OHA Drinking Water Services
OR41
PWS ID: 00673 ---- PRAIRIE CITY
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, 2025 DIST-A 1 1 0.6 0.5Y
Feb 01, 2025 DIST-A 1 1 0.8 0.4Y
Jan 01, 2025 DIST-A 1 1 0.3 0.4Y
Nov 01, 2024 DIST-A 1 1 0.4 0.5Y
Oct 01, 2024 DIST-A 1 1 0.4 0.5Y
Sep 01, 2024 DIST-A 1 1 0.4 0.5Y
Aug 01, 2024 DIST-A 1 1 0.4 0.5Y
Jul 01, 2024 DIST-A 1 1 0.4 0.6Y
Jun 01, 2024 DIST-A 1 1 0.4 0.6Y
May 01, 2024 DIST-A 1 1 0.4 0.6Y
Apr 01, 2024 DIST-A 1 1 0.6 0.6Y
Mar 01, 2024 DIST-A 1 1 0.4 0.6Y
Feb 01, 2024 DIST-A 1 1 0.6 0.6Y
Jan 01, 2024 DIST-A 1 1 0.7 0.6Y
Dec 01, 2023 DIST-A 1 1 0.5 0.6Y
Nov 01, 2023 DIST-A 1 1 0.7 0.6Y
Oct 01, 2023 DIST-A 1 1 1 0.6Y
Sep 01, 2023 DIST-A 1 1 0.5 0.6Y
Aug 01, 2023 DIST-A 1 1 0.5 0.6Y
Jul 01, 2023 DIST-A 1 1 0.6 0.6Y
Jun 01, 2023 DIST-A 1 1 0.7 0.6Y
May 01, 2023 DIST-A 1 1 0.3 0.6Y
Apr 01, 2023 DIST-A 1 1 0.5 0.6Y
Mar 01, 2023 DIST-A 1 1 0.7 0.6Y
Feb 01, 2023 DIST-A 1 1 0.7 0.6Y
Jan 01, 2023 DIST-A 1 1 0.7 0.6Y
Dec 01, 2022 DIST-A 1 1 0.7 0.6Y
Nov 01, 2022 DIST-A 1 1 0.8 0.6Y
Oct 01, 2022 DIST-A 1 1 0.8 0.5Y
Sep 01, 2022 DIST-A 1 1 0.4 0.5Y
Jul 01, 2022 DIST-A 1 1 0.5 0.6Y
Jun 01, 2022 DIST-A 1 1 0.4 0.6Y
May 01, 2022 DIST-A 1 1 0.3 0.6Y
Apr 01, 2022 DIST-A 1 1 0.4 0.6Y
Mar 01, 2022 DIST-A 1 1 0.6 0.6Y
Feb 01, 2022 DIST-A 1 1 0.6 0.6Y
Jan 01, 2022 DIST-A 1 1 0.6 0.6Y
Dec 01, 2021 DIST-A 1 1 0.7 0.6Y
Nov 01, 2021 DIST-A 1 1 0.7 0.5Y
Oct 01, 2021 DIST-A 1 1 0.7 0.5Y
Sep 01, 2021 DIST-A 1 1 0.6 0.5Y
Aug 01, 2021 DIST-A 1 1 0.6 0.5Y
Jul 01, 2021 DIST-A 1 1 0.5 0.5Y
Jun 01, 2021 DIST-A 1 1 0.6 0.5Y
May 01, 2021 DIST-A 1 1 0.3 0.5Y
Apr 01, 2021 DIST-A 1 1 0.5 0.5Y
Mar 01, 2021 DIST-A 1 1 0.6 0.5Y
Feb 01, 2021 DIST-A 1 1 0.6 0.5Y
Jan 01, 2021 DIST-A 1 1 0.4 0.5Y
Dec 01, 2020 DIST-A 1 1 0.4 0.6Y
Nov 01, 2020 DIST-A 1 1 0.6 0.6Y
Oct 01, 2020 DIST-A 1 1 0.5 0.6Y
Sep 01, 2020 DIST-A 1 1 0.5 0.6Y
Aug 01, 2020 DIST-A 1 1 0.3 0.6Y
Jul 01, 2020 DIST-A 1 1 0.5 0.6Y
Jun 01, 2020 DIST-A 1 1 0.6 0.6Y
May 01, 2020 DIST-A 1 1 0.5 0.6Y
Apr 01, 2020 DIST-A 1 1 0.8 0.6Y
Mar 01, 2020 DIST-A 1 1 0.7 0.6Y
