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Tap water quality report

Flandreau School

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
375
people served
0
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
GWP
Ownership
Federal government

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
33
violations on file
2
still open
ViolationTypeStatusPeriod
MR Monitoring Unaddressed 2025-10-01
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Resolved 2024-12-30
MR Monitoring Unaddressed 2023-10-01
MON Monitoring Resolved 2023-07-01 → 2023-07-31
MON Monitoring Resolved 2022-09-01 → 2022-09-30
MR Monitoring Archived 2022-01-01 → 2024-12-31
MR Monitoring Archived 2022-01-01 → 2024-12-31
MR Monitoring Resolved 2020-12-30

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
8.26 µg/L 55%
of the EPA limit 15 µg/L
worst single sample: 30.1 µg/L
17/25 SYR4 2016–2017
Copper
70 µg/L 5.4%
of the EPA limit 1300 µg/L
 16/25 SYR4 2016–2017
Lead
0.0077 mg/L 51%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2025
TTHM
41.94 µg/L 52%
of the EPA limit 80 µg/L
worst single sample: 42 µg/L
4/4 SYR4 2014–2017
Total Haloacetic Acids (HAA5)
11.575 µg/L 19%
of the EPA limit 60 µg/L
worst single sample: 11.8 µg/L
4/4 SYR4 2014–2017

Utility contact

Contact
GOURNEAU, JEREMY
Phone
605-997-3773
Email
[email protected]

Frequently asked questions about Flandreau School

Is Flandreau School tap water safe to drink?

EPA monitoring detected 5 contaminants in Flandreau School'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 Flandreau School'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 Flandreau School serve?

Flandreau School reports serving 375 people in South Dakota, per its EPA record.

Has Flandreau School had any water quality violations?

The EPA has 33 violations on file for Flandreau School, of which 0 are health-based (a contaminant limit or required treatment was breached) and 2 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.