RAPID CITY, SD · Pennington County

CEDAR GULCH 1 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): SD4602301
System type: Community Water System
Population served: 45
Service connections: 14
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Treatment Technique No Certif. Operator
Health-based
Stage 1 Disinfectants and Disinfection Byproducts Rule
February 1, 2025 – May 22, 2025
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
May 11, 2019 – June 17, 2019
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2018 – September 30, 2018
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2018 – August 31, 2018
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2018 – July 31, 2018
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2018 – May 31, 2018
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
April 1, 2018 – April 30, 2018
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2017 – August 31, 2017
Resolved
Treatment Technique, Level 1 Assessment (RTCR)
Health-based
Revised Total Coliform Rule
April 13, 2017 – May 31, 2017
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2017 – May 31, 2017
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2017 – January 31, 2017
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2016 – November 30, 2016
Resolved
Monitoring, Regular
—
Simazine
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Benzene
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Endrin
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Picloram
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Endothall
January 1, 2014 – March 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2013 – September 30, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
Tetrachloroethylene
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
Dalapon
April 1, 2013 – June 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2013 – March 31, 2013
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
February 1, 2025 – May 22, 2025	Treatment Technique No Certif. Operator	Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-based	Resolved
May 11, 2019 – June 17, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
September 1, 2018 – September 30, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
August 1, 2018 – August 31, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2018 – July 31, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
May 1, 2018 – May 31, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2018 – April 30, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
August 1, 2017 – August 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 13, 2017 – May 31, 2017	Treatment Technique, Level 1 Assessment (RTCR)	Revised Total Coliform Rule	Health-based	Resolved
January 1, 2017 – May 31, 2017	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2017 – January 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
November 1, 2016 – November 30, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Simazine	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Benzene	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Endrin	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Picloram	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Endothall	—	Resolved
July 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	Tetrachloroethylene	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2013 – March 31, 2013	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

May 22, 2025State Compliance achieved5 linked violations
July 1, 2019State Compliance achieved4 linked violations
July 1, 2019State Compliance achieved4 linked violations
July 1, 2019State Compliance achieved4 linked violations
July 1, 2019State Compliance achieved2 linked violations
June 17, 2019State Public Notification received3 linked violations
October 3, 2018State Public Notification requested3 linked violations
August 7, 2018State Public Notification requested2 linked violations
June 5, 2018State Public Notification requested3 linked violations
January 17, 2018State Public Notification requested3 linked violations
May 31, 2017State Public Notification received5 linked violations
May 31, 2017State Public Notification received17 linked violations
May 31, 2017State Compliance achieved26 linked violations
May 1, 2017State Public Notification requested3 linked violations
March 14, 2017State Public Notification requested3 linked violations
December 5, 2016State Public Notification requested5 linked violations
May 17, 2016State Compliance achieved8 linked violations
February 1, 2015State Compliance achieved10 linked violations
May 5, 2014State Public Notification requested8 linked violations
May 5, 2014State Public Notification requested12 linked violations
May 5, 2014State Public Notification requested19 linked violations
April 28, 2014State Compliance achieved11 linked violations
April 28, 2014State Compliance achieved15 linked violations
April 28, 2014State Compliance achieved7 linked violations
April 28, 2014State Compliance achieved8 linked violations

Contact

CEDAR GULCH 1

Phone not on record

RAPID CITY, SD 57703