Tap WaterIndex

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Tap water quality report

Lesterville

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
115
people served
7
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
SWP
Ownership
Local government
Counties served
Yankton

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.

7
health-based violations
99
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2014-02-01
TT Health-based Resolved 2014-02-01
TT Health-based Resolved 2013-02-01
TT Health-based Resolved 2013-02-01
MCL Health-based Resolved 2003-07-01 → 2003-07-31
MCL Health-based Resolved 2003-07-01 → 2003-07-31
MCL Health-based Resolved 2003-07-01 → 2003-07-31
MON Monitoring Resolved 2025-10-01 → 2025-10-31
MON Monitoring Resolved 2025-10-01 → 2025-10-31
MON Monitoring Resolved 2024-11-01 → 2024-11-30

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 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
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2023
Copper
68.5 µg/L 5.3%
of the EPA limit 1300 µg/L
worst single sample: 100 µg/L
10/10 SYR4 2014–2017
Lead
3.32 µg/L 22%
of the EPA limit 15 µg/L
worst single sample: 4.4 µg/L
10/10 SYR4 2014–2017
TTHM
51.01 µg/L 64%
of the EPA limit 80 µg/L
worst single sample: 51.4 µg/L
7/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
30.95 µg/L 52%
of the EPA limit 60 µg/L
worst single sample: 32.6 µg/L
7/7 SYR4 2013–2019

Utility contact

Contact
PAUL SCHERSCHLIGT
Phone
6053647793
Email
[email protected]

Frequently asked questions about Lesterville

Is Lesterville tap water safe to drink?

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

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

How many people does Lesterville serve?

Lesterville reports serving 115 people in South Dakota, per its EPA record.

Has Lesterville had any water quality violations?

The EPA has 99 violations on file for Lesterville, of which 7 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.