← Black Hawk, SD

Tap water quality report

ZIP 81413 — Black Hawk, SD

EPA monitoring across the 1 water supplier serving ZIP 81413 in Black Hawk, SD detected 8 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.

1
water supplier
170
people served
8
contaminants found

What was found in ZIP 81413

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
Barium
328 µg/L 16%
of the EPA limit 2000 µg/L
Main supplier: RAPID CITY MOBILE HOME PARK · 170 people · 2012
1/1 SYR4
Fluoride
300 µg/L 7.5%
of the EPA limit 4000 µg/L
Main supplier: RAPID CITY MOBILE HOME PARK · 170 people · 2012
1/1 SYR4
Copper
157.6 µg/L 12%
of the EPA limit 1300 µg/L
Main supplier: RAPID CITY MOBILE HOME PARK · 170 people · 2018
1/1 SYR4
Nitrate
112 µg/L 1.1%
of the EPA limit 10000 µg/L
Main supplier: RAPID CITY MOBILE HOME PARK · 170 people · 2018
1/1 SYR4
Lead
11.299999999999999 µg/L 75%
of the EPA limit 15 µg/L
Main supplier: RAPID CITY MOBILE HOME PARK · 170 people · 2018
1/1 SYR4
Arsenic
5 µg/L 50%
of the EPA limit 10 µg/L
Main supplier: RAPID CITY MOBILE HOME PARK · 170 people · 2012
1/1 SYR4
TTHM
2.55 µg/L 3.2%
of the EPA limit 80 µg/L
Main supplier: RAPID CITY MOBILE HOME PARK · 170 people · 2018
1/1 SYR4
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
Main supplier: RAPID CITY MOBILE HOME PARK · 170 people · 2024
1/1 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 81413

SupplierStatePopulation served
RAPID CITY MOBILE HOME PARK SD 170

Frequently asked questions about ZIP 81413 tap water

Is the tap water in ZIP 81413 safe to drink?

EPA testing detected 8 contaminants across the water suppliers serving ZIP 81413. 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 81413?

1 public water supplier report EPA drinking-water monitoring for ZIP 81413. Each is listed above with its population served.

What contaminants are in ZIP 81413's water?

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