Drinking Water Compliance OS

Lopez Island, WA · San Juan County

MacKaye Harbor Water District 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)
WA5312911
System type
Community Water System
Population served
133
Service connections
53
Ownership
local government
Water source
groundwater (wells)

Violation history

  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2021 – October 5, 2021

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2014 – September 22, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 2000 – May 31, 2000

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    July 1, 1992 – July 31, 1992

    Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Contact

MacKaye Harbor Water District

Phone not on record

Lopez Island, WA 98261