OHA Drinking Water Services
OR41
PWS ID: 00914 ---- UMATILLA, 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
Jun 01, 2024 DIST-A 9 6 0.3 0.3Y
May 01, 2024 DIST-A 9 10 0.36 0.3Y
Apr 01, 2024 DIST-A 9 10 0.30 0.3Y
Mar 01, 2024 DIST-A 9 6 0.36 0.3Y
Feb 01, 2024 DIST-A 9 9 0.29 0.3Y
Jan 01, 2024 DIST-A 9 9 0.3 0.3Y
Dec 01, 2023 DIST-A 9 9 0.31 0.3Y
Nov 01, 2023 DIST-A 9 9 0.36 0.3Y
Oct 01, 2023 DIST-A 9 9 0.32 0.3Y
Sep 01, 2023 DIST-A 9 9 0.3 0.3Y
Aug 01, 2023 DIST-A 9 9 0.27 0.3Y
Jul 01, 2023 DIST-A 9 9 0.26 0.3Y
Jun 01, 2023 DIST-A 9 9 0.37 0.4Y
May 01, 2023 DIST-A 9 9 0.42 0.4Y
Apr 01, 2023 DIST-A 9 10 0.33 0.4Y
Mar 01, 2023 DIST-A 9 9 0.35 0.4Y
Feb 01, 2023 DIST-A 9 9 0.3 0.4Y
Jan 01, 2023 DIST-A 9 9 0.33 0.4Y
Dec 01, 2022 DIST-A 9 9 0.44 0.4Y
Nov 01, 2022 DIST-A 9 9 0.33 0.4Y
Oct 01, 2022 DIST-A 9 9 0.41 0.4Y
Sep 01, 2022 DIST-A 9 7 0.27 0.4Y
Aug 01, 2022 DIST-A 9 9 0.37 0.4Y
Jul 01, 2022 DIST-A 9 9 0.45 0.4Y
Jun 01, 2022 DIST-A 9 9 0.36 0.4Y
May 01, 2022 DIST-A 9 9 0.4 0.4Y
Apr 01, 2022 DIST-A 9 9 0.4 0.4Y
Mar 01, 2022 DIST-A 9 9 0.45 0.4Y
Feb 01, 2022 DIST-A 9 9 0.39 0.4Y
Jan 01, 2022 DIST-A 9 9 0.43 0.4Y
Dec 01, 2021 DIST-A 9 9 0.38 0.4Y
Nov 01, 2021 DIST-A 9 10 0.33 0.4Y
Oct 01, 2021 DIST-A 9 8 0.35 0.4Y
Sep 01, 2021 DIST-A 9 9 0.36 0.3Y
Aug 01, 2021 DIST-A 9 9 0.3 0.3Y
Jul 01, 2021 DIST-A 9 9 0.3 0.4Y
Jun 01, 2021 DIST-A 9 10 0.28 0.4Y
May 01, 2021 DIST-A 8 9 0.41 0.4Y
Apr 01, 2021 DIST-A 8 9 0.43 0.4Y
Mar 01, 2021 DIST-A 8 8 0.47 0.4Y
Feb 01, 2021 DIST-A 8 8 0.3 0.4Y
Jan 01, 2021 DIST-A 8 8 0.37 0.4Y
Dec 01, 2020 DIST-A 8 8 0.35 0.4Y
Nov 01, 2020 DIST-A 8 8 0.29 0.4Y
Oct 01, 2020 DIST-A 8 8 0.31 0.4Y
Sep 01, 2020 DIST-A 8 8 0.37 0.4Y
Aug 01, 2020 DIST-A 8 8 0.51 0.4Y
Jul 01, 2020 DIST-A 8 8 0.32 0.5Y
Jun 01, 2020 DIST-A 8 8 0.31 0.5Y
May 01, 2020 DIST-A 8 8 0.42 0.5Y
Apr 01, 2020 DIST-A 8 8 0.4 0.5Y
Mar 01, 2020 DIST-A 8 8 0.36 0.6Y
Feb 01, 2020 DIST-A 8 8 0.45 0.6Y
Jan 01, 2020 DIST-A 8 8 0.46 0.6Y
Dec 01, 2019 DIST-A 8 8 0.32 0.6Y
Nov 01, 2019 DIST-A 8 0 0.7Y
Oct 01, 2019 DIST-A 8 8 0.65 0.7Y
