Is Rosebud, SD Tap Water Safe? Quality & Contaminants

What was found in Rosebud'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.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate	2600 µg/L 26% of the EPA limit 10000 µg/L Highest in the city: ST. FRANCIS · 2,450 people · 2019	2/5	SYR4
Nitrate-Nitrite	2560 µg/L 26% of the EPA limit 10000 µg/L Highest in the city: ST. FRANCIS · 2,450 people · 2019	2/5	SYR4
Copper	452.5 µg/L 35% of the EPA limit 1300 µg/L Main supplier: SICANGU MNI WICONI RURAL WATER SYSTEM · 5,610 people · 2018 Highest in the city: 488 µg/L — ST. FRANCIS · 2,450 people · 2017	5/5	SYR4
Fluoride	309.5 µg/L 7.7% of the EPA limit 4000 µg/L Highest in the city: ST. FRANCIS · 2,450 people · 2016	1/5	SYR4
Barium	154.8 µg/L 7.7% of the EPA limit 2000 µg/L Highest in the city: ST. FRANCIS · 2,450 people · 2019	2/5	SYR4
Lead	3.92 µg/L 26% of the EPA limit 15 µg/L Main supplier: SICANGU MNI WICONI RURAL WATER SYSTEM · 5,610 people · 2018 Highest in the city: 84.1 µg/L — ST. FRANCIS · 2,450 people · 2017	5/5	SYR4
Lithium	69.6 µg/L No EPA limit set Main supplier: SICANGU MNI WICONI RURAL WATER SYSTEM · 5,610 people · 2023	1/5	UCMR-5
TTHM	47.2 µg/L 59% of the EPA limit 80 µg/L Main supplier: SICANGU MNI WICONI RURAL WATER SYSTEM · 5,610 people · 2019	5/5	SYR4
Total Haloacetic Acids (HAA5)	32.86 µg/L 55% of the EPA limit 60 µg/L Main supplier: SICANGU MNI WICONI RURAL WATER SYSTEM · 5,610 people · 2019	5/5	SYR4
Cyanide	6 µg/L 3% of the EPA limit 200 µg/L Highest in the city: ST. FRANCIS · 2,450 people · 2018	1/5	SYR4
Gross Alpha, Excl. Radon And U	4.5 pCi/L 30% of the EPA limit 15 pCi/L Highest in the city: ST. FRANCIS · 2,450 people · 2017	2/5	SYR4
Arsenic	4 µg/L 40% of the EPA limit 10 µg/L Highest in the city: ROSEBUD RURAL WATER SYSTEM · 5,500 people · 2019	2/5	SYR4
Combined Uranium	2.533 µg/L 8.4% of the EPA limit 30 µg/L Highest in the city: ST. FRANCIS · 2,450 people · 2013	2/5	SYR4
Selenium	1.588 µg/L 3.2% of the EPA limit 50 µg/L Highest in the city: ST. FRANCIS · 2,450 people · 2019	2/5	SYR4
Combined Radium (-226 And -228)	1.5 pCi/L 30% of the EPA limit 5 pCi/L Highest in the city: ST. FRANCIS · 2,450 people · 2017	1/5	SYR4
Chromium	1.251 µg/L 1.3% of the EPA limit 100 µg/L Highest in the city: ST. FRANCIS · 2,450 people · 2019	2/5	SYR4
Antimony, Total	0.2900 µg/L 4.8% of the EPA limit 6 µg/L Highest in the city: ST. FRANCIS · 2,450 people · 2019	1/5	SYR4
Lead	0.0011 mg/L 7.3% of the EPA limit 0.0150 mg/L Main supplier: SICANGU MNI WICONI RURAL WATER SYSTEM · 5,610 people · 2025 Highest in the city: 0.0045 mg/L — SOUTH IDEAL · 176 people · 2024	5/5	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 Rosebud

Supplier	Population served
SICANGU MNI WICONI RURAL WATER SYSTEM	5,610
ROSEBUD RURAL WATER SYSTEM	5,500
ST. FRANCIS	2,450
SOUTH IDEAL	176
MILK`S CAMP WATER SYSTEM	50

Frequently asked questions about Rosebud tap water

Is Rosebud tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Rosebud. 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 Rosebud?

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

What contaminants are in Rosebud's water?

The contaminants EPA monitoring detected in Rosebud include Nitrate, Nitrate-Nitrite, Copper, Fluoride, Barium. 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.