What was found in ZIP 53186
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 |
|---|---|---|---|
| Fluoride | 970 µg/L 24% of the EPA limit 4000 µg/L | 3/3 | SYR4 |
| Copper | 530 µg/L 41% of the EPA limit 1300 µg/L | 3/3 | SYR4 |
| Nitrate | 250 µg/L 2.5% of the EPA limit 10000 µg/L | 3/3 | SYR4 |
| Barium | 240 µg/L 12% of the EPA limit 2000 µg/L | 3/3 | SYR4 |
| Nitrate-Nitrite | 160 µg/L 1.6% of the EPA limit 10000 µg/L | 2/3 | SYR4 |
| Lead | 140 µg/L 933% of the EPA limit, in the worst sample — 15 µg/L | 3/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 48.2 pCi/L 321% of the EPA limit, in the worst sample — 15 pCi/L | 3/3 | SYR4 |
| Cyanide | 40 µg/L 20% of the EPA limit 200 µg/L | 1/3 | SYR4 |
| TTHM | 37.9 µg/L 47% of the EPA limit 80 µg/L | 3/3 | SYR4 |
| Gross Beta Particle Activity | 28.8 pCi/L No EPA limit set | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 22 pCi/L 440% of the EPA limit, in the worst sample — 5 pCi/L | 3/3 | SYR4 |
| Dibromochloromethane | 16 µg/L No EPA limit set | 3/3 | SYR4 |
| Bromodichloromethane | 11 µg/L No EPA limit set | 3/3 | SYR4 |
| Bromoform | 8.7 µg/L No EPA limit set | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 8.56 µg/L 14% of the EPA limit 60 µg/L | 3/3 | SYR4 |
| Chloroform | 7.2 µg/L No EPA limit set | 3/3 | SYR4 |
| Arsenic | 6.4 µg/L 64% of the EPA limit 10 µg/L | 3/3 | SYR4 |
| Combined Uranium | 5.7733333 µg/L 19% of the EPA limit 30 µg/L | 2/3 | SYR4 |
| Xylenes, Total | 5.7 µg/L 0.1% of the EPA limit 10000 µg/L | 1/3 | SYR4 |
| Dibromoacetic Acid | 4.5 µg/L No EPA limit set | 3/3 | SYR4 |
| Dichloroacetic Acid | 2.6 µg/L No EPA limit set | 3/3 | SYR4 |
| Tetrachloroethylene | 2.1 µg/L 42% of the EPA limit 5 µg/L | 1/3 | SYR4 |
| Trichloroacetic Acid | 2 µg/L No EPA limit set | 3/3 | SYR4 |
| Monobromoacetic Acid | 1.7 µg/L No EPA limit set | 3/3 | SYR4 |
| Trichloroethylene | 1.1 µg/L 22% of the EPA limit 5 µg/L | 1/3 | SYR4 |
| Ethylbenzene | 0.7100 µg/L 0.1% of the EPA limit 700 µg/L | 1/3 | SYR4 |
| Antimony, Total | 0.4200 µg/L 7% of the EPA limit 6 µg/L | 1/3 | SYR4 |
| Mercury | 0.3100 µg/L 16% of the EPA limit 2 µg/L | 1/3 | SYR4 |
| Thallium, Total | 0.2300 µg/L 12% of the EPA limit 2 µg/L | 1/3 | SYR4 |
| Lead | 0.0034 mg/L 23% of the EPA limit 0.0150 mg/L | 3/3 | 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 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 53186
| Supplier | State | Population served |
|---|---|---|
| WAUKESHA WATER UTILITY | 70,718 | |
| PEWAUKEE CITY WATER AND SEWER UTILITY | WI | 8,671 |
| TOWN OF BROOKFIELD SAN DIST 4 | WI | 6,419 |
Frequently asked questions about ZIP 53186 tap water
Is the tap water in ZIP 53186 safe to drink?
EPA testing detected 30 contaminants across the water suppliers serving ZIP 53186. 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 53186?
3 public water suppliers report EPA drinking-water monitoring for ZIP 53186. Each is listed above with its population served.
What contaminants are in ZIP 53186's water?
EPA monitoring detected Fluoride, Copper, Nitrate, Barium, Nitrate-Nitrite, and others across this ZIP's suppliers. The full list with levels and sources is above.