OHA Drinking Water Services
OR41
PWS ID: 00587 ---- ONTARIO, CITY OF
Maximum Residual Disinfection Level (MRDL) Samples
MRDL Monitoring Requirements :: Excel Spreadsheet

Monitoring
Period
Entry
Point
Samples
Required
Samples
Collected
Period
Avg
Annual
Avg
Level
Compliance
Mar 01, 2024 DIST-A 15 15 1 0.9Y
Feb 01, 2024 DIST-A 15 15 1.07 0.9Y
Jan 01, 2024 DIST-A 15 15 1.06 0.9Y
Dec 01, 2023 DIST-A 15 15 1.14 0.9Y
Nov 01, 2023 DIST-A 15 15 0.96 0.9Y
Oct 01, 2023 DIST-A 15 15 1.01 0.9Y
Sep 01, 2023 DIST-A 15 15 0.89 0.9Y
Aug 01, 2023 DIST-A 15 15 0.77 0.9Y
Jul 01, 2023 DIST-A 15 15 0.62 0.9Y
Jun 01, 2023 DIST-A 15 15 0.8 0.9Y
May 01, 2023 DIST-A 15 15 0.9 1.0Y
Apr 01, 2023 DIST-A 15 15 0.98 1.0Y
Mar 01, 2023 DIST-A 15 15 1.04 1.0Y
Feb 01, 2023 DIST-A 15 15 0.88 0.9Y
Jan 01, 2023 DIST-A 15 15 0.95 1.0Y
Dec 01, 2022 DIST-A 15 15 0.99 1.0Y
Nov 01, 2022 DIST-A 15 15 1 1.0Y
Oct 01, 2022 DIST-A 15 15 1.00 1.0Y
Sep 01, 2022 DIST-A 15 15 1 1.0Y
Aug 01, 2022 DIST-A 15 15 1 0.9Y
Jul 01, 2022 DIST-A 15 15 0.84 0.9Y
Jun 01, 2022 DIST-A 15 15 1 0.9Y
May 01, 2022 DIST-A 15 15 0.9 0.9Y
Apr 01, 2022 DIST-A 15 15 1.0 0.9Y
Mar 01, 2022 DIST-A 15 15 0.8 0.9Y
Feb 01, 2022 DIST-A 15 15 1 0.9Y
Jan 01, 2022 DIST-A 15 15 1 0.9Y
Dec 01, 2021 DIST-A 15 15 1 1.0Y
Nov 01, 2021 DIST-A 15 15 1 1.0Y
Oct 01, 2021 DIST-A 15 15 0.9 1.0Y
Sep 01, 2021 DIST-A 15 15 0.8 1.0Y
Aug 01, 2021 DIST-A 15 15 0.85 1.0Y
Jul 01, 2021 DIST-A 15 15 1 1.0Y
Jun 01, 2021 DIST-A 15 15 1 1.0Y
May 01, 2021 DIST-A 15 15 1.0 1.0Y
Apr 01, 2021 DIST-A 15 15 1 1.0Y
Mar 01, 2021 DIST-A 15 15 0.8 1.0Y
Feb 01, 2021 DIST-A 15 15 1 1.0Y
Jan 01, 2021 DIST-A 15 15 1.17 1.0Y
Dec 01, 2020 DIST-A 15 15 1.0 1.0Y
Nov 01, 2020 DIST-A 15 15 1 1.0Y
Oct 01, 2020 DIST-A 15 15 0.9 1.0Y
Sep 01, 2020 DIST-A 15 15 0.99 1.0Y
Aug 01, 2020 DIST-A 15 15 0.99 1.0Y
Jul 01, 2020 DIST-A 15 15 0.9 1.0Y
Jun 01, 2020 DIST-A 15 15 1 1.0Y
May 01, 2020 DIST-A 15 15 1.0 1.0Y
Apr 01, 2020 DIST-A 15 15 0.99 1.0Y
Mar 01, 2020 DIST-A 15 15 1.0 1.0Y
Feb 01, 2020 DIST-A 15 15 1.1 1.0Y
Jan 01, 2020 DIST-A 15 15 1.1 1.0Y
Dec 01, 2019 DIST-A 15 15 1.1 1.0Y
Nov 01, 2019 DIST-A 15 15 1 1.0Y
Oct 01, 2019 DIST-A 15 15 0.9 1.0Y
