Public Water Partners

Twisp, WA · Okanogan County

TWISP TOWN OF Water System

Consumer Confidence Report status

TWISP TOWN 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 TWISP TOWN 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)
WA5390050
System type
Community Water System
Population served
1,173
Service connections
675
Ownership
local government
Water source
groundwater (wells)

TWISP TOWN OF is one of 428 community water systems in Washington in the 501 to 3,300 people size category, serving 1,173 people from groundwater.

As of August 1, 2026, its federal record holds 36 entries between 1979 and 2022, all of which EPA lists as closed. Nothing has been added since 2022.

Of the 36, 34 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 synthetic organic chemicals, inorganic chemicals, and the Total Coliform Rules.

Violation history

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2022 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2022 – December 31, 2022

    Resolved

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    May 1, 2020 – May 31, 2020

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2005 – December 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2005 – December 31, 2007

    Archived

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2005 – December 31, 2005

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 2004 – September 30, 2004

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    August 1, 2000 – August 31, 2000

    Archived

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 1995 – September 30, 1995

    Archived

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    September 1, 1992 – September 30, 1992

    Archived

  • Monitoring, Repeat Minor (TCR)

    —

    Coliform (TCR)

    November 1, 1991 – November 30, 1991

    Archived

  • Monitoring, Regular

    —

    Cadmium

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Chromium

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Fluoride

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Mercury

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Nitrate

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Selenium

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Arsenic

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    October 1, 1979 – October 31, 1979

    Archived

  • Monitoring, Regular

    —

    Barium

    October 1, 1979 – October 31, 1979

    Archived

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

Enforcement actions

Common questions

Is TWISP TOWN OF required to publish a Consumer Confidence Report?

Yes. TWISP TOWN 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 TWISP TOWN OF’s next Consumer Confidence Report due?

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

Does TWISP TOWN OF have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for TWISP TOWN 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

TWISP TOWN OF

Phone not on record

Twisp, WA 98856