WARRENVILLE, IL · DuPage County

WARRENVILLE RAY STR Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of October 1, 1995. 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): IL0430832
System type: Community Water System
Population served: 93
Service connections: 31
Ownership: privately owned
Water source: groundwater (wells)

WARRENVILLE RAY STR is one of 1,572 community water systems in Illinois in the 500 or fewer people size category, formerly serving 93 people from groundwater.

EPA's federal records list this system as inactive in 1995; the record below is historical.

As of August 1, 2026, its federal record holds 10 entries between 1977 and 1995, all of which EPA lists as closed. Nothing has been added since 1995.

Of the 10, 9 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, the Lead and Copper Rule, and the Radionuclides and Revised Rad Rule.

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1995 – August 31, 1995
Archived
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 1994 – January 1, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1994 – January 31, 1994
Archived
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1994 – January 1, 1995
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
April 1, 1993 – January 1, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1993 – February 28, 1993
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 1992 – November 30, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1992 – October 31, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1991 – November 30, 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)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
August 1, 1995 – August 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1994 – January 1, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 1994 – January 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1994 – January 1, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
April 1, 1993 – January 1, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
February 1, 1993 – February 28, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1992 – November 30, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
October 1, 1992 – October 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
November 1, 1991 – November 30, 1991	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	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)Resolved addressed and confirmed by the state

Enforcement actions

August 26, 1995State Violation/Reminder Notice1 linked violation
August 26, 1995State Public Notification requested1 linked violation
January 1, 1995State Compliance achieved3 linked violations
March 28, 1994State Public Notification received1 linked violation
March 6, 1994State Public Notification requested1 linked violation
March 6, 1994State Violation/Reminder Notice1 linked violation
April 23, 1993State Public Notification received1 linked violation
April 1, 1993State Public Notification requested1 linked violation
April 1, 1993State Violation/Reminder Notice1 linked violation
January 2, 1993State Public Notification requested1 linked violation
January 2, 1993State Violation/Reminder Notice1 linked violation
December 5, 1992State Public Notification requested2 linked violations
December 5, 1992State Violation/Reminder Notice2 linked violations
December 4, 1992State Public Notification received2 linked violations
December 1, 1992State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
December 1, 1992State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 6, 1992State Public Notification received1 linked violation
January 4, 1992State Public Notification requested1 linked violation
January 4, 1992State Violation/Reminder Notice1 linked violation

Last known contact on file (system is inactive)

Not on record

Phone not on record

WARRENVILLE, IL 60555