MT CARROLL, IL · Carroll County
MOUNT CARROLL Water System
Consumer Confidence Report status
MOUNT CARROLL 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 MOUNT CARROLL.
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)
- IL0150200
- System type
- Community Water System
- Population served
- 1,479
- Service connections
- 855
- Ownership
- local government
- Water source
- groundwater (wells)
MOUNT CARROLL is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 1,479 people from groundwater.
As of August 1, 2026, its federal record holds 10 entries between 1977 and 2000, all of which EPA lists as closed. Nothing has been added since 2000.
Of the 10, 8 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 Radionuclides and Revised Rad Rule.
Violation history
Monitoring, Regular
—Combined Radium (-226 and -228)
October 1, 2000 – December 31, 2000
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
July 1, 2000 – September 30, 2000
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
July 1, 2000 – September 30, 2000
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
July 1, 1999 – September 30, 1999
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
July 1, 1999 – September 30, 1999
ArchivedMonitoring, Regular
—Combined Radium (-226 and -228)
October 1, 1998 – December 31, 1998
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1998 – December 31, 1998
ArchivedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
December 3, 1997 – September 11, 1998
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
June 22, 1990 – August 5, 1991
ResolvedMonitoring, 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, 2000 – December 31, 2000 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| July 1, 2000 – September 30, 2000 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| July 1, 2000 – September 30, 2000 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| July 1, 1999 – September 30, 1999 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Archived |
| July 1, 1999 – September 30, 1999 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| October 1, 1998 – December 31, 1998 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Archived |
| October 1, 1998 – December 31, 1998 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| December 3, 1997 – September 11, 1998 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| June 22, 1990 – August 5, 1991 | 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 stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- October 20, 2020State Public Notification received1 linked violation
- November 25, 2019State Compliance achieved1 linked violation
- October 11, 2019State Public Notification requested1 linked violation
- October 11, 2019State Violation/Reminder Notice1 linked violation
- July 25, 2005State Public Notification received1 linked violation
- July 8, 2005State Violation/Reminder Notice1 linked violation
- July 8, 2005State Public Notification requested1 linked violation
- May 26, 2005State Public Notification received1 linked violation
- May 26, 2005State Compliance achieved2 linked violations
- April 19, 2005State Compliance achieved5 linked violations
- April 18, 2005State Public Notification received2 linked violations
- April 8, 2005State Public Notification requested1 linked violation
- April 8, 2005State Violation/Reminder Notice1 linked violation
- March 22, 2005State Violation/Reminder Notice3 linked violations
- February 10, 2005State Public Notification received13 linked violations
- January 7, 2005State Violation/Reminder Notice3 linked violations
- January 7, 2005State Public Notification requested2 linked violations
- October 19, 2004State Public Notification requested2 linked violations
- October 19, 2004State Violation/Reminder Notice3 linked violations
- September 29, 2004State Bilateral Compliance Agreement signed7 linked violations
- September 24, 2004State Public Notification received3 linked violations
- June 24, 2004State Violation/Reminder Notice3 linked violations
- June 24, 2004State Public Notification requested2 linked violations
- April 5, 2001State Public Notification requested4 linked violations
- April 5, 2001State Violation/Reminder Notice4 linked violations
- February 14, 2001State Compliance achieved4 linked violations
- September 11, 1998State Compliance achieved1 linked violation
- December 12, 1997State Public Notification received1 linked violation
- January 21, 1997State Compliance achieved1 linked violation
- August 5, 1991State Compliance achieved1 linked violation
- July 31, 1991State Public Notification received1 linked violation
- July 23, 1991State Public Notification requested1 linked violation
- April 24, 1991State Public Notification requested1 linked violation
- March 29, 1991State Public Notification received1 linked violation
- December 28, 1990State Public Notification received4 linked violations
- December 18, 1990State Public Notification requested2 linked violations
- August 9, 1990State Public Notification received1 linked violation
- July 2, 1990State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- June 30, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- June 30, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- June 23, 1990State Public Notification requested1 linked violation
Common questions
Is MOUNT CARROLL required to publish a Consumer Confidence Report?
- Yes. MOUNT CARROLL 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 MOUNT CARROLL’s next Consumer Confidence Report due?
- MOUNT CARROLL’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MOUNT CARROLL have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for MOUNT CARROLL.
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
BATES, CARL
815-244-4424
MT CARROLL, IL 61053