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CLATSKANIE, CITY OF

Oregon — Community Water System — PWSID: OR4100194

System Information

PWSIDOR4100194
System NameCLATSKANIE, CITY OF
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 12, 1979
Last ReportedDec 23, 2025

Location & Contact

StateOregon
CityCLATSKANIE
ZIP Code97016
AddressPO BOX 9
OrganizationCLATSKANIE, CITY OF
Phone503-728-2622

Population & Service

Population Served2,188
Service Connections922

Drinking Water Violations (17)

This water system has 17 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
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Resolved Jul 10, 2025 Consumer Confidence Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Jul 10, 2025 Consumer Confidence Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved Jul 26, 2023 Consumer Confidence Rule
Mar 1, 2011 Mar 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2011 Total Coliform Rule
Mar 1, 2011 Mar 31, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2011 Total Coliform Rule
Jun 24, 1979 Jun 23, 1980 Selenium MR No No — 0.05 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 24, 1979 Jun 23, 1980 Arsenic MR No No — 0.010 mg/L — Archived Jun 23, 1980 Arsenic Rule
Jun 24, 1979 Jun 23, 1980 Nitrate MR No No — 10 mg/L — Archived Jun 23, 1980 Nitrate Rule
Jun 24, 1979 Jun 23, 1980 Cadmium MR No No — 0.005 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 24, 1979 Jun 23, 1980 Mercury MR No No — 0.002 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 24, 1979 Jun 23, 1980 Chromium MR No No — 0.1 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 24, 1979 Jun 23, 1980 Barium MR No No — 2 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 24, 1979 Jun 23, 1980 Fluoride MR No No — 4.0 mg/L — Archived Jun 23, 1980 Inorganic Chemicals
Jun 1, 1976 May 31, 1980 Combined Radium (-226 and -228) MR No No — 5 pCi/L — Archived May 31, 1980 Radionuclides and Revised Rad Rule
Jun 1, 1976 May 31, 1980 Gross Alpha, Excl. Radon and U MR No No — 15 pCi/L — Archived May 31, 1980 Radionuclides and Revised Rad 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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