OHA Drinking Water Services
OR41
PWS ID: 00366 ---- HARRISBURG, 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, 2025 DIST-A 4 4 0.06 0.1Y
May 01, 2025 DIST-A 4 4 0.1 0.1Y
Apr 01, 2025 DIST-A 4 4 0.1 0.1Y
Mar 01, 2025 DIST-A 4 4 0.1 0.1Y
Feb 01, 2025 DIST-A 4 4 0.12 0.1Y
Jan 01, 2025 DIST-A 4 4 0.1 0.1Y
Dec 01, 2024 DIST-A 4 4 0.1 0.1Y
Nov 01, 2024 DIST-A 4 4 0.1 0.1Y
Oct 01, 2024 DIST-A 4 4 0.1 0.1Y
Sep 01, 2024 DIST-A 4 4 0.07 0.1Y
Aug 01, 2024 DIST-A 4 4 0.13 0.1Y
Jul 01, 2024 DIST-A 4 4 0.08 0.1Y
Jun 01, 2024 DIST-A 4 4 0.08 0.1Y
May 01, 2024 DIST-A 4 4 0.1 0.1Y
Apr 01, 2024 DIST-A 4 4 0.1 0.1Y
Mar 01, 2024 DIST-A 4 4 0.1 0.1Y
Feb 01, 2024 DIST-A 4 4 0.1 0.1Y
Jan 01, 2024 DIST-A 4 4 0.1 0.1Y
Dec 01, 2023 DIST-A 4 4 0.1 0.1Y
Nov 01, 2023 DIST-A 4 4 0.11 0.1Y
Oct 01, 2023 DIST-A 4 4 0.11 0.1Y
Sep 01, 2023 DIST-A 4 4 0.08 0.1Y
Aug 01, 2023 DIST-A 4 4 0.14 0.1Y
Jul 01, 2023 DIST-A 4 4 0.14 0.1Y
Jun 01, 2023 DIST-A 4 4 0.1 0.1Y
May 01, 2023 DIST-A 4 4 0.17 0.2Y
Apr 01, 2023 DIST-A 4 4 0.1 0.1Y
Mar 01, 2023 DIST-A 4 4 0.1 0.1Y
Feb 01, 2023 DIST-A 4 4 0.10 0.1Y
Jan 01, 2023 DIST-A 4 4 0.10 0.2Y
Dec 01, 2022 DIST-A 4 4 0.2 0.2Y
Nov 01, 2022 DIST-A 4 4 0.08 0.2Y
Oct 01, 2022 DIST-A 4 4 0.05 0.2Y
Sep 01, 2022 DIST-A 4 4 0.18 0.2Y
Aug 01, 2022 DIST-A 4 4 0.12 0.2Y
Jul 01, 2022 DIST-A 4 4 0.3 0.2Y
Jun 01, 2022 DIST-A 4 4 0.33 0.2Y
May 01, 2022 DIST-A 4 4 0.1 0.2Y
Apr 01, 2022 DIST-A 4 4 0.1 0.2Y
Mar 01, 2022 DIST-A 4 4 0.06 0.2Y
Feb 01, 2022 DIST-A 4 4 0.59 0.3Y
Jan 01, 2022 DIST-A 4 4 0.2 0.3Y
Dec 01, 2021 DIST-A 4 4 0.18 0.3Y
Nov 01, 2021 DIST-A 7 7 0.1 0.3Y
Oct 01, 2021 DIST-A 4 4 0.2 0.3Y
Sep 01, 2021 DIST-A 4 4 0.13 0.4Y
Aug 01, 2021 DIST-A 4 8 0.40 0.4Y
Jul 01, 2021 DIST-A 4 4 0.5 0.4Y
Jun 01, 2021 DIST-A 4 4 0.15 0.3Y
May 01, 2021 DIST-A 7 8 0.09 0.4Y
Apr 01, 2021 DIST-A 4 4 0.4 0.4Y
Mar 01, 2021 DIST-A 4 4 0.51 0.4Y
Feb 01, 2021 DIST-A 4 4 0.6 0.4Y
Jan 01, 2021 DIST-A 4 4 0.14 0.4Y
Dec 01, 2020 DIST-A 4 4 0.60 0.4Y
Nov 01, 2020 DIST-A 4 4 0.36 0.4Y
Oct 01, 2020 DIST-A 4 4 0.4 0.4Y
Sep 01, 2020 DIST-A 4 4 0.5 0.4Y
Aug 01, 2020 DIST-A 4 4 0.3 0.3Y
Jul 01, 2020 DIST-A 4 4 0.14 0.3Y
Jun 01, 2020 DIST-A 4 4 0.4 0.3Y
