OHA Drinking Water Services
OR41
PWS ID: 00357 ---- GRESHAM, CITY OF
Coliform Summary History

Note: Samples for a given monitoring period are due 10 days after period end date. Therefore the most recent monitoring periods may show zero samples reported. This does not mean the water system is out of compliance.

Number of Samples Reported
Abbreviations: TC+: Total Coliform Positive, EC+: E. Coli Positive
Exclude results older than 2021
Period End Date Routines Required Routines Reported Routine TC+ Routine EC+ Repeats Reported Repeat TC+ Repeat EC+ Period Type
May 31, 2024 80 000000MN
Apr 30, 2024 80 6000000MN
Mar 31, 2024 80 8000000MN
Feb 29, 2024 80 8000000MN
Jan 31, 2024 80 8000000MN
Dec 31, 2023 80 8000000MN
Nov 30, 2023 80 8000000MN
Oct 31, 2023 80 8000000MN
Sep 30, 2023 80 8000000MN
Aug 31, 2023 80 8000000MN
Jul 31, 2023 80 8000000MN
Jun 30, 2023 80 8000000MN
May 31, 2023 80 8000000MN
Apr 30, 2023 80 8000000MN
Mar 31, 2023 80 8000000MN
Feb 28, 2023 80 8000000MN
Jan 31, 2023 80 8000000MN
Dec 31, 2022 80 8000000MN
Nov 30, 2022 80 8000000MN
Oct 31, 2022 80 8000000MN
Sep 30, 2022 80 8000000MN
Aug 31, 2022 80 8000000MN
Jul 31, 2022 80 8000000MN
Jun 30, 2022 80 8000000MN
May 31, 2022 80 8000000MN
Apr 30, 2022 80 8000000MN
Mar 31, 2022 80 8000000MN
Feb 28, 2022 80 8000000MN
Jan 31, 2022 80 8000000MN
Dec 31, 2021 80 8000000MN
Nov 30, 2021 80 8000000MN
Oct 31, 2021 80 8000000MN
Sep 30, 2021 80 8000000MN
Aug 31, 2021 80 8000000MN
Jul 31, 2021 80 8000000MN
Jun 30, 2021 80 8000000MN
May 31, 2021 80 8000000MN
Apr 30, 2021 80 8000000MN
Mar 31, 2021 80 8000000MN
Feb 28, 2021 80 8000000MN
Jan 31, 2021 80 8000000MN
Dec 31, 2020 80 8000000MN
Nov 30, 2020 80 8000000MN
Oct 31, 2020 80 8000000MN
Sep 30, 2020 80 8000000MN
Aug 31, 2020 80 8000000MN
Jul 31, 2020 80 8000000MN
Jun 30, 2020 80 8000000MN
May 31, 2020 80 8000000MN
Apr 30, 2020 80 8000000MN
Mar 31, 2020 80 8000000MN
Feb 29, 2020 80 8000000MN
Jan 31, 2020 80 8000000MN
Dec 31, 2019 80 8000000MN
Nov 30, 2019 80 8000000MN
Oct 31, 2019 80 8000000MN
Sep 30, 2019 80 10000000MN
Aug 31, 2019 80 8000000MN
Jul 31, 2019 80 8000000MN
Jun 30, 2019 80 8000000MN
May 31, 2019 80 8000000MN
Apr 30, 2019 80 8000000MN
Mar 31, 2019 80 8000000MN
Feb 28, 2019 80 8000000MN
Jan 31, 2019 80 8000000MN
Dec 31, 2018 80 8000000MN
Nov 30, 2018 80 8000000MN
Oct 31, 2018 80 8000000MN
Sep 30, 2018 80 8000000MN
Aug 31, 2018 80 8000000MN
Jul 31, 2018 80 8000000MN
Jun 30, 2018 80 8000000MN
May 31, 2018 80 8000000MN
Apr 30, 2018 80 8000000MN
Mar 31, 2018 80 8000000MN
Feb 28, 2018 80 8000000MN
Jan 31, 2018 80 8000000MN
