Is Mary Hill Park Sanitary Dist Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Fond du Lac

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.

health-based violations

388

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2002-06-01 → 2002-06-30
MCL	Health-based	Resolved	2002-06-01 → 2002-06-30
MCL	Health-based	Resolved	2002-06-01 → 2002-06-30
MCL	Health-based	Resolved	2002-06-01 → 2002-06-30
MCL	Health-based	Resolved	2001-09-01 → 2001-09-30
MCL	Health-based	Resolved	2001-09-01 → 2001-09-30
MCL	Health-based	Resolved	2001-09-01 → 2001-09-30
MCL	Health-based	Resolved	2001-09-01 → 2001-09-30
MCL	Health-based	Resolved	2001-01-01 → 2007-05-09
MCL	Health-based	Resolved	2001-01-01 → 2007-05-09

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Gross Alpha, Excl. Radon And U	16.0453 pCi/L 107% of the EPA limit, at the 95th percentile of samples — 15 pCi/L worst single sample: 20.7 pCi/L	27/27	SYR4	2012–2019
Combined Radium (-226 And -228)	9.353 pCi/L 187% of the EPA limit, at the 95th percentile of samples — 5 pCi/L worst single sample: 11 pCi/L	24/24	SYR4	2012–2019
Combined Uranium	0.3665 µg/L 1.2% of the EPA limit 30 µg/L worst single sample: 0.7000 µg/L	24/24	SYR4	2012–2019
Lead	0.0078 mg/L 52% of the EPA limit 0.0150 mg/L	14/14	LCR	2023
Copper	157.95 µg/L 12% of the EPA limit 1300 µg/L worst single sample: 173 µg/L	8/10	SYR4	2014–2017
Bromoform	9.96 µg/L No EPA limit set worst single sample: 10.1 µg/L	5/5	SYR4	2013–2019
Dibromochloromethane	3.54 µg/L No EPA limit set worst single sample: 3.7 µg/L	5/5	SYR4	2013–2019
Gross Beta Particle Activity	14.78 pCi/L No EPA limit set worst single sample: 15 pCi/L	3/3	SYR4	2012–2019
TTHM	13.71 µg/L 17% of the EPA limit 80 µg/L worst single sample: 13.94 µg/L	3/3	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	7.9499 µg/L 13% of the EPA limit 60 µg/L worst single sample: 8.101 µg/L	3/3	SYR4	2013–2019
Dibromoacetic Acid	1.2844 µg/L No EPA limit set worst single sample: 1.3 µg/L	2/3	SYR4	2013–2019
Lead	16.69 µg/L 111% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 17.4 µg/L	2/10	SYR4	2014–2017
Monochloroacetic Acid	5.1245 µg/L No EPA limit set worst single sample: 5.18 µg/L	2/3	SYR4	2013–2019
Nitrate	120 µg/L 1.2% of the EPA limit 10000 µg/L	2/10	SYR4	2013–2019
Barium	12.3 µg/L 0.6% of the EPA limit 2000 µg/L	1/2	SYR4	2014–2017
Beryllium, Total	0.9000 µg/L 23% of the EPA limit 4 µg/L	1/2	SYR4	2014–2017
Bromodichloromethane	1 µg/L No EPA limit set	1/5	SYR4	2013–2019
Cadmium	2 µg/L 40% of the EPA limit 5 µg/L	1/2	SYR4	2014–2017
Dichloroacetic Acid	2.52 µg/L No EPA limit set	1/3	SYR4	2013–2019
Fluoride	470 µg/L 12% of the EPA limit 4000 µg/L	1/2	SYR4	2014–2017
Monobromoacetic Acid	1.23 µg/L No EPA limit set	1/3	SYR4	2013–2019
Trichloroacetic Acid	0.7030 µg/L No EPA limit set	1/3	SYR4	2013–2019

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-GammaBenzeneChlorobenzeneCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Frequently asked questions about Mary Hill Park Sanitary Dist

Is Mary Hill Park Sanitary Dist tap water safe to drink?

EPA monitoring detected 22 contaminants in Mary Hill Park Sanitary Dist'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 Mary Hill Park Sanitary Dist's water?

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

How many people does Mary Hill Park Sanitary Dist serve?

Mary Hill Park Sanitary Dist reports serving 65 people in Wisconsin, per its EPA record.

Has Mary Hill Park Sanitary Dist had any water quality violations?

The EPA has 388 violations on file for Mary Hill Park Sanitary Dist, of which 56 are health-based (a contaminant limit or required treatment was breached) and 1 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.