Is NEPONSET required to publish a Consumer Confidence Report?

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

NEPONSET’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.

NEPONSET, IL · Bureau County

NEPONSET Water System

Consumer Confidence Report status

NEPONSET 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 open health-based violation for NEPONSET, alongside 6 other open items.

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): IL0110700
System type: Community Water System
Population served: 450
Service connections: 185
Ownership: local government
Water source: groundwater (wells)

NEPONSET is one of 1,572 community water systems in Illinois in the 500 or fewer people size category, serving 450 people from groundwater.

As of August 1, 2026, its federal record holds 153 entries between 1977 and 2025, of which 1 health-based item remains open, alongside 6 other open entries.

Of the 153, 38 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, the Public Notice Rule and Revised PN Rule, and volatile organic chemicals.

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
August 22, 2025
Unaddressed
Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2025
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2025
Unaddressed
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2023 – June 18, 2024
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2021 – February 11, 2022
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2017 – July 28, 2017
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
May 1, 2015 – May 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2015 – June 26, 2015
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 2, 2013 – September 16, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2013 – March 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2012 – December 31, 2012
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2012 – August 22, 2012
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2012 – August 22, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2012 – September 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2012 – September 30, 2012
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 13, 2012 – September 24, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2012 – June 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2012 – June 30, 2012
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 18, 2012 – September 24, 2012
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 18, 2012 – September 24, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2012 – March 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2012 – March 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2011 – December 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2011 – December 31, 2011
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 19, 2011 – September 24, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2011 – September 30, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2011 – September 30, 2011
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – August 15, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2011 – June 30, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2011 – June 30, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2011 – March 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2011 – March 31, 2011
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
November 19, 2010
Addressed
Public Notification Violation without NPDWR Violation
—
Public Notice
November 19, 2010
Addressed
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2010 – September 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2010 – September 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2010 – September 30, 2010
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 21, 2010 – June 23, 2010
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
April 21, 2010 – June 23, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2010 – June 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2010 – June 30, 2010
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 2, 2010 – May 28, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2009 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2009 – December 31, 2009
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
July 21, 2009 – September 3, 2009
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 21, 2009 – September 3, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2009 – September 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2009 – September 30, 2009
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
April 15, 2009 – May 18, 2005
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 15, 2009 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2009 – June 30, 2009
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
January 16, 2009 – May 18, 2005
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 16, 2009 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2009 – March 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2009 – March 31, 2009
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
October 12, 2008 – May 18, 2005
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 12, 2008 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2008 – December 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2008 – December 31, 2008
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
July 16, 2008 – May 18, 2005
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 16, 2008 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2008 – September 30, 2008
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 17, 2008 – May 18, 2005
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
April 17, 2008 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2008 – June 30, 2008
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 17, 2008 – May 18, 2005
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
January 17, 2008 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2008 – March 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2008 – March 31, 2008
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
October 17, 2007 – May 18, 2005
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 17, 2007 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2007 – December 31, 2007
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
July 24, 2007 – May 18, 2005
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 24, 2007 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Combined Uranium
July 1, 2007 – September 30, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2007 – September 30, 2007
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
April 25, 2007 – May 18, 2005
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 25, 2007 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2007 – June 30, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2007 – June 30, 2007
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 24, 2007 – May 18, 2005
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
February 24, 2007 – May 18, 2005
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
January 11, 2007 – May 18, 2005
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 11, 2007 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2007 – March 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2007 – March 31, 2007
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
October 9, 2006 – May 18, 2005
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 9, 2006 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2006 – December 31, 2006
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
July 11, 2006 – May 18, 2005
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2006 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2006 – September 30, 2006
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 11, 2006 – May 18, 2005
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
April 11, 2006 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2006 – March 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2005 – December 31, 2005
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2005 – June 28, 2007
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
January 18, 2005 – May 18, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2005 – March 31, 2005
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 9, 2004 – May 18, 2005
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – July 15, 2004
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2004 – June 30, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2004 – June 30, 2004
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 2004 – June 30, 2004
Resolved
Monitoring, Regular
—
Combined Uranium
April 1, 2004 – June 30, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 2001 – June 30, 2001
Resolved
Monitoring, Regular
—
Fluoride
July 1, 1999 – September 30, 1999
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 1999 – June 30, 1999
Archived
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
May 1, 1998 – May 20, 1999
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 1994 – December 5, 1997
