Tap WaterIndex

← South Dakota

Tap water quality report

Cedar Gulch 2

EPA monitoring tested this supplier for 21 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

21
contaminants tested
7
detected
40
people served
269
health-based violations
South Dakota rankingsLead in South DakotaPFAS in South Dakota
Water source
Ground water
Ownership
Private
Counties served
Pennington

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.

269
health-based violations
414
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-07-01 → 2018-09-30
MCL Health-based Resolved 2018-04-01 → 2018-06-30

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
210 µg/L 16%
of the EPA limit 1300 µg/L
 35/35 SYR4 2012–2019
Lead
8 µg/L 53%
of the EPA limit 15 µg/L
 35/35 SYR4 2012–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
Nitrate
5310 µg/L 53%
of the EPA limit 10000 µg/L
 2/2 SYR4 2012
Barium
33 µg/L 1.7%
of the EPA limit 2000 µg/L
 1/1 SYR4 2018
Fluoride
500 µg/L 13%
of the EPA limit 4000 µg/L
 1/1 SYR4 2018
Gross Alpha, Excl. Radon And U
0.2060 pCi/L 1.4%
of the EPA limit 15 pCi/L
 1/1 SYR4 2019
14 contaminants tested, none detected
Antimony, TotalArsenicBeryllium, TotalCadmiumChromiumCombined Radium (-226 And -228)Combined UraniumGross Beta Particle ActivityMercuryNitriteSeleniumTTHMThallium, TotalTotal Haloacetic Acids (HAA5)

Utility contact

Contact
AL SAGE
Phone
6053917483
Email
sagewaterworks100@gmail.com

Frequently asked questions about Cedar Gulch 2

Is Cedar Gulch 2 tap water safe to drink?

EPA monitoring detected 7 contaminants in Cedar Gulch 2'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 Cedar Gulch 2's water?

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

How many people does Cedar Gulch 2 serve?

Cedar Gulch 2 reports serving 40 people in South Dakota, per its EPA record.

Has Cedar Gulch 2 had any water quality violations?

The EPA has 414 violations on file for Cedar Gulch 2, of which 269 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.