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Tap water quality report

Lakeside Water Users District

EPA monitoring tested this supplier for 21 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

21
contaminants tested
7
detected
51
people served
24
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
Ground water
Ownership
Local government
Counties served
Pennington

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.

24
health-based violations
384
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2018-02-01
TT Health-based Resolved 2018-02-01
TT Health-based Resolved 2014-02-01
TT Health-based Resolved 2014-02-01
TT Health-based Resolved 2010-02-01
TT Health-based Resolved 2010-02-01
TT Health-based Resolved 2005-01-01
TT Health-based Resolved 2005-01-01
MCL Health-based Resolved 2003-10-01 → 2003-10-31
MCL Health-based Resolved 2003-10-01 → 2003-10-31

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
58.5 µg/L 4.5%
of the EPA limit 1300 µg/L
worst single sample: 62 µg/L
15/15 SYR4 2013–2019
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
 15/15 SYR4 2013–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2025
Barium
22 µg/L 1.1%
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
1000 µg/L 25%
of the EPA limit 4000 µg/L
 1/1 SYR4 2013
Gross Alpha, Excl. Radon And U
2.19 pCi/L 15%
of the EPA limit 15 pCi/L
 1/1 SYR4 2019
14 contaminants tested, none detected
Antimony, TotalArsenicBeryllium, TotalCadmiumCombined Radium (-226 And -228)Combined UraniumGross Beta Particle ActivityMercuryNitrateNitriteSeleniumTTHMThallium, TotalTotal Haloacetic Acids (HAA5)

Utility contact

Contact
CHARLES KARP
Email
[email protected]

Frequently asked questions about Lakeside Water Users District

Is Lakeside Water Users District tap water safe to drink?

EPA monitoring detected 7 contaminants in Lakeside Water Users 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 Lakeside Water Users District's water?

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

How many people does Lakeside Water Users District serve?

Lakeside Water Users District reports serving 51 people in South Dakota, per its EPA record.

Has Lakeside Water Users District had any water quality violations?

The EPA has 384 violations on file for Lakeside Water Users District, of which 24 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.