Public water system record

Shirt Tail Gulch Development

Serves an area of Lawrence County, SD · 65 people served

Federal records show 16 health-based violations and 5 monitoring/reporting issues for Shirt Tail Gulch Development in the last ten years. The most serious issue in this window was a resolved Combined Radium (-226 and -228) violation.

  • SD4602232
  • BLACK HAWK
  • SD
  • 65 served

System profile

Source water Groundwater
ZIP 57718
EPA system ID SD4602232

Verify this system on EPA ECHO →

Health-based violations, last 10 years
16
Resolved
16
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
5

Key facts

  • Shirt Tail Gulch Development draws water from 1 well.
  • Highest measured level in the last 10 years: Gross Alpha, Excl. Radon and U, 30 pCi/L, federal limit 15 pCi/L (2 times the limit), 2018.
  • Most recent formal enforcement: compliance order (no penalty) by South Dakota, June 2013.
  • Record on file since 2004, with 102 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 28 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
340 Jul 1, 2018 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
340 Jul 1, 2018 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 30 pCi/L, federal limit 15 pCi/L (2 times the limit)
340 Apr 1, 2018 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
340 Apr 1, 2018 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
340 Jan 1, 2018 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 27 pCi/L, federal limit 15 pCi/L (1.8 times the limit)
340 Jan 1, 2018 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
340 Oct 1, 2017 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 26 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
340 Oct 1, 2017 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
340 Jul 1, 2017 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 29 pCi/L, federal limit 15 pCi/L (1.9 times the limit)
340 Jul 1, 2017 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10 pCi/L, federal limit 5 pCi/L (2 times the limit)
340 Apr 1, 2017 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 27 pCi/L, federal limit 15 pCi/L (1.8 times the limit)
340 Apr 1, 2017 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10 pCi/L, federal limit 5 pCi/L (2 times the limit)
340 Jan 1, 2017 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 27 pCi/L, federal limit 15 pCi/L (1.8 times the limit)
340 Jan 1, 2017 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
340 Oct 1, 2016 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
340 Oct 1, 2016 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Public Notice
OTHER
Oct 1, 2018 Resolved
Public Notice
OTHER
Oct 1, 2018 Resolved
Combined Uranium
Monitoring and reporting
Jan 1, 2017 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jan 1, 2017 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jan 1, 2017 Resolved

Full record since 2004

EPA's records for Shirt Tail Gulch Development go back to 2004. Before October 19, 2016 they list 102 health-based violations (102 resolved) and 60 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 51 60
2010 to October 18, 2016 51 0
October 19, 2016 to 2019 14 5

Most recent health-based violation before October 19, 2016: Combined Radium (-226 and -228), began October 2016, Resolved.

Show all 102 health-based violations before October 19, 2016
Contaminant Start date Status
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
Oct 1, 2016 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
Oct 1, 2016 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10 pCi/L, federal limit 5 pCi/L (2 times the limit)
Jan 1, 2016 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
Jan 1, 2016 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
Oct 1, 2015 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10 pCi/L, federal limit 5 pCi/L (2 times the limit)
Oct 1, 2015 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10 pCi/L, federal limit 5 pCi/L (2 times the limit)
Jul 1, 2015 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
Jul 1, 2015 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
Apr 1, 2015 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10 pCi/L, federal limit 5 pCi/L (2 times the limit)
Apr 1, 2015 Resolved
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
Feb 1, 2015 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
Jan 1, 2015 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
Jan 1, 2015 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
Oct 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, 2014 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, 2014 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, 2014 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, 2014 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
Apr 1, 2014 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
Apr 1, 2014 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
Jan 1, 2014 Resolved
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 10 pCi/L, federal limit 5 pCi/L (2 times the limit)
Oct 1, 2013 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
Oct 1, 2013 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10 pCi/L, federal limit 5 pCi/L (2 times the limit)
Jul 1, 2013 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 14 pCi/L, federal limit 5 pCi/L (2.8 times the limit)
Apr 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)
Jan 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)
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)
Jul 1, 2012 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, 2012 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, 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
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
Jul 1, 2011 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, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
Apr 1, 2011 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, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.016 mg/L, federal limit 0.01 mg/L (1.6 times the limit)
Jan 1, 2011 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
Jan 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)
Jan 1, 2011 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.019 mg/L, federal limit 0.01 mg/L (1.9 times the limit)
Oct 1, 2010 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
Oct 1, 2010 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
Oct 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.017 mg/L, federal limit 0.01 mg/L (1.7 times the limit)
Jul 1, 2010 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
Jul 1, 2010 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 24 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
Jul 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.017 mg/L, federal limit 0.01 mg/L (1.7 times the limit)
Apr 1, 2010 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
Apr 1, 2010 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 24 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
Apr 1, 2010 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.017 mg/L, federal limit 0.01 mg/L (1.7 times the limit)
Jan 1, 2010 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 13 pCi/L, federal limit 5 pCi/L (2.6 times the limit)
Jan 1, 2010 Resolved

52 older violations are not listed here. EPA ECHO has the complete list.

Enforcement actions

South Dakota regulators took 4 formal enforcement actions against Shirt Tail Gulch Development between 2005 and 2013, filed as 124 records in EPA's data. The most recent was a compliance order (no penalty) in June 2013.

Date By Action Violations covered
Jun 20, 2013 South Dakota Compliance order (no penalty) 40 violations (40 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228)
Aug 26, 2009 South Dakota Compliance order (no penalty) 21 violations (21 health-based): Arsenic
Aug 24, 2005 South Dakota Compliance order (no penalty) 2 violations (2 health-based): Combined Radium (-226 and -228)
Aug 24, 2005 South Dakota Compliance order with a penalty 61 violations (49 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U, 2,4-D, Picloram, Pentachlorophenol

What the violations mean

Combined Radium (-226 and -228)

8 incidents

Test results for Combined Radium (-226 and -228) were above the federal limit (a maximum contaminant level violation).

The utility had to notify customers about each of these violations.

Gross Alpha, Excl. Radon and U

8 incidents

Test results for Gross Alpha, Excl. Radon and U were above the federal limit (a maximum contaminant level violation).

The utility had to notify customers about each of these violations.

Where the water comes from

Shirt Tail Gulch Development draws water from 1 well.

Annual water quality report

Shirt Tail Gulch Development 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 Shirt Tail Gulch Development 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.