Drinking Water Compliance OS

Chehalis, WA · Lewis County

CHEHALIS WATER DEPARTMENT 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)
WA5312250
System type
Community Water System
Population served
11,718
Service connections
4,382
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2024 – February 19, 2025

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2022 – June 30, 2023

    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

    —

    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

    —

    Endrin

    July 1, 2006 – September 30, 2006

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    July 1, 2006 – September 30, 2006

    Resolved

  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    May 1, 2005 – May 31, 2005

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    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

CHEHALIS WATER DEPARTMENT

Phone not on record

Chehalis, WA 98532