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Tap water quality report

Lake Hallie Waterworks Village of

EPA monitoring tested this supplier for 74 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

74
contaminants tested
19
detected
6,701
people served
24
health-based violations
Wisconsin rankingsLead in WisconsinPFAS in Wisconsin
Water source
Ground water
Ownership
Local government
Counties served
Chippewa

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.

24
health-based violations
62
violations on file
3
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2024-10-17
MCL Health-based Resolved 2009-10-01 → 2009-10-31
MCL Health-based Resolved 2009-10-01 → 2009-10-31
MCL Health-based Resolved 2009-10-01 → 2009-10-31
MCL Health-based Resolved 2009-10-01 → 2009-10-31
MCL Health-based Archived 2008-07-01 → 2008-07-31
MCL Health-based Archived 2008-07-01 → 2008-07-31
MCL Health-based Archived 2008-07-01 → 2008-07-31
MCL Health-based Archived 2008-07-01 → 2008-07-31
MCL Health-based Archived 2008-07-01 → 2008-07-31

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
Nitrate
7800 µg/L 78%
of the EPA limit 10000 µg/L
worst single sample: 9100 µg/L
130/130 SYR4 2012–2019
Copper
587 µg/L 45%
of the EPA limit 1300 µg/L
worst single sample: 1300 µg/L
58/60 SYR4 2012–2017
Lead
19.625 µg/L 131%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 59 µg/L
26/60 SYR4 2012–2017
Combined Radium (-226 And -228)
4.3056 pCi/L 86%
of the EPA limit 5 pCi/L
worst single sample: 4.41 pCi/L
19/19 SYR4 2014–2019
Lead
0.0012 mg/L 8%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2024
Bromodichloromethane
5.54 µg/L
No EPA limit set
worst single sample: 5.7 µg/L
17/18 SYR4 2012–2019
Dibromochloromethane
4.76 µg/L
No EPA limit set
worst single sample: 5.8 µg/L
17/18 SYR4 2012–2019
TTHM
18.2 µg/L 23%
of the EPA limit 80 µg/L
worst single sample: 19.7 µg/L
16/16 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
5.865 µg/L 9.8%
of the EPA limit 60 µg/L
worst single sample: 6.78 µg/L
16/16 SYR4 2012–2019
Chloroform
9.51 µg/L
No EPA limit set
worst single sample: 10 µg/L
15/18 SYR4 2012–2019
Dibromoacetic Acid
1.93 µg/L
No EPA limit set
worst single sample: 2 µg/L
15/16 SYR4 2012–2019
Dichloroacetic Acid
3.925 µg/L
No EPA limit set
worst single sample: 4.9 µg/L
14/16 SYR4 2012–2019
Nitrate-Nitrite
8680 µg/L 87%
of the EPA limit 10000 µg/L
worst single sample: 9100 µg/L
13/13 SYR4 2014–2019
Barium
124.5 µg/L 6.2%
of the EPA limit 2000 µg/L
worst single sample: 130 µg/L
12/12 SYR4 2014–2019
Bromoform
2.855 µg/L
No EPA limit set
worst single sample: 2.9 µg/L
10/17 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
5.148 pCi/L 34%
of the EPA limit 15 pCi/L
worst single sample: 6.21 pCi/L
10/10 SYR4 2014–2019
Trichloroacetic Acid
1.238 µg/L
No EPA limit set
worst single sample: 1.4 µg/L
10/16 SYR4 2012–2019
Monobromoacetic Acid
1.04 µg/L
No EPA limit set
 4/16 SYR4 2012–2019
Monochloroacetic Acid
1.04 µg/L
No EPA limit set
 2/16 SYR4 2012–2019
55 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 TetrachlorideChlordaneChromiumDichloromethaneDalaponDinosebDiquatEndothallEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Frequently asked questions about Lake Hallie Waterworks Village of

Is Lake Hallie Waterworks Village of tap water safe to drink?

EPA monitoring detected 19 contaminants in Lake Hallie Waterworks Village of'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 Lake Hallie Waterworks Village of's water?

EPA monitoring detected Nitrate, Copper, Lead, Combined Radium (-226 And -228), Lead, and others. The full list with the level and data source for each is above.

How many people does Lake Hallie Waterworks Village of serve?

Lake Hallie Waterworks Village of reports serving 6,701 people in Wisconsin, per its EPA record.

Has Lake Hallie Waterworks Village of had any water quality violations?

The EPA has 62 violations on file for Lake Hallie Waterworks Village of, of which 24 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.