SAINT ONGE SEWER & WATER CO

South Dakota — Community Water System — PWSID: SD4600287

System Information

PWSID	SD4600287
System Name	SAINT ONGE SEWER & WATER CO
System Type	Community Water System
Water Source	Ground Water
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	SPEARFISH
ZIP Code	57783
Address	1221 N MAIN STREET
Organization	SAINT ONGE SEWER & WATER CO
Phone	6056457369

Population & Service

Population Served	255
Service Connections	85

Drinking Water Violations (131)

This water system has 131 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 1, 2006	Jul 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2006	Total Coliform Rule
Jun 1, 2006	Jun 30, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2006	Total Coliform Rule
Jun 1, 2006	Jun 30, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2006	Total Coliform Rule
Jun 1, 2006	Jun 30, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2006	Total Coliform Rule
Sep 1, 2004	Sep 30, 2004	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2004	Total Coliform Rule
Sep 1, 2004	Sep 30, 2004	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2004	Total Coliform Rule
Sep 1, 2004	Sep 30, 2004	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2004	Total Coliform Rule
Jul 1, 2004	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 26, 2004	Consumer Confidence Rule
Jul 1, 2004	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 26, 2004	Consumer Confidence Rule
Nov 1, 2001	Nov 30, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2001	Total Coliform Rule
Nov 1, 2001	Nov 30, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2001	Total Coliform Rule
Nov 1, 2001	Nov 30, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2001	Total Coliform Rule
Oct 1, 2001	Oct 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2001	Total Coliform Rule
Oct 1, 2001	Oct 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2001	Total Coliform Rule
Oct 1, 2001	Oct 31, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2001	Total Coliform Rule
Aug 1, 2000	Aug 31, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 2000	Total Coliform Rule
Aug 1, 2000	Aug 31, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 2000	Total Coliform Rule
Aug 1, 2000	Aug 31, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 2000	Total Coliform Rule
Oct 1, 1999	Oct 31, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Oct 31, 1999	Total Coliform Rule
Oct 1, 1999	Oct 31, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Oct 31, 1999	Total Coliform Rule
Sep 1, 1997	Sep 30, 1997	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1997	Total Coliform Rule
Sep 1, 1997	Sep 30, 1997	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1997	Total Coliform Rule
Sep 1, 1997	Sep 30, 1997	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1997	Total Coliform Rule
Aug 1, 1997	Aug 31, 1997	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 1997	Total Coliform Rule
Aug 1, 1997	Aug 31, 1997	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 1997	Total Coliform Rule
Aug 1, 1997	Aug 31, 1997	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 1997	Total Coliform Rule
Apr 1, 1996	Apr 30, 1996	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Apr 30, 1996	Total Coliform Rule
Apr 1, 1996	Apr 30, 1996	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Apr 30, 1996	Total Coliform Rule
Jul 1, 1995	May 15, 1996	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	May 15, 1996	Lead and Copper Rule
Jan 1, 1995	May 15, 1996	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	May 15, 1996	Lead and Copper Rule
Jan 1, 1995	May 15, 1996	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	May 15, 1996	Lead and Copper Rule
Jan 1, 1994	Aug 1, 1994	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 1, 1994	Lead and Copper Rule
Jan 1, 1994	Aug 1, 1994	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 1, 1994	Lead and Copper Rule
Jan 1, 1993	Dec 31, 1995	ETHYLENE DIBROMIDE	MR	No	Yes	—	0.00005 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1993	cis-1,2-Dichloroethylene	MR	No	Yes	—	0.07 mg/L	—	Resolved	Dec 31, 1993	Volatile Organic Chemicals
Jan 1, 1993	Dec 31, 1995	Carbofuran	MR	No	Yes	—	0.04 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	Carbofuran	MR	No	Yes	—	0.04 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	Carbofuran	MR	No	Yes	—	0.04 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	BHC-GAMMA	MR	No	Yes	—	0.0002 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	BHC-GAMMA	MR	No	Yes	—	0.0002 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	BHC-GAMMA	MR	No	Yes	—	0.0002 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	Diquat	MR	No	Yes	—	0.02 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	Endothall	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	Glyphosate	MR	No	Yes	—	0.7 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	Glyphosate	MR	No	Yes	—	0.7 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	Glyphosate	MR	No	Yes	—	0.7 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	Diquat	MR	No	Yes	—	0.02 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	ETHYLENE DIBROMIDE	MR	No	Yes	—	0.00005 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic Chemicals
Jan 1, 1993	Dec 31, 1995	Di(2-ethylhexyl) phthalate	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 1995	Synthetic Organic 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.

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