OHA Drinking Water Services
MRDL Monitoring Requirements :: Excel Spreadsheet

PWS ID: 01513 ---- HILLSBORO, CITY OF
Maximum Residual Disinfection Level (MRDL) Samples

Monitoring
Period
Received Entry
Point
Samples
Required
Samples
Collected
Period
Avg
Annual
Avg
Level
Compliance
Apr 01, 2021 DIST-A 90 100 0.88 0.9Y
Mar 01, 2021 DIST-A 90 100 1 0.9Y
Feb 01, 2021 DIST-A 90 100 0.93 0.9Y
Jan 01, 2021 DIST-A 90 100 0.89 0.9Y
Dec 01, 2020 DIST-A 90 98 0.9 0.9Y
Nov 01, 2020 DIST-A 90 97 0.82 0.9Y
Oct 01, 2020 DIST-A 90 100 0.83 0.9Y
Sep 01, 2020 DIST-A 90 99 0.83 0.9Y
Aug 01, 2020 DIST-A 90 97 0.97 0.9Y
Jul 01, 2020 DIST-A 90 100 0.97 0.9Y
Jun 01, 2020 DIST-A 90 100 0.84 0.9Y
May 01, 2020 DIST-A 90 98 0.84 0.9Y
Apr 01, 2020 DIST-A 90 99 0.92 0.9Y
Mar 01, 2020 DIST-A 90 100 0.8 0.9Y
Feb 01, 2020 DIST-A 90 100 1 0.9Y
Jan 01, 2020 DIST-A 90 100 0.97 0.9Y
Dec 01, 2019 DIST-A 90 98 0.88 0.9Y
Nov 01, 2019 DIST-A 90 99 0.89 0.9Y
Oct 01, 2019 DIST-A 90 98 0.82 0.9Y
Sep 01, 2019 DIST-A 90 97 0.8 0.9Y
Aug 01, 2019 DIST-A 90 99 0.96 0.9Y
Jul 01, 2019 DIST-A 90 100 0.97 0.9Y
Jun 01, 2019 DIST-A 90 100 1.0 0.9Y
May 01, 2019 DIST-A 90 98 0.9 0.9Y
Apr 01, 2019 DIST-A 90 99 0.93 0.9Y
Mar 01, 2019 DIST-A 90 99 0.9 0.9Y
Feb 01, 2019 DIST-A 90 100 0.9 0.9Y
Jan 01, 2019 DIST-A 90 100 0.9 0.9Y
Dec 01, 2018 DIST-A 90 99 0.88 0.9Y
Nov 01, 2018 DIST-A 90 99 0.79 0.9Y
Oct 01, 2018 DIST-A 90 100 0.82 0.9Y
Sep 01, 2018 DIST-A 90 100 0.9 0.9Y
Aug 01, 2018 DIST-A 90 100 0.95 0.9Y
Jul 01, 2018 DIST-A 90 100 0.96 0.9Y
Jun 01, 2018 DIST-A 90 100 0.89 0.9Y
May 01, 2018 DIST-A 90 103 0.9 0.9Y
Apr 01, 2018 DIST-A 90 98 0.87 0.9Y
Mar 01, 2018 DIST-A 90 100 0.87 0.9Y
Feb 01, 2018 DIST-A 90 99 0.9 0.9Y
Jan 01, 2018 DIST-A 90 99 0.89 0.9Y
Dec 01, 2017 DIST-A 90 96 0.9 0.9Y
Nov 01, 2017 DIST-A 90 99 0.86 0.9Y
Oct 01, 2017 DIST-A 90 98 0.8 0.9Y
Sep 01, 2017 DIST-A 90 100 0.87 0.9Y
Aug 01, 2017 DIST-A 90 99 1 0.9Y
Jul 01, 2017 DIST-A 90 99 0.92 0.8Y
Jun 01, 2017 DIST-A 90 97 0.85 0.9Y
May 01, 2017 DIST-A 90 100 0.77 0.9Y
Apr 01, 2017 DIST-A 90 99 0.79 0.9Y
Mar 01, 2017 DIST-A 90 97 0.87 0.9Y
Feb 01, 2017 DIST-A 90 96 0.9 0.9Y
Jan 01, 2017 DIST-A 90 94 0.93 0.9Y