May 01, 2020 DIST-A 4 4 0.18 0.4Y
Apr 01, 2020 DIST-A 4 4 0.5 0.4Y
Mar 01, 2020 DIST-A 4 4 0.54 0.4Y
Feb 01, 2020 DIST-A 4 4 0.3 0.4Y
Jan 01, 2020 DIST-A 4 4 0.28 0.4Y
Dec 01, 2019 DIST-A 4 4 0.60 0.5Y
Nov 01, 2019 DIST-A 4 4 0.41 0.4Y
Oct 01, 2019 DIST-A 4 4 0.07 0.5Y
Sep 01, 2019 DIST-A 4 4 0.29 0.5Y
Aug 01, 2019 DIST-A 4 4 0.20 0.5Y
Jul 01, 2019 DIST-A 4 4 0.43 0.5Y
Jun 01, 2019 DIST-A 4 4 0.48 0.5Y
May 01, 2019 DIST-A 4 4 0.44 0.5Y
Apr 01, 2019 DIST-A 4 4 0.6 0.5Y
Mar 01, 2019 DIST-A 4 4 0.80 0.5Y
Feb 01, 2019 DIST-A 4 4 0.4 0.4Y
Jan 01, 2019 DIST-A 4 4 0.71 0.4Y
Dec 01, 2018 DIST-A 4 4 0.40 0.4Y
Nov 01, 2018 DIST-A 4 4 0.61 0.5Y
Oct 01, 2018 DIST-A 4 4 0.54 0.5Y
Sep 01, 2018 DIST-A 4 4 0.71 0.5Y
Aug 01, 2018 DIST-A 4 4 0.3 0.4Y
Jul 01, 2018 DIST-A 4 4 0.04 0.4Y
Jun 01, 2018 DIST-A 4 4 0.5 0.5Y
May 01, 2018 DIST-A 4 4 0.12 0.5Y
Apr 01, 2018 DIST-A 4 4 0.5 0.6Y
Mar 01, 2018 DIST-A 4 4 0.36 0.5Y
Feb 01, 2018 DIST-A 4 4 0.2 0.5Y
Jan 01, 2018 DIST-A 4 4 0.81 0.6Y
Dec 01, 2017 DIST-A 4 4 0.85 0.6Y
Nov 01, 2017 DIST-A 4 4 0.49 0.6Y
Oct 01, 2017 DIST-A 4 4 0.67 0.6Y
Sep 01, 2017 DIST-A 4 4 0.4 0.6Y
Aug 01, 2017 DIST-A 4 4 0.39 0.6Y
Jul 01, 2017 DIST-A 4 4 1.09 0.6Y
Jun 01, 2017 DIST-A 4 4 0.4 0.6Y
May 01, 2017 DIST-A 4 4 0.5 0.5Y
Apr 01, 2017 DIST-A 4 4 0.22 0.5Y
Mar 01, 2017 DIST-A 4 4 0.3 0.5Y
Feb 01, 2017 DIST-A 4 4 0.64 0.5Y
Jan 01, 2017 DIST-A 4 4 0.79 0.5Y
Dec 01, 2016 DIST-A 4 4 0.8 0.5Y
Nov 01, 2016 DIST-A 4 4 0.68 0.4Y
Oct 01, 2016 DIST-A 4 4 0.61 0.4Y
Sep 01, 2016 DIST-A 4 4 0.73 0.4Y
Aug 01, 2016 DIST-A 4 4 0.13 0.3Y
Jul 01, 2016 DIST-A 4 4 0.9 0.3Y
Jun 01, 2016 DIST-A 4 4 0.1 0.3Y
May 01, 2016 DIST-A 4 4 0.5 0.3Y
Apr 01, 2016 DIST-A 4 4 0.15 0.3Y
Mar 01, 2016 DIST-A 4 4 0.2 0.3Y
Feb 01, 2016 DIST-A 4 4 0.2 0.3Y
Jan 01, 2016 DIST-A 4 4 0.56 0.3Y
Dec 01, 2015 DIST-A 4 4 0.1 0.3Y
Nov 01, 2015 DIST-A 4 4 0.77 0.3Y
Oct 01, 2015 DIST-A 4 4 0.26 0.3Y
Sep 01, 2015 DIST-A 4 4 0.3 0.3Y
Aug 01, 2015 DIST-A 4 4 0.11 0.3Y
Jul 01, 2015 DIST-A 4 4 0.48 0.3Y
Jun 01, 2015 DIST-A 4 4 0.27 0.2Y
May 01, 2015 DIST-A 4 4 0.73 0.2Y
Apr 01, 2015 DIST-A 4 4 0.13 0.2Y
Mar 01, 2015 DIST-A 4 4 0.21 0.2Y
