What was found in ZIP 58017
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 | 783.45 µg/L 60% of the EPA limit 1300 µg/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2019
Highest in the ZIP: 983.3 µg/L — CASS RURAL WATER DISTRICT-PHASE I · 3,658 people · 2018 | 2/2 | SYR4 |
| Fluoride | 733 µg/L 18% of the EPA limit 4000 µg/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2018
Highest in the ZIP: 846 µg/L — CASS RURAL WATER DISTRICT-PHASE I · 3,658 people · 2018 | 2/2 | SYR4 |
| Barium | 247 µg/L 12% of the EPA limit 2000 µg/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2018 | 2/2 | SYR4 |
| Nitrate-Nitrite | 110 µg/L 1.1% of the EPA limit 10000 µg/L Highest in the ZIP: CASS RURAL WATER DISTRICT-PHASE I · 3,658 people · 2019 | 1/2 | SYR4 |
| TTHM | 30.0105 µg/L 38% of the EPA limit 80 µg/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2019 | 2/2 | SYR4 |
| Lithium | 10.7 µg/L No EPA limit set Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2025
Highest in the ZIP: 27.6 µg/L — CASS RURAL WATER DISTRICT-PHASE I · 3,658 people · 2023 | 2/2 | UCMR-5 |
| Chloroform | 18.525 µg/L No EPA limit set Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 18.3135 µg/L 31% of the EPA limit 60 µg/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 9.725 µg/L No EPA limit set Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2019 | 2/2 | SYR4 |
| Arsenic | 8.94 µg/L 89% of the EPA limit 10 µg/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2016 | 1/2 | SYR4 |
| Trichloroacetic Acid | 7.064 µg/L No EPA limit set Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2019 | 2/2 | SYR4 |
| Lead | 5.942 µg/L 40% of the EPA limit 15 µg/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2019
Highest in the ZIP: 6.488 µg/L — CASS RURAL WATER DISTRICT-PHASE I · 3,658 people · 2018 | 2/2 | SYR4 |
| Bromodichloromethane | 4.147 µg/L No EPA limit set Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2019 | 2/2 | SYR4 |
| Chromium | 1.58 µg/L 1.6% of the EPA limit 100 µg/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2018
Highest in the ZIP: 3 µg/L — CASS RURAL WATER DISTRICT-PHASE I · 3,658 people · 2018 | 2/2 | SYR4 |
| Monobromoacetic Acid | 2.84 µg/L No EPA limit set Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2019 | 1/2 | SYR4 |
| Combined Uranium | 2.49 µg/L 8.3% of the EPA limit 30 µg/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2017 | 1/2 | SYR4 |
| Dibromoacetic Acid | 2.248 µg/L No EPA limit set Highest in the ZIP: CASS RURAL WATER DISTRICT-PHASE I · 3,658 people · 2019 | 1/2 | SYR4 |
| Selenium | 1.99 µg/L 4% of the EPA limit 50 µg/L Highest in the ZIP: CASS RURAL WATER DISTRICT-PHASE I · 3,658 people · 2018 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.5000 pCi/L 3.3% of the EPA limit 15 pCi/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2017
Highest in the ZIP: 1.48 pCi/L — CASS RURAL WATER DISTRICT-PHASE I · 3,658 people · 2017 | 2/2 | SYR4 |
| Dibromochloromethane | 0.8750 µg/L No EPA limit set Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2019
Highest in the ZIP: 1.139 µg/L — CASS RURAL WATER DISTRICT-PHASE I · 3,658 people · 2019 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.9600 pCi/L 19% of the EPA limit 5 pCi/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2017 | 2/2 | SYR4 |
| Lead | 0.0039 mg/L 26% of the EPA limit 0.0150 mg/L Main supplier: SOUTHEAST WUD (EAST) · 4,225 people · 2025 | 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 58017
| Supplier | State | Population served |
|---|---|---|
| SOUTHEAST WUD (EAST) | ND | 4,225 |
| CASS RURAL WATER DISTRICT-PHASE I | ND | 3,658 |
Frequently asked questions about ZIP 58017 tap water
Is the tap water in ZIP 58017 safe to drink?
EPA testing detected 22 contaminants across the water suppliers serving ZIP 58017. 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 58017?
2 public water suppliers report EPA drinking-water monitoring for ZIP 58017. Each is listed above with its population served.
What contaminants are in ZIP 58017's water?
EPA monitoring detected Copper, Fluoride, Barium, Nitrate-Nitrite, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.