What was found in ZIP 60441
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 | 60 µg/L 0.6% of the EPA limit 10000 µg/L Main supplier: JOLIET · 160,000 people · 2019
Highest in the ZIP: 1740 µg/L — LOCKPORT · 23,100 people · 2019 | 2/6 | SYR4 |
| Fluoride | 1372 µg/L 34% of the EPA limit 4000 µg/L Main supplier: JOLIET · 160,000 people · 2019 | 2/6 | SYR4 |
| Nitrate-Nitrite | 58 µg/L 0.6% of the EPA limit 10000 µg/L Main supplier: JOLIET · 160,000 people · 2019
Highest in the ZIP: 1072.45 µg/L — LOCKPORT · 23,100 people · 2016 | 2/6 | SYR4 |
| Copper | 818.5 µg/L 63% of the EPA limit 1300 µg/L Main supplier: JOLIET · 160,000 people · 2018 | 6/6 | SYR4 |
| Lithium | 54.7 µg/L No EPA limit set Main supplier: JOLIET · 160,000 people · 2025
Highest in the ZIP: 65 µg/L — LOCKPORT · 23,100 people · 2024 | 2/6 | UCMR-5 |
| TTHM | 1 µg/L 1.3% of the EPA limit 80 µg/L Main supplier: JOLIET · 160,000 people · 2019
Highest in the ZIP: 59.12 µg/L — NEW LENOX · 27,690 people · 2019 | 6/6 | SYR4 |
| Barium | 57.91 µg/L 2.9% of the EPA limit 2000 µg/L Main supplier: JOLIET · 160,000 people · 2019 | 2/6 | SYR4 |
| Chloroform | 41.87 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 5/6 | SYR4 |
| Lead | 28.025 µg/L 187% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: JOLIET · 160,000 people · 2018 | 6/6 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.475 µg/L 2.5% of the EPA limit 60 µg/L Main supplier: JOLIET · 160,000 people · 2019
Highest in the ZIP: 24.975 µg/L — CORINTH PWD · 3,927 people · 2019 | 6/6 | SYR4 |
| Chromium | 20.921 µg/L 21% of the EPA limit 100 µg/L Highest in the ZIP: LOCKPORT · 23,100 people · 2019 | 1/6 | SYR4 |
| Dichloroacetic Acid | 20.16 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2019 | 5/6 | SYR4 |
| Gross Alpha, Excl. Radon And U | 19.566 pCi/L 130% of the EPA limit, at the 95th percentile of samples — 15 pCi/L Main supplier: JOLIET · 160,000 people · 2019 | 1/6 | SYR4 |
| Bromodichloromethane | 15.72 µg/L No EPA limit set Highest in the ZIP: NEW LENOX · 27,690 people · 2019 | 5/6 | SYR4 |
| Trichloroacetic Acid | 11.58 µg/L No EPA limit set Highest in the ZIP: NEW LENOX · 27,690 people · 2019 | 5/6 | SYR4 |
| Dibromochloromethane | 7.95 µg/L No EPA limit set Highest in the ZIP: IL AMERICAN-HOMER TOWNSHIP · 24,543 people · 2019 | 5/6 | SYR4 |
| Arsenic | 0.5990 µg/L 6% of the EPA limit 10 µg/L Main supplier: JOLIET · 160,000 people · 2019
Highest in the ZIP: 7.827 µg/L — LOCKPORT · 23,100 people · 2019 | 2/6 | SYR4 |
| Combined Radium (-226 And -228) | 4.95 pCi/L 99% of the EPA limit 5 pCi/L Main supplier: JOLIET · 160,000 people · 2019 | 2/6 | SYR4 |
| Monochloroacetic Acid | 3.84 µg/L No EPA limit set Highest in the ZIP: IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019 | 3/6 | SYR4 |
| Dichloromethane | 3.67 µg/L 73% of the EPA limit 5 µg/L Main supplier: JOLIET · 160,000 people · 2019 | 1/6 | SYR4 |
| Bromoform | 1 µg/L No EPA limit set Main supplier: JOLIET · 160,000 people · 2019
Highest in the ZIP: 2.55 µg/L — IL AMERICAN-WEST SUBURBAN · 73,978 people · 2019 | 5/6 | SYR4 |
| Selenium | 2.52 µg/L 5% of the EPA limit 50 µg/L Main supplier: JOLIET · 160,000 people · 2019 | 2/6 | SYR4 |
| Dibromoacetic Acid | 1.475 µg/L No EPA limit set Main supplier: JOLIET · 160,000 people · 2019
Highest in the ZIP: 2.4 µg/L — IL AMERICAN-HOMER TOWNSHIP · 24,543 people · 2019 | 6/6 | SYR4 |
| Monobromoacetic Acid | 2.053 µg/L No EPA limit set Highest in the ZIP: LOCKPORT · 23,100 people · 2019 | 4/6 | SYR4 |
| Xylenes, Total | 1.801 µg/L 0% of the EPA limit 10000 µg/L Main supplier: JOLIET · 160,000 people · 2019 | 2/6 | SYR4 |
| Toluene | 0.6600 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the ZIP: LOCKPORT · 23,100 people · 2019 | 1/6 | SYR4 |
| Combined Uranium | 0.5155 µg/L 1.7% of the EPA limit 30 µg/L Main supplier: JOLIET · 160,000 people · 2019 | 1/6 | SYR4 |
| Lead | 0.0065 mg/L 43% of the EPA limit 0.0150 mg/L Main supplier: JOLIET · 160,000 people · 2026
Highest in the ZIP: 0.0300 mg/L — LOCKPORT · 23,100 people · 2025 | 6/6 | LCR |
| PFHXS | 0.0092 µg/L No EPA limit set Highest in the ZIP: LOCKPORT · 23,100 people · 2024 | 1/6 | UCMR-5 |
| Pfpea | 0.0082 µg/L No EPA limit set Highest in the ZIP: LOCKPORT · 23,100 people · 2024 | 1/6 | UCMR-5 |
| Pfba | 0.0056 µg/L No EPA limit set Highest in the ZIP: CORINTH PWD · 3,927 people · 2023 | 1/6 | UCMR-5 |
| Pfhxa | 0.0043 µg/L No EPA limit set Highest in the ZIP: LOCKPORT · 23,100 people · 2024 | 1/6 | UCMR-5 |
| PFBS | 0.0032 µg/L No EPA limit set Highest in the ZIP: LOCKPORT · 23,100 people · 2024 | 1/6 | UCMR-5 |
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 60441
| Supplier | State | Population served |
|---|---|---|
| JOLIET | 160,000 | |
| IL AMERICAN-WEST SUBURBAN | IL | 73,978 |
| NEW LENOX | IL | 27,690 |
| IL AMERICAN-HOMER TOWNSHIP | IL | 24,543 |
| LOCKPORT | IL | 23,100 |
| CORINTH PWD | IL | 3,927 |
Frequently asked questions about ZIP 60441 tap water
Is the tap water in ZIP 60441 safe to drink?
EPA testing detected 33 contaminants across the water suppliers serving ZIP 60441. 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 60441?
6 public water suppliers report EPA drinking-water monitoring for ZIP 60441. Each is listed above with its population served.
What contaminants are in ZIP 60441's water?
EPA monitoring detected Nitrate, Fluoride, Nitrate-Nitrite, Copper, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.