Feb 01, 2015 DIST-A 4 4 0.18 0.2Y
Jan 01, 2015 DIST-A 4 4 0.22 0.2Y
Dec 01, 2014 DIST-A 4 4 0.06 0.2Y
Nov 01, 2014 DIST-A 4 4 0.42 0.2Y
Oct 01, 2014 DIST-A 4 4 0.43 0.2Y
Sep 01, 2014 DIST-A 4 4 0.15 0.2Y
Aug 01, 2014 DIST-A 4 4 0.08 0.2Y
Jul 01, 2014 DIST-A 4 4 0.07 0.2Y
Jun 01, 2014 DIST-A 4 4 0.27 0.2Y
May 01, 2014 DIST-A 4 4 0.31 0.2Y
Apr 01, 2014 DIST-A 4 4 0.16 0.2Y
Mar 01, 2014 DIST-A 4 4 0.17 0.2Y
Feb 01, 2014 DIST-A 4 4 0.1 0.2Y
Jan 01, 2014 DIST-A 4 4 0.26 0.2Y
Dec 01, 2013 DIST-A 4 4 0.21 0.2Y
Nov 01, 2013 DIST-A 4 4 0.09 0.2Y
Oct 01, 2013 DIST-A 4 4 0.11 0.2Y
Sep 01, 2013 DIST-A 4 4 0.19 0.2Y
Aug 01, 2013 DIST-A 4 4 0.13 0.2Y
Jul 01, 2013 DIST-A 4 4 0.27 0.2Y
Jun 01, 2013 DIST-A 4 4 0.12 0.2Y
May 01, 2013 DIST-A 4 4 0.18 0.2Y
Apr 01, 2013 DIST-A 4 4 0.16 0.2Y
Mar 01, 2013 DIST-A 4 4 0.36 0.2Y
Feb 01, 2013 DIST-A 4 4 0.2 0.2Y
Jan 01, 2013 DIST-A 4 4 0.17 0.2Y
Dec 01, 2012 DIST-A 4 4 0.08 0.2Y
Nov 01, 2012 DIST-A 4 4 0.19 0.2Y
Oct 01, 2012 DIST-A 4 4 0.04 0.2Y
Sep 01, 2012 DIST-A 4 4 0.2 0.2Y
Aug 01, 2012 DIST-A 4 4 0.15 0.2Y
Jul 01, 2012 DIST-A 4 4 0.04 0.2Y
Jun 01, 2012 DIST-A 4 4 0.12 0.2Y
May 01, 2012 DIST-A 4 4 0.19 0.2Y
Apr 01, 2012 DIST-A 4 4 0.3 0.2Y
Mar 01, 2012 DIST-A 4 4 0.66 0.1Y
Feb 01, 2012 DIST-A 4 4 0.06 0.1Y
Jan 01, 2012 DIST-A 4 4 0.33 0.1Y
Dec 01, 2011 DIST-A 4 4 0.04 0.1Y
Nov 01, 2011 DIST-A 4 4 0.09 0.1Y
Oct 01, 2011 DIST-A 4 4 0.05 0.1Y
Sep 01, 2011 DIST-A 4 4 0.01 0.1Y
Aug 01, 2011 DIST-A 4 4 0.05 0.1Y
Jul 01, 2011 DIST-A 4 4 0.14 0.1Y
Jun 01, 2011 DIST-A 4 4 0.05 0.1Y
May 01, 2011 DIST-A 4 4 0.05 0.1Y
Apr 01, 2011 DIST-A 4 4 0.25 0.1Y
Mar 01, 2011 DIST-A 4 4 0.17 0.1Y
Feb 01, 2011 DIST-A 4 4 0.08 0.1Y
Jan 01, 2011 DIST-A 4 4 0.32 0.1Y
Dec 01, 2010 DIST-A 4 4 0.05 0.1Y
Nov 01, 2010 DIST-A 4 4 0.2 0.1Y
Oct 01, 2010 DIST-A 4 4 0.1 0.1Y
Sep 01, 2010 DIST-A 4 4 0.16 0.1Y
Aug 01, 2010 DIST-A 4 4 0.2 0.1Y
Jul 01, 2010 DIST-A 4 4 0.05 0.1Y
Jun 01, 2010 DIST-A 4 4 0.07 0.1Y
May 01, 2010 DIST-A 4 4 0.1 0.1Y
Apr 01, 2010 DIST-A 4 4 0.06 0.1Y
Mar 01, 2010 DIST-A 4 4 0.1 0.1Y
Feb 01, 2010 DIST-A 4 4 0.05 0.1Y
Jan 01, 2010 DIST-A 4 4 0.13 0.1Y
Dec 01, 2009 DIST-A 4 4 0.16 0.1Y
