Drinking Water Compliance OS

SEQUIM, WA · Clallam County

HEART O THE HILLS 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)
WA5302632
System type
Community Water System
Population served
76
Service connections
37
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2018 – September 22, 2018

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Picloram

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    LASSO

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    Atrazine

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Simazine

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    Vinyl chloride

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    BHC-GAMMA

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Endrin

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Styrene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    Ethylbenzene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    Toluene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    Benzene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    CHLOROBENZENE

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    Tetrachloroethylene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    Trichloroethylene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    Carbon tetrachloride

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    October 1, 2006 – December 31, 2006

    Archived

  • Monitoring, Regular

    —

    Aldicarb

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Aldicarb sulfone

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Aldicarb sulfoxide

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    October 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Endrin

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Simazine

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    LASSO

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    July 1, 2006 – September 30, 2006

    Archived

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Picloram

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Aldicarb sulfoxide

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Aldicarb sulfone

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Aldicarb

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 2005 – December 31, 2007

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    November 1, 2003 – November 30, 2003

    Archived

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    LASSO

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Simazine

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Endrin

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Thallium, Total

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Selenium

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Nickel

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Mercury

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Fluoride

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Chromium

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Cadmium

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 2002 – December 31, 2004

    Resolved

  • Monitoring, Regular

    —

    Aldicarb

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Aldicarb sulfone

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Aldicarb sulfoxide

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    OXAMYL

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Picloram

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2002 – December 31, 2004

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    October 1, 2000 – October 31, 2000

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    June 1, 2000 – June 30, 2000

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    October 1, 1999 – October 31, 1999

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    August 1, 1998 – August 31, 1998

    Archived

  • Monitoring, Repeat Major (TCR)

    —

    Coliform (TCR)

    February 1, 1997 – February 28, 1997

    Archived

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

Enforcement actions

Contact

HEART O THE HILLS

Phone not on record

SEQUIM, WA 98382