OHA Drinking Water Services
OR41
PWS ID: 00789 ---- SANDY, 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
Apr 01, 2025 DIST-A 15 15 0.81 0.9Y
Mar 01, 2025 DIST-A 15 15 0.95 0.9Y
Feb 01, 2025 DIST-A 15 15 0.9 0.9Y
Jan 01, 2025 DIST-A 15 15 0.94 0.9Y
Dec 01, 2024 DIST-A 15 15 1.08 0.9Y
Nov 01, 2024 DIST-A 15 15 0.87 0.9Y
Oct 01, 2024 DIST-A 15 15 0.95 0.9Y
Sep 01, 2024 DIST-A 15 15 0.91 0.9Y
Aug 01, 2024 DIST-A 15 15 0.94 0.9Y
Jul 01, 2024 DIST-A 15 15 1 0.9Y
Jun 01, 2024 DIST-A 15 15 0.86 0.9Y
May 01, 2024 DIST-A 15 15 0.82 1.0Y
Apr 01, 2024 DIST-A 15 15 0.88 1.0Y
Mar 01, 2024 DIST-A 15 15 1.01 1.0Y
Feb 01, 2024 DIST-A 15 15 0.95 1.0Y
Jan 01, 2024 DIST-A 15 15 0.89 1.0Y
Dec 01, 2023 DIST-A 15 15 0.88 1.0Y
Nov 01, 2023 DIST-A 15 15 0.65 1.0Y
Oct 01, 2023 DIST-A 15 15 0.85 1.0Y
Sep 01, 2023 DIST-A 15 15 0.94 1.0Y
Aug 01, 2023 DIST-A 15 15 1.03 1.0Y
Jul 01, 2023 DIST-A 15 15 1.13 1.0Y
Jun 01, 2023 DIST-A 10 10 1.8 1.0Y
May 01, 2023 DIST-A 10 10 0.93 0.9Y
Apr 01, 2023 DIST-A 10 10 1.08 0.9Y
Mar 01, 2023 DIST-A 10 10 0.98 0.9Y
Feb 01, 2023 DIST-A 10 10 1.0 0.9Y
Jan 01, 2023 DIST-A 10 10 0.75 0.9Y
Dec 01, 2022 DIST-A 10 10 0.73 0.9Y
Nov 01, 2022 DIST-A 10 10 0.6 0.9Y
Oct 01, 2022 DIST-A 10 10 0.94 0.9Y
Sep 01, 2022 DIST-A 10 10 1.11 0.9Y
Aug 01, 2022 DIST-A 10 10 0.72 0.9Y
Jul 01, 2022 DIST-A 10 10 1.0 0.9Y
Jun 01, 2022 DIST-A 10 10 0.89 0.9Y
May 01, 2022 DIST-A 10 10 0.92 0.9Y
Apr 01, 2022 DIST-A 10 10 0.90 0.9Y
Mar 01, 2022 DIST-A 10 10 1 0.9Y
Feb 01, 2022 DIST-A 10 10 0.85 0.9Y
Jan 01, 2022 DIST-A 10 10 0.91 0.9Y
Dec 01, 2021 DIST-A 10 10 0.95 0.9Y
Nov 01, 2021 DIST-A 10 10 0.70 0.9Y
Oct 01, 2021 DIST-A 10 10 0.7 0.9Y
Sep 01, 2021 DIST-A 10 10 0.95 0.9Y
Aug 01, 2021 DIST-A 10 10 1.01 0.9Y
Jul 01, 2021 DIST-A 10 10 0.92 0.9Y
Jun 01, 2021 DIST-A 10 10 0.9 0.9Y
May 01, 2021 DIST-A 10 10 0.97 0.9Y
Apr 01, 2021 DIST-A 10 10 0.97 0.9Y
Mar 01, 2021 DIST-A 10 10 1.05 0.9Y
Feb 01, 2021 DIST-A 10 10 1.0 0.9Y
Jan 01, 2021 DIST-A 10 10 0.90 0.9Y
Dec 01, 2020 DIST-A 10 10 0.67 0.9Y
Nov 01, 2020 DIST-A 10 10 0.69 0.9Y
Oct 01, 2020 DIST-A 10 10 0.65 0.9Y
Sep 01, 2020 DIST-A 10 10 0.8 0.9Y
Aug 01, 2020 DIST-A 10 10 0.9 0.9Y
Jul 01, 2020 DIST-A 10 10 1.03 1.0Y
