OHA Drinking Water Services
OR41
PWS ID: 00812 ---- DELPHIAN SCHOOL
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
Feb 01, 2026 DIST-A 1 1 1.09 0.4Y
Jan 01, 2026 DIST-A 1 1 0.17 0.3Y
Dec 01, 2025 DIST-A 1 1 0.03 0.3Y
Nov 01, 2025 DIST-A 1 1 0.4 0.4Y
Oct 01, 2025 DIST-A 1 1 0.12 0.4Y
Sep 01, 2025 DIST-A 1 1 0.38 0.4Y
Aug 01, 2025 DIST-A 1 1 0.02 0.4Y
Jul 01, 2025 DIST-A 1 1 1.93 0.4Y
Jun 01, 2025 DIST-A 1 1 0.06 0.2Y
May 01, 2025 DIST-A 1 1 0.19 0.3Y
Apr 01, 2025 DIST-A 1 1 0.35 0.3Y
Mar 01, 2025 DIST-A 1 1 0.24 0.3Y
Feb 01, 2025 DIST-A 1 1 0.13 0.3Y
Jan 01, 2025 DIST-A 1 1 0.17 0.3Y
Dec 01, 2024 DIST-A 1 1 0.3 0.2Y
Nov 01, 2024 DIST-A 1 1 0.37 0.2Y
Oct 01, 2024 DIST-A 1 1 0.37 0.2Y
Aug 01, 2024 DIST-A 1 1 0.06 0.2Y
Jun 01, 2024 DIST-A 1 1 0.42 0.3Y
Apr 01, 2024 DIST-A 1 1 0.23 0.5Y
Feb 01, 2024 DIST-A 1 1 0.18 0.5Y
Jan 01, 2024 DIST-A 1 1 0.07 0.5Y
Dec 01, 2023 DIST-A 1 0 0.5Y
Nov 01, 2023 DIST-A 1 1 0.2 0.5Y
Oct 01, 2023 DIST-A 1 1 0.2 0.5Y
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 0.5 0.6Y
Jun 01, 2023 DIST-A 1 2 1.9 0.6Y
May 01, 2023 DIST-A 1 1 0.7 0.4Y
Apr 01, 2023 DIST-A 1 1 0.3 0.4Y
Mar 01, 2023 DIST-A 1 0 0.4Y
Feb 01, 2023 DIST-A 1 1 0.2 0.4Y
Jan 01, 2023 DIST-A 4 4 0.2 0.4Y
Dec 01, 2022 DIST-A 1 0 0.3Y
Nov 01, 2022 DIST-A 1 1 0.1 0.3Y
Oct 01, 2022 DIST-A 1 1 0.9 0.4Y
Sep 01, 2022 DIST-A 1 1 1.1 0.4Y
Aug 01, 2022 DIST-A 1 1 0.2 0.3Y
Jul 01, 2022 DIST-A 1 1 0.2 0.3Y
Jun 01, 2022 DIST-A 1 1 0.2 0.3Y
May 01, 2022 DIST-A 1 1 0.2 0.3Y
Apr 01, 2022 DIST-A 1 3 0.2 0.3Y
Jan 01, 2022 DIST-A 1 3 0.2 0.3Y
Oct 01, 2021 DIST-A 1 3 0.6 0.3Y
Jul 01, 2021 DIST-A 1 2 0.3 0.3Y
Apr 01, 2021 DIST-A 1 1 0.11 0.3Y
Jan 01, 2021 DIST-A 1 3 0.15 0.3Y
Oct 01, 2020 DIST-A 1 4 0.53 0.3Y
Jul 01, 2020 DIST-A 1 3 0.3 0.3Y
Apr 01, 2020 DIST-A 1 3 0.3 0.3Y
