OHA Drinking Water Services
OR41
PWS ID: 00232 ---- COLORADO LAKE COOP
Water Quality Alerts

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Alert Date Range: From to
Alert Type
 Alert ID Sample Date Alert Date Contact
Report		 Response
Time (Days)		 Location Analyte
 Result
 Current
Alert Level		 Current
MCL		 Units Sample Type Lab Sample ID SelectAtype FilterAlertDate
NO3 ARCHIVE 11/13/1995 02/28/1996 AA NITRATE 6.6 5 10 MG/L 951114-057 Alert Chem NO30 1996-02-28
TCR ARCHIVE 02/10/1998 03/07/1998 COLIFORM (TCR) Present Present Routine 980210049 Alert TCR0 1998-03-07
TCR ARCHIVE 03/12/1998 04/08/1998 COLIFORM (TCR) Present Present Routine 980312034 Alert TCR0 1998-04-08
NO3 ARCHIVE 11/17/1998 02/25/1999 AA NITRATE 5.2 5 10 MG/L 981117-026 Alert Chem NO30 1999-02-25
NO3 ARCHIVE 04/13/1999 04/30/1999 AA NITRATE 7.1 5 10 MG/L 990413-057 Alert Chem NO30 1999-04-30
TCR ARCHIVE 05/11/1999 06/07/1999 COLIFORM (TCR) Present Present Routine 990511038 Alert TCR0 1999-06-07
TCR ARCHIVE 05/19/1999 06/07/1999 COLIFORM (TCR) Present Present Repeat 990520008 Alert TCR0 1999-06-07
TCR ARCHIVE 12/07/2001 12/17/2001 COLIFORM (TCR) Present Present Routine 37557 Alert TCR0 2001-12-17
TCR ARCHIVE 12/12/2001 12/27/2001 COLIFORM (TCR) Present Present Repeat 37751 Alert TCR0 2001-12-27
TCR ARCHIVE 12/12/2001 12/27/2001 COLIFORM (TCR) Present Present Repeat 37752 Alert TCR0 2001-12-27
TCR ARCHIVE 12/12/2001 12/27/2001 COLIFORM (TCR) Present Present Repeat 37753 Alert TCR0 2001-12-27
TCR ARCHIVE 04/05/2002 04/15/2002 COLIFORM (TCR) Present Present Routine 42838 Alert TCR0 2002-04-15
TCR ARCHIVE 04/11/2002 04/23/2002 COLIFORM (TCR) Present Present Repeat 43062 Alert TCR0 2002-04-23
TCR COLI2665 11/18/2005 11/28/2005 DIST-A COLIFORM (TCR) Present Present Routine 91240 Alert TCR0 2005-11-28
TCR COLI4816 11/16/2007 11/19/2007 11/19/2007 0 DIST-A COLIFORM (TCR) Present Present Routine 27748 Alert TCR0 2007-11-19
TCR COLI4822 11/20/2007 11/21/2007 11/21/2007 0 DIST-A COLIFORM (TCR) Present Present Repeat 157052 Alert TCR0 2007-11-21
TCR COLI4822 11/20/2007 11/21/2007 11/21/2007 0 DIST-A COLIFORM (TCR) Present Present Repeat 157054 Alert TCR0 2007-11-21
TCR COLI4884 12/10/2007 12/12/2007 12/12/2007 0 DIST-A COLIFORM (TCR) Present Present Routine 28479 Alert TCR0 2007-12-12
TCR COLI4893 12/12/2007 12/14/2007 12/14/2007 0 DIST-A COLIFORM (TCR) Present Present Repeat 158631 Alert TCR0 2007-12-14
TCR COLI4893 12/12/2007 12/14/2007 12/14/2007 0 DIST-A COLIFORM (TCR) Present Present Repeat 158632 Alert TCR0 2007-12-14
TCR COLI5022 02/08/2008 02/11/2008 02/11/2008 0 DIST-A COLIFORM (TCR) Present Present Routine 30494 Alert TCR0 2008-02-11
