What was found in Carlisle's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 1500 µg/L 15% of the EPA limit 10000 µg/L Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| Fluoride | 900 µg/L 23% of the EPA limit 4000 µg/L Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| Copper | 405.2 µg/L 31% of the EPA limit 1300 µg/L Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2017 | 1/1 | SYR4 |
| Barium | 65.2 µg/L 3.3% of the EPA limit 2000 µg/L Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2013 | 1/1 | SYR4 |
| TTHM | 30.35 µg/L 38% of the EPA limit 80 µg/L Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 16.8 µg/L 28% of the EPA limit 60 µg/L Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 11.765 µg/L No EPA limit set Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 9.9175 µg/L No EPA limit set Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 9.4795 µg/L No EPA limit set Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| Lead | 5.655 µg/L 38% of the EPA limit 15 µg/L Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2017 | 1/1 | SYR4 |
| Chloroform | 5.293 µg/L No EPA limit set Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| Bromoform | 3.86 µg/L No EPA limit set Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 3.732 µg/L No EPA limit set Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 3.019 µg/L No EPA limit set Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| Selenium | 1.9 µg/L 3.8% of the EPA limit 50 µg/L Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2013 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.324 µg/L No EPA limit set Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2019 | 1/1 | SYR4 |
| PFHXS | 0.0031 µg/L No EPA limit set Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0015 mg/L 10% of the EPA limit 0.0150 mg/L Main supplier: CARLISLE WATER SUPPLY · 4,170 people · 2023 | 1/1 | LCR |
Water suppliers serving Carlisle
| Supplier | Population served |
|---|---|
| CARLISLE WATER SUPPLY | 4,170 |
Frequently asked questions about Carlisle tap water
Is Carlisle tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Carlisle. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Carlisle?
1 public water supplier report drinking-water monitoring for Carlisle, Iowa to the EPA. Each is listed above with its population served.
What contaminants are in Carlisle's water?
The contaminants EPA monitoring detected in Carlisle include Nitrate, Fluoride, Copper, Barium, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.
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.