CHATHAM

Illinois — Community Water System — PWSID: IL1670300

System Information

PWSID	IL1670300
System Name	CHATHAM
System Type	Community Water System
Water Source	Ground Water Purchased
Activity Status	Active
Owner Type	Local
EPA Region	05
Serves School	No
Wholesaler	No
First Reported	Feb 13, 1981
Last Reported	Dec 4, 2025

Location & Contact

State	Illinois
City	CHATHAM
ZIP Code	62629
Address	116 E. MULBERRY
Organization	PATTERSON, DUSTIN
Phone	217-416-8388

Population & Service

Population Served	16,423
Service Connections	6,569

Drinking Water Violations (39)

This water system has 39 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
Jan 1, 2017	Dec 31, 2017	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017	Dec 31, 2017	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017	Dec 31, 2017	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017	Dec 31, 2017	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017	Dec 31, 2017	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017	Dec 31, 2017	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017	Dec 31, 2017	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017	Dec 31, 2017	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 25, 2016	Consumer Confidence Rule
Jul 1, 2016	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 25, 2016	Consumer Confidence Rule
Sep 1, 2012	Sep 30, 2012	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2012	Total Coliform Rule
Sep 1, 2012	Sep 30, 2012	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2012	Total Coliform Rule
Sep 1, 2012	Sep 30, 2012	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2012	Total Coliform Rule
Jul 1, 2012	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 13, 2012	Consumer Confidence Rule
Jul 1, 2012	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 13, 2012	Consumer Confidence Rule
Jul 1, 2010	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 10, 2010	Consumer Confidence Rule
Jul 1, 2010	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 10, 2010	Consumer Confidence Rule
Jul 1, 2008	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 12, 2008	Consumer Confidence Rule
Jul 1, 2008	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 12, 2008	Consumer Confidence Rule
Nov 30, 2006	—	Public Notice	Other	No	No	—	—	—	Resolved	Dec 16, 2006	Public Notice Rule and Revised PN Rule
Nov 30, 2006	—	Public Notice	Other	No	No	—	—	—	Resolved	Dec 16, 2006	Public Notice Rule and Revised PN Rule
Aug 25, 2006	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 30, 2006	Consumer Confidence Rule
Aug 25, 2006	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 30, 2006	Consumer Confidence Rule
Oct 1, 2005	Oct 31, 2005	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2005	Total Coliform Rule
Oct 1, 2005	Oct 31, 2005	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2005	Total Coliform Rule
Oct 1, 2005	Oct 31, 2005	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2005	Total Coliform Rule
Oct 1, 2005	Oct 31, 2005	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2005	Total Coliform Rule
Jul 1, 2005	Jul 31, 2005	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2005	Total Coliform Rule
Jul 1, 2005	Jul 31, 2005	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2005	Total Coliform Rule
Jul 1, 2005	Jul 31, 2005	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2005	Total Coliform Rule
Jul 1, 2005	Jul 31, 2005	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2005	Total Coliform Rule
Jul 1, 2003	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 7, 2003	Consumer Confidence Rule
Jul 1, 2003	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 7, 2003	Consumer Confidence Rule
Sep 1, 2000	Sep 30, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2000	Total Coliform Rule
Sep 1, 2000	Sep 30, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2000	Total Coliform Rule
Sep 1, 2000	Sep 30, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2000	Total Coliform Rule
Apr 1, 1996	Apr 30, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 30, 1996	Total Coliform Rule
Apr 1, 1996	Apr 30, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 30, 1996	Total Coliform Rule
Apr 1, 1996	Apr 30, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Apr 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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