OHA Drinking Water Services
OR41
PWS ID: 90872 ---- NORTHWEST ALUMINUM COMPANY ---- INACTIVE
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
IOC ARCHIVE 05/25/1993 11/10/1993 AA SODIUM 26.1 20 MG/L 192-3 Alert Chem IOC0 1993-11-10
IOC ARCHIVE 05/25/1993 11/10/1993 BA SODIUM 36.1 20 MG/L 192-1 Alert Chem IOC0 1993-11-10
IOC ARCHIVE 05/25/1993 11/10/1993 CA SODIUM 21.4 20 MG/L 192-4 Alert Chem IOC0 1993-11-10
IOC ARCHIVE 05/29/1996 07/30/1996 A SODIUM 30.7 20 MG/L 9605-163-1 Alert Chem IOC0 1996-07-30
IOC ARCHIVE 05/29/1996 07/30/1996 B SODIUM 41.4 20 MG/L 9605-163-2 Alert Chem IOC0 1996-07-30
IOC ARCHIVE 05/29/1996 07/30/1996 C SODIUM 22.7 20 MG/L 9605-163-3 Alert Chem IOC0 1996-07-30
TCR ARCHIVE 11/05/1997 11/12/1997 COLIFORM (TCR) Present Present Routine 8949 Alert TCR0 1997-11-12
TCR ARCHIVE 11/07/1997 11/12/1997 COLIFORM (TCR) Present Present Repeat 8963 Alert TCR0 1997-11-12
IOC ARCHIVE 06/01/1999 09/20/1999 AA SODIUM 35 20 MG/L 990602SAA Alert Chem IOC0 1999-09-20
IOC ARCHIVE 06/01/1999 09/20/1999 BA SODIUM 46 20 MG/L 990602SBA Alert Chem IOC0 1999-09-20
IOC ARCHIVE 06/01/1999 09/20/1999 CA SODIUM 26 20 MG/L 990602SCA Alert Chem IOC0 1999-09-20
TCR ARCHIVE 01/29/2002 02/04/2002 COLIFORM (TCR) Present Present Routine 7097 Alert TCR0 2002-02-04
TCR ARCHIVE 04/30/2002 05/09/2002 COLIFORM (TCR) Present Present Routine 7888 Alert TCR0 2002-05-09
IOC CHEM279 11/21/2002 01/21/2003 EP-A CADMIUM 0.0032 0.005 MG/L A21122AH-1I Alert Chem IOC0 2003-01-21
Notice - Sodium CHEM279 11/21/2002 01/21/2003 EP-A SODIUM 26 20 MG/L A21122AH-1I Notice Sodium 2003-01-21
Notice - Sodium CHEM279 11/21/2002 01/21/2003 EP-B SODIUM 35 20 MG/L A21122AG-1I Notice Sodium 2003-01-21
Notice - Sodium CHEM279 11/21/2002 01/21/2003 EP-C SODIUM 22 20 MG/L A21122AK-1I Notice Sodium 2003-01-21
TCR COLI667 09/30/2003 10/07/2003 DIST-A COLIFORM (TCR) Present Present Routine A31001AH1 Alert TCR0 2003-10-07
TCR COLI702 10/06/2003 10/15/2003 DIST-A COLIFORM (TCR) Present Present Routine A31007V1 Alert TCR0 2003-10-15
TCR COLI738 10/13/2003 10/29/2003 DIST-A COLIFORM (TCR) Present Present Routine A31014N1 Alert TCR0 2003-10-29
TCR COLI719 10/16/2003 10/22/2003 DIST-A COLIFORM (TCR) Present Present Repeat 3763 Alert TCR0 2003-10-22
TCR COLI728 10/16/2003 10/27/2003 DIST-A COLIFORM (TCR) Present Present Repeat 3766 Alert TCR0 2003-10-27
TCR COLI725 10/20/2003 10/24/2003 DIST-A COLIFORM (TCR) Present Present Routine 3778 Alert TCR0 2003-10-24
TCR COLI805 11/12/2003 11/17/2003 DIST-A COLIFORM (TCR) Present Present Routine 3889 Alert TCR0 2003-11-17
TCR COLI820 11/18/2003 11/24/2003 DIST-A COLIFORM (TCR) Present Present Routine 3919 Alert TCR0 2003-11-24
TCR COLI820 11/18/2003 11/24/2003 DIST-A COLIFORM (TCR) Present Present Routine 3920 Alert TCR0 2003-11-24
