OHA Drinking Water Services
OR41
PWS ID: 95360 ---- SISKIYOU FIELD INSTITUTE
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
Mar 01, 2026 DIST-A 1 0 0.5Y
Feb 01, 2026 DIST-A 1 0 0.5Y
Jan 01, 2026 DIST-A 1 1 0.5 0.5Y
Dec 01, 2025 DIST-A 1 1 0.5 0.5Y
Nov 01, 2025 DIST-A 4 4 0.5 0.5Y
Oct 01, 2025 DIST-A 1 1 0.5 0.5Y
Sep 01, 2025 DIST-A 1 1 0.5 0.5Y
Aug 01, 2025 DIST-A 1 1 0.5 0.5Y
Jul 01, 2025 DIST-A 1 1 0.5 0.5Y
Jun 01, 2025 DIST-A 1 1 0.5 0.5Y
May 01, 2025 DIST-A 1 1 0.5 0.5Y
Apr 01, 2025 DIST-A 1 1 0.5 0.5Y
Mar 01, 2025 DIST-A 1 1 0.5 0.5Y
Feb 01, 2025 DIST-A 1 1 0.5 0.5Y
Jan 01, 2025 DIST-A 1 1 0.5 0.5Y
Dec 01, 2024 DIST-A 1 0 0.5Y
Nov 01, 2024 DIST-A 1 0 0.5Y
Oct 01, 2024 DIST-A 1 1 0.5 0.5Y
Apr 01, 2019 DIST-A 1 0 0.5Y
Mar 01, 2019 DIST-A 1 1 0.5 0.5Y
Feb 01, 2019 DIST-A 1 1 0.5 0.5Y
Jan 01, 2019 DIST-A 1 1 0.5 0.5Y
Dec 01, 2018 DIST-A 1 1 0.5 0.5Y
Nov 01, 2018 DIST-A 1 1 0.5 0.5Y
Oct 01, 2018 DIST-A 1 1 0.5 0.5Y
Sep 01, 2018 DIST-A 1 1 0.5 0.5Y
Aug 01, 2018 DIST-A 1 1 0.5 0.5Y
Jul 01, 2018 DIST-A 1 1 0.5 0.5Y
Jun 01, 2018 DIST-A 1 1 0.5 0.5Y
May 01, 2018 DIST-A 1 1 0.5 0.5Y
Apr 01, 2018 DIST-A 1 1 0.5 0.5Y
Mar 01, 2018 DIST-A 1 1 0.5 0.5Y
Feb 01, 2018 DIST-A 1 1 0.5 0.5Y
Jan 01, 2018 DIST-A 1 1 0.5 0.5Y
Dec 01, 2017 DIST-A 1 1 0.5 0.5Y
Nov 01, 2017 DIST-A 1 1 0.5 0.5Y
Oct 01, 2017 DIST-A 1 1 0.6 0.5Y
Sep 01, 2017 DIST-A 1 1 0.5 0.5Y
Aug 01, 2017 DIST-A 1 1 0.5 0.5Y
Jul 01, 2017 DIST-A 1 1 0.5 0.5Y
Jun 01, 2017 DIST-A 1 1 0.5 0.5Y
May 01, 2017 DIST-A 1 1 0.5 0.5Y
Apr 01, 2017 DIST-A 1 1 0.5 0.5Y
Mar 01, 2017 DIST-A 1 1 0.5 0.5Y
Feb 01, 2017 DIST-A 1 1 0.5 0.5Y
Jan 01, 2017 DIST-A 1 1 0.5 0.5Y
Dec 01, 2016 DIST-A 1 1 0.5 0.5Y
Nov 01, 2016 DIST-A 1 1 0.5 0.5Y
Oct 01, 2016 DIST-A 1 1 0.5 0.5Y
Sep 01, 2016 DIST-A 1 1 0.5 0.5Y
Aug 01, 2016 DIST-A 1 1 0.5 0.5Y
Jul 01, 2016 DIST-A 1 1 0.5 0.5Y
Jun 01, 2016 DIST-A 1 1 0.5 0.5Y
May 01, 2016 DIST-A 1 1 0.5 0.5Y
Apr 01, 2016 DIST-A 1 1 0.5 0.5Y
Mar 01, 2016 DIST-A 1 1 0.5 0.5Y
Feb 01, 2016 DIST-A 1 1 0.5 0.5Y
Jan 01, 2016 DIST-A 1 1 0.5 0.5Y
Dec 01, 2015 DIST-A 1 1 0.5 0.5Y
Nov 01, 2015 DIST-A 1 1 0.5 0.5Y
Oct 01, 2015 DIST-A 1 1 0.5 0.5Y
Sep 01, 2015 DIST-A 1 1 0.5 0.5Y
Aug 01, 2015 DIST-A 1 1 0.5 0.5Y
Jul 01, 2015 DIST-A 1 1 0.5 0.5Y
Jun 01, 2015 DIST-A 1 1 0.5 0.5Y
May 01, 2015 DIST-A 1 1 0.5 0.5Y
Apr 01, 2015 DIST-A 1 1 0.5 0.4Y
Mar 01, 2015 DIST-A 1 1 0.2 0.4Y
Feb 01, 2015 DIST-A 1 1 0.5 0.5Y
Jan 01, 2015 DIST-A 1 1 1 0.5Y