Nov 01, 2009 DIST-A 4 4 0.09 0.1Y
Oct 01, 2009 DIST-A 4 4 0.19 0.1Y
Sep 01, 2009 DIST-A 4 4 0.1 0.1Y
Aug 01, 2009 DIST-A 4 7 0.08 0.1Y
Jul 01, 2009 DIST-A 4 4 0.19 0.1Y
Jun 01, 2009 DIST-A 4 4 0.18 0.1Y
May 01, 2009 DIST-A 4 4 0.05 0.1Y
Apr 01, 2009 DIST-A 4 4 0.14 0.1Y
Mar 01, 2009 DIST-A 4 4 0.07 0.1Y
Feb 01, 2009 DIST-A 4 4 0.1 0.1Y
Jan 01, 2009 DIST-A 4 4 0.09 0.1Y
Dec 01, 2008 DIST-A 4 4 0.14 0.1Y
Nov 01, 2008 DIST-A 4 4 0.04 0.1Y
Oct 01, 2008 DIST-A 4 4 0.05 0.1Y
Sep 01, 2008 DIST-A 4 4 0.04 0.1Y
Aug 01, 2008 DIST-A 4 4 0.04 0.1Y
Jul 01, 2008 DIST-A 4 4 0.30 0.1Y
Jun 01, 2008 DIST-A 4 4 0.07 0.1Y
May 01, 2008 DIST-A 4 0 0.1Y
Apr 01, 2008 DIST-A 3 4 0.06 0.1Y
Mar 01, 2008 DIST-A 3 4 0.17 0.1Y
Feb 01, 2008 DIST-A 3 4 0.07 0Y
Jan 01, 2008 DIST-A 3 4 0.2 0Y
Dec 01, 2007 DIST-A 3 4 0.03 0Y
Nov 01, 2007 DIST-A 3 0 0Y
Oct 01, 2007 DIST-A 3 4 0.04 0Y
Sep 01, 2007 DIST-A 3 4 0.03 0Y
Aug 01, 2007 DIST-A 3 4 0.03 0Y
Jul 01, 2007 DIST-A 3 4 0.02 0Y
Jun 01, 2007 DIST-A 3 4 0.02 0Y
May 01, 2007 DIST-A 3 4 0.01 0Y
Apr 01, 2007 DIST-A 3 4 0.03 0Y
Mar 01, 2007 DIST-A 3 4 0.02 0Y
Feb 01, 2007 DIST-A 3 4 0.02 0.1Y
Jan 01, 2007 DIST-A 3 4 0.03 0.1Y
Dec 01, 2006 DIST-A 3 4 0.05 0.1Y
Nov 01, 2006 DIST-A 3 4 0.03 0.1Y
Oct 01, 2006 DIST-A 3 3 0.04 0.1Y
Sep 01, 2006 DIST-A 3 3 0.03 0.1Y
Aug 01, 2006 DIST-A 3 3 0.02 0.1Y
Jul 01, 2006 DIST-A 3 3 0.05 0.1Y
Jun 01, 2006 DIST-A 3 3 0.08 0.1Y
May 01, 2006 DIST-A 3 3 0.06 0.1Y
Apr 01, 2006 DIST-A 3 3 0.06 0.1Y
Mar 01, 2006 DIST-A 3 3 0.4 0.1Y
Feb 01, 2006 DIST-A 3 3 0.01 0.1Y
Jan 01, 2006 DIST-A 3 3 0.06 0.1Y
Dec 01, 2005 DIST-A 3 3 0.08 0.1Y
Nov 01, 2005 DIST-A 3 0 0.1Y
Oct 01, 2005 DIST-A 5 3 0.13 0.1Y
Sep 01, 2005 DIST-A 12 12 0.3 0.1Y
Aug 01, 2005 DIST-A 3 3 0.15 0.1Y
Jul 01, 2005 DIST-A 3 6 0.09 0.1Y
Jun 01, 2005 DIST-A 3 3 0.04 0.1Y
May 01, 2005 DIST-A 3 3 0.12 0.1Y
Apr 01, 2005 DIST-A 3 3 0.04 0.1Y
Mar 01, 2005 DIST-A 3 3 0.06 0.1Y
Feb 01, 2005 DIST-A 3 3 0.05 0.1Y
Jan 01, 2005 DIST-A 3 3 0.02 0.1Y
Dec 01, 2004 DIST-A 3 3 0.05 0.1Y
Nov 01, 2004 DIST-A 3 3 0.2 0.2Y
Oct 01, 2004 DIST-A 3 3 0.15 0.2Y
Sep 01, 2004 DIST-A 3 3 0.21 0.2Y
 



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