Jan 01, 2020 DIST-A 1 3 0.2 0.3Y
Oct 01, 2019 DIST-A 1 3 0.3 0.3Y
Jul 01, 2019 DIST-A 1 3 0.5 0.3Y
Apr 01, 2019 DIST-A 1 3 0.2 0.2Y
Mar 01, 2019 DIST-A 3 0 0.3Y
Jan 01, 2019 DIST-A 1 3 0.14 0.3Y
Oct 01, 2018 DIST-A 1 3 0.3 0.4Y
Jul 01, 2018 DIST-A 1 3 0.2 0.4Y
Apr 01, 2018 DIST-A 1 3 0.69 0.4Y
Jan 01, 2018 DIST-A 1 4 0.5 0.2Y
Dec 01, 2017 DIST-A 1 1 0.04 0.1Y
Nov 01, 2017 DIST-A 1 1 0.25 0.1Y
Oct 01, 2017 DIST-A 3 3 0.24 0.1Y
Jul 01, 2017 DIST-A 4 6 0.12 0.1Y
Apr 01, 2017 DIST-A 1 3 0.07 0.3Y
Jan 01, 2017 DIST-A 1 3 0.1 0.3Y
Oct 01, 2016 DIST-A 1 3 0.30 0.3Y
Jul 01, 2016 DIST-A 1 3 0.6 0.3Y
Apr 01, 2016 DIST-A 1 3 0.18 0.1Y
Jan 01, 2016 DIST-A 1 3 0.08 0.1Y
Oct 01, 2015 DIST-A 1 3 0.17 0.1Y
Jul 01, 2015 DIST-A 1 3 0.12 0.1Y
Apr 01, 2015 DIST-A 1 2 0.15 0.1Y
Jan 01, 2015 DIST-A 1 3 0.10 0.1Y
Oct 01, 2014 DIST-A 1 3 0.12 0.1Y
Jul 01, 2014 DIST-A 1 3 0.18 0.2Y
Apr 01, 2014 DIST-A 1 3 0.1 0.3Y
Jan 01, 2014 DIST-A 1 3 0.2 0.3Y
Oct 01, 2013 DIST-A 1 3 0.4 0.3Y
Jul 01, 2013 DIST-A 1 3 0.36 0.2Y
Apr 01, 2013 DIST-A 1 3 0.16 0.1Y
Jan 01, 2013 DIST-A 1 3 0.2 0.1Y
Oct 01, 2012 DIST-A 1 3 0.12 0.1Y
Jul 01, 2012 DIST-A 1 3 0.1 0.1Y
Apr 01, 2012 DIST-A 1 3 0.15 0.1Y
Jan 01, 2012 DIST-A 1 3 0.14 0.1Y
Dec 01, 2011 DIST-A 1 0 0.1Y
Nov 01, 2011 DIST-A 1 0 0.1Y
Oct 01, 2011 DIST-A 1 2 0.16 0.1Y
Sep 01, 2011 DIST-A 1 0 0.1Y
Aug 01, 2011 DIST-A 1 0 0.1Y
Jul 01, 2011 DIST-A 1 3 0.14 0.1Y
Jun 01, 2011 DIST-A 1 0 0.1Y
May 01, 2011 DIST-A 1 0 0.1Y
Apr 01, 2011 DIST-A 1 3 0.15 0.1Y
Mar 01, 2011 DIST-A 1 0 0.1Y
Feb 01, 2011 DIST-A 1 0 0.1Y
Jan 01, 2011 DIST-A 1 3 0.1 0.1Y
Dec 01, 2010 DIST-A 1 1 0.13 0.1Y
Nov 01, 2010 DIST-A 1 1 0.18 0.1Y
Oct 01, 2010 DIST-A 1 1 0.1 0.1Y
Sep 01, 2010 DIST-A 1 1 0.05 0.1Y
Aug 01, 2010 DIST-A 1 1 0.38 0.2Y
Jul 01, 2010 DIST-A 1 0 0.1Y
Jun 01, 2010 DIST-A 1 0 0.1Y