Dec 01, 2016 DIST-A 90 100 0.94 0.9Y
Nov 01, 2016 DIST-A 90 99 0.8 0.9Y
Oct 01, 2016 DIST-A 90 99 0.7 0.9Y
Sep 01, 2016 DIST-A 90 99 0.79 0.9Y
Aug 01, 2016 DIST-A 90 119 0.9 0.9Y
Jul 01, 2016 DIST-A 80 99 1 0.9Y
Jun 01, 2016 DIST-A 80 90 1 0.9Y
May 01, 2016 DIST-A 80 115 1 0.9Y
Apr 01, 2016 DIST-A 80 92 0.8 0.9Y
Mar 01, 2016 DIST-A 80 112 1 0.9Y
Feb 01, 2016 DIST-A 80 90 1 0.9Y
Jan 01, 2016 DIST-A 80 92 1 0.9Y
Dec 01, 2015 DIST-A 80 86 1 0.9Y
Nov 01, 2015 DIST-A 80 88 0.7 0.9Y
Oct 01, 2015 DIST-A 80 92 0.7 0.9Y
Sep 01, 2015 DIST-A 80 101 0.7 0.9Y
Aug 01, 2015 DIST-A 80 92 0.8 0.9Y
Jul 01, 2015 DIST-A 80 91 0.8 0.9Y
Jun 01, 2015 DIST-A 83 117 1 0.9Y
May 01, 2015 DIST-A 80 90 1 0.9Y
Apr 01, 2015 DIST-A 80 91 1 0.9Y
Mar 01, 2015 DIST-A 80 92 1 0.9Y
Feb 01, 2015 DIST-A 80 91 1 0.9Y
Jan 01, 2015 DIST-A 80 86 1 0.9Y
Dec 01, 2014 DIST-A 80 88 0.9 0.9Y
Nov 01, 2014 DIST-A 80 87 1 0.9Y
Oct 01, 2014 DIST-A 80 92 0.7 0.9Y
Sep 01, 2014 DIST-A 70 91 0.8 0.9Y
Aug 01, 2014 DIST-A 73 82 1 0.9Y
Jul 01, 2014 DIST-A 70 79 1 0.9Y
Jun 01, 2014 DIST-A 70 76 1 0.9Y
May 01, 2014 DIST-A 70 79 0.8 0.9Y
Apr 01, 2014 DIST-A 70 80 0.8 0.9Y
Mar 01, 2014 DIST-A 70 80 0.8 0.9Y
Feb 01, 2014 DIST-A 70 78 1 0.9Y
Jan 01, 2014 DIST-A 70 80 0.8 0.9Y
Dec 01, 2013 DIST-A 70 77 1 0.9Y
Nov 01, 2013 DIST-A 70 81 0.8 0.9Y
Oct 01, 2013 DIST-A 70 93 1 0.9Y
Sep 01, 2013 DIST-A 70 78 0.8 0.9Y
Aug 01, 2013 DIST-A 70 78 1 0.9Y
Jul 01, 2013 DIST-A 70 100 0.9 0.8Y
Jun 01, 2013 DIST-A 70 77 0.8 0.8Y
May 01, 2013 DIST-A 73 81 1 0.8Y
Apr 01, 2013 DIST-A 70 98 1 0.8Y
Mar 01, 2013 DIST-A 70 78 0.8 0.8Y
Feb 01, 2013 DIST-A 73 82 1 0.8Y
Jan 01, 2013 DIST-A 70 75 0.9 0.8Y
Dec 01, 2012 DIST-A 70 74 0.8 0.7Y
Nov 01, 2012 DIST-A 70 77 0.7 0.7Y
Oct 01, 2012 DIST-A 76 112 0.7 0.7Y
Sep 01, 2012 DIST-A 70 80 0.7 0.7Y
Aug 01, 2012 DIST-A 70 79 0.8 0.7Y
Jul 01, 2012 DIST-A 70 79 0.8 0.7Y
Jun 01, 2012 DIST-A 73 81 0.7 0.7Y
May 01, 2012 DIST-A 70 80 0.7 0.7Y
Apr 01, 2012 DIST-A 70 80 0.7 0.7Y
Mar 01, 2012 Apr 09, 2012 DIST-A 70 80 0.74 0.7Y
Feb 01, 2012 Mar 08, 2012 DIST-A 70 79 0.77 0.7Y
Jan 01, 2012 Feb 07, 2012 DIST-A 70 89 0.75 0.7Y
