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 | Resolved | 1998-04-01 → 1998-06-30 |
| MCL | Health-based | Resolved | 1998-04-01 → 1998-06-30 |
| MCL | Health-based | Resolved | 1995-03-01 → 1995-03-31 |
| MCL | Health-based | Resolved | 1995-03-01 → 1995-03-31 |
| MR | Monitoring | Addressed | 2024-10-01 |
| MR | Monitoring | Addressed | 2024-10-01 |
| MR | Monitoring | Addressed | 2024-10-01 |
| MR | Monitoring | Addressed | 2024-10-01 |
| MR | Monitoring | Resolved | 2022-01-01 |
| MR | Monitoring | Resolved | 2022-01-01 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 4348.05 µg/L 43% of the EPA limit 10000 µg/L
worst single sample: 4493.2 µg/L | 34/36 | SYR4 | 2012–2019 |
| Copper | 1248 µg/L 96% of the EPA limit 1300 µg/L
worst single sample: 1370 µg/L | 33/50 | SYR4 | 2012–2018 |
| Lead | 7 µg/L 47% of the EPA limit 15 µg/L
worst single sample: 14 µg/L | 22/50 | SYR4 | 2012–2018 |
| Dichloroacetic Acid | 31.5 µg/L No EPA limit set
worst single sample: 37.6 µg/L | 6/27 | SYR4 | 2014–2019 |
| TTHM | 14.75 µg/L 18% of the EPA limit 80 µg/L
worst single sample: 15 µg/L | 6/29 | SYR4 | 2013–2019 |
| Bromodichloromethane | 3.6234 µg/L No EPA limit set
worst single sample: 3.763 µg/L | 5/27 | SYR4 | 2014–2019 |
| Combined Radium (-226 And -228) | 4.8 pCi/L 96% of the EPA limit 5 pCi/L | 4/4 | SYR4 | 2012–2017 |
| Total Haloacetic Acids (HAA5) | 65.305 µg/L 109% of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 74.5 µg/L | 4/29 | SYR4 | 2013–2019 |
| Chloroform | 11.238 µg/L No EPA limit set
worst single sample: 11.31 µg/L | 3/27 | SYR4 | 2014–2019 |
| Trichloroacetic Acid | 31.54 µg/L No EPA limit set
worst single sample: 34.6 µg/L | 3/27 | SYR4 | 2014–2019 |
| Bromoform | 1.38 µg/L No EPA limit set
worst single sample: 1.4 µg/L | 2/27 | SYR4 | 2014–2019 |
| Dibromochloromethane | 2 µg/L No EPA limit set | 2/27 | SYR4 | 2014–2019 |
| Dibromoacetic Acid | 2.3 µg/L No EPA limit set | 1/27 | SYR4 | 2014–2019 |
| Gross Alpha, Excl. Radon And U | 3.6 pCi/L 24% of the EPA limit 15 pCi/L | 1/1 | SYR4 | 2017 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 1/1 | LCR | 2022 |
| Nitrate-Nitrite | 3440 µg/L 34% of the EPA limit 10000 µg/L | 1/2 | SYR4 | 2019 |
62 contaminants tested, none detected
Utility contact
Frequently asked questions about Northwest Water Supply Inc
Is Northwest Water Supply Inc tap water safe to drink?
EPA monitoring detected 16 contaminants in Northwest Water Supply Inc'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 Northwest Water Supply Inc's water?
EPA monitoring detected Nitrate, Copper, Lead, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.
How many people does Northwest Water Supply Inc serve?
Northwest Water Supply Inc reports serving 1,105 people in North Carolina, per its EPA record.
Has Northwest Water Supply Inc had any water quality violations?
The EPA has 496 violations on file for Northwest Water Supply Inc, of which 4 are health-based (a contaminant limit or required treatment was breached) and 14 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.