DARIEN, IL · DuPage County

YORK CENTER COOP Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of April 23, 2015. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in DuPage County, IL.

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): IL0437550
System type: Community Water System
Population served: 212
Service connections: 68
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

YORK CENTER COOP is one of 1,572 community water systems in Illinois in the 500 or fewer people size category, formerly serving 212 people from surface water.

EPA's federal records list this system as inactive in 2015; the record below is historical.

As of August 1, 2026, its federal record holds 6 entries between 1977 and 1993, all of which EPA lists as closed. Nothing has been added since 1993.

Of the 6, 3 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 Total Coliform Rules and the Radionuclides and Revised Rad Rule.

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1993 – May 31, 1993
Archived
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
April 1, 1993 – April 30, 1993
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1993 – April 30, 1993
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
April 1, 1993 – April 30, 1993
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1991 – August 31, 1991
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
May 1, 1993 – May 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1993 – April 30, 1993	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1993 – April 30, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1993 – April 30, 1993	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
August 1, 1991 – August 31, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

July 3, 1993State Violation/Reminder Notice1 linked violation
July 3, 1993State Public Notification requested1 linked violation
June 20, 1993State Public Notification received4 linked violations
December 2, 1991State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
November 2, 1991State Public Notification requested1 linked violation
October 6, 1991State Public Notification requested2 linked violations
October 6, 1991State Violation/Reminder Notice2 linked violations
October 7, 1990State Violation/Reminder Notice2 linked violations
August 10, 1990State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 10, 1989State Violation/Reminder Notice2 linked violations

Last known contact on file (system is inactive)

JOERS, JAMES J.

630-964-7503

DARIEN, IL 60561