Dec 01, 2011 Jan 10, 2012 DIST-A 70 80 0.8 0.8Y
Nov 01, 2011 Dec 08, 2011 DIST-A 70 80 0.7 0.8Y
Oct 01, 2011 Nov 07, 2011 DIST-A 70 80 0.7 0.8Y
Sep 01, 2011 Oct 04, 2011 DIST-A 70 80 0.78 0.8Y
Aug 01, 2011 Sep 01, 2011 DIST-A 70 100 0.7860 0.8Y
Jul 01, 2011 Aug 05, 2011 DIST-A 73 82 0.72 0.8Y
Jun 01, 2011 Jul 07, 2011 DIST-A 70 80 0.72 0.8Y
May 01, 2011 Jun 09, 2011 DIST-A 70 94 0.7 0.8Y
Apr 01, 2011 May 02, 2011 DIST-A 70 80 0.74 0.8Y
Mar 01, 2011 Apr 01, 2011 DIST-A 70 80 0.79 0.8Y
Feb 01, 2011 Mar 04, 2011 DIST-A 70 75 0.76 0.8Y
Jan 01, 2011 Feb 10, 2011 DIST-A 70 100 0.82 0.8Y
Dec 01, 2010 Dec 30, 2010 DIST-A 70 79 0.85 0.8Y
Nov 01, 2010 Dec 01, 2010 DIST-A 70 97 0.7 0.7Y
Oct 01, 2010 Nov 01, 2010 DIST-A 73 81 0.75 0.7Y
Sep 01, 2010 Oct 01, 2010 DIST-A 70 80 0.71 0.7Y
Aug 01, 2010 Sep 08, 2010 DIST-A 70 99 0.82 0.7Y
Jul 01, 2010 Aug 05, 2010 DIST-A 70 80 0.81 0.7Y
Jun 01, 2010 Jul 06, 2010 DIST-A 70 100 0.71 0.7Y
May 01, 2010 May 27, 2010 DIST-A 70 80 0.71 0.7Y
Apr 01, 2010 Apr 29, 2010 DIST-A 70 70 0.74 0.7Y
Mar 01, 2010 Apr 08, 2010 DIST-A 70 100 0.73 0.8Y
Feb 01, 2010 Mar 03, 2010 DIST-A 70 77 0.75 0.8Y
Jan 01, 2010 Feb 10, 2010 DIST-A 70 72 0.74 0.8Y
Dec 01, 2009 Jan 11, 2010 DIST-A 73 101 0.75 0.8Y
Nov 01, 2009 Dec 09, 2009 DIST-A 70 78 0.66 0.8Y
Oct 01, 2009 Nov 05, 2009 DIST-A 70 80 0.74 0.8Y
Sep 01, 2009 Oct 13, 2009 DIST-A 70 100 0.76 0.8Y
Aug 01, 2009 Sep 10, 2009 DIST-A 70 80 0.76 0.8Y
Jul 01, 2009 Sep 25, 2009 DIST-A 70 79 0.77 0.8Y
Jun 01, 2009 Sep 25, 2009 DIST-A 70 100 0.8 0.8Y
May 01, 2009 DIST-A 90 96 0.77 0.8Y
Apr 01, 2009 May 20, 2009 DIST-A 90 96 0.78 0.8Y
Mar 01, 2009 May 20, 2009 DIST-A 90 119 0.8 0.8Y
Feb 01, 2009 May 20, 2009 DIST-A 90 95 0.75 0.8Y
Jan 01, 2009 Feb 11, 2009 DIST-A 90 95 0.8 0.8Y
Dec 01, 2008 Jan 09, 2009 DIST-A 90 94 0.80 0.8Y
Nov 01, 2008 Dec 10, 2008 DIST-A 90 94 0.65 0.7Y
Oct 01, 2008 Nov 07, 2008 DIST-A 90 96 0.67 0.8Y
Sep 01, 2008 Oct 08, 2008 DIST-A 90 95 0.73 0.8Y
Aug 01, 2008 Sep 02, 2008 DIST-A 90 96 0.84 0.8Y
Jul 01, 2008 Aug 08, 2008 DIST-A 90 120 0.78 1Y
Jun 01, 2008 Jul 10, 2008 DIST-A 90 96 0.78 1Y
 




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