← Jamestown, ND

Tap water quality report

ZIP 58421 — Jamestown, ND

EPA monitoring across the 2 water suppliers serving ZIP 58421 in Jamestown, ND detected 21 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

2
water suppliers
10,830
people served
21
contaminants found

What was found in ZIP 58421

The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Copper
1400 µg/L 108%
of the EPA limit, in the worst sample — 1300 µg/L
2/2 SYR4
Fluoride
724 µg/L 18%
of the EPA limit 4000 µg/L
2/2 SYR4
Lithium
99.5 µg/L
No EPA limit set
2/2 UCMR-5
Barium
42.3 µg/L 2.1%
of the EPA limit 2000 µg/L
2/2 SYR4
Nitrate-Nitrite
40 µg/L 0.4%
of the EPA limit 10000 µg/L
1/2 SYR4
Dibromoacetic Acid
17.3 µg/L
No EPA limit set
2/2 SYR4
Total Haloacetic Acids (HAA5)
17.3 µg/L 29%
of the EPA limit 60 µg/L
2/2 SYR4
Lead
5.5 µg/L 37%
of the EPA limit 15 µg/L
2/2 SYR4
Arsenic
3.9 µg/L 39%
of the EPA limit 10 µg/L
2/2 SYR4
Monobromoacetic Acid
3.82 µg/L
No EPA limit set
1/2 SYR4
TTHM
3.56 µg/L 4.5%
of the EPA limit 80 µg/L
2/2 SYR4
Chromium
3.17 µg/L 3.2%
of the EPA limit 100 µg/L
1/2 SYR4
Combined Uranium
1.54 µg/L 5.1%
of the EPA limit 30 µg/L
2/2 SYR4
Combined Radium (-226 And -228)
1.36 pCi/L 27%
of the EPA limit 5 pCi/L
2/2 SYR4
Dichloroacetic Acid
1.34 µg/L
No EPA limit set
2/2 SYR4
Chloroform
1.26 µg/L
No EPA limit set
2/2 SYR4
Bromodichloromethane
1.14 µg/L
No EPA limit set
1/2 SYR4
Dibromochloromethane
0.9000 µg/L
No EPA limit set
1/2 SYR4
Bromoform
0.8200 µg/L
No EPA limit set
1/2 SYR4
Gross Alpha, Excl. Radon And U
0.1660 pCi/L 1.1%
of the EPA limit 15 pCi/L
1/2 SYR4
Lead
0.0022 mg/L 15%
of the EPA limit 0.0150 mg/L
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 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 58421

SupplierStatePopulation served
STUTSMAN RURAL WATER DISTRICT ND 5,550
GREATER RAMSEY WATER DISTRICT ND 5,280

Frequently asked questions about ZIP 58421 tap water

Is the tap water in ZIP 58421 safe to drink?

EPA testing detected 21 contaminants across the water suppliers serving ZIP 58421. 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 58421?

2 public water suppliers report EPA drinking-water monitoring for ZIP 58421. Each is listed above with its population served.

What contaminants are in ZIP 58421's water?

EPA monitoring detected Copper, Fluoride, Lithium, Barium, Nitrate-Nitrite, and others across this ZIP's suppliers. The full list with levels and sources is above.