OHA Drinking Water Services
OR41
PWS ID: 90556 ---- TRIANGLE LAKE HIGH/ELEM SD 90
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
Jan 01, 2026 DIST-A 1 2 0.57 0.6Y
Jul 01, 2025 DIST-A 1 1 0.54 0.6Y
Apr 01, 2025 DIST-A 1 1 0.76 0.7Y
Jan 01, 2025 DIST-A 1 1 0.41 0.7Y
Oct 01, 2024 DIST-A 1 1 0.7 0.7Y
Jul 01, 2024 DIST-A 1 1 0.85 0.6Y
Apr 01, 2024 DIST-A 1 1 0.75 0.6Y
Jan 01, 2024 DIST-A 1 1 0.44 0.6Y
Oct 01, 2023 DIST-A 1 1 0.55 0.6Y
Jul 01, 2023 DIST-A 1 1 0.61 0.6Y
Apr 01, 2023 DIST-A 1 1 0.63 0.6Y
Jan 01, 2023 DIST-A 1 1 0.56 0.6Y
Oct 01, 2022 DIST-A 1 1 0.54 0.7Y
Jul 01, 2022 DIST-A 1 1 0.81 0.7Y
Apr 01, 2022 DIST-A 1 2 0.67 0.6Y
Jan 01, 2022 DIST-A 1 1 0.76 0.5Y
Oct 01, 2021 DIST-A 1 1 0.64 0.5Y
Jul 01, 2021 DIST-A 1 1 0.36 0.5Y
Apr 01, 2021 DIST-A 1 1 0.24 0.6Y
Jan 01, 2021 DIST-A 1 1 0.74 0.7Y
Oct 01, 2020 DIST-A 1 1 0.6 0.7Y
Jul 01, 2020 DIST-A 1 1 0.69 0.8Y
Apr 01, 2020 DIST-A 1 1 0.87 0.8Y
Jan 01, 2020 DIST-A 1 1 0.74 0.8Y
Oct 01, 2019 DIST-A 1 1 0.88 0.7Y
Jul 01, 2019 DIST-A 1 1 0.58 0.6Y
Apr 01, 2019 DIST-A 1 1 0.92 0.7Y
Jan 01, 2019 DIST-A 1 1 0.48 0.7Y
Oct 01, 2018 DIST-A 1 1 0.58 0.7Y
Jul 01, 2018 DIST-A 1 1 0.96 0.7Y
Apr 01, 2018 DIST-A 1 1 0.87 0.6Y
Jan 01, 2018 DIST-A 1 1 0.57 0.7Y
Oct 01, 2017 DIST-A 1 1 0.38 0.8Y
Jul 01, 2017 DIST-A 1 1 0.63 0.9Y
Apr 01, 2017 DIST-A 1 1 1.19 0.8Y
Jan 01, 2017 DIST-A 1 1 1.18 0.6Y
Oct 01, 2016 DIST-A 1 1 0.44 0.4Y
Jul 01, 2016 DIST-A 1 1 0.46 1.0Y
Apr 01, 2016 DIST-A 1 1 0.4 1.5Y
Oct 01, 2015 DIST-A 1 1 2.2 1.6Y
Jul 01, 2015 DIST-A 1 1 1.85 1.4Y
Apr 01, 2015 DIST-A 1 1 1.59 1.2Y
Jan 01, 2015 DIST-A 1 1 0.81 0.9Y
Jul 01, 2014 DIST-A 1 1 1.21 0.8Y
Apr 01, 2014 DIST-A 1 1 0.81 0.5Y
Jan 01, 2014 DIST-A 1 1 0.44 0.4Y
Oct 01, 2013 DIST-A 1 1 0.7 0.5Y
Jul 01, 2013 DIST-A 1 1 0.2 0.8Y
Apr 01, 2013 DIST-A 1 1 0.25 0.8Y
Jan 01, 2013 DIST-A 1 1 0.88 0.9Y
Oct 01, 2012 DIST-A 1 1 1.76 0.7Y
Jul 01, 2012 DIST-A 1 1 0.2 0.3Y
Apr 01, 2012 DIST-A 1 1 0.6100 0.4Y
Jan 01, 2012 DIST-A 1 1 0.2700 0.3Y
Oct 01, 2011 DIST-A 1 1 0.3000 0.3Y
Jul 01, 2011 DIST-A 1 1 0.3200 0.3Y
Apr 01, 2011 DIST-A 1 1 0.2000 0.3Y
Jan 01, 2011 DIST-A 1 1 0.3500 0.3Y
Oct 01, 2010 DIST-A 1 1 0.2700 0.3Y
Jul 01, 2010 DIST-A 1 1 0.2900 0.3Y
Apr 01, 2010 DIST-A 1 1 0.2700 0.3Y
Jan 01, 2010 DIST-A 1 1 0.3500 0.3Y
Oct 01, 2009 DIST-A 1 1 0.1300 0Y
Jul 01, 2009 DIST-A 1 1 0.3200 0Y
Apr 01, 2009 DIST-A 1 1 0.3100 0Y
Jan 01, 2009 DIST-A 1 1 0.1900 0Y
Oct 01, 2008 DIST-A 1 0 0Y
Jul 01, 2008 DIST-A 1 1 0.2100 0Y
Apr 01, 2008 DIST-A 1 1 0.3200 0Y
Jan 01, 2008 DIST-A 1 1 0.3100 0Y
Oct 01, 2007 DIST-A 1 0 0Y
Jul 01, 2007 DIST-A 1 1 0.1900 0Y
Apr 01, 2007 DIST-A 1 1 0.3000 0Y
Jan 01, 2007 DIST-A 1 1 0.3200 0Y
Oct 01, 2006 DIST-A 1 1 0.5400 0Y
Jul 01, 2006 DIST-A 1 2 0.2150 0Y
Apr 01, 2006 DIST-A 1 0 0Y
Jan 01, 2006 DIST-A 1 0 0Y
Oct 01, 2005 DIST-A 1 1 0.0200 0Y
Jul 01, 2005 DIST-A 1 1 0.4000 0Y
Apr 01, 2005 DIST-A 1 0 0Y
Jan 01, 2005 DIST-A 1 0 0Y
Oct 01, 2004 DIST-A 1 0 0Y