Drinking Water Compliance OS

RIO, WI · Columbia County

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

System facts

System ID (PWSID)
WI1110111
System type
Community Water System
Population served
1,095
Service connections
405
Ownership
local government
Water source
groundwater (wells)

Violation history

No violations on record for this system.

Enforcement actions

Contact

RIO VILLAGE CLERK - AMY STONE

Phone not on record

RIO, WI 53960-0276