Sep 01, 2019 DIST-A 15 15 1.0 1.0Y
Aug 01, 2019 DIST-A 15 15 0.8 1.0Y
Jul 01, 2019 DIST-A 15 15 0.95 1.0Y
Jun 01, 2019 DIST-A 15 15 1.0 1.0Y
May 01, 2019 DIST-A 15 15 1.12 1.0Y
Apr 01, 2019 DIST-A 15 15 1.0 1.0Y
Mar 01, 2019 DIST-A 15 15 1.0 1.0Y
Feb 01, 2019 DIST-A 15 15 0.96 1.0Y
Jan 01, 2019 DIST-A 15 15 1 1.0Y
Dec 01, 2018 DIST-A 15 15 1.2 1.0Y
Nov 01, 2018 DIST-A 15 15 1.1 1.0Y
Oct 01, 2018 DIST-A 18 18 1.1 1.0Y
Sep 01, 2018 DIST-A 15 15 0.8 1.0Y
Aug 01, 2018 DIST-A 15 15 0.9 1.0Y
Jul 01, 2018 DIST-A 15 15 0.8 1.0Y
Jun 01, 2018 DIST-A 15 15 0.9 1.0Y
May 01, 2018 DIST-A 15 15 1.0 1.0Y
Apr 01, 2018 DIST-A 15 15 1.2 1.0Y
Mar 01, 2018 DIST-A 15 15 1.10 1.0Y
Feb 01, 2018 DIST-A 15 15 1.0 1.0Y
Jan 01, 2018 DIST-A 15 15 1 1.1Y
Dec 01, 2017 DIST-A 15 15 0.9 1.1Y
Nov 01, 2017 DIST-A 15 15 1.1 1.2Y
Oct 01, 2017 DIST-A 15 15 1.0 1.2Y
Sep 01, 2017 DIST-A 15 15 1.01 1.2Y
Aug 01, 2017 DIST-A 15 15 1 1.2Y
Jul 01, 2017 DIST-A 15 15 0.8 1.2Y
Jun 01, 2017 DIST-A 15 15 0.8 1.2Y
May 01, 2017 DIST-A 15 15 1 1.2Y
Apr 01, 2017 DIST-A 15 15 1.43 1.2Y
Mar 01, 2017 DIST-A 15 15 1.5 1.2Y
Feb 01, 2017 DIST-A 15 15 1.1 1.1Y
Jan 01, 2017 DIST-A 15 15 1.4 1.1Y
Dec 01, 2016 DIST-A 15 15 1.8 1.1Y
Nov 01, 2016 DIST-A 15 15 2 1.0Y
Oct 01, 2016 DIST-A 15 15 1.0 0.9Y
Sep 01, 2016 DIST-A 15 15 0.97 0.9Y
Aug 01, 2016 DIST-A 15 15 0.9 0.9Y
Jul 01, 2016 DIST-A 15 15 1 0.9Y
Jun 01, 2016 DIST-A 15 15 0.7 0.9Y
May 01, 2016 DIST-A 15 15 0.82 0.9Y
Apr 01, 2016 DIST-A 15 15 1 0.9Y
Mar 01, 2016 DIST-A 15 15 0.8 0.9Y
Feb 01, 2016 DIST-A 15 15 0.9 0.9Y
Jan 01, 2016 DIST-A 15 15 0.8 0.9Y
Dec 01, 2015 DIST-A 15 15 1 0.9Y
Nov 01, 2015 DIST-A 15 15 1.42 0.9Y
Oct 01, 2015 DIST-A 15 15 0.8 0.8Y
Sep 01, 2015 DIST-A 15 15 0.8 0.8Y
Aug 01, 2015 DIST-A 15 15 0.7 0.8Y
Jul 01, 2015 DIST-A 15 15 0.86 0.8Y
Jun 01, 2015 DIST-A 18 18 1 0.8Y
May 01, 2015 DIST-A 15 15 0.7 0.8Y
Apr 01, 2015 DIST-A 15 15 0.75 0.8Y
Mar 01, 2015 DIST-A 15 15 0.7 0.8Y
Feb 01, 2015 DIST-A 15 15 1 0.8Y
Jan 01, 2015 DIST-A 15 15 0.86 0.8Y
Dec 01, 2014 DIST-A 15 15 0.76 0.8Y
Nov 01, 2014 DIST-A 15 15 0.77 0.9Y
Oct 01, 2014 DIST-A 15 15 1 0.9Y
Sep 01, 2014 DIST-A 15 15 0.8 0.8Y
Aug 01, 2014 DIST-A 15 15 0.9 0.8Y
Jul 01, 2014 DIST-A 10 15 0.9 0.8Y
