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Tap water quality report

Hillside

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
63
people served
0
health-based violations
Wisconsin rankingsLead in WisconsinPFAS in Wisconsin
Water source
Ground water
Ownership
Native American

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.

0
health-based violations
200
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30

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
Copper
143.2 µg/L 11%
of the EPA limit 1300 µg/L
worst single sample: 154 µg/L
13/14 SYR4 2012–2018
Lead
0.0037 mg/L 25%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2025
Fluoride
1683.5 µg/L 42%
of the EPA limit 4000 µg/L
worst single sample: 1700 µg/L
4/4 SYR4 2013–2018
TTHM
15.125 µg/L 19%
of the EPA limit 80 µg/L
worst single sample: 15.2 µg/L
4/4 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
5.56 µg/L 9.3%
of the EPA limit 60 µg/L
worst single sample: 5.8 µg/L
4/4 SYR4 2012–2019
Barium
80.95 µg/L 4%
of the EPA limit 2000 µg/L
worst single sample: 81.7 µg/L
3/3 SYR4 2013–2018
Combined Radium (-226 And -228)
4.262 pCi/L 85%
of the EPA limit 5 pCi/L
worst single sample: 4.32 pCi/L
3/3 SYR4 2013–2019
Lead
2.17 µg/L 14%
of the EPA limit 15 µg/L
worst single sample: 2.3 µg/L
3/14 SYR4 2012–2018
Arsenic
0.2295 µg/L 2.3%
of the EPA limit 10 µg/L
worst single sample: 0.2300 µg/L
2/3 SYR4 2013–2018
Gross Alpha, Excl. Radon And U
12.726 pCi/L 85%
of the EPA limit 15 pCi/L
worst single sample: 13.1 pCi/L
2/2 SYR4 2013–2016
Beryllium, Total
0.0280 µg/L 0.7%
of the EPA limit 4 µg/L
 1/3 SYR4 2013–2018
Chromium
0.1700 µg/L 0.2%
of the EPA limit 100 µg/L
 1/3 SYR4 2013–2018
Dichloromethane
0.1900 µg/L 3.8%
of the EPA limit 5 µg/L
 1/1 SYR4 2017
Gross Beta Particle Activity
7.75 pCi/L
No EPA limit set
 1/1 SYR4 2013
61 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitrateNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DANFORTH, PAUL
Phone
920-497-5806
Email
[email protected]

Frequently asked questions about Hillside

Is Hillside tap water safe to drink?

EPA monitoring detected 14 contaminants in Hillside'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 Hillside's water?

EPA monitoring detected Copper, Lead, Fluoride, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Hillside serve?

Hillside reports serving 63 people in Wisconsin, per its EPA record.

Has Hillside had any water quality violations?

The EPA has 200 violations on file for Hillside, of which 0 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.