TCR COLI940 01/13/2004 01/15/2004 DIST-A COLIFORM (TCR) Present Present Routine 4086 Alert TCR0 2004-01-15
TCR COLI953 01/14/2004 01/20/2004 DIST-A COLIFORM (TCR) Present Present Repeat 4095 Alert TCR0 2004-01-20
TCR COLI2322 08/08/2005 08/17/2005 DIST-A COLIFORM (TCR) Present Present Routine 6617 Alert TCR0 2005-08-17
TCR COLI2327 08/10/2005 08/17/2005 DIST-A COLIFORM (TCR) Present Present Repeat 6640 Alert TCR0 2005-08-17
TCR COLI2327 08/10/2005 08/17/2005 DIST-A COLIFORM (TCR) Present Present Repeat 6641 Alert TCR0 2005-08-17
TCR COLI2327 08/10/2005 08/17/2005 DIST-A COLIFORM (TCR) Present Present Repeat 6643 Alert TCR0 2005-08-17
TCR COLI2401 09/06/2005 09/09/2005 DIST-A COLIFORM (TCR) Present Present Routine 6755 Alert TCR0 2005-09-09
TCR COLI2411 09/08/2005 09/13/2005 DIST-A COLIFORM (TCR) Present Present Repeat 6794 Alert TCR0 2005-09-13
TCR COLI2416 09/12/2005 09/16/2005 DIST-A COLIFORM (TCR) Present Present Routine 6799 Alert TCR0 2005-09-16
TCR COLI3931 01/15/2007 01/17/2007 DIST-A COLIFORM (TCR) Present Present Routine 9065 Alert TCR0 2007-01-17
TCR COLI5493 08/11/2008 08/12/2008 08/18/2008 6 DIST-A COLIFORM (TCR) Present Present Routine 11829 Alert TCR0 2008-08-12
TCR COLI5523 08/13/2008 08/20/2008 DIST-A COLIFORM (TCR) Present Present Repeat 11837 Alert TCR0 2008-08-20
TCR COLI5521 08/13/2008 08/20/2008 DIST-A COLIFORM (TCR) Present Present Repeat 11838 Alert TCR0 2008-08-20
TCR COLI5636 09/17/2008 09/18/2008 09/22/2008 4 DIST-A COLIFORM (TCR) Present Present Routine 12020 Alert TCR0 2008-09-18
TCR COLI5636 09/17/2008 09/18/2008 09/22/2008 4 DIST-A COLIFORM (TCR) Present Present Routine 12021 Alert TCR0 2008-09-18
TCR COLI5985 12/17/2008 12/18/2008 12/18/2008 0 DIST-A E. COLI Present 0 Routine 12545 Alert TCR0 2008-12-18
TCR COLI5985 12/17/2008 12/18/2008 12/18/2008 0 DIST-A E. COLI Present 0 Routine 12546 Alert TCR0 2008-12-18
TCR COLI5985 12/17/2008 12/18/2008 12/18/2008 0 DIST-A E. COLI Present 0 Routine 12547 Alert TCR0 2008-12-18
TCR COLI5985 12/17/2008 12/18/2008 12/18/2008 0 DIST-A E. COLI Present 0 Routine 12548 Alert TCR0 2008-12-18
TCR COLI5985 12/17/2008 12/18/2008 12/18/2008 0 DIST-A COLIFORM (TCR) Present Present Routine 12545 Alert TCR0 2008-12-18
TCR COLI5985 12/17/2008 12/18/2008 12/18/2008 0 DIST-A COLIFORM (TCR) Present Present Routine 12546 Alert TCR0 2008-12-18
TCR COLI5985 12/17/2008 12/18/2008 12/18/2008 0 DIST-A COLIFORM (TCR) Present Present Routine 12547 Alert TCR0 2008-12-18
TCR COLI5985 12/17/2008 12/18/2008 12/18/2008 0 DIST-A COLIFORM (TCR) Present Present Routine 12548 Alert TCR0 2008-12-18
TCR COLI6000 12/22/2008 12/24/2008 12/22/2008 -2 DIST-A E. COLI Present 0 Repeat 12557 Alert TCR0 2008-12-24
TCR COLI6000 12/22/2008 12/24/2008 12/22/2008 -2 DIST-A E. COLI Present 0 Repeat 12559 Alert TCR0 2008-12-24
