CHENOA, IL · McLean County
CHENOA Water System
Consumer Confidence Report status
CHENOA 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 1 item for CHENOA that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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)
- IL1130300
- System type
- Community Water System
- Population served
- 1,785
- Service connections
- 850
- Ownership
- local government
- Water source
- groundwater (wells)
CHENOA is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 1,785 people from groundwater.
As of August 1, 2026, its federal record holds 24 entries between 1977 and 2025, of which 1 remains open; none are health-based.
Of the 24, 11 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 the Stage 2 Disinfectants and Disinfection Byproducts Rule, the Lead and Copper Rule, and the Radionuclides and Revised Rad Rule.
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
July 1, 2025 – September 30, 2025
ResolvedMonitoring and Reporting (DBP)
—TTHM
July 1, 2025 – September 30, 2025
ResolvedLead Consumer Notice
—Lead and Copper Rule
April 1, 2025
UnaddressedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2025 – March 31, 2025
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2025 – March 31, 2025
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
January 1, 2024 – June 26, 2024
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
October 1, 2023 – December 31, 2023
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
July 1, 2023 – September 30, 2023
ResolvedOCCT/SOWT Study/Recommendation
Health-basedLead and Copper Rule
April 2, 2023 – February 14, 2024
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
April 1, 2023 – June 30, 2023
ResolvedPublic Education
Health-basedLead and Copper Rule
March 1, 2023 – December 20, 2024
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
January 1, 2023 – March 31, 2023
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
October 1, 2022 – December 31, 2022
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
July 1, 2020 – September 30, 2020
ResolvedLead Service Line Replacement (LSLR)
Health-basedLead and Copper Rule
October 1, 2019 – October 31, 2019
ResolvedMonitoring and Reporting (DBP)
—Chlorine
July 1, 2013 – September 30, 2013
ResolvedMonitoring and Reporting (DBP)
—Chlorine
April 1, 2008 – June 30, 2008
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
January 1, 2006 – June 30, 2006
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
May 1, 1987 – April 30, 1991
ResolvedMaximum Contaminant Level Violation, Average
Health-basedFluoride
May 1, 1985 – November 14, 1985
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
May 1, 1983 – April 30, 1987
ResolvedMaximum Contaminant Level Violation, Average
Health-basedFluoride
May 1, 1982 – April 30, 1985
ArchivedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
May 22, 1979 – May 21, 1983
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2025 – September 30, 2025 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| July 1, 2025 – September 30, 2025 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| April 1, 2025 | Lead Consumer Notice | Lead and Copper Rule | — | Unaddressed |
| January 1, 2025 – March 31, 2025 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2025 – March 31, 2025 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2024 – June 26, 2024 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| October 1, 2023 – December 31, 2023 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| July 1, 2023 – September 30, 2023 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| April 2, 2023 – February 14, 2024 | OCCT/SOWT Study/Recommendation | Lead and Copper Rule | Health-based | Resolved |
| April 1, 2023 – June 30, 2023 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| March 1, 2023 – December 20, 2024 | Public Education | Lead and Copper Rule | Health-based | Resolved |
| January 1, 2023 – March 31, 2023 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| October 1, 2022 – December 31, 2022 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| July 1, 2020 – September 30, 2020 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| October 1, 2019 – October 31, 2019 | Lead Service Line Replacement (LSLR) | Lead and Copper Rule | Health-based | Resolved |
| July 1, 2013 – September 30, 2013 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| April 1, 2008 – June 30, 2008 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| January 1, 2006 – June 30, 2006 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| May 1, 1987 – April 30, 1991 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| May 1, 1985 – November 14, 1985 | Maximum Contaminant Level Violation, Average | Fluoride | Health-based | Resolved |
