Is CAMBRIDGE required to publish a Consumer Confidence Report?

Yes. CAMBRIDGE 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 CAMBRIDGE’s next Consumer Confidence Report due?

CAMBRIDGE’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.

CAMBRIDGE, IL · Henry County

CAMBRIDGE Water System

Consumer Confidence Report status

CAMBRIDGE 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 CAMBRIDGE.

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): IL0730300
System type: Community Water System
Population served: 2,086
Service connections: 911
Ownership: local government
Water source: groundwater (wells)

CAMBRIDGE is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 2,086 people from groundwater.

As of August 1, 2026, its federal record holds 7 entries between 1984 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.

None of the 7 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Radionuclides and Revised Rad Rule.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2016 – June 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2016 – March 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
November 9, 1995 – April 9, 1996
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
May 1, 1990 – March 15, 1991
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 1988 – March 31, 1992
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
May 29, 1986 – May 28, 1990
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 16, 1984 – April 15, 1988
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
November 9, 1995 – April 9, 1996	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
May 1, 1990 – March 15, 1991	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 1988 – March 31, 1992	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
May 29, 1986 – May 28, 1990	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 16, 1984 – April 15, 1988	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

December 27, 2016State Public Notification received1 linked violation
November 7, 2016State Compliance achieved4 linked violations
October 28, 2016Federal Final Administrative Order issued4 linked violations
October 28, 2016State Administrative/Compliance Order without penalty issued4 linked violations
October 13, 2016State Public Notification requested1 linked violation
October 13, 2016State Violation/Reminder Notice1 linked violation
October 11, 2016State Public Notification received1 linked violation
October 7, 2016State Compliance achieved1 linked violation
September 12, 2016State Violation/Reminder Notice1 linked violation
July 22, 2016State Public Notification received1 linked violation
May 20, 2016State Public Notification requested1 linked violation
May 20, 2016State Violation/Reminder Notice1 linked violation
April 12, 2016State Public Notification requested1 linked violation
April 12, 2016State Violation/Reminder Notice1 linked violation
February 4, 2016State Formal Notice of Violation issued4 linked violations
February 3, 2016State Public Notification received60 linked violations
January 14, 2016State Public Notification requested1 linked violation
October 30, 2012State Compliance achieved9 linked violations
October 12, 2012State Violation/Reminder Notice1 linked violation
June 1, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
April 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 18, 2004State Bilateral Compliance Agreement signed2 linked violations
January 10, 2004State Public Notification requested2 linked violations
April 9, 1996State Compliance achieved1 linked violation
January 10, 1996State Public Notification received1 linked violation
December 18, 1995State Compliance achieved1 linked violation
November 22, 1995State Public Notification received1 linked violation
October 11, 1995State Public Notification received1 linked violation
July 12, 1995State Public Notification received1 linked violation
June 15, 1995State Public Notification received1 linked violation
March 18, 1993State Compliance achieved3 linked violations
February 6, 1993State Public Notification received1 linked violation
November 11, 1992State Public Notification received1 linked violation
September 8, 1992State Public Notification received1 linked violation
June 4, 1992State Public Notification received1 linked violation
February 24, 1992State Public Notification received1 linked violation
August 7, 1991State Public Notification received1 linked violation
February 14, 1991State Public Notification received2 linked violations
November 20, 1990State Public Notification received2 linked violations
May 11, 1990State Public Notification received2 linked violations
February 7, 1990State Public Notification received4 linked violations
August 11, 1989State Public Notification received2 linked violations
February 3, 1989State Public Notification requested2 linked violations

Common questions

Is CAMBRIDGE required to publish a Consumer Confidence Report?: Yes. CAMBRIDGE 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 CAMBRIDGE’s next Consumer Confidence Report due?: CAMBRIDGE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CAMBRIDGE have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for CAMBRIDGE.
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

BROWN, STEVEN C.

309-937-2626

CAMBRIDGE, IL 61238