Is ST. LOUIS CENTER required to publish a Consumer Confidence Report?

Yes. ST. LOUIS CENTER 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 ST. LOUIS CENTER’s next Consumer Confidence Report due?

ST. LOUIS CENTER’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.

CHELSEA, MI · Washtenaw County

ST. LOUIS CENTER Water System

Consumer Confidence Report status

ST. LOUIS CENTER 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 ST. LOUIS CENTER.

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 Michigan’s official records. Always confirm current status with Michigan before making decisions based on this information.

System facts

System ID (PWSID): MI0006325
System type: Community Water System
Population served: 56
Service connections: 3
Ownership: privately owned
Water source: groundwater (wells)

ST. LOUIS CENTER is one of 1,316 community water systems in Michigan in the 500 or fewer people size category, serving 56 people from groundwater.

As of August 1, 2026, its federal record holds 8 entries between 2023 and 2026, all of which EPA lists as closed.

Of the 8, 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 inorganic chemicals and the Total Coliform Rules.

Violation history

Monitoring, Regular
—
Arsenic
January 1, 2026 – March 31, 2026
Archived
Monitoring, Regular
—
Arsenic
January 1, 2026 – March 31, 2026
Archived
Monitoring, Regular
—
Arsenic
January 1, 2026 – March 31, 2026
Archived
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
December 11, 2024 – December 15, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2023 – December 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2023 – September 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2023 – June 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2023 – March 31, 2023
Resolved

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
January 1, 2026 – March 31, 2026	Monitoring, Regular	Arsenic	—	Archived
January 1, 2026 – March 31, 2026	Monitoring, Regular	Arsenic	—	Archived
January 1, 2026 – March 31, 2026	Monitoring, Regular	Arsenic	—	Archived
December 11, 2024 – December 15, 2024	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2023 – December 31, 2023	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2023 – June 30, 2023	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2023 – March 31, 2023	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved

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

Enforcement actions

March 26, 2024State Public Notification requested4 linked violations
March 26, 2024State Violation/Reminder Notice2 linked violations
October 12, 2023State Public Notification requested3 linked violations
June 23, 2023State Public Notification requested2 linked violations
April 4, 2023State Public Notification requested24 linked violations
December 6, 2022State Public Notification requested2 linked violations
March 1, 2017State Public Notification requested1 linked violation
September 29, 2007State Public Notification received2 linked violations
December 5, 2005State Administrative/Compliance Order without penalty issued1 linked violation

Common questions

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

ALPHONSE, SATHEESH

734-475-8430

CHELSEA, MI 48118