OHA Drinking Water Services
MRDL Monitoring Requirements :: Excel Spreadsheet

PWS ID: 00724 ---- ST HELENS, CITY OF
Maximum Residual Disinfection Level (MRDL) Samples

Monitoring
Period
Received Entry
Point
Samples
Required
Samples
Collected
Period
Avg
Annual
Avg
Level
Compliance
May 01, 2021 DIST-A 15 15 0.66 0.7Y
Apr 01, 2021 DIST-A 15 15 0.8 0.7Y
Mar 01, 2021 DIST-A 15 15 0.67 0.7Y
Feb 01, 2021 DIST-A 15 15 0.67 0.7Y
Jan 01, 2021 DIST-A 15 15 0.69 0.7Y
Dec 01, 2020 DIST-A 15 15 0.68 0.7Y
Nov 01, 2020 DIST-A 15 15 0.72 0.7Y
Oct 01, 2020 DIST-A 15 15 0.66 0.7Y
Sep 01, 2020 DIST-A 15 15 0.69 0.7Y
Aug 01, 2020 DIST-A 15 15 0.73 0.7Y
Jul 01, 2020 DIST-A 15 15 0.67 0.7Y
Jun 01, 2020 DIST-A 15 15 0.63 0.8Y
May 01, 2020 DIST-A 15 15 0.7 0.8Y
Apr 01, 2020 DIST-A 15 15 0.75 0.8Y
Mar 01, 2020 DIST-A 15 15 0.76 0.8Y
Feb 01, 2020 DIST-A 15 15 0.77 0.8Y
Jan 01, 2020 DIST-A 15 15 0.77 0.8Y
Dec 01, 2019 DIST-A 15 15 0.78 0.8Y
Nov 01, 2019 DIST-A 15 15 0.8 0.8Y
Oct 01, 2019 DIST-A 15 15 0.73 0.8Y
Sep 01, 2019 DIST-A 15 15 0.84 0.8Y
Aug 01, 2019 DIST-A 15 15 0.74 0.7Y
Jul 01, 2019 DIST-A 15 15 0.74 0.7Y
Jun 01, 2019 DIST-A 15 15 0.73 0.7Y
May 01, 2019 DIST-A 15 15 0.77 0.7Y
Apr 01, 2019 DIST-A 15 15 0.72 0.7Y
Mar 01, 2019 DIST-A 15 15 0.8 0.7Y
Feb 01, 2019 DIST-A 15 15 0.7 0.7Y
Jan 01, 2019 DIST-A 15 15 0.75 0.7Y
Dec 01, 2018 DIST-A 15 15 0.8 0.7Y
Nov 01, 2018 DIST-A 15 15 0.7 0.7Y
Oct 01, 2018 DIST-A 15 15 0.74 0.7Y
Sep 01, 2018 DIST-A 15 15 0.68 0.7Y
Aug 01, 2018 DIST-A 15 15 0.75 0.7Y
Jul 01, 2018 DIST-A 15 15 0.72 0.7Y
Jun 01, 2018 DIST-A 15 15 0.69 0.7Y
May 01, 2018 DIST-A 15 15 0.7 0.7Y
Apr 01, 2018 DIST-A 15 15 0.7 0.7Y
Mar 01, 2018 DIST-A 15 15 0.73 0.7Y
Feb 01, 2018 DIST-A 15 15 0.7 0.7Y
Jan 01, 2018 DIST-A 15 15 0.70 0.7Y
Dec 01, 2017 DIST-A 15 15 0.7 0.7Y
Nov 01, 2017 DIST-A 18 18 0.75 0.7Y
Oct 01, 2017 DIST-A 15 15 0.68 0.7Y
Sep 01, 2017 DIST-A 15 15 0.69 0.7Y
Aug 01, 2017 DIST-A 15 15 0.7 0.7Y
Jul 01, 2017 DIST-A 15 15 0.7 0.7Y
Jun 01, 2017 DIST-A 15 15 0.69 0.7Y
May 01, 2017 DIST-A 15 15 0.73 0.7Y
Apr 01, 2017 DIST-A 15 15 0.69 0.7Y
Mar 01, 2017 DIST-A 15 15 0.77 0.7Y
Feb 01, 2017 DIST-A 15 15 0.7 0.7Y
Jan 01, 2017 DIST-A 18 18 0.73 0.7Y
