MATTOON, IL · Coles County

MATTOON 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): IL0290250
System type: Community Water System
Population served: 19,500
Service connections: 8,000
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2001 – July 23, 2001
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 1996 – October 31, 1996
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
January 1, 1996 – January 31, 1996
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1995 – August 31, 1995
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 1995 – June 30, 1995
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 1994 – December 31, 1994
Archived
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 1994 – June 1, 1995
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 1994 – September 30, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 1994 – July 31, 1994
Archived
Monitoring, Regular
—
Arsenic
June 25, 1979 – June 24, 1980
Archived
Monitoring, Regular
—
Barium
June 25, 1979 – June 24, 1980
Archived
Monitoring, Regular
—
Cadmium
June 25, 1979 – June 24, 1980
Archived
Monitoring, Regular
—
Chromium
June 25, 1979 – June 24, 1980
Archived
Monitoring, Regular
—
Fluoride
June 25, 1979 – June 24, 1980
Archived
Monitoring, Regular
—
Mercury
June 25, 1979 – June 24, 1980
Archived
Monitoring, Regular
—
Nitrate
June 25, 1979 – June 24, 1980
Archived
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, 2001 – July 23, 2001	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 1996 – October 31, 1996	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
January 1, 1996 – January 31, 1996	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
August 1, 1995 – August 31, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
June 1, 1995 – June 30, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
December 1, 1994 – December 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
October 1, 1994 – June 1, 1995	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
September 1, 1994 – September 30, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
July 1, 1994 – July 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
June 25, 1979 – June 24, 1980	Monitoring, Regular	Arsenic	—	Archived
June 25, 1979 – June 24, 1980	Monitoring, Regular	Barium	—	Archived
June 25, 1979 – June 24, 1980	Monitoring, Regular	Cadmium	—	Archived
June 25, 1979 – June 24, 1980	Monitoring, Regular	Chromium	—	Archived
June 25, 1979 – June 24, 1980	Monitoring, Regular	Fluoride	—	Archived
June 25, 1979 – June 24, 1980	Monitoring, Regular	Mercury	—	Archived
June 25, 1979 – June 24, 1980	Monitoring, Regular	Nitrate	—	Archived
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

May 24, 2024State Compliance achieved2 linked violations
July 11, 2023State Public Notification requested3 linked violations
July 20, 2010State Compliance achieved3 linked violations
July 16, 2010State Violation/Reminder Notice2 linked violations
July 16, 2010State Violation/Reminder Notice3 linked violations
April 12, 2007State Compliance achieved2 linked violations
July 23, 2001State Compliance achieved1 linked violation
February 25, 1999State Violation/Reminder Notice1 linked violation
February 25, 1999State Public Notification requested1 linked violation
January 6, 1999State Public Notification received1 linked violation
April 16, 1998State Public Notification requested2 linked violations
April 16, 1998State Violation/Reminder Notice2 linked violations
January 13, 1997State Violation/Reminder Notice2 linked violations
January 13, 1997State Public Notification requested2 linked violations
January 10, 1997State Public Notification received1 linked violation
December 11, 1996State Public Notification received1 linked violation
December 6, 1996State Public Notification requested1 linked violation
December 6, 1996State Violation/Reminder Notice1 linked violation
November 8, 1996State Public Notification received1 linked violation
February 22, 1996State Public Notification requested1 linked violation
February 22, 1996State Violation/Reminder Notice1 linked violation
February 9, 1996State Public Notification received1 linked violation
October 2, 1995State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 2, 1995State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 5, 1995State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 17, 1995State Violation/Reminder Notice1 linked violation
July 17, 1995State Public Notification requested1 linked violation
July 7, 1995State Public Notification received1 linked violation
June 1, 1995State Compliance achieved1 linked violation
January 26, 1995State Violation/Reminder Notice1 linked violation
January 26, 1995State Public Notification requested1 linked violation
January 17, 1995State Public Notification received1 linked violation
October 31, 1994State Violation/Reminder Notice1 linked violation
October 31, 1994State Public Notification requested1 linked violation
October 17, 1994State Public Notification received1 linked violation
August 26, 1994State Public Notification requested1 linked violation
August 26, 1994State Violation/Reminder Notice1 linked violation

Contact

CLARK, DAVID

217-235-5460

MATTOON, IL 61938