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Tap water quality report

Williamsburg 206

EPA monitoring tested this supplier for 67 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

67
contaminants tested
9
detected
48
people served
23
health-based violations
Wisconsin rankingsLead in WisconsinPFAS in Wisconsin
Water source
Ground water
Ownership
Private
Counties served
Ozaukee

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.

23
health-based violations
450
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2005-09-01 → 2005-09-30
MCL Health-based Resolved 2005-09-01 → 2005-09-30

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
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2024
Copper
14.55 µg/L 1.1%
of the EPA limit 1300 µg/L
worst single sample: 15 µg/L
6/15 SYR4 2012–2018
Barium
46.86 µg/L 2.3%
of the EPA limit 2000 µg/L
worst single sample: 47.4 µg/L
3/3 SYR4 2012–2018
Arsenic
2.65 µg/L 27%
of the EPA limit 10 µg/L
worst single sample: 2.7 µg/L
2/3 SYR4 2012–2018
Fluoride
469.5 µg/L 12%
of the EPA limit 4000 µg/L
worst single sample: 470 µg/L
2/3 SYR4 2012–2018
Nitrate
210 µg/L 2.1%
of the EPA limit 10000 µg/L
 2/10 SYR4 2013–2019
Combined Radium (-226 And -228)
1.85 pCi/L 37%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
Gross Alpha, Excl. Radon And U
6.4 pCi/L 43%
of the EPA limit 15 pCi/L
 1/1 SYR4 2015
Nitrate-Nitrite
85 µg/L 0.9%
of the EPA limit 10000 µg/L
 1/4 SYR4 2012–2018
58 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, TotalAtrazineBhc-GammaBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDibromochloromethaneDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Frequently asked questions about Williamsburg 206

Is Williamsburg 206 tap water safe to drink?

EPA monitoring detected 9 contaminants in Williamsburg 206'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 Williamsburg 206's water?

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

How many people does Williamsburg 206 serve?

Williamsburg 206 reports serving 48 people in Wisconsin, per its EPA record.

Has Williamsburg 206 had any water quality violations?

The EPA has 450 violations on file for Williamsburg 206, of which 23 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.