Dec 01, 2016 DIST-A 15 15 0.74 0.7Y
Nov 01, 2016 DIST-A 15 15 0.73 0.7Y
Oct 01, 2016 DIST-A 15 15 0.70 0.7Y
Sep 01, 2016 DIST-A 15 15 0.70 0.7Y
Aug 01, 2016 DIST-A 15 15 0.74 0.7Y
Jul 01, 2016 DIST-A 15 15 0.7 0.6Y
Jun 01, 2016 DIST-A 15 15 0.66 0.6Y
May 01, 2016 DIST-A 15 15 0.67 0.6Y
Apr 01, 2016 DIST-A 15 15 0.64 0.6Y
Mar 01, 2016 DIST-A 15 15 0.6 0.6Y
Feb 01, 2016 DIST-A 15 15 0.65 0.7Y
Jan 01, 2016 DIST-A 15 15 0.62 0.7Y
Dec 01, 2015 DIST-A 15 15 0.64 0.7Y
Nov 01, 2015 DIST-A 15 15 0.66 0.7Y
Oct 01, 2015 DIST-A 15 15 0.58 0.7Y
Sep 01, 2015 DIST-A 15 15 0.64 0.7Y
Aug 01, 2015 DIST-A 15 15 0.67 0.7Y
Jul 01, 2015 DIST-A 15 15 0.63 0.7Y
Jun 01, 2015 DIST-A 15 15 0.72 0.7Y
May 01, 2015 DIST-A 15 15 0.60 0.6Y
Apr 01, 2015 DIST-A 15 15 0.7 0.6Y
Mar 01, 2015 DIST-A 15 15 0.78 0.6Y
Feb 01, 2015 DIST-A 15 15 0.65 0.6Y
Jan 01, 2015 DIST-A 15 15 0.68 0.6Y
Dec 01, 2014 DIST-A 15 15 0.65 0.6Y
Nov 01, 2014 DIST-A 15 15 0.65 0.6Y
Oct 01, 2014 DIST-A 15 15 0.61 0.6Y
Sep 01, 2014 DIST-A 15 15 0.62 0.6Y
Aug 01, 2014 DIST-A 15 15 0.6 0.7Y
Jul 01, 2014 DIST-A 18 19 0.6 0.7Y
Jun 01, 2014 DIST-A 15 15 0.6 0.7Y
May 01, 2014 DIST-A 15 15 0.62 0.7Y
Apr 01, 2014 DIST-A 15 15 0.59 0.7Y
Mar 01, 2014 DIST-A 15 15 0.60 0.7Y
Feb 01, 2014 DIST-A 15 15 0.6 0.7Y
Jan 01, 2014 DIST-A 15 15 0.60 0.7Y
Dec 01, 2013 DIST-A 15 15 0.81 0.7Y
Nov 01, 2013 DIST-A 18 18 0.82 0.7Y
Oct 01, 2013 DIST-A 15 15 0.71 0.7Y
Sep 01, 2013 DIST-A 15 15 0.7 0.7Y
Aug 01, 2013 DIST-A 15 15 0.7 0.7Y
Jul 01, 2013 DIST-A 18 18 0.73 0.7Y
Jun 01, 2013 DIST-A 15 15 0.76 0.7Y
May 01, 2013 DIST-A 15 15 0.71 0.7Y
Apr 01, 2013 DIST-A 15 15 0.7 0.7Y
Mar 01, 2013 DIST-A 15 15 0.78 0.7Y
Feb 01, 2013 DIST-A 15 15 0.73 0.7Y
Jan 01, 2013 DIST-A 15 15 0.72 0.6Y
Dec 01, 2012 DIST-A 15 15 0.66 0.6Y
Nov 01, 2012 DIST-A 15 15 0.7 0.6Y
Oct 01, 2012 DIST-A 15 15 0.73 0.6Y
Sep 01, 2012 DIST-A 15 15 0.58 0.6Y
Aug 01, 2012 DIST-A 15 15 0.7 0.6Y
Jul 01, 2012 DIST-A 15 15 0.6 0.6Y
Jun 01, 2012 DIST-A 15 15 0.62 0.6Y
May 01, 2012 DIST-A 15 15 0.62 0.6Y
Apr 01, 2012 DIST-A 15 15 0.5 0.6Y
Mar 01, 2012 Mar 28, 2012 DIST-A 15 15 0.66 0.6Y
Feb 01, 2012 Feb 27, 2012 DIST-A 15 15 0.64 0.6Y