TCR COLI6000 12/22/2008 12/24/2008 12/22/2008 -2 DIST-A COLIFORM (TCR) Present Present Repeat 12556 Alert TCR0 2008-12-24
TCR COLI6000 12/22/2008 12/24/2008 12/22/2008 -2 DIST-A COLIFORM (TCR) Present Present Repeat 12557 Alert TCR0 2008-12-24
TCR COLI6000 12/22/2008 12/24/2008 12/22/2008 -2 DIST-A COLIFORM (TCR) Present Present Repeat 12558 Alert TCR0 2008-12-24
TCR COLI6000 12/22/2008 12/24/2008 12/22/2008 -2 DIST-A COLIFORM (TCR) Present Present Repeat 12559 Alert TCR0 2008-12-24
TCR COLI6496 07/21/2009 07/22/2009 07/23/2009 1 DIST-A COLIFORM (TCR) Present Present Routine 13637 Alert TCR0 2009-07-22
TCR COLI6543 08/04/2009 08/05/2009 08/12/2009 7 DIST-A COLIFORM (TCR) Present Present Repeat 13710 Alert TCR0 2009-08-05
TCR COLI6943 10/13/2009 10/14/2009 10/15/2009 1 DIST-A COLIFORM (TCR) Present Present Routine 14046 Alert TCR0 2009-10-14
TCR COLI6976 10/19/2009 10/20/2009 DIST-A COLIFORM (TCR) Present Present Repeat 14078 Alert TCR0 2009-10-20
TCR COLI7116 11/18/2009 12/02/2009 11/19/2009 -13 DIST-A COLIFORM (TCR) Present Present Routine 14220 Alert TCR0 2009-12-02
TCR COLI7194 12/29/2009 12/30/2009 12/31/2009 1 DIST-A COLIFORM (TCR) Present Present Routine 14383 Alert TCR0 2009-12-30
TCR COLI7203 01/05/2010 01/06/2010 01/06/2010 0 DIST-A COLIFORM (TCR) Present Present Repeat 14413 Alert TCR0 2010-01-06
TCR COLI7203 01/05/2010 01/06/2010 01/06/2010 0 DIST-A COLIFORM (TCR) Present Present Repeat 14414 Alert TCR0 2010-01-06
TCR COLI7203 01/05/2010 01/06/2010 01/06/2010 0 DIST-A COLIFORM (TCR) Present Present Repeat 14415 Alert TCR0 2010-01-06
TCR COLI7203 01/05/2010 01/06/2010 01/06/2010 0 DIST-A COLIFORM (TCR) Present Present Repeat 14416 Alert TCR0 2010-01-06
TCR COLI7214 01/07/2010 01/08/2010 SRC-AA COLIFORM (TCR) Present Present Assessment 14426 Alert TCR0 2010-01-08
TCR COLI7364 02/17/2010 02/18/2010 02/22/2010 4 DIST-A COLIFORM (TCR) Present Present Routine 14609 Alert TCR0 2010-02-18
Notice - Sodium CHEM4472 09/15/2010 10/25/2010 EP-B SODIUM 34.7 20 MG/L PTH051701-I Notice Sodium 2010-10-25
Notice - Sodium CHEM4472 09/15/2010 10/25/2010 EP-C SODIUM 22.6 20 MG/L PTI051501-I Notice Sodium 2010-10-25
Notice - Sodium CHEM4472 09/21/2010 10/25/2010 EP-A SODIUM 22.1 20 MG/L PTI070401-I Notice Sodium 2010-10-25
TCR COLI8758 12/13/2010 12/14/2010 12/15/2010 1 DIST-A COLIFORM (TCR) Present Present Routine 16144 Alert TCR0 2010-12-14
TCR COLI8766 12/14/2010 12/15/2010 12/16/2010 1 DIST-A COLIFORM (TCR) Present Present Repeat 16152 Alert TCR0 2010-12-15
TCR COLI8801 12/20/2010 12/22/2010 DIST-A COLIFORM (TCR) Present Present Repeat 16180 Alert TCR0 2010-12-22
TCR COLI8801 12/20/2010 12/22/2010 DIST-A COLIFORM (TCR) Present Present Repeat 16181 Alert TCR0 2010-12-22
