Drinking Water Compliance OS

Pasco, WA · Franklin County

PASCO 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)
WA5366400
System type
Community Water System
Population served
115,102
Service connections
31,958
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2025 – December 31, 2025

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2025 – December 31, 2025

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Picloram

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Endrin

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Simazine

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    LASSO

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2023 – December 31, 2025

    Archived

  • Monitoring of Treatment (SWTR-Filter)

    —

    Surface Water Treatment Rule

    December 1, 2017 – December 31, 2017

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2016 – October 24, 2016

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2010 – October 27, 2010

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2007 – December 31, 2007

    Resolved

  • 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

PASCO WATER DEPARTMENT

Phone not on record

Pasco, WA 99301