
No EPA limit set
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
Dibromochloromethane
4.6185 µg/L
No EPA limit set
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
Bromodichloromethane
3.72 µg/L
No EPA limit set
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
Bromoform
2.995 µg/L
No EPA limit set
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
Gross Alpha, Excl. Radon And U
1 pCi/L 6.7%
of the EPA limit 15 pCi/L
Main supplier: CASSVILLE WATERWORKS · 777 people · 2014
Highest in the city: 2.35 pCi/L — BLUFFSIDE COURT · 40 people · 2015
2/2 SYR4
Combined Radium (-226 And -228)
1.19 pCi/L 24%
of the EPA limit 5 pCi/L
Main supplier: CASSVILLE WATERWORKS · 777 people · 2014
Highest in the city: 2.2875 pCi/L — BLUFFSIDE COURT · 40 people · 2015
2/2 SYR4
Dichloroacetic Acid
2.095 µg/L
No EPA limit set
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
Monobromoacetic Acid
1.46 µg/L
No EPA limit set
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
Arsenic
1.4 µg/L 14%
of the EPA limit 10 µg/L
Highest in the city: BLUFFSIDE COURT · 40 people · 2018
1/2 SYR4
Trichloroacetic Acid
1.1694 µg/L
No EPA limit set
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
Dibromoacetic Acid
1.0322 µg/L
No EPA limit set
Main supplier: CASSVILLE WATERWORKS · 777 people · 2019
1/2 SYR4
Selenium
0.8000 µg/L 1.6%
of the EPA limit 50 µg/L
Main supplier: CASSVILLE WATERWORKS · 777 people · 2017
1/2 SYR4
Lead
0.0151 mg/L 101%
above the EPA limit of 0.0150 mg/L
Main supplier: CASSVILLE WATERWORKS · 777 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 Cassville

SupplierPopulation served
CASSVILLE WATERWORKS 777
BLUFFSIDE COURT 40

Frequently asked questions about Cassville tap water

Is Cassville tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Cassville. 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 Cassville?

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

What contaminants are in Cassville's water?

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