What was found in Jerseyville'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 |
|---|---|---|---|
| Fluoride | 1089 µg/L 27% of the EPA limit 4000 µg/L Highest in the city: IL AMERICAN-JERSEYVILLE · 8,412 people · 2018 | 1/2 | SYR4 |
| Copper | 350.5 µg/L 27% of the EPA limit 1300 µg/L Main supplier: JERSEY RWC · 12,750 people · 2017 | 2/2 | SYR4 |
| Nitrate | 150 µg/L 1.5% of the EPA limit 10000 µg/L Highest in the city: IL AMERICAN-JERSEYVILLE · 8,412 people · 2019 | 1/2 | SYR4 |
| TTHM | 100.19849999999998 µg/L 125% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: JERSEY RWC · 12,750 people · 2019 | 2/2 | SYR4 |
| Chloroform | 76.94749999999998 µg/L No EPA limit set Main supplier: JERSEY RWC · 12,750 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 59.64999999999999 µg/L 99% of the EPA limit 60 µg/L Main supplier: JERSEY RWC · 12,750 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 29.479999999999983 µg/L No EPA limit set Main supplier: JERSEY RWC · 12,750 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 27.894999999999996 µg/L No EPA limit set Main supplier: JERSEY RWC · 12,750 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 5.023699999999999 µg/L No EPA limit set Main supplier: JERSEY RWC · 12,750 people · 2019
Highest in the city: 23.5 µg/L — IL AMERICAN-JERSEYVILLE · 8,412 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 18.880999999999997 µg/L No EPA limit set Main supplier: JERSEY RWC · 12,750 people · 2019 | 2/2 | SYR4 |
| Bromoform | 17.127 µg/L No EPA limit set Highest in the city: IL AMERICAN-JERSEYVILLE · 8,412 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 15.059999999999997 µg/L No EPA limit set Main supplier: JERSEY RWC · 12,750 people · 2019 | 2/2 | SYR4 |
| Lithium | 13.9 µg/L No EPA limit set Highest in the city: IL AMERICAN-JERSEYVILLE · 8,412 people · 2024 | 1/2 | UCMR-5 |
| Barium | 9.379999999999999 µg/L 0.5% of the EPA limit 2000 µg/L Highest in the city: IL AMERICAN-JERSEYVILLE · 8,412 people · 2018 | 1/2 | SYR4 |
| Lead | 5.079999999999996 µg/L 34% of the EPA limit 15 µg/L Main supplier: JERSEY RWC · 12,750 people · 2017
Highest in the city: 6.369999999999989 µg/L — IL AMERICAN-JERSEYVILLE · 8,412 people · 2017 | 2/2 | SYR4 |
| Monochloroacetic Acid | 4.595 µg/L No EPA limit set Main supplier: JERSEY RWC · 12,750 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 2.4149999999999996 µg/L No EPA limit set Main supplier: JERSEY RWC · 12,750 people · 2019
Highest in the city: 4.515000000000001 µg/L — IL AMERICAN-JERSEYVILLE · 8,412 people · 2019 | 2/2 | SYR4 |
| Selenium | 2.6 µg/L 5.2% of the EPA limit 50 µg/L Highest in the city: IL AMERICAN-JERSEYVILLE · 8,412 people · 2018 | 1/2 | SYR4 |
| Arsenic | 1.4 µg/L 14% of the EPA limit 10 µg/L Highest in the city: IL AMERICAN-JERSEYVILLE · 8,412 people · 2018 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.4700 pCi/L 9.4% of the EPA limit 5 pCi/L Highest in the city: IL AMERICAN-JERSEYVILLE · 8,412 people · 2015 | 1/2 | SYR4 |
| Pfba | 0.0190 µg/L No EPA limit set Main supplier: JERSEY RWC · 12,750 people · 2024 | 1/2 | UCMR-5 |
| Pfpea | 0.0032 µg/L No EPA limit set Main supplier: JERSEY RWC · 12,750 people · 2024 | 1/2 | UCMR-5 |
| Pfhxa | 0.0030 µg/L No EPA limit set Main supplier: JERSEY RWC · 12,750 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0018 mg/L 12% of the EPA limit 0.0150 mg/L Main supplier: JERSEY RWC · 12,750 people · 2025 | 2/2 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Jerseyville
| Supplier | Population served |
|---|---|
| JERSEY RWC | 12,750 |
| IL AMERICAN-JERSEYVILLE | 8,412 |
Frequently asked questions about Jerseyville tap water
Is Jerseyville tap water safe to drink?
EPA testing detected 24 contaminants in the water serving Jerseyville. 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 Jerseyville?
2 public water suppliers report drinking-water monitoring for Jerseyville, Illinois to the EPA. Each is listed above with its population served.
What contaminants are in Jerseyville's water?
The contaminants EPA monitoring detected in Jerseyville include Fluoride, Copper, Nitrate, TTHM, Chloroform. 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.