OHA Drinking Water Services
OR41
PWS ID: 00058 ---- WILLOW DALE WATER DISTRICT
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
Jun 01, 2024 DIST-A 1 1 1.5 1.4Y
May 01, 2024 DIST-A 1 1 2 1.4Y
Apr 01, 2024 DIST-A 1 1 1 1.3Y
Mar 01, 2024 DIST-A 1 1 1.2 1.3Y
Feb 01, 2024 DIST-A 1 1 1.2 1.3Y
Jan 01, 2024 DIST-A 1 1 1.5 1.3Y
Nov 01, 2023 DIST-A 1 1 1.5 1.2Y
Oct 01, 2023 DIST-A 1 1 1.5 1.1Y
Aug 01, 2023 DIST-A 1 1 1 1.0Y
Jul 01, 2023 DIST-A 1 1 1.4 1.0Y
Jun 01, 2023 DIST-A 1 1 1.5 1.0Y
May 01, 2023 DIST-A 1 1 1 1.0Y
Apr 01, 2023 DIST-A 1 1 1 1.0Y
Mar 01, 2023 DIST-A 1 1 1.5 1.0Y
Feb 01, 2023 DIST-A 1 1 1 1.0Y
Jan 01, 2023 DIST-A 1 1 1 1.0Y
Dec 01, 2022 DIST-A 1 1 0.8 1.0Y
Nov 01, 2022 DIST-A 1 1 0.3 1.0Y
Oct 01, 2022 DIST-A 1 1 0.7 1.1Y
Sep 01, 2022 DIST-A 1 1 1 1.1Y
Jun 01, 2022 DIST-A 1 1 1.2 1.1Y
May 01, 2022 DIST-A 1 1 1.3 1.0Y
Apr 01, 2022 DIST-A 1 1 1.4 0.9Y
Mar 01, 2022 DIST-A 1 1 1.5 0.9Y
Dec 01, 2021 DIST-A 1 1 0.5 0.9Y
Nov 01, 2021 DIST-A 1 1 1.5 0.9Y
Oct 01, 2021 DIST-A 1 1 0.5 0.9Y
Sep 01, 2021 DIST-A 1 1 1 1.0Y
Aug 01, 2021 DIST-A 1 1 0.5 0.9Y
Jul 01, 2021 DIST-A 1 1 1.3 1.0Y
Jun 01, 2021 DIST-A 1 1 0.5 0.9Y
May 01, 2021 DIST-A 1 1 0.7 1.0Y
Apr 01, 2021 DIST-A 1 1 1.5 1.0Y
Mar 01, 2021 DIST-A 1 1 1.2 1.0Y
Feb 01, 2021 DIST-A 1 1 0.5 1.0Y
Dec 01, 2020 DIST-A 1 1 1 1.0Y
Nov 01, 2020 DIST-A 1 1 1 1.0Y
Oct 01, 2020 DIST-A 1 1 1.3 1.0Y
Sep 01, 2020 DIST-A 1 1 0.9 1.0Y
Aug 01, 2020 DIST-A 1 1 0.7 1.0Y
Jun 01, 2020 DIST-A 1 1 1.3 1.0Y
May 01, 2020 DIST-A 1 1 1 0.9Y
Apr 01, 2020 DIST-A 1 1 1 0.9Y
Mar 01, 2020 DIST-A 1 1 1.3 1.0Y
Feb 01, 2020 DIST-A 1 1 0.1 1.0Y
Jan 01, 2020 DIST-A 1 1 1 1.1Y
Dec 01, 2019 DIST-A 1 1 1.3 1.0Y
Nov 01, 2019 DIST-A 1 1 0.6 1.0Y
Oct 01, 2019 DIST-A 1 1 1.2 1.0Y
Sep 01, 2019 DIST-A 1 1 1.1 1.0Y
Aug 01, 2019 DIST-A 1 1 0.4 1.0Y
Jul 01, 2019 DIST-A 1 1 1.2 1.1Y
May 01, 2019 DIST-A 1 1 1 1.1Y
Apr 01, 2019 DIST-A 1 1 1.4 1.1Y
Mar 01, 2019 DIST-A 1 1 1.5 1.1Y
Feb 01, 2019 DIST-A 1 1 1.3 1.0Y
