Is OTTER LAKE WATER COMMISSION required to publish a Consumer Confidence Report?

Yes. OTTER LAKE WATER COMMISSION 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 OTTER LAKE WATER COMMISSION’s next Consumer Confidence Report due?

OTTER LAKE WATER COMMISSION’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.

VIRDEN, IL · Macoupin County

OTTER LAKE WATER COMMISSION Water System

Consumer Confidence Report status

OTTER LAKE WATER COMMISSION 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 OTTER LAKE WATER COMMISSION.

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): IL1175200
System type: Community Water System
Population served: 1,318
Service connections: 527
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

OTTER LAKE WATER COMMISSION is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 1,318 people from surface water.

As of August 1, 2026, its federal record holds 12 entries between 1977 and 2010, all of which EPA lists as closed. Nothing has been added since 2010.

Of the 12, 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 Surface Water Treatment Rules, synthetic organic chemicals, and the Lead and Copper Rule.

Violation history

Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2010 – July 31, 2010
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2002 – May 31, 2002
Resolved
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
February 1, 1995 – September 13, 1995
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 1994 – August 31, 1994
Archived
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
July 11, 1994 – September 13, 1995
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 1994 – April 30, 1994
Archived
Maximum Contaminant Level Violation, Average
Health-based
Atrazine
April 1, 1994 – June 21, 1994
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Atrazine
October 1, 1993 – December 31, 1993
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1993 – September 30, 1993
Archived
Maximum Contaminant Level Violation, Average
Health-based
Atrazine
July 1, 1993 – September 30, 1993
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
August 1, 1986 – September 16, 1986
Resolved
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
July 1, 2010 – July 31, 2010	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
May 1, 2002 – May 31, 2002	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 1995 – September 13, 1995	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved
August 1, 1994 – August 31, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
July 11, 1994 – September 13, 1995	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved
April 1, 1994 – April 30, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
April 1, 1994 – June 21, 1994	Maximum Contaminant Level Violation, Average	Atrazine	Health-based	Resolved
October 1, 1993 – December 31, 1993	Maximum Contaminant Level Violation, Average	Atrazine	Health-based	Resolved
September 1, 1993 – September 30, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1993 – September 30, 1993	Maximum Contaminant Level Violation, Average	Atrazine	Health-based	Resolved
August 1, 1986 – September 16, 1986	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
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 16, 2014State Public Notification received1 linked violation
April 16, 2014State Public Notification received1 linked violation
January 14, 2014State Compliance achieved2 linked violations
January 13, 2014State Violation/Reminder Notice1 linked violation
January 13, 2014State Public Notification requested1 linked violation
January 13, 2014State Violation/Reminder Notice1 linked violation
January 13, 2014State Public Notification requested1 linked violation
September 7, 2010State Public Notification received1 linked violation
September 7, 2010State Compliance achieved1 linked violation
August 25, 2010State Formal Notice of Violation issued1 linked violation
August 16, 2010State Violation/Reminder Notice1 linked violation
August 16, 2010State Public Notification requested1 linked violation
June 30, 2002State Compliance achieved1 linked violation
June 17, 2002State Public Notification requested1 linked violation
June 17, 2002State Violation/Reminder Notice1 linked violation
September 13, 1995State Compliance achieved2 linked violations
November 10, 1994State Public Notification received1 linked violation
October 29, 1994State Violation/Reminder Notice1 linked violation
October 29, 1994State Public Notification requested1 linked violation
July 1, 1994State Public Notification requested1 linked violation
July 1, 1994State Violation/Reminder Notice1 linked violation
June 30, 1994State Public Notification received1 linked violation
June 21, 1994State Compliance achieved4 linked violations
June 10, 1994State Public Notification requested1 linked violation
June 10, 1994State Public Notification requested6 linked violations
June 10, 1994State Violation/Reminder Notice6 linked violations
June 10, 1994State Violation/Reminder Notice1 linked violation
April 27, 1994State Public Notification received1 linked violation
April 1, 1994State Violation/Reminder Notice1 linked violation
April 1, 1994State Public Notification requested1 linked violation
January 1, 1994State Violation/Reminder Notice1 linked violation
January 1, 1994State Public Notification requested1 linked violation
November 6, 1993State Violation/Reminder Notice1 linked violation
November 6, 1993State Public Notification requested1 linked violation
October 1, 1993State Violation/Reminder Notice1 linked violation
October 1, 1993State Public Notification requested1 linked violation
September 16, 1986State Compliance achieved1 linked violation

Common questions

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

HOGAN II, JOSEPH

217-627-2349

VIRDEN, IL 62690