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COTTAGE GROVE, CITY OF

Oregon — Community Water System — PWSID: OR4100236

System Information

PWSIDOR4100236
System NameCOTTAGE GROVE, 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
CityCOTTAGE GROVE
ZIP Code97424
Address400 E MAIN ST
OrganizationCOTTAGE GROVE, CITY OF
Phone541-942-3349

Population & Service

Population Served10,879
Service Connections4,131

Drinking Water Violations (68)

This water system has 68 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, 2023 — Consumer Confidence Rule Other No No — — — Resolved Jul 3, 2023 Consumer Confidence Rule
Apr 1, 2022 Jun 30, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2022 Jun 30, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2022 Mar 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2022 Surface Water Treatment Rule
Mar 1, 2022 Mar 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2022 Surface Water Treatment Rule
Mar 1, 2022 Mar 31, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2022 Surface Water Treatment Rule
Jan 1, 2022 — Lead and Copper Rule MR No No — TT — Resolved May 2, 2022 Lead and Copper Rule
Nov 1, 2009 Nov 30, 2009 Surface Water Treatment Rule TT Yes No — — — Resolved Nov 30, 2009 Surface Water Treatment Rule
Nov 1, 2009 Nov 30, 2009 Surface Water Treatment Rule TT Yes No — — — Resolved Nov 30, 2009 Surface Water Treatment Rule
Nov 1, 2009 Nov 30, 2009 Surface Water Treatment Rule TT Yes No — — — Resolved Nov 30, 2009 Surface Water Treatment Rule
May 1, 2007 May 31, 2007 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2007 Total Coliform Rule
Apr 1, 2007 Apr 30, 2007 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2007 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2007 Apr 30, 2007 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 30, 2007 Total Coliform Rule
Apr 1, 2000 Apr 30, 2000 Surface Water Treatment Rule MR No No — — — Archived Apr 30, 2000 Surface Water Treatment Rule
Apr 1, 1999 Apr 30, 1999 Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 1999 Surface Water Treatment Rule
Dec 1, 1998 Dec 31, 1998 Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 1998 Surface Water Treatment Rule
Dec 1, 1998 Dec 31, 1998 Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 1998 Surface Water Treatment Rule
Oct 1, 1997 Oct 31, 1997 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 1997 Surface Water Treatment Rule
Sep 1, 1997 Sep 30, 1997 Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 1997 Surface Water Treatment Rule
Feb 1, 1997 Feb 28, 1997 Surface Water Treatment Rule TT Yes No — — — Resolved Feb 28, 1997 Surface Water Treatment Rule
Feb 1, 1997 Feb 28, 1997 Surface Water Treatment Rule TT Yes No — — — Resolved Feb 28, 1997 Surface Water Treatment Rule
Jan 1, 1997 Jan 31, 1997 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1997 Surface Water Treatment Rule
Jan 1, 1997 Jan 31, 1997 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1997 Surface Water Treatment Rule
Dec 1, 1996 Dec 31, 1996 Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 1996 Surface Water Treatment Rule
Dec 1, 1996 Dec 31, 1996 Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 1996 Surface Water Treatment Rule
Nov 1, 1996 Nov 30, 1996 Surface Water Treatment Rule TT Yes No — — — Resolved Nov 30, 1996 Surface Water Treatment Rule
Nov 1, 1996 Nov 30, 1996 Surface Water Treatment Rule TT Yes No — — — Resolved Nov 30, 1996 Surface Water Treatment Rule
Nov 1, 1996 Nov 30, 1996 Surface Water Treatment Rule TT Yes No — — — Resolved Nov 30, 1996 Surface Water Treatment Rule
Oct 1, 1996 Oct 31, 1996 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 1996 Surface Water Treatment Rule
Oct 1, 1996 Oct 31, 1996 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 1996 Surface Water Treatment Rule
Oct 1, 1996 Oct 31, 1996 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 1996 Surface Water Treatment Rule
Apr 1, 1996 Apr 30, 1996 Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 1996 Surface Water Treatment Rule
Apr 1, 1996 Apr 30, 1996 Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 1996 Surface Water Treatment Rule
Dec 1, 1995 Dec 31, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 1995 Surface Water Treatment Rule
Dec 1, 1995 Dec 31, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 1995 Surface Water Treatment Rule
Oct 1, 1995 Oct 31, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 1995 Surface Water Treatment Rule
Oct 1, 1995 Oct 31, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 1995 Surface Water Treatment Rule
Aug 1, 1995 Aug 31, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 1995 Surface Water Treatment Rule
Aug 1, 1995 Aug 31, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 1995 Surface Water Treatment Rule
Jul 1, 1995 Jul 31, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 1995 Surface Water Treatment Rule
Jul 1, 1995 Jul 31, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 1995 Surface Water Treatment Rule
Jun 1, 1995 Jun 30, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 1995 Surface Water Treatment Rule
Jun 1, 1995 Jun 30, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 1995 Surface Water Treatment Rule
Jan 1, 1995 Jan 31, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1995 Surface Water Treatment Rule
Jan 1, 1995 Jan 31, 1995 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 1995 Surface Water Treatment Rule
Nov 1, 1994 Nov 30, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Nov 30, 1994 Surface Water Treatment Rule
Nov 1, 1994 Nov 30, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Nov 30, 1994 Surface Water Treatment Rule
Oct 1, 1994 Oct 31, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 1994 Surface Water Treatment Rule
Oct 1, 1994 Oct 31, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 1994 Surface Water Treatment Rule
Sep 1, 1994 Sep 30, 1994 Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 1994 Surface Water Treatment 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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