PEARL CREEK COLONY

South Dakota — Community Water System — PWSID: SD4602073

System Information

PWSID	SD4602073
System Name	PEARL CREEK COLONY
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Private
EPA Region	08
Serves School	No
Wholesaler	No
First Reported	Sep 4, 1991
Last Reported	Dec 9, 2025

Location & Contact

State	South Dakota
City	IROQUOIS
ZIP Code	57353
Address	21085 415TH AVE
Organization	PEARL CREEK COLONY
Phone	6055462452

Population & Service

Population Served	94
Service Connections	32

Drinking Water Violations (78)

This water system has 78 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
Oct 17, 2019	Dec 31, 2025	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 30, 2022	Lead and Copper Rule
Oct 17, 2019	Dec 31, 2025	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Aug 30, 2022	Lead and Copper 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
Sep 1, 2013	Sep 30, 2013	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2013	Total Coliform Rule
Sep 1, 2013	Sep 30, 2013	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2013	Total Coliform Rule
Sep 1, 2013	Sep 30, 2013	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2013	Total Coliform Rule
Oct 1, 2007	Oct 31, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2007	Total Coliform Rule
Oct 1, 2007	Oct 31, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2007	Total Coliform Rule
Oct 1, 2007	Oct 31, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Oct 31, 2007	Total Coliform Rule
Sep 1, 2006	Sep 30, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2006	Total Coliform Rule
Sep 1, 2006	Sep 30, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2006	Total Coliform Rule
Sep 1, 2006	Sep 30, 2006	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2006	Total Coliform Rule
Sep 1, 2006	Sep 30, 2006	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2006	Total Coliform Rule
Sep 1, 2006	Sep 30, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2006	Total Coliform Rule
Jul 1, 2004	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 2, 2004	Consumer Confidence Rule
Jul 1, 2004	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 2, 2004	Consumer Confidence Rule
Nov 1, 2001	Nov 30, 2001	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Nov 30, 2001	Total Coliform Rule
Nov 1, 2001	Nov 30, 2001	Coliform (TCR)	MR	No	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
Oct 1, 2001	Oct 31, 2001	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2001	Total Coliform Rule
Oct 1, 2001	Oct 31, 2001	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2001	Total Coliform Rule
Oct 1, 2001	Oct 31, 2001	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2001	Total Coliform Rule
Sep 1, 2001	Sep 30, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2001	Total Coliform Rule
Sep 1, 2001	Sep 30, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2001	Total Coliform Rule
Sep 1, 2001	Sep 30, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2001	Total Coliform Rule
Jul 1, 2001	Aug 14, 2001	Consumer Confidence Rule	Other	No	Yes	—	—	—	Resolved	Aug 14, 2001	Consumer Confidence Rule
Jul 1, 2001	Aug 14, 2001	Consumer Confidence Rule	Other	No	Yes	—	—	—	Resolved	Aug 14, 2001	Consumer Confidence Rule
Jun 1, 2000	Jun 30, 2000	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 2000	Total Coliform Rule
Jun 1, 2000	Jun 30, 2000	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 2000	Total Coliform Rule
Dec 1, 1999	Dec 31, 1999	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Dec 31, 1999	Total Coliform Rule
Sep 1, 1999	Sep 30, 1999	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Sep 30, 1999	Total Coliform Rule
Sep 1, 1999	Sep 30, 1999	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Sep 30, 1999	Total Coliform Rule
Jul 1, 1999	Jul 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1999	Total Coliform Rule
Jul 1, 1999	Jul 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1999	Total Coliform Rule
Jul 1, 1999	Jul 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1999	Total Coliform Rule
Jul 1, 1999	Jul 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1999	Total Coliform Rule
Jul 1, 1999	Jul 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1999	Total Coliform Rule
Jul 1, 1999	Jul 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1999	Total Coliform Rule
Mar 1, 1999	Mar 31, 1999	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Mar 31, 1999	Total Coliform Rule
Sep 1, 1998	Sep 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1998	Total Coliform Rule
Sep 1, 1998	Sep 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1998	Total Coliform Rule
Sep 1, 1998	Sep 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1998	Total Coliform Rule
Oct 1, 1997	Oct 31, 1997	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Oct 31, 1997	Total Coliform Rule
Oct 1, 1997	Oct 31, 1997	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Oct 31, 1997	Total Coliform Rule
Nov 1, 1996	Nov 30, 1996	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Nov 30, 1996	Total Coliform Rule
Nov 1, 1996	Nov 30, 1996	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Nov 30, 1996	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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