OHA Drinking Water Services
OR41
PWS ID: 00681 ---- OCHOCO WEST WTR & SAN AUTHORITY
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
 Alert Level MCL Units Sample Type Lab Sample ID SelectAtype FilterAlertDate
IOC ARCHIVE 08/25/1993 12/13/1993 A NICKEL 0.1 0.1 MG/L 748 Alert Chem IOC0 1993-12-13
TCR ARCHIVE 10/03/1994 10/19/1994 COLIFORM (TCR) Present Present Routine 6570 Alert TCR0 1994-10-19
ARS CHEM354 12/05/2001 03/31/2003 SRC-AB ARSENIC 0.047 0.01 MG/L A11206AB-2 Alert Chem CMCL ARS0 2003-03-31
ARS CHEM354 12/05/2001 03/31/2003 SRC-AB ARSENIC 0.12 0.01 MG/L A11206AB-3 Alert Chem CMCL ARS0 2003-03-31
ARS CHEM82 01/03/2002 09/12/2002 SRC-AB ARSENIC 0.16 0.01 MG/L A20103AM-1 Alert Chem CMCL ARS0 2002-09-12
ARS CHEM82 06/10/2002 09/12/2002 SRC-AB ARSENIC 0.15 0.01 MG/L A20610R-1 Alert Chem CMCL ARS0 2002-09-12
ARS CHEM388 02/25/2003 05/08/2003 SRC-AB ARSENIC 0.12 0.01 MG/L A30225Y-1I Alert Chem CMCL ARS0 2003-05-08
Notice - Sodium CHEM388 02/25/2003 05/08/2003 SRC-AB SODIUM 28 20 MG/L A30225Y-1I Notice Sodium 2003-05-08
ARS CHEM1027 02/25/2003 12/10/2004 EP-A ARSENIC 0.12 0.01 MG/L A30225Y-1I Alert Chem CMCL ARS0 2004-12-10
Notice - Sodium CHEM1027 02/25/2003 12/10/2004 EP-A SODIUM 28 20 MG/L A30225Y-1I Notice Sodium 2004-12-10
TCR COLI2520 05/19/2005 10/12/2005 DIST-A E. COLI Present 0 Routine A50519A1 Alert TCR0 2005-10-12
TCR COLI2520 05/19/2005 10/12/2005 DIST-A COLIFORM (TCR) Present Present Routine A50519A1 Alert TCR0 2005-10-12
ARS CHEM3816 07/21/2009 11/06/2009 09/23/2009 -44 EP-A ARSENIC 0.0329 0.01 MG/L 090755801A-I Alert Chem CMCL ARS0 2009-11-06
ARS CHEM3816 07/30/2009 11/06/2009 09/23/2009 -44 SRC-AB ARSENIC 0.146 0.01 MG/L 090776101A-I Alert Chem CMCL ARS0 2009-11-06
ARS CHEM3708 09/08/2009 09/21/2009 09/22/2009 1 EP-A ARSENIC 0.014 0.01 MG/L 090929601A-I Alert Chem CMCL ARS0 2009-09-21
TCR COLI7258 01/20/2010 01/26/2010 01/28/2010 2 SRC-AA COLIFORM (TCR) Present Present Assessment X03252BR Alert TCR0 2010-01-26
Notice - Source COLI7381 02/24/2010 02/25/2010 SRC-AA COLIFORM (TCR) Present Present Assessment X03398BR Notice Source 2010-02-25
TCR COLI8191 09/08/2010 09/09/2010 SRC-AA COLIFORM (TCR) Present Present Assessment X04896BR Alert TCR0 2010-09-09
Notice - Source COLI9467 08/02/2011 08/05/2011 SRC-AA COLIFORM (TCR) Present Present Assessment X07743BR Notice Source 2011-08-05
Notice - Source COLI12316 10/14/2013 10/15/2013 SRC-AA COLIFORM (TCR) Present Present Assessment X013662B Notice Source 2013-10-15
Notice - Sodium CHEM6788 06/01/2015 07/22/2015 EP-A SODIUM 23.4 20 MG/L X018572-I Notice Sodium 2015-07-22
Notice - Source COLI17370 10/26/2017 10/30/2017 SRC-AC COLIFORM (TCR) Present Present Assessment X029953BR Notice Source 2017-10-30
Notice - Source COLI17370 10/26/2017 10/30/2017 SRC-AD COLIFORM (TCR) Present Present Assessment X029954BR Notice Source 2017-10-30
Notice - Source COLI18431 11/15/2018 11/19/2018 SRC-AC COLIFORM (TCR) Present Present Assessment X035103BR Notice Source 2018-11-19
Notice - Source COLI20440 10/15/2020 10/19/2020 10/15/2020 -4 SRC-AA COLIFORM (TCR) Present Present Assessment X043562BR Notice Source 2020-10-19
Notice - Source COLI20440 10/15/2020 10/19/2020 10/15/2020 -4 SRC-AC COLIFORM (TCR) Present Present Assessment X043564BR Notice Source 2020-10-19
Notice - Source COLI21589 10/27/2021 10/29/2021 09/12/2024 1049 SRC-AC COLIFORM (TCR) Present Present Assessment X048020B Notice Source 2021-10-29
Notice - Sodium IOC-86 09/04/2024 10/04/2024 10/07/2024 3 EP-A SODIUM 21.4 20 MG/L 24090176-01B-I Notice Sodium 2024-10-04


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