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Tap water quality report

ZIP 55330 — Elk River, MN

EPA monitoring across the 2 water suppliers serving ZIP 55330 in Elk River, MN detected 16 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

2
water suppliers
38,532
people served
16
contaminants found

What was found in ZIP 55330

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.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
2300 µg/L 23%
of the EPA limit 10000 µg/L
Main supplier: Elk River · 19,532 people · 2019
1/2 SYR4
Fluoride
1400 µg/L 35%
of the EPA limit 4000 µg/L
Main supplier: Elk River · 19,532 people · 2019
2/2 SYR4
Copper
287.55 µg/L 22%
of the EPA limit 1300 µg/L
Main supplier: Elk River · 19,532 people · 2019
Highest in the ZIP: 558.3 µg/L — Otsego · 19,000 people · 2017
2/2 SYR4
Barium
27.505 µg/L 1.4%
of the EPA limit 2000 µg/L
Main supplier: Elk River · 19,532 people · 2018
Highest in the ZIP: 152.47 µg/L — Otsego · 19,000 people · 2016
2/2 SYR4
Gross Alpha, Excl. Radon And U
3.1 pCi/L 21%
of the EPA limit 15 pCi/L
Main supplier: Elk River · 19,532 people · 2018
Highest in the ZIP: 22.6 pCi/L — Otsego · 19,000 people · 2019
2/2 SYR4
Lead
3.77 µg/L 25%
of the EPA limit 15 µg/L
Main supplier: Elk River · 19,532 people · 2019
Highest in the ZIP: 18.065 µg/L — Otsego · 19,000 people · 2017
2/2 SYR4
Chloroform
8.52 µg/L
No EPA limit set
Main supplier: Elk River · 19,532 people · 2019
2/2 SYR4
Dichloroacetic Acid
4.65 µg/L
No EPA limit set
Main supplier: Elk River · 19,532 people · 2019
2/2 SYR4
Trichloroacetic Acid
4.6 µg/L
No EPA limit set
Main supplier: Elk River · 19,532 people · 2019
2/2 SYR4
Chromium
3.76 µg/L 3.8%
of the EPA limit 100 µg/L
Main supplier: Elk River · 19,532 people · 2018
1/2 SYR4
Bromodichloromethane
2.69 µg/L
No EPA limit set
Main supplier: Elk River · 19,532 people · 2019
2/2 SYR4
Dibromochloromethane
1.6 µg/L
No EPA limit set
Main supplier: Elk River · 19,532 people · 2019
1/2 SYR4
Dibromoacetic Acid
1.1 µg/L
No EPA limit set
Main supplier: Elk River · 19,532 people · 2019
1/2 SYR4
Bromoform
0.5000 µg/L
No EPA limit set
Main supplier: Elk River · 19,532 people · 2019
1/2 SYR4
2,4-D
0.2500 µg/L 0.4%
of the EPA limit 70 µg/L
Main supplier: Elk River · 19,532 people · 2018
1/2 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: Elk River · 19,532 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 55330

SupplierStatePopulation served
Elk River MN 19,532
Otsego MN 19,000

Frequently asked questions about ZIP 55330 tap water

Is the tap water in ZIP 55330 safe to drink?

EPA testing detected 16 contaminants across the water suppliers serving ZIP 55330. 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 55330?

2 public water suppliers report EPA drinking-water monitoring for ZIP 55330. Each is listed above with its population served.

What contaminants are in ZIP 55330's water?

EPA monitoring detected Nitrate-Nitrite, Fluoride, Copper, Barium, Gross Alpha, Excl. Radon And U, and others across this ZIP's suppliers. The full list with levels and sources is above.