OTTAWA, IL · LaSalle County
OTTAWA Water System
Consumer Confidence Report status
OTTAWA 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 OTTAWA 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)
- IL0990800
- System type
- Community Water System
- Population served
- 18,097
- Service connections
- 8,049
- Ownership
- local government
- Water source
- groundwater (wells)
OTTAWA is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 18,097 people from groundwater.
As of August 1, 2026, its federal record holds 61 entries between 1977 and 2025, of which 1 remains open; none are health-based.
Of the 61, 48 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 volatile organic chemicals, the Radionuclides and Revised Rad Rule, and the Lead and Copper Rule.
Violation history
Monitoring and Reporting (DBP)
—TTHM
October 1, 2025 – December 31, 2025
ResolvedNotification, Known or Potential LSL
—LEAD AND COPPER RULE REVISIONS
July 2, 2025
UnaddressedMonitoring, Regular
—Combined Radium (-226 and -228)
October 1, 2022 – December 31, 2022
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
July 1, 2022 – September 30, 2022
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2022 – December 31, 2022
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2022 – December 31, 2022
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Toluene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Styrene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Benzene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Toluene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2020 – December 31, 2022
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
November 1, 2018 – October 31, 2019
ResolvedMonitoring and Reporting (DBP)
—TTHM
November 1, 2018 – October 31, 2019
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2014 – March 31, 2014
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 2011 – October 31, 2011
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
July 1, 2011 – September 30, 2011
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
June 1, 2009 – June 30, 2009
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
April 1, 2003 – June 30, 2003
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
January 1, 2003 – March 31, 2003
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
October 1, 2002 – December 31, 2002
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
October 1, 2001 – September 30, 2002
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 2001 – September 30, 2001
ArchivedWater Quality Parameter M/R
—Lead and Copper Rule
July 1, 2000 – September 30, 2000
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
April 1, 1999 – June 30, 1999
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
April 1, 1999 – June 30, 1999
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
July 1, 1998 – April 19, 1999
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
January 1, 1998 – June 30, 1998
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
October 1, 1997 – September 30, 2001
ResolvedMonitoring, Repeat Minor (TCR)
—Coliform (TCR)
June 1, 1993 – June 30, 1993
ArchivedMaximum Contaminant Level Violation, Acute (TCR)
Health-basedColiform (TCR)
June 1, 1993 – June 30, 1993
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
June 1, 1993 – June 30, 1993
ArchivedOCCT/SOWT Study/Recommendation
Health-basedLead and Copper Rule
December 7, 1992 – January 28, 1994
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
October 1, 1992 – March 31, 1993
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
April 1, 1992 – September 30, 1992
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
November 1, 1989 – September 30, 1993
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
October 1, 1989 – September 30, 1993
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 |
|---|---|---|---|---|
| October 1, 2025 – December 31, 2025 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| July 2, 2025 | Notification, Known or Potential LSL | LEAD AND COPPER RULE REVISIONS | — | Unaddressed |
| October 1, 2022 – December 31, 2022 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| July 1, 2022 – September 30, 2022 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| January 1, 2022 – December 31, 2022 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2022 – December 31, 2022 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| November 1, 2018 – October 31, 2019 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| November 1, 2018 – October 31, 2019 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2014 – March 31, 2014 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| October 1, 2011 – October 31, 2011 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| July 1, 2011 – September 30, 2011 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| June 1, 2009 – June 30, 2009 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| April 1, 2003 – June 30, 2003 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| January 1, 2003 – March 31, 2003 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| October 1, 2002 – December 31, 2002 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| October 1, 2001 – September 30, 2002 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| September 1, 2001 – September 30, 2001 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| July 1, 2000 – September 30, 2000 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| April 1, 1999 – June 30, 1999 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| April 1, 1999 – June 30, 1999 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| July 1, 1998 – April 19, 1999 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 1998 – June 30, 1998 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| October 1, 1997 – September 30, 2001 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| June 1, 1993 – June 30, 1993 | Monitoring, Repeat Minor (TCR) | Coliform (TCR) | — | Archived |
