Drinking Water Compliance OS

Endicott, WA · Whitman County

ENDICOTT WATER DEPT 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)
WA5323400
System type
Community Water System
Population served
488
Service connections
187
Ownership
local government
Water source
groundwater (wells)

Violation history

  • Monitoring, Regular

    —

    LASSO

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring and Reporting (DBP)

    —

    TTHM

    January 1, 2016 – December 31, 2018

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    January 1, 2016 – December 31, 2018

    Resolved

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    January 1, 2015 – January 9, 2018

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Chromium

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Fluoride

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Mercury

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Nickel

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Nitrite

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Selenium

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Thallium, Total

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Arsenic

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    Cadmium

    January 1, 2014 – December 31, 2016

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2008 – December 31, 2010

    Archived

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2008 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2008 – December 31, 2010

    Resolved

  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate

    July 1, 2006 – September 30, 2006

    Resolved

  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate

    April 1, 2006 – June 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2006 – December 31, 2006

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    January 1, 1993 – January 31, 1993

    Archived

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    November 1, 1992 – November 30, 1992

    Archived

  • Monitoring, Repeat Minor (TCR)

    —

    Coliform (TCR)

    November 1, 1992 – November 30, 1992

    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

  • Monitoring, Regular

    —

    Cadmium

    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

Contact

ENDICOTT WATER DEPT

Phone not on record

Endicott, WA 99125