May 01, 2010 DIST-A 1 1 0.07 0.1Y
Apr 01, 2010 DIST-A 1 2 0.08 0.1Y
Mar 01, 2010 DIST-A 1 1 0.07 0.2Y
Feb 01, 2010 DIST-A 1 1 0.06 0.2Y
Jan 01, 2010 DIST-A 1 1 0.06 0.3Y
Dec 01, 2009 DIST-A 1 1 0.17 0.3Y
Nov 01, 2009 DIST-A 1 1 0.19 0.3Y
Oct 01, 2009 DIST-A 5 5 0.3 0.3Y
Sep 01, 2009 DIST-A 5 4 0.2 0.3Y
Aug 01, 2009 DIST-A 1 2 0.1 0.4Y
Jul 01, 2009 DIST-A 1 2 0.1 0.4Y
Jun 01, 2009 DIST-A 1 2 0.15 0.4Y
May 01, 2009 DIST-A 1 2 0.3 0.5Y
Apr 01, 2009 DIST-A 1 2 1.0 0.5Y
Mar 01, 2009 DIST-A 1 2 0.3 0.5Y
Feb 01, 2009 DIST-A 1 1 0.8 0.5Y
Jan 01, 2009 DIST-A 1 2 0.4 0.5Y
Dec 01, 2008 DIST-A 1 4 0.2 0.5Y
Nov 01, 2008 DIST-A 1 0 0.5Y
Oct 01, 2008 DIST-A 1 2 0.2 0.5Y
Sep 01, 2008 DIST-A 1 1 0.5 0.5Y
Aug 01, 2008 DIST-A 1 1 0.5 0.5Y
Jul 01, 2008 DIST-A 1 1 0.5 0.5Y
Jun 01, 2008 DIST-A 1 1 0.8 0.5Y
May 01, 2008 DIST-A 1 1 0.5 0.5Y
Apr 01, 2008 DIST-A 1 1 0.5 0.5Y
Mar 01, 2008 DIST-A 1 1 0.5 0.5Y
Feb 01, 2008 DIST-A 1 1 0.5 0.5Y
Jan 01, 2008 DIST-A 1 1 0.4 0.5Y
Dec 01, 2007 DIST-A 1 2 0.4 0.5Y
Nov 01, 2007 DIST-A 1 1 0.5 0.5Y
Oct 01, 2007 DIST-A 1 4 0.4 0.5Y
Jul 01, 2007 DIST-A 5 6 0.7 0.5Y
Apr 01, 2007 DIST-A 5 8 0.4 0.5Y
Jan 01, 2007 DIST-A 1 6 0.4 0.5Y
Oct 01, 2006 DIST-A 1 3 0.6 0.6Y
Jul 01, 2006 DIST-A 1 6 0.5 0.6Y
Apr 01, 2006 DIST-A 1 5 0.6 0.7Y
Jan 01, 2006 DIST-A 1 4 0.8 0.8Y
Dec 01, 2005 DIST-A 1 2 0.7 0.8Y
Nov 01, 2005 DIST-A 1 0 0.8Y
Oct 01, 2005 DIST-A 1 1 0.4 0.7Y
Sep 01, 2005 DIST-A 5 6 1.4 0.7Y
Aug 01, 2005 DIST-A 5 5 0.6 0.7Y
Jul 01, 2005 DIST-A 1 2 0.3 0.6Y
Jun 01, 2005 DIST-A 1 2 0.4 0.8Y
May 01, 2005 DIST-A 1 2 0.9 0.8Y
Apr 01, 2005 DIST-A 1 2 1.3 0.8Y
Mar 01, 2005 DIST-A 1 2 1.6 0.8Y
Feb 01, 2005 DIST-A 1 2 0.6 0.6Y
Jan 01, 2005 DIST-A 1 0 0.6Y
Dec 01, 2004 DIST-A 1 2 0.4 0.6Y
Nov 01, 2004 DIST-A 1 2 0.3 0.7Y
Oct 01, 2004 DIST-A 1 2 0.2 0.8Y
Sep 01, 2004 DIST-A 1 2 0.7 1.0Y