Notice - Source COLI8801 12/20/2010 12/22/2010 SRC-AA COLIFORM (TCR) Present Present Triggered 16182 Notice Source 2010-12-22
TCR COLI8934 01/26/2011 01/27/2011 DIST-A COLIFORM (TCR) Present Present Routine 16340 Alert TCR0 2011-01-27
TCR COLI9300 06/29/2011 06/30/2011 DIST-A COLIFORM (TCR) Present Present Routine 17288 Alert TCR0 2011-06-30
TCR COLI9368 07/07/2011 07/11/2011 DIST-A COLIFORM (TCR) Present Present Repeat 17334 Alert TCR0 2011-07-11
TCR COLI12136 09/15/2013 09/20/2013 09/20/2013 0 DIST-A COLIFORM (TCR) Present Present Routine 189711 Alert TCR0 2013-09-20
TCR COLI12178 09/23/2013 09/25/2013 09/24/2013 -1 DIST-A COLIFORM (TCR) Present Present Repeat 189730 Alert TCR0 2013-09-25
Notice - Source COLI12178 09/23/2013 09/25/2013 09/24/2013 -1 SRC-AA COLIFORM (TCR) Present Present Triggered 189731 Notice Source 2013-09-25
TCR COLI12247 10/02/2013 10/04/2013 10/03/2013 -1 DIST-A COLIFORM (TCR) Present Present Routine 189765 Alert TCR0 2013-10-04
TCR COLI15035 12/08/2015 12/09/2015 12/15/2015 6 DIST-A COLIFORM (TCR) Present Present Routine 194241 Alert TCR0 2015-12-09
TCR COLI17862 06/07/2018 06/08/2018 DIST-A COLIFORM (TCR) Present Present Routine 200356 Alert TCR0 2018-06-08
TCR COLI18015 07/23/2018 07/25/2018 DIST-A COLIFORM (TCR) Present Present Routine 200807 Alert TCR0 2018-07-25
TCR COLI18015 07/23/2018 07/25/2018 DIST-A COLIFORM (TCR) Present Present Routine 200808 Alert TCR0 2018-07-25
TCR COLI18015 07/23/2018 07/25/2018 DIST-A COLIFORM (TCR) Present Present Routine 200809 Alert TCR0 2018-07-25
TCR COLI18038 07/30/2018 08/01/2018 DIST-A COLIFORM (TCR) Present Present Repeat 200848 Alert TCR0 2018-08-01
TCR COLI18038 07/30/2018 08/01/2018 DIST-A COLIFORM (TCR) Present Present Repeat 200849 Alert TCR0 2018-08-01
TCR COLI18038 07/30/2018 08/01/2018 DIST-A COLIFORM (TCR) Present Present Repeat 200850 Alert TCR0 2018-08-01
TCR COLI18142 08/28/2018 08/29/2018 DIST-A COLIFORM (TCR) Present Present Routine 201133 Alert TCR0 2018-08-29
TCR COLI18142 08/28/2018 08/29/2018 DIST-A COLIFORM (TCR) Present Present Routine 201134 Alert TCR0 2018-08-29
TCR COLI18142 08/28/2018 08/29/2018 DIST-A COLIFORM (TCR) Present Present Routine 201135 Alert TCR0 2018-08-29
TCR COLI18181 09/06/2018 09/10/2018 DIST-A COLIFORM (TCR) Present Present Repeat 201222 Alert TCR0 2018-09-10
TCR COLI18181 09/06/2018 09/10/2018 DIST-A COLIFORM (TCR) Present Present Repeat 201223 Alert TCR0 2018-09-10
TCR COLI18181 09/06/2018 09/10/2018 DIST-A COLIFORM (TCR) Present Present Repeat 201224 Alert TCR0 2018-09-10
TCR COLI18373 10/30/2018 10/31/2018 DIST-A COLIFORM (TCR) Present Present Routine 201540 Alert TCR0 2018-10-31
TCR COLI18390 11/05/2018 11/07/2018 DIST-A COLIFORM (TCR) Present Present Repeat 201572 Alert TCR0 2018-11-07