Sep 01, 2019 DIST-A 8 8 0.69 0.6Y
Aug 01, 2019 DIST-A 8 8 0.68 0.6Y
Jul 01, 2019 DIST-A 8 8 0.60 0.6Y
Jun 01, 2019 DIST-A 8 8 0.58 0.6Y
May 01, 2019 DIST-A 8 8 0.74 0.6Y
Apr 01, 2019 DIST-A 8 7 0.59 0.6Y
Mar 01, 2019 DIST-A 8 8 0.73 0.6Y
Feb 01, 2019 DIST-A 8 8 0.67 0.6Y
Jan 01, 2019 DIST-A 8 8 0.56 0.6Y
Dec 01, 2018 DIST-A 8 8 0.71 0.6Y
Nov 01, 2018 DIST-A 8 8 0.61 0.6Y
Oct 01, 2018 DIST-A 8 8 0.56 0.6Y
Sep 01, 2018 DIST-A 8 8 0.55 0.6Y
Aug 01, 2018 DIST-A 8 8 0.66 0.6Y
Jul 01, 2018 DIST-A 8 8 0.6 0.6Y
Jun 01, 2018 DIST-A 8 8 0.63 0.6Y
May 01, 2018 DIST-A 8 8 0.58 0.6Y
Apr 01, 2018 DIST-A 8 8 0.45 0.6Y
Mar 01, 2018 DIST-A 8 8 0.53 0.6Y
Feb 01, 2018 DIST-A 8 8 0.59 0.6Y
Jan 01, 2018 DIST-A 8 8 0.5 0.6Y
Dec 01, 2017 DIST-A 8 8 0.74 0.6Y
Nov 01, 2017 DIST-A 8 8 0.64 0.6Y
Oct 01, 2017 DIST-A 8 8 0.64 0.6Y
Sep 01, 2017 DIST-A 11 10 0.6 0.7Y
Aug 01, 2017 DIST-A 8 8 0.5 0.7Y
Jul 01, 2017 DIST-A 8 8 0.69 0.7Y
Jun 01, 2017 DIST-A 8 8 0.58 0.7Y
May 01, 2017 DIST-A 8 8 0.56 0.7Y
Apr 01, 2017 DIST-A 8 8 0.66 0.7Y
Mar 01, 2017 DIST-A 8 8 0.57 0.7Y
Feb 01, 2017 DIST-A 8 8 0.68 0.7Y
Jan 01, 2017 DIST-A 8 8 0.79 0.7Y
Dec 01, 2016 DIST-A 8 8 0.84 0.7Y
Nov 01, 2016 DIST-A 8 8 0.66 0.7Y
Oct 01, 2016 DIST-A 8 8 0.75 0.7Y
Sep 01, 2016 DIST-A 8 8 0.58 0.7Y
Aug 01, 2016 DIST-A 8 8 0.68 0.7Y
Jul 01, 2016 DIST-A 8 8 0.77 0.7Y
Jun 01, 2016 DIST-A 8 8 0.63 0.7Y
May 01, 2016 DIST-A 8 8 0.69 0.7Y
Apr 01, 2016 DIST-A 8 8 0.76 0.7Y
Mar 01, 2016 DIST-A 8 8 0.68 0.7Y
Feb 01, 2016 DIST-A 8 8 0.56 0.7Y
Jan 01, 2016 DIST-A 8 8 0.77 0.7Y
Dec 01, 2015 DIST-A 8 8 0.88 1.3Y
Nov 01, 2015 DIST-A 8 8 0.71 1.2Y
Oct 01, 2015 DIST-A 8 8 0.65 1.2Y
Sep 01, 2015 DIST-A 8 8 0.78 1.2Y
Aug 01, 2015 DIST-A 8 8 0.69 1.2Y
Jul 01, 2015 DIST-A 8 8 0.80 1.2Y
Jun 01, 2015 DIST-A 8 8 0.87 1.2Y
May 01, 2015 DIST-A 8 8 0.82 1.2Y
Apr 01, 2015 DIST-A 8 8 0.65 1.2Y
Mar 01, 2015 DIST-A 8 8 0.67 1.2Y
Feb 01, 2015 DIST-A 8 8 0.57 1.2Y
Jan 01, 2015 DIST-A 8 8 7 1.2Y
Dec 01, 2014 DIST-A 8 8 0.57 0.6Y
Nov 01, 2014 DIST-A 8 8 0.67 0.6Y
Oct 01, 2014 DIST-A 8 8 0.59 0.6Y