Jan 01, 2012 Feb 03, 2012 DIST-A 15 15 0.63 0.6Y
Dec 01, 2011 Jan 05, 2012 DIST-A 15 15 0.71 0.6Y
Nov 01, 2011 Nov 22, 2011 DIST-A 15 15 0.67 0.6Y
Oct 01, 2011 Oct 31, 2011 DIST-A 15 15 0.56 0.7Y
Sep 01, 2011 Oct 04, 2011 DIST-A 15 15 0.64 0.7Y
Aug 01, 2011 Sep 07, 2011 DIST-A 15 15 0.70 0.7Y
Jul 01, 2011 Aug 04, 2011 DIST-A 15 15 0.64 0.6Y
Jun 01, 2011 Jun 28, 2011 DIST-A 15 15 0.57 0.6Y
May 01, 2011 Jun 06, 2011 DIST-A 15 15 .58 0.6Y
Apr 01, 2011 Apr 28, 2011 DIST-A 15 15 0.62 0.6Y
Mar 01, 2011 Apr 01, 2011 DIST-A 15 15 0.66 0.6Y
Feb 01, 2011 Mar 01, 2011 DIST-A 15 15 0.73 0.6Y
Jan 01, 2011 Feb 04, 2011 DIST-A 15 15 0.7000 0.6Y
Dec 01, 2010 Jan 07, 2011 DIST-A 15 15 0.65 0.6Y
Nov 01, 2010 Dec 03, 2010 DIST-A 15 15 0.76 0.6Y
Oct 01, 2010 Nov 01, 2010 DIST-A 15 15 0.59 0.6Y
Sep 01, 2010 Sep 28, 2010 DIST-A 15 15 0.68 0.6Y
Aug 01, 2010 DIST-A 15 15 0.61 0.6Y
Jul 01, 2010 Aug 05, 2010 DIST-A 15 15 0.58 0.6Y
Jun 01, 2010 Jul 09, 2010 DIST-A 15 15 0.51 0.6Y
May 01, 2010 Jun 07, 2010 DIST-A 15 15 0.60 0.6Y
Apr 01, 2010 May 07, 2010 DIST-A 15 10 0.57 0.6Y
Mar 01, 2010 Mar 26, 2010 DIST-A 10 10 0.59 0.6Y
Feb 01, 2010 Feb 26, 2010 DIST-A 10 10 0.67 0.6Y
Jan 01, 2010 Feb 10, 2010 DIST-A 10 10 0.63 0.6Y
Dec 01, 2009 Jan 05, 2010 DIST-A 10 10 0.64 0.6Y
Nov 01, 2009 Dec 04, 2009 DIST-A 10 10 0.60 0.6Y
Oct 01, 2009 Oct 21, 2009 DIST-A 10 10 0.50 0.6Y
Sep 01, 2009 Sep 24, 2009 DIST-A 10 10 0.59 0.6Y
Aug 01, 2009 Sep 25, 2009 DIST-A 10 10 0.55 0.6Y
Jul 01, 2009 Sep 25, 2009 DIST-A 10 10 0.62 0.6Y
Jun 01, 2009 Sep 25, 2009 DIST-A 10 10 0.69 0.6Y
May 01, 2009 DIST-A 10 10 0.61 0.6Y
Apr 01, 2009 May 20, 2009 DIST-A 10 10 0.69 0.6Y
Mar 01, 2009 May 20, 2009 DIST-A 10 10 0.57 0.5Y
Feb 01, 2009 May 20, 2009 DIST-A 10 10 0.61 0.5Y
Jan 01, 2009 Feb 02, 2009 DIST-A 10 10 .52 0.5Y
Dec 01, 2008 Jan 08, 2009 DIST-A 10 10 0.56 0.6Y
Nov 01, 2008 Dec 03, 2008 DIST-A 10 10 .51 0.6Y
Oct 01, 2008 Oct 24, 2008 DIST-A 10 10 .61 0.6Y
Sep 01, 2008 Sep 29, 2008 DIST-A 10 10 .56 0.5Y
Aug 01, 2008 Sep 04, 2008 DIST-A 10 10 .53 0.5Y
Jul 01, 2008 Aug 04, 2008 DIST-A 10 10 .51 0.5Y
Jun 01, 2008 Jun 30, 2008 DIST-A 10 10 .47 0.5Y
May 01, 2008 Jun 02, 2008 DIST-A 10 10 .49 0.6Y
