What was found in ZIP 57580
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 | 3500 µg/L 35% of the EPA limit 10000 µg/L Main supplier: TRIPP COUNTY WATER USER DISTRICT · 4,860 people · 2019
Highest in the ZIP: 5300 µg/L — WINNER · 2,921 people · 2019 | 2/2 | SYR4 |
| Copper | 330 µg/L 25% of the EPA limit 1300 µg/L Main supplier: TRIPP COUNTY WATER USER DISTRICT · 4,860 people · 2018
Highest in the ZIP: 563 µg/L — WINNER · 2,921 people · 2018 | 2/2 | SYR4 |
| Barium | 77.255 µg/L 3.9% of the EPA limit 2000 µg/L Main supplier: TRIPP COUNTY WATER USER DISTRICT · 4,860 people · 2012
Highest in the ZIP: 79.9 µg/L — WINNER · 2,921 people · 2019 | 2/2 | SYR4 |
| TTHM | 7.1815 µg/L 9% of the EPA limit 80 µg/L Main supplier: TRIPP COUNTY WATER USER DISTRICT · 4,860 people · 2019
Highest in the ZIP: 29.06 µg/L — WINNER · 2,921 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.33 µg/L 2.2% of the EPA limit 60 µg/L Main supplier: TRIPP COUNTY WATER USER DISTRICT · 4,860 people · 2019
Highest in the ZIP: 16.96 µg/L — WINNER · 2,921 people · 2019 | 2/2 | SYR4 |
| Arsenic | 4 µg/L 40% of the EPA limit 10 µg/L Main supplier: TRIPP COUNTY WATER USER DISTRICT · 4,860 people · 2012
Highest in the ZIP: 5 µg/L — WINNER · 2,921 people · 2019 | 2/2 | SYR4 |
| Lead | 4.8 µg/L 32% of the EPA limit 15 µg/L Main supplier: TRIPP COUNTY WATER USER DISTRICT · 4,860 people · 2018 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.98 pCi/L 13% of the EPA limit 15 pCi/L Main supplier: TRIPP COUNTY WATER USER DISTRICT · 4,860 people · 2012
Highest in the ZIP: 3.8 pCi/L — WINNER · 2,921 people · 2015 | 2/2 | SYR4 |
| Chromium | 3.18 µg/L 3.2% of the EPA limit 100 µg/L Main supplier: TRIPP COUNTY WATER USER DISTRICT · 4,860 people · 2012 | 1/2 | SYR4 |
| Selenium | 1.285 µg/L 2.6% of the EPA limit 50 µg/L Main supplier: TRIPP COUNTY WATER USER DISTRICT · 4,860 people · 2012
Highest in the ZIP: 3.07 µg/L — WINNER · 2,921 people · 2019 | 2/2 | SYR4 |
| Antimony, Total | 0.2000 µg/L 3.3% of the EPA limit 6 µg/L Highest in the ZIP: WINNER · 2,921 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: TRIPP COUNTY WATER USER DISTRICT · 4,860 people · 2024
Highest in the ZIP: 0.0030 mg/L — WINNER · 2,921 people · 2024 | 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 57580
| Supplier | State | Population served |
|---|---|---|
| TRIPP COUNTY WATER USER DISTRICT | SD | 4,860 |
| WINNER | SD | 2,921 |
Frequently asked questions about ZIP 57580 tap water
Is the tap water in ZIP 57580 safe to drink?
EPA testing detected 12 contaminants across the water suppliers serving ZIP 57580. 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 57580?
2 public water suppliers report EPA drinking-water monitoring for ZIP 57580. Each is listed above with its population served.
What contaminants are in ZIP 57580's water?
EPA monitoring detected Nitrate, Copper, Barium, TTHM, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.