What was found in ZIP 57401
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 |
|---|---|---|---|
| Copper | 170 µg/L 13% of the EPA limit 1300 µg/L Main supplier: ABERDEEN · 27,989 people · 2017
Highest in the ZIP: 1399 µg/L — ROLLING MEADOWS · 83 people · 2018 | 14/14 | SYR4 |
| Fluoride | 480 µg/L 12% of the EPA limit 4000 µg/L Highest in the ZIP: WEB WATER DEVELOPMENT ASSOCIATION · 20,750 people · 2019 | 1/14 | SYR4 |
| Nitrate | 400 µg/L 4% of the EPA limit 10000 µg/L Highest in the ZIP: WEB WATER DEVELOPMENT ASSOCIATION · 20,750 people · 2019 | 1/14 | SYR4 |
| Lithium | 100 µg/L No EPA limit set Main supplier: ABERDEEN · 27,989 people · 2023 | 2/14 | UCMR-5 |
| Barium | 47.6 µg/L 2.4% of the EPA limit 2000 µg/L Highest in the ZIP: WEB WATER DEVELOPMENT ASSOCIATION · 20,750 people · 2013 | 1/14 | SYR4 |
| TTHM | 22.389999999999997 µg/L 28% of the EPA limit 80 µg/L Main supplier: ABERDEEN · 27,989 people · 2019
Highest in the ZIP: 38.85999999999998 µg/L — THE MEADOWS · 80 people · 2019 | 13/14 | SYR4 |
| Total Haloacetic Acids (HAA5) | 28.119999999999994 µg/L 47% of the EPA limit 60 µg/L Main supplier: ABERDEEN · 27,989 people · 2019 | 13/14 | SYR4 |
| Lead | 14.7 µg/L 98% of the EPA limit 15 µg/L Main supplier: ABERDEEN · 27,989 people · 2017 | 14/14 | SYR4 |
| Chromium | 4.7 µg/L 4.7% of the EPA limit 100 µg/L Highest in the ZIP: WEB WATER DEVELOPMENT ASSOCIATION · 20,750 people · 2013 | 1/14 | SYR4 |
| Selenium | 1.7 µg/L 3.4% of the EPA limit 50 µg/L Highest in the ZIP: WEB WATER DEVELOPMENT ASSOCIATION · 20,750 people · 2013 | 1/14 | SYR4 |
| Antimony, Total | 0.3000 µg/L 5% of the EPA limit 6 µg/L Highest in the ZIP: WEB WATER DEVELOPMENT ASSOCIATION · 20,750 people · 2013 | 1/14 | SYR4 |
| Pfba | 0.0081 µg/L No EPA limit set Main supplier: ABERDEEN · 27,989 people · 2023 | 1/14 | UCMR-5 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: ABERDEEN · 27,989 people · 2025 | 14/14 | 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 57401
| Supplier | State | Population served |
|---|---|---|
| ABERDEEN | SD | 27,989 |
| WEB WATER DEVELOPMENT ASSOCIATION | SD | 20,750 |
| MINA LAKE SANITARY DISTRICT | SD | 863 |
| LAKESIDE ESTATES | SD | 460 |
| COUNTRY VILLAGE PARK | SD | 340 |
| PRAIRIEWOOD PROPERTY OWNERS | SD | 300 |
| FORDHAM COLONY | SD | 142 |
| JOBEE ACRES | SD | 108 |
| PLEASANT VALLEY ESTATES | SD | 105 |
| NORTHWOOD FIRST SUBDIVISION | SD | 90 |
| WESTPORT SANITARY DISTRICT | SD | 88 |
| ROLLING MEADOWS | SD | 83 |
| THE MEADOWS | SD | 80 |
| RICHMOND HEIGHTS HOMEOWNERS ASSOCIAT | SD | 67 |
Frequently asked questions about ZIP 57401 tap water
Is the tap water in ZIP 57401 safe to drink?
EPA testing detected 13 contaminants across the water suppliers serving ZIP 57401. 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 57401?
14 public water suppliers report EPA drinking-water monitoring for ZIP 57401. Each is listed above with its population served.
What contaminants are in ZIP 57401's water?
EPA monitoring detected Copper, Fluoride, Nitrate, Lithium, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.