MICHIGAN CITY DEPARTMENT OF WATER WORKS

Indiana — Community Water System — PWSID: IN5246020

System Information

PWSID	IN5246020
System Name	MICHIGAN CITY DEPARTMENT OF WATER WORKS
System Type	Community Water System
Water Source	Surface Water
Activity Status	Active
Owner Type	Local
EPA Region	05
Serves School	No
Wholesaler	No
First Reported	Jan 21, 1981
Last Reported	Nov 14, 2025

Location & Contact

State	Indiana
City	MICHIGAN CITY
ZIP Code	46361
Address	P.O. Box 888
Organization	JOHNSEN, CHRISTOPHER
Phone	219-874-3228

Population & Service

Population Served	33,996
Service Connections	13,855

Drinking Water Violations (44)

This water system has 44 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, 2025	—	Consumer Confidence Rule	Other	No	No	—	—	—	Unaddressed	—	Consumer Confidence Rule
Jul 1, 2024	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 11, 2024	Consumer Confidence Rule
Jul 1, 2024	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 11, 2024	Consumer Confidence Rule
Jul 1, 2024	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 11, 2024	Consumer Confidence Rule
Sep 1, 2011	Sep 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2011	Total Coliform Rule
Sep 1, 2011	Sep 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2011	Total Coliform Rule
Sep 1, 2011	Sep 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2011	Total Coliform Rule
Sep 1, 2011	Sep 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2011	Total Coliform Rule
Sep 1, 2011	Sep 30, 2011	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2011	Total Coliform Rule
Jan 1, 2008	Dec 31, 2008	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2008	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2008	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2008	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2008	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2008	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2008	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2008	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2008	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2008	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2008	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2008	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2008	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2008	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2008	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2008	Inorganic Chemicals
Jul 1, 2006	Sep 30, 2006	Atrazine	MR	No	No	—	0.003 mg/L	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	Atrazine	MR	No	No	—	0.003 mg/L	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	Atrazine	MR	No	No	—	0.003 mg/L	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	Di(2-ethylhexyl) adipate	MR	No	No	—	0.4 mg/L	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	Simazine	MR	No	No	—	0.004 mg/L	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	Simazine	MR	No	No	—	0.004 mg/L	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	Simazine	MR	No	No	—	0.004 mg/L	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	Di(2-ethylhexyl) phthalate	MR	No	No	—	0.006 mg/L	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	Di(2-ethylhexyl) phthalate	MR	No	No	—	0.006 mg/L	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	LASSO	MR	No	No	—	—	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	LASSO	MR	No	No	—	—	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	LASSO	MR	No	No	—	—	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jul 1, 2006	Sep 30, 2006	Di(2-ethylhexyl) phthalate	MR	No	No	—	0.006 mg/L	—	Resolved	Sep 30, 2006	Synthetic Organic Chemicals
Jan 1, 2002	Mar 31, 2002	CARBON, TOTAL	MR	No	Yes	—	TT	—	Resolved	Mar 31, 2002	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2002	Mar 31, 2002	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2002	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2002	Mar 31, 2002	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2002	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2002	Mar 31, 2002	CARBON, TOTAL	MR	No	Yes	—	TT	—	Resolved	Mar 31, 2002	Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2001	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Apr 1, 2004	Consumer Confidence Rule
Oct 1, 2000	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Apr 1, 2004	Consumer Confidence Rule
Jan 19, 2000	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Apr 1, 2004	Consumer Confidence Rule
Oct 1, 1979	Oct 31, 1979	Mercury	MR	No	No	—	0.002 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Chromium	MR	No	No	—	0.1 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Barium	MR	No	No	—	2 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
—	—		—	No	No	—	—	—	—	—	—
—	—		—	No	No	—	—	—	—	—	—
—	—		—	No	No	—	—	—	—	—	—
—	—		—	No	No	—	—	—	—	—	—

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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