HIGHWOOD, IL · Lake County

US ARMY FT SHERIDAN Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of April 1, 1994. 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 Lake 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): IL0975637
System type: Community Water System
Population served: 3,500
Service connections: 180
Ownership: federal government
Water source: surface water (rivers, lakes, or reservoirs)

US ARMY FT SHERIDAN is one of 248 community water systems in Illinois in the 3,301 to 10,000 people size category, formerly serving 3,500 people from surface water.

EPA's federal records list this system as inactive in 1994; the record below is historical.

As of August 1, 2026, its federal record holds 15 entries between 1986 and 1993, all of which EPA lists as closed. Nothing has been added since 1993.

All 15 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 Surface Water Treatment Rules, and the Total Coliform Rules.

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1993 – December 31, 1993
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 1993 – November 30, 1993
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 1993 – October 31, 1993
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 1993 – August 31, 1993
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 1993 – July 31, 1993
Archived
Monitoring, Regular
—
Carbon tetrachloride
October 1, 1989 – December 31, 1989
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 1989 – December 31, 1989
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 1989 – December 31, 1989
Resolved
Monitoring, Regular
—
Benzene
October 1, 1989 – December 31, 1989
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
October 1, 1989 – December 31, 1989
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 1989 – September 30, 1989
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1989 – September 30, 1989
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 1989 – September 30, 1989
Resolved
Monitoring, Regular
—
Benzene
July 1, 1989 – September 30, 1989
Resolved
Monitoring, Regular
—
Selenium
October 1, 1986 – September 30, 1987
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
December 1, 1993 – December 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1993 – November 30, 1993	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
October 1, 1993 – October 31, 1993	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
August 1, 1993 – August 31, 1993	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
July 1, 1993 – July 31, 1993	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
October 1, 1989 – December 31, 1989	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 1989 – December 31, 1989	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
October 1, 1989 – December 31, 1989	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
October 1, 1989 – December 31, 1989	Monitoring, Regular	Benzene	—	Resolved
October 1, 1989 – December 31, 1989	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 1989 – September 30, 1989	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 1989 – September 30, 1989	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 1989 – September 30, 1989	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 1989 – September 30, 1989	Monitoring, Regular	Benzene	—	Resolved
October 1, 1986 – September 30, 1987	Monitoring, Regular	Selenium	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

May 6, 1993State Compliance achieved14 linked violations
March 8, 1993State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 1, 1993State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
March 1, 1993State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 1, 1993State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 1, 1993State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
November 20, 1992State Public Notification received1 linked violation
November 7, 1992State Violation/Reminder Notice1 linked violation
November 7, 1992State Public Notification requested1 linked violation
May 1, 1992State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
May 1, 1992State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 1, 1992State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 1, 1992State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
May 1, 1991State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 1, 1991State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
March 29, 1991State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 12, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 1, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 1, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 11, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 11, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 11, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 1, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 1, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 20, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 15, 1989State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 1, 1989State Public Notification requested7 linked violations
October 1, 1989State Violation/Reminder Notice7 linked violations
July 1, 1989State Violation/Reminder Notice7 linked violations
July 1, 1989State Public Notification requested7 linked violations

Last known contact on file (system is inactive)

Not on record

Phone not on record

HIGHWOOD, IL 60037