OHA Drinking Water Services
PWS ID: 00665 ---- TUALATIN VALLEY WATER DISTRICT
Lead & Copper Summary Results

Lead and Copper Compliance Actions
  • 1 lead and copper compliance schedule found for this system:  View schedules


  • Lead and copper results shown are the 90th percentile summary results. See all detailed results.
    Consumer notice date is the date water customers were notified of their tap results. Consumer notice records are not available prior to 2016.

    Action Levels:  Lead = 0.015 mg/L;  Copper = 1.3 mg/L. Action level exceedances are indicated with bold red text.

    Sample Dates Date
    Received
    Sample
    Count
    Duration Lead
    (mg/L)
    Copper
    (mg/L)
    Consumer
    Notice Date
    Aug 14, 2023 - Aug 18, 2023 Sep 26, 2023 104 6M 0.0090 0.1100 09/27/2023
    May 18, 2023 - May 25, 2023 Jul 06, 2023 109 6M 0.0070 0.0940 07/10/2023
    Oct 06, 2022 - Oct 13, 2022 Nov 09, 2022 107 6M 0.0130 0.1210 11/17/2022
    Sep 20, 2021 - Sep 28, 2021 Oct 06, 2021 95 YR 0.0150 0.1910 10/29/2021
    Aug 17, 2020 - Aug 21, 2020 Sep 21, 2020 99 YR 0.0110 0.2490 09/27/2020
    Aug 19, 2019 - Aug 27, 2019 Sep 24, 2019 100 YR 0.0120 0.1990 09/27/2019
    Aug 17, 2018 - Aug 29, 2018 Sep 26, 2018 99 YR 0.0100 0.2740 10/03/2018
    Sep 20, 2017 - Oct 05, 2017 Nov 10, 2017 112 6M 0.0090 0.2410 11/16/2017
    Apr 17, 2017 - Apr 28, 2017 Jul 10, 2017 113 6M 0.0077 0.1730 05/17/2017
    Oct 15, 2016 - Oct 26, 2016 Nov 18, 2016 112 6M 0.0174 0.3100 12/05/2016
    Mar 15, 2016 - Apr 27, 2016 Jun 10, 2016 114 6M 0.0130 0.2880
    Oct 26, 2015 - Nov 12, 2015 Jan 08, 2016 114 6M 0.0141 0.3360
    Apr 28, 2015 - May 12, 2015 Jul 10, 2015 112 6M 0.0141 0.3260
    Sep 30, 2014 - Oct 15, 2014 Dec 10, 2014 114 6M 0.0142 0.3350
    Jan 07, 2014 - May 27, 2014 Jul 10, 2014 111 6M 0.0128 0.2930
    Nov 09, 2013 - Nov 18, 2013 Jan 10, 2014 108 6M 0.0159 0.5000
    May 08, 2013 - May 21, 2013 Jul 10, 2013 111 6M 0.0100 0.2700
    Oct 10, 2012 - Oct 23, 2012 Jan 09, 2013 112 6M 0.0120 0.3400
    May 09, 2012 - May 23, 2012 Jul 10, 2012 112 6M 0.0110 0.2700
    Oct 11, 2011 - Oct 24, 2011 Dec 08, 2011 111 6M 0.0120 0.2900
    Apr 27, 2011 - May 17, 2011 Jul 07, 2011 114 6M 0.0090 0.2700
    Oct 14, 2010 - Oct 22, 2010 Jan 07, 2011 112 6M 0.0120 0.3400
    Apr 02, 2010 - May 10, 2010 Jul 08, 2010 110 6M 0.0100 0.3300
    Oct 14, 2009 - Oct 26, 2009 Jan 08, 2010 115 6M 0.0090 0.3700
    May 08, 2009 - May 21, 2009 Jul 09, 2009 113 6M 0.0100 0.2700
    Jul 01, 2008 - Dec 31, 2008 Jan 09, 2009 116 6M 0.0100 0.3300
    Nov 17, 2007 - Dec 07, 2007 Jan 10, 2008 111 6M 0.0110 0.2800
    May 17, 2007 - Jun 01, 2007 Jul 10, 2007 116 6M 0.0130 0.2800
    Oct 19, 2006 - Nov 02, 2006 Jan 10, 2007 116 6M 0.0170 0.5000
    May 22, 2006 - May 26, 2006 Jul 10, 2006 117 6M 0.0090 0.3100
    Oct 15, 2005 - Oct 31, 2005 Dec 09, 2005 115 6M 0.0120 0.3500
    May 18, 2005 - Jun 01, 2005 Jul 08, 2005 119 6M 0.0150 0.3900
    Oct 19, 2004 - Nov 22, 2004 Dec 30, 2004 111 6M 0.0150 0.0420
    May 02, 2004 - Jun 25, 2004 Jul 09, 2004 123 6M 0.0080 0.3600
    Oct 21, 2003 - Nov 04, 2003 Dec 10, 2003 110 6M 0.0080 0.3300
    May 10, 2003 - Jun 30, 2003 Jul 11, 2003 113 6M 0.0104 0.3450
    Oct 23, 2002 - Nov 03, 2002 Jan 10, 2003 147 6M 0.0170 0.5000
    May 06, 2002 - May 21, 2002 Jul 10, 2002 133 6M 0.0130 0.4200
    Nov 09, 2001 - Nov 22, 2001 Jan 08, 2002 134 6M 0.0200 0.8100
    May 10, 2001 - May 22, 2001 Jul 09, 2001 144 6M 0.0170 0.6200
    Sep 14, 2000 - Sep 22, 2000 Jan 10, 2001 124 6M 0.0220 0.7100
    Apr 07, 2000 - May 22, 2000 Jul 10, 2000 125 6M 0.0150 0.6600
    Oct 19, 1999 - Nov 01, 1999 Jan 13, 2000 126 6M 0.0120 0.6000
    May 12, 1999 - Jun 06, 1999 Jul 08, 1999 126 6M 0.0210 0.6400
    Nov 05, 1998 - Nov 17, 1998 Jan 13, 1999 127 6M 0.0190 0.6600
    May 07, 1998 - May 29, 1998 Jul 09, 1999 129 6M 0.0150 0.6700
    Nov 09, 1997 - Nov 21, 1997 Jan 09, 1998 129 6M 0.0130 0.6800
    May 24, 1997 - Jun 05, 1997 Jul 16, 1997 130 6M 0.0120 0.6500
    Jul 01, 1992 - Dec 08, 1992 Jan 08, 1993 100 6M 0.0290 0.9880
    Jan 01, 1992 - Jun 10, 1992 Jul 10, 1992 100 6M 0.0280 1.4100



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