OHA Drinking Water Services
OR41
PWS ID: 00878 ---- TIGARD, 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
Apr 30, 2024 70 000000MN
Mar 31, 2024 70 7400000MN
Feb 29, 2024 70 7400000MN
Jan 31, 2024 70 7400000MN
Dec 31, 2023 70 7400000MN
Nov 30, 2023 70 7400000MN
Oct 31, 2023 70 7300000MN
Sep 30, 2023 70 7300000MN
Aug 31, 2023 70 7500000MN
Jul 31, 2023 70 7500000MN
Jun 30, 2023 70 7500000MN
May 31, 2023 70 7300000MN
Apr 30, 2023 70 7300000MN
Mar 31, 2023 70 7300000MN
Feb 28, 2023 70 7300000MN
Jan 31, 2023 70 7300000MN
Dec 31, 2022 70 7300000MN
Nov 30, 2022 70 7300000MN
Oct 31, 2022 70 7300000MN
Sep 30, 2022 70 7500000MN
Aug 31, 2022 70 7500000MN
Jul 31, 2022 70 7500000MN
Jun 30, 2022 70 7500000MN
May 31, 2022 70 7500000MN
Apr 30, 2022 70 7500000MN
Mar 31, 2022 70 7500000MN
Feb 28, 2022 70 7400000MN
Jan 31, 2022 70 7400000MN
Dec 31, 2021 70 7500000MN
Nov 30, 2021 70 7500000MN
Oct 31, 2021 70 7500000MN
Sep 30, 2021 70 7500000MN
Aug 31, 2021 70 7400000MN
Jul 31, 2021 70 7500000MN
Jun 30, 2021 70 7400000MN
May 31, 2021 70 7500000MN
Apr 30, 2021 70 7500000MN
Mar 31, 2021 70 7500000MN
Feb 28, 2021 70 7500000MN
Jan 31, 2021 70 7500000MN
Dec 31, 2020 70 7500000MN
Nov 30, 2020 70 7500000MN
Oct 31, 2020 70 7500000MN
Sep 30, 2020 70 7500000MN
Aug 31, 2020 70 7500000MN
Jul 31, 2020 70 7500000MN
Jun 30, 2020 70 7500000MN
May 31, 2020 70 7400000MN
Apr 30, 2020 70 7500000MN
Mar 31, 2020 70 7500000MN
Feb 29, 2020 70 7400000MN
Jan 31, 2020 70 7500000MN
Dec 31, 2019 60 7500000MN
Nov 30, 2019 60 7500000MN
Oct 31, 2019 60 7500000MN
Sep 30, 2019 60 7500000MN
Aug 31, 2019 60 7500000MN
Jul 31, 2019 60 7500000MN
Jun 30, 2019 60 7500000MN
May 31, 2019 60 7500000MN
Apr 30, 2019 60 7500000MN
Mar 31, 2019 60 7500000MN
Feb 28, 2019 60 7500000MN
Jan 31, 2019 60 7500000MN
Dec 31, 2018 60 7500000MN
Nov 30, 2018 60 7500000MN
Oct 31, 2018 60 7500000MN
Sep 30, 2018 60 7500000MN
Aug 31, 2018 60 7500000MN
Jul 31, 2018 60 7500000MN
Jun 30, 2018 60 7500000MN
May 31, 2018 60 7500000MN
Apr 30, 2018 60 7500000MN
Mar 31, 2018 60 7500000MN
Feb 28, 2018 60 7400000MN
Jan 31, 2018 60 7500000MN
Dec 31, 2017 60 7500000MN
Nov 30, 2017 60 7500000MN
Oct 31, 2017 60 7510300MN
Sep 30, 2017 60 7610300MN
Aug 31, 2017 60 7500000MN
Jul 31, 2017 60 7500000MN
Jun 30, 2017 60 7500000MN
May 31, 2017 60 7500000MN
Apr 30, 2017 60 7500000MN
Mar 31, 2017 60 7500000MN
Feb 28, 2017 60 7500000MN
Jan 31, 2017 60 7500000MN
