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 | 1995-05-01 → 1995-05-31 |
| MCL | Health-based | Archived | 1993-07-01 → 1993-07-31 |
| MCL | Health-based | Archived | 1993-07-01 → 1993-07-31 |
| MR | Monitoring | Resolved | 2025-01-01 → 2025-03-31 |
| MR | Monitoring | Resolved | 2016-01-01 → 2016-12-31 |
| MR | Monitoring | Resolved | 2014-07-01 → 2014-09-30 |
| MR | Monitoring | Resolved | 2014-07-01 → 2014-09-30 |
| MR | Monitoring | Resolved | 2014-04-01 → 2014-06-30 |
| MR | Monitoring | Resolved | 2014-04-01 → 2014-06-30 |
| MR | Monitoring | Resolved | 2011-10-01 → 2011-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Lead | 0.0013 mg/L 8.7% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2023 |
| Nitrate | 1150 µg/L 12% of the EPA limit 10000 µg/L | 10/10 | SYR4 | 2012–2019 |
| Arsenic | 7 µg/L 70% of the EPA limit 10 µg/L | 3/3 | SYR4 | 2012–2019 |
| Barium | 17.9 µg/L 0.9% of the EPA limit 2000 µg/L
worst single sample: 18 µg/L | 3/3 | SYR4 | 2012–2019 |
| Fluoride | 170 µg/L 4.3% of the EPA limit 4000 µg/L | 3/3 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 1129 µg/L 11% of the EPA limit 10000 µg/L
worst single sample: 1150 µg/L | 3/3 | SYR4 | 2012–2019 |
| Chromium | 2 µg/L 2% of the EPA limit 100 µg/L | 2/3 | SYR4 | 2012–2019 |
43 contaminants tested, none detected
Utility contact
Frequently asked questions about W&B Waterworks 1
Is W&B Waterworks 1 tap water safe to drink?
EPA monitoring detected 7 contaminants in W&B Waterworks 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 W&B Waterworks 1's water?
EPA monitoring detected Lead, Nitrate, Arsenic, Barium, Fluoride, and others. The full list with the level and data source for each is above.
How many people does W&B Waterworks 1 serve?
W&B Waterworks 1 reports serving 1,112 people in Washington, per its EPA record.
Has W&B Waterworks 1 had any water quality violations?
The EPA has 1655 violations on file for W&B Waterworks 1, of which 3 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.