ISABEL

South Dakota — Community Water System — PWSID: SD4600175

System Information

PWSID	SD4600175
System Name	ISABEL
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	ISABEL
ZIP Code	57633
Address	PO BOX 268
Organization	ISABEL
Phone	6054662177

Population & Service

Population Served	145
Service Connections	135

Drinking Water Violations (267)

This water system has 267 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
Nov 1, 2015	Nov 30, 2015	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Nov 30, 2015	Total Coliform Rule
Nov 1, 2015	Nov 30, 2015	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Nov 30, 2015	Total Coliform Rule
Nov 1, 2015	Nov 30, 2015	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Nov 30, 2015	Total Coliform Rule
Jan 1, 2010	Jan 31, 2010	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jan 31, 2010	Total Coliform Rule
Jan 1, 2010	Mar 31, 2010	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2010	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2010	Mar 31, 2010	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2010	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2010	Mar 31, 2010	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2010	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2010	Jan 31, 2010	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jan 31, 2010	Total Coliform Rule
Jan 1, 2010	Jan 31, 2010	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jan 31, 2010	Total Coliform Rule
Sep 1, 2008	Sep 30, 2008	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2008	Total Coliform Rule
Sep 1, 2008	Sep 30, 2008	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2008	Total Coliform Rule
Sep 1, 2008	Sep 30, 2008	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2008	Total Coliform Rule
Aug 1, 2007	Aug 31, 2007	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2007	Total Coliform Rule
Aug 1, 2007	Aug 31, 2007	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2007	Total Coliform Rule
Aug 1, 2007	Aug 31, 2007	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2007	Total Coliform Rule
Apr 10, 2006	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 3, 2007	Public Notice Rule and Revised PN Rule
Apr 10, 2006	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 3, 2007	Public Notice Rule and Revised PN Rule
Jan 10, 2006	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 3, 2007	Public Notice Rule and Revised PN Rule
Jan 10, 2006	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 3, 2007	Public Notice Rule and Revised PN Rule
Oct 10, 2005	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 3, 2007	Public Notice Rule and Revised PN Rule
Oct 10, 2005	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 3, 2007	Public Notice Rule and Revised PN Rule
Jul 10, 2005	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 3, 2007	Public Notice Rule and Revised PN Rule
Jul 10, 2005	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 3, 2007	Public Notice Rule and Revised PN Rule
May 2, 2004	—	Public Notice	Other	No	No	—	—	—	Resolved	Jul 3, 2007	Public Notice Rule and Revised PN Rule
Mar 1, 2004	Mar 31, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2004	Total Coliform Rule
Mar 1, 2004	Mar 31, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2004	Total Coliform Rule
Mar 1, 2004	Mar 31, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2004	Total Coliform Rule
Mar 1, 2004	Mar 31, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2004	Total Coliform Rule
Mar 1, 2004	Mar 31, 2004	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Mar 31, 2004	Total Coliform Rule
Mar 1, 2004	Mar 31, 2004	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Mar 31, 2004	Total Coliform Rule
Mar 1, 2004	Mar 31, 2004	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Mar 31, 2004	Total Coliform Rule
Feb 1, 2004	Feb 29, 2004	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Feb 29, 2004	Total Coliform Rule
Feb 1, 2004	Feb 29, 2004	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Feb 29, 2004	Total Coliform Rule
Feb 1, 2004	Feb 29, 2004	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Feb 29, 2004	Total Coliform Rule
Jan 1, 2004	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Nov 19, 2004	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2004	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Nov 19, 2004	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2003	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 3, 2003	Consumer Confidence Rule
Jul 1, 2003	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 3, 2003	Consumer Confidence Rule
Jul 1, 2001	Sep 30, 2001	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Sep 30, 2001	Nitrate Rule
Jul 1, 2001	Sep 30, 2001	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Sep 30, 2001	Nitrate Rule
Jan 1, 2001	Dec 31, 2001	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 2001	Dec 31, 2001	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 2001	Dec 31, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2001	Arsenic Rule
Jan 1, 2001	Dec 31, 2001	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 2001	Dec 31, 2001	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 2001	Dec 31, 2001	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2001	Arsenic Rule
Jan 1, 2001	Dec 31, 2001	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 2001	Dec 31, 2001	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 2001	Dec 31, 2001	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals
Jan 1, 2001	Dec 31, 2001	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2001	Inorganic Chemicals

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.

Browse All Water Systems Water Safety Stats Water Safety Home

Browse All Water Systems Water Systems in South Dakota