Public water system record
Sunset Ranch
Serves an area of Pennington County, SD that includes Rapid City · 263 people served
Federal records show no health-based violations and no monitoring or reporting issues for Sunset Ranch in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Sunset Ranch draws water from 1 well.
- Most recent formal enforcement: compliance order (no penalty) by South Dakota, May 2012.
- Record on file since 2011, with 23 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 93 service lines.
Check whether Sunset Ranch serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016, and no monitoring or reporting violations either.
Full record since 2011
EPA's records for Sunset Ranch go back to 2011. Before October 19, 2016 they list 23 health-based violations (23 resolved) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2010 to October 18, 2016 | 23 | 0 |
Most recent health-based violation before October 19, 2016: Gross Alpha, Excl. Radon and U, began January 2014, Resolved.
Show all 23 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Jan 1, 2014 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
Jan 1, 2014 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
Oct 1, 2013 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Oct 1, 2013 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
Jul 1, 2013 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
Jul 1, 2013 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Apr 1, 2013 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
Apr 1, 2013 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jan 1, 2013 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
Jan 1, 2013 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
Oct 1, 2012 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Oct 1, 2012 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
Jul 1, 2012 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Jul 1, 2012 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
|
Apr 1, 2012 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 25 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
|
Apr 1, 2012 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
Jan 1, 2012 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 27 pCi/L, federal limit 15 pCi/L (1.8 times the limit)
|
Jan 1, 2012 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Oct 1, 2011 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 25 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
|
Oct 1, 2011 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
Jul 1, 2011 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Jul 1, 2011 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
Apr 1, 2011 | Resolved |
Enforcement actions
South Dakota regulators took 1 formal enforcement action against Sunset Ranch in 2012, filed as 23 records in EPA's data. The most recent was a compliance order (no penalty) in May 2012.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 31, 2012 | South Dakota | Compliance order (no penalty) | 23 violations (23 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228) |
Where the water comes from
Sunset Ranch draws water from 1 well.
Annual water quality report
Sunset Ranch must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Sunset Ranch for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by South Dakota.
Certified drinking water labs by state EPA guidance for private wells