Jun 01, 2014 DIST-A 10 10 0.8 0.8Y
May 01, 2014 DIST-A 10 10 0.73 0.9Y
Apr 01, 2014 DIST-A 10 10 0.8 0.9Y
Mar 01, 2014 DIST-A 10 10 0.79 0.9Y
Feb 01, 2014 DIST-A 10 10 0.84 0.9Y
Jan 01, 2014 DIST-A 10 10 1 0.9Y
Dec 01, 2013 DIST-A 10 10 0.87 0.8Y
Nov 01, 2013 DIST-A 10 9 0.9 0.8Y
Oct 01, 2013 DIST-A 10 10 0.8 0.8Y
Sep 01, 2013 DIST-A 10 9 0.7 0.9Y
Aug 01, 2013 DIST-A 10 10 0.8 0.9Y
Jul 01, 2013 DIST-A 13 12 1 0.9Y
Jun 01, 2013 DIST-A 10 10 1 0.8Y
May 01, 2013 DIST-A 10 10 0.87 0.8Y
Apr 01, 2013 DIST-A 10 10 0.8 0.8Y
Mar 01, 2013 DIST-A 10 10 0.8 0.8Y
Feb 01, 2013 DIST-A 10 10 0.81 0.8Y
Jan 01, 2013 DIST-A 10 10 0.8 0.8Y
Dec 01, 2012 DIST-A 10 9 0.87 0.8Y
Nov 01, 2012 DIST-A 10 10 0.9 0.8Y
Oct 01, 2012 DIST-A 10 10 1 0.8Y
Sep 01, 2012 DIST-A 10 10 0.7 0.8Y
Aug 01, 2012 DIST-A 10 10 0.70 0.8Y
Jul 01, 2012 DIST-A 10 10 0.7 0.8Y
Jun 01, 2012 DIST-A 10 9 0.73 0.8Y
May 01, 2012 DIST-A 10 9 1 0.8Y
Apr 01, 2012 DIST-A 10 10 0.89 0.8Y
Mar 01, 2012 DIST-A 10 10 0.8 0.8Y
Feb 01, 2012 DIST-A 10 10 0.72 0.8Y
Jan 01, 2012 DIST-A 10 9 0.8 0.8Y
Dec 01, 2011 DIST-A 10 12 0.9 0.8Y
Nov 01, 2011 DIST-A 10 12 0.823 0.8Y
Oct 01, 2011 DIST-A 10 12 0.789 0.8Y
Sep 01, 2011 DIST-A 10 12 0.798 0.9Y
Aug 01, 2011 DIST-A 10 12 0.794 0.9Y
Jul 01, 2011 DIST-A 10 12 0.834 0.9Y
Jun 01, 2011 DIST-A 10 12 0.813 0.9Y
May 01, 2011 DIST-A 10 12 0.885 0.9Y
Apr 01, 2011 DIST-A 10 12 0.844 0.8Y
Mar 01, 2011 DIST-A 10 12 0.856 0.8Y
Feb 01, 2011 DIST-A 10 12 0.881 0.9Y
Jan 01, 2011 DIST-A 10 12 0.863 0.9Y
Dec 01, 2010 DIST-A 10 12 0.893 0.9Y
Nov 01, 2010 DIST-A 10 12 0.85 0.8Y
Oct 01, 2010 DIST-A 10 12 0.893 0.9Y
Sep 01, 2010 DIST-A 10 12 0.927 0.9Y
Aug 01, 2010 DIST-A 10 12 0.843 0.8Y
Jul 01, 2010 DIST-A 10 12 0.719 0.8Y
Jun 01, 2010 DIST-A 10 12 0.813 0.9Y
May 01, 2010 DIST-A 10 12 0.820 0.9Y
Apr 01, 2010 DIST-A 10 12 0.823 0.9Y
Mar 01, 2010 DIST-A 10 12 0.927 0.9Y
Feb 01, 2010 DIST-A 10 12 0.856 0.8Y
Jan 01, 2010 DIST-A 10 12 0.85 0.9Y
Dec 01, 2009 DIST-A 10 12 0.85 0.9Y
Nov 01, 2009 DIST-A 10 12 0.925 0.9Y
Oct 01, 2009 DIST-A 10 12 0.879 0.9Y
Sep 01, 2009 DIST-A 10 12 0.783 0.9Y
Aug 01, 2009 DIST-A 10 0 0.9Y
Jul 01, 2009 DIST-A 10 0 0.9Y
Jun 01, 2009 DIST-A 10 0 0.9Y
