Public Water Partners

Oak Harbor, WA · Island County

OAK HARBOR CITY OF Water System

Consumer Confidence Report status

OAK HARBOR CITY OF must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for OAK HARBOR CITY OF.

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

System facts

System ID (PWSID)
WA5362650
System type
Community Water System
Population served
23,675
Service connections
8,886
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

OAK HARBOR CITY OF is one of 111 community water systems in Washington in the 10,001 to 100,000 people size category, serving 23,675 people from surface water.

As of August 1, 2026, its federal record holds 10 entries between 1983 and 2025, all of which EPA lists as closed.

Of the 10, 8 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and inorganic chemicals.

Violation history

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    October 1, 2025 – December 31, 2025

    Archived

  • Monitoring and Reporting (DBP)

    —

    TTHM

    October 1, 2025 – December 31, 2025

    Archived

  • Monitoring and Reporting (DBP)

    —

    TTHM

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    August 1, 2013 – August 31, 2013

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    February 1, 1994 – February 28, 1994

    Archived

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    July 1, 1992 – July 31, 1992

    Archived

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    February 1, 1992 – February 29, 1992

    Archived

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    January 1, 1992 – January 31, 1992

    Archived

  • Maximum Contaminant Level Violation, Average

    Health-based

    Fluoride

    May 1, 1983 – September 30, 1983

    Archived

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

Enforcement actions

Common questions

Is OAK HARBOR CITY OF required to publish a Consumer Confidence Report?

Yes. OAK HARBOR CITY OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is OAK HARBOR CITY OF’s next Consumer Confidence Report due?

OAK HARBOR CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does OAK HARBOR CITY OF have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for OAK HARBOR CITY OF.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

OAK HARBOR CITY OF

Phone not on record

Oak Harbor, WA 98277