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Tap water quality report

Cassville Waterworks

EPA monitoring tested this supplier for 73 contaminants and detected 21. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

73
contaminants tested
21
detected
777
people served
5
health-based violations
Wisconsin rankingsLead in WisconsinPFAS in Wisconsin
Water source
Ground water
Ownership
Local government
Counties served
Grant

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

5
health-based violations
12
violations on file
3
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2019-08-01 → 2019-08-31
MCL Health-based Resolved 2019-08-01 → 2019-08-31
MCL Health-based Resolved 2019-08-01 → 2019-08-31
MCL Health-based Resolved 2019-08-01 → 2019-08-31
MCL Health-based Resolved 2019-08-01 → 2019-08-31
MR Monitoring Resolved 2023-06-01
MR Monitoring Resolved 2023-06-01
MR Monitoring Resolved 2023-06-01
MR Monitoring Resolved 2023-06-01
MR Monitoring Unaddressed 2012-01-01

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Fluoride
1410 µg/L 35%
of the EPA limit 4000 µg/L
worst single sample: 1640 µg/L
96/192 SYR4 2012–2019
Copper
441.05 µg/L 34%
of the EPA limit 1300 µg/L
worst single sample: 464 µg/L
18/22 SYR4 2014–2017
Lead
0.0151 mg/L 101%
above the EPA limit of 0.0150 mg/L
 16/16 LCR 2024
Nitrate
2350 µg/L 24%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
11.4025 µg/L 76%
of the EPA limit 15 µg/L
worst single sample: 13.3 µg/L
12/22 SYR4 2014–2017
Total Haloacetic Acids (HAA5)
37.2752 µg/L 62%
of the EPA limit 60 µg/L
worst single sample: 44.12 µg/L
7/7 SYR4 2013–2019
Bromodichloromethane
3.72 µg/L
No EPA limit set
worst single sample: 3.87 µg/L
6/7 SYR4 2013–2019
Chloroform
6.26 µg/L
No EPA limit set
worst single sample: 6.53 µg/L
6/7 SYR4 2013–2019
Monochloroacetic Acid
35.775 µg/L
No EPA limit set
worst single sample: 41.5 µg/L
6/7 SYR4 2013–2019
TTHM
15.063 µg/L 19%
of the EPA limit 80 µg/L
worst single sample: 15.77 µg/L
6/7 SYR4 2013–2019
Dibromochloromethane
4.6185 µg/L
No EPA limit set
worst single sample: 4.89 µg/L
4/7 SYR4 2013–2019
Bromoform
2.995 µg/L
No EPA limit set
worst single sample: 3.13 µg/L
3/7 SYR4 2013–2019
Dibromoacetic Acid
1.0322 µg/L
No EPA limit set
worst single sample: 1.04 µg/L
3/7 SYR4 2013–2019
Dichloroacetic Acid
2.095 µg/L
No EPA limit set
worst single sample: 2.21 µg/L
3/7 SYR4 2013–2019
Trichloroacetic Acid
1.1694 µg/L
No EPA limit set
worst single sample: 1.2 µg/L
3/7 SYR4 2013–2019
Barium
114 µg/L 5.7%
of the EPA limit 2000 µg/L
worst single sample: 115 µg/L
2/2 SYR4 2014–2017
Nitrate-Nitrite
2329 µg/L 23%
of the EPA limit 10000 µg/L
worst single sample: 2350 µg/L
2/2 SYR4 2014–2017
Combined Radium (-226 And -228)
1.19 pCi/L 24%
of the EPA limit 5 pCi/L
 1/1 SYR4 2014
Gross Alpha, Excl. Radon And U
1 pCi/L 6.7%
of the EPA limit 15 pCi/L
 1/1 SYR4 2014
Monobromoacetic Acid
1.46 µg/L
No EPA limit set
 1/7 SYR4 2013–2019
Selenium
0.8000 µg/L 1.6%
of the EPA limit 50 µg/L
 1/2 SYR4 2014–2017
52 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Frequently asked questions about Cassville Waterworks

Is Cassville Waterworks tap water safe to drink?

EPA monitoring detected 21 contaminants in Cassville Waterworks's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Cassville Waterworks's water?

EPA monitoring detected Fluoride, Copper, Lead, Nitrate, Lead, and others. The full list with the level and data source for each is above.

How many people does Cassville Waterworks serve?

Cassville Waterworks reports serving 777 people in Wisconsin, per its EPA record.

Has Cassville Waterworks had any water quality violations?

The EPA has 12 violations on file for Cassville Waterworks, of which 5 are health-based (a contaminant limit or required treatment was breached) and 3 remain open. The rest are monitoring or reporting failures.

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.