Feb 01, 2020 DIST-A 1 1 0.8 0.6Y
Jan 01, 2020 DIST-A 1 1 0.6 0.5Y
Dec 01, 2019 DIST-A 1 1 0.8 0.5Y
Nov 01, 2019 DIST-A 1 1 0.7 0.5Y
Oct 01, 2019 DIST-A 1 1 0.31 0.5Y
Sep 01, 2019 DIST-A 1 1 0.3 0.5Y
Aug 01, 2019 DIST-A 1 1 0.5 0.6Y
Jul 01, 2019 DIST-A 1 1 0.5 0.5Y
Jun 01, 2019 DIST-A 1 1 0.5 0.5Y
May 01, 2019 DIST-A 1 1 0.8 0.5Y
Apr 01, 2019 DIST-A 1 1 0.3 0.5Y
Mar 01, 2019 DIST-A 1 1 0.5 0.6Y
Feb 01, 2019 DIST-A 1 1 0.7 0.6Y
Dec 01, 2018 DIST-A 1 1 0.8 0.6Y
Nov 01, 2018 DIST-A 1 1 0.7 0.6Y
Oct 01, 2018 DIST-A 1 1 0.3 0.6Y
Sep 01, 2018 DIST-A 1 1 0.5 0.6Y
Aug 01, 2018 DIST-A 1 1 0.4 0.6Y
Jul 01, 2018 DIST-A 1 1 0.4 0.5Y
Jun 01, 2018 DIST-A 1 1 0.3 0.6Y
May 01, 2018 DIST-A 1 1 0.8 0.6Y
Apr 01, 2018 DIST-A 1 1 0.8 0.6Y
Mar 01, 2018 DIST-A 1 1 0.5 0.6Y
Feb 01, 2018 DIST-A 1 1 0.8 0.6Y
Jan 01, 2018 DIST-A 1 1 0.6 0.6Y
Dec 01, 2017 DIST-A 1 1 0.6 0.6Y
Nov 01, 2017 DIST-A 1 1 0.7 0.5Y
Oct 01, 2017 DIST-A 1 1 0.5 0.5Y
Sep 01, 2017 DIST-A 1 1 0.3 0.6Y
Aug 01, 2017 DIST-A 1 1 0.3 0.6Y
Jul 01, 2017 DIST-A 1 1 0.6 0.6Y
Jun 01, 2017 DIST-A 1 1 0.7 0.6Y
May 01, 2017 DIST-A 1 1 0.6 0.5Y
Apr 01, 2017 DIST-A 1 1 0.5 0.5Y
Mar 01, 2017 DIST-A 1 1 0.7 0.5Y
Feb 01, 2017 DIST-A 1 1 0.7 0.5Y
Jan 01, 2017 DIST-A 1 1 0.5 0.5Y
Dec 01, 2016 DIST-A 1 1 0.5 0.5Y
Nov 01, 2016 DIST-A 1 1 0.7 0.5Y
Oct 01, 2016 DIST-A 1 1 0.7 0.5Y
Sep 01, 2016 DIST-A 1 1 0.3 0.5Y
Aug 01, 2016 DIST-A 1 1 0.5 0.6Y
Jul 01, 2016 DIST-A 1 1 0.3 0.6Y
Jun 01, 2016 DIST-A 1 1 0.5 0.6Y
May 01, 2016 DIST-A 1 1 0.6 0.6Y
Apr 01, 2016 DIST-A 1 1 0.4 0.6Y
Mar 01, 2016 DIST-A 1 1 0.5 0.6Y
Feb 01, 2016 DIST-A 1 1 0.3 0.6Y
Jan 01, 2016 DIST-A 1 1 0.7 0.7Y
Dec 01, 2015 DIST-A 1 1 0.8 0.7Y
Nov 01, 2015 DIST-A 1 1 0.8 0.7Y
Oct 01, 2015 DIST-A 1 1 0.7 0.7Y
Sep 01, 2015 DIST-A 1 1 0.7 0.7Y
Aug 01, 2015 DIST-A 1 1 0.3 0.7Y
Jul 01, 2015 DIST-A 1 1 0.5 0.7Y
Jun 01, 2015 DIST-A 1 1 0.5 0.7Y
May 01, 2015 DIST-A 1 1 0.7 0.7Y
Apr 01, 2015 DIST-A 1 1 0.9 0.7Y
Mar 01, 2015 DIST-A 1 1 0.7 0.7Y
Feb 01, 2015 DIST-A 1 1 0.8 0.7Y
Jan 01, 2015 DIST-A 1 1 0.9 0.7Y
Dec 01, 2014 DIST-A 1 1 1 0.7Y
