Is YORK TOWNSHIP WATER SYSTEM required to publish a Consumer Confidence Report?

Yes. YORK TOWNSHIP WATER SYSTEM 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 YORK TOWNSHIP WATER SYSTEM’s next Consumer Confidence Report due?

YORK TOWNSHIP WATER SYSTEM’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.

DARIEN, IL · DuPage County

YORK TOWNSHIP WATER SYSTEM Water System

Consumer Confidence Report status

YORK TOWNSHIP WATER SYSTEM 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 YORK TOWNSHIP WATER SYSTEM 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): IL0430010
System type: Community Water System
Population served: 1,423
Service connections: 480
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

YORK TOWNSHIP WATER SYSTEM is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 1,423 people from surface water.

As of August 1, 2026, its federal record holds 47 entries between 1992 and 2025, of which 1 remains open; none are health-based.

Of the 47, 36 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 synthetic organic chemicals, the Total Coliform Rules, and the Lead and Copper Rule.

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2025
Unaddressed
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2012 – September 11, 2013
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
October 2, 2011 – October 11, 2011
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 2, 2011 – October 11, 2011
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2011 – December 31, 2011
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 6, 2010 – December 23, 2010
Resolved
OCCT/SOWT Treatment Installation/Demonstration
Health-based
Lead and Copper Rule
August 22, 2009 – June 30, 2011
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 19, 2008 – February 15, 2008
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
January 19, 2008 – February 15, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2007 – November 30, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
February 1, 2006 – February 28, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2002 – May 31, 2002
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2000 – March 31, 2000
Archived
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
October 19, 1999 – January 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1999 – September 30, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 1998 – May 31, 1998
Archived
Monitoring, Regular
—
Diquat
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Endothall
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
OXAMYL
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Simazine
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Aldicarb sulfone
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Aldicarb
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Picloram
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Methoxychlor
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Toxaphene
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Atrazine
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
LASSO
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Heptachlor
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Heptachlor epoxide
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
2,4-D
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
2,4,5-TP
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Pentachlorophenol
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Chlordane
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Endrin
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Dalapon
October 1, 1994 – December 31, 1994
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1994 – September 30, 1994
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 1993 – November 30, 1993
Archived
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
October 1, 1993 – December 31, 1994
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1993 – October 31, 1993
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 1992 – October 31, 1992
Archived

Unaddressed no corrective action on record yetResolved 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
July 1, 2025	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
October 1, 2012 – September 11, 2013	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
October 2, 2011 – October 11, 2011	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
April 2, 2011 – October 11, 2011	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2011 – December 31, 2011	Monitoring, Regular	Nitrate	—	Resolved
October 6, 2010 – December 23, 2010	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
August 22, 2009 – June 30, 2011	OCCT/SOWT Treatment Installation/Demonstration	Lead and Copper Rule	Health-based	Resolved
January 19, 2008 – February 15, 2008	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 19, 2008 – February 15, 2008	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
November 1, 2007 – November 30, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
February 1, 2006 – February 28, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 2002 – May 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
March 1, 2000 – March 31, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 19, 1999 – January 31, 2000	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
September 1, 1999 – September 30, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
May 1, 1998 – May 31, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1994 – December 31, 1994	Monitoring, Regular	Diquat	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Endothall	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	OXAMYL	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Simazine	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Aldicarb sulfone	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Aldicarb	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Picloram	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Methoxychlor	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Toxaphene	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Atrazine	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	LASSO	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Heptachlor	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Heptachlor epoxide	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	2,4-D	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	2,4,5-TP	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Pentachlorophenol	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Chlordane	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Endrin	—	Resolved
October 1, 1994 – December 31, 1994	Monitoring, Regular	Dalapon	—	Resolved
September 1, 1994 – September 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1993 – November 30, 1993	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
October 1, 1993 – December 31, 1994	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
October 1, 1993 – October 31, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1992 – October 31, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived

