Drinking Water Compliance OS

WILLIAMSTOWN, MO · Clark County

CLARK CO PWSD #1- WILLIA Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of November 1, 1992. 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 Clark County, MO.

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

System facts

System ID (PWSID)
MO2024139
System type
Community Water System
Population served
1,902
Service connections
634
Ownership
local government
Water source
groundwater (wells)

Violation history

No violations on record for this system.

Enforcement actions

No enforcement actions on record for this system.

Last known contact on file (system is inactive)

Not on record

573-853-4343

WILLIAMSTOWN, MO 63473