NEMO GUEST RANCH

South Dakota — Transient Non-Community — PWSID: SD4600535

System Information

PWSID	SD4600535
System Name	NEMO GUEST RANCH
System Type	Transient Non-Community
Water Source	Ground Water
Activity Status	Active
Owner Type	Private
EPA Region	08
Serves School	No
Wholesaler	No
First Reported	Mar 4, 1980
Last Reported	Dec 9, 2025

Location & Contact

State	South Dakota
City	NEMO
ZIP Code	57759
Address	PO BOX 104
Organization	NEMO GUEST RANCH
Phone	—

Population & Service

Population Served	65
Service Connections	58

Drinking Water Violations (129)

This water system has 129 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
Mar 1, 2019	Mar 31, 2019	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Mar 31, 2019	Revised Total Coliform Rule
Mar 1, 2019	Mar 31, 2019	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Mar 31, 2019	Revised Total Coliform Rule
Jun 1, 2016	—	Revised Total Coliform Rule	Other	No	No	—	—	—	Resolved	Jul 14, 2016	Revised Total Coliform Rule
Jun 1, 2016	—	Revised Total Coliform Rule	Other	No	No	—	—	—	Resolved	Jul 14, 2016	Revised Total Coliform Rule
Jun 1, 2016	—	Revised Total Coliform Rule	TT	Yes	No	—	—	—	Resolved	Jul 13, 2016	Revised Total Coliform Rule
Jun 1, 2016	—	Revised Total Coliform Rule	TT	Yes	No	—	—	—	Resolved	Jul 13, 2016	Revised Total Coliform Rule
Nov 3, 2006	—	Public Notice	Other	No	No	—	—	—	Resolved	Dec 31, 2010	Public Notice Rule and Revised PN Rule
Sep 5, 2005	—	Public Notice	Other	No	No	—	—	—	Resolved	Dec 31, 2010	Public Notice Rule and Revised PN Rule
Jul 1, 2005	Sep 30, 2005	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2005	Total Coliform Rule
Jul 1, 2005	Sep 30, 2005	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2005	Total Coliform Rule
Jul 1, 2005	Sep 30, 2005	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2005	Total Coliform Rule
Aug 1, 2004	Aug 31, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2004	Total Coliform Rule
Aug 1, 2004	Aug 31, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2004	Total Coliform Rule
Aug 1, 2004	Aug 31, 2004	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2004	Total Coliform Rule
Jul 17, 2002	Jul 17, 2007		Other	No	No	—	—	—	Resolved	Jul 17, 2007	Total Coliform Rule
Jul 17, 2002	Jul 17, 2007		Other	No	No	—	—	—	Resolved	Jul 17, 2007	Total Coliform Rule
May 5, 2002	—	Public Notice	Other	No	No	—	—	—	Resolved	Dec 31, 2010	Public Notice Rule and Revised PN Rule
Mar 1, 2002	Mar 31, 2002	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2002	Total Coliform Rule
Mar 1, 2002	Mar 31, 2002	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2002	Total Coliform Rule
Mar 1, 2002	Mar 31, 2002	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2002	Total Coliform Rule
Feb 12, 2002	—	Public Notice	Other	No	No	—	—	—	Resolved	Dec 31, 2010	Public Notice Rule and Revised PN Rule
Dec 1, 2001	Dec 31, 2001	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2001	Total Coliform Rule
Dec 1, 2001	Dec 31, 2001	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2001	Total Coliform Rule
Dec 1, 2001	Dec 31, 2001	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2001	Total Coliform Rule
Aug 1, 2000	Aug 31, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Aug 31, 2000	Total Coliform Rule
Aug 1, 2000	Aug 31, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Aug 31, 2000	Total Coliform Rule
Aug 1, 2000	Aug 31, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Aug 31, 2000	Total Coliform Rule
Jun 14, 2000	Jul 13, 2000	Coliform (TCR)	Other	No	No	—	5% of samples	—	Archived	Jul 13, 2000	Total Coliform Rule
Jun 13, 2000	Jul 12, 2000	Coliform (TCR)	Other	No	No	—	5% of samples	—	Archived	Jul 12, 2000	Total Coliform Rule
May 16, 2000	Jun 15, 2000	Coliform (TCR)	Other	No	No	—	5% of samples	—	Archived	Jun 15, 2000	Total Coliform Rule
May 1, 2000	May 31, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	May 31, 2000	Total Coliform Rule
May 1, 2000	May 31, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	May 31, 2000	Total Coliform Rule
May 1, 2000	May 31, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	May 31, 2000	Total Coliform Rule
Apr 10, 2000	May 9, 2000	Coliform (TCR)	Other	No	No	—	5% of samples	—	Archived	May 9, 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
Apr 1, 2000	Apr 30, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Apr 30, 2000	Total Coliform Rule
Mar 1, 2000	Mar 31, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Mar 31, 2000	Total Coliform Rule
Mar 1, 2000	Mar 31, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Mar 31, 2000	Total Coliform Rule
Mar 1, 2000	Mar 31, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Mar 31, 2000	Total Coliform Rule
Feb 13, 2000	Mar 12, 2000	Coliform (TCR)	Other	No	No	—	5% of samples	—	Archived	Mar 12, 2000	Total Coliform Rule
Feb 1, 2000	Feb 29, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Feb 29, 2000	Total Coliform Rule
Feb 1, 2000	Feb 29, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Feb 29, 2000	Total Coliform Rule
Feb 1, 2000	Feb 29, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Feb 29, 2000	Total Coliform Rule
Jan 17, 2000	Feb 16, 2000	Coliform (TCR)	Other	No	No	—	5% of samples	—	Archived	Feb 16, 2000	Total Coliform Rule
Dec 13, 1999	Jan 12, 2000	Coliform (TCR)	Other	No	No	—	5% of samples	—	Archived	Jan 12, 2000	Total Coliform Rule
Dec 1, 1999	Dec 31, 1999	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Dec 31, 1999	Total Coliform Rule
Dec 1, 1999	Dec 31, 1999	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Dec 31, 1999	Total Coliform Rule
Dec 1, 1999	Dec 31, 1999	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Dec 31, 1999	Total Coliform Rule
Dec 1, 1999	Dec 31, 1999	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Resolved	Dec 31, 1999	Total Coliform 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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