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 | 2005-04-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-04-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-04-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-04-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-04-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-04-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-04-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-04-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-04-01 → 2005-06-30 |
| MCL | Health-based | Resolved | 2005-04-01 → 2005-06-30 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 610.4 µg/L 47% of the EPA limit 1300 µg/L
worst single sample: 980 µg/L | 30/31 | SYR4 | 2013–2019 |
| Lead | 0.0077 mg/L 51% of the EPA limit 0.0150 mg/L | 14/14 | LCR | 2025 |
| Gross Alpha, Excl. Radon And U | 15.9 pCi/L 106% of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 16.2 pCi/L | 7/7 | SYR4 | 2015–2019 |
| Combined Radium (-226 And -228) | 3.76 pCi/L 75% of the EPA limit 5 pCi/L
worst single sample: 3.78 pCi/L | 6/6 | SYR4 | 2012–2019 |
| Barium | 9.184 µg/L 0.5% of the EPA limit 2000 µg/L
worst single sample: 9.2 µg/L | 3/3 | SYR4 | 2014–2017 |
| Fluoride | 1217 µg/L 30% of the EPA limit 4000 µg/L
worst single sample: 1220 µg/L | 2/2 | SYR4 | 2014–2017 |
| Lead | 13.115 µg/L 87% of the EPA limit 15 µg/L
worst single sample: 13.7 µg/L | 2/31 | SYR4 | 2013–2019 |
| Cadmium | 5.3 µg/L 106% of the EPA limit, at the 95th percentile of samples — 5 µg/L | 1/3 | SYR4 | 2014–2017 |
| Combined Uranium | 0.1028 µg/L 0.3% of the EPA limit 30 µg/L | 1/7 | SYR4 | 2015–2019 |
| Nitrite | 11 µg/L 1.1% of the EPA limit 1000 µg/L | 1/10 | SYR4 | 2012–2019 |
70 contaminants tested, none detected
Utility contact
Frequently asked questions about Granville
Is Granville tap water safe to drink?
EPA monitoring detected 10 contaminants in Granville'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 Granville's water?
EPA monitoring detected Copper, Lead, Gross Alpha, Excl. Radon And U, Combined Radium (-226 And -228), Barium, and others. The full list with the level and data source for each is above.
How many people does Granville serve?
Granville reports serving 1,359 people in Illinois, per its EPA record.
Has Granville had any water quality violations?
The EPA has 354 violations on file for Granville, of which 208 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.