| June 1, 1993 – June 30, 1993 | Maximum Contaminant Level Violation, Acute (TCR) | Coliform (TCR) | Health-based | Archived |
| June 1, 1993 – June 30, 1993 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| December 7, 1992 – January 28, 1994 | OCCT/SOWT Study/Recommendation | Lead and Copper Rule | Health-based | Resolved |
| October 1, 1992 – March 31, 1993 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| April 1, 1992 – September 30, 1992 | Water Quality Parameter M/R | Lead and Copper Rule | — | Resolved |
| November 1, 1989 – September 30, 1993 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| October 1, 1989 – September 30, 1993 | 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
- January 21, 2026State Compliance achieved2 linked violations
- January 13, 2026State Public Notification requested2 linked violations
- January 13, 2026State Violation/Reminder Notice2 linked violations
- July 3, 2025State Public Notification requested1 linked violation
- July 3, 2025State Violation/Reminder Notice1 linked violation
- October 22, 2024State Compliance achieved4 linked violations
- May 20, 2024State Administrative/Compliance Order without penalty issued3 linked violations
- May 10, 2024State Public Notification received2 linked violations
- March 18, 2024State Formal Notice of Violation issued3 linked violations
- January 12, 2024State Public Notification requested2 linked violations
- January 12, 2024State Violation/Reminder Notice2 linked violations
- November 28, 2023State Compliance achieved1 linked violation
- November 8, 2023State Public Notification received1 linked violation
- November 2, 2023State Compliance achieved21 linked violations
- October 2, 2023State Violation/Reminder Notice1 linked violation
- October 2, 2023State Public Notification requested1 linked violation
- June 28, 2023State Compliance achieved21 linked violations
- May 19, 2023State Public Notification received1 linked violation
- May 9, 2023State Public Notification received1 linked violation
- May 9, 2023State Public Notification received1 linked violation
- May 9, 2023State Public Notification received1 linked violation
- May 9, 2023State Public Notification received1 linked violation
- May 9, 2023State Public Notification received1 linked violation
- May 9, 2023State Public Notification received2 linked violations
- May 9, 2023State Public Notification received2 linked violations
- May 9, 2023State Public Notification received2 linked violations
- May 9, 2023State Public Notification received4 linked violations
- May 9, 2023State Public Notification received2 linked violations
- May 9, 2023State Public Notification received21 linked violations
- May 9, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- May 9, 2023State Public Notification received2 linked violations
- May 9, 2023State Public Notification received1 linked violation
- May 9, 2023State Public Notification received1 linked violation
- May 9, 2023State Public Notification received2 linked violations
- February 10, 2023State Public Notification requested1 linked violation
- February 10, 2023State Compliance achieved1 linked violation
- February 10, 2023State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- February 10, 2023State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- February 10, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice1 linked violation
- February 3, 2023State Public Notification requested1 linked violation
- February 3, 2023State Violation/Reminder Notice20 linked violations
- February 3, 2023State Public Notification requested20 linked violations
- February 3, 2023State Violation/Reminder Notice2 linked violations
- February 3, 2023State Public Notification requested2 linked violations
- October 27, 2022State Compliance achieved1 linked violation
- October 18, 2022State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- October 18, 2022State Violation/Reminder Notice1 linked violation
- November 17, 2020State Compliance achieved2 linked violations
- June 22, 2020State Public Notification received2 linked violations
- January 13, 2020State Public Notification requested2 linked violations
- January 13, 2020State Violation/Reminder Notice2 linked violations
- May 24, 2019State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- February 22, 2019State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- January 11, 2019State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 11, 2019State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- April 23, 2014State Compliance achieved1 linked violation
