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Tap water quality report

Thrall Mtn. Property Owners Associat

EPA monitoring tested this supplier for 21 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

21
contaminants tested
8
detected
70
people served
6
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.

6
health-based violations
105
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1996-06-01 → 1996-06-30
MCL Health-based Resolved 1996-06-01 → 1996-06-30
MCL Health-based Resolved 1996-06-01 → 1996-06-30
MCL Health-based Resolved 1994-10-01 → 1994-10-31
MCL Health-based Resolved 1994-10-01 → 1994-10-31
MCL Health-based Resolved 1994-10-01 → 1994-10-31
Other Monitoring Resolved 2004-07-01
Other Monitoring Resolved 2004-07-01
Other Monitoring Resolved 2000-07-01 → 2000-07-21
Other Monitoring Resolved 2000-07-01 → 2000-07-21

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
201 µg/L 15%
of the EPA limit 1300 µg/L
 15/15 SYR4 2012–2018
Lead
6 µg/L 40%
of the EPA limit 15 µg/L
 15/15 SYR4 2012–2018
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2024
Nitrate
770 µg/L 7.7%
of the EPA limit 10000 µg/L
 6/6 SYR4 2017–2019
TTHM
5.2 µg/L 6.5%
of the EPA limit 80 µg/L
 4/4 SYR4 2012–2018
Barium
26 µg/L 1.3%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Fluoride
200 µg/L 5%
of the EPA limit 4000 µg/L
 1/1 SYR4 2012
Total Haloacetic Acids (HAA5)
1.37 µg/L 2.3%
of the EPA limit 60 µg/L
 1/4 SYR4 2012–2018
13 contaminants tested, none detected
Antimony, TotalArsenicBeryllium, TotalCadmiumChromiumCombined Radium (-226 And -228)Combined UraniumGross Alpha, Excl. Radon And UGross Beta Particle ActivityMercuryNitriteSeleniumThallium, Total

Utility contact

Contact
DYLAN STRIEBEL
Phone
6057864366
Email
consultclearwater@gmail.com

Frequently asked questions about Thrall Mtn. Property Owners Associat

Is Thrall Mtn. Property Owners Associat tap water safe to drink?

EPA monitoring detected 8 contaminants in Thrall Mtn. Property Owners Associat'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 Thrall Mtn. Property Owners Associat'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 Thrall Mtn. Property Owners Associat serve?

Thrall Mtn. Property Owners Associat reports serving 70 people in South Dakota, per its EPA record.

Has Thrall Mtn. Property Owners Associat had any water quality violations?

The EPA has 105 violations on file for Thrall Mtn. Property Owners Associat, 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.