PLAINFIELD, IL · Will County

PLAINFIELD Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.

System facts

System ID (PWSID): IL1970800
System type: Community Water System
Population served: 50,000
Service connections: 15,894
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2025 – October 7, 2025
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 13, 2022 – March 30, 2022
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2017 – June 14, 2018
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2014 – August 29, 2014
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2014 – July 31, 2014
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2011 – December 2, 2011
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 2, 2010 – January 25, 2010
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2009 – January 31, 2009
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 28, 2007 – April 2, 2007
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
February 28, 2007 – April 2, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 2006 – September 30, 2006
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2006 – January 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2003 – December 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2003 – September 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2003 – June 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2003 – March 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2002 – December 31, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2001 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
February 1, 2001 – February 28, 2001
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2000 – September 30, 2000
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 1999 – March 12, 2001
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 1992 – January 31, 1992
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
January 1, 1992 – January 31, 1992
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
November 1, 1989 – September 30, 1993
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 1989 – September 30, 1993
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
May 5, 1986 – May 4, 1990
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 4, 1985 – October 3, 1989
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – October 7, 2025	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 13, 2022 – March 30, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2017 – June 14, 2018	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2014 – August 29, 2014	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2014 – July 31, 2014	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2011 – December 2, 2011	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 2, 2010 – January 25, 2010	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2009 – January 31, 2009	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
February 28, 2007 – April 2, 2007	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
February 28, 2007 – April 2, 2007	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
September 1, 2006 – September 30, 2006	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2006 – January 31, 2006	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2003 – December 31, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2003 – September 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2003 – June 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2003 – March 31, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2002 – December 31, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2001 – September 30, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
February 1, 2001 – February 28, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
September 1, 2000 – September 30, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 1999 – March 12, 2001	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 1992 – January 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 1992 – January 31, 1992	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1989 – September 30, 1993	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 1989 – September 30, 1993	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
May 5, 1986 – May 4, 1990	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 4, 1985 – October 3, 1989	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

October 7, 2025State Compliance achieved1 linked violation
August 20, 2025State Violation/Reminder Notice1 linked violation
March 30, 2022State Compliance achieved1 linked violation
March 10, 2022State Violation/Reminder Notice1 linked violation
June 14, 2018State Compliance achieved1 linked violation
August 25, 2017State Violation/Reminder Notice1 linked violation
June 29, 2015State Public Notification received1 linked violation
June 29, 2015State Public Notification received1 linked violation
August 29, 2014State Compliance achieved2 linked violations
August 13, 2014State Public Notification requested1 linked violation
August 13, 2014State Public Notification requested1 linked violation
August 13, 2014State Violation/Reminder Notice1 linked violation
August 13, 2014State Violation/Reminder Notice1 linked violation
December 2, 2011State Compliance achieved1 linked violation
September 28, 2011State Violation/Reminder Notice1 linked violation
January 25, 2010State Compliance achieved1 linked violation
January 12, 2010State Violation/Reminder Notice1 linked violation
August 1, 2009State Compliance achieved1 linked violation
July 16, 2009State Public Notification received1 linked violation
February 18, 2009State Public Notification requested1 linked violation
February 18, 2009State Violation/Reminder Notice1 linked violation
April 2, 2007State Compliance achieved25 linked violations
April 2, 2007State Public Notification received2 linked violations
April 1, 2007State Compliance achieved1 linked violation
March 13, 2007State Violation/Reminder Notice2 linked violations
October 16, 2006State Violation/Reminder Notice1 linked violation
October 16, 2006State Public Notification requested1 linked violation
August 1, 2006State Compliance achieved1 linked violation
February 27, 2006State Public Notification requested1 linked violation
February 27, 2006State Violation/Reminder Notice1 linked violation
June 4, 2004State Public Notification received1 linked violation
April 27, 2004State Compliance achieved6 linked violations
April 10, 2004State Public Notification requested1 linked violation
March 18, 2004State Public Notification received1 linked violation
January 10, 2003State Public Notification requested6 linked violations
June 15, 2001State Violation/Reminder Notice2 linked violations
April 15, 2001State Violation/Reminder Notice1 linked violation
May 1, 1998State Public Notification received1 linked violation
February 15, 1998State Public Notification received1 linked violation
November 15, 1997State Public Notification received1 linked violation
August 14, 1997State Public Notification received1 linked violation
May 1, 1997State Public Notification received1 linked violation
February 19, 1997State Public Notification received1 linked violation
November 1, 1996State Public Notification received1 linked violation
August 1, 1996State Public Notification received1 linked violation
May 17, 1996State Public Notification received1 linked violation
February 16, 1996State Public Notification received1 linked violation
November 17, 1995State Public Notification received1 linked violation
October 18, 1995State Public Notification received1 linked violation
August 17, 1995State Public Notification received1 linked violation
May 15, 1995State Public Notification received1 linked violation
March 22, 1995State Public Notification received1 linked violation
August 19, 1994State Public Notification received1 linked violation
May 13, 1994State Public Notification received2 linked violations
February 1, 1994State Public Notification received1 linked violation
February 18, 1993State Public Notification received2 linked violations
November 1, 1992State Public Notification received3 linked violations
March 20, 1992State Public Notification requested2 linked violations
March 20, 1992State Violation/Reminder Notice2 linked violations
February 1, 1992State Public Notification received2 linked violations
August 1, 1991State Public Notification received2 linked violations
May 1, 1991State Public Notification received2 linked violations
February 1, 1991State Public Notification received2 linked violations
November 1, 1990State Public Notification received3 linked violations
August 18, 1990State Administrative/Compliance Order without penalty issued2 linked violations
August 14, 1990State Compliance achieved2 linked violations
August 1, 1990State Public Notification received2 linked violations
May 1, 1990State Public Notification received3 linked violations
November 2, 1989State Public Notification received3 linked violations
February 2, 1989State Public Notification received2 linked violations
November 1, 1988State Public Notification received2 linked violations

Contact

THREEWITT, SCOTT R

815-436-3577

PLAINFIELD, IL 60544