Sep 01, 2014 DIST-A 8 8 0.63 0.6Y
Aug 01, 2014 DIST-A 8 8 0.62 0.6Y
Jul 01, 2014 DIST-A 8 8 0.7 0.6Y
Jun 01, 2014 DIST-A 8 8 0.6 0.6Y
May 01, 2014 DIST-A 8 8 0.85 0.7Y
Apr 01, 2014 DIST-A 8 8 0.72 0.7Y
Mar 01, 2014 DIST-A 8 8 0.48 0.7Y
Feb 01, 2014 DIST-A 8 8 0.49 0.7Y
Jan 01, 2014 DIST-A 8 8 0.61 0.7Y
Dec 01, 2013 DIST-A 8 8 0.74 0.7Y
Nov 01, 2013 DIST-A 8 8 0.65 0.7Y
Oct 01, 2013 DIST-A 8 8 0.61 0.7Y
Sep 01, 2013 DIST-A 8 8 0.56 0.7Y
Aug 01, 2013 DIST-A 8 8 0.70 0.7Y
Jul 01, 2013 DIST-A 8 8 0.74 0.8Y
Jun 01, 2013 DIST-A 8 8 0.7 0.7Y
May 01, 2013 DIST-A 8 8 0.89 0.8Y
Apr 01, 2013 DIST-A 8 8 0.8 0.7Y
Mar 01, 2013 DIST-A 8 8 0.8 0.8Y
Feb 01, 2013 DIST-A 8 8 0.83 0.8Y
Jan 01, 2013 DIST-A 8 8 0.74 0.8Y
Dec 01, 2012 DIST-A 8 8 0.76 0.8Y
Nov 01, 2012 DIST-A 8 8 0.61 0.8Y
Oct 01, 2012 DIST-A 8 8 0.69 0.8Y
Sep 01, 2012 DIST-A 8 8 0.68 0.8Y
Aug 01, 2012 DIST-A 7 7 0.84 0.8Y
Jul 01, 2012 DIST-A 7 7 0.66 0.8Y
Jun 01, 2012 DIST-A 7 7 0.77 0.8Y
May 01, 2012 DIST-A 7 7 0.77 0.8Y
Apr 01, 2012 DIST-A 7 7 1 0.8Y
Mar 01, 2012 DIST-A 7 7 1 0.8Y
Feb 01, 2012 DIST-A 7 7 0.7 0.7Y
Jan 01, 2012 DIST-A 7 7 0.82 0.7Y
Dec 01, 2011 DIST-A 7 7 0.68 0.8Y
Nov 01, 2011 DIST-A 7 7 0.71 0.8Y
Oct 01, 2011 DIST-A 7 7 0.6 0.8Y
Sep 01, 2011 DIST-A 7 7 0.5 0.8Y
Aug 01, 2011 DIST-A 7 7 1 0.8Y
Jul 01, 2011 DIST-A 7 7 0.73 0.8Y
Jun 01, 2011 DIST-A 7 7 0.64 0.8Y
May 01, 2011 DIST-A 7 7 0.85 0.8Y
Apr 01, 2011 DIST-A 7 7 0.9 0.8Y
Mar 01, 2011 DIST-A 7 7 0.8 0.8Y
Feb 01, 2011 DIST-A 7 7 0.7 0.8Y
Jan 01, 2011 DIST-A 7 7 1 0.8Y
Dec 01, 2010 DIST-A 7 7 0.79 0.8Y
Nov 01, 2010 DIST-A 7 7 0.8 0.8Y
Oct 01, 2010 DIST-A 7 7 0.9 0.8Y
Sep 01, 2010 DIST-A 7 7 0.6 0.7Y
Aug 01, 2010 DIST-A 7 7 0.7 0.7Y
Jul 01, 2010 DIST-A 7 7 0.70 0.7Y
Jun 01, 2010 DIST-A 7 7 0.72 0.7Y
May 01, 2010 DIST-A 7 7 0.8 0.7Y
Apr 01, 2010 DIST-A 7 7 1 0.7Y
Mar 01, 2010 DIST-A 7 7 0.7 0.7Y
Feb 01, 2010 DIST-A 7 7 0.62 0.7Y
Jan 01, 2010 DIST-A 7 7 1 0.7Y
Dec 01, 2009 DIST-A 7 7 0.72 0.8Y
Nov 01, 2009 DIST-A 7 7 0.6 0.8Y
Oct 01, 2009 DIST-A 7 7 0.59 0.8Y
Sep 01, 2009 DIST-A 7 7 0.7 0.8Y
Aug 01, 2009 DIST-A 7 7 0.60 0.9Y
