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Tap water quality report

Tripp County Water User District

EPA monitoring tested this supplier for 50 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

50
contaminants tested
11
detected
4,860
people served
3
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
Ground water
Ownership
Local government
Counties served
Gregory, Lyman, Mellette, Todd, Tripp

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.

3
health-based violations
144
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2012-06-01 → 2012-06-30
MCL Health-based Resolved 2012-06-01 → 2012-06-30
MCL Health-based Resolved 2012-06-01 → 2012-06-30
MR Monitoring Resolved 2015-01-01 → 2015-12-31
MR Monitoring Resolved 2015-01-01 → 2015-12-31
MR Monitoring Resolved 2015-01-01 → 2015-12-31
MR Monitoring Resolved 2015-01-01 → 2015-12-31
MR Monitoring Resolved 2015-01-01 → 2015-12-31
MR Monitoring Resolved 2015-01-01 → 2015-12-31
MR Monitoring Resolved 2015-01-01 → 2015-12-31

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
330 µg/L 25%
of the EPA limit 1300 µg/L
worst single sample: 360 µg/L
60/60 SYR4 2012–2018
Lead
4.8 µg/L 32%
of the EPA limit 15 µg/L
worst single sample: 10.5 µg/L
60/60 SYR4 2012–2018
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2024
Nitrate
3500 µg/L 35%
of the EPA limit 10000 µg/L
 12/12 SYR4 2017–2019
TTHM
7.1815 µg/L 9%
of the EPA limit 80 µg/L
worst single sample: 8.69 µg/L
8/9 SYR4 2012–2019
Arsenic
4 µg/L 40%
of the EPA limit 10 µg/L
 2/2 SYR4 2012
Barium
77.255 µg/L 3.9%
of the EPA limit 2000 µg/L
worst single sample: 77.8 µg/L
2/2 SYR4 2012
Chromium
3.18 µg/L 3.2%
of the EPA limit 100 µg/L
worst single sample: 3.2 µg/L
2/2 SYR4 2012
Gross Alpha, Excl. Radon And U
1.98 pCi/L 13%
of the EPA limit 15 pCi/L
worst single sample: 2 pCi/L
2/2 SYR4 2012
Selenium
1.285 µg/L 2.6%
of the EPA limit 50 µg/L
worst single sample: 1.3 µg/L
2/2 SYR4 2012
Total Haloacetic Acids (HAA5)
1.33 µg/L 2.2%
of the EPA limit 60 µg/L
 1/9 SYR4 2012–2019
39 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalBeryllium, TotalCadmiumCombined Radium (-226 And -228)Combined UraniumGross Beta Particle ActivityHfpo-DaMercuryNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaThallium, TotalLithium

Utility contact

Contact
JASON OREL
Phone
6058422755
Email
[email protected]

Frequently asked questions about Tripp County Water User District

Is Tripp County Water User District tap water safe to drink?

EPA monitoring detected 11 contaminants in Tripp County Water User 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 Tripp County Water User District's water?

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

How many people does Tripp County Water User District serve?

Tripp County Water User District reports serving 4,860 people in South Dakota, per its EPA record.

Has Tripp County Water User District had any water quality violations?

The EPA has 144 violations on file for Tripp County Water User District, of which 3 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.