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
May 13, 1994 – May 12, 1998
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1993 – December 31, 1993
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1993 – March 31, 1993
Resolved
Monitoring, Regular
—
Toluene
January 1, 1993 – March 31, 1993
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1993 – March 31, 1993
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1993 – March 31, 1993
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1993 – March 31, 1993
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1993 – March 31, 1993
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1992 – September 30, 1992
Archived
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
Toluene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
Tetrachloroethylene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 1992 – September 30, 1992
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1992 – May 31, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1992 – March 31, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1992 – February 29, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1991 – August 31, 1991
Archived
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
August 1, 1991 – August 31, 1991
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1991 – March 31, 1991
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 20, 1990 – July 19, 1994
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmationArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
August 22, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
July 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
July 1, 2025	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
July 1, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Unaddressed
October 17, 2024	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Unaddressed
July 1, 2023 – June 18, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
December 30, 2021 – February 11, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2017 – July 28, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
May 1, 2015 – May 31, 2015	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 2015 – June 26, 2015	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 2, 2013 – September 16, 2013	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2013 – March 31, 2013	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 11, 2012 – August 22, 2012	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 11, 2012 – August 22, 2012	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 13, 2012 – September 24, 2012	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 18, 2012 – September 24, 2012	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 18, 2012 – September 24, 2012	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 19, 2011 – September 24, 2012	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
July 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2011 – August 15, 2011	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2011 – June 30, 2011	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2011 – June 30, 2011	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2011 – March 31, 2011	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2011 – March 31, 2011	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
November 19, 2010	Public Notification Violation for NPDWR Violation	Public Notice	—	Addressed
November 19, 2010	Public Notification Violation without NPDWR Violation	Public Notice	—	Addressed
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
September 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 21, 2010 – June 23, 2010	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 21, 2010 – June 23, 2010	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 2, 2010 – May 28, 2010	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Combined Uranium	—	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 21, 2009 – September 3, 2009	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
July 21, 2009 – September 3, 2009	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 15, 2009 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
April 15, 2009 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 16, 2009 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
January 16, 2009 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2009 – March 31, 2009	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2009 – March 31, 2009	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 12, 2008 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
October 12, 2008 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 16, 2008 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
July 16, 2008 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 17, 2008 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 17, 2008 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 17, 2008 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 17, 2008 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 17, 2007 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
October 17, 2007 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
July 24, 2007 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
July 24, 2007 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Combined Uranium	—	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 25, 2007 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
April 25, 2007 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
February 24, 2007 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
February 24, 2007 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
January 11, 2007 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
January 11, 2007 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 9, 2006 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
October 9, 2006 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
July 11, 2006 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
July 11, 2006 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2006 – September 30, 2006	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 11, 2006 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 11, 2006 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
January 1, 2006 – March 31, 2006	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2005 – June 28, 2007	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 18, 2005 – May 18, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
January 1, 2005 – March 31, 2005	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 9, 2004 – May 18, 2005	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2004 – July 15, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2004 – June 30, 2004	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
April 1, 2004 – June 30, 2004	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2004 – June 30, 2004	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
April 1, 2004 – June 30, 2004	Monitoring, Regular	Combined Uranium	—	Resolved
October 1, 2003 – December 31, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2003 – December 31, 2003	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
April 1, 2001 – June 30, 2001	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 1999 – September 30, 1999	Monitoring, Regular	Fluoride	—	Resolved
April 1, 1999 – June 30, 1999	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
May 1, 1998 – May 20, 1999	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
July 1, 1994 – December 5, 1997	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
May 13, 1994 – May 12, 1998	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
December 1, 1993 – December 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1993 – March 31, 1993	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 1993 – March 31, 1993	Monitoring, Regular	Toluene	—	Resolved
January 1, 1993 – March 31, 1993	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1993 – March 31, 1993	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1993 – March 31, 1993	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1993 – March 31, 1993	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
September 1, 1992 – September 30, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1992 – September 30, 1992	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	Toluene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	Tetrachloroethylene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 1992 – September 30, 1992	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
May 1, 1992 – May 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
March 1, 1992 – March 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
February 1, 1992 – February 29, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1991 – August 31, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 1991 – August 31, 1991	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived
March 1, 1991 – March 31, 1991	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 20, 1990 – July 19, 1994	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

