MATHERVILLE, IL · Mercer County

MATHERVILLE 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): IL1310200
System type: Community Water System
Population served: 651
Service connections: 308
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2019 – September 20, 2019
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1998 – September 30, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1998 – April 30, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1996 – September 30, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1996 – August 31, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1995 – November 30, 1995
Archived
Monitoring, Regular
—
Nitrate
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Endothall
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Aldicarb sulfone
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Dalapon
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
LASSO
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Chlordane
January 1, 1995 – March 31, 1995
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
October 1, 1994 – December 31, 1995
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, 2019 – September 20, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
September 1, 1998 – September 30, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1998 – April 30, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
September 1, 1996 – September 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1996 – August 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1995 – November 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1995 – December 31, 1995	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Endothall	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Aldicarb sulfone	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Dalapon	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	LASSO	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Chlordane	—	Resolved
October 1, 1994 – December 31, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	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

June 26, 2020State Public Notification received1 linked violation
September 20, 2019State Compliance achieved1 linked violation
September 16, 2019State Violation/Reminder Notice1 linked violation
September 16, 2019State Public Notification requested1 linked violation
November 15, 1998State Public Notification requested1 linked violation
November 15, 1998State Violation/Reminder Notice1 linked violation
June 27, 1998State Public Notification requested1 linked violation
June 27, 1998State Violation/Reminder Notice1 linked violation
November 30, 1996State Violation/Reminder Notice1 linked violation
November 30, 1996State Public Notification requested1 linked violation
November 13, 1996State Public Notification received1 linked violation
November 2, 1996State Violation/Reminder Notice1 linked violation
November 2, 1996State Public Notification requested1 linked violation
September 29, 1996State Public Notification requested1 linked violation
September 29, 1996State Violation/Reminder Notice1 linked violation
February 27, 1996State Compliance achieved1 linked violation
February 6, 1996State Violation/Reminder Notice1 linked violation
February 6, 1996State Public Notification requested1 linked violation
February 3, 1996State Violation/Reminder Notice1 linked violation
February 3, 1996State Public Notification requested1 linked violation
July 12, 1995State Public Notification received31 linked violations
May 9, 1995State Violation/Reminder Notice31 linked violations
May 9, 1995State Public Notification requested31 linked violations
April 19, 1995State Compliance achieved31 linked violations
October 11, 1992State Public Notification requested2 linked violations
October 1, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 1, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record

Contact

MAYNARD, DAVID L

309-373-5856

MATHERVILLE, IL 61263