CHELSEA, MI · Washtenaw County

ST. LOUIS CENTER Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)

Violation history

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
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2023 – January 31, 2023
Resolved
Monitoring, Regular
—
Styrene
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
November 25, 2016 – November 29, 2016
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
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
January 1, 2023 – January 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring, Regular	Styrene	—	Resolved
November 25, 2016 – November 29, 2016	Monitoring, Source Water (GWR)	E. COLI	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

January 23, 2025State Violation/Reminder Notice3 linked violations
April 25, 2024State Public Notification received3 linked violations
March 19, 2024State Compliance achieved2 linked violations
March 19, 2024State Compliance achieved3 linked violations
October 12, 2023State Violation/Reminder Notice2 linked violations
June 23, 2023State Violation/Reminder Notice1 linked violation
February 16, 2023State Compliance achieved22 linked violations
March 1, 2017State Public Notification requested1 linked violation
December 5, 2005State Administrative/Compliance Order without penalty issued1 linked violation

Contact

ALPHONSE, SATHEESH

734-475-8430

CHELSEA, MI 48118