Enforcement actions

September 24, 2025State Violation/Reminder Notice1 linked violation
August 22, 2025State Violation/Reminder Notice1 linked violation
August 22, 2025State Violation/Reminder Notice1 linked violation
July 22, 2025State Public Notification requested1 linked violation
July 22, 2025State Violation/Reminder Notice1 linked violation
July 3, 2025State Public Notification requested1 linked violation
July 3, 2025State Violation/Reminder Notice1 linked violation
June 24, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 13, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 18, 2024State Compliance achieved2 linked violations
December 13, 2023State Violation/Reminder Notice1 linked violation
February 11, 2022State Compliance achieved1 linked violation
July 28, 2017State Compliance achieved1 linked violation
July 17, 2017State Violation/Reminder Notice1 linked violation
May 31, 2016State Public Notification received1 linked violation
May 31, 2016State Public Notification received1 linked violation
June 26, 2015State Compliance achieved2 linked violations
June 11, 2015State Violation/Reminder Notice1 linked violation
June 11, 2015State Violation/Reminder Notice1 linked violation
June 11, 2015State Public Notification requested1 linked violation
June 11, 2015State Public Notification requested1 linked violation
November 1, 2013Federal Compliance achieved71 linked violations
September 16, 2013State Compliance achieved1 linked violation
May 3, 2013State Compliance achieved39 linked violations
April 29, 2013State Public Notification received1 linked violation
April 18, 2013State Violation/Reminder Notice1 linked violation
April 18, 2013State Compliance achieved25 linked violations
April 18, 2013State Public Notification requested1 linked violation
January 31, 2013State Public Notification received2 linked violations
January 16, 2013State Public Notification requested1 linked violation
January 16, 2013State Public Notification received2 linked violations
January 16, 2013State Public Notification requested1 linked violation
January 16, 2013State Violation/Reminder Notice1 linked violation
January 16, 2013State Violation/Reminder Notice1 linked violation
January 4, 2013State Violation/Reminder Notice1 linked violation
October 17, 2012State Violation/Reminder Notice1 linked violation
October 17, 2012State Violation/Reminder Notice1 linked violation
October 17, 2012State Public Notification requested1 linked violation
October 17, 2012State Public Notification requested1 linked violation
October 15, 2012State Public Notification received1 linked violation
September 26, 2012Federal Final Administrative Order issued53 linked violations
September 24, 2012State Compliance achieved5 linked violations
September 24, 2012State Public Notification received8 linked violations
August 22, 2012State Compliance achieved2 linked violations
August 22, 2012State Public Notification received2 linked violations
August 13, 2012State Violation/Reminder Notice1 linked violation
August 13, 2012State Violation/Reminder Notice1 linked violation
August 2, 2012State Public Notification requested1 linked violation
August 2, 2012State Violation/Reminder Notice1 linked violation
August 2, 2012State Violation/Reminder Notice1 linked violation
August 2, 2012State Public Notification requested1 linked violation
May 11, 2012State Violation/Reminder Notice1 linked violation
May 11, 2012State Violation/Reminder Notice1 linked violation
April 11, 2012State Public Notification requested1 linked violation
April 11, 2012State Violation/Reminder Notice1 linked violation
April 11, 2012State Violation/Reminder Notice1 linked violation
April 11, 2012State Public Notification requested1 linked violation
February 15, 2012State Violation/Reminder Notice1 linked violation
February 15, 2012State Violation/Reminder Notice1 linked violation
January 13, 2012State Violation/Reminder Notice1 linked violation
January 13, 2012State Violation/Reminder Notice1 linked violation
January 13, 2012State Public Notification requested1 linked violation
January 13, 2012State Public Notification requested1 linked violation
January 4, 2012Federal Final Administrative Order issued24 linked violations
October 19, 2011State Public Notification requested1 linked violation
October 19, 2011State Public Notification requested1 linked violation
October 19, 2011State Violation/Reminder Notice1 linked violation
October 19, 2011State Violation/Reminder Notice1 linked violation
September 16, 2011State Public Notification received2 linked violations
August 15, 2011State Compliance achieved1 linked violation
August 8, 2011State Violation/Reminder Notice1 linked violation
July 29, 2011State Violation/Reminder Notice1 linked violation
July 20, 2011State Violation/Reminder Notice1 linked violation
July 20, 2011State Public Notification requested1 linked violation
July 20, 2011State Public Notification requested1 linked violation
July 20, 2011State Violation/Reminder Notice1 linked violation
April 19, 2011State Violation/Reminder Notice1 linked violation