Jan 01, 2019 DIST-A 1 1 0.4 1.0Y
Dec 01, 2018 DIST-A 1 1 1 1.0Y
Nov 01, 2018 DIST-A 1 1 1 1.0Y
Oct 01, 2018 DIST-A 1 1 1 1.0Y
Aug 01, 2018 DIST-A 1 1 1 1.1Y
Jul 01, 2018 DIST-A 1 1 1.3 1.1Y
Jun 01, 2018 DIST-A 1 1 1 1.0Y
May 01, 2018 DIST-A 1 1 1 1.0Y
Apr 01, 2018 DIST-A 1 1 1.1 1.0Y
Mar 01, 2018 DIST-A 1 1 0.9 1.0Y
Feb 01, 2018 DIST-A 1 1 1.3 1.0Y
Jan 01, 2018 DIST-A 1 1 0.4 1.0Y
Dec 01, 2017 DIST-A 1 1 1 1.1Y
Nov 01, 2017 DIST-A 1 1 1.3 1.1Y
Oct 01, 2017 DIST-A 1 1 1 1.1Y
Sep 01, 2017 DIST-A 1 1 1.8 1.0Y
Aug 01, 2017 DIST-A 1 1 0.7 0.9Y
Jul 01, 2017 DIST-A 1 1 0.8 1.0Y
Jun 01, 2017 DIST-A 1 1 0.6 1.0Y
May 01, 2017 DIST-A 1 1 1.2 1.1Y
Apr 01, 2017 DIST-A 1 1 1 1.0Y
Mar 01, 2017 DIST-A 1 1 1.2 1.0Y
Feb 01, 2017 DIST-A 1 1 1.5 1.0Y
Jan 01, 2017 DIST-A 1 1 1.2 1.0Y
Oct 01, 2016 DIST-A 1 1 0.5 0.9Y
Sep 01, 2016 DIST-A 1 1 0.7 0.9Y
Aug 01, 2016 DIST-A 1 1 1.2 1.0Y
Jul 01, 2016 DIST-A 1 1 1.2 1.0Y
Jun 01, 2016 DIST-A 1 1 1 1.0Y
May 01, 2016 DIST-A 1 1 0.7 1.0Y
Apr 01, 2016 DIST-A 1 1 1.2 1.0Y
Mar 01, 2016 DIST-A 1 1 0.9 1.0Y
Jan 01, 2016 DIST-A 1 1 1.3 1.0Y
Dec 01, 2015 DIST-A 1 1 0.9 0.9Y
Nov 01, 2015 DIST-A 1 1 0.5 0.9Y
Oct 01, 2015 DIST-A 1 1 0.8 1.0Y
Sep 01, 2015 DIST-A 1 1 1 1.0Y
Aug 01, 2015 DIST-A 1 1 1 1.0Y
Jul 01, 2015 DIST-A 1 1 1.2 1.0Y
Jun 01, 2015 DIST-A 1 1 1.2 1.0Y
May 01, 2015 DIST-A 1 1 1 0.9Y
Apr 01, 2015 DIST-A 1 1 1 0.9Y
Mar 01, 2015 DIST-A 1 1 1 1.0Y
Feb 01, 2015 DIST-A 1 1 0.6 1.0Y
Jan 01, 2015 DIST-A 1 1 1 1.0Y
Dec 01, 2014 DIST-A 1 1 1.05 1.1Y
Nov 01, 2014 DIST-A 1 1 0.95 1.1Y
Oct 01, 2014 DIST-A 1 1 0.5 1.1Y
Sep 01, 2014 DIST-A 1 1 1.1 1.1Y
Aug 01, 2014 DIST-A 1 1 1 1.0Y
Jul 01, 2014 DIST-A 1 1 1 1.0Y
May 01, 2014 DIST-A 1 1 1 0.9Y
Apr 01, 2014 DIST-A 1 1 1.3 1.0Y
Mar 01, 2014 DIST-A 1 1 1.2 0.9Y
Feb 01, 2014 DIST-A 1 1 1.3 0.9Y
Jan 01, 2014 DIST-A 1 1 1.2 0.9Y
Dec 01, 2013 DIST-A 1 1 1.3 0.9Y
Nov 01, 2013 DIST-A 1 1 0.89 0.8Y
Oct 01, 2013 DIST-A 1 1 0.86 0.9Y
Sep 01, 2013 DIST-A 1 1 0.06 0.9Y
