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Tap water quality report

Lincoln County Rural Water

EPA monitoring tested this supplier for 35 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

35
contaminants tested
7
detected
5,965
people served
0
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
GWP
Ownership
Private
Counties served
Lincoln, Minnehaha

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
6
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2024-04-01 → 2024-06-30
MR Monitoring Resolved 2024-04-01 → 2024-06-30
MR Monitoring Resolved 2024-04-01 → 2024-06-30
MR Monitoring Resolved 2001-05-01 → 2001-05-31
MR Monitoring Resolved 2001-05-01 → 2001-05-31
MR Monitoring Resolved 2001-05-01 → 2001-05-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0061 µg/L 1/4 2024

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
198.5 µg/L 15%
of the EPA limit 1300 µg/L
worst single sample: 630 µg/L
122/122 SYR4 2013–2018
Lead
2.7 µg/L 18%
of the EPA limit 15 µg/L
worst single sample: 11.1 µg/L
122/122 SYR4 2013–2018
TTHM
33.11 µg/L 41%
of the EPA limit 80 µg/L
worst single sample: 34.1 µg/L
19/19 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
21.1 µg/L 35%
of the EPA limit 60 µg/L
worst single sample: 22 µg/L
19/19 SYR4 2012–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2024
Lithium
55 µg/L
No EPA limit set
 4/4 UCMR-5 2023
28 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfuna

Utility contact

Contact
ROBIN DYKSTRA
Phone
6057672966
Email
[email protected]

Frequently asked questions about Lincoln County Rural Water

Is Lincoln County Rural Water tap water safe to drink?

EPA monitoring detected 7 contaminants in Lincoln County Rural Water'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 Lincoln County Rural Water's water?

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

How many people does Lincoln County Rural Water serve?

Lincoln County Rural Water reports serving 5,965 people in South Dakota, per its EPA record.

Has Lincoln County Rural Water had any water quality violations?

The EPA has 6 violations on file for Lincoln County Rural Water, 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.