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 |
|---|---|---|---|
| MR | Monitoring | Resolved | 2023-07-01 → 2024-06-30 |
| MR | Monitoring | Resolved | 2023-07-01 → 2024-06-30 |
| MR | Monitoring | Resolved | 2023-07-01 → 2024-06-30 |
| MR | Monitoring | Resolved | 2023-07-01 → 2024-06-30 |
| Other | Monitoring | Unaddressed | 2022-07-24 |
| Other | Monitoring | Unaddressed | 2022-07-24 |
| Other | Monitoring | Unaddressed | 2022-07-24 |
| MON | Monitoring | Resolved | 2022-03-01 → 2022-03-31 |
| MON | Monitoring | Resolved | 2022-03-01 → 2022-03-31 |
| MON | Monitoring | Resolved | 2022-03-01 → 2022-03-31 |
PFAS detected
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHXS | 0.0031 µg/L | 1/1 | 2025 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Fluoride | 1100 µg/L 28% of the EPA limit 4000 µg/L | 90/90 | SYR4 | 2012–2019 |
| Copper | 977 µg/L 75% of the EPA limit 1300 µg/L | 45/45 | SYR4 | 2014–2017 |
| Lead | 0.0015 mg/L 10% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2023 |
| Nitrate | 1500 µg/L 15% of the EPA limit 10000 µg/L | 14/14 | SYR4 | 2012–2019 |
| Lead | 5.7 µg/L 38% of the EPA limit 15 µg/L | 10/45 | SYR4 | 2014–2017 |
| Bromodichloromethane | 9.56 µg/L No EPA limit set | 8/8 | SYR4 | 2012–2019 |
| Bromoform | 3.86 µg/L No EPA limit set | 8/8 | SYR4 | 2012–2019 |
| Chloroform | 5.65 µg/L No EPA limit set | 8/8 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4.04 µg/L No EPA limit set | 8/8 | SYR4 | 2012–2019 |
| Dibromochloromethane | 11.8 µg/L No EPA limit set | 8/8 | SYR4 | 2012–2019 |
| TTHM | 30.7 µg/L 38% of the EPA limit 80 µg/L | 8/8 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 1.39 µg/L No EPA limit set | 7/8 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 10.3 µg/L No EPA limit set | 4/8 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 17.1 µg/L 29% of the EPA limit 60 µg/L | 4/8 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 3.15 µg/L No EPA limit set | 3/8 | SYR4 | 2012–2019 |
| Barium | 65.2 µg/L 3.3% of the EPA limit 2000 µg/L | 1/1 | SYR4 | 2013 |
| Selenium | 1.9 µg/L 3.8% of the EPA limit 50 µg/L | 1/1 | SYR4 | 2013 |
72 contaminants tested, none detected
Utility contact
Frequently asked questions about Carlisle Water Supply
Is Carlisle Water Supply tap water safe to drink?
EPA monitoring detected 18 contaminants in Carlisle Water Supply'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 Carlisle Water Supply's water?
EPA monitoring detected Fluoride, Copper, Lead, Nitrate, Lead, and others. The full list with the level and data source for each is above.
How many people does Carlisle Water Supply serve?
Carlisle Water Supply reports serving 4,170 people in Iowa, per its EPA record.
Has Carlisle Water Supply had any water quality violations?
The EPA has 49 violations on file for Carlisle Water Supply, of which 0 are health-based (a contaminant limit or required treatment was breached) and 3 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.