April 19, 2011State Public Notification requested1 linked violation
April 19, 2011State Violation/Reminder Notice1 linked violation
April 19, 2011State Public Notification requested1 linked violation
February 16, 2011State Public Notification received2 linked violations
January 21, 2011State Violation/Reminder Notice1 linked violation
January 21, 2011State Violation/Reminder Notice1 linked violation
January 21, 2011State Public Notification requested1 linked violation
January 21, 2011State Public Notification requested1 linked violation
January 14, 2011State Public Notification received2 linked violations
December 29, 2010Federal Final Administrative Order issued22 linked violations
December 10, 2010State Violation/Reminder Notice2 linked violations
October 19, 2010State Violation/Reminder Notice1 linked violation
October 19, 2010State Violation/Reminder Notice1 linked violation
October 19, 2010State Public Notification requested1 linked violation
October 19, 2010State Public Notification requested1 linked violation
October 19, 2010State Violation/Reminder Notice1 linked violation
October 19, 2010State Public Notification requested1 linked violation
October 14, 2010State Public Notification received2 linked violations
October 6, 2010State Compliance achieved1 linked violation
July 15, 2010State Public Notification requested1 linked violation
July 15, 2010State Violation/Reminder Notice1 linked violation
July 15, 2010State Public Notification requested1 linked violation
July 15, 2010State Violation/Reminder Notice1 linked violation
June 23, 2010State Public Notification received2 linked violations
June 23, 2010State Compliance achieved2 linked violations
June 4, 2010State Bilateral Compliance Agreement signed1 linked violation
May 28, 2010State Compliance achieved1 linked violation
May 11, 2010State Violation/Reminder Notice2 linked violations
April 14, 2010State Public Notification requested1 linked violation
April 14, 2010State Public Notification requested1 linked violation
April 14, 2010State Violation/Reminder Notice1 linked violation
April 14, 2010State Violation/Reminder Notice1 linked violation
April 13, 2010State Violation/Reminder Notice1 linked violation
April 13, 2010State Compliance achieved1 linked violation
April 13, 2010State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 13, 2010State Violation/Reminder Notice1 linked violation
April 5, 2010State Formal Notice of Violation issued1 linked violation
January 20, 2010State Public Notification requested1 linked violation
January 20, 2010State Violation/Reminder Notice1 linked violation
January 20, 2010State Public Notification requested1 linked violation
January 20, 2010State Violation/Reminder Notice1 linked violation
January 12, 2010State Violation/Reminder Notice1 linked violation
December 10, 2009State Public Notification received4 linked violations
October 20, 2009State Public Notification requested1 linked violation
October 20, 2009State Public Notification requested1 linked violation
October 20, 2009State Violation/Reminder Notice1 linked violation
October 20, 2009State Violation/Reminder Notice1 linked violation
September 3, 2009State Public Notification received2 linked violations
September 3, 2009State Compliance achieved2 linked violations
August 12, 2009State Violation/Reminder Notice2 linked violations
July 15, 2009State Violation/Reminder Notice1 linked violation
July 15, 2009State Public Notification requested1 linked violation
July 15, 2009State Violation/Reminder Notice1 linked violation
July 15, 2009State Public Notification requested1 linked violation
May 11, 2009State Violation/Reminder Notice2 linked violations
April 21, 2009State Violation/Reminder Notice1 linked violation
April 21, 2009State Public Notification requested1 linked violation
April 21, 2009State Violation/Reminder Notice1 linked violation
April 21, 2009State Public Notification requested1 linked violation
February 9, 2009State Violation/Reminder Notice2 linked violations
January 14, 2009State Violation/Reminder Notice1 linked violation
January 14, 2009State Public Notification requested1 linked violation
January 14, 2009State Violation/Reminder Notice1 linked violation
January 14, 2009State Public Notification requested1 linked violation
November 12, 2008State Violation/Reminder Notice2 linked violations
October 17, 2008State Violation/Reminder Notice1 linked violation
October 17, 2008State Public Notification requested1 linked violation
October 17, 2008State Violation/Reminder Notice1 linked violation
October 17, 2008State Public Notification requested1 linked violation
August 15, 2008State Violation/Reminder Notice2 linked violations
July 17, 2008State Violation/Reminder Notice1 linked violation
July 17, 2008State Public Notification requested1 linked violation
July 17, 2008State Public Notification requested1 linked violation
July 17, 2008State Violation/Reminder Notice1 linked violation
May 21, 2008State Violation/Reminder Notice2 linked violations
April 16, 2008State Public Notification requested1 linked violation
