Drinking Water Compliance OS

UNION, WA · Mason County

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

System facts

System ID (PWSID)
WA5311656
System type
Community Water System
Population served
41
Service connections
16
Ownership
local government
Water source
groundwater (wells)

Violation history

  • Monitoring, Regular

    Styrene

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 2022 – March 31, 2022

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    January 1, 2022 – March 31, 2022

    Resolved
  • Initial Tap Sampling for Pb and Cu

    Lead and Copper Rule

    July 1, 2021 – December 14, 2022

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Contact

MOUNTAIN VIEW

Phone not on record

UNION, WA 98592-9649