Tap WaterIndex

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Tap water quality report

Deadwood

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

5
contaminants tested
5
detected
1,156
people served
0
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
SWP
Ownership
Local government
Counties served
Lawrence

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
14
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 1993-07-01 → 1994-06-14
MR Monitoring Resolved 1993-07-01 → 1994-06-14
MR Monitoring Resolved 1993-07-01 → 1994-06-14
Other Monitoring Archived 1990-12-02 → 1991-01-01
MR Monitoring Archived 1979-07-01 → 1980-06-30
MR Monitoring Archived 1979-07-01 → 1980-06-30
MR Monitoring Archived 1979-07-01 → 1980-06-30
MR Monitoring Archived 1979-07-01 → 1980-06-30
MR Monitoring Archived 1979-07-01 → 1980-06-30
MR Monitoring Archived 1979-07-01 → 1980-06-30

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
Copper
160 µg/L 12%
of the EPA limit 1300 µg/L
 20/20 SYR4 2014–2017
Lead
4.1 µg/L 27%
of the EPA limit 15 µg/L
 20/20 SYR4 2014–2017
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2023
TTHM
30 µg/L 38%
of the EPA limit 80 µg/L
 7/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
9.14 µg/L 15%
of the EPA limit 60 µg/L
 7/7 SYR4 2013–2019

Utility contact

Contact
STEVEN MURPHY
Phone
6055783082
Email
steven@cityofdeadwood.com

Frequently asked questions about Deadwood

Is Deadwood tap water safe to drink?

EPA monitoring detected 5 contaminants in Deadwood'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 Deadwood's water?

EPA monitoring detected Copper, Lead, Lead, TTHM, Total Haloacetic Acids (HAA5). The full list with the level and data source for each is above.

How many people does Deadwood serve?

Deadwood reports serving 1,156 people in South Dakota, per its EPA record.

Has Deadwood had any water quality violations?

The EPA has 14 violations on file for Deadwood, 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.