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Tap water quality report

ZIP 57744 — Hermosa, SD

EPA monitoring across the 4 water suppliers serving ZIP 57744 in Hermosa, SD detected 11 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.

4
water suppliers
663
people served
11
contaminants found

What was found in ZIP 57744

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
Fluoride
500 µg/L 13%
of the EPA limit 4000 µg/L
Highest in the ZIP: HEARTLAND COUNTRY RANCHETTES · 95 people · 2013
2/4 SYR4
Nitrate
333 µg/L 3.3%
of the EPA limit 10000 µg/L
Highest in the ZIP: HEARTLAND COUNTRY RANCHETTES · 95 people · 2018
2/4 SYR4
Copper
250.54999999999995 µg/L 19%
of the EPA limit 1300 µg/L
Main supplier: HERMOSA-OLD SYSTEM · 420 people · 2017
3/4 SYR4
Barium
90 µg/L 4.5%
of the EPA limit 2000 µg/L
Highest in the ZIP: HERMOSA WATER USERS ASSOCIATION · 108 people · 2014
2/4 SYR4
Combined Uranium
23.5 µg/L 78%
of the EPA limit 30 µg/L
Highest in the ZIP: HEARTLAND COUNTRY RANCHETTES · 95 people · 2019
1/4 SYR4
TTHM
14.402999999999999 µg/L 18%
of the EPA limit 80 µg/L
Main supplier: HERMOSA-OLD SYSTEM · 420 people · 2017
1/4 SYR4
Gross Alpha, Excl. Radon And U
13.3 pCi/L 89%
of the EPA limit 15 pCi/L
Main supplier: HERMOSA-OLD SYSTEM · 420 people · 2017
3/4 SYR4
Lead
1 µg/L 6.7%
of the EPA limit 15 µg/L
Main supplier: HERMOSA-OLD SYSTEM · 420 people · 2017
Highest in the ZIP: 13.099999999999993 µg/L — HEARTLAND COUNTRY RANCHETTES · 95 people · 2019
3/4 SYR4
Selenium
9 µg/L 18%
of the EPA limit 50 µg/L
Highest in the ZIP: HEARTLAND COUNTRY RANCHETTES · 95 people · 2013
1/4 SYR4
Arsenic
6 µg/L 60%
of the EPA limit 10 µg/L
Highest in the ZIP: HERMOSA WATER USERS ASSOCIATION · 108 people · 2014
1/4 SYR4
Lead
0.0070 mg/L 47%
of the EPA limit 0.0150 mg/L
Main supplier: HERMOSA-OLD SYSTEM · 420 people · 2023
4/4 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 57744

Frequently asked questions about ZIP 57744 tap water

Is the tap water in ZIP 57744 safe to drink?

EPA testing detected 11 contaminants across the water suppliers serving ZIP 57744. 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 57744?

4 public water suppliers report EPA drinking-water monitoring for ZIP 57744. Each is listed above with its population served.

What contaminants are in ZIP 57744's water?

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