OHA Drinking Water Services
OR41
PWS ID: 00985 ---- HILLSBORO-CHERRY GROVE
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, 2024 DIST-A 2 16 1.5 1.3Y
Mar 01, 2024 DIST-A 2 16 1.33 1.2Y
Feb 01, 2024 DIST-A 2 16 1.5 1.2Y
Jan 01, 2024 DIST-A 2 16 1.4 1.2Y
Dec 01, 2023 DIST-A 2 12 1.20 1.2Y
Nov 01, 2023 DIST-A 2 12 1.1 1.2Y
Oct 01, 2023 DIST-A 2 15 1.22 1.2Y
Sep 01, 2023 DIST-A 2 12 1.2 1.2Y
Aug 01, 2023 DIST-A 2 16 1.37 1.1Y
Jul 01, 2023 DIST-A 2 12 1.18 1.1Y
Jun 01, 2023 DIST-A 2 16 1.20 1.1Y
May 01, 2023 DIST-A 2 16 1.18 1.1Y
Apr 01, 2023 DIST-A 2 16 1.10 1.1Y
Mar 01, 2023 DIST-A 2 16 1.1 1.1Y
Feb 01, 2023 DIST-A 2 16 1.22 1.1Y
Jan 01, 2023 DIST-A 2 16 1.12 1.1Y
Dec 01, 2022 DIST-A 2 12 1.06 1.1Y
Nov 01, 2022 DIST-A 2 16 1.09 1.1Y
Oct 01, 2022 DIST-A 2 16 1.03 1.1Y
Sep 01, 2022 DIST-A 2 12 0.94 1.1Y
Aug 01, 2022 DIST-A 2 16 1.01 1.1Y
Jul 01, 2022 DIST-A 2 16 1.20 1.1Y
Jun 01, 2022 DIST-A 2 16 1.22 1.1Y
May 01, 2022 DIST-A 2 16 1.2 1.0Y
Apr 01, 2022 DIST-A 2 16 1.1 1.0Y
Mar 01, 2022 DIST-A 2 16 1.3 1.0Y
Feb 01, 2022 DIST-A 2 16 1 1.0Y
Jan 01, 2022 DIST-A 2 16 1.09 1.0Y
Dec 01, 2021 DIST-A 2 12 1.01 1.0Y
Nov 01, 2021 DIST-A 2 16 0.91 1.0Y
Oct 01, 2021 DIST-A 2 16 1.00 1.0Y
Sep 01, 2021 DIST-A 2 12 1.06 1.0Y
Aug 01, 2021 DIST-A 2 16 0.99 1.0Y
Jul 01, 2021 DIST-A 2 15 0.9 1.1Y
Jun 01, 2021 DIST-A 2 16 0.85 1.1Y
May 01, 2021 DIST-A 2 16 1.09 1.1Y
Apr 01, 2021 DIST-A 2 16 1.10 1.1Y
Mar 01, 2021 DIST-A 2 16 1.11 1.1Y
Feb 01, 2021 DIST-A 2 16 1.2 1.1Y
Jan 01, 2021 DIST-A 2 16 1.17 1.1Y
Dec 01, 2020 DIST-A 2 12 1.1 1.2Y
Nov 01, 2020 DIST-A 2 12 1.0 1.1Y
Oct 01, 2020 DIST-A 2 16 0.95 1.2Y
Sep 01, 2020 DIST-A 2 15 1.04 1.2Y
Aug 01, 2020 DIST-A 2 16 1.14 1.2Y
Jul 01, 2020 DIST-A 2 16 1.09 1.2Y
Jun 01, 2020 DIST-A 2 16 1.1 1.2Y
May 01, 2020 DIST-A 2 12 1.24 1.2Y
Apr 01, 2020 DIST-A 2 16 1.34 1.2Y
Mar 01, 2020 DIST-A 2 16 1.3 1.2Y
Feb 01, 2020 DIST-A 2 15 1.33 1.2Y
Jan 01, 2020 DIST-A 2 16 1.2 1.1Y
Dec 01, 2019 DIST-A 2 12 1.02 1.1Y
Nov 01, 2019 DIST-A 2 11 1.1 1.1Y
Oct 01, 2019 DIST-A 2 16 1.15 1.1Y
Sep 01, 2019 DIST-A 2 12 1.05 1.1Y
