What was found in ZIP 46303
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 |
|---|---|---|---|
| Copper | 946 µg/L 73% of the EPA limit 1300 µg/L Main supplier: ST. JOHN MUNICIPAL WATER UTILITY · 25,700 people · 2017 | 2/2 | SYR4 |
| Fluoride | 784 µg/L 20% of the EPA limit 4000 µg/L Main supplier: ST. JOHN MUNICIPAL WATER UTILITY · 25,700 people · 2017 | 2/2 | SYR4 |
| Barium | 23.4 µg/L 1.2% of the EPA limit 2000 µg/L Main supplier: ST. JOHN MUNICIPAL WATER UTILITY · 25,700 people · 2017
Highest in the ZIP: 367.5 µg/L — CEDAR LAKE WATER WORKS · 4,600 people · 2018 | 2/2 | SYR4 |
| Lithium | 83.8 µg/L No EPA limit set Main supplier: ST. JOHN MUNICIPAL WATER UTILITY · 25,700 people · 2025 | 2/2 | UCMR-5 |
| TTHM | 22.225 µg/L 28% of the EPA limit 80 µg/L Main supplier: ST. JOHN MUNICIPAL WATER UTILITY · 25,700 people · 2019 | 2/2 | SYR4 |
| Chromium | 20.275 µg/L 20% of the EPA limit 100 µg/L Highest in the ZIP: CEDAR LAKE WATER WORKS · 4,600 people · 2018 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 14.03 µg/L 23% of the EPA limit 60 µg/L Main supplier: ST. JOHN MUNICIPAL WATER UTILITY · 25,700 people · 2019 | 2/2 | SYR4 |
| Lead | 13.1 µg/L 87% of the EPA limit 15 µg/L Main supplier: ST. JOHN MUNICIPAL WATER UTILITY · 25,700 people · 2017 | 2/2 | SYR4 |
| Chloroform | 8.14 µg/L No EPA limit set Highest in the ZIP: CEDAR LAKE WATER WORKS · 4,600 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 6.94 µg/L No EPA limit set Highest in the ZIP: CEDAR LAKE WATER WORKS · 4,600 people · 2019 | 1/2 | SYR4 |
| Dibromochloromethane | 5.34 µg/L No EPA limit set Highest in the ZIP: CEDAR LAKE WATER WORKS · 4,600 people · 2019 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.892 pCi/L 13% of the EPA limit 15 pCi/L Main supplier: ST. JOHN MUNICIPAL WATER UTILITY · 25,700 people · 2018
Highest in the ZIP: 2.44 pCi/L — CEDAR LAKE WATER WORKS · 4,600 people · 2018 | 2/2 | SYR4 |
| Xylenes, Total | 2.3 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: CEDAR LAKE WATER WORKS · 4,600 people · 2019 | 1/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.5 µg/L 25% of the EPA limit 6 µg/L Main supplier: ST. JOHN MUNICIPAL WATER UTILITY · 25,700 people · 2018
Highest in the ZIP: 2.1 µg/L — CEDAR LAKE WATER WORKS · 4,600 people · 2018 | 2/2 | SYR4 |
| Bromoform | 1.67 µg/L No EPA limit set Highest in the ZIP: CEDAR LAKE WATER WORKS · 4,600 people · 2019 | 1/2 | SYR4 |
| Di(2-ethylhexyl) Adipate | 0.7000 µg/L 0.2% of the EPA limit 400 µg/L Highest in the ZIP: CEDAR LAKE WATER WORKS · 4,600 people · 2018 | 1/2 | SYR4 |
| Pentachlorophenol | 0.1400 µg/L 14% of the EPA limit 1 µg/L Highest in the ZIP: CEDAR LAKE WATER WORKS · 4,600 people · 2018 | 1/2 | SYR4 |
| Lead | 0.0027 mg/L 18% of the EPA limit 0.0150 mg/L Main supplier: ST. JOHN MUNICIPAL WATER UTILITY · 25,700 people · 2023
Highest in the ZIP: 0.0145 mg/L — CEDAR LAKE WATER WORKS · 4,600 people · 2027 | 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.
Water suppliers serving ZIP 46303
| Supplier | State | Population served |
|---|---|---|
| ST. JOHN MUNICIPAL WATER UTILITY | IN | 25,700 |
| CEDAR LAKE WATER WORKS | IN | 4,600 |
Frequently asked questions about ZIP 46303 tap water
Is the tap water in ZIP 46303 safe to drink?
EPA testing detected 18 contaminants across the water suppliers serving ZIP 46303. 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 46303?
2 public water suppliers report EPA drinking-water monitoring for ZIP 46303. Each is listed above with its population served.
What contaminants are in ZIP 46303's water?
EPA monitoring detected Copper, Fluoride, Barium, Lithium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.