Public Water Partners

ST CHARLES, MO · St. Charles County

CHESHIRE SUBD Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of February 1, 1984. 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 St. Charles County, MO.

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

System facts

System ID (PWSID)
MO6036003
System type
Community Water System
Population served
95
Service connections
32
Ownership
privately owned
Water source
groundwater (wells)

CHESHIRE SUBD is one of 1,412 community water systems in Missouri in the 500 or fewer people size category, formerly serving 95 people from groundwater.

EPA's federal records list this system as inactive in 1984; the record below is historical.

As of August 1, 2026, its federal record holds 1 entry in 1982, all of which EPA lists as closed. Nothing has been added since 1982.

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, Single Sample

    Health-based

    Fluoride

    February 23, 1982 – September 22, 1983

    Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Last known contact on file (system is inactive)

Not on record

0 - -

ST CHARLES, MO 63301