OHA Drinking Water Services
PWS ID: 00372 ---- HERMISTON, CITY OF

Alerts indicate water quality tests with analytical results greater than the detection limit or one-half of the maximum allowable contaminant level which may require some follow-up actions by Drinking Water Services. See the Contacts link for reports on follow-up actions. Alerts are not water quality violations. Violations for this water system can be found here.

Alert Type Abbreviations:  CHEM = Chemical, COLI = Coliform, SOURCE = Coliform source sample*, SODIUM = Sodium*
*Non-alert (water quality notice)
Results:  56 alerts found for this water system.Show response time
Water Quality Alerts
Alert ID Sample
Date		 Alert
Date		 Source
ID		 Source Name Alert
Type		 Contaminant Result Alert
Level		 MCL Contact
Report
CHEM9324 05/04/2021 05/20/2021 EP-C EP FOR WELL #5 CHEM NITRATE (AS N) 5.255 10
COLI20963 05/12/2021 05/14/2021 DIST-A 2320 Kelli (9) Fence Tite Rite COLI COLIFORM, TOTAL (TCR) Present Present Present05/13/2021
COLI20919 04/19/2021 04/20/2021 SRC-DA Well #6 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
CHEM9001 06/02/2020 07/16/2020 EP-B EP FOR WELL #4 SODIUM* SODIUM 88.920
CHEM9001 06/02/2020 07/16/2020 EP-D EP FOR WELL #6 SODIUM* SODIUM 5320
CHEM9001 06/02/2020 07/16/2020 WTP-C TP FOR WELL #5 SODIUM* SODIUM 47.420
CHEM8948 05/13/2020 05/26/2020 EP-C EP FOR WELL #5 CHEM NITRATE (AS N) 6.135 1005/26/2020
COLI19809 04/14/2020 04/16/2020 SRC-DA well #6 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
CHEM8352 06/03/2019 06/13/2019 DIST-A DISTRIBUTION SYSTEM CHEM TOTAL HALOACETIC ACIDS (HAA5) 0.07270.06 0.0606/13/2019
CHEM8344 05/14/2019 05/30/2019 EP-C EP FOR WELL #5 CHEM NITRATE (AS N) 6.315 1005/30/2019
COLI18843 05/14/2019 05/16/2019 SRC-DA well #6 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
CHEM8003 06/04/2018 07/18/2018 DIST-A DISTRIBUTION SYSTEM CHEM TOTAL HALOACETIC ACIDS (HAA5) 0.06990.06 0.0607/19/2018
CHEM7938 05/08/2018 05/23/2018 EP-C EP FOR WELL #5 CHEM NITRATE (AS N) 5.115 10
CHEM7587 05/09/2017 05/24/2017 EP-C EP FOR WELL #5 CHEM NITRATE (AS N) 5.975 1005/24/2017
CHEM7568 04/10/2017 05/11/2017 EP-B EP FOR WELL #4 CHEM XYLENES 0.000660.0005 1005/12/2017
COLI16247 11/09/2016 11/10/2016 DIST-A safety center COLI COLIFORM, TOTAL (TCR) Present Present Present11/10/2016
COLI14911 11/04/2015 11/05/2015 DIST-A 195 nw 13th st wside lift stn COLI COLIFORM, E. COLI Present Present Present11/05/2015
COLI14911 11/04/2015 11/05/2015 DIST-A 195 nw 13th st wside lift stn COLI COLIFORM, TOTAL (TCR) Present Present Present11/05/2015
CHEM6714 05/13/2015 06/01/2015 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 5.475 10
COLI14078 04/14/2015 04/15/2015 SRC-CA well #5 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
CHEM6297 05/07/2014 05/23/2014 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 5.345 10
CHEM5962 08/08/2013 09/25/2013 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 6.65 1008/26/2013
COLI11597 04/10/2013 04/11/2013 SRC-CA well #5 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
COLI11597 04/10/2013 04/11/2013 SRC-DA well #6 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
CHEM5481 08/09/2012 08/23/2012 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 6.45 10
COLI10680 07/10/2012 07/12/2012 DIST-A 2320 kelli blvd fence tite rit COLI COLIFORM, TOTAL (TCR) Present Present Present07/12/2012
CHEM4982 07/07/2011 08/03/2011 EP-D EP FOR WELL #6 RESERVOIR CHEM DI(2-ETHYLHEXYL) - PHTHALATE 0.001410.0006 0.006
CHEM4924 06/07/2011 06/28/2011 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE+NITRITE (AS N) 6.335 10
CHEM4920 06/07/2011 06/27/2011 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 6.335 1006/21/2011
CHEM4920 06/07/2011 06/27/2011 EP-B EP FOR WELL #4 (WELLFIELD) SODIUM* SODIUM 69.420 06/21/2011
CHEM4920 06/07/2011 06/27/2011 EP-C EP FOR WELL #5 CT TANK SODIUM* SODIUM 41.520 06/21/2011
CHEM4920 06/07/2011 06/27/2011 EP-D EP FOR WELL #6 RESERVOIR SODIUM* SODIUM 50.920 06/21/2011
COLI8760 12/13/2010 12/15/2010 SRC-DA Well #6 SOURCE* COLIFORM, TOTAL (TCR) Present Present Present
CHEM4342 08/05/2010 09/03/2010 DIST-A Distribution System CHEM TOTAL HALOACETIC ACIDS (HAA5) 0.06430.06 0.06
CHEM4301 08/04/2010 08/16/2010 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 6.85 1008/16/2010
05/10/2007 10/02/2009 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 55 10
CHEM3669 08/11/2009 09/10/2009 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 6.35 1009/11/2009
CHEM3083 08/06/2008 08/29/2008 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 5.855 10
CHEM2987 04/10/2008 06/16/2008 EP-A EP FOR WELLS #2 AND #4 WELLFIELD SODIUM* SODIUM 75.520
CHEM2987 04/10/2008 06/16/2008 EP-C EP FOR WELL #5 CT TANK SODIUM* SODIUM 51.820
CHEM2987 04/10/2008 06/16/2008 EP-D EP FOR WELL #6 RESERVOIR SODIUM* SODIUM 5520
CHEM2161 08/08/2006 09/12/2006 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 65 10
CHEM2161 08/08/2006 09/12/2006 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 65 10
CHEM2158 08/08/2006 09/08/2006 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 65 10
CHEM2158 08/08/2006 09/08/2006 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 65 10
CHEM1708 05/03/2005 08/16/2005 EP-C EP FOR WELL #5 CT TANK SODIUM* SODIUM 3920
CHEM1680 05/03/2005 07/29/2005 EP-D EP FOR WELL #6 RESERVOIR SODIUM* SODIUM 6020
COLI2196 07/12/2005 07/18/2005 DIST-A Distribution System COLI COLIFORM, TOTAL (TCR) Present Present Present
CHEM1645 05/03/2005 07/01/2005 EP-B EP FOR WELLS #2 AND #4 WELLFIELD SODIUM* SODIUM 8520
CHEM1159 05/10/2004 03/17/2005 EP-C EP FOR WELL #5 CT TANK CHEM GROSS ALPHA, EXCLUDING RA & U 5.8515 15
CHEM867 08/10/2004 09/24/2004 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 65 10
CHEM583 04/17/2003 12/10/2003 EP-F EP FOR COLUMBIA RIVER WTP CHEM RADIUM, COMBINED (226, 228) 35 5
CHEM504 08/11/2003 09/10/2003 EP-C EP FOR WELL #5 CT TANK CHEM NITRATE (AS N) 65 10
CHEM105 06/06/2002 10/02/2002 EP-A EP FOR WELL #2 SODIUM* SODIUM 8020
CHEM105 06/06/2002 10/02/2002 EP-D EP FOR WELL #6 RESERVOIR SODIUM* SODIUM 6020
CHEM80 08/12/2002 09/12/2002 EP-B EP FOR WELL #4 RESERVOIR CHEM NITRATE (AS N) 5.65 10
*Non-alert (water quality notice)