Jun 01, 2020 DIST-A 10 10 0.86 0.9Y
May 01, 2020 DIST-A 10 10 1 0.9Y
Apr 01, 2020 DIST-A 10 10 1 0.9Y
Mar 01, 2020 DIST-A 10 10 1.05 0.9Y
Feb 01, 2020 DIST-A 10 10 1 0.9Y
Jan 01, 2020 DIST-A 10 10 1.06 0.9Y
Dec 01, 2019 DIST-A 10 10 0.99 0.9Y
Nov 01, 2019 DIST-A 10 10 0.70 0.8Y
Oct 01, 2019 DIST-A 10 10 0.87 0.9Y
Sep 01, 2019 DIST-A 10 10 0.89 0.9Y
Aug 01, 2019 DIST-A 10 10 1.01 0.9Y
Jul 01, 2019 DIST-A 10 10 0.81 0.8Y
Jun 01, 2019 DIST-A 10 10 0.81 0.9Y
May 01, 2019 DIST-A 10 10 0.7 0.9Y
Apr 01, 2019 DIST-A 10 10 0.80 0.9Y
Mar 01, 2019 DIST-A 10 10 0.99 1.0Y
Feb 01, 2019 DIST-A 10 10 1 1.0Y
Jan 01, 2019 DIST-A 10 10 0.85 1.0Y
Dec 01, 2018 DIST-A 10 10 0.70 1.0Y
Nov 01, 2018 DIST-A 10 10 0.80 1.0Y
Oct 01, 2018 DIST-A 10 10 1.0 1.0Y
Sep 01, 2018 DIST-A 10 10 0.94 1.0Y
Aug 01, 2018 DIST-A 10 10 0.76 1.0Y
Jul 01, 2018 DIST-A 13 17 1.15 1.0Y
Jun 01, 2018 DIST-A 8 10 1.02 1.0Y
May 01, 2018 DIST-A 8 8 1.08 1.0Y
Apr 01, 2018 DIST-A 8 8 1.31 1.0Y
Mar 01, 2018 DIST-A 8 8 0.96 1.0Y
Feb 01, 2018 DIST-A 8 8 1.15 1.0Y
Jan 01, 2018 DIST-A 8 8 1.07 0.9Y
Dec 01, 2017 DIST-A 8 8 0.92 0.9Y
Nov 01, 2017 DIST-A 8 8 0.63 0.9Y
Oct 01, 2017 DIST-A 8 8 0.95 0.9Y
Sep 01, 2017 DIST-A 8 8 1.06 0.9Y
Aug 01, 2017 DIST-A 8 8 0.87 0.9Y
Jul 01, 2017 DIST-A 8 8 0.92 0.9Y
Jun 01, 2017 DIST-A 8 8 1.19 0.9Y
May 01, 2017 DIST-A 8 8 1.03 0.8Y
Apr 01, 2017 DIST-A 8 8 1.13 0.8Y
Mar 01, 2017 DIST-A 8 8 0.59 0.8Y
Feb 01, 2017 DIST-A 8 8 0.94 0.8Y
Jan 01, 2017 DIST-A 8 8 0.77 0.9Y
Dec 01, 2016 DIST-A 8 8 0.87 0.9Y
Nov 01, 2016 DIST-A 8 8 0.78 0.9Y
Oct 01, 2016 DIST-A 8 8 0.82 0.9Y
Sep 01, 2016 DIST-A 8 8 0.95 0.9Y
Aug 01, 2016 DIST-A 8 8 0.49 0.9Y
Jul 01, 2016 DIST-A 8 8 0.9 0.9Y
Jun 01, 2016 DIST-A 8 8 0.81 0.9Y
May 01, 2016 DIST-A 8 8 0.77 0.9Y
Apr 01, 2016 DIST-A 8 4 1.11 0.9Y
Mar 01, 2016 DIST-A 8 8 1.00 0.9Y
Feb 01, 2016 DIST-A 8 8 1.15 1.0Y
Jan 01, 2016 DIST-A 8 8 1.02 1.0Y
Dec 01, 2015 DIST-A 8 8 0.69 1.0Y
Nov 01, 2015 DIST-A 8 8 0.7 1.0Y
Oct 01, 2015 DIST-A 8 8 1.14 1.0Y
Sep 01, 2015 DIST-A 8 8 1.0 1.0Y
Aug 01, 2015 DIST-A 8 8 1.00 1.0Y
Jul 01, 2015 DIST-A 8 8 0.9 1.0Y
Jun 01, 2015 DIST-A 8 8 0.85 1.0Y
May 01, 2015 DIST-A 8 8 0.69 0.9Y
