DECATUR, IL · Macon County

DECATUR 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): IL1150150
System type: Community Water System
Population served: 76,122
Service connections: 31,407
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring and Reporting (DBP)
—
Chlorite
October 1, 2023 – October 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
April 1, 2002 – June 12, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
April 1, 2001 – June 30, 2001
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
January 1, 2001 – March 31, 2001
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
April 1, 1999 – June 30, 1999
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
April 1, 1998 – June 30, 1998
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
July 1, 1997 – July 9, 1997
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
July 1, 1996 – September 30, 1996
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 1995 – May 31, 1995
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 1994 – June 30, 1994
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 1994 – April 30, 1994
Archived
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
June 11, 1992 – June 25, 1992
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
May 6, 1992 – May 29, 1992
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
January 25, 1991 – May 15, 1991
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
December 14, 1990 – December 27, 1990
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
July 6, 1990 – August 9, 1990
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
June 13, 1990 – June 29, 1990
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
March 8, 1990 – March 23, 1990
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
April 17, 1989 – July 14, 1989
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
January 31, 1985 – June 30, 1985
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
January 4, 1984 – April 30, 1984
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate
May 15, 1981 – June 15, 1981
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
October 1, 2023 – October 31, 2023	Monitoring and Reporting (DBP)	Chlorite	—	Resolved
April 1, 2002 – June 12, 2002	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
April 1, 2001 – June 30, 2001	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
January 1, 2001 – March 31, 2001	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
April 1, 1999 – June 30, 1999	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
April 1, 1998 – June 30, 1998	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
July 1, 1997 – July 9, 1997	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
July 1, 1996 – September 30, 1996	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
May 1, 1995 – May 31, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
June 1, 1994 – June 30, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
April 1, 1994 – April 30, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
June 11, 1992 – June 25, 1992	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
May 6, 1992 – May 29, 1992	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
January 25, 1991 – May 15, 1991	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
December 14, 1990 – December 27, 1990	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
July 6, 1990 – August 9, 1990	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
June 13, 1990 – June 29, 1990	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
March 8, 1990 – March 23, 1990	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
April 17, 1989 – July 14, 1989	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
January 31, 1985 – June 30, 1985	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
January 4, 1984 – April 30, 1984	Maximum Contaminant Level Violation, Average	Nitrate	Health-based	Resolved
May 15, 1981 – June 15, 1981	Maximum Contaminant Level Violation, Average	Nitrate	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

August 16, 2024State Public Notification received1 linked violation
March 1, 2024State Compliance achieved1 linked violation
January 16, 2024State Violation/Reminder Notice1 linked violation
January 16, 2024State Public Notification requested1 linked violation
July 10, 2002State Public Notification requested1 linked violation
July 10, 2002State Violation/Reminder Notice1 linked violation
June 12, 2002State Compliance achieved2 linked violations
March 4, 2002State Public Notification requested2 linked violations
March 4, 2002State Violation/Reminder Notice1 linked violation
June 14, 2001State Violation/Reminder Notice2 linked violations
June 14, 2001State Public Notification requested3 linked violations
July 2, 1999State Compliance achieved1 linked violation
May 5, 1999State Violation/Reminder Notice1 linked violation
May 5, 1999State Public Notification requested1 linked violation
July 1, 1998State Compliance achieved1 linked violation
June 22, 1998State Violation/Reminder Notice1 linked violation
June 22, 1998State Public Notification requested1 linked violation
January 23, 1998State Public Notification received1 linked violation
July 9, 1997State Compliance achieved1 linked violation
July 1, 1997State Public Notification requested1 linked violation
July 1, 1997State Violation/Reminder Notice1 linked violation
March 11, 1997State Public Notification requested1 linked violation
March 11, 1997State Violation/Reminder Notice1 linked violation
March 5, 1997State Public Notification received1 linked violation
September 30, 1996State Compliance achieved2 linked violations
July 3, 1996State Violation/Reminder Notice1 linked violation
July 3, 1996State Public Notification requested1 linked violation
July 1, 1996State Public Notification requested1 linked violation
July 1, 1996State Violation/Reminder Notice1 linked violation
May 3, 1996State Public Notification received1 linked violation
June 12, 1995State Violation/Reminder Notice1 linked violation
June 12, 1995State Public Notification requested1 linked violation
March 24, 1995State Public Notification requested1 linked violation
March 24, 1995State Violation/Reminder Notice1 linked violation
March 5, 1995State Public Notification received1 linked violation
January 30, 1995State Violation/Reminder Notice1 linked violation
January 30, 1995State Public Notification requested1 linked violation
January 1, 1995State Public Notification received1 linked violation
July 8, 1994State Public Notification received2 linked violations
April 27, 1994State Public Notification received1 linked violation
June 25, 1992State Compliance achieved1 linked violation
May 15, 1991State Compliance achieved1 linked violation
December 27, 1990State Compliance achieved1 linked violation
August 9, 1990State Compliance achieved1 linked violation
June 29, 1990State Compliance achieved1 linked violation
March 23, 1990State Compliance achieved1 linked violation
July 14, 1989State Compliance achieved1 linked violation
May 9, 1988State Compliance achieved1 linked violation
September 30, 1985State Public Notification requested47 linked violations
June 30, 1985State Compliance achieved1 linked violation
April 30, 1984State Compliance achieved1 linked violation

Contact

WEIL, ROBERT C.

217-424-2863

DECATUR, IL 62523