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Tap water quality report

South Lincoln Rural Water

EPA monitoring tested this supplier for 51 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

51
contaminants tested
9
detected
5,250
people served
0
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
Ground water
Ownership
Private
Counties served
Lincoln, Turner, Union

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
64
violations on file
0
still open
ViolationTypeStatusPeriod
MON Monitoring Resolved 2023-10-01 → 2023-10-31
MON Monitoring Resolved 2023-10-01 → 2023-10-31
MON Monitoring Resolved 2023-10-01 → 2023-10-31
MR Monitoring Resolved 2021-10-01 → 2021-12-31
MR Monitoring Resolved 2021-10-01 → 2021-12-31
MR Monitoring Resolved 2021-10-01 → 2021-12-31
MR Monitoring Resolved 2014-01-01 → 2014-03-31
MR Monitoring Resolved 2014-01-01 → 2014-03-31
MR Monitoring Resolved 2014-01-01 → 2014-03-31
MR Monitoring Resolved 2014-01-01 → 2014-03-31

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
1005 µg/L 77%
of the EPA limit 1300 µg/L
worst single sample: 1500 µg/L
60/60 SYR4 2013–2019
Lead
5.41 µg/L 36%
of the EPA limit 15 µg/L
worst single sample: 9.9 µg/L
60/60 SYR4 2013–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
Lithium
105 µg/L
No EPA limit set
 4/4 UCMR-5 2024
TTHM
0.7027 µg/L 0.9%
of the EPA limit 80 µg/L
worst single sample: 0.7100 µg/L
2/8 SYR4 2013–2019
Barium
24.3 µg/L 1.2%
of the EPA limit 2000 µg/L
 1/1 SYR4 2018
Fluoride
1450 µg/L 36%
of the EPA limit 4000 µg/L
 1/1 SYR4 2019
Gross Alpha, Excl. Radon And U
7.4 pCi/L 49%
of the EPA limit 15 pCi/L
 1/1 SYR4 2019
Total Haloacetic Acids (HAA5)
1.29 µg/L 2.2%
of the EPA limit 60 µg/L
 1/8 SYR4 2013–2019
42 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBeryllium, TotalCadmiumChromiumCombined Radium (-226 And -228)Combined UraniumGross Beta Particle ActivityHfpo-DaMercuryNetfosaaNfdhaNmefosaaNitrateNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumThallium, Total

Utility contact

Contact
JOHN STEARNS
Phone
6057779905
Email
[email protected]

Frequently asked questions about South Lincoln Rural Water

Is South Lincoln Rural Water tap water safe to drink?

EPA monitoring detected 9 contaminants in South Lincoln 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 South Lincoln Rural Water's water?

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

How many people does South Lincoln Rural Water serve?

South Lincoln Rural Water reports serving 5,250 people in South Dakota, per its EPA record.

Has South Lincoln Rural Water had any water quality violations?

The EPA has 64 violations on file for South Lincoln 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.