May 01, 2009 DIST-A 10 0 0.9Y
Apr 01, 2009 DIST-A 10 12 0.748 0.9Y
Mar 01, 2009 DIST-A 10 12 0.893 0.9Y
Feb 01, 2009 DIST-A 10 12 0.895 0.9Y
Jan 01, 2009 DIST-A 10 12 0.970 0.8Y
Dec 01, 2008 DIST-A 10 12 0.849 0.8Y
Nov 01, 2008 DIST-A 10 12 0.863 0.8Y
Oct 01, 2008 DIST-A 10 12 0.845 0.8Y
Sep 01, 2008 DIST-A 10 12 0.862 0.8Y
Aug 01, 2008 DIST-A 10 15 0.775 0.8Y
Jul 01, 2008 DIST-A 10 12 0.835 0.9Y
Jun 01, 2008 DIST-A 10 12 0.835 0.8Y
May 01, 2008 DIST-A 10 12 0.890 0.9Y
Apr 01, 2008 DIST-A 10 16 0.817 0.8Y
Mar 01, 2008 DIST-A 10 12 0.840 0.8Y
Feb 01, 2008 DIST-A 10 12 0.816 0.8Y
Jan 01, 2008 DIST-A 10 12 0.877 0.8Y
Dec 01, 2007 DIST-A 10 0 0.9Y
Nov 01, 2007 DIST-A 10 12 0.893 0.9Y
Oct 01, 2007 DIST-A 10 12 0.874 0.9Y
Sep 01, 2007 DIST-A 10 12 0.855 0.9Y
Aug 01, 2007 DIST-A 10 12 0.853 0.9Y
Jul 01, 2007 DIST-A 10 12 0.778 0.9Y
Jun 01, 2007 DIST-A 10 12 0.858 0.9Y
May 01, 2007 DIST-A 10 12 0.786 0.9Y
Apr 01, 2007 DIST-A 10 12 0.868 0.9Y
Mar 01, 2007 DIST-A 0 12 0.814 0.9Y
Feb 01, 2007 DIST-A 10 12 0.880 0.9Y
Jan 01, 2007 DIST-A 10 12 0.913 0.9Y
Dec 01, 2006 DIST-A 30 12 0.948 0.8Y
Nov 01, 2006 DIST-A 10 12 0.890 0.8Y
Oct 01, 2006 DIST-A 10 12 0.898 0.8Y
Sep 01, 2006 DIST-A 10 12 0.938 0.8Y
Aug 01, 2006 DIST-A 10 12 0.936 0.8Y
Jul 01, 2006 DIST-A 10 12 0.704 0.8Y
Jun 01, 2006 DIST-A 10 12 0.853 0.8Y
May 01, 2006 DIST-A 10 12 0.854 0.7Y
Apr 01, 2006 DIST-A 10 12 0.662 0.7Y
Mar 01, 2006 DIST-A 10 12 0.850 0.7Y
Feb 01, 2006 DIST-A 10 12 0.814 0.7Y
Jan 01, 2006 DIST-A 10 12 0.674 0.7Y
Dec 01, 2005 DIST-A 10 12 0.738 0.8Y
Nov 01, 2005 DIST-A 10 12 0.828 0.8Y
Oct 01, 2005 DIST-A 10 12 0.722 0.8Y
Sep 01, 2005 DIST-A 10 12 0.668 0.8Y
Aug 01, 2005 DIST-A 10 12 0.713 0.8Y
Jul 01, 2005 DIST-A 10 12 0.667 0.8Y
Jun 01, 2005 DIST-A 10 12 0.592 0.8Y
May 01, 2005 DIST-A 10 12 0.778 0.8Y
Apr 01, 2005 DIST-A 10 12 0.850 0.8Y
Mar 01, 2005 DIST-A 10 12 0.862 0.8Y
Feb 01, 2005 DIST-A 10 12 0.922 0.8Y
Jan 01, 2005 DIST-A 10 12 0.921 0.8Y
Dec 01, 2004 DIST-A 10 12 0.879 0.8Y
Nov 01, 2004 DIST-A 10 12 0.780 0.8Y
Oct 01, 2004 DIST-A 10 12 0.768 0.7Y
Sep 01, 2004 DIST-A 10 12 0.710 0.7Y
 




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