WATERFORD, MI · Cass County
MILLS TRAILER COURT Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of August 23, 2023. 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 Cass County, MI.
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)
- MI0040101
- System type
- Community Water System
- Population served
- 60
- Service connections
- 30
- Ownership
- privately owned
- Water source
- groundwater (wells)
MILLS TRAILER COURT is one of 1,316 community water systems in Michigan in the 500 or fewer people size category, formerly serving 60 people from groundwater.
EPA's federal records list this system as inactive in 2023; the record below is historical.
As of August 1, 2026, its federal record holds 1 entry in 1979, all of which EPA lists as closed. Nothing has been added since 1979.
None of the 1 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves inorganic chemicals.
Violation history
Maximum Contaminant Level Violation, Average
Health-basedArsenic
July 1, 1979 – September 30, 1981
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 1979 – September 30, 1981 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- January 14, 2019State Compliance achieved5 linked violations
- March 31, 2008State Compliance achieved5 linked violations
- September 10, 2007State Public Notification received11 linked violations
- December 28, 2006State Public Notification received12 linked violations
Last known contact on file (system is inactive)
COUNTY PARKS, OAKLAND
248-858-0906
WATERFORD, MI 48328