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Tap water quality report

Black Hawk Water User District

EPA monitoring tested this supplier for 37 contaminants and detected 5. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

37
contaminants tested
5
detected
4,500
people served
11
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
Ground water
Ownership
Local government
Counties served
Meade

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.

11
health-based violations
117
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2017-02-01
TT Health-based Resolved 2017-02-01
MCL Health-based Resolved 2015-07-01 → 2015-07-31
MCL Health-based Resolved 2015-07-01 → 2015-07-31
MCL Health-based Resolved 2015-07-01 → 2015-07-31
MCL Health-based Resolved 2012-02-01 → 2012-02-29
MCL Health-based Resolved 2012-02-01 → 2012-02-29
MCL Health-based Resolved 2012-02-01 → 2012-02-29
MCL Health-based Resolved 2005-08-01 → 2005-08-31
MCL Health-based Resolved 2005-08-01 → 2005-08-31

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
317.65 µg/L 24%
of the EPA limit 1300 µg/L
worst single sample: 550 µg/L
40/40 SYR4 2014–2017
Lead
3.905 µg/L 26%
of the EPA limit 15 µg/L
worst single sample: 4.1 µg/L
40/40 SYR4 2014–2017
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2023
Nitrate
823 µg/L 8.2%
of the EPA limit 10000 µg/L
 8/8 SYR4 2017–2018
TTHM
3.32 µg/L 4.1%
of the EPA limit 80 µg/L
worst single sample: 3.44 µg/L
6/8 SYR4 2013–2019
32 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaTotal Haloacetic Acids (HAA5)Lithium

Utility contact

Contact
KEN LEBON
Phone
6057875777
Email
[email protected]

Frequently asked questions about Black Hawk Water User District

Is Black Hawk Water User District tap water safe to drink?

EPA monitoring detected 5 contaminants in Black Hawk Water User District'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 Hawk Water User District's water?

EPA monitoring detected Copper, Lead, Lead, Nitrate, TTHM. The full list with the level and data source for each is above.

How many people does Black Hawk Water User District serve?

Black Hawk Water User District reports serving 4,500 people in South Dakota, per its EPA record.

Has Black Hawk Water User District had any water quality violations?

The EPA has 117 violations on file for Black Hawk Water User District, of which 11 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.