PIEDMONT, SD · Pennington County

CEDAR GULCH 2 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): SD4602295
System type: Community Water System
Population served: 40
Service connections: 16
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2018 – September 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2018 – September 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2018 – June 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2018 – June 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2018 – March 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2018 – March 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2017 – December 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2017 – December 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2017 – June 30, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Simazine
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
Endrin
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
Picloram
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2016 – October 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2016 – December 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2016 – December 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2016 – June 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2016 – March 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2015 – September 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2015 – March 31, 2015
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2014 – October 6, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2014 – December 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Picloram
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Simazine
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
LASSO
January 1, 2014 – March 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2013 – March 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2013 – March 31, 2013
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
November 1, 2010 – November 30, 2010
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2018 – September 30, 2018	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2018 – September 30, 2018	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2017 – June 30, 2017	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2017 – June 30, 2017	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Simazine	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Endrin	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Picloram	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
October 1, 2016 – October 31, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2014 – October 6, 2014	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2014 – December 31, 2014	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Picloram	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Simazine	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	LASSO	—	Resolved
January 1, 2013 – March 31, 2013	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2013 – March 31, 2013	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
November 1, 2010 – November 30, 2010	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

December 31, 2018State Compliance achieved2 linked violations
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved2 linked violations
December 31, 2018State Compliance achieved4 linked violations
December 31, 2018State Compliance achieved2 linked violations
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved4 linked violations
December 31, 2018State Compliance achieved2 linked violations
December 31, 2018State Compliance achieved2 linked violations
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved2 linked violations
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved2 linked violations
December 31, 2018State Compliance achieved2 linked violations
December 31, 2018State Compliance achieved3 linked violations
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved1 linked violation
December 31, 2018State Compliance achieved2 linked violations
December 31, 2018State Compliance achieved2 linked violations
December 31, 2018State Compliance achieved2 linked violations
December 27, 2018State Public Notification received4 linked violations
September 19, 2018State Public Notification requested2 linked violations
May 29, 2018State Public Notification received5 linked violations
October 30, 2017State Compliance achieved2 linked violations
October 30, 2017State Compliance achieved2 linked violations
October 30, 2017State Compliance achieved4 linked violations
October 30, 2017State Compliance achieved2 linked violations
October 30, 2017State Compliance achieved2 linked violations
October 30, 2017State Compliance achieved4 linked violations
October 30, 2017State Compliance achieved3 linked violations
October 30, 2017State Compliance achieved3 linked violations
October 30, 2017State Compliance achieved4 linked violations
October 30, 2017State Compliance achieved2 linked violations
October 30, 2017State Compliance achieved2 linked violations
September 6, 2017State Public Notification requested5 linked violations
September 6, 2017State Public Notification requested3 linked violations
June 30, 2017State Public Notification received5 linked violations
May 12, 2017State Public Notification requested4 linked violations
May 12, 2017State Public Notification requested4 linked violations
May 12, 2017State Public Notification requested4 linked violations
May 12, 2017State Public Notification requested4 linked violations
May 12, 2017State Public Notification requested5 linked violations
March 27, 2017State Public Notification requested4 linked violations
February 27, 2017State Public Notification requested8 linked violations
December 14, 2016State Public Notification received7 linked violations
November 16, 2016State Public Notification received4 linked violations
August 15, 2016State Public Notification requested3 linked violations
February 22, 2016State Public Notification received7 linked violations
September 29, 2015State Administrative/Compliance Order without penalty issued7 linked violations
September 29, 2015State Administrative/Compliance Order without penalty issued2 linked violations
September 29, 2015State Administrative/Compliance Order without penalty issued3 linked violations
September 29, 2015State Administrative/Compliance Order without penalty issued4 linked violations
September 29, 2015State Administrative/Compliance Order without penalty issued4 linked violations
September 29, 2015State Administrative/Compliance Order without penalty issued3 linked violations
September 29, 2015State Administrative/Compliance Order without penalty issued6 linked violations
September 29, 2015State Administrative/Compliance Order without penalty issued20 linked violations
March 27, 2015State Public Notification received6 linked violations
March 18, 2015State Public Notification requested20 linked violations
September 30, 2014State Compliance achieved10 linked violations
August 6, 2014State Public Notification issued12 linked violations
June 2, 2014State Compliance achieved11 linked violations
June 2, 2014State Compliance achieved41 linked violations
May 5, 2014State Public Notification requested19 linked violations
October 5, 2010State Administrative/Compliance Order without penalty issued66 linked violations
October 5, 2010State Administrative/Compliance Order without penalty issued12 linked violations
October 5, 2010State Administrative/Compliance Order without penalty issued14 linked violations

Contact

CEDAR GULCH 2

6053917483

PIEDMONT, SD 57769