What was found in ZIP 46131
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 856 µg/L 8.6% of the EPA limit 10000 µg/L Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2019
Highest in the ZIP: 2900 µg/L — EASTERN BARTHOLOMEW WATER · 13,547 people · 2019 | 4/4 | SYR4 |
| Nitrate | 788 µg/L 7.9% of the EPA limit 10000 µg/L Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2019
Highest in the ZIP: 2380 µg/L — EASTERN BARTHOLOMEW WATER · 13,547 people · 2017 | 4/4 | SYR4 |
| Fluoride | 772 µg/L 19% of the EPA limit 4000 µg/L Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2018
Highest in the ZIP: 900 µg/L — EASTERN BARTHOLOMEW WATER · 13,547 people · 2019 | 4/4 | SYR4 |
| Copper | 614.3 µg/L 47% of the EPA limit 1300 µg/L Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2018 | 4/4 | SYR4 |
| Barium | 355 µg/L 18% of the EPA limit 2000 µg/L Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2018 | 4/4 | SYR4 |
| TTHM | 21.83 µg/L 27% of the EPA limit 80 µg/L Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2019
Highest in the ZIP: 29.65 µg/L — BARGERSVILLE WATER DEPARTMENT · 34,418 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 9.32 µg/L 16% of the EPA limit 60 µg/L Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2019
Highest in the ZIP: 19.14 µg/L — EASTERN BARTHOLOMEW WATER · 13,547 people · 2019 | 4/4 | SYR4 |
| Lead | 5.3 µg/L 35% of the EPA limit 15 µg/L Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2018
Highest in the ZIP: 19.07 µg/L — PRINCES LAKE WATER DEPARTMENT · 4,095 people · 2017 | 4/4 | SYR4 |
| Lithium | 10 µg/L No EPA limit set Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2024 | 1/4 | UCMR-5 |
| Arsenic | 4.32 µg/L 43% of the EPA limit 10 µg/L Highest in the ZIP: BARGERSVILLE WATER DEPARTMENT · 34,418 people · 2019 | 3/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.289 pCi/L 22% of the EPA limit 15 pCi/L Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2017
Highest in the ZIP: 4.24 pCi/L — BARGERSVILLE WATER DEPARTMENT · 34,418 people · 2018 | 3/4 | SYR4 |
| Combined Uranium | 1.9 µg/L 6.3% of the EPA limit 30 µg/L Highest in the ZIP: BARGERSVILLE WATER DEPARTMENT · 34,418 people · 2013 | 2/4 | SYR4 |
| Combined Radium (-226 And -228) | 0.4400 pCi/L 8.8% of the EPA limit 5 pCi/L Highest in the ZIP: EASTERN BARTHOLOMEW WATER · 13,547 people · 2017 | 1/4 | SYR4 |
| Pfpea | 0.0049 µg/L No EPA limit set Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2024
Highest in the ZIP: 0.0082 µg/L — BARGERSVILLE WATER DEPARTMENT · 34,418 people · 2025 | 2/4 | UCMR-5 |
| Pfba | 0.0060 µg/L No EPA limit set Highest in the ZIP: BARGERSVILLE WATER DEPARTMENT · 34,418 people · 2025 | 1/4 | UCMR-5 |
| Pfhxa | 0.0045 µg/L No EPA limit set Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2024
Highest in the ZIP: 0.0051 µg/L — BARGERSVILLE WATER DEPARTMENT · 34,418 people · 2025 | 2/4 | UCMR-5 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: INDIANA AMERICAN WATER - JOHNSON COUNTY · 86,813 people · 2024
Highest in the ZIP: 0.0028 mg/L — BARGERSVILLE WATER DEPARTMENT · 34,418 people · 2025 | 4/4 | 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.
Water suppliers serving ZIP 46131
| Supplier | State | Population served |
|---|---|---|
| INDIANA AMERICAN WATER - JOHNSON COUNTY | IN | 86,813 |
| BARGERSVILLE WATER DEPARTMENT | IN | 34,418 |
| EASTERN BARTHOLOMEW WATER | IN | 13,547 |
| PRINCES LAKE WATER DEPARTMENT | IN | 4,095 |
Frequently asked questions about ZIP 46131 tap water
Is the tap water in ZIP 46131 safe to drink?
EPA testing detected 17 contaminants across the water suppliers serving ZIP 46131. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 46131?
4 public water suppliers report EPA drinking-water monitoring for ZIP 46131. Each is listed above with its population served.
What contaminants are in ZIP 46131's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.