OTTAWA, IL · Knox County

WESTPORT WATER MUTUAL Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of September 10, 2007. 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 Knox 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): IL0955100
System type: Community Water System
Population served: 61
Service connections: 24
Ownership: privately owned
Water source: groundwater (wells)

WESTPORT WATER MUTUAL is one of 1,572 community water systems in Illinois in the 500 or fewer people size category, formerly serving 61 people from groundwater.

EPA's federal records list this system as inactive in 2007; the record below is historical.

As of August 1, 2026, its federal record holds 7 entries between 1977 and 2001, all of which EPA lists as closed. Nothing has been added since 2001.

Of the 7, 4 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

Public Education
Health-based
Lead and Copper Rule
January 1, 2001 – April 19, 2004
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
September 1, 1998 – September 30, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1998 – September 30, 1998
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 1998 – August 31, 1998
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
July 1, 1998 – July 31, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1998 – July 31, 1998
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Resolved 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
January 1, 2001 – April 19, 2004	Public Education	Lead and Copper Rule	Health-based	Resolved
September 1, 1998 – September 30, 1998	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
September 1, 1998 – September 30, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 1998 – August 31, 1998	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
July 1, 1998 – July 31, 1998	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
July 1, 1998 – July 31, 1998	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

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

Enforcement actions

April 19, 2004State Compliance achieved4 linked violations
June 11, 2003State Formal Notice of Violation issued1 linked violation
February 28, 2003State Violation/Reminder Notice1 linked violation
January 1, 2002State Violation/Reminder Notice1 linked violation
November 15, 1998State Violation/Reminder Notice2 linked violations
November 15, 1998State Public Notification requested2 linked violations
October 15, 1998State Violation/Reminder Notice1 linked violation
October 15, 1998State Public Notification requested1 linked violation
September 15, 1998State Public Notification requested2 linked violations
September 15, 1998State Violation/Reminder Notice3 linked violations
August 31, 1991State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 31, 1991State Public Notification requestedgeneral compliance action — not tied to a specific violation on record

Last known contact on file (system is inactive)

Not on record

815-343-8521

OTTAWA, IL 61350