PLANKINTON

South Dakota — Community Water System — PWSID: SD4600245

System Information

PWSID	SD4600245
System Name	PLANKINTON
System Type	Community Water System
Water Source	Surface Water Purchased
Activity Status	Active
Owner Type	Local
EPA Region	08
Serves School	No
Wholesaler	No
First Reported	Feb 13, 1979
Last Reported	Dec 9, 2025

Location & Contact

State	South Dakota
City	PLANKINTON
ZIP Code	57368
Address	PO BOX 517
Organization	PLANKINTON
Phone	6059427767

Population & Service

Population Served	782
Service Connections	410

Drinking Water Violations (36)

This water system has 36 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Contaminant	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Jul 2, 2010	—	Stage 2 Disinfectants and Disinfection Byproducts Rule	MR	No	Yes	—	—	—	Resolved	Sep 10, 2010	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 2, 2010	—	Stage 2 Disinfectants and Disinfection Byproducts Rule	MR	No	Yes	—	—	—	Resolved	Sep 10, 2010	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 2, 2010	—	Stage 2 Disinfectants and Disinfection Byproducts Rule	MR	No	Yes	—	—	—	Resolved	Sep 10, 2010	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2009	Sep 30, 2009	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Sep 30, 2009	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2009	Sep 30, 2009	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Sep 30, 2009	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2009	Sep 30, 2009	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Sep 30, 2009	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2009	Sep 30, 2009	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Sep 30, 2009	Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2001	Dec 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 2001	Total Coliform Rule
Dec 1, 2001	Dec 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 2001	Total Coliform Rule
Dec 1, 2001	Dec 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 2001	Total Coliform Rule
Jun 1, 1998	Jun 30, 1998	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Jun 30, 1998	Total Coliform Rule
Sep 1, 1996	Sep 30, 1996	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Sep 30, 1996	Total Coliform Rule
Sep 1, 1996	Sep 30, 1996	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1996	Total Coliform Rule
Sep 1, 1996	Sep 30, 1996	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1996	Total Coliform Rule
Aug 1, 1996	Aug 31, 1996	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 1996	Total Coliform Rule
Aug 1, 1996	Aug 31, 1996	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 1996	Total Coliform Rule
Jul 1, 1996	Jul 31, 1996	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Jul 31, 1996	Total Coliform Rule
Feb 1, 1994	Feb 28, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Feb 28, 1994	Total Coliform Rule
Feb 1, 1994	Feb 28, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Feb 28, 1994	Total Coliform Rule
Feb 1, 1994	Feb 28, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Feb 28, 1994	Total Coliform Rule
Jan 1, 1994	Jan 31, 1994	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jan 31, 1994	Total Coliform Rule
Dec 1, 1993	Dec 31, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1993	Total Coliform Rule
Dec 1, 1993	Dec 31, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1993	Total Coliform Rule
Dec 1, 1993	Dec 31, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1993	Total Coliform Rule
Nov 1, 1993	Nov 30, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 1993	Total Coliform Rule
Nov 1, 1993	Nov 30, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 1993	Total Coliform Rule
Sep 1, 1993	Sep 30, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1993	Total Coliform Rule
Aug 1, 1993	Aug 31, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 1993	Total Coliform Rule
Aug 1, 1993	Aug 31, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 1993	Total Coliform Rule
Aug 1, 1993	Aug 31, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 1993	Total Coliform Rule
Jan 1, 1993	Dec 31, 1995	Nitrite	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 1995	Nitrate Rule
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1992	Total Coliform Rule
Aug 1, 1992	Aug 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 1992	Total Coliform Rule
Oct 1, 1991	Oct 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1991	Total Coliform Rule
Jul 1, 1976	Jun 30, 1980	Gross Alpha, Excl. Radon and U	MR	No	No	—	15 pCi/L	—	Archived	Jun 30, 1980	Radionuclides and Revised Rad Rule
Jul 1, 1976	Jun 30, 1980	Combined Radium (-226 and -228)	MR	No	No	—	5 pCi/L	—	Archived	Jun 30, 1980	Radionuclides and Revised Rad Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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