What was found in ZIP 58504
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 |
|---|---|---|---|
| Fluoride | 760 µg/L 19% of the EPA limit 4000 µg/L | 1/3 | SYR4 |
| Lead | 416 µg/L 2773% of the EPA limit, in the worst sample — 15 µg/L | 2/3 | SYR4 |
| Copper | 350 µg/L 27% of the EPA limit 1300 µg/L | 3/3 | SYR4 |
| Nitrate-Nitrite | 320 µg/L 3.2% of the EPA limit 10000 µg/L | 1/3 | SYR4 |
| TTHM | 142.5 µg/L 178% of the EPA limit, in the worst sample — 80 µg/L | 3/3 | SYR4 |
| Chloroform | 105.8 µg/L No EPA limit set | 3/3 | SYR4 |
| Lithium | 79.4 µg/L No EPA limit set | 3/3 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 67.84 µg/L 113% of the EPA limit, in the worst sample — 60 µg/L | 3/3 | SYR4 |
| Cyanide | 66 µg/L 33% of the EPA limit 200 µg/L | 1/3 | SYR4 |
| Dichloroacetic Acid | 51.4 µg/L No EPA limit set | 3/3 | SYR4 |
| Bromodichloromethane | 26.41 µg/L No EPA limit set | 3/3 | SYR4 |
| Barium | 19.7 µg/L 1% of the EPA limit 2000 µg/L | 1/3 | SYR4 |
| Dibromochloromethane | 13.48 µg/L No EPA limit set | 3/3 | SYR4 |
| Trichloroacetic Acid | 11 µg/L No EPA limit set | 3/3 | SYR4 |
| Dibromoacetic Acid | 8.68 µg/L No EPA limit set | 3/3 | SYR4 |
| Monochloroacetic Acid | 7.34 µg/L No EPA limit set | 3/3 | SYR4 |
| Bromoform | 3.57 µg/L No EPA limit set | 3/3 | SYR4 |
| Arsenic | 1.73 µg/L 17% of the EPA limit 10 µg/L | 1/3 | SYR4 |
| Monobromoacetic Acid | 1.51 µg/L No EPA limit set | 2/3 | SYR4 |
| Selenium | 1.23 µg/L 2.5% of the EPA limit 50 µg/L | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.17 pCi/L 23% of the EPA limit 5 pCi/L | 1/3 | SYR4 |
| Dichloromethane | 1.1 µg/L 22% of the EPA limit 5 µg/L | 1/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.4400 pCi/L 2.9% of the EPA limit 15 pCi/L | 1/3 | SYR4 |
| Combined Uranium | 0.1400 µg/L 0.5% of the EPA limit 30 µg/L | 1/3 | SYR4 |
| Pentachlorophenol | 0.0300 µg/L 3% of the EPA limit 1 µg/L | 1/3 | SYR4 |
| Pfba | 0.0059 µg/L No EPA limit set | 1/3 | UCMR-5 |
| Lead | 0.0028 mg/L 19% of the EPA limit 0.0150 mg/L | 3/3 | 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 58504
| Supplier | State | Population served |
|---|---|---|
| BISMARCK CITY OF | ND | 72,417 |
| LINCOLN CITY OF | ND | 4,257 |
| SOUTH CENTRAL REGIONAL WATER DISTRICT | ND | 3,700 |
Frequently asked questions about ZIP 58504 tap water
Is the tap water in ZIP 58504 safe to drink?
EPA testing detected 27 contaminants across the water suppliers serving ZIP 58504. 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 58504?
3 public water suppliers report EPA drinking-water monitoring for ZIP 58504. Each is listed above with its population served.
What contaminants are in ZIP 58504's water?
EPA monitoring detected Fluoride, Lead, Copper, Nitrate-Nitrite, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.