OHA Drinking Water Services
OR41
PWS ID: 94923 ---- OAK HILL 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
Oct 01, 2025 DIST-A 1 1 0.37 0.8Y
Jul 01, 2025 DIST-A 1 1 0.12 0.7Y
Apr 01, 2025 DIST-A 1 1 2.6 0.7Y
Jan 01, 2025 DIST-A 1 1 0.05 0.1Y
Oct 01, 2024 DIST-A 1 1 0.12 0.2Y
Jul 01, 2024 DIST-A 1 1 0.08 0.2Y
Apr 01, 2024 DIST-A 1 1 0.05 0.2Y
Jan 01, 2024 DIST-A 1 1 0.49 0.2Y
Oct 01, 2023 DIST-A 1 1 0.16 0.1Y
Jul 01, 2023 DIST-A 1 1 0.08 0.1Y
Apr 01, 2023 DIST-A 1 1 0.05 0.1Y
Jan 01, 2023 DIST-A 1 1 0.06 0.1Y
Oct 01, 2022 DIST-A 1 1 0.02 0.1Y
Jul 01, 2022 DIST-A 1 1 0.22 0.2Y
Apr 01, 2022 DIST-A 1 1 0.22 0.2Y
Jan 01, 2022 DIST-A 1 1 0.09 0.1Y
Oct 01, 2021 DIST-A 1 1 0.11 0.2Y
Jul 01, 2021 DIST-A 1 1 0.18 0.2Y
Apr 01, 2021 DIST-A 1 1 0.18 0.2Y
Jan 01, 2021 DIST-A 1 1 0.14 0.4Y
Oct 01, 2020 DIST-A 1 1 0.17 0.5Y
Jul 01, 2020 DIST-A 1 1 0.16 0.5Y
Apr 01, 2020 DIST-A 1 1 1.12 0.5Y
Jan 01, 2020 DIST-A 1 1 0.49 0.4Y
Oct 01, 2019 DIST-A 1 1 0.2 0.3Y
Jul 01, 2019 DIST-A 1 1 0.27 0.4Y
Apr 01, 2019 DIST-A 1 1 0.48 0.5Y
Jan 01, 2019 DIST-A 1 1 0.19 0.4Y
Oct 01, 2018 DIST-A 1 1 0.47 0.4Y
Jul 01, 2018 DIST-A 1 1 0.68 0.3Y
Apr 01, 2018 DIST-A 1 1 0.18 0.3Y
Jan 01, 2018 DIST-A 1 1 0.16 0.4Y
Oct 01, 2017 DIST-A 1 1 0.22 0.7Y
Jul 01, 2017 DIST-A 1 1 0.73 0.7Y
Apr 01, 2017 DIST-A 1 1 0.64 0.6Y
Jan 01, 2017 DIST-A 1 1 1.18 0.6Y
Oct 01, 2016 DIST-A 1 1 0.22 0.5Y
Jul 01, 2016 DIST-A 1 1 0.43 1.0Y
Apr 01, 2016 DIST-A 1 1 0.43 1.2Y
Jan 01, 2016 DIST-A 1 1 0.82 1.2Y
Oct 01, 2015 DIST-A 1 1 2.2 1.1Y
Jul 01, 2015 DIST-A 1 1 1.98 0.5Y
Apr 01, 2015 DIST-A 1 1 0.47 0.3Y
Jan 01, 2015 DIST-A 1 1 0.35 0.2Y
Oct 01, 2014 DIST-A 1 1 0.16 0.3Y
Jul 01, 2014 DIST-A 1 1 0.14 0.2Y
Apr 01, 2014 DIST-A 1 1 0.16 0.2Y
Jan 01, 2014 DIST-A 1 1 0.47 0.2Y
Oct 01, 2013 DIST-A 1 1 0.06 0.1Y
Jul 01, 2013 DIST-A 1 1 0.09 0.1Y
Apr 01, 2013 DIST-A 1 1 0.13 0.1Y
Jan 01, 2013 DIST-A 1 1 0.12 0.2Y
Oct 01, 2012 DIST-A 1 1 0.11 0.2Y
Jul 01, 2012 DIST-A 1 1 0.19 0.2Y
Apr 01, 2012 DIST-A 1 1 0.32 0.3Y
Jan 01, 2012 DIST-A 1 1 0.23 0.3Y
Oct 01, 2011 DIST-A 1 1 0.2 0.4Y
Jul 01, 2011 DIST-A 1 1 0.6 0.4Y
Apr 01, 2011 DIST-A 1 1 0.5 0.4Y
Jan 01, 2011 DIST-A 1 1 0.5 0.4Y
Oct 01, 2010 DIST-A 1 1 0.2 0.3Y
Jul 01, 2010 DIST-A 1 1 0.2 0.2Y
Apr 01, 2010 DIST-A 1 1 0.6 0.2Y
Jan 01, 2010 DIST-A 1 1 0 0.2Y
Oct 01, 2009 DIST-A 1 1 0.1 0.3Y
Jul 01, 2009 DIST-A 1 1 0.2 0.3Y
Apr 01, 2009 DIST-A 1 1 0.6 0.3Y
Jan 01, 2009 DIST-A 1 1 0.2 0.2Y
Oct 01, 2008 DIST-A 1 1 0 0.2Y
Jul 01, 2008 DIST-A 1 1 0.3 0.3Y
Apr 01, 2008 DIST-A 1 1 0.4 0.3Y
Jan 01, 2008 DIST-A 1 1 0.2 0.1Y
Oct 01, 2007 DIST-A 1 1 0.2 0.1Y
Jul 01, 2007 DIST-A 1 1 0.2 0.1Y
Apr 01, 2007 DIST-A 1 1 0 0.1Y
Jan 01, 2007 DIST-A 1 1 0.1 0.3Y
Oct 01, 2006 DIST-A 1 1 0.1 0.4Y
Jul 01, 2006 DIST-A 1 1 0 0.6Y
Apr 01, 2006 DIST-A 1 1 0.8 0.7Y
Jan 01, 2006 DIST-A 1 1 0.6 0.6Y