What was found in ZIP 55331
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 |
|---|---|---|---|
| Copper | 1360 µg/L 105% of the EPA limit, in the worst sample — 1300 µg/L | 2/2 | SYR4 |
| Fluoride | 1200 µg/L 30% of the EPA limit 4000 µg/L | 1/2 | SYR4 |
| Nitrate-Nitrite | 50 µg/L 0.5% of the EPA limit 10000 µg/L | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 23.1 µg/L 39% of the EPA limit 60 µg/L | 1/2 | SYR4 |
| Lead | 15.8 µg/L 105% of the EPA limit, in the worst sample — 15 µg/L | 2/2 | SYR4 |
| TTHM | 13.3 µg/L 17% of the EPA limit 80 µg/L | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 12 pCi/L 80% of the EPA limit 15 pCi/L | 1/2 | SYR4 |
| Lithium | 12 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Arsenic | 6.09 µg/L 61% of the EPA limit 10 µg/L | 1/2 | SYR4 |
| Dichloroacetic Acid | 2.8 µg/L No EPA limit set | 1/2 | SYR4 |
| Chloroform | 1.4 µg/L No EPA limit set | 1/2 | SYR4 |
| Trichloroacetic Acid | 1.2 µg/L No EPA limit set | 1/2 | SYR4 |
| Pfba | 0.0130 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L | 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 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 55331
| Supplier | State | Population served |
|---|---|---|
| Shorewood | MN | 3,890 |
| LAKESIDE ESTATES | SD | 460 |
Frequently asked questions about ZIP 55331 tap water
Is the tap water in ZIP 55331 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 55331. 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 55331?
2 public water suppliers report EPA drinking-water monitoring for ZIP 55331. Each is listed above with its population served.
What contaminants are in ZIP 55331's water?
EPA monitoring detected Copper, Fluoride, Nitrate-Nitrite, Total Haloacetic Acids (HAA5), Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.