Dec 01, 2014 DIST-A 1 1 0.2 0.4Y
Nov 01, 2014 DIST-A 1 1 0.5 0.4Y
Oct 01, 2014 DIST-A 1 1 0.5 0.5Y
Sep 01, 2014 DIST-A 5 4 0.5 0.5Y
Aug 01, 2014 DIST-A 5 5 0.2 0.5Y
Jul 01, 2014 DIST-A 1 1 0.5 0.5Y
Jun 01, 2014 DIST-A 1 1 0.5 0.5Y
May 01, 2014 DIST-A 1 1 0.2 0.5Y
Apr 01, 2014 DIST-A 1 1 0.5 0.5Y
Mar 01, 2014 DIST-A 1 1 0.5 0.5Y
Feb 01, 2014 DIST-A 1 1 0.5 0.5Y
Jan 01, 2014 DIST-A 1 1 0.5 0.5Y
Dec 01, 2013 DIST-A 1 1 0.4 0.5Y
Nov 01, 2013 DIST-A 1 1 0.7 0.5Y
Oct 01, 2013 DIST-A 1 1 0.5 0.5Y
Sep 01, 2013 DIST-A 1 1 0.5 0.5Y
Aug 01, 2013 DIST-A 5 5 0.5 0.5Y
Jul 01, 2013 DIST-A 1 5 0.5 0.5Y
Jun 01, 2013 DIST-A 1 1 0.5 0.5Y
May 01, 2013 DIST-A 1 1 0.5 0.5Y
Apr 01, 2013 DIST-A 1 1 0.5 0.5Y
Mar 01, 2013 DIST-A 1 1 0.5 0.5Y
Feb 01, 2013 DIST-A 5 4 0.5 0.5Y
Jan 01, 2013 DIST-A 5 5 0.5 0.5Y
Dec 01, 2012 DIST-A 1 1 0.5 0.5Y
Nov 01, 2012 DIST-A 1 1 0.5 0.5Y
Oct 01, 2012 DIST-A 1 1 0.5 0.5Y
Sep 01, 2012 DIST-A 1 1 0.5 0.5Y
Aug 01, 2012 DIST-A 1 1 0.5 0.5Y
Jul 01, 2012 DIST-A 1 1 0.5 0.5Y
Jun 01, 2012 DIST-A 1 1 0.5 0.5Y
May 01, 2012 DIST-A 1 1 0.5 0.5Y
Apr 01, 2012 DIST-A 1 1 0.5 0.5Y
Mar 01, 2012 DIST-A 1 1 0.5 0.5Y
Feb 01, 2012 DIST-A 1 1 0.5 0.5Y
Jan 01, 2012 DIST-A 1 1 0.5 0.5Y
Dec 01, 2011 DIST-A 1 1 0.5 0.5Y
Nov 01, 2011 DIST-A 1 1 0.5 0.5Y
Oct 01, 2011 DIST-A 1 1 0.5000 0.5Y
Sep 01, 2011 DIST-A 1 1 0.5000 0.5Y
Aug 01, 2011 DIST-A 1 0 0 0.5Y
Jul 01, 2011 DIST-A 1 1 0.5000 0.5Y
Jun 01, 2011 DIST-A 1 1 0.5 0.5Y
May 01, 2011 DIST-A 1 1 0.5000 0.5Y
Apr 01, 2011 DIST-A 1 1 0.5000 0.5Y
Mar 01, 2011 DIST-A 1 1 0.5000 0.5Y
Feb 01, 2011 DIST-A 1 1 0.5000 0.5Y
Jan 01, 2011 DIST-A 1 1 0.5 0.5Y
Dec 01, 2010 DIST-A 1 0 0 0.5Y
Nov 01, 2010 DIST-A 1 0 0 0.5Y
Oct 01, 2010 DIST-A 1 0 0.5Y
Sep 01, 2010 DIST-A 1 0 0.5Y
Aug 01, 2010 DIST-A 1 0 0.5Y
Jul 01, 2010 DIST-A 5 0 0.5Y
Jun 01, 2010 DIST-A 5 4 0.5 0.5Y
May 01, 2010 DIST-A 1 1 0.5 0.5Y
Apr 01, 2010 DIST-A 1 1 0.5 0.5Y
Mar 01, 2010 DIST-A 1 1 0.5 0.5Y
Feb 01, 2010 DIST-A 1 1 0.5 0.5Y
Jan 01, 2010 DIST-A 1 5 0.5000 0.5Y
Dec 01, 2009 DIST-A 1 0 0Y
Nov 01, 2009 DIST-A 1 0 0Y
Oct 01, 2009 DIST-A 1 0 0 0Y
Sep 01, 2009 DIST-A 1 0 0Y
Aug 01, 2009 DIST-A 1 0 0Y
Jul 01, 2009 DIST-A 1 0 0Y
Jun 01, 2009 DIST-A 1 0 0Y
May 01, 2009 DIST-A 1 0 0Y
Apr 01, 2009 DIST-A 1 0 0Y
Mar 01, 2009 DIST-A 1 0 0Y
Feb 01, 2009 DIST-A 1 0 0Y
Jan 01, 2009 DIST-A 1 0 0Y
Dec 01, 2008 DIST-A 1 0 0Y
Nov 01, 2008 DIST-A 1 0 0Y
Oct 01, 2008 DIST-A 1 0 0Y
Sep 01, 2008 DIST-A 1 0 0Y
Aug 01, 2008 DIST-A 1 0 0Y