Dec 31, 2016 60 7500000MN
Nov 30, 2016 60 7300000MN
Oct 31, 2016 60 7500000MN
Sep 30, 2016 60 7500000MN
Aug 31, 2016 60 7600000MN
Jul 31, 2016 60 7500000MN
Jun 30, 2016 60 7500000MN
May 31, 2016 60 7500000MN
Apr 30, 2016 60 7500000MN
Mar 31, 2016 60 7500000MN
Feb 29, 2016 60 7500000MN
Jan 31, 2016 60 7500000MN
Dec 31, 2015 60 7500000MN
Nov 30, 2015 60 7500000MN
Oct 31, 2015 60 7500000MN
Sep 30, 2015 60 7500000MN
Aug 31, 2015 60 7500000MN
Jul 31, 2015 60 7500000MN
Jun 30, 2015 60 7500000MN
May 31, 2015 60 7500000MN
Apr 30, 2015 60 7400000MN
Mar 31, 2015 60 7500000MN
Feb 28, 2015 60 7510300MN
Jan 31, 2015 60 7500000MN
Dec 31, 2014 60 7500000MN
Nov 30, 2014 60 7500000MN
Oct 31, 2014 60 75101230MN
Sep 30, 2014 60 6400000MN
Aug 31, 2014 60 6400000MN
Jul 31, 2014 60 6300000MN
Jun 30, 2014 60 6400000MN
May 31, 2014 60 6500000MN
Apr 30, 2014 60 6400000MN
Mar 31, 2014 60 6400000MN
Feb 28, 2014 60 6300000MN
Jan 31, 2014 60 6200000MN
Dec 31, 2013 60 6000000MN
Nov 30, 2013 60 6100000MN
Oct 31, 2013 60 6100000MN
Sep 30, 2013 60 6000000MN
Aug 31, 2013 60 6100000MN
Jul 31, 2013 60 6100000MN
Jun 30, 2013 60 6300000MN
May 31, 2013 60 6100000MN
Apr 30, 2013 60 6100000MN
Mar 31, 2013 60 6100000MN
Feb 28, 2013 60 6100000MN
Jan 31, 2013 60 6100000MN
Dec 31, 2012 60 6100000MN
Nov 30, 2012 60 6121911MN
Oct 31, 2012 60 6100000MN
Sep 30, 2012 60 6100000MN
Aug 31, 2012 60 6100000MN
Jul 31, 2012 60 6100000MN
Jun 30, 2012 60 6110300MN
May 31, 2012 60 6200000MN
Apr 30, 2012 60 6000000MN
Mar 31, 2012 60 6100000MN
Feb 29, 2012 60 6100000MN
Jan 31, 2012 60 6100000MN
Dec 31, 2011 60 6100000MN
Nov 30, 2011 60 6100000MN
Oct 31, 2011 60 6100000MN
Sep 30, 2011 60 6100000MN
Aug 31, 2011 60 6010300MN
Jul 31, 2011 60 6010300MN
Jun 30, 2011 60 6200000MN
May 31, 2011 60 6100000MN
Apr 30, 2011 60 6100000MN
Mar 31, 2011 60 6000000MN
Feb 28, 2011 60 6100000MN
Jan 31, 2011 60 6110300MN
Dec 31, 2010 60 6100000MN
Nov 30, 2010 60 6100000MN
Oct 31, 2010 60 6100000MN
Sep 30, 2010 60 6000000MN
Aug 31, 2010 60 6100000MN
Jul 31, 2010 60 6100000MN
Jun 30, 2010 60 6100000MN
May 31, 2010 60 6100000MN
Apr 30, 2010 60 6100000MN
Mar 31, 2010 60 6100000MN
Feb 28, 2010 60 6200000MN
Jan 31, 2010 60 6100000MN
Dec 31, 2009 60 6000000MN
Nov 30, 2009 60 6000000MN
Oct 31, 2009 60 6010300MN
Sep 30, 2009 60 6000000MN
Aug 31, 2009 60 6100000MN
Jul 31, 2009 60 6100000MN
Jun 30, 2009 60 6100000MN
May 31, 2009 60 6100000MN
Apr 30, 2009 60 6100000MN