- April 15, 2014State Violation/Reminder Notice1 linked violation
- December 14, 2011State Public Notification received1 linked violation
- November 22, 2011State Compliance achieved1 linked violation
- November 15, 2011State Violation/Reminder Notice1 linked violation
- November 15, 2011State Public Notification requested1 linked violation
- October 27, 2011State Compliance achieved1 linked violation
- October 14, 2011State Violation/Reminder Notice1 linked violation
- January 1, 2010State Compliance achieved1 linked violation
- August 21, 2009State Public Notification received1 linked violation
- July 14, 2009State Violation/Reminder Notice1 linked violation
- July 14, 2009State Public Notification requested1 linked violation
- April 10, 2003State Public Notification requested1 linked violation
- April 10, 2003State Violation/Reminder Notice1 linked violation
- March 31, 2003State Public Notification received1 linked violation
- January 10, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 10, 2003State Public Notification requested1 linked violation
- January 10, 2003State Violation/Reminder Notice1 linked violation
- January 10, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- June 30, 2002State Compliance achieved1 linked violation
- March 31, 2001State Compliance achieved1 linked violation
- June 30, 2000State Compliance achieved2 linked violations
- September 13, 1999State Compliance achieved2 linked violations
- July 26, 1999State Public Notification requested1 linked violation
- July 26, 1999State Violation/Reminder Notice1 linked violation
- July 26, 1999State Violation/Reminder Notice1 linked violation
- July 26, 1999State Public Notification requested1 linked violation
- April 19, 1999State Compliance achieved2 linked violations
- March 11, 1998State Public Notification received1 linked violation
- November 26, 1997State Public Notification received1 linked violation
- July 23, 1997State Public Notification received1 linked violation
- June 23, 1997State Public Notification received1 linked violation
- May 14, 1997State Public Notification received1 linked violation
- February 20, 1997State Public Notification received1 linked violation
- February 12, 1997State Public Notification received1 linked violation
- December 10, 1996State Public Notification received1 linked violation
- December 4, 1996State Public Notification received1 linked violation
- September 18, 1996State Public Notification received1 linked violation
- June 19, 1996State Public Notification received1 linked violation
- February 21, 1996State Public Notification received1 linked violation
- August 23, 1995State Public Notification received1 linked violation
- May 31, 1995State Public Notification received1 linked violation
- March 1, 1995State Public Notification received1 linked violation
- December 7, 1994State Public Notification received1 linked violation
- September 21, 1994State Public Notification received1 linked violation
- May 11, 1994State Public Notification received1 linked violation
- January 28, 1994State Compliance achieved1 linked violation
- January 19, 1994State Public Notification received1 linked violation
- January 19, 1994State Public Notification received4 linked violations
- October 13, 1993State Public Notification received2 linked violations
- August 7, 1993State Violation/Reminder Notice3 linked violations
- August 7, 1993State Public Notification requested3 linked violations
- July 21, 1993State Public Notification received2 linked violations
- May 7, 1993State Public Notification received2 linked violations
- April 28, 1993State Public Notification received2 linked violations
- February 10, 1993State Public Notification received2 linked violations
- August 24, 1992State Public Notification received2 linked violations
- June 4, 1992State Public Notification received2 linked violations
- June 3, 1992State Public Notification received2 linked violations
- May 7, 1992State Public Notification requested2 linked violations
- July 26, 1991State Public Notification received2 linked violations
- December 26, 1990State Public Notification received3 linked violations
- December 18, 1990State Public Notification requested4 linked violations
- November 8, 1990State Administrative/Compliance Order without penalty issued2 linked violations
- August 21, 1990State Public Notification received2 linked violations
- May 9, 1990State Public Notification received2 linked violations
- April 17, 1990State Public Notification requested3 linked violations
- January 3, 1990State Public Notification received2 linked violations
- December 13, 1989State Public Notification requested3 linked violations
- January 6, 1989State Public Notification requested2 linked violations
Common questions
Is OTTAWA required to publish a Consumer Confidence Report?
- Yes. OTTAWA 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 OTTAWA’s next Consumer Confidence Report due?
- OTTAWA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does OTTAWA have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for OTTAWA 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
DUTTLINGER, THOMAS A.
815-433-0161
OTTAWA, IL 61350