Aug 01, 2019 DIST-A 2 16 1.07 1.1Y
Jul 01, 2019 DIST-A 2 15 1.2 1.2Y
Jun 01, 2019 DIST-A 2 16 1.2 1.1Y
May 01, 2019 DIST-A 2 12 1.2 1.1Y
Apr 01, 2019 DIST-A 2 16 1.17 1.1Y
Mar 01, 2019 DIST-A 2 16 1.15 1.1Y
Feb 01, 2019 DIST-A 2 16 1.26 1.1Y
Jan 01, 2019 DIST-A 2 16 1.2 1.2Y
Dec 01, 2018 DIST-A 2 12 1.04 1.1Y
Nov 01, 2018 DIST-A 2 8 1.07 1.1Y
Oct 01, 2018 DIST-A 5 15 1.1 1.1Y
Sep 01, 2018 DIST-A 2 15 1.09 1.1Y
Aug 01, 2018 DIST-A 2 11 1.19 1.1Y
Jul 01, 2018 DIST-A 2 9 1.12 1.1Y
Jun 01, 2018 DIST-A 2 12 1.2 1.1Y
May 01, 2018 DIST-A 2 15 1.1 1.1Y
Apr 01, 2018 DIST-A 2 12 1.22 1.1Y
Mar 01, 2018 DIST-A 2 8 1.19 1.1Y
Feb 01, 2018 DIST-A 2 8 1.3 1.1Y
Jan 01, 2018 DIST-A 2 14 1 1.0Y
Dec 01, 2017 DIST-A 2 12 1.10 1.1Y
Nov 01, 2017 DIST-A 2 4 1.1 1.1Y
Oct 01, 2017 DIST-A 2 14 1.08 1.1Y
Sep 01, 2017 DIST-A 2 14 1.04 1.1Y
Aug 01, 2017 DIST-A 2 12 1.08 1.1Y
Jul 01, 2017 DIST-A 2 7 1.05 1.0Y
Jun 01, 2017 DIST-A 2 7 1.08 1.1Y
May 01, 2017 DIST-A 2 9 0.95 1.0Y
Apr 01, 2017 DIST-A 2 8 0.9 1.0Y
Mar 01, 2017 DIST-A 2 2 1.06 1.1Y
Feb 01, 2017 DIST-A 2 5 1.12 1.1Y
Jan 01, 2017 DIST-A 2 8 1.12 1.1Y
Dec 01, 2016 DIST-A 2 9 1.2 1.1Y
Nov 01, 2016 DIST-A 2 7 1.13 1.1Y
Oct 01, 2016 DIST-A 2 6 0.90 1.1Y
Sep 01, 2016 DIST-A 2 14 1.07 1.1Y
Aug 01, 2016 DIST-A 2 16 1 1.1Y
Jul 01, 2016 DIST-A 2 13 1.1 1.1Y
Jun 01, 2016 DIST-A 2 14 1.0 1.1Y
May 01, 2016 DIST-A 2 12 1 1.1Y
Apr 01, 2016 DIST-A 2 14 1.2 1.2Y
Mar 01, 2016 DIST-A 2 17 1.07 1.2Y
Feb 01, 2016 DIST-A 2 16 1.1 1.2Y
Jan 01, 2016 DIST-A 2 12 1.27 1.2Y
Dec 01, 2015 DIST-A 2 5 1 1.2Y
Nov 01, 2015 DIST-A 2 5 0.97 1.2Y
Oct 01, 2015 DIST-A 2 8 1.02 1.2Y
Sep 01, 2015 DIST-A 2 8 1.2 1.2Y
Aug 01, 2015 DIST-A 2 15 1.3 1.2Y
Jul 01, 2015 DIST-A 2 16 1.3 1.1Y
Jun 01, 2015 DIST-A 2 17 1.3 1.1Y
May 01, 2015 DIST-A 2 16 1.38 1.1Y
Apr 01, 2015 DIST-A 2 11 1.21 1.1Y
Mar 01, 2015 DIST-A 2 10 1.4 1.0Y
Feb 01, 2015 DIST-A 2 10 1.19 1.0Y
Jan 01, 2015 DIST-A 2 5 1.05 1.0Y
Dec 01, 2014 DIST-A 2 10 1.0 1.0Y
Nov 01, 2014 DIST-A 2 5 0.8 1.0Y
Oct 01, 2014 DIST-A 2 5 1.12 1.0Y
Sep 01, 2014 DIST-A 2 10 1.0 1.0Y
Aug 01, 2014 DIST-A 2 16 1 1.0Y
