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 |
|---|---|---|---|
| TT | Health-based | Resolved | 2024-10-17 |
| MCL | Health-based | Resolved | 2009-06-01 → 2009-06-30 |
| MCL | Health-based | Resolved | 2009-06-01 → 2009-06-30 |
| MCL | Health-based | Archived | 2001-09-01 → 2001-09-30 |
| Other | Monitoring | Resolved | 2025-04-03 |
| MR | Monitoring | Resolved | 2024-07-01 → 2024-07-31 |
| MON | Monitoring | Resolved | 2024-07-01 → 2024-07-31 |
| MR | Monitoring | Resolved | 2023-10-31 |
| MR | Monitoring | Resolved | 2023-10-01 |
| MR | Monitoring | Resolved | 2023-01-01 → 2023-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 760 µg/L 58% of the EPA limit 1300 µg/L | 46/56 | SYR4 | 2013–2019 |
| Lead | 5.2 µg/L 35% of the EPA limit 15 µg/L | 21/56 | SYR4 | 2013–2019 |
| Nitrate | 800 µg/L 8% of the EPA limit 10000 µg/L | 20/32 | SYR4 | 2012–2019 |
| Chloroform | 42.1 µg/L No EPA limit set | 15/17 | SYR4 | 2013–2019 |
| Bromodichloromethane | 5.9 µg/L No EPA limit set | 12/16 | SYR4 | 2013–2019 |
| Lead | 0.0027 mg/L 18% of the EPA limit 0.0150 mg/L | 11/11 | LCR | 2023 |
| TTHM | 48.8 µg/L 61% of the EPA limit 80 µg/L | 8/8 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 2.6 pCi/L 52% of the EPA limit 5 pCi/L | 5/5 | SYR4 | 2015–2016 |
| Dibromochloromethane | 1.5 µg/L No EPA limit set | 5/15 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 7.735 µg/L No EPA limit set | 5/9 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 22 µg/L 37% of the EPA limit 60 µg/L | 4/8 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 16.4 µg/L No EPA limit set | 4/9 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 530 µg/L 5.3% of the EPA limit 10000 µg/L | 3/5 | SYR4 | 2013–2019 |
| Xylenes, Total | 0.8300 µg/L 0% of the EPA limit 10000 µg/L | 3/10 | SYR4 | 2013–2019 |
| Fluoride | 300 µg/L 7.5% of the EPA limit 4000 µg/L | 2/5 | SYR4 | 2013–2019 |
| Arsenic | 3 µg/L 30% of the EPA limit 10 µg/L | 1/6 | SYR4 | 2013–2019 |
| Bromoform | 1 µg/L No EPA limit set | 1/15 | SYR4 | 2013–2019 |
64 contaminants tested, none detected
Utility contact
Frequently asked questions about Nisqually-Leschi & West Nisqually
Is Nisqually-Leschi & West Nisqually tap water safe to drink?
EPA monitoring detected 17 contaminants in Nisqually-Leschi & West Nisqually'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 Nisqually-Leschi & West Nisqually's water?
EPA monitoring detected Copper, Lead, Nitrate, Chloroform, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does Nisqually-Leschi & West Nisqually serve?
Nisqually-Leschi & West Nisqually reports serving 3,200 people in Washington, per its EPA record.
Has Nisqually-Leschi & West Nisqually had any water quality violations?
The EPA has 692 violations on file for Nisqually-Leschi & West Nisqually, of which 4 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.