TCR COLI18390 11/05/2018 11/07/2018 DIST-A COLIFORM (TCR) Present Present Repeat 201573 Alert TCR0 2018-11-07
TCR COLI18390 11/05/2018 11/07/2018 DIST-A COLIFORM (TCR) Present Present Repeat 201574 Alert TCR0 2018-11-07
TCR COLI18467 11/28/2018 11/30/2018 DIST-A COLIFORM (TCR) Present Present Routine 201697 Alert TCR0 2018-11-30
TCR COLI18488 12/03/2018 12/06/2018 DIST-A COLIFORM (TCR) Present Present Repeat 201728 Alert TCR0 2018-12-06
TCR COLI18488 12/03/2018 12/06/2018 DIST-A COLIFORM (TCR) Present Present Repeat 201729 Alert TCR0 2018-12-06
TCR COLI18646 01/29/2019 01/31/2019 DIST-A COLIFORM (TCR) Present Present Routine 202009 Alert TCR0 2019-01-31
TCR COLI18986 07/02/2019 07/03/2019 DIST-A COLIFORM (TCR) Present Present Routine 203082 Alert TCR0 2019-07-03
TCR COLI19003 07/08/2019 07/10/2019 DIST-A COLIFORM (TCR) Present Present Repeat 203112 Alert TCR0 2019-07-10
TCR COLI19003 07/08/2019 07/10/2019 DIST-A COLIFORM (TCR) Present Present Repeat 203113 Alert TCR0 2019-07-10
TCR COLI19019 07/11/2019 07/12/2019 DIST-A COLIFORM (TCR) Present Present Repeat 203182 Alert TCR0 2019-07-12
TCR COLI19164 08/19/2019 08/20/2019 DIST-A COLIFORM (TCR) Present Present Routine 203469 Alert TCR0 2019-08-20
TCR COLI19186 08/22/2019 08/23/2019 DIST-A COLIFORM (TCR) Present Present Repeat 203500 Alert TCR0 2019-08-23
TCR COLI19186 08/22/2019 08/23/2019 DIST-A COLIFORM (TCR) Present Present Repeat 203502 Alert TCR0 2019-08-23
TCR COLI19468 10/28/2019 10/29/2019 DIST-A COLIFORM (TCR) Present Present Routine 203874 Alert TCR0 2019-10-29
Notice - Sodium CHEM8839 10/28/2019 02/06/2020 EP-B SODIUM 27.4 20 MG/L 1910122001-I Notice Sodium 2020-02-06
Notice - Sodium CHEM8761 10/29/2019 12/19/2019 EP-A SODIUM 21.7 20 MG/L 1910126701-I Notice Sodium 2019-12-19
TCR COLI19482 10/31/2019 11/04/2019 DIST-A COLIFORM (TCR) Present Present Repeat 203891 Alert TCR0 2019-11-04
TCR COLI19482 10/31/2019 11/04/2019 DIST-A COLIFORM (TCR) Present Present Repeat 203892 Alert TCR0 2019-11-04
TCR COLI20323 09/29/2020 09/30/2020 DIST-A COLIFORM (TCR) Present Present Routine 206159 Alert TCR0 2020-09-30
TCR COLI20347 10/01/2020 10/02/2020 DIST-A COLIFORM (TCR) Present Present Repeat 206173 Alert TCR0 2020-10-02
TCR COLI20347 10/01/2020 10/02/2020 DIST-A COLIFORM (TCR) Present Present Repeat 206175 Alert TCR0 2020-10-02
TCR COLI20347 10/01/2020 10/02/2020 DIST-A COLIFORM (TCR) Present Present Repeat 206176 Alert TCR0 2020-10-02
TCR COLI20588 11/24/2020 11/25/2020 DIST-A E. COLI Present 0 Routine 206493 Alert TCR0 2020-11-25
TCR COLI20588 11/24/2020 11/25/2020 DIST-A COLIFORM (TCR) Present Present Routine 206493 Alert TCR0 2020-11-25
TCR COLI20606 11/30/2020 12/02/2020 DIST-A COLIFORM (TCR) Present Present Repeat 206508 Alert TCR0 2020-12-02


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