OHA Drinking Water Services
PWS ID: 06118 ---- COLUMBIA HILLS HOA
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
    Sep 27, 2023 - Sep 28, 2023 Oct 09, 2023 5 6M 0.0050 0.1390
    Sep 30, 2022 - Sep 30, 2022 Oct 10, 2022 3 3Y 0.0020 0.0000
    Sep 27, 2020 - Sep 28, 2020 Oct 06, 2020 5 3Y 0.0010 0.3480
    Jun 15, 2017 - Jun 28, 2017 Aug 09, 2017 5 YR 0.0019 1.1300
    Sep 03, 2016 - Sep 27, 2016 Oct 11, 2016 5 YR 0.0052 0.4490
    Aug 26, 2015 - Aug 30, 2015 Oct 02, 2015 5 YR 0.0024 0.9200
    Sep 14, 2014 - Sep 16, 2014 Oct 29, 2014 5 6M 0.0024 0.4960
    Aug 03, 2013 - Aug 08, 2013 Sep 03, 2013 5 6M 0.0045 0.0673
    Mar 20, 2013 - Mar 30, 2013 May 17, 2013 5 6M 0.0000 0.0409
    Sep 18, 2012 - Sep 23, 2012 Oct 29, 2012 5 6M 0.0052 0.0890
    May 05, 2012 - May 08, 2012 Jun 06, 2012 5 6M 0.0028 0.0620
    Aug 30, 2010 - Aug 30, 2010 Sep 15, 2010 6 6M 0.0006 0.0069
    Jun 29, 2009 - Jun 29, 2009 Jul 15, 2009 5 6M 0.0040 0.1350


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