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SHERWOOD, CITY OF

Oregon — Community Water System — PWSID: OR4100816

System Information

PWSIDOR4100816
System NameSHERWOOD, CITY OF
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 12, 1979
Last ReportedDec 23, 2025

Location & Contact

StateOregon
CitySHERWOOD
ZIP Code97140
Address15527 SW WILLAMETTE ST
OrganizationSHERWOOD, CITY OF
Phone503-925-2319

Population & Service

Population Served19,885
Service Connections5,591

Drinking Water Violations (40)

This water system has 40 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 — — — Unaddressed — Consumer Confidence Rule
Jul 1, 2021 Jul 31, 2021 Revised Total Coliform Rule MON No No — — — Resolved Jul 31, 2021 Revised Total Coliform Rule
Apr 1, 2015 Jun 30, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2014 Dec 31, 2014 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2014 Dec 31, 2014 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Dec 31, 2011 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2011 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2011 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2011 Synthetic Organic Chemicals
Oct 1, 2009 Dec 31, 2009 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2009 Synthetic Organic Chemicals
Oct 1, 2009 Dec 31, 2009 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2009 Synthetic Organic Chemicals
Jul 1, 2009 Sep 30, 2009 Diquat MR No Yes — 0.02 mg/L — Resolved Sep 30, 2009 Synthetic Organic Chemicals
Jul 1, 2009 Sep 30, 2009 Diquat MR No Yes — 0.02 mg/L — Resolved Sep 30, 2009 Synthetic Organic Chemicals
Mar 1, 2000 Mar 31, 2000 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2000 Total Coliform Rule
Mar 1, 1999 Mar 31, 1999 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 1999 Total Coliform Rule
Jan 1, 1999 Dec 31, 1999 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 1999 Nitrate Rule
Jan 1, 1999 Dec 31, 1999 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 1999 Nitrate Rule
Jan 1, 1998 Dec 31, 1998 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 1998 Nitrate Rule
Jan 1, 1998 Dec 31, 1998 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 1998 Nitrate Rule
Aug 1, 1997 Aug 31, 1997 Coliform (TCR) MR No Yes — 5% of samples — Archived Aug 31, 1997 Total Coliform Rule
Sep 1, 1996 Sep 30, 1996 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1996 Total Coliform Rule
Jul 1, 1996 Jul 31, 1996 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 1996 Total Coliform Rule
Dec 1, 1995 Dec 31, 1995 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 1995 Total Coliform Rule
Nov 1, 1995 Nov 30, 1995 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 1995 Total Coliform Rule
Jan 1, 1995 Jan 31, 1995 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 1995 Total Coliform Rule
Jul 1, 1994 — Lead and Copper Rule MR No No — TT — Resolved Sep 13, 1993 Lead and Copper Rule
Jan 1, 1994 — Lead and Copper Rule MR No No — TT — Resolved Sep 19, 1994 Lead and Copper Rule
Jan 1, 1994 — Lead and Copper Rule MR No No — TT — Resolved Sep 19, 1994 Lead and Copper Rule
Jan 1, 1994 — Lead and Copper Rule MR No No — TT — Resolved Sep 19, 1994 Lead and Copper Rule
May 1, 1993 May 31, 1993 Coliform (TCR) MCL Yes No — 5% of samples — Resolved May 31, 1993 Total Coliform Rule
Apr 1, 1993 Apr 30, 1993 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Apr 30, 1993 Total Coliform Rule
Feb 1, 1993 Feb 28, 1993 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Feb 28, 1993 Total Coliform Rule
Oct 1, 1992 Oct 31, 1992 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 1992 Total Coliform Rule
Sep 1, 1992 Sep 30, 1992 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1992 Total Coliform Rule
Jan 1, 1992 Jan 31, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jan 31, 1992 Total Coliform Rule
Oct 1, 1991 Oct 31, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 1991 Total Coliform Rule
Oct 1, 1991 Oct 31, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Archived Oct 31, 1991 Total Coliform Rule
Jul 1, 1991 Jul 31, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 1991 Total Coliform Rule
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
— — — No No — — — — — —

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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