Is MATHERVILLE required to publish a Consumer Confidence Report?

Yes. MATHERVILLE is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is MATHERVILLE’s next Consumer Confidence Report due?

MATHERVILLE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

MATHERVILLE, IL · Mercer County

MATHERVILLE Water System

Consumer Confidence Report status

MATHERVILLE must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for MATHERVILLE.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)

MATHERVILLE is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 651 people from groundwater.

As of August 1, 2026, its federal record holds 24 entries between 1977 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.

All 24 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, the Total Coliform Rules, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

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)
November 1, 1995 – November 30, 1995
Archived
Monitoring, Regular
—
Nitrate
October 1, 1995 – December 31, 1995
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Chlordane
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
LASSO
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Dalapon
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
—
Methoxychlor
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Toxaphene
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
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	2,4,5-TP	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Chlordane	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	LASSO	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Dalapon	—	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	Methoxychlor	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Toxaphene	—	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

Common questions

Is MATHERVILLE required to publish a Consumer Confidence Report?: Yes. MATHERVILLE is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is MATHERVILLE’s next Consumer Confidence Report due?: MATHERVILLE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MATHERVILLE have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for MATHERVILLE.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

MAYNARD, DAVID L

309-373-5856

MATHERVILLE, IL 61263