Archived Alerts (SWS database)
Date Source Chemical Results mg/l MCL mg/l
08/26/1997A--EP FOR WELL #2Bromomethane0.016
05/08/2001Coliform
07/13/1999Coliform
08/18/1998Coliform
03/21/1995Coliform
07/26/1994Coliform
07/25/1994Coliform
08/20/1993Coliform
08/18/1993Coliform
08/17/1993Coliform
10/15/1996C--EP FOR WELL #5 CT TANKGross Alpha, Excl. Radon & U5 15
08/29/1996C--EP FOR WELL #5 CT TANKGross Alpha, Excl. Radon & U5 15
06/16/1999C--EP FOR WELL #5 CT TANKNitrate5.6 10
11/18/1998C--EP FOR WELL #5 CT TANKNitrate5 10
08/18/1998C--EP FOR WELL #5 CT TANKNitrate6.7 10
06/23/1998B--EP FOR WELL #4 RESERVOIRNitrate5.4 10
06/23/1998CA--WELL #5 - HARPER RDNitrate5.4 10
05/21/1997C--EP FOR WELL #5 CT TANKNitrate5.2 10
02/11/1997C--EP FOR WELL #5 CT TANKNitrate5.1 10
10/27/1993C--EP FOR WELL #5 CT TANKNitrate7 10
10/27/1993C--EP FOR WELL #5 CT TANKNitrate-Nitrite7 10
06/16/1999B--EP FOR WELL #4 RESERVOIRSodium77
06/16/1999C--EP FOR WELL #5 CT TANKSodium38
06/16/1999D--EP FOR WELL #6 RESERVOIRSodium62
06/14/1999A--EP FOR WELL #2Sodium99
06/23/1998A--EP FOR WELL #2Sodium87
08/26/1997A--EP FOR WELL #2Sodium86
06/26/1996C--EP FOR WELL #5 CT TANKSodium37
06/26/1996D--EP FOR WELL #6 RESERVOIRSodium60
05/07/1996B--EP FOR WELL #4 RESERVOIRSodium73
07/27/1994D--EP FOR WELL #6 RESERVOIRSodium61
07/13/1994B--EP FOR WELL #4 RESERVOIRSodium79
07/13/1994C--EP FOR WELL #5 CT TANKSodium37
10/27/1993BA--WELL #4 - 4TH ST. CITY SH.Sodium79
10/27/1993C--EP FOR WELL #5 CT TANKSodium38
10/27/1993D--EP FOR WELL #6 RESERVOIRSodium59
06/17/1993CA--WELL #5 - HARPER RDSodium38
06/17/1993DA--WELL #6 - HWY 395Sodium62
06/16/1993EA--WELL #3 - 3RD ST.Sodium88
06/15/1993BA--WELL #4 - 4TH ST. CITY SH.Sodium81
04/01/1993BA--WELL #4 - 4TH ST. CITY SH.Sodium66
03/18/1993D--EP FOR WELL #6 RESERVOIRSodium56
03/18/1993EA--WELL #3 - 3RD ST.Sodium83
03/16/1993CA--WELL #5 - HARPER RDSodium32
06/18/1992A--EP FOR WELL #2Sodium90
04/16/1992D--EP FOR WELL #6 RESERVOIRSodium45.5
10/27/1993C--EP FOR WELL #5 CT TANKTetrachloroethylene0 0.005


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