Tap WaterIndex

← Wisconsin

Tap water quality report

Mount Hope Waterworks

EPA monitoring tested this supplier for 75 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

75
contaminants tested
14
detected
181
people served
22
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.

22
health-based violations
36
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2023-11-02
TT Health-based Resolved 2023-11-02
MCL Health-based Resolved 2014-01-01 → 2014-03-31
MCL Health-based Resolved 2014-01-01 → 2014-03-31
MCL Health-based Resolved 2014-01-01 → 2014-03-31
MCL Health-based Resolved 2014-01-01 → 2014-03-31
MCL Health-based Resolved 1995-12-01 → 1995-12-31
MCL Health-based Resolved 1995-12-01 → 1995-12-31
MCL Health-based Resolved 1995-12-01 → 1995-12-31
MCL Health-based Resolved 1995-12-01 → 1995-12-31

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
Lead
0.0015 mg/L 10%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2023
Nitrate
2300 µg/L 23%
of the EPA limit 10000 µg/L
 12/12 SYR4 2012–2019
Copper
263.15 µg/L 20%
of the EPA limit 1300 µg/L
worst single sample: 296 µg/L
10/10 SYR4 2014–2017
Di(2-ethylhexyl) Phthalate
6.78 µg/L 113%
of the EPA limit, at the 95th percentile of samples — 6 µg/L
worst single sample: 7.2 µg/L
7/10 SYR4 2014–2019
Lead
7.4 µg/L 49%
of the EPA limit 15 µg/L
worst single sample: 8 µg/L
4/10 SYR4 2014–2017
Benzene
63.8 µg/L 1276%
of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 67 µg/L
3/11 SYR4 2013–2019
Ethylbenzene
52.27 µg/L 7.5%
of the EPA limit 700 µg/L
worst single sample: 57 µg/L
3/11 SYR4 2013–2019
Xylenes, Total
51.14 µg/L 0.5%
of the EPA limit 10000 µg/L
worst single sample: 55 µg/L
3/11 SYR4 2013–2019
Barium
35.85 µg/L 1.8%
of the EPA limit 2000 µg/L
worst single sample: 36 µg/L
2/2 SYR4 2014–2017
Nitrate-Nitrite
1495 µg/L 15%
of the EPA limit 10000 µg/L
worst single sample: 1500 µg/L
2/2 SYR4 2014–2017
Toluene
15.395 µg/L 1.5%
of the EPA limit 1000 µg/L
worst single sample: 16 µg/L
2/11 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
1.528 µg/L 2.5%
of the EPA limit 60 µg/L
worst single sample: 1.6 µg/L
2/3 SYR4 2013–2019
Combined Radium (-226 And -228)
1.5 pCi/L 30%
of the EPA limit 5 pCi/L
 1/1 SYR4 2014
Dichloroacetic Acid
1.4 µg/L
No EPA limit set
 1/3 SYR4 2013–2019
61 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-GammaBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDibromoacetic AcidDibromochloromethaneDinosebDiquatEndothallEndrinFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Frequently asked questions about Mount Hope Waterworks

Is Mount Hope Waterworks tap water safe to drink?

EPA monitoring detected 14 contaminants in Mount Hope 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 Mount Hope Waterworks's water?

EPA monitoring detected Lead, Nitrate, Copper, Di(2-ethylhexyl) Phthalate, Lead, and others. The full list with the level and data source for each is above.

How many people does Mount Hope Waterworks serve?

Mount Hope Waterworks reports serving 181 people in Wisconsin, per its EPA record.

Has Mount Hope Waterworks had any water quality violations?

The EPA has 36 violations on file for Mount Hope Waterworks, of which 22 are health-based (a contaminant limit or required treatment was breached) and 0 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.