Dec 31, 2017 80 8000000MN
Nov 30, 2017 80 8000000MN
Oct 31, 2017 80 8000000MN
Sep 30, 2017 80 8000000MN
Aug 31, 2017 80 8000000MN
Jul 31, 2017 80 8000000MN
Jun 30, 2017 80 8000000MN
May 31, 2017 80 8000000MN
Apr 30, 2017 80 8000000MN
Mar 31, 2017 80 8000000MN
Feb 28, 2017 80 8000000MN
Jan 31, 2017 80 8000000MN
Dec 31, 2016 80 8000000MN
Nov 30, 2016 80 8010300MN
Oct 31, 2016 80 8000000MN
Sep 30, 2016 80 8000000MN
Aug 31, 2016 80 8000000MN
Jul 31, 2016 80 8000000MN
Jun 30, 2016 80 8000000MN
May 31, 2016 80 8000000MN
Apr 30, 2016 80 8000000MN
Mar 31, 2016 70 7000000MN
Feb 29, 2016 70 7000000MN
Jan 31, 2016 70 7000000MN
Dec 31, 2015 70 7000000MN
Nov 30, 2015 70 7000000MN
Oct 31, 2015 70 7000000MN
Sep 30, 2015 70 7000000MN
Aug 31, 2015 70 7000000MN
Jul 31, 2015 70 7000000MN
Jun 30, 2015 70 7000000MN
May 31, 2015 70 7000000MN
Apr 30, 2015 70 7000000MN
Mar 31, 2015 70 7000000MN
Feb 28, 2015 70 7000000MN
Jan 31, 2015 70 7000000MN
Dec 31, 2014 70 7000000MN
Nov 30, 2014 70 7000000MN
Oct 31, 2014 70 7010300MN
Sep 30, 2014 70 7000000MN
Aug 31, 2014 70 7000000MN
Jul 31, 2014 70 7000000MN
Jun 30, 2014 70 7000000MN
May 31, 2014 70 7000000MN
Apr 30, 2014 70 7000000MN
Mar 31, 2014 70 7000000MN
Feb 28, 2014 70 7000000MN
Jan 31, 2014 70 7000000MN
Dec 31, 2013 70 7000000MN
Nov 30, 2013 70 7000000MN
Oct 31, 2013 70 7000000MN
Sep 30, 2013 70 7000000MN
Aug 31, 2013 70 7000000MN
Jul 31, 2013 70 7010300MN
Jun 30, 2013 70 7000000MN
May 31, 2013 70 7000000MN
Apr 30, 2013 70 7000000MN
Mar 31, 2013 70 7000000MN
Feb 28, 2013 70 7000000MN
Jan 31, 2013 70 7000000MN
Dec 31, 2012 70 7000000MN
Nov 30, 2012 70 7000000MN
Oct 31, 2012 70 7000000MN
Sep 30, 2012 70 7000000MN
Aug 31, 2012 70 7000000MN
Jul 31, 2012 70 7000000MN
Jun 30, 2012 70 7000000MN
May 31, 2012 70 7000000MN
Apr 30, 2012 70 7000000MN
Mar 31, 2012 70 7000000MN
Feb 29, 2012 70 7000000MN
Jan 31, 2012 70 7000000MN
Dec 31, 2011 70 7000000MN
Nov 30, 2011 70 7000000MN
Oct 31, 2011 70 7000000MN
Sep 30, 2011 70 7010300MN
Aug 31, 2011 70 7000000MN
Jul 31, 2011 70 7000000MN
Jun 30, 2011 70 7000000MN
May 31, 2011 70 7000000MN
Apr 30, 2011 70 7000000MN
Mar 31, 2011 70 7000000MN
Feb 28, 2011 70 7000000MN
Jan 31, 2011 70 7000000MN
Dec 31, 2010 70 7000000MN
Nov 30, 2010 70 7000000MN
Oct 31, 2010 70 7000000MN
Sep 30, 2010 70 7020600MN
Aug 31, 2010 70 7000000MN
Jul 31, 2010 70 7100000MN
Jun 30, 2010 70 7000000MN
May 31, 2010 70 7000000MN
Apr 30, 2010 70 7000000MN
Mar 31, 2010 70 7000000MN
Feb 28, 2010 70 7000000MN
Jan 31, 2010 70 7000000MN
Dec 31, 2009 70 7000000MN
Nov 30, 2009 70 7000000MN
Oct 31, 2009 70 7000000MN
