Is OAK LAWN MHP required to publish a Consumer Confidence Report?

Yes. OAK LAWN MHP 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 OAK LAWN MHP’s next Consumer Confidence Report due?

OAK LAWN MHP’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.

POPLAR GROVE, IL · Boone County

OAK LAWN MHP Water System

Consumer Confidence Report status

OAK LAWN MHP 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 no open violations for OAK LAWN MHP.

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): IL0075275
System type: Community Water System
Population served: 450
Service connections: 180
Ownership: privately owned
Water source: groundwater (wells)

OAK LAWN MHP is one of 1,572 community water systems in Illinois in the 500 or fewer people size category, serving 450 people from groundwater.

As of August 1, 2026, its federal record holds 5 entries between 1995 and 2025, all of which EPA lists as closed.

Of the 5, 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 and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2025 – November 30, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
November 1, 2025 – November 30, 2025
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
August 1, 2004 – August 31, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2004 – August 31, 2004
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 1995 – November 30, 1995
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
November 1, 2025 – November 30, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
November 1, 2025 – November 30, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
August 1, 2004 – August 31, 2004	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2004 – August 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 1995 – November 30, 1995	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived

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

Enforcement actions

December 30, 2025State Public Notification requested1 linked violation
December 30, 2025State Public Notification requested1 linked violation
December 30, 2025State Violation/Reminder Notice1 linked violation
December 30, 2025State Violation/Reminder Notice1 linked violation
December 18, 2025State Compliance achieved2 linked violations
April 29, 2025State Public Notification received1 linked violation
March 6, 2025State Compliance achieved1 linked violation
January 21, 2025State Public Notification requested8 linked violations
January 21, 2025State Violation/Reminder Notice1 linked violation
January 20, 1996State Public Notification requested1 linked violation
January 20, 1996State Violation/Reminder Notice1 linked violation

Common questions

Is OAK LAWN MHP required to publish a Consumer Confidence Report?: Yes. OAK LAWN MHP 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 OAK LAWN MHP’s next Consumer Confidence Report due?: OAK LAWN MHP’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does OAK LAWN MHP have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for OAK LAWN MHP.
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

STRANGE, DEANNA

206-309-9330

POPLAR GROVE, IL 61065