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Tap water quality report

Black Hills Water Distribution, Llc

EPA monitoring tested this supplier for 17 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

17
contaminants tested
7
detected
135
people served
0
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
Ground water
Ownership
Private
Counties served
Butte

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
234
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 1998-01-01 → 2000-12-31
MR Monitoring Resolved 1998-01-01 → 2000-12-31
MR Monitoring Resolved 1998-01-01 → 2000-12-31
MR Monitoring Resolved 1998-01-01 → 2000-12-31
MR Monitoring Resolved 1998-01-01 → 2000-12-31
MR Monitoring Resolved 1998-01-01 → 2000-12-31
MR Monitoring Resolved 1998-01-01 → 2000-12-31
MR Monitoring Resolved 1998-01-01 → 2000-12-31
MR Monitoring Resolved 1998-01-01 → 2000-12-31
MR Monitoring Resolved 1998-01-01 → 2000-12-31

Other contaminants detected

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
117 µg/L 1.2%
of the EPA limit 10000 µg/L
 8/8 SYR4 2017–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 2/2 LCR 2025
Barium
85 µg/L 4.3%
of the EPA limit 2000 µg/L
 1/1 SYR4 2013
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
 1/1 SYR4 2013
Fluoride
300 µg/L 7.5%
of the EPA limit 4000 µg/L
 1/1 SYR4 2013
Gross Alpha, Excl. Radon And U
5.5 pCi/L 37%
of the EPA limit 15 pCi/L
 1/1 SYR4 2016
Mercury
0.2000 µg/L 10%
of the EPA limit 2 µg/L
 1/1 SYR4 2013
10 contaminants tested, none detected
Antimony, TotalArsenicBeryllium, TotalCadmiumCombined Radium (-226 And -228)Combined UraniumGross Beta Particle ActivityNitriteSeleniumThallium, Total

Utility contact

Contact
TAMMIE BROWN
Email
blackhillswater@hotmail.com; blouder1@

Frequently asked questions about Black Hills Water Distribution, Llc

Is Black Hills Water Distribution, Llc tap water safe to drink?

EPA monitoring detected 7 contaminants in Black Hills Water Distribution, Llc's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Black Hills Water Distribution, Llc's water?

EPA monitoring detected Nitrate, Lead, Barium, Chromium, Fluoride, and others. The full list with the level and data source for each is above.

How many people does Black Hills Water Distribution, Llc serve?

Black Hills Water Distribution, Llc reports serving 135 people in South Dakota, per its EPA record.

Has Black Hills Water Distribution, Llc had any water quality violations?

The EPA has 234 violations on file for Black Hills Water Distribution, Llc, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

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.