Aug 01, 2013 DIST-A 1 1 1.16 0.9Y
Jul 01, 2013 DIST-A 1 1 0.93 0.9Y
Jun 01, 2013 DIST-A 1 1 0.03 0.9Y
May 01, 2013 DIST-A 1 1 1.81 0.9Y
Apr 01, 2013 DIST-A 1 1 0.04 0.8Y
Mar 01, 2013 DIST-A 1 1 1.42 0.8Y
Feb 01, 2013 DIST-A 1 1 1.09 0.8Y
Jan 01, 2013 DIST-A 1 1 1.28 0.8Y
Dec 01, 2012 DIST-A 1 1 0.47 0.8Y
Nov 01, 2012 DIST-A 1 1 1.01 0.8Y
Oct 01, 2012 DIST-A 1 1 1.05 0.8Y
Sep 01, 2012 DIST-A 1 1 0.4 0.8Y
Aug 01, 2012 DIST-A 1 1 1.1 0.8Y
Jul 01, 2012 DIST-A 1 1 1.0100 0.9Y
Jun 01, 2012 DIST-A 1 1 0.0400 0.9Y
May 01, 2012 DIST-A 1 1 0.6300 0.9Y
Apr 01, 2012 DIST-A 1 1 0.0500 0.9Y
Mar 01, 2012 DIST-A 1 1 1.1100 1.0Y
Feb 01, 2012 DIST-A 1 1 1.1300 1.0Y
Jan 01, 2012 DIST-A 1 1 1.1200 1.0Y
Dec 01, 2011 DIST-A 1 1 1.1000 0.9Y
Nov 01, 2011 DIST-A 1 1 0.5900 0.9Y
Oct 01, 2011 DIST-A 1 1 0.7800 0.9Y
Sep 01, 2011 DIST-A 1 1 1.3300 0.9Y
Aug 01, 2011 DIST-A 1 1 1.6700 0.9Y
Jul 01, 2011 DIST-A 1 1 0.7200 0.8Y
Jun 01, 2011 DIST-A 1 1 0.4600 0.8Y
May 01, 2011 DIST-A 1 1 0.6000 0.8Y
Apr 01, 2011 DIST-A 1 1 1.0300 0.8Y
Mar 01, 2011 DIST-A 1 1 1.4900 0.7Y
Feb 01, 2011 DIST-A 1 1 0.5800 0.6Y
Jan 01, 2011 DIST-A 1 1 0.7600 0.6Y
Dec 01, 2010 DIST-A 1 1 1.1100 0.6Y
Nov 01, 2010 DIST-A 1 1 0.4900 0.5Y
Oct 01, 2010 DIST-A 1 1 0.5900 0.5Y
Sep 01, 2010 DIST-A 1 1 0.9900 0.6Y
Aug 01, 2010 DIST-A 1 12 0.719 0.6Y
Jul 01, 2010 DIST-A 1 1 0.5500 0.6Y
Jun 01, 2010 DIST-A 1 1 0.1800 0.6Y
May 01, 2010 DIST-A 1 1 0.5500 0.7Y
Apr 01, 2010 DIST-A 1 1 0.1900 0.7Y
Mar 01, 2010 DIST-A 1 1 0.0200 0.8Y
Feb 01, 2010 DIST-A 1 1 1.0000 0.9Y
Jan 01, 2010 DIST-A 1 1 0.2500 0.9Y
Dec 01, 2009 DIST-A 1 1 0.4300 0.9Y
Nov 01, 2009 DIST-A 1 1 1.0800 0.9Y
Oct 01, 2009 DIST-A 1 1 0.8900 0.9Y
Sep 01, 2009 DIST-A 1 1 0.7900 0.9Y
Aug 01, 2009 DIST-A 1 1 1.0200 0.9Y
Jul 01, 2009 DIST-A 1 1 1.0600 0.8Y
Jun 01, 2009 DIST-A 1 1 1.2500 0.8Y
May 01, 2009 DIST-A 1 1 0.8600 0.8Y
Apr 01, 2009 DIST-A 1 1 1.1500 0.7Y
Mar 01, 2009 DIST-A 1 1 1.2400 0.7Y