Mar 31, 2009 60 6100000MN
Feb 28, 2009 60 6100000MN
Jan 31, 2009 60 6100000MN
Dec 31, 2008 60 6100000MN
Nov 30, 2008 60 6200000MN
Oct 31, 2008 60 6100000MN
Sep 30, 2008 60 6100000MN
Aug 31, 2008 60 6100000MN
Jul 31, 2008 60 6100000MN
Jun 30, 2008 60 6300000MN
May 31, 2008 60 6100000MN
Apr 30, 2008 60 6100000MN
Mar 31, 2008 60 6100000MN
Feb 29, 2008 60 6000000MN
Jan 31, 2008 60 6000000MN
Dec 31, 2007 60 6100000MN
Nov 30, 2007 60 6100000MN
Oct 31, 2007 60 6100000MN
Sep 30, 2007 60 6100000MN
Aug 31, 2007 60 6100000MN
Jul 31, 2007 60 6100000MN
Jun 30, 2007 60 6100000MN
May 31, 2007 60 6000000MN
Apr 30, 2007 60 6100000MN
Mar 31, 2007 60 6000000MN
Feb 28, 2007 60 6100000MN
Jan 31, 2007 60 6100000MN
Dec 31, 2006 60 6110300MN
Nov 30, 2006 60 6100000MN
Oct 31, 2006 60 6100000MN
Sep 30, 2006 60 6100000MN
Aug 31, 2006 50 6100000MN
Jul 31, 2006 50 6100000MN
Jun 30, 2006 50 6100000MN
May 31, 2006 50 6100000MN
Apr 30, 2006 50 6100000MN
Mar 31, 2006 50 6100000MN
Feb 28, 2006 50 6100000MN
Jan 31, 2006 50 6100000MN
Dec 31, 2005 50 6100000MN
Nov 30, 2005 50 6100000MN
Oct 31, 2005 50 6100000MN
Sep 30, 2005 50 6100000MN
Aug 31, 2005 50 6100000MN
Jul 31, 2005 50 6100000MN
Jun 30, 2005 50 6100000MN
May 31, 2005 50 6120600MN
Apr 30, 2005 50 6100000MN
Mar 31, 2005 50 6100000MN
Feb 28, 2005 50 6100000MN
Jan 31, 2005 50 6100000MN
Dec 31, 2004 50 6100000MN
Nov 30, 2004 50 6100000MN
Oct 31, 2004 50 6110300MN
Sep 30, 2004 50 6100000MN
Aug 31, 2004 50 5100000MN
Jul 31, 2004 50 5100000MN
Jun 30, 2004 50 5100000MN
May 31, 2004 50 5100000MN
Apr 30, 2004 50 5100000MN
Mar 31, 2004 50 5100000MN
Feb 29, 2004 50 5100000MN
Jan 31, 2004 50 5100000MN
Dec 31, 2003 50 5100000MN
Nov 30, 2003 50 5100000MN
Oct 31, 2003 50 5100000MN
Sep 30, 2003 50 5100000MN
Aug 31, 2003 50 5100000MN
Jul 31, 2003 50 5100000MN
Jun 30, 2003 50 5100000MN
May 31, 2003 50 5100000MN
Apr 30, 2003 50 5100000MN
Mar 31, 2003 50 5100000MN
Feb 28, 2003 50 5000000MN
Jan 31, 2003 50 5100000MN
Dec 31, 2002 50 5100000MN
Nov 30, 2002 50 5110300MN
Oct 31, 2002 50 5100000MN
Sep 30, 2002 50 5100000MN
Aug 31, 2002 50 5100000MN
Jul 31, 2002 50 5100000MN
Jun 30, 2002 50 5100000MN
May 31, 2002 1 5300000MN
Apr 30, 2002 1 5100000MN
Mar 31, 2002 1 5100000MN
Feb 28, 2002 1 5100000MN
Jan 31, 2002 1 5100000MN
Exclude results older than 2021


More information for this water system: SDWIS ID 4076
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