STEWARTS ADDITION

Oregon — Community Water System — PWSID: OR4100619

System Information

PWSIDOR4100619
System NameSTEWARTS ADDITION
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 12, 1979
Last ReportedMar 25, 2026

Location & Contact

StateOregon
CityPENDLETON
ZIP Code97801
Address71065 SW DOUGLAS DR
OrganizationSTEWARTS ADDITION
Phone541-215-3116

Population & Service

Population Served50
Service Connections16

Drinking Water Violations (30)

This water system has 30 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
Oct 1, 2025 MR No No TT Unaddressed
Oct 1, 2025 Other No No Unaddressed
Sep 1, 2025 Sep 30, 2025 MON No Yes Resolved Sep 30, 2025
Jul 1, 2025 Other No No Unaddressed
Oct 1, 2024 Other No No Unaddressed
Jul 1, 2024 Other No No Unaddressed
Oct 1, 2023 Other No No Unaddressed
Jul 1, 2023 Other No No Unaddressed
Jan 1, 2017 Dec 31, 2025 MR No Yes 15 pCi/L Archived Dec 31, 2025
Sep 1, 2010 Sep 30, 2010 MR No No 5% of samples Resolved Sep 30, 2010
Sep 1, 2010 Sep 30, 2010 MR No No 5% of samples Resolved Sep 30, 2010
Sep 1, 2008 Sep 30, 2008 MR No No 5% of samples Resolved Sep 30, 2008
Jan 1, 2005 Dec 31, 2005 MR No Yes 10 mg/L Resolved Dec 31, 2005
Oct 19, 2004 Other No No Resolved Nov 24, 2006
Jul 1, 2004 Other No No Resolved Nov 24, 2006
Jan 1, 2004 MR No No TT Resolved Jul 7, 2004
Jan 1, 2004 MR No No TT Resolved Jul 7, 2004
Oct 19, 2003 Other No No Resolved Nov 24, 2006
Jul 1, 2003 Other No No Resolved Nov 24, 2006
Jan 1, 2003 MR No No TT Resolved Jul 7, 2004
Jan 1, 2003 MR No No TT Resolved Jul 7, 2004
Oct 19, 2002 Other No No Resolved Nov 24, 2006
Jul 1, 2002 Other No No Resolved Nov 24, 2006
Oct 19, 2001 Other No No Resolved Nov 24, 2006
Jul 1, 2001 Other No No Resolved Nov 24, 2006
Jul 1, 2001 Other No No Resolved Nov 24, 2006
Nov 1, 2000 Nov 30, 2000 MCL Yes No 5% of samples Resolved Nov 30, 2000
Sep 23, 1997 MR No No TT Resolved Jul 7, 2004
Jun 1, 1976 May 31, 1980 MR No No 5 pCi/L Archived May 31, 1980
Jun 1, 1976 May 31, 1980 MR No No 15 pCi/L Archived May 31, 1980

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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