OWANKA, SD · Pennington County

LAKESIDE WATER USERS DISTRICT 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): SD4602108
System type: Community Water System
Population served: 51
Service connections: 28
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Toluene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Benzene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Styrene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Endothall
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Diquat
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
LASSO
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Simazine
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Picloram
January 1, 2014 – March 31, 2014
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Simazine
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2008 – March 31, 2008
Resolved
Notification, Public
—
Lead and Copper Rule
February 13, 2000 – March 12, 2000
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
Toluene
January 1, 1997 – December 31, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1996 – November 30, 1996
Archived
Monitoring, Regular
—
Barium
December 18, 1995 – December 17, 1998
Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Toluene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Benzene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Styrene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Endothall	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Diquat	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	LASSO	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Simazine	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring, Regular	Picloram	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Simazine	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Atrazine	—	Resolved
February 13, 2000 – March 12, 2000	Notification, Public	Lead and Copper Rule	—	Archived
January 1, 1997 – December 31, 1997	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1997 – December 31, 1997	Monitoring, Regular	Toluene	—	Resolved
November 1, 1996 – November 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
December 18, 1995 – December 17, 1998	Monitoring, Regular	Barium	—	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

January 30, 2020State Compliance achieved4 linked violations
January 30, 2020State Compliance achieved4 linked violations
January 30, 2020State Compliance achieved3 linked violations
January 30, 2020State Compliance achieved3 linked violations
January 30, 2020State Compliance achieved2 linked violations
January 30, 2020State Compliance achieved2 linked violations
January 30, 2020State Compliance achieved2 linked violations
January 14, 2020State Public Notification requested4 linked violations
January 14, 2020State Public Notification requested3 linked violations
January 14, 2020State Public Notification requested3 linked violations
January 14, 2020State Public Notification requested2 linked violations
January 14, 2020State Public Notification requested6 linked violations
January 14, 2020State Public Notification requested4 linked violations
January 14, 2020State Public Notification requested4 linked violations
January 14, 2020State Public Notification requested3 linked violations
January 14, 2020State Public Notification requested3 linked violations
May 27, 2014State Compliance achieved5 linked violations
May 27, 2014State Compliance achieved5 linked violations
May 27, 2014State Compliance achieved6 linked violations
May 27, 2014State Compliance achieved6 linked violations
May 5, 2014State Public Notification requested2 linked violations
May 5, 2014State Public Notification requested2 linked violations
May 5, 2014State Public Notification requested2 linked violations
May 5, 2014State Public Notification requested2 linked violations
May 5, 2014State Public Notification requested2 linked violations
May 5, 2014State Public Notification requested2 linked violations
May 5, 2014State Public Notification requested2 linked violations
May 5, 2014State Public Notification requested4 linked violations
May 5, 2014State Public Notification requested4 linked violations
June 21, 2009State Public Notification received2 linked violations
June 19, 2008State Compliance achieved1 linked violation
June 19, 2008State Compliance achieved3 linked violations
June 19, 2008State Compliance achieved1 linked violation
June 19, 2008State Compliance achieved1 linked violation
June 19, 2008State Compliance achieved1 linked violation
June 19, 2008State Compliance achieved2 linked violations
June 19, 2008State Compliance achieved2 linked violations
June 19, 2008State Compliance achieved8 linked violations
June 19, 2008State Compliance achieved3 linked violations
June 19, 2008State Compliance achieved2 linked violations
June 19, 2008State Compliance achieved1 linked violation
June 19, 2008State Compliance achieved2 linked violations
June 19, 2008State Compliance achieved2 linked violations
April 25, 2008State Public Notification requested2 linked violations
April 25, 2008State Public Notification requested2 linked violations
April 25, 2008State Public Notification requested2 linked violations
April 25, 2008State Public Notification requested2 linked violations
April 25, 2008State Public Notification requested3 linked violations
April 25, 2008State Public Notification requested2 linked violations
April 25, 2008State Public Notification requested4 linked violations
April 25, 2008State Public Notification requested2 linked violations
April 25, 2008State Public Notification requested1 linked violation
April 25, 2008State Public Notification requested1 linked violation
April 25, 2008State Public Notification requested2 linked violations
April 25, 2008State Public Notification requested1 linked violation
April 25, 2008State Public Notification requested2 linked violations
April 25, 2008State Public Notification requested2 linked violations
April 25, 2008State Public Notification requested1 linked violation
August 23, 2007State Compliance achieved4 linked violations
July 12, 2007State Public Notification issued2 linked violations
July 3, 2006State Compliance achieved2 linked violations
November 10, 2003State Public Notification received5 linked violations
July 3, 2001State Compliance achieved3 linked violations
March 13, 2000State Public Notification issued10 linked violations
January 21, 2000State Public Notification requested9 linked violations
August 10, 1999State Public Notification issued14 linked violations
February 3, 1999State Compliance achieved10 linked violations
June 26, 1998State Compliance achieved78 linked violations
December 12, 1996State Compliance achieved39 linked violations
May 1, 1994State Compliance achieved1 linked violation
May 1, 1994State Compliance achieved1 linked violation

Contact

LAKESIDE WATER USERS DISTRICT

Phone not on record

OWANKA, SD 57767