Apr 01, 2015 DIST-A 8 8 1.21 1.0Y
Mar 01, 2015 DIST-A 8 8 1.26 0.9Y
Feb 01, 2015 DIST-A 8 8 1.08 0.9Y
Jan 01, 2015 DIST-A 8 8 1.0 0.9Y
Dec 01, 2014 DIST-A 8 8 0.79 0.9Y
Nov 01, 2014 DIST-A 8 8 1 0.9Y
Oct 01, 2014 DIST-A 8 8 0.83 0.9Y
Sep 01, 2014 DIST-A 8 8 0.9 0.9Y
Aug 01, 2014 DIST-A 8 8 1.05 0.9Y
Jul 01, 2014 DIST-A 8 8 0.86 0.8Y
Jun 01, 2014 DIST-A 8 8 0.56 0.8Y
May 01, 2014 DIST-A 8 8 0.91 0.8Y
Apr 01, 2014 DIST-A 8 8 0.7 0.8Y
Mar 01, 2014 DIST-A 8 8 0.8 0.8Y
Feb 01, 2014 DIST-A 8 8 1.25 0.8Y
Jan 01, 2014 DIST-A 8 8 0.9 0.8Y
Dec 01, 2013 DIST-A 8 8 0.88 0.8Y
Nov 01, 2013 DIST-A 8 8 0.97 0.8Y
Oct 01, 2013 DIST-A 8 8 0.8 0.7Y
Sep 01, 2013 DIST-A 8 8 0.6 0.7Y
Aug 01, 2013 DIST-A 8 8 0.66 0.7Y
Jul 01, 2013 DIST-A 8 8 0.74 0.8Y
Jun 01, 2013 DIST-A 8 8 0.8 0.8Y
May 01, 2013 DIST-A 8 8 0.79 0.8Y
Apr 01, 2013 DIST-A 8 8 0.54 0.8Y
Mar 01, 2013 DIST-A 8 8 0.88 0.8Y
Feb 01, 2013 DIST-A 8 8 0.79 0.8Y
Jan 01, 2013 DIST-A 8 8 0.83 0.8Y
Dec 01, 2012 DIST-A 8 8 0.7 0.8Y
Nov 01, 2012 DIST-A 8 8 0.44 0.8Y
Oct 01, 2012 DIST-A 8 8 0.74 0.8Y
Sep 01, 2012 DIST-A 8 8 0.74 0.8Y
Aug 01, 2012 DIST-A 8 8 1.01 0.8Y
Jul 01, 2012 DIST-A 8 8 0.85 0.8Y
Jun 01, 2012 DIST-A 8 8 0.94 0.8Y
May 01, 2012 DIST-A 8 8 0.88 0.8Y
Apr 01, 2012 DIST-A 8 8 0.78 0.8Y
Mar 01, 2012 DIST-A 8 8 0.72 0.8Y
Feb 01, 2012 DIST-A 8 8 0.6 0.8Y
Jan 01, 2012 DIST-A 8 8 0.73 0.8Y
Dec 01, 2011 DIST-A 8 8 0.99 0.8Y
Nov 01, 2011 DIST-A 8 8 0.74 0.8Y
Oct 01, 2011 DIST-A 8 8 0.7300 0.8Y
Sep 01, 2011 DIST-A 8 8 0.8950 0.8Y
Aug 01, 2011 DIST-A 8 8 0.8850 0.8Y
Jul 01, 2011 DIST-A 8 8 0.8350 0.7Y
Jun 01, 2011 DIST-A 8 8 0.80 0.7Y
May 01, 2011 DIST-A 8 8 0.7850 0.7Y
Apr 01, 2011 DIST-A 8 8 0.8050 0.7Y
Mar 01, 2011 DIST-A 8 8 0.8500 0.7Y
Feb 01, 2011 DIST-A 8 8 0.7800 0.7Y
Jan 01, 2011 DIST-A 8 8 0.62 0.7Y
Dec 01, 2010 DIST-A 8 8 0.83 0.7Y
Nov 01, 2010 DIST-A 8 8 0.78 0.7Y
Oct 01, 2010 DIST-A 11 11 0.6 0.7Y
Sep 01, 2010 DIST-A 8 8 0.50 0.7Y
Aug 01, 2010 DIST-A 8 8 0.66 0.7Y
Jul 01, 2010 DIST-A 8 8 0.7 0.7Y
Jun 01, 2010 DIST-A 8 8 0.7 0.7Y
May 01, 2010 DIST-A 8 8 0.76 0.7Y
Apr 01, 2010 DIST-A 8 4 0.62 0.7Y
Mar 01, 2010 DIST-A 8 8 0.80 0.7Y
Feb 01, 2010 DIST-A 8 8 0.75 0.7Y
Jan 01, 2010 DIST-A 8 8 0.7 0.7Y
