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.
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Archived | 1988-07-07 → 1992-07-06 |
| MCL | Health-based | Archived | 1988-07-07 → 1992-07-06 |
| MCL | Health-based | Resolved | 1986-06-06 → 1990-06-05 |
| MCL | Health-based | Resolved | 1986-06-06 → 1990-06-05 |
| MCL | Health-based | Resolved | 1986-06-06 → 1990-06-05 |
| Other | Monitoring | Resolved | 2024-10-17 |
| Other | Monitoring | Resolved | 2024-10-17 |
| MR | Monitoring | Resolved | 1995-07-01 → 1995-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 1200 µg/L 92% of the EPA limit 1300 µg/L
worst single sample: 1300 µg/L | 60/60 | SYR4 | 2014–2017 |
| Lead | 0.5300 µg/L 3.5% of the EPA limit 15 µg/L
worst single sample: 0.8500 µg/L | 26/60 | SYR4 | 2014–2017 |
| Bromodichloromethane | 3.49 µg/L No EPA limit set
worst single sample: 3.7 µg/L | 22/30 | SYR4 | 2012–2019 |
| Dibromochloromethane | 2.785 µg/L No EPA limit set
worst single sample: 2.9 µg/L | 22/30 | SYR4 | 2012–2019 |
| Chloroform | 3.1 µg/L No EPA limit set
worst single sample: 3.3 µg/L | 21/30 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 7.7755 pCi/L 156% of the EPA limit, at the 95th percentile of samples — 5 pCi/L
worst single sample: 8.26 pCi/L | 18/18 | SYR4 | 2016–2019 |
| Gross Alpha, Excl. Radon And U | 15.2 pCi/L 101% of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 19.2 pCi/L | 17/17 | SYR4 | 2016–2019 |
| Lead | 0.00047 mg/L 3.1% of the EPA limit 0.0150 mg/L | 16/16 | LCR | 2023 |
| TTHM | 9.665 µg/L 12% of the EPA limit 80 µg/L
worst single sample: 10.16 µg/L | 16/16 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 2.8625 µg/L 4.8% of the EPA limit 60 µg/L
worst single sample: 3.11 µg/L | 16/16 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 0.8470 µg/L No EPA limit set
worst single sample: 0.8600 µg/L | 14/16 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 0.6545 µg/L No EPA limit set
worst single sample: 0.6600 µg/L | 12/16 | SYR4 | 2012–2019 |
| Combined Uranium | 0.5166 µg/L 1.7% of the EPA limit 30 µg/L
worst single sample: 0.5940 µg/L | 10/10 | SYR4 | 2018–2019 |
| Dichloroacetic Acid | 1.74 µg/L No EPA limit set
worst single sample: 1.9 µg/L | 9/16 | SYR4 | 2012–2019 |
| Barium | 4.575 µg/L 0.2% of the EPA limit 2000 µg/L
worst single sample: 4.8 µg/L | 4/4 | SYR4 | 2014–2017 |
| Fluoride | 1600 µg/L 40% of the EPA limit 4000 µg/L | 4/4 | SYR4 | 2014–2017 |
| Nitrate | 280 µg/L 2.8% of the EPA limit 10000 µg/L | 4/24 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 0.6420 µg/L No EPA limit set
worst single sample: 0.6700 µg/L | 3/16 | SYR4 | 2012–2019 |
| Arsenic | 1 µg/L 10% of the EPA limit 10 µg/L | 1/4 | SYR4 | 2014–2017 |
| Bromoform | 0.5900 µg/L No EPA limit set | 1/30 | SYR4 | 2012–2019 |
| Xylenes, Total | 3.7 µg/L 0% of the EPA limit 10000 µg/L | 1/19 | SYR4 | 2012–2019 |
54 contaminants tested, none detected
Utility contact
Frequently asked questions about Darboy Sanitary Dist 1
Is Darboy Sanitary Dist 1 tap water safe to drink?
EPA monitoring detected 21 contaminants in Darboy Sanitary Dist 1'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 Darboy Sanitary Dist 1's water?
EPA monitoring detected Copper, Lead, Bromodichloromethane, Dibromochloromethane, Chloroform, and others. The full list with the level and data source for each is above.
How many people does Darboy Sanitary Dist 1 serve?
Darboy Sanitary Dist 1 reports serving 13,024 people in Wisconsin, per its EPA record.
Has Darboy Sanitary Dist 1 had any water quality violations?
The EPA has 8 violations on file for Darboy Sanitary Dist 1, of which 5 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.