What was found in ZIP 61103
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 5260 µg/L 53% of the EPA limit 10000 µg/L | 2/2 | SYR4 |
| Nitrate-Nitrite | 4970 µg/L 50% of the EPA limit 10000 µg/L | 2/2 | SYR4 |
| Copper | 3400 µg/L 262% of the EPA limit, in the worst sample — 1300 µg/L | 2/2 | SYR4 |
| Fluoride | 1460 µg/L 37% of the EPA limit 4000 µg/L | 2/2 | SYR4 |
| Lead | 1200 µg/L 8000% of the EPA limit, in the worst sample — 15 µg/L | 2/2 | SYR4 |
| Barium | 920 µg/L 46% of the EPA limit 2000 µg/L | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 90.2 µg/L 150% of the EPA limit, in the worst sample — 60 µg/L | 2/2 | SYR4 |
| Monobromoacetic Acid | 81.5 µg/L No EPA limit set | 2/2 | SYR4 |
| TTHM | 42 µg/L 53% of the EPA limit 80 µg/L | 2/2 | SYR4 |
| Chloroform | 34 µg/L No EPA limit set | 2/2 | SYR4 |
| Dichloroacetic Acid | 15 µg/L No EPA limit set | 2/2 | SYR4 |
| cis-1,2-Dichloroethylene | 13 µg/L 19% of the EPA limit 70 µg/L | 1/2 | SYR4 |
| 1,1,1-Trichloroethane | 9.5 µg/L 4.8% of the EPA limit 200 µg/L | 1/2 | SYR4 |
| Lithium | 9.33 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Trichloroacetic Acid | 9 µg/L No EPA limit set | 2/2 | SYR4 |
| Arsenic | 8.9 µg/L 89% of the EPA limit 10 µg/L | 2/2 | SYR4 |
| Chromium | 6.7 µg/L 6.7% of the EPA limit 100 µg/L | 2/2 | SYR4 |
| Bromodichloromethane | 6.3 µg/L No EPA limit set | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 6 pCi/L 120% of the EPA limit, in the worst sample — 5 pCi/L | 2/2 | SYR4 |
| Dibromochloromethane | 4.6 µg/L No EPA limit set | 2/2 | SYR4 |
| Selenium | 4 µg/L 8% of the EPA limit 50 µg/L | 2/2 | SYR4 |
| Bromoform | 3.476 µg/L No EPA limit set | 2/2 | SYR4 |
| Tetrachloroethylene | 2.4 µg/L 48% of the EPA limit 5 µg/L | 2/2 | SYR4 |
| Dibromoacetic Acid | 2.3 µg/L No EPA limit set | 2/2 | SYR4 |
| Trichloroethylene | 2.3 µg/L 46% of the EPA limit 5 µg/L | 2/2 | SYR4 |
| trans-1,2-Dichloroethylene | 1.3 µg/L 1.3% of the EPA limit 100 µg/L | 1/2 | SYR4 |
| Carbon Tetrachloride | 0.8600 µg/L 17% of the EPA limit 5 µg/L | 1/2 | SYR4 |
| PFHXS | 0.0182 µg/L No EPA limit set | 2/2 | UCMR-5 |
| Lead | 0.0073 mg/L 49% of the EPA limit 0.0150 mg/L | 2/2 | LCR |
| PFOS | 0.0073 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Pfba | 0.0070 µg/L No EPA limit set | 1/2 | UCMR-5 |
| PFOA | 0.0062 µg/L No EPA limit set | 1/2 | UCMR-5 |
| PFBS | 0.0054 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Pfhxa | 0.0047 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Pfpea | 0.0044 µg/L No EPA limit set | 2/2 | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 61103
| Supplier | State | Population served |
|---|---|---|
| ROCKFORD | IL | 147,051 |
| NORTH PARK PWD | IL | 35,580 |
Frequently asked questions about ZIP 61103 tap water
Is the tap water in ZIP 61103 safe to drink?
EPA testing detected 35 contaminants across the water suppliers serving ZIP 61103. 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 61103?
2 public water suppliers report EPA drinking-water monitoring for ZIP 61103. Each is listed above with its population served.
What contaminants are in ZIP 61103's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Copper, Fluoride, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.