Tap WaterIndex

← South Dakota

Tap water quality report

Colome

EPA monitoring tested this supplier for 11 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

11
contaminants tested
7
detected
323
people served
6
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
Ground water
Ownership
Local government
Counties served
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.

6
health-based violations
70
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2022-03-15
TT Health-based Resolved 2022-03-15
TT Health-based Resolved 2019-06-10
TT Health-based Resolved 2019-06-10
TT Health-based Resolved 2010-05-31
TT Health-based Resolved 2010-05-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2014-01-01 → 2014-12-31
MR Monitoring Resolved 2014-01-01 → 2014-12-31

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
Lead
0.0150 mg/L 100%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2023
Copper
211 µg/L 16%
of the EPA limit 1300 µg/L
worst single sample: 220 µg/L
10/10 SYR4 2014–2017
Lead
6.005 µg/L 40%
of the EPA limit 15 µg/L
worst single sample: 8.3 µg/L
10/10 SYR4 2014–2017
Nitrate
2400 µg/L 24%
of the EPA limit 10000 µg/L
 6/6 SYR4 2017–2019
TTHM
10.357 µg/L 13%
of the EPA limit 80 µg/L
worst single sample: 10.7 µg/L
3/3 SYR4 2013–2017
Total Haloacetic Acids (HAA5)
3.8655 µg/L 6.4%
of the EPA limit 60 µg/L
worst single sample: 3.99 µg/L
2/3 SYR4 2013–2017
Gross Alpha, Excl. Radon And U
2.1 pCi/L 14%
of the EPA limit 15 pCi/L
 1/1 SYR4 2012
4 contaminants tested, none detected
Combined Radium (-226 And -228)Combined UraniumGross Beta Particle ActivityNitrite

Utility contact

Contact
CASEY HARTER
Phone
6058420853
Email
[email protected]

Frequently asked questions about Colome

Is Colome tap water safe to drink?

EPA monitoring detected 7 contaminants in Colome'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 Colome's water?

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

How many people does Colome serve?

Colome reports serving 323 people in South Dakota, per its EPA record.

Has Colome had any water quality violations?

The EPA has 70 violations on file for Colome, of which 6 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.