OHA Drinking Water Services
OR41
PWS ID: 00922 ---- VERNONIA, 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 2 2 1.4 1.0Y
Mar 01, 2025 DIST-A 2 2 0.7 1.0Y
Feb 01, 2025 DIST-A 2 2 1.3 1.0Y
Jan 01, 2025 DIST-A 2 2 1.3 1.0Y
Dec 01, 2024 DIST-A 2 2 0.9 1.0Y
Nov 01, 2024 DIST-A 2 2 1.4 1.0Y
Oct 01, 2024 DIST-A 2 1 0.8 1.0Y
Sep 01, 2024 DIST-A 2 2 0.6 1.0Y
Aug 01, 2024 DIST-A 2 2 0.85 1.0Y
Jul 01, 2024 DIST-A 2 2 0.75 1.0Y
Jun 01, 2024 DIST-A 2 2 1.1 1.0Y
May 01, 2024 DIST-A 2 2 1.3 1.0Y
Apr 01, 2024 DIST-A 2 2 1.2 1.0Y
Mar 01, 2024 DIST-A 2 2 1 0.9Y
Feb 01, 2024 DIST-A 2 2 1.4 1.0Y
Jan 01, 2024 DIST-A 2 2 1.1 1.0Y
Dec 01, 2023 DIST-A 2 2 1.1 0.9Y
Nov 01, 2023 DIST-A 2 2 0.9 0.9Y
Oct 01, 2023 DIST-A 2 2 0.92 0.9Y
Sep 01, 2023 DIST-A 2 2 0.6 0.9Y
Jul 01, 2023 DIST-A 2 2 0.73 0.9Y
Jun 01, 2023 DIST-A 2 2 1.1 0.9Y
May 01, 2023 DIST-A 2 2 0.75 0.9Y
Apr 01, 2023 DIST-A 2 2 0.6 1.0Y
Mar 01, 2023 DIST-A 2 2 1.5 1.1Y
Feb 01, 2023 DIST-A 2 2 1.2 1.1Y
Jan 01, 2023 DIST-A 2 2 0.7 1.1Y
Dec 01, 2022 DIST-A 2 2 1.2 1.2Y
Nov 01, 2022 DIST-A 2 2 0.8 1.2Y
Oct 01, 2022 DIST-A 2 2 0.75 1.2Y
Sep 01, 2022 DIST-A 2 2 0.8 1.2Y
Aug 01, 2022 DIST-A 2 2 0.7 1.2Y
Jul 01, 2022 DIST-A 2 2 1 1.2Y
Jun 01, 2022 DIST-A 2 2 1.2 1.2Y
May 01, 2022 DIST-A 2 2 1.3 1.2Y
Apr 01, 2022 DIST-A 2 2 1.6 1.2Y
Mar 01, 2022 DIST-A 2 2 1.8 1.2Y
Feb 01, 2022 DIST-A 2 2 1.9 1.2Y
Jan 01, 2022 DIST-A 2 2 1.4 1.1Y
Dec 01, 2021 DIST-A 2 2 1.1 1.1Y
Nov 01, 2021 DIST-A 2 2 1.15 1.1Y
Oct 01, 2021 DIST-A 2 2 0.75 1.2Y
Sep 01, 2021 DIST-A 2 2 0.31 1.1Y
Aug 01, 2021 DIST-A 2 2 0.8 1.2Y
Jul 01, 2021 DIST-A 2 2 1 1.2Y
Jun 01, 2021 DIST-A 2 2 1.3 1.2Y
May 01, 2021 DIST-A 2 2 1.45 1.2Y
Apr 01, 2021 DIST-A 2 2 1.7 1.1Y
Feb 01, 2021 DIST-A 2 2 1.5 1.1Y
Jan 01, 2021 DIST-A 2 2 1.3 1.1Y
Dec 01, 2020 DIST-A 2 2 1.3 1.1Y
Nov 01, 2020 DIST-A 2 2 1.3 1.1Y
Oct 01, 2020 DIST-A 2 2 0.7 1.1Y
Sep 01, 2020 DIST-A 2 2 0.52 1.1Y
Aug 01, 2020 DIST-A 2 2 1 1.1Y
Jul 01, 2020 DIST-A 2 2 0.95 1.1Y
Jun 01, 2020 DIST-A 2 3 1.1 1.1Y
May 01, 2020 DIST-A 2 2 1.1 1.1Y
Apr 01, 2020 DIST-A 2 2 1.1 1.2Y
Mar 01, 2020 DIST-A 2 2 1.4 1.2Y
