OHA Drinking Water Services
OR41
PWS ID: 00937 ---- WELCHES WATER COMPANY
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
    Jun 15, 2021 - Jun 15, 2021 Jun 22, 2021 5 3Y 0.0014 0.0149
    Aug 04, 2020 - Aug 04, 2020 Aug 12, 2020 5 6M 0.0014 0.0820
    Jun 21, 2019 - Jun 21, 2019 Jul 18, 2019 5 6M 0.0000 0.0350
    Aug 09, 2018 - Aug 09, 2018 Aug 20, 2018 5 6M 0.0016 0.3013
    Sep 20, 2017 - Sep 20, 2017 Oct 04, 2017 5 6M 0.0374 0.4530
    Jul 18, 2016 - Jul 18, 2016 Aug 03, 2016 5 3Y 0.0235 0.3450
    Sep 12, 2013 - Sep 18, 2013 Sep 30, 2013 5 3Y 0.0049 0.4860
    Sep 12, 2013 - Sep 18, 2013 5 3Y 0.0049 0.4860
    Jun 17, 2009 - Jun 18, 2009 Jul 14, 2009 5 3Y 0.0010 0.1950
    Jan 01, 1999 - Dec 14, 1999 Jun 25, 2002 5 YR 0.0047 0.1760
    Jan 01, 1997 - Dec 20, 1997 Jan 23, 1998 5 YR 0.0070 0.5800
    Jan 01, 1995 - Jul 10, 1995 Sep 21, 1995 5 YR 0.0080 1.0000
    Jan 01, 1994 - Jun 21, 1994 Jun 30, 1994 5 6M 0.0100 0.9000
    Jul 01, 1993 - Oct 23, 1993 Dec 27, 1993 5 6M 0.0110 0.8700



    More information for this water system: SDWIS ID 3477
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    Chemical Summary  ::  Chemical Results  ::  Chemical Schedules  ::  Chemical Schedule Summary  ::  Arsenic RAA  ::  Cyanotoxins  ::  PFAS
    Lead & Copper  ::  Corrosion Control (LCR)  ::  DBP Sample Sites  ::  FANLs  ::  MRDL  ::  GWR 4-Log  ::  Turbidity  ::  SWTR  ::  LRAA
    Something missing? The new Chemical Results page replaces many pages, including arsenic and nitrate.

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