What was found in Mount Vernon'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 | 1320 µg/L 13% of the EPA limit 10000 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| Fluoride | 698.9 µg/L 17% of the EPA limit 4000 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| Copper | 389.15 µg/L 30% of the EPA limit 1300 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2017 | 1/1 | SYR4 |
| Barium | 195.4 µg/L 9.8% of the EPA limit 2000 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| TTHM | 110.39 µg/L 138% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 66.6 µg/L 111% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| Chloroform | 37.19 µg/L No EPA limit set Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2014 | 1/1 | SYR4 |
| Lead | 20.05 µg/L 134% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2017 | 1/1 | SYR4 |
| Bromodichloromethane | 15.93 µg/L No EPA limit set Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2014 | 1/1 | SYR4 |
| Selenium | 6.36 µg/L 13% of the EPA limit 50 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 2.415 µg/L No EPA limit set Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2014 | 1/1 | SYR4 |
| Arsenic | 2.125 µg/L 21% of the EPA limit 10 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.7 pCi/L 11% of the EPA limit 15 pCi/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| Atrazine | 0.8860 µg/L 30% of the EPA limit 3 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 0.7000 µg/L 12% of the EPA limit 6 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.6500 µg/L 11% of the EPA limit 6 µg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2019 | 1/1 | SYR4 |
| Pfpea | 0.0174 µg/L No EPA limit set Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2024 | 1/1 | UCMR-5 |
| Hfpo-Da | 0.0053 µg/L No EPA limit set Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2024 | 1/1 | UCMR-5 |
| PFOA | 0.0040 µg/L No EPA limit set Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2024 | 1/1 | UCMR-5 |
| Pfhxa | 0.0032 µg/L No EPA limit set Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: MOUNT VERNON WATER WORKS · 6,426 people · 2023 | 1/1 | LCR |
Water suppliers serving Mount Vernon
| Supplier | Population served |
|---|---|
| MOUNT VERNON WATER WORKS | 6,426 |
Frequently asked questions about Mount Vernon tap water
Is Mount Vernon tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Mount Vernon. 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 Mount Vernon?
1 public water supplier report drinking-water monitoring for Mount Vernon, Indiana to the EPA. Each is listed above with its population served.
What contaminants are in Mount Vernon's water?
The contaminants EPA monitoring detected in Mount Vernon 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.