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

Enforcement actions

September 20, 2025State Violation/Reminder Notice1 linked violation
September 11, 2013State Compliance achieved1 linked violation
June 26, 2013State Public Notification received1 linked violation
October 11, 2012State Public Notification requested1 linked violation
October 11, 2012State Violation/Reminder Notice1 linked violation
July 2, 2012State Public Notification received1 linked violation
February 8, 2012State Compliance achieved1 linked violation
January 12, 2012State Violation/Reminder Notice1 linked violation
January 12, 2012State Public Notification requested1 linked violation
October 11, 2011State Compliance achieved2 linked violations
October 4, 2011State Violation/Reminder Notice1 linked violation
June 30, 2011State Compliance achieved1 linked violation
January 7, 2011State Bilateral Compliance Agreement signed1 linked violation
December 23, 2010State Compliance achieved1 linked violation
December 21, 2010State Formal Notice of Violation issued1 linked violation
October 6, 2010State Violation/Reminder Notice1 linked violation
February 18, 2010State Bilateral Compliance Agreement signed1 linked violation
November 2, 2009State Formal Notice of Violation issued1 linked violation
October 9, 2009State Public Notification received1 linked violation
September 9, 2009State Public Notification requested1 linked violation
September 9, 2009State Violation/Reminder Notice1 linked violation
June 1, 2008State Compliance achieved1 linked violation
February 15, 2008State Public Notification received1 linked violation
February 15, 2008State Compliance achieved2 linked violations
February 13, 2008State Violation/Reminder Notice2 linked violations
December 19, 2007State Public Notification requested1 linked violation
March 28, 2000State Bilateral Compliance Agreement signed1 linked violation
February 7, 2000State Formal Notice of Violation issued1 linked violation
November 15, 1999State Violation/Reminder Notice1 linked violation
November 15, 1999State Public Notification requested1 linked violation
July 15, 1998State Public Notification requested1 linked violation
July 15, 1998State Violation/Reminder Notice1 linked violation
August 26, 1995State Public Notification requested1 linked violation
August 26, 1995State Violation/Reminder Notice1 linked violation
March 16, 1995State Violation/Reminder Notice31 linked violations
March 16, 1995State Public Notification requested31 linked violations
February 23, 1995State Compliance achieved31 linked violations
December 31, 1994State Compliance achieved2 linked violations
November 26, 1994State Public Notification requested1 linked violation
November 26, 1994State Violation/Reminder Notice1 linked violation
October 22, 1994State Public Notification requested1 linked violation
October 22, 1994State Violation/Reminder Notice1 linked violation
September 25, 1994State Public Notification requested2 linked violations
September 25, 1994State Public Notification requested1 linked violation
September 25, 1994State Violation/Reminder Notice1 linked violation
January 1, 1994State Public Notification requested2 linked violations
January 1, 1994State Violation/Reminder Notice3 linked violations
January 1, 1994State Violation/Reminder Notice1 linked violation
January 1, 1994State Public Notification requested1 linked violation
December 4, 1993State Violation/Reminder Notice1 linked violation
December 4, 1993State Public Notification requested1 linked violation
December 4, 1993State Public Notification requested2 linked violations
April 1, 1993State Public Notification requested1 linked violation
April 1, 1993State Violation/Reminder Notice1 linked violation
December 5, 1992State Public Notification requested1 linked violation
December 5, 1992State Violation/Reminder Notice1 linked violation
October 31, 1992State Violation/Reminder Notice2 linked violations
October 31, 1992State Public Notification requested2 linked violations
September 30, 1992State Public Notification received1 linked violation
September 5, 1992State Public Notification requested1 linked violation
September 5, 1992State Violation/Reminder Notice1 linked violation

Common questions

Is YORK TOWNSHIP WATER SYSTEM required to publish a Consumer Confidence Report?: Yes. YORK TOWNSHIP WATER SYSTEM 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 YORK TOWNSHIP WATER SYSTEM’s next Consumer Confidence Report due?: YORK TOWNSHIP WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does YORK TOWNSHIP WATER SYSTEM have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 item for YORK TOWNSHIP WATER SYSTEM 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

ADAMS, JONATHAN

630-964-7503

DARIEN, IL 60561