Dec 01, 2009 DIST-A 8 8 1.06 0.7Y
Nov 01, 2009 DIST-A 8 8 0.76 0.6Y
Oct 01, 2009 DIST-A 8 8 0.59 0.6Y
Sep 01, 2009 DIST-A 8 8 0.67 0.5Y
Aug 01, 2009 DIST-A 8 8 0.81 0.5Y
Jul 01, 2009 DIST-A 8 8 0.6 0.5Y
Jun 01, 2009 DIST-A 8 8 0.84 0.6Y
May 01, 2009 DIST-A 8 8 0.5Y
Apr 01, 2009 DIST-A 8 8 0.59 0.5Y
Mar 01, 2009 DIST-A 8 8 0.8 0.6Y
Feb 01, 2009 DIST-A 8 8 0.79 0.6Y
Jan 01, 2009 DIST-A 8 8 0.96 0.6Y
Dec 01, 2008 DIST-A 8 8 0.6Y
Nov 01, 2008 DIST-A 8 8 0.7Y
Oct 01, 2008 DIST-A 8 8 0.5 0.8Y
Sep 01, 2008 DIST-A 8 8 0.73 0.8Y
Aug 01, 2008 DIST-A 8 7 0.48 0.8Y
Jul 01, 2008 DIST-A 8 7 1 0.7Y
Jun 01, 2008 DIST-A 8 8 0.7Y
May 01, 2008 DIST-A 8 7 0.7 0.7Y
Apr 01, 2008 DIST-A 7 7 0.7 0.7Y
Mar 01, 2008 DIST-A 7 7 1 0.7Y
Feb 01, 2008 DIST-A 7 7 1 0.7Y
Jan 01, 2008 DIST-A 7 7 1 0.7Y
Dec 01, 2007 DIST-A 7 7 1 0.7Y
Nov 01, 2007 DIST-A 7 7 0.90 0.6Y
Oct 01, 2007 DIST-A 7 7 0.76 0.6Y
Sep 01, 2007 DIST-A 7 7 0.65 0.6Y
Aug 01, 2007 DIST-A 7 7 0 0.6Y
Jul 01, 2007 DIST-A 7 7 0.77 0.7Y
Jun 01, 2007 DIST-A 7 7 0.5 0.7Y
May 01, 2007 DIST-A 7 7 0.48 0.7Y
Apr 01, 2007 DIST-A 7 7 0.42 0.7Y
Mar 01, 2007 DIST-A 7 7 0.65 0.7Y
Feb 01, 2007 DIST-A 7 7 0.77 0.7Y
Jan 01, 2007 DIST-A 7 7 1 0.7Y
Dec 01, 2006 DIST-A 7 7 0.79 0.7Y
Nov 01, 2006 DIST-A 7 7 0.66 0.7Y
Oct 01, 2006 DIST-A 7 7 0.6 0.7Y
Sep 01, 2006 DIST-A 7 7 0.8 0.6Y
Aug 01, 2006 DIST-A 7 7 1 0.6Y
Jul 01, 2006 DIST-A 7 7 0.8 0.6Y
Jun 01, 2006 DIST-A 7 3 0.57 0.6Y
May 01, 2006 DIST-A 7 7 0.6 0.6Y
Apr 01, 2006 DIST-A 7 7 0.57 0.6Y
Mar 01, 2006 DIST-A 7 7 0.67 0.6Y
Feb 01, 2006 DIST-A 7 7 0.63 0.6Y
Jan 01, 2006 DIST-A 7 7 0.6 0.6Y
Dec 01, 2005 DIST-A 7 7 0.7 0.5Y
Nov 01, 2005 DIST-A 7 7 0.4 0.5Y
Oct 01, 2005 DIST-A 7 7 0.29 0.5Y
Sep 01, 2005 DIST-A 7 7 0.70 0.5Y
Aug 01, 2005 DIST-A 7 7 0.77 0.6Y
Jul 01, 2005 DIST-A 7 7 0.6 0.6Y
Jun 01, 2005 DIST-A 7 7 0.5 0.6Y
May 01, 2005 DIST-A 7 7 0.7 0.6Y
Apr 01, 2005 DIST-A 7 7 0.6 0.6Y
Mar 01, 2005 DIST-A 7 7 0.66 0.6Y
Feb 01, 2005 DIST-A 7 7 0.5 0.6Y
Jan 01, 2005 DIST-A 7 7 0.6Y
Dec 01, 2004 DIST-A 7 7 0.52 0.7Y
Nov 01, 2004 DIST-A 10 10 0.5 0.7Y
Oct 01, 2004 DIST-A 9 10 0.40 0.7Y
Sep 01, 2004 DIST-A 6 7 1.1 0.9Y
 



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