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Tap water quality report

Dell Rapids, SD

EPA monitoring detected 12 contaminants across the 2 water suppliers serving Dell Rapids. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
17,068
people served
12
contaminants found
South Dakota rankings Lead in South Dakota PFAS in South Dakota

What was found in Dell Rapids's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
2300 µg/L 23%
of the EPA limit 10000 µg/L
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2019
1/2 SYR4
Copper
60 µg/L 4.6%
of the EPA limit 1300 µg/L
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2018
Highest in the city: 80.5 µg/L — DELL RAPIDS · 3,633 people · 2017
2/2 SYR4
TTHM
46.64 µg/L 58%
of the EPA limit 80 µg/L
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2019
2/2 SYR4
Lithium
37.5 µg/L
No EPA limit set
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2024
Highest in the city: 41.4 µg/L — DELL RAPIDS · 3,633 people · 2025
2/2 UCMR-5
Total Haloacetic Acids (HAA5)
23.32 µg/L 39%
of the EPA limit 60 µg/L
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2019
2/2 SYR4
Barium
16.635 µg/L 0.8%
of the EPA limit 2000 µg/L
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2012
1/2 SYR4
Lead
2.675 µg/L 18%
of the EPA limit 15 µg/L
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2018
Highest in the city: 12.055 µg/L — DELL RAPIDS · 3,633 people · 2017
2/2 SYR4
Selenium
1.67 µg/L 3.3%
of the EPA limit 50 µg/L
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2012
1/2 SYR4
Gross Alpha, Excl. Radon And U
1 pCi/L 6.7%
of the EPA limit 15 pCi/L
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2012
1/2 SYR4
Chromium
0.7950 µg/L 0.8%
of the EPA limit 100 µg/L
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2012
1/2 SYR4
Antimony, Total
0.4000 µg/L 6.7%
of the EPA limit 6 µg/L
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2012
1/2 SYR4
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: MINNEHAHA COMMUNITY WATER CORP · 13,435 people · 2024
Highest in the city: 0.0020 mg/L — DELL RAPIDS · 3,633 people · 2023
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. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Dell Rapids

SupplierPopulation served
MINNEHAHA COMMUNITY WATER CORP 13,435
DELL RAPIDS 3,633

Frequently asked questions about Dell Rapids tap water

Is Dell Rapids tap water safe to drink?

EPA testing detected 12 contaminants in the water serving Dell Rapids. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Dell Rapids?

2 public water suppliers report drinking-water monitoring for Dell Rapids, South Dakota to the EPA. Each is listed above with its population served.

What contaminants are in Dell Rapids's water?

The contaminants EPA monitoring detected in Dell Rapids include Nitrate, Copper, TTHM, Lithium, Total Haloacetic Acids (HAA5). The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.