TCR COLI5871 11/14/2008 11/17/2008 11/17/2008 0 DIST-A COLIFORM (TCR) Present Present Routine 41846 Alert TCR0 2008-11-17
TCR COLI5882 11/17/2008 11/19/2008 11/19/2008 0 DIST-A COLIFORM (TCR) Present Present Repeat 41886 Alert TCR0 2008-11-19
TCR COLI5882 11/17/2008 11/19/2008 11/19/2008 0 DIST-A COLIFORM (TCR) Present Present Repeat 41888 Alert TCR0 2008-11-19
TCR COLI5882 11/17/2008 11/19/2008 11/19/2008 0 DIST-A COLIFORM (TCR) Present Present Repeat 41889 Alert TCR0 2008-11-19
TCR COLI5971 12/12/2008 12/15/2008 12/15/2008 0 DIST-A COLIFORM (TCR) Present Present Routine 42947 Alert TCR0 2008-12-15
TCR COLI5971 12/12/2008 12/15/2008 12/15/2008 0 DIST-A COLIFORM (TCR) Present Present Routine 42948 Alert TCR0 2008-12-15
TCR COLI5971 12/12/2008 12/15/2008 12/15/2008 0 DIST-A COLIFORM (TCR) Present Present Routine 42949 Alert TCR0 2008-12-15
TCR COLI5971 12/12/2008 12/15/2008 12/15/2008 0 DIST-A COLIFORM (TCR) Present Present Routine 42950 Alert TCR0 2008-12-15
TCR COLI6080 01/20/2009 01/21/2009 01/27/2009 6 DIST-A E. COLI Present 0 Routine 44206 Alert TCR0 2009-01-21
TCR COLI6080 01/20/2009 01/21/2009 01/27/2009 6 DIST-A E. COLI Present 0 Routine 44208 Alert TCR0 2009-01-21
TCR COLI6080 01/20/2009 01/21/2009 01/27/2009 6 DIST-A E. COLI Present 0 Routine 44209 Alert TCR0 2009-01-21
TCR COLI6080 01/20/2009 01/21/2009 01/27/2009 6 DIST-A E. COLI Present 0 Routine 44210 Alert TCR0 2009-01-21
TCR COLI6080 01/20/2009 01/21/2009 01/27/2009 6 DIST-A COLIFORM (TCR) Present Present Routine 44206 Alert TCR0 2009-01-21
TCR COLI6080 01/20/2009 01/21/2009 01/27/2009 6 DIST-A COLIFORM (TCR) Present Present Routine 44208 Alert TCR0 2009-01-21
TCR COLI6080 01/20/2009 01/21/2009 01/27/2009 6 DIST-A COLIFORM (TCR) Present Present Routine 44209 Alert TCR0 2009-01-21
TCR COLI6080 01/20/2009 01/21/2009 01/27/2009 6 DIST-A COLIFORM (TCR) Present Present Routine 44210 Alert TCR0 2009-01-21
TCR COLI6925 10/09/2009 10/12/2009 DIST-A COLIFORM (TCR) Present Present Routine 54863 Alert TCR0 2009-10-12
LCR CHEM5042 08/29/2011 09/19/2011 09/15/2011 -4 DIST-A COPPER SUMMARY 2.81 1.3 MG/L Alert Chem LCR0 2011-09-19
LCR CHEM5720 02/12/2013 03/11/2013 03/12/2013 1 DIST-A COPPER SUMMARY 1.98 1.3 MG/L Alert Chem LCR0 2013-03-11
LCR CHEM6215 01/27/2014 02/25/2014 02/20/2014 -5 DIST-A COPPER SUMMARY 0.76 1.3 MG/L Alert Chem LCR0 2014-02-25
LCRE LCRE18892 11/01/2015 12/04/2015 03/04/2016 91 EP-A LCR EXCURSION 8 >0 Alert Chem LCRE0 2015-12-04
LCRE LCRE19010 12/01/2015 01/05/2016 EP-A LCR EXCURSION 27 >0 Alert Chem LCRE0 2016-01-05
