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KELSO CITY OF

Washington — Community Water System — PWSID: WA5338000

System Information

PWSIDWA5338000
System NameKELSO CITY OF
System TypeCommunity Water System
Water SourceGround Water Under Influence
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerYes
First ReportedFeb 7, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityKELSO
ZIP Code98626
AddressPO BOX 819
OrganizationKELSO CITY OF
Phone—

Population & Service

Population Served15,097
Service Connections5,082

Drinking Water Violations (13)

This water system has 13 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Dec 1, 2018 Dec 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Oct 19, 2011 Consumer Confidence Rule
Jan 1, 2000 Jan 31, 2000 Surface Water Treatment Rule TT Yes No — — — Archived Jan 31, 2000 Surface Water Treatment Rule
Jan 1, 1992 Jan 31, 1992 Coliform (TCR) MR No No — 5% of samples — Archived Jan 31, 1992 Total Coliform Rule
Oct 1, 1979 Oct 31, 1979 Selenium MR No No — 0.05 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Fluoride MR No No — 4.0 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Arsenic MR No No — 0.010 mg/L — Archived Oct 31, 1979 Arsenic Rule
Oct 1, 1979 Oct 31, 1979 Barium MR No No — 2 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Chromium MR No No — 0.1 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Mercury MR No No — 0.002 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Gross Alpha, Excl. Radon and U MR No No — 15 pCi/L — Archived Oct 31, 1979 Radionuclides and Revised Rad Rule
Oct 1, 1979 Oct 31, 1979 Cadmium MR No No — 0.005 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Nitrate MR No No — 10 mg/L — Archived Oct 31, 1979 Nitrate Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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