Jul 01, 2014 DIST-A 2 16 1.2 1.0Y
Jun 01, 2014 DIST-A 2 9 0.8 0.9Y
May 01, 2014 DIST-A 2 11 0.9 0.9Y
Apr 01, 2014 DIST-A 2 14 1.0 0.9Y
Mar 01, 2014 DIST-A 2 11 0.9 0.9Y
Feb 01, 2014 DIST-A 2 6 0.86 0.9Y
Jan 01, 2014 DIST-A 2 14 1.0 0.9Y
Dec 01, 2013 DIST-A 2 8 0.98 0.9Y
Nov 01, 2013 DIST-A 2 12 0.9 0.9Y
Oct 01, 2013 DIST-A 2 13 0.9 0.9Y
Sep 01, 2013 DIST-A 2 14 1 0.9Y
Aug 01, 2013 DIST-A 2 16 1.0 0.9Y
Jul 01, 2013 DIST-A 2 16 0.9 0.9Y
Jun 01, 2013 DIST-A 2 15 0.9 0.9Y
May 01, 2013 DIST-A 2 16 0.9 0.9Y
Apr 01, 2013 DIST-A 2 15 0.99 0.9Y
Mar 01, 2013 DIST-A 2 9 0.9 0.9Y
Feb 01, 2013 DIST-A 2 5 0.88 0.9Y
Jan 01, 2013 DIST-A 2 12 1.0 1.0Y
Dec 01, 2012 DIST-A 2 12 1.01 0.9Y
Nov 01, 2012 DIST-A 2 16 0.9 0.9Y
Oct 01, 2012 DIST-A 2 19 1 0.9Y
Sep 01, 2012 DIST-A 2 16 0.9 0.9Y
Aug 01, 2012 DIST-A 2 14 0.9 0.9Y
Jul 01, 2012 DIST-A 2 14 1 0.9Y
Jun 01, 2012 DIST-A 2 12 0.9 0.9Y
May 01, 2012 DIST-A 2 13 1.0 0.9Y
Apr 01, 2012 DIST-A 2 15 0.95 0.9Y
Mar 01, 2012 DIST-A 2 14 0.9 0.9Y
Feb 01, 2012 DIST-A 2 13 1.0 0.9Y
Jan 01, 2012 DIST-A 2 16 0.9 0.9Y
Dec 01, 2011 DIST-A 2 15 1 0.9Y
Nov 01, 2011 DIST-A 2 15 0.79 0.9Y
Oct 01, 2011 DIST-A 2 15 0.8840 0.9Y
Sep 01, 2011 DIST-A 2 8 0.8675 0.9Y
Aug 01, 2011 DIST-A 5 16 0.8950 1.0Y
Jul 01, 2011 DIST-A 5 13 0.8231 1.0Y
Jun 01, 2011 DIST-A 2 15 0.92 1.0Y
May 01, 2011 DIST-A 2 12 0.9500 1.0Y
Apr 01, 2011 DIST-A 2 12 1.0000 1.0Y
Mar 01, 2011 DIST-A 2 12 0.9900 1.0Y
Feb 01, 2011 DIST-A 5 15 1.0367 1.0Y
Jan 01, 2011 DIST-A 5 20 1.1 1.0Y
Dec 01, 2010 DIST-A 2 16 0.8 1.0Y
Nov 01, 2010 DIST-A 2 16 0.9 1.0Y
Oct 01, 2010 DIST-A 2 10 1.0 1.0Y
Sep 01, 2010 DIST-A 2 16 1 1.0Y
Aug 01, 2010 DIST-A 2 19 1.0 1.0Y
Jul 01, 2010 DIST-A 2 16 1 1.0Y
Jun 01, 2010 DIST-A 2 20 0.99 1.0Y
May 01, 2010 DIST-A 2 12 0.98 1.0Y
Apr 01, 2010 DIST-A 5 12 0.9 0.9Y
Mar 01, 2010 DIST-A 5 22 0.95 0.9Y
Feb 01, 2010 DIST-A 2 16 0.93 0.9Y
Jan 01, 2010 DIST-A 2 16 1.02 0.9Y
Dec 01, 2009 DIST-A 2 20 1.0 0.9Y
Nov 01, 2009 DIST-A 2 12 0.8 0.8Y
Oct 01, 2009 DIST-A 2 20 1 0.7Y
Sep 01, 2009 DIST-A 2 8 1.02 0.7Y
Aug 01, 2009 DIST-A 2 8 1.00 0.7Y