| May 1, 1983 – April 30, 1987 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| May 1, 1982 – April 30, 1985 | Maximum Contaminant Level Violation, Average | Fluoride | Health-based | Archived |
| May 22, 1979 – May 21, 1983 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| June 30, 1977 – June 29, 1981 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- December 26, 2025State Compliance achieved2 linked violations
- October 14, 2025State Public Notification requested2 linked violations
- October 14, 2025State Violation/Reminder Notice2 linked violations
- July 28, 2025State Public Notification received2 linked violations
- July 16, 2025State Violation/Reminder Notice1 linked violation
- June 30, 2025State Compliance achieved2 linked violations
- April 13, 2025State Public Notification requested2 linked violations
- April 13, 2025State Violation/Reminder Notice2 linked violations
- December 20, 2024State Compliance achieved2 linked violations
- June 26, 2024State Compliance achieved1 linked violation
- March 29, 2024State Public Notification received1 linked violation
- March 26, 2024State Compliance achieved5 linked violations
- February 14, 2024State Compliance achieved1 linked violation
- January 16, 2024State Public Notification requested3 linked violations
- January 16, 2024State Violation/Reminder Notice1 linked violation
- January 2, 2024State Public Notification requested1 linked violation
- November 22, 2023State Public Notification received2 linked violations
- October 2, 2023State Violation/Reminder Notice2 linked violations
- October 2, 2023State Public Notification received2 linked violations
- June 24, 2023State Public Notification requested2 linked violations
- June 24, 2023State Violation/Reminder Notice2 linked violations
- May 17, 2023State Administrative/Compliance Order without penalty issued1 linked violation
- May 17, 2023State Bilateral Compliance Agreement signed6 linked violations
- May 17, 2023State Administrative/Compliance Order without penalty issued2 linked violations
- May 17, 2023State Administrative/Compliance Order without penalty issued2 linked violations
- May 17, 2023State Administrative/Compliance Order without penalty issued1 linked violation
- April 17, 2023State Public Notification requested2 linked violations
- April 17, 2023State Public Notification requested2 linked violations
- April 17, 2023State Violation/Reminder Notice1 linked violation
- March 31, 2023State Public Notification requested1 linked violation
- March 31, 2023State Violation/Reminder Notice2 linked violations
- February 15, 2023State Formal Notice of Violation issued6 linked violations
- January 3, 2023State Public Notification requested2 linked violations
- October 31, 2019State Compliance achieved2 linked violations
- October 7, 2019State Violation/Reminder Notice1 linked violation
- January 8, 2016State Violation/Reminder Notice2 linked violations
- August 12, 2009State Violation/Reminder Notice2 linked violations
- August 5, 2009State Public Notification received2 linked violations
- July 29, 2008State Compliance achieved2 linked violations
- July 17, 2008State Public Notification requested2 linked violations
- July 16, 2008State Violation/Reminder Notice2 linked violations
- July 12, 2006State Compliance achieved2 linked violations
- July 11, 2006State Violation/Reminder Notice1 linked violation
- April 22, 1993State Compliance achieved4 linked violations
- January 15, 1993State Public Notification received1 linked violation
- June 26, 1992State Public Notification received1 linked violation
- April 6, 1992State Public Notification received1 linked violation
- December 31, 1991State Public Notification received1 linked violation
- September 30, 1991State Public Notification received1 linked violation
- May 24, 1991State Public Notification received1 linked violation
- March 18, 1991State Public Notification received1 linked violation
- October 16, 1990State Public Notification requested2 linked violations
- April 17, 1990State Public Notification requested2 linked violations
- March 15, 1990State Public Notification received1 linked violation
- January 11, 1990State Administrative/Compliance Order without penalty issued1 linked violation
- October 16, 1989State Public Notification received1 linked violation
- November 14, 1985State Compliance achieved1 linked violation
Common questions
Is CHENOA required to publish a Consumer Confidence Report?
- Yes. CHENOA 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 CHENOA’s next Consumer Confidence Report due?
- CHENOA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CHENOA have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for CHENOA that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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
SHANE, DAVID
309-825-2396
CHENOA, IL 61726