OHA Drinking Water Services
OR41
PWS ID: 00067 ---- AURORA, CITY OF
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 04/28/1992 05/26/1992 A SODIUM 39.2 20 MG/L -1996265 Alert Chem IOC0 1992-05-26
IOC ARCHIVE 04/28/1992 05/26/1992 B SODIUM 40.1 20 MG/L -1996243 Alert Chem IOC0 1992-05-26
IOC ARCHIVE 03/24/1993 04/20/1994 AA SODIUM 44.4 20 MG/L 930324-049 Alert Chem IOC0 1994-04-20
IOC ARCHIVE 03/24/1993 04/20/1994 BA SODIUM 47.9 20 MG/L 930324-048 Alert Chem IOC0 1994-04-20
TCR ARCHIVE 11/01/1994 12/08/1994 COLIFORM (TCR) Present Present Routine 941101-053 Alert TCR0 1994-12-08
TCR ARCHIVE 11/10/1994 12/08/1994 COLIFORM (TCR) Present Present Repeat 941110-010 Alert TCR0 1994-12-08
TCR ARCHIVE 02/06/1996 03/08/1996 COLIFORM (TCR) Present Present Routine 960206057 Alert TCR0 1996-03-08
IOC ARCHIVE 08/27/1996 11/27/1996 AA SODIUM 42.1 20 MG/L 960827-054 Alert Chem IOC0 1996-11-27
TCR ARCHIVE 10/07/1997 11/10/1997 COLIFORM (TCR) Present Present Routine 971007047 Alert TCR0 1997-11-10
IOC ARCHIVE 10/20/1999 01/01/2000 A SODIUM 28.6 20 MG/L 991020-042 Alert Chem IOC0 2000-01-01
TCR COLI744 10/07/2003 10/30/2003 DIST-A COLIFORM (TCR) Present Present Routine 20031007054 Alert TCR0 2003-10-30
ARS CHEM3860 06/16/2005 12/10/2009 12/11/2009 1 SRC-AC ARSENIC 0.0152 0.01 MG/L P5F074001-I Alert Chem CMCL ARS0 2009-12-10
Notice - Sodium CHEM3860 06/16/2005 12/10/2009 12/11/2009 1 SRC-AC SODIUM 45.9 20 MG/L P5F074001-I Notice Sodium 2009-12-10
VOC CHEM3860 06/16/2005 12/10/2009 12/11/2009 1 SRC-AC TOLUENE 0.00052 1 MG/L P5F074001-V Alert Chem VOC0 2009-12-10
ARS CHEM2177 09/07/2006 09/27/2006 EP-A ARSENIC 0.014 0.01 MG/L 20060907010 Alert Chem CMCL ARS0 2006-09-27
ARS CHEM2981 03/27/2008 06/12/2008 06/12/2008 0 EP-A ARSENIC 0.014 0.01 MG/L L33926702-A Alert Chem CMCL ARS0 2008-06-12
ARS CHEM3019 03/27/2008 07/15/2008 EP-A ARSENIC 0.015 0.01 MG/L L33926703-A Alert Chem CMCL ARS0 2008-07-15
ARS CHEM3054 06/25/2008 08/04/2008 07/15/2008 -20 EP-A ARSENIC 0.01 0.01 MG/L K0801856002-I Alert Chem CMCL ARS0 2008-08-04
TCR COLI5838 11/04/2008 11/06/2008 11/06/2008 0 DIST-A E. COLI Present 0 Routine 20081104028 Alert TCR0 2008-11-06
TCR COLI5838 11/04/2008 11/06/2008 11/06/2008 0 DIST-A COLIFORM (TCR) Present Present Routine 20081104028 Alert TCR0 2008-11-06
LCR CHEM3788 09/15/2009 10/19/2009 10/19/2009 0 DIST-A LEAD SUMMARY 0.044 0.015 MG/L Alert Chem LCR0 2009-10-19
TCR COLI9611 09/06/2011 09/12/2011 09/13/2011 1 DIST-A COLIFORM (TCR) Present Present Routine 20110906060 Alert TCR0 2011-09-12
Notice - Sodium CHEM5203 12/07/2011 12/29/2011 EP-A SODIUM 30.9 20 MG/L 11208341-I Notice Sodium 2011-12-29
ARS CHEM7784 11/16/2017 11/27/2017 11/28/2017 1 EP-A ARSENIC 0.0112 0.01 MG/L 20171116021-I Alert Chem CMCL ARS0 2017-11-27
Notice - Sodium CHEM9128 09/16/2020 10/27/2020 EP-A SODIUM 36.6 20 MG/L 20200916015-I Notice Sodium 2020-10-27
ARS CHEM9487 09/28/2021 10/06/2021 EP-A ARSENIC 0.0125 0.01 MG/L 20210928015-I Alert Chem CMCL ARS0 2021-10-06
ARS CHEM9497 09/28/2021 10/12/2021 SRC-AA ARSENIC 0.0112 0.01 MG/L 20210928014-I Alert Chem CMCL ARS0 2021-10-12



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