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 | 1995-06-01 → 1995-06-30 |
| MCL | Health-based | Resolved | 1995-06-01 → 1995-06-30 |
| MCL | Health-based | Resolved | 1995-05-01 → 1995-05-31 |
| MCL | Health-based | Resolved | 1995-05-01 → 1995-05-31 |
| RPT | Monitoring | Resolved | 2021-11-11 |
| RPT | Monitoring | Resolved | 2021-11-11 |
| RPT | Monitoring | Resolved | 2021-11-11 |
| MR | Monitoring | Resolved | 2009-05-01 → 2009-05-31 |
| MR | Monitoring | Resolved | 2009-05-01 → 2009-05-31 |
| MR | Monitoring | Resolved | 2009-05-01 → 2009-05-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 430 µg/L 4.3% of the EPA limit 10000 µg/L | 12/18 | SYR4 | 2012–2019 |
| Copper | 126.5 µg/L 9.7% of the EPA limit 1300 µg/L
worst single sample: 140 µg/L | 10/10 | SYR4 | 2018 |
| TTHM | 17.65 µg/L 22% of the EPA limit 80 µg/L
worst single sample: 18 µg/L | 8/8 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 10.4 µg/L 17% of the EPA limit 60 µg/L
worst single sample: 13.2 µg/L | 8/8 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 7/7 | LCR | 2024 |
| Lead | 3.23 µg/L 22% of the EPA limit 15 µg/L
worst single sample: 3.5 µg/L | 4/10 | SYR4 | 2018 |
| Barium | 654.2 µg/L 33% of the EPA limit 2000 µg/L
worst single sample: 688 µg/L | 3/3 | SYR4 | 2012–2018 |
| Arsenic | 0.6000 µg/L 6% of the EPA limit 10 µg/L | 2/3 | SYR4 | 2012–2018 |
| Fluoride | 885.5 µg/L 22% of the EPA limit 4000 µg/L
worst single sample: 890 µg/L | 2/3 | SYR4 | 2012–2018 |
| Cyanide | 800 µg/L 400% of the EPA limit, at the 95th percentile of samples — 200 µg/L | 1/4 | SYR4 | 2012–2018 |
| Chromium | 6 µg/L 6% of the EPA limit 100 µg/L | 1/3 | SYR4 | 2012–2018 |
| Combined Radium (-226 And -228) | 0.5900 pCi/L 12% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2018 |
| Gross Alpha, Excl. Radon And U | 6.5 pCi/L 43% of the EPA limit 15 pCi/L | 1/1 | SYR4 | 2018 |
59 contaminants tested, none detected
Utility contact
Frequently asked questions about Chesterfield Water Department
Is Chesterfield Water Department tap water safe to drink?
EPA monitoring detected 13 contaminants in Chesterfield Water Department'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 Chesterfield Water Department's water?
EPA monitoring detected Nitrate, Copper, TTHM, Total Haloacetic Acids (HAA5), Lead, and others. The full list with the level and data source for each is above.
How many people does Chesterfield Water Department serve?
Chesterfield Water Department reports serving 2,800 people in Indiana, per its EPA record.
Has Chesterfield Water Department had any water quality violations?
The EPA has 19 violations on file for Chesterfield Water Department, 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.