BRITTON, SD · Marshall County

SUNSET COLONY Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace South Dakota’s official records. Always confirm current status with South Dakota before making decisions based on this information.

System facts

System ID (PWSID): SD4602025
System type: Community Water System
Population served: 140
Service connections: 24
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2012 – June 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2012 – March 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2011 – December 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2011 – September 30, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2010 – September 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2007 – September 30, 2007
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 10, 2007 – April 23, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2007 – March 31, 2007
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
October 1, 2005 – October 31, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2005 – October 31, 2005
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1996 – October 9, 1996
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 1993 – December 31, 1995
Resolved
Monitoring, Regular
—
Nickel
March 28, 1991 – March 27, 1994
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 10, 2007 – April 23, 2007	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2005 – October 31, 2005	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2005 – October 31, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 1996 – October 9, 1996	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 1995 – December 31, 1995	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 1993 – December 31, 1995	Monitoring, Regular	2,4,5-TP	—	Resolved
March 28, 1991 – March 27, 1994	Monitoring, Regular	Nickel	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

January 11, 2013State Compliance achieved1 linked violation
January 11, 2013State Compliance achieved2 linked violations
January 11, 2013State Compliance achieved2 linked violations
January 11, 2013State Compliance achieved1 linked violation
January 11, 2013State Compliance achieved1 linked violation
January 11, 2013State Compliance achieved3 linked violations
January 11, 2013State Compliance achieved7 linked violations
January 11, 2013State Compliance achieved2 linked violations
January 11, 2013State Compliance achieved5 linked violations
January 11, 2013State Compliance achieved2 linked violations
January 11, 2013State Compliance achieved2 linked violations
September 12, 2012State Public Notification requested7 linked violations
July 12, 2012State Public Notification received3 linked violations
October 31, 2011State Public Notification received4 linked violations
August 23, 2011State Public Notification requested2 linked violations
March 2, 2011State Public Notification received1 linked violation
September 10, 2009State Public Notification requested3 linked violations
May 27, 2009State Public Notification received4 linked violations
March 27, 2009State Public Notification received3 linked violations
December 9, 2008State Public Notification received3 linked violations
December 4, 2008State Public Notification requested2 linked violations
September 24, 2008State Public Notification received2 linked violations
April 17, 2008State Public Notification received1 linked violation
April 8, 2008State Public Notification requested1 linked violation
March 5, 2008State Public Notification received1 linked violation
January 4, 2008State Public Notification received1 linked violation
December 27, 2007State Public Notification requested1 linked violation
December 21, 2007State Public Notification received1 linked violation
September 28, 2007State Public Notification received1 linked violation
September 18, 2007State Public Notification requested1 linked violation
September 7, 2007State Administrative/Compliance Order without penalty issued6 linked violations
September 7, 2007State Administrative/Compliance Order without penalty issued1 linked violation
September 7, 2007State Administrative/Compliance Order without penalty issued1 linked violation
September 7, 2007State Administrative/Compliance Order without penalty issued1 linked violation
September 7, 2007State Administrative/Compliance Order without penalty issued2 linked violations
September 7, 2007State Administrative/Compliance Order without penalty issued1 linked violation
September 7, 2007State Administrative/Compliance Order without penalty issued1 linked violation
September 7, 2007State Administrative/Compliance Order without penalty issued3 linked violations
September 7, 2007State Administrative/Compliance Order without penalty issued2 linked violations
September 7, 2007State Administrative/Compliance Order without penalty issued11 linked violations
September 7, 2007State Administrative/Compliance Order without penalty issued22 linked violations
September 7, 2007State Administrative/Compliance Order without penalty issued2 linked violations
July 18, 2007State Public Notification received2 linked violations
December 6, 2006State Public Notification received3 linked violations
November 9, 2005State Compliance achieved3 linked violations
October 27, 2005State Public Notification received4 linked violations
April 18, 2002State Public Notification received4 linked violations
January 1, 2001State Compliance achieved1 linked violation
January 1, 2001State Compliance achieved1 linked violation
October 5, 2000State Compliance achieved3 linked violations
March 13, 2000State Public Notification requested2 linked violations
May 12, 1998State Public Notification requested5 linked violations
March 25, 1998State Compliance achieved114 linked violations
October 17, 1997State Public Notification received4 linked violations
March 28, 1996State Public Notification received6 linked violations
March 14, 1996State Compliance achieved24 linked violations
March 1, 1996State Public Notification received23 linked violations
February 14, 1996State Public Notification requested66 linked violations
July 14, 1994State Public Notification received30 linked violations
November 10, 1992State Public Notification issued44 linked violations

Contact

SUNSET COLONY

6054482980

BRITTON, SD 57430