April 16, 2008State Violation/Reminder Notice1 linked violation
April 16, 2008State Public Notification requested1 linked violation
April 16, 2008State Violation/Reminder Notice1 linked violation
February 13, 2008State Violation/Reminder Notice2 linked violations
January 17, 2008State Public Notification requested1 linked violation
January 17, 2008State Violation/Reminder Notice1 linked violation
January 17, 2008State Public Notification requested1 linked violation
January 17, 2008State Violation/Reminder Notice1 linked violation
December 5, 2007Federal Compliance achieved1 linked violation
November 15, 2007State Violation/Reminder Notice2 linked violations
November 14, 2007State Compliance achieved1 linked violation
October 18, 2007State Public Notification requested1 linked violation
October 18, 2007State Violation/Reminder Notice1 linked violation
October 18, 2007State Public Notification requested1 linked violation
October 18, 2007State Violation/Reminder Notice1 linked violation
October 12, 2007State Violation/Reminder Notice1 linked violation
October 12, 2007State Public Notification requested1 linked violation
August 16, 2007State Violation/Reminder Notice2 linked violations
July 18, 2007State Public Notification requested1 linked violation
July 18, 2007State Violation/Reminder Notice1 linked violation
July 18, 2007State Public Notification requested1 linked violation
July 18, 2007State Violation/Reminder Notice1 linked violation
June 28, 2007State Compliance achieved2 linked violations
June 6, 2007Federal Final Administrative Order issued1 linked violation
May 15, 2007State Violation/Reminder Notice2 linked violations
April 24, 2007State Violation/Reminder Notice1 linked violation
April 24, 2007State Public Notification requested1 linked violation
April 24, 2007State Violation/Reminder Notice1 linked violation
April 24, 2007State Public Notification requested1 linked violation
March 13, 2007State Violation/Reminder Notice2 linked violations
March 1, 2007State Compliance achieved1 linked violation
February 16, 2007State Violation/Reminder Notice2 linked violations
January 24, 2007State Public Notification requested1 linked violation
January 24, 2007State Violation/Reminder Notice1 linked violation
January 24, 2007State Public Notification requested1 linked violation
December 22, 2006State Administrative/Compliance Order without penalty issued49 linked violations
December 22, 2006Federal Final Administrative Order issued21 linked violations
November 14, 2006State Violation/Reminder Notice2 linked violations
October 12, 2006State Violation/Reminder Notice1 linked violation
October 12, 2006State Public Notification requested1 linked violation
September 13, 2006State Violation/Reminder Notice1 linked violation
September 13, 2006State Public Notification requested1 linked violation
August 28, 2006State Compliance achieved1 linked violation
August 11, 2006State Violation/Reminder Notice2 linked violations
August 1, 2006State Violation/Reminder Notice1 linked violation
July 20, 2006State Public Notification requested1 linked violation
July 20, 2006State Violation/Reminder Notice1 linked violation
July 10, 2006State Public Notification requested1 linked violation
July 10, 2006State Violation/Reminder Notice1 linked violation
May 11, 2006State Violation/Reminder Notice1 linked violation
May 11, 2006State Violation/Reminder Notice1 linked violation
April 11, 2006State Violation/Reminder Notice1 linked violation
April 11, 2006State Public Notification requested1 linked violation
January 10, 2006State Public Notification requested1 linked violation
January 10, 2006State Violation/Reminder Notice1 linked violation
November 21, 2005State Public Notification received1 linked violation
October 7, 2005State Violation/Reminder Notice1 linked violation
October 7, 2005State Public Notification requested1 linked violation
September 14, 2005State Violation/Reminder Notice2 linked violations
August 25, 2005State Bilateral Compliance Agreement signed43 linked violations
August 15, 2005State Public Notification received1 linked violation
August 15, 2005State Violation/Reminder Notice1 linked violation
July 8, 2005State Violation/Reminder Notice1 linked violation
July 8, 2005State Public Notification requested1 linked violation
May 18, 2005State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 18, 2005State Intentional no-action42 linked violations
May 16, 2005State Violation/Reminder Notice2 linked violations
April 15, 2005State Public Notification received2 linked violations
April 8, 2005State Public Notification requested2 linked violations
April 8, 2005State Violation/Reminder Notice2 linked violations
March 22, 2005State Compliance achieved2 linked violations
February 24, 2005State Formal Notice of Violation issued42 linked violations
February 18, 2005State Bilateral Compliance Agreement signed1 linked violation
January 15, 2005State Compliance achieved1 linked violation
December 15, 2004State Violation/Reminder Notice2 linked violations
October 19, 2004State Public Notification requested1 linked violation
