OHA Drinking Water Services
OR41
PWS ID: 00993 ---- LEAFWOOD ASSOCIATION
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 0.25 0.3Y
Jul 01, 2025 DIST-A 1 1 0.25 0.3Y
Apr 01, 2025 DIST-A 1 1 0.25 0.3Y
Jan 01, 2025 DIST-A 1 1 0.25 0.3Y
Oct 01, 2024 DIST-A 1 1 0.25 0.3Y
Jul 01, 2024 DIST-A 1 1 0.25 0.3Y
Apr 01, 2024 DIST-A 1 1 0.25 0.3Y
Jan 01, 2024 DIST-A 1 1 0.25 0.3Y
Oct 01, 2023 DIST-A 1 1 0.25 0.3Y
Jul 01, 2023 DIST-A 1 1 0.25 0.3Y
Apr 01, 2023 DIST-A 1 1 0.25 0.3Y
Jan 01, 2023 DIST-A 1 1 0.25 0.3Y
Oct 01, 2022 DIST-A 1 1 0.25 0.3Y
Jul 01, 2022 DIST-A 1 1 0.25 0.3Y
Apr 01, 2022 DIST-A 1 1 0.25 0.3Y
Jan 01, 2022 DIST-A 1 1 0.25 0.3Y
Oct 01, 2021 DIST-A 1 1 0.25 0.3Y
Jul 01, 2021 DIST-A 1 1 0.25 0.3Y
Apr 01, 2021 DIST-A 1 1 0.25 0.3Y
Jan 01, 2021 DIST-A 1 1 0.25 0.3Y
Oct 01, 2020 DIST-A 1 1 0.25 0.3Y
Jul 01, 2020 DIST-A 1 1 0.25 0.3Y
Apr 01, 2020 DIST-A 1 1 0.25 0.3Y
Jan 01, 2020 DIST-A 1 1 0.25 0.3Y
Oct 01, 2019 DIST-A 1 1 0.25 0.3Y
Jul 01, 2019 DIST-A 1 1 0.25 0.3Y
Apr 01, 2019 DIST-A 1 1 0.25 0.3Y
Jan 01, 2019 DIST-A 1 1 0.25 0.3Y
Oct 01, 2018 DIST-A 1 1 0.25 0.3Y
Jul 01, 2018 DIST-A 1 1 0.25 0.3Y
Apr 01, 2018 DIST-A 1 1 0.25 0.3Y
Jan 01, 2018 DIST-A 1 1 0.25 0.3Y
Oct 01, 2014 DIST-A 1 1 0.25 0.3Y
Oct 01, 2013 DIST-A 1 1 0.2 0.3Y
Jul 01, 2013 DIST-A 1 1 0.4 0.4Y
Apr 01, 2013 DIST-A 1 1 0.25 0.4Y
Jan 01, 2013 DIST-A 1 1 0.3 0.3Y
Oct 01, 2012 DIST-A 1 1 0.5 0.3Y
Jul 01, 2012 DIST-A 1 1 0.35 0.3Y
Apr 01, 2012 DIST-A 1 1 0.2000 0.3Y
Jan 01, 2012 DIST-A 1 1 0.2500 0.3Y
Oct 01, 2011 DIST-A 1 1 0.5000 0.3Y
Jul 01, 2011 DIST-A 1 1 0.2500 0.3Y
Apr 01, 2011 DIST-A 1 1 0.2000 0.3Y
Jan 01, 2011 DIST-A 1 1 0.3000 0.3Y
Oct 01, 2010 DIST-A 1 1 0.3000 0.3Y
Jul 01, 2010 DIST-A 1 1 0.3000 0.3Y
Apr 01, 2010 DIST-A 1 1 0.2000 0.2Y
Jan 01, 2010 DIST-A 1 1 0.2500 0.3Y