Jul 01, 2009 DIST-A 2 16 0.99 0.7Y
Jun 01, 2009 DIST-A 2 16 0.85 0.7Y
May 01, 2009 DIST-A 2 2 0.6Y
Apr 01, 2009 DIST-A 2 8 1 0.6Y
Mar 01, 2009 DIST-A 2 16 0.98 0.7Y
Feb 01, 2009 DIST-A 2 16 0.99 0.7Y
Jan 01, 2009 DIST-A 2 12 0.99 0.7Y
Dec 01, 2008 DIST-A 2 2 0.7Y
Nov 01, 2008 DIST-A 2 2 0.8Y
Oct 01, 2008 DIST-A 2 20 0.9 0.8Y
Sep 01, 2008 DIST-A 2 16 0.99 0.8Y
Aug 01, 2008 DIST-A 2 16 0.98 0.9Y
Jul 01, 2008 DIST-A 2 20 0.98 0.9Y
Jun 01, 2008 DIST-A 2 2 0.9Y
May 01, 2008 DIST-A 2 2 0.9Y
Apr 01, 2008 DIST-A 2 16 1.02 1.0Y
Mar 01, 2008 DIST-A 2 16 1.09 1.0Y
Feb 01, 2008 DIST-A 2 16 1.06 1.0Y
Jan 01, 2008 DIST-A 2 20 1.05 1.0Y
Dec 01, 2007 DIST-A 2 16 1 1.0Y
Nov 01, 2007 DIST-A 2 16 1 1.0Y
Oct 01, 2007 DIST-A 2 20 1 1.0Y
Sep 01, 2007 DIST-A 2 16 1.06 1.0Y
Aug 01, 2007 DIST-A 2 16 1.04 1.0Y
Jul 01, 2007 DIST-A 2 20 1 1.0Y
Jun 01, 2007 DIST-A 2 16 1.03 1.0Y
May 01, 2007 DIST-A 2 20 1.0 1.0Y
Apr 01, 2007 DIST-A 2 16 1.0 1.0Y
Mar 01, 2007 DIST-A 2 16 1.08 1.0Y
Feb 01, 2007 DIST-A 2 16 0.91 1.0Y
Jan 01, 2007 DIST-A 2 20 0.96 1.0Y
Dec 01, 2006 DIST-A 2 16 1.02 0.9Y
Nov 01, 2006 DIST-A 2 16 0.88 0.9Y
Oct 01, 2006 DIST-A 2 19 1.06 0.9Y
Sep 01, 2006 DIST-A 2 16 1.0 0.9Y
Aug 01, 2006 DIST-A 2 20 0.97 0.9Y
Jul 01, 2006 DIST-A 2 16 0.86 0.9Y
Jun 01, 2006 DIST-A 2 12 0.91 1.0Y
May 01, 2006 DIST-A 2 16 1.02 1.0Y
Apr 01, 2006 DIST-A 2 16 1 1.0Y
Mar 01, 2006 DIST-A 2 16 0.87 1.0Y
Feb 01, 2006 DIST-A 2 16 0.9 1.0Y
Jan 01, 2006 DIST-A 2 20 0.83 1.0Y
Dec 01, 2005 DIST-A 2 16 0.96 1.0Y
Nov 01, 2005 DIST-A 2 20 1.01 1.0Y
Oct 01, 2005 DIST-A 2 16 0.92 1.0Y
Sep 01, 2005 DIST-A 2 16 1.01 1.0Y
Aug 01, 2005 DIST-A 2 20 1 1.0Y
Jul 01, 2005 DIST-A 2 16 0.97 1.0Y
Jun 01, 2005 DIST-A 2 16 1.0 1.0Y
May 01, 2005 DIST-A 2 20 1.01 1.0Y
Apr 01, 2005 DIST-A 2 15 1.03 1.0Y
Mar 01, 2005 DIST-A 2 19 1.00 1.0Y
Feb 01, 2005 DIST-A 2 16 1.06 0.9Y
Jan 01, 2005 DIST-A 1 15 0.99 0.9Y
Dec 01, 2004 DIST-A 1 12 0.99 0.9Y
Nov 01, 2004 DIST-A 1 20 0.97 0.9Y
Oct 01, 2004 DIST-A 1 16 0.98 0.9Y
Sep 01, 2004 DIST-A 1 16 0.9 0.9Y
 




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