What was found in ZIP 57069
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 | 900 µg/L 9% of the EPA limit 10000 µg/L Main supplier: VERMILLION · 11,695 people · 2019 | 2/4 | SYR4 |
| Fluoride | 680 µg/L 17% of the EPA limit 4000 µg/L Main supplier: VERMILLION · 11,695 people · 2018
Highest in the ZIP: 700 µg/L — LEWIS AND CLARK REGIONAL WATER SYSTE · 0 people · 2016 | 2/4 | SYR4 |
| Lithium | 440 µg/L No EPA limit set Main supplier: VERMILLION · 11,695 people · 2025 | 2/4 | UCMR-5 |
| Copper | 25.5 µg/L 2% of the EPA limit 1300 µg/L Main supplier: VERMILLION · 11,695 people · 2018
Highest in the ZIP: 341.05 µg/L — PIEDMONT · 971 people · 2019 | 3/4 | SYR4 |
| TTHM | 43.155 µg/L 54% of the EPA limit 80 µg/L Main supplier: VERMILLION · 11,695 people · 2019
Highest in the ZIP: 44.76 µg/L — CLAY RURAL WATER SYSTEM · 4,780 people · 2019 | 3/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 15.384 µg/L 26% of the EPA limit 60 µg/L Main supplier: VERMILLION · 11,695 people · 2019 | 2/4 | SYR4 |
| Barium | 7.4 µg/L 0.4% of the EPA limit 2000 µg/L Main supplier: VERMILLION · 11,695 people · 2012
Highest in the ZIP: 15.1 µg/L — LEWIS AND CLARK REGIONAL WATER SYSTE · 0 people · 2019 | 3/4 | SYR4 |
| Lead | 1.765 µg/L 12% of the EPA limit 15 µg/L Main supplier: VERMILLION · 11,695 people · 2018
Highest in the ZIP: 10 µg/L — PIEDMONT · 971 people · 2019 | 3/4 | SYR4 |
| Arsenic | 4 µg/L 40% of the EPA limit 10 µg/L Highest in the ZIP: LEWIS AND CLARK REGIONAL WATER SYSTE · 0 people · 2019 | 2/4 | SYR4 |
| Chromium | 1.3 µg/L 1.3% of the EPA limit 100 µg/L Main supplier: VERMILLION · 11,695 people · 2012
Highest in the ZIP: 1.4 µg/L — CLAY RURAL WATER SYSTEM · 4,780 people · 2012 | 3/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.3 pCi/L 8.7% of the EPA limit 15 pCi/L Main supplier: VERMILLION · 11,695 people · 2012 | 1/4 | SYR4 |
| Selenium | 0.9000 µg/L 1.8% of the EPA limit 50 µg/L Main supplier: VERMILLION · 11,695 people · 2012 | 2/4 | SYR4 |
| Mercury | 0.1300 µg/L 6.5% of the EPA limit 2 µg/L Highest in the ZIP: LEWIS AND CLARK REGIONAL WATER SYSTE · 0 people · 2019 | 1/4 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: VERMILLION · 11,695 people · 2024
Highest in the ZIP: 0.0030 mg/L — PIEDMONT · 971 people · 2025 | 3/4 | 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 57069
| Supplier | State | Population served |
|---|---|---|
| VERMILLION | SD | 11,695 |
| CLAY RURAL WATER SYSTEM | SD | 4,780 |
| PIEDMONT | SD | 971 |
| LEWIS AND CLARK REGIONAL WATER SYSTE | SD | 0 |
Frequently asked questions about ZIP 57069 tap water
Is the tap water in ZIP 57069 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 57069. 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 57069?
4 public water suppliers report EPA drinking-water monitoring for ZIP 57069. Each is listed above with its population served.
What contaminants are in ZIP 57069's water?
EPA monitoring detected Nitrate, Fluoride, Lithium, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.