Feb 01, 2020 DIST-A 2 2 1.7 1.2Y
Jan 01, 2020 DIST-A 2 2 1 1.2Y
Dec 01, 2019 DIST-A 2 2 1 1.3Y
Nov 01, 2019 DIST-A 2 2 1.3 1.3Y
Oct 01, 2019 DIST-A 2 2 1.05 1.2Y
Sep 01, 2019 DIST-A 2 2 1 1.2Y
Aug 01, 2019 DIST-A 2 2 1 1.2Y
Jul 01, 2019 DIST-A 2 2 1.05 1.2Y
Jun 01, 2019 DIST-A 2 2 1 1.2Y
May 01, 2019 DIST-A 2 2 1.7 1.2Y
Apr 01, 2019 DIST-A 2 2 1.2 1.2Y
Mar 01, 2019 DIST-A 2 2 1.8 1.2Y
Feb 01, 2019 DIST-A 2 2 1.44 1.1Y
Jan 01, 2019 DIST-A 2 2 1.6 1.1Y
Dec 01, 2018 DIST-A 2 2 1.3 1.1Y
Nov 01, 2018 DIST-A 2 2 0.8 1.1Y
Oct 01, 2018 DIST-A 2 2 0.9 1.1Y
Sep 01, 2018 DIST-A 2 2 0.9 1.1Y
Aug 01, 2018 DIST-A 2 2 1 1.1Y
Jul 01, 2018 DIST-A 2 2 0.95 1.0Y
Jun 01, 2018 DIST-A 2 2 1.05 1.0Y
May 01, 2018 DIST-A 2 2 1.1 1.1Y
Apr 01, 2018 DIST-A 2 2 1.1 1.1Y
Mar 01, 2018 DIST-A 2 2 1.6 1.0Y
Feb 01, 2018 DIST-A 2 2 1.1 1.0Y
Jan 01, 2018 DIST-A 2 2 0.9 1.0Y
Dec 01, 2017 DIST-A 2 2 1.4 1.1Y
Nov 01, 2017 DIST-A 2 2 0.95 1.1Y
Oct 01, 2017 DIST-A 2 2 0.95 1.1Y
Sep 01, 2017 DIST-A 2 2 0.85 1.1Y
Aug 01, 2017 DIST-A 2 2 0.4 1.1Y
Jul 01, 2017 DIST-A 2 2 1 1.2Y
Jun 01, 2017 DIST-A 2 2 1.3 1.1Y
May 01, 2017 DIST-A 2 2 1.4 1.1Y
Apr 01, 2017 DIST-A 2 2 0.6 1.1Y
Mar 01, 2017 DIST-A 2 2 1.6 1.1Y
Feb 01, 2017 DIST-A 2 2 1 1.1Y
Jan 01, 2017 DIST-A 2 2 1.75 1.1Y
Dec 01, 2016 DIST-A 2 2 1.6 1.1Y
Nov 01, 2016 DIST-A 2 2 1.2 1.1Y
Oct 01, 2016 DIST-A 2 2 0.65 1.1Y
Sep 01, 2016 DIST-A 2 2 0.9 1.1Y
Aug 01, 2016 DIST-A 2 2 0.8 1.1Y
Jul 01, 2016 DIST-A 2 2 0.8 1.1Y
Jun 01, 2016 DIST-A 2 2 1.1 1.0Y
May 01, 2016 DIST-A 2 2 1.3 1.0Y
Apr 01, 2016 DIST-A 2 2 1 1.0Y
Mar 01, 2016 DIST-A 2 2 1.1 1.0Y
Feb 01, 2016 DIST-A 2 2 1 1.1Y
Jan 01, 2016 DIST-A 2 2 1.5 1.1Y
Dec 01, 2015 DIST-A 2 2 1.7 1.1Y
Nov 01, 2015 DIST-A 2 2 1.3 0.9Y
Oct 01, 2015 DIST-A 2 2 0.9 0.9Y
Sep 01, 2015 DIST-A 2 2 0.4 0.9Y
Aug 01, 2015 DIST-A 2 2 0.55 0.9Y
Jul 01, 2015 DIST-A 2 2 0.55 0.9Y
Jun 01, 2015 DIST-A 2 2 1 0.9Y
May 01, 2015 DIST-A 2 2 1.1 0.9Y
Apr 01, 2015 DIST-A 2 2 1.2 0.9Y
Mar 01, 2015 DIST-A 2 2 1.4 0.9Y
Feb 01, 2015 DIST-A 2 2 1.2 0.9Y
Jan 01, 2015 DIST-A 2 2 1.4 0.9Y
Dec 01, 2014 DIST-A 2 2 0.06 0.9Y