Feb 01, 2009 DIST-A 1 1 1.0800 0.6Y
Jan 01, 2009 DIST-A 1 1 0.0500 0.5Y
Dec 01, 2008 DIST-A 1 1 0.7100 0.5Y
Nov 01, 2008 DIST-A 1 1 0.7600 0.5Y
Oct 01, 2008 DIST-A 1 1 0.6000 0.4Y
Sep 01, 2008 DIST-A 1 1 0.8200 0.4Y
Aug 01, 2008 DIST-A 1 1 0.1300 0.3Y
Jul 01, 2008 DIST-A 1 1 1.1900 0.4Y
Jun 01, 2008 DIST-A 1 1 1.2100 0.3Y
May 01, 2008 DIST-A 1 1 0.0200 0.2Y
Apr 01, 2008 DIST-A 1 1 0.1500 0.2Y
Mar 01, 2008 DIST-A 1 1 0.1700 0.3Y
Feb 01, 2008 DIST-A 1 1 0.1600 0.2Y
Jan 01, 2008 DIST-A 1 1 0.2600 0.3Y
Dec 01, 2007 DIST-A 1 1 0.3500 0.3Y
Nov 01, 2007 DIST-A 1 1 0.0900 0.3Y
Oct 01, 2007 DIST-A 1 1 0.1200 0.3Y
Sep 01, 2007 DIST-A 1 1 0.2300 0.3Y
Aug 01, 2007 DIST-A 1 1 0.3300 0.3Y
Jul 01, 2007 DIST-A 1 1 0.3600 0.3Y
Jun 01, 2007 DIST-A 1 1 0.2100 0.3Y
May 01, 2007 DIST-A 1 1 0.1600 0.3Y
Apr 01, 2007 DIST-A 1 1 0.6300 0.3Y
Mar 01, 2007 DIST-A 1 1 0 0.2Y
Feb 01, 2007 DIST-A 1 1 0.7200 0.2Y
Jan 01, 2007 DIST-A 1 1 0.3000 0.2Y
Dec 01, 2006 DIST-A 1 1 0.2000 0.2Y
Nov 01, 2006 DIST-A 1 1 0.2000 0.2Y
Oct 01, 2006 DIST-A 1 2 0 0.2Y
Sep 01, 2006 DIST-A 1 1 0.3000 0.2Y
Aug 01, 2006 DIST-A 1 1 0.1000 0.2Y
Jul 01, 2006 DIST-A 1 1 0.3000 0.2Y
Jun 01, 2006 DIST-A 1 0 0.2Y
May 01, 2006 DIST-A 1 1 0.1000 0.2Y
Apr 01, 2006 DIST-A 1 1 0 0.2Y
Mar 01, 2006 DIST-A 1 1 0.3000 0.2Y
Feb 01, 2006 DIST-A 1 1 0.3000 0.2Y
Jan 01, 2006 DIST-A 1 1 0.2000 0.2Y
Dec 01, 2005 DIST-A 1 1 0.1000 0.2Y
Nov 01, 2005 DIST-A 1 1 0.3000 0.2Y
Oct 01, 2005 DIST-A 1 1 0.3000 0.2Y
Sep 01, 2005 DIST-A 1 1 0 0.2Y
Aug 01, 2005 DIST-A 1 1 0.1000 0.2Y
Jul 01, 2005 DIST-A 1 1 0.2000 0.2Y
Jun 01, 2005 DIST-A 1 1 0.3000 0.2Y
May 01, 2005 DIST-A 1 1 0.2000 0.2Y
Apr 01, 2005 DIST-A 1 1 0.3000 0.2Y
Mar 01, 2005 DIST-A 1 1 0 0.1Y
Feb 01, 2005 DIST-A 1 1 0 0.2Y
Jan 01, 2005 DIST-A 1 1 0.3000 0.2Y
Dec 01, 2004 DIST-A 1 1 0 0.1Y
Nov 01, 2004 DIST-A 1 1 0.2000 0.2Y
Oct 01, 2004 DIST-A 1 1 0.2000 0.2Y
Sep 01, 2004 DIST-A 1 1 0.2000 0.2Y
 




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