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Public water system record

Southfork Estates

Serves an area of Campbell County, WY that includes Gillette · 144 people served

Federal records show 2 health-based violations and no monitoring/reporting issues for Southfork Estates in the last ten years. The most serious issue in this window was a resolved Combined Radium (-226 and -228) violation.

  • WY5600832
  • GILLETTE
  • WY
  • 144 served

System profile

Source water Groundwater
ZIP 82717
EPA system ID WY5600832

Verify this system on EPA ECHO →

Health-based violations, last 10 years
2
Resolved
1
Unresolved
0
Archived by EPA
1
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Southfork Estates draws water from 1 well.
  • Highest measured level in the last 10 years: Combined Radium (-226 and -228), 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit), 2017.
  • Most recent formal enforcement: compliance order (no penalty) by EPA, August 2013.
  • Record on file since 1983, with 7 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 19 unknown out of 47 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 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
 340 Apr 1, 2017 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
 340 Oct 1, 2016 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No

Full record since 1983

EPA's records for Southfork Estates go back to 1983. Before October 19, 2016 they list 7 health-based violations (7 archived by EPA without a recorded fix) and 13 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 8
2000s 0 1
2010 to October 18, 2016 7 4
October 19, 2016 to 2019 1 0

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

Show all 7 health-based violations before October 19, 2016
Contaminant Start date Status
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
 Oct 1, 2016 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
 Jul 1, 2016 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.85 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
 Jul 1, 2013 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.05 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
 Apr 1, 2013 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.25 pCi/L, federal limit 5 pCi/L (1.1 times the limit)
 Jan 1, 2013 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
 Oct 1, 2012 Archived
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.2 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
 Jan 1, 2012 Archived

Enforcement actions

EPA took 1 formal enforcement action against Southfork Estates in 2013. The most recent was a compliance order (no penalty) in August 2013.

Date By Action Violations covered
Aug 27, 2013 EPA Compliance order (no penalty) 12 violations (8 health-based): Gross Alpha, Excl. Radon and U, Combined Uranium, Combined Radium (-226 and -228), Radium-228, Radium-226

What the violations mean

Combined Radium (-226 and -228)

2 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.

Where the water comes from

Southfork Estates draws water from 1 well. It also buys water from City of Gillette.

Buys water from

Annual water quality report

Southfork Estates 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 Southfork Estates 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 EPA Region 8.

Certified drinking water labs by state EPA guidance for private wells