Nov 01, 2014 DIST-A 1 1 0.9 0.6Y
Oct 01, 2014 DIST-A 1 1 0.58 0.6Y
Sep 01, 2014 DIST-A 1 1 0.6 0.6Y
Aug 01, 2014 DIST-A 1 1 0.6 0.6Y
Jul 01, 2014 DIST-A 1 1 0.3 0.6Y
Jun 01, 2014 DIST-A 1 1 0.6 0.7Y
May 01, 2014 DIST-A 1 1 0.8 0.7Y
Apr 01, 2014 DIST-A 1 1 0.8 0.6Y
Mar 01, 2014 DIST-A 1 1 0.5 0.6Y
Feb 01, 2014 DIST-A 1 1 0.7 0.6Y
Jan 01, 2014 DIST-A 1 1 0.7 0.6Y
Dec 01, 2013 DIST-A 1 1 0.7 0.6Y
Nov 01, 2013 DIST-A 1 1 0.7 0.7Y
Oct 01, 2013 DIST-A 1 1 0.6 0.7Y
Sep 01, 2013 DIST-A 1 1 0.6 0.7Y
Aug 01, 2013 DIST-A 1 1 0.5 0.7Y
Jul 01, 2013 DIST-A 1 1 0.8 0.7Y
Jun 01, 2013 DIST-A 1 1 0.7 0.6Y
May 01, 2013 DIST-A 1 1 0.5 0.6Y
Apr 01, 2013 DIST-A 1 1 0.4 0.6Y
Mar 01, 2013 DIST-A 1 1 0.7 0.6Y
Feb 01, 2013 DIST-A 1 1 0.7 0.6Y
Jan 01, 2013 DIST-A 1 1 0.8 0.6Y
Dec 01, 2012 DIST-A 1 1 0.8 0.6Y
Nov 01, 2012 DIST-A 1 1 0.8 0.6Y
Oct 01, 2012 DIST-A 1 1 0.6 0.6Y
Sep 01, 2012 DIST-A 1 1 0.6 0.6Y
Aug 01, 2012 DIST-A 1 1 0.5 0.6Y
Jul 01, 2012 DIST-A 2 2 0.2 0.7Y
Jun 01, 2012 DIST-A 2 2 0.7 0.7Y
May 01, 2012 DIST-A 2 2 0.6 0.7Y
Apr 01, 2012 DIST-A 2 2 0.8 0.7Y
Mar 01, 2012 DIST-A 2 2 0.6 0.7Y
Feb 01, 2012 DIST-A 2 2 0.6 0.7Y
Jan 01, 2012 DIST-A 2 2 0.8 0.7Y
Dec 01, 2011 DIST-A 2 2 0.8 0.6Y
Nov 01, 2011 DIST-A 2 2 0.7 0.6Y
Oct 01, 2011 DIST-A 2 1 0.7000 0.6Y
Sep 01, 2011 DIST-A 2 2 0.7000 0.6Y
Aug 01, 2011 DIST-A 2 1 0.7000 0.6Y
Jul 01, 2011 DIST-A 2 2 0.4000 0.6Y
Jun 01, 2011 DIST-A 2 2 0.8000 0.6Y
May 01, 2011 DIST-A 2 2 0.6000 0.6Y
Apr 01, 2011 DIST-A 2 2 0.4000 0.6Y
Mar 01, 2011 DIST-A 2 2 0.7000 0.6Y
Feb 01, 2011 DIST-A 2 2 0.6000 0.6Y
Jan 01, 2011 DIST-A 2 2 0.4 0.6Y
Dec 01, 2010 DIST-A 2 2 0.7 0.6Y
Nov 01, 2010 DIST-A 2 2 0.6 0.6Y
Oct 01, 2010 DIST-A 2 2 0.8 0.6Y
Sep 01, 2010 DIST-A 2 2 0.6 0.6Y
Aug 01, 2010 DIST-A 2 2 0.5 0.6Y
Jul 01, 2010 DIST-A 2 2 0.7 0.6Y
Jun 01, 2010 DIST-A 2 2 0.6 0.6Y
May 01, 2010 DIST-A 2 2 0.5 0.6Y
Apr 01, 2010 DIST-A 2 2 0.7 0.5Y
Mar 01, 2010 DIST-A 2 2 0.7 0.5Y
Feb 01, 2010 DIST-A 2 2 0.7 0.5Y
Jan 01, 2010 DIST-A 2 2 0.6 0.5Y
Dec 01, 2009 DIST-A 2 2 0.6 0.4Y
Nov 01, 2009 DIST-A 2 2 0.5 0.4Y