LCRE LCRE19198 01/01/2016 02/11/2016 EP-A LCR EXCURSION 1 >0 Alert Chem LCRE0 2016-02-11
LCRE LCRE21238 10/01/2016 11/08/2016 11/16/2016 8 EP-A LCR EXCURSION 1 >0 Alert Chem LCRE0 2016-11-08
LCRE LCRE22214 06/01/2017 07/06/2017 EP-A LCR EXCURSION 1 >0 Alert Chem LCRE0 2017-07-06
NO3 CHEM7662 08/11/2017 08/16/2017 08/23/2017 7 EP-A NITRATE 5.45 5 10 MG/L 1708601001-I Alert Chem NO30 2017-08-16
LCRE LCRE22573 09/01/2017 10/03/2017 10/18/2017 15 EP-A LCR EXCURSION 1 >0 Alert Chem LCRE0 2017-10-03
NO3 CHEM7735 10/09/2017 10/17/2017 10/18/2017 1 EP-A NITRATE 5.91 5 10 MG/L 1710405001-I Alert Chem NO30 2017-10-17
LCRE LCRE23177 01/01/2018 02/12/2018 02/28/2018 16 EP-A LCR EXCURSION 1 >0 Alert Chem LCRE0 2018-02-12
NO3 CHEM7844 01/15/2018 01/23/2018 04/06/2018 73 EP-A NITRATE 5.29 5 10 MG/L 1801625001-I Alert Chem NO30 2018-01-23
NO3 CHEM7919 04/12/2018 04/24/2018 04/24/2018 0 EP-A NITRATE 5.8 5 10 MG/L 1825694-I Alert Chem NO30 2018-04-24
NO3 CHEM8048 08/21/2018 08/29/2018 08/29/2018 0 EP-A NITRATE 5.5 5 10 MG/L 1862679-I Alert Chem NO30 2018-08-29
NO3 CHEM8578 08/07/2019 10/09/2019 10/14/2019 5 EP-A NITRATE 5.86 5 10 MG/L 1957004 Alert Chem NO30 2019-10-09
Notice - Sodium CHEM8578 08/07/2019 10/09/2019 10/14/2019 5 EP-A SODIUM 27.5 20 MG/L 1957004-I Notice Sodium 2019-10-09
NIT CHEM8591 08/07/2019 10/10/2019 10/14/2019 4 EP-A NITRATE-NITRITE 5.86 10 MG/L 1957004 Alert Chem NIT0 2019-10-10
LCRE LCRE27466 07/01/2020 08/11/2020 08/06/2020 -5 EP-A LCR EXCURSION 1 >0 Alert Chem LCRE0 2020-08-11
NO3 CHEM9007 07/16/2020 07/23/2020 07/23/2020 0 EP-A NITRATE 6.4 5 10 MG/L 2045204-I Alert Chem NO30 2020-07-23
NO3 CHEM9690 03/18/2022 03/29/2022 03/29/2022 0 EP-A NITRATE 5.92 5 10 MG/L 2218633-I Alert Chem NO30 2022-03-29
LCRE LCRE32968 04/01/2023 05/11/2023 12/04/2023 207 EP-A LCR EXCURSION 1 >0 Alert Chem LCRE0 2023-05-11
LCRE LCRE33790 09/01/2023 10/11/2023 12/04/2023 54 EP-A LCR EXCURSION 1 >0 Alert Chem LCRE0 2023-10-11
NO3 NO3-132 09/14/2023 09/28/2023 12/04/2023 67 EP-A NITRATE 5.9 5 10 MG/L 23-55848-I Alert Chem NO30 2023-09-28
NO3 NO3-254 04/10/2024 04/18/2024 04/18/2024 0 EP-A NITRATE 6.33 5 10 MG/L 20240410-069-I Alert Chem NO30 2024-04-18
NO3 NO3-300 07/15/2024 07/22/2024 07/31/2024 9 EP-A NITRATE 6.3 5 10 MG/L 20240715-106-I Alert Chem NO30 2024-07-22
Notice - Source TCR-2648 08/28/2024 08/30/2024 08/29/2024 -1 SRC-AA COLIFORM (TCR) Present Present Assessment 24-49614 Notice Source 2024-08-30
NO3 NO3-347 10/10/2024 10/25/2024 EP-A NITRATE 6.95 5 10 MG/L 20241010-021-I Alert Chem NO30 2024-10-25


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