Jul 01, 2009 DIST-A 7 7 0.78 0.9Y
Jun 01, 2009 DIST-A 7 10 0.77 0.9Y
May 01, 2009 DIST-A 7 7 0.84 0.9Y
Apr 01, 2009 DIST-A 7 7 0.88 1.0Y
Mar 01, 2009 DIST-A 7 7 0.8 0.9Y
Feb 01, 2009 DIST-A 7 7 0.7 0.9Y
Jan 01, 2009 DIST-A 7 6 1.1 0.9Y
Dec 01, 2008 DIST-A 7 7 1.0 0.9Y
Nov 01, 2008 DIST-A 7 7 1.0 0.9Y
Oct 01, 2008 DIST-A 7 7 0.9 0.9Y
Sep 01, 2008 DIST-A 7 7 1.0 0.9Y
Aug 01, 2008 DIST-A 7 7 1.0 0.8Y
Jul 01, 2008 DIST-A 7 7 0.91 0.8Y
Jun 01, 2008 DIST-A 7 7 1.2 0.8Y
May 01, 2008 DIST-A 7 7 1 0.7Y
Apr 01, 2008 DIST-A 7 7 0.7 0.8Y
Mar 01, 2008 DIST-A 7 7 0.6 0.8Y
Feb 01, 2008 DIST-A 7 7 0.7 0.7Y
Jan 01, 2008 DIST-A 7 7 1.1 0.7Y
Dec 01, 2007 DIST-A 7 7 0.8 0.7Y
Nov 01, 2007 DIST-A 7 7 0.69 0.7Y
Oct 01, 2007 DIST-A 7 7 0.70 0.7Y
Sep 01, 2007 DIST-A 7 7 0.44 0.7Y
Aug 01, 2007 DIST-A 7 7 0.60 0.8Y
Jul 01, 2007 DIST-A 7 7 0.7 0.8Y
Jun 01, 2007 DIST-A 7 7 0.9 0.9Y
May 01, 2007 DIST-A 7 7 1.19 0.9Y
Apr 01, 2007 DIST-A 7 7 0.7 0.9Y
Mar 01, 2007 DIST-A 7 7 0.4 0.9Y
Feb 01, 2007 DIST-A 7 7 0.6 1.0Y
Jan 01, 2007 DIST-A 7 7 0.5 1.0Y
Dec 01, 2006 DIST-A 7 7 0.57 1.1Y
Nov 01, 2006 DIST-A 7 7 0.74 1.1Y
Oct 01, 2006 DIST-A 7 7 0.61 1.1Y
Sep 01, 2006 DIST-A 7 7 1.55 1.1Y
Aug 01, 2006 DIST-A 7 7 0.77 1.1Y
Jul 01, 2006 DIST-A 7 7 1.84 1.2Y
Jun 01, 2006 DIST-A 7 7 1.06 1.1Y
May 01, 2006 DIST-A 7 7 1.48 1.2Y
Apr 01, 2006 DIST-A 7 7 1.11 1.1Y
Mar 01, 2006 DIST-A 7 7 0.98 1.1Y
Feb 01, 2006 DIST-A 10 10 0.9 1.1Y
Jan 01, 2006 DIST-A 7 7 1.03 1.1Y
Dec 01, 2005 DIST-A 7 7 0.72 1.1Y
Nov 01, 2005 DIST-A 7 7 0.76 1.1Y
Oct 01, 2005 DIST-A 7 7 1.16 1.1Y
Sep 01, 2005 DIST-A 7 7 0.9 1.1Y
Aug 01, 2005 DIST-A 7 7 1.92 1.2Y
Jul 01, 2005 DIST-A 7 7 1.56 1.1Y
Jun 01, 2005 DIST-A 7 7 1.64 1.1Y
May 01, 2005 DIST-A 7 7 0.88 1.1Y
Apr 01, 2005 DIST-A 7 7 0.78 1.1Y
Mar 01, 2005 DIST-A 7 7 0.72 1.1Y
Feb 01, 2005 DIST-A 7 7 0.73 1.2Y
Jan 01, 2005 DIST-A 7 7 0.97 1.2Y
Dec 01, 2004 DIST-A 7 7 1 1.3Y
Nov 01, 2004 DIST-A 7 7 1.07 1.3Y
Oct 01, 2004 DIST-A 7 7 1.24 1.4Y
Sep 01, 2004 DIST-A 7 7 1.51 1.4Y
 




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