OHA Drinking Water Services
OR41
PWS ID: 00691 ---- LAURELWOOD WA - SPRING
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 2.2 1.4Y
Jul 01, 2025 DIST-A 1 1 0.41 1.1Y
Apr 01, 2025 DIST-A 1 1 1.51 1.5Y
Jan 01, 2025 DIST-A 1 1 1.51 1.5Y
Jan 01, 2024 DIST-A 1 0 0Y
Jan 01, 2023 DIST-A 1 1 1.87 1.9Y
Jan 01, 2022 DIST-A 1 1 1.38 1.4Y
Oct 01, 2021 DIST-A 1 0 0.7Y
Jul 01, 2021 DIST-A 1 1 1 0.5Y
Apr 01, 2021 DIST-A 1 1 0.72 0.4Y
Jan 01, 2021 DIST-A 1 1 0.26 0.4Y
Oct 01, 2020 DIST-A 1 1 0.21 0.5Y
Jul 01, 2020 DIST-A 1 1 0.49 0.8Y
Apr 01, 2020 DIST-A 1 1 0.75 0.8Y
Jan 01, 2020 DIST-A 1 1 0.75 1.0Y
Oct 01, 2019 DIST-A 1 1 1.06 2.5Y
Jul 01, 2019 DIST-A 1 1 0.55 3.5Y
Apr 01, 2019 DIST-A 1 1 1.79 3.5Y
Jan 01, 2019 DIST-A 1 1 6.51 3.8Y
Oct 01, 2018 DIST-A 1 1 5.02 2.7Y
Jul 01, 2018 DIST-A 1 1 0.83 1.6Y
Apr 01, 2018 DIST-A 1 1 2.92 1.6Y
Jan 01, 2018 DIST-A 1 1 1.94 0.9Y
Dec 01, 2017 DIST-A 3 3 1.08 0.7Y
Oct 01, 2017 DIST-A 4 7 0.8 0.7Y
Jul 01, 2017 DIST-A 1 1 0.56 0.6Y
Apr 01, 2017 DIST-A 1 1 0.37 0.6Y
Feb 01, 2017 DIST-A 3 3 1.1 0.7Y
Jan 01, 2017 DIST-A 4 7 1.1 0.7Y
Oct 01, 2016 DIST-A 1 1 0.6 0.7Y
Jul 01, 2016 DIST-A 1 1 0.53 0.7Y
Apr 01, 2016 DIST-A 1 1 0.73 0.8Y
Jan 01, 2016 DIST-A 1 1 1.02 0.9Y
Oct 01, 2015 DIST-A 1 1 0.52 0.8Y
Jul 01, 2015 DIST-A 1 1 1.09 0.7Y
Apr 01, 2015 DIST-A 1 1 0.91 0.6Y
Jan 01, 2015 DIST-A 1 1 0.59 0.5Y
Oct 01, 2014 DIST-A 1 1 0.25 0.7Y
Jul 01, 2014 DIST-A 1 1 0.55 0.7Y
Apr 01, 2014 DIST-A 1 1 0.56 0.7Y
Jan 01, 2014 DIST-A 1 1 1.3 0.7Y
Oct 01, 2013 DIST-A 1 1 0.38 0.4Y
Jul 01, 2013 DIST-A 1 0 0.4Y
Apr 01, 2013 DIST-A 1 1 0.44 0.4Y
Jan 01, 2013 DIST-A 1 1 0.32 0.4Y
Oct 01, 2012 DIST-A 1 1 0.43 0.4Y
Jul 01, 2012 DIST-A 1 1 0.5 0.4Y
Apr 01, 2012 DIST-A 1 1 0.39 0.5Y
Jan 01, 2012 DIST-A 1 1 0.29 0.6Y
Oct 01, 2011 DIST-A 1 1 0.54 0.7Y
Jul 01, 2011 DIST-A 1 1 0.91 0.8Y
Apr 01, 2011 DIST-A 1 1 0.54 0.9Y
Jan 01, 2011 DIST-A 1 1 0.82 1.1Y
Oct 01, 2010 DIST-A 1 1 0.74 1.0Y
Jul 01, 2010 DIST-A 1 1 1.54 1.1Y
Apr 01, 2010 DIST-A 1 1 1.13 0.8Y
Jan 01, 2010 DIST-A 1 1 0.55 0.6Y