September 30, 2003State Violation/Reminder Notice1 linked violation
September 30, 2003State Public Notification requested1 linked violation
April 10, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
March 11, 2003State Formal Notice of Violation issued6 linked violations
January 10, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 10, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 13, 2002State Public Notification requested2 linked violations
August 13, 2002State Violation/Reminder Notice2 linked violations
July 30, 2002State Bilateral Compliance Agreement signedgeneral compliance action — not tied to a specific violation on record
July 15, 2002State Compliance achieved6 linked violations
May 2, 2002State Violation/Reminder Notice2 linked violations
May 2, 2002State Public Notification requested4 linked violations
February 8, 2002State Violation/Reminder Notice2 linked violations
February 8, 2002State Public Notification requested2 linked violations
November 21, 2001State Bilateral Compliance Agreement signed2 linked violations
October 1, 2001State Violation/Reminder Notice2 linked violations
October 1, 2001State Violation/Reminder Notice1 linked violation
October 1, 2001State Public Notification requested2 linked violations
July 16, 2001State Compliance achieved2 linked violations
February 22, 2000State Compliance achieved1 linked violation
October 25, 1999State Public Notification requested1 linked violation
October 25, 1999State Violation/Reminder Notice1 linked violation
May 20, 1999State Compliance achieved2 linked violations
April 6, 1998State Public Notification received1 linked violation
December 2, 1997State Compliance achieved2 linked violations
May 6, 1997State Public Notification received2 linked violations
December 23, 1996State Public Notification received2 linked violations
October 9, 1995State Public Notification received2 linked violations
August 21, 1995State Public Notification received1 linked violation
October 3, 1994State Compliance achieved34 linked violations
January 22, 1994State Public Notification requested1 linked violation
January 22, 1994State Public Notification requested1 linked violation
January 22, 1994State Violation/Reminder Notice1 linked violation
April 20, 1993State Public Notification requested17 linked violations
April 20, 1993State Violation/Reminder Notice17 linked violations
February 3, 1993State Bilateral Compliance Agreement signed24 linked violations
January 7, 1993State Compliance Meeting conducted23 linked violations
December 26, 1992State Public Notification requested1 linked violation
December 26, 1992State Violation/Reminder Notice1 linked violation
November 28, 1992State Public Notification requested1 linked violation
November 28, 1992State Violation/Reminder Notice1 linked violation
November 24, 1992State Formal Notice of Violation issued26 linked violations
October 24, 1992State Public Notification requested1 linked violation
October 24, 1992State Violation/Reminder Notice1 linked violation
September 27, 1992State Violation/Reminder Notice1 linked violation
September 27, 1992State Public Notification requested1 linked violation
August 29, 1992State Public Notification requested1 linked violation
August 29, 1992State Violation/Reminder Notice1 linked violation
August 24, 1992State Public Notification requested1 linked violation
July 1, 1992State Violation/Reminder Notice17 linked violations
July 1, 1992State Public Notification requested17 linked violations
June 27, 1992State Violation/Reminder Notice1 linked violation
June 27, 1992State Public Notification requested1 linked violation
May 7, 1992State Public Notification requested1 linked violation
April 24, 1992State Violation/Reminder Notice1 linked violation
March 27, 1992State Violation/Reminder Notice1 linked violation
March 12, 1992State Public Notification requested1 linked violation
December 28, 1991State Violation/Reminder Notice2 linked violations
December 28, 1991State Public Notification requested1 linked violation
September 29, 1991State Public Notification requested3 linked violations
September 29, 1991State Violation/Reminder Notice3 linked violations
August 31, 1991State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
June 1, 1991State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
June 1, 1991State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 25, 1991State Violation/Reminder Notice1 linked violation
September 14, 1990State Hook-up/Extension Ban1 linked violation
October 28, 1989State Violation/Reminder Notice1 linked violation

Common questions

Is NEPONSET required to publish a Consumer Confidence Report?: Yes. NEPONSET 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 NEPONSET’s next Consumer Confidence Report due?: NEPONSET’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does NEPONSET have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 open health-based violation for NEPONSET, alongside 6 other open items.
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

DEV, AMY J

309-594-2201

NEPONSET, IL 61345