Nov 01, 2014 DIST-A 2 2 0.8 1.0Y
Oct 01, 2014 DIST-A 2 2 0.8 0.9Y
Sep 01, 2014 DIST-A 2 2 0.8 0.9Y
Aug 01, 2014 DIST-A 2 2 0.8 0.9Y
Jul 01, 2014 DIST-A 2 2 0.7 0.9Y
Jun 01, 2014 DIST-A 2 2 1 0.9Y
May 01, 2014 DIST-A 2 2 1.2 0.8Y
Apr 01, 2014 DIST-A 2 2 1 0.7Y
Mar 01, 2014 DIST-A 2 2 1 0.7Y
Feb 01, 2014 DIST-A 2 2 1.05 0.6Y
Jan 01, 2014 DIST-A 2 2 1.25 0.5Y
Dec 01, 2013 DIST-A 2 2 1.4 0.4Y
Nov 01, 2013 DIST-A 2 2 0.05 0.3Y
Oct 01, 2013 DIST-A 2 2 0.8 0.3Y
Sep 01, 2013 DIST-A 2 2 0.10 0.2Y
Jul 01, 2013 DIST-A 2 2 0.5 0.4Y
Jun 01, 2013 DIST-A 2 2 0.5 0.3Y
May 01, 2013 DIST-A 2 2 0.08 0.3Y
Apr 01, 2013 DIST-A 2 2 0.5 0.4Y
Mar 01, 2013 DIST-A 2 2 0.3 0.4Y
Feb 01, 2013 DIST-A 2 2 0.05 0.4Y
Jan 01, 2013 DIST-A 2 2 0.05 0.4Y
Dec 01, 2012 DIST-A 2 2 0.05 0.4Y
Nov 01, 2012 DIST-A 2 2 0.5 0.5Y
Oct 01, 2012 DIST-A 2 2 0.05 0.5Y
Sep 01, 2012 DIST-A 2 2 0.5 0.5Y
Aug 01, 2012 DIST-A 2 3 1.5 0.5Y
Jul 01, 2012 DIST-A 2 2 0.05 0.3Y
Jun 01, 2012 DIST-A 2 2 0.5000 0.3Y
May 01, 2012 DIST-A 2 2 0.5000 0.3Y
Apr 01, 2012 DIST-A 2 2 0.5000 0.3Y
Mar 01, 2012 DIST-A 2 2 0.5000 0.3Y
Feb 01, 2012 DIST-A 2 2 0.5000 0.2Y
Jan 01, 2012 DIST-A 2 2 0.0500 0.2Y
Dec 01, 2011 DIST-A 2 2 0.5000 0.2Y
Nov 01, 2011 DIST-A 2 2 0.5000 0.2Y
Oct 01, 2011 DIST-A 2 1 0.5000 0.1Y
Sep 01, 2011 DIST-A 2 2 0 0.1Y
Aug 01, 2011 DIST-A 2 2 0 0.1Y
Jul 01, 2011 DIST-A 2 2 0 0.2Y
Jun 01, 2011 DIST-A 2 2 0 0.2Y
May 01, 2011 DIST-A 2 2 0.5000 0.2Y
Apr 01, 2011 DIST-A 2 2 0 0.2Y
Mar 01, 2011 DIST-A 2 2 0 0.2Y
Feb 01, 2011 DIST-A 2 2 0.5000 0.2Y
Jan 01, 2011 DIST-A 2 2 0.0500 0.2Y
Dec 01, 2010 DIST-A 2 2 0.0500 0.2Y
Nov 01, 2010 DIST-A 2 2 0.0500 0.2Y
Oct 01, 2010 DIST-A 2 2 0.5000 0.2Y
Sep 01, 2010 DIST-A 2 2 0.0500 0.2Y
Aug 01, 2010 DIST-A 2 2 0.5000 0.3Y
Jul 01, 2010 DIST-A 2 2 0.5000 0.3Y
Jun 01, 2010 DIST-A 2 2 0.0500 0.2Y
May 01, 2010 DIST-A 2 2 0.0500 0.2Y
Apr 01, 2010 DIST-A 2 2 0.0500 0.2Y
Mar 01, 2010 DIST-A 2 2 0.5000 0.2Y
Feb 01, 2010 DIST-A 2 2 0.5000 0.2Y
Jan 01, 2010 DIST-A 2 2 0.0500 0.2Y
Dec 01, 2009 DIST-A 2 2 0.0500 0.2Y
Nov 01, 2009 DIST-A 2 2 0.0500 0Y
Oct 01, 2009 DIST-A 2 2 0.5000 0Y
