EGAN

South Dakota — Community Water System — PWSID: SD4600115

System Information

PWSID	SD4600115
System Name	EGAN
System Type	Community Water System
Water Source	Ground 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	EGAN
ZIP Code	57024
Address	23343 479TH AVENUE
Organization	EGAN
Phone	6059972098

Population & Service

Population Served	241
Service Connections	125

Drinking Water Violations (49)

This water system has 49 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
Sep 21, 2011	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Apr 17, 2012	Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 21, 2011	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Apr 17, 2012	Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 26, 2011	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Dec 31, 2011	Ground Water Rule
Aug 26, 2011	—	Groundwater Rule	TT	Yes	No	—	—	—	Resolved	Dec 31, 2011	Ground Water Rule
Jan 1, 2011	Mar 31, 2011	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2011	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011	Mar 31, 2011	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2011	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 29, 2010	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Sep 1, 2010	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 29, 2010	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Sep 1, 2010	Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2009	Dec 31, 2009	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2009	Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2009	Dec 31, 2009	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2009	Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 20, 2009	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Apr 8, 2010	Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 20, 2009	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Apr 8, 2010	Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2003	Oct 31, 2003	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2003	Total Coliform Rule
Oct 1, 2003	Oct 31, 2003	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2003	Total Coliform Rule
Oct 1, 2003	Oct 31, 2003	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2003	Total Coliform Rule
Jul 1, 2003	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 10, 2003	Consumer Confidence Rule
Jul 1, 2003	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 10, 2003	Consumer Confidence Rule
Jan 1, 2001	Jan 31, 2001	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Jan 31, 2001	Total Coliform Rule
Jan 1, 2001	Jan 31, 2001	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Jan 31, 2001	Total Coliform Rule
Jan 1, 2001	Jan 31, 2001	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Jan 31, 2001	Total Coliform Rule
Jul 1, 2000	Jul 21, 2000	Consumer Confidence Rule	Other	No	Yes	—	—	—	Resolved	Jul 21, 2000	Consumer Confidence Rule
Jul 1, 2000	Jul 21, 2000	Consumer Confidence Rule	Other	No	Yes	—	—	—	Resolved	Jul 21, 2000	Consumer Confidence Rule
Apr 1, 2000	Apr 30, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Apr 30, 2000	Total Coliform Rule
Apr 1, 2000	Apr 30, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Apr 30, 2000	Total Coliform Rule
Apr 1, 2000	Apr 30, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Apr 30, 2000	Total Coliform Rule
Jul 1, 1995	Jun 28, 1996	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 28, 1996	Lead and Copper Rule
Jul 1, 1995	Jun 28, 1996	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 28, 1996	Lead and Copper Rule
Jul 1, 1995	Jun 28, 1996	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 28, 1996	Lead and Copper Rule
Jan 1, 1995	Jun 28, 1996	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 28, 1996	Lead and Copper Rule
Jul 1, 1994	Jun 28, 1996	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 28, 1996	Lead and Copper Rule
Jul 1, 1994	Jun 28, 1996	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 28, 1996	Lead and Copper Rule
Jan 1, 1994	Jun 28, 1996	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 28, 1996	Lead and Copper Rule
Jan 1, 1994	Jun 28, 1996	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Jun 28, 1996	Lead and Copper Rule
Jan 1, 1993	Dec 31, 1995	Asbestos	MR	No	Yes	—	7 MFL	—	Resolved	Dec 31, 1995	Inorganic Chemicals
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1992	Total Coliform Rule
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1992	Total Coliform Rule
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1992	Total Coliform Rule
Jan 1, 1992	Jan 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jan 31, 1992	Total Coliform Rule
Jan 1, 1992	Jan 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jan 31, 1992	Total Coliform Rule
Jan 1, 1992	Jan 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jan 31, 1992	Total Coliform Rule
Jan 1, 1992	Jan 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jan 31, 1992	Total Coliform Rule
Dec 1, 1991	Dec 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1991	Total Coliform Rule
Dec 1, 1991	Dec 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1991	Total Coliform Rule
Dec 1, 1991	Dec 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1991	Total Coliform Rule
Dec 1, 1991	Dec 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1991	Total Coliform Rule
Oct 1, 1991	Oct 31, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 1991	Total Coliform Rule
Sep 1, 1991	Sep 30, 1991	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 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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