Oct 01, 2009 DIST-A 2 2 1 0.3Y
Sep 01, 2009 DIST-A 2 2 0.6 0.4Y
Aug 01, 2009 DIST-A 2 2 0.3 0.5Y
Jul 01, 2009 DIST-A 2 2 0.5 0.6Y
Jun 01, 2009 DIST-A 2 2 0.4 0.7Y
May 01, 2009 DIST-A 2 2 0.6Y
Apr 01, 2009 DIST-A 2 3 0.4666 0.7Y
Mar 01, 2009 DIST-A 2 2 0.4 0.8Y
Feb 01, 2009 DIST-A 2 2 0 0.9Y
Jan 01, 2009 DIST-A 5 5 0.5 1.0Y
Dec 01, 2008 DIST-A 5 5 1.1Y
Nov 01, 2008 DIST-A 5 5 1.2Y
Oct 01, 2008 DIST-A 5 5 1.6 1.3Y
Sep 01, 2008 DIST-A 5 5 1.6 1.2Y
Aug 01, 2008 DIST-A 5 5 1.4 1.2Y
Jul 01, 2008 DIST-A 5 5 1.5 1.2Y
Jun 01, 2008 DIST-A 5 5 1.1Y
May 01, 2008 DIST-A 5 5 1.3 1.2Y
Apr 01, 2008 DIST-A 5 5 1.4 1.1Y
Mar 01, 2008 DIST-A 5 5 1.4 1.1Y
Feb 01, 2008 DIST-A 5 5 1 1.1Y
Jan 01, 2008 DIST-A 5 4 1.4 1.1Y
Dec 01, 2007 DIST-A 5 4 1.5 1.0Y
Nov 01, 2007 DIST-A 2 2 1.2 0.9Y
Oct 01, 2007 DIST-A 2 5 1 0.9Y
Sep 01, 2007 DIST-A 2 3 1 0.9Y
Aug 01, 2007 DIST-A 2 4 1.1 0.9Y
Jul 01, 2007 DIST-A 2 4 0.9 0.8Y
Jun 01, 2007 DIST-A 2 3 0.7 0.8Y
May 01, 2007 DIST-A 2 3 0.9 0.8Y
Apr 01, 2007 DIST-A 2 3 1 0.8Y
Mar 01, 2007 DIST-A 2 4 1 0.8Y
Feb 01, 2007 DIST-A 2 4 1 0.8Y
Jan 01, 2007 DIST-A 2 4 0.7 0.8Y
Dec 01, 2006 DIST-A 2 2 0.7Y
Nov 01, 2006 DIST-A 2 5 1 0.8Y
Oct 01, 2006 DIST-A 2 2 1.0 0.8Y
Sep 01, 2006 DIST-A 2 3 1 0.8Y
Aug 01, 2006 DIST-A 2 5 1 0.8Y
Jul 01, 2006 DIST-A 2 3 0.8 0.7Y
Jun 01, 2006 DIST-A 2 4 0.7 0.7Y
May 01, 2006 DIST-A 2 5 0.8 0.7Y
Apr 01, 2006 DIST-A 2 4 0.6 0.7Y
Mar 01, 2006 DIST-A 2 2 0.7 0.7Y
Feb 01, 2006 DIST-A 2 3 0.8 0.7Y
Jan 01, 2006 DIST-A 2 4 0.5 0.7Y
Dec 01, 2005 DIST-A 2 4 1 0.6Y
Nov 01, 2005 DIST-A 2 4 1 0.6Y
Oct 01, 2005 DIST-A 2 2 1 0.5Y
Sep 01, 2005 DIST-A 2 2 0.7 0.5Y
Aug 01, 2005 DIST-A 2 3 0.2 0.5Y
Jul 01, 2005 DIST-A 2 3 0.5 0.5Y
Jun 01, 2005 DIST-A 2 1 0.5 0.5Y
May 01, 2005 DIST-A 2 2 0.7 0.5Y
Apr 01, 2005 DIST-A 2 2 0.6 0.5Y
Mar 01, 2005 DIST-A 2 2 0.6 0.4Y
Feb 01, 2005 DIST-A 2 2 0.7 0.4Y
Jan 01, 2005 DIST-A 2 1 0.2 0.4Y
Dec 01, 2004 DIST-A 2 2 0.5 0.4Y
Nov 01, 2004 DIST-A 2 2 0.3 0.4Y
Oct 01, 2004 DIST-A 2 2 0.4 0.4Y
Sep 01, 2004 DIST-A 2 2 0.5 0.4Y
 



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