Sep 30, 2009 70 7000000MN
Aug 31, 2009 70 7000000MN
Jul 31, 2009 70 7000000MN
Jun 30, 2009 70 7000000MN
May 31, 2009 70 7000000MN
Apr 30, 2009 70 7000000MN
Mar 31, 2009 70 7000000MN
Feb 28, 2009 70 7000000MN
Jan 31, 2009 70 7000000MN
Dec 31, 2008 70 7000000MN
Nov 30, 2008 70 7000000MN
Oct 31, 2008 70 7000000MN
Sep 30, 2008 70 7010300MN
Aug 31, 2008 70 7000000MN
Jul 31, 2008 70 7000000MN
Jun 30, 2008 70 7000000MN
May 31, 2008 70 7000000MN
Apr 30, 2008 70 7000000MN
Mar 31, 2008 70 7000000MN
Feb 29, 2008 70 7000000MN
Jan 31, 2008 70 7000000MN
Dec 31, 2007 70 7000000MN
Nov 30, 2007 70 7000000MN
Oct 31, 2007 70 7000000MN
Sep 30, 2007 70 7000000MN
Aug 31, 2007 70 7000000MN
Jul 31, 2007 70 7000000MN
Jun 30, 2007 70 7000000MN
May 31, 2007 70 7000000MN
Apr 30, 2007 70 7000000MN
Mar 31, 2007 70 7000000MN
Feb 28, 2007 70 7000000MN
Jan 31, 2007 70 7000000MN
Dec 31, 2006 70 7000000MN
Nov 30, 2006 70 7000000MN
Oct 31, 2006 70 7000000MN
Sep 30, 2006 70 7000000MN
Aug 31, 2006 70 7000000MN
Jul 31, 2006 70 7000000MN
Jun 30, 2006 70 7000000MN
May 31, 2006 70 7000000MN
Apr 30, 2006 70 7000000MN
Mar 31, 2006 70 7000000MN
Feb 28, 2006 70 6900000MN
Jan 31, 2006 70 7000000MN
Dec 31, 2005 70 7000000MN
Nov 30, 2005 70 7000000MN
Oct 31, 2005 70 7000000MN
Sep 30, 2005 70 7000000MN
Aug 31, 2005 70 7000000MN
Jul 31, 2005 70 7000000MN
Jun 30, 2005 70 7000000MN
May 31, 2005 70 7000000MN
Apr 30, 2005 70 7000000MN
Mar 31, 2005 70 7000000MN
Feb 28, 2005 50 7000000MN
Jan 31, 2005 50 7000000MN
Dec 31, 2004 50 7000000MN
Nov 30, 2004 50 7000000MN
Oct 31, 2004 50 7010300MN
Sep 30, 2004 50 7100000MN
Aug 31, 2004 50 7010300MN
Jul 31, 2004 50 7000000MN
Jun 30, 2004 50 7000000MN
May 31, 2004 50 7000000MN
Apr 30, 2004 50 7000000MN
Mar 31, 2004 50 7000000MN
Feb 29, 2004 50 7000000MN
Jan 31, 2004 50 7000000MN
Dec 31, 2003 50 7000000MN
Nov 30, 2003 50 7000000MN
Oct 31, 2003 50 7000000MN
Sep 30, 2003 50 7000000MN
Aug 31, 2003 50 7010500MN
Jul 31, 2003 50 12200000MN
Jun 30, 2003 50 10000000MN
May 31, 2003 50 5000000MN
Apr 30, 2003 50 5000000MN
Mar 31, 2003 50 6200000MN
Feb 28, 2003 50 5000000MN
Jan 31, 2003 50 5000000MN
Dec 31, 2002 50 5000000MN
Nov 30, 2002 50 5010300MN
Oct 31, 2002 50 5000000MN
Sep 30, 2002 50 5010000MN
Aug 31, 2002 50 5000000MN
Jul 31, 2002 50 5000000MN
Jun 30, 2002 50 5000000MN
May 31, 2002 50 5000000MN
Apr 30, 2002 50 5000000MN
Mar 31, 2002 50 5000000MN
Feb 28, 2002 50 5000000MN
Jan 31, 2002 50 5000000MN
Exclude results older than 2021

More information for this water system: SDWIS ID 4040
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