Sep 01, 2009 DIST-A 2 2 0.5000 0Y
Aug 01, 2009 DIST-A 2 2 0.5000 0Y
Jul 01, 2009 DIST-A 2 2 0.0500 0Y
Jun 01, 2009 DIST-A 2 2 0.0500 0Y
May 01, 2009 DIST-A 2 2 0Y
Apr 01, 2009 DIST-A 2 2 0.0500 0Y
Mar 01, 2009 DIST-A 2 2 0.0500 0Y
Feb 01, 2009 DIST-A 2 2 0.5000 0Y
Jan 01, 2009 DIST-A 2 2 0.5000 0Y
Dec 01, 2008 DIST-A 2 2 0Y
Nov 01, 2008 DIST-A 2 2 0Y
Oct 01, 2008 DIST-A 2 2 0.5000 0Y
Sep 01, 2008 DIST-A 2 2 0.0500 0Y
Aug 01, 2008 DIST-A 2 2 0.0500 0Y
Jul 01, 2008 DIST-A 2 2 0.2750 0Y
Jun 01, 2008 DIST-A 2 2 0Y
May 01, 2008 DIST-A 2 2 0.5000 0Y
Apr 01, 2008 DIST-A 2 2 0.0500 0Y
Mar 01, 2008 DIST-A 2 2 0.5000 0Y
Feb 01, 2008 DIST-A 2 1 0.5000 0Y
Jan 01, 2008 DIST-A 2 2 0.0500 0Y
Dec 01, 2007 DIST-A 2 3 0.6667 0Y
Nov 01, 2007 DIST-A 2 2 0.5000 0Y
Oct 01, 2007 DIST-A 2 2 0.5000 0Y
Sep 01, 2007 DIST-A 2 2 0.0500 0Y
Aug 01, 2007 DIST-A 2 2 0.0500 0Y
Jul 01, 2007 DIST-A 2 2 0.5000 0Y
Jun 01, 2007 DIST-A 2 2 0.5000 0Y
May 01, 2007 DIST-A 2 2 0.0500 0Y
Apr 01, 2007 DIST-A 2 2 0.1500 0Y
Mar 01, 2007 DIST-A 2 2 0.0500 0Y
Feb 01, 2007 DIST-A 2 2 0.0500 0Y
Jan 01, 2007 DIST-A 2 2 0.0500 0Y
Dec 01, 2006 DIST-A 2 2 0.0500 0Y
Nov 01, 2006 DIST-A 2 2 0.0500 0Y
Oct 01, 2006 DIST-A 2 2 0.5000 0Y
Sep 01, 2006 DIST-A 2 2 0.0500 0Y
Aug 01, 2006 DIST-A 2 2 0.0500 0Y
Jul 01, 2006 DIST-A 2 2 0.5000 0Y
Jun 01, 2006 DIST-A 2 2 0.5000 0Y
May 01, 2006 DIST-A 2 2 0.0500 0Y
Apr 01, 2006 DIST-A 2 2 0.5000 0Y
Mar 01, 2006 DIST-A 2 2 0Y
Feb 01, 2006 DIST-A 2 2 0.5000 0Y
Jan 01, 2006 DIST-A 2 2 0.5000 0Y
Dec 01, 2005 DIST-A 2 2 0.5000 0Y
Nov 01, 2005 DIST-A 2 2 0.0500 0Y
Oct 01, 2005 DIST-A 2 2 0.5000 0Y
Sep 01, 2005 DIST-A 2 2 0.5000 0Y
Aug 01, 2005 DIST-A 2 2 0.5000 0Y
Jul 01, 2005 DIST-A 2 2 0.5000 0Y
Jun 01, 2005 DIST-A 2 2 0.5000 0Y
May 01, 2005 DIST-A 2 2 0.2500 0Y
Apr 01, 2005 DIST-A 2 2 0.5000 0Y
Mar 01, 2005 DIST-A 2 2 0.5000 0Y
Feb 01, 2005 DIST-A 2 2 0.5000 0Y
Jan 01, 2005 DIST-A 2 2 0.5000 0Y
Dec 01, 2004 DIST-A 2 2 0.5000 0Y
Nov 01, 2004 DIST-A 2 2 0.5000 0Y
Oct 01, 2004 DIST-A 2 2 0.5000 0Y
Sep 01, 2004 DIST-A 2 2 0.5000 0Y
 



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