Apr 01, 2008 Apr 24, 2008 DIST-A 10 10 .51 0.6Y
Mar 01, 2008 Mar 27, 2008 DIST-A 10 10 .57 0.6Y
Feb 01, 2008 Mar 04, 2008 DIST-A 10 10 .68 0.5Y
Jan 01, 2008 Jan 31, 2008 DIST-A 10 10 .62 0.5Y
Dec 01, 2007 Jan 02, 2008 DIST-A 10 10 .61 0.5Y
Nov 01, 2007 Nov 30, 2007 DIST-A 10 10 .48 0.6Y
Oct 01, 2007 Oct 24, 2007 DIST-A 10 10 .55 0.6Y
Sep 01, 2007 Oct 05, 2007 DIST-A 10 10 .49 0.6Y
Aug 01, 2007 Sep 07, 2007 DIST-A 10 10 .58 0.6Y
Jul 01, 2007 Aug 03, 2007 DIST-A 10 10 .48 0.6Y
Jun 01, 2007 Jul 03, 2007 DIST-A 10 10 .58 0.6Y
May 01, 2007 May 31, 2007 DIST-A 10 10 .61 0.6Y
Apr 01, 2007 Apr 26, 2007 DIST-A 10 10 .48 0.6Y
Mar 01, 2007 Apr 04, 2007 DIST-A 10 10 .41 0.6Y
Feb 01, 2007 Mar 07, 2007 DIST-A 10 10 .66 0.6Y
Jan 01, 2007 Jan 29, 2007 DIST-A 10 10 0.63 0.6Y
Dec 01, 2006 Jan 04, 2007 DIST-A 10 10 .67 0.5Y
Nov 01, 2006 Nov 30, 2006 DIST-A 10 10 .57 0.5Y
Oct 01, 2006 Nov 06, 2006 DIST-A 10 10 0.59 0.5Y
Sep 01, 2006 Oct 02, 2006 DIST-A 10 10 .58 0.5Y
Aug 01, 2006 Aug 30, 2006 DIST-A 10 10 .58 0.5Y
Jul 01, 2006 Jul 27, 2006 DIST-A 10 10 .48 0.5Y
Jun 01, 2006 Jul 07, 2006 DIST-A 10 13 .45 0.5Y
May 01, 2006 May 25, 2006 DIST-A 10 10 .51 0.4Y
Apr 01, 2006 May 04, 2006 DIST-A 10 10 .56 0.4Y
Mar 01, 2006 Apr 05, 2006 DIST-A 10 10 .41 0.4Y
Feb 01, 2006 Mar 03, 2006 DIST-A 10 10 .58 0.4Y
Jan 01, 2006 Feb 01, 2006 DIST-A 10 10 .46 0.4Y
Dec 01, 2005 Dec 23, 2005 DIST-A 10 10 .49 0.4Y
Nov 01, 2005 Nov 30, 2005 DIST-A 10 10 .32 0.4Y
Oct 01, 2005 Nov 03, 2005 DIST-A 10 10 .36 0.4Y
Sep 01, 2005 Sep 28, 2005 DIST-A 10 10 .48 0.4Y
Aug 01, 2005 Aug 24, 2005 DIST-A 10 10 .45 0.4Y
Jul 01, 2005 Jul 28, 2005 DIST-A 10 10 .37 0.4Y
Jun 01, 2005 Jul 05, 2005 DIST-A 10 10 .40 0.4Y
May 01, 2005 Jun 03, 2005 DIST-A 10 10 .45 0.4Y
Apr 01, 2005 May 03, 2005 DIST-A 10 11 .48 0.4Y
Mar 01, 2005 Mar 31, 2005 DIST-A 10 11 .41 0.4Y
Feb 01, 2005 Mar 04, 2005 DIST-A 10 10 .43 0.4Y
Jan 01, 2005 Jan 26, 2005 DIST-A 10 10 .39 0.4Y
Dec 01, 2004 Dec 29, 2004 DIST-A 10 10 .47 0.4Y
Nov 01, 2004 Dec 03, 2004 DIST-A 10 10 .40 0.4Y
Oct 01, 2004 Oct 27, 2004 DIST-A 10 10 .37 0.4Y
Sep 01, 2004 Sep 30, 2004 DIST-A 10 10 .30 0.4Y
 




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