OHA Drinking Water Services
OR41
PWS ID: 00061 ---- KNAPPA WATER ASSOCIATION
Lead & Copper Summary Results

Lead and Copper Compliance Actions
  • No lead and copper schedules found.


  • 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
    Jul 13, 2021 - Jul 14, 2021 Jun 08, 2022 10 3Y 0.0000 0.0790
    Jun 11, 2018 - Jun 20, 2018 Sep 04, 2018 10 3Y 0.0000 0.1000
    Jun 13, 2015 - Jun 16, 2015 Sep 08, 2015 10 3Y 0.0050 0.0960
    Jun 20, 2012 - Jun 20, 2012 Jul 11, 2012 10 3Y 0.0000 0.0760
    Jul 24, 2009 - Aug 05, 2009 Sep 10, 2009 10 3Y 0.0030 0.1200
    Aug 22, 2006 - Aug 23, 2006 Oct 03, 2006 10 3Y 0.0020 0.1000
    Jul 15, 2003 - Jul 15, 2003 Aug 06, 2003 10 3Y 0.0040 0.0700
    Jan 01, 1999 - Jun 27, 2000 Jul 21, 2000 10 3Y 0.0120 0.1200
    Jan 01, 1997 - Jul 15, 1997 Jul 30, 1997 10 YR 0.0020 0.1700
    Jan 01, 1996 - Jun 18, 1996 Jul 08, 1996 10 YR 0.0030 0.1300
    Jan 01, 1995 - Jun 20, 1995 Jul 14, 1995 10 YR 0.0040 0.1700
    Jan 01, 1994 - Jan 18, 1994 Feb 16, 1994 20 6M 0.0080 0.1400
    Jan 01, 1993 - Jun 15, 1993 Jul 21, 1993 20 6M 0.0090 0.1200



    More information for this water system: SDWIS ID 3684
    System Info  ::  Report for Lenders  ::  Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Contacts & Advisories  ::  Site Visits  ::  Public Notice
    Coliform Summary  ::  Coliform Results  ::  Coliform Schedules  ::  LT2  ::  GW/GWUDI Source Details  ::  Plan Review  ::  Annual Fee
    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.

    Information for all water systems:
    Water System Inventory  ::  Water System Surveys  ::  Outstanding Performers  ::  Treatment Plant Inspections  ::  Treatment  ::  Plan Reviews
    Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Deficiencies  ::  System Scores  ::  Exceedances  ::  Public Notices
    Water Advisories  ::  Contact Reports  ::  Cyanotoxins  ::  PFAS  ::  Post-wildfire VOCs  ::  Fluoride

    Introduction  ::  Data Search Options  ::  Water System Search  ::  DWS Home  ::  DWS Rules

    Need help? Email Drinking Water Services for assistance.Staff/Partner Login