OHA Drinking Water Services
PWS ID: 00236 ---- COTTAGE GROVE, CITY OF
Excel Spreadsheet

MCL = 10 mg/L; MCL exceedances are indicated with red text.
ND = Not detected at the minimum reporting level.
Nitrate Samples
Sample ID Sample
Date
Date
Received
Analyte Name Source Name Source
ID
Result
(mg/L)
Comments
104200901-I 04/19/2021 05/07/2021 NITRATE EP FOR WTP ROW RIVER EP-BND
004141001-I 04/13/2020 05/08/2020 NITRATE EP FOR WTP ROW RIVER EP-BND
908132601-I 08/12/2019 09/09/2019 NITRATE EP FOR WTP ROW RIVER EP-BND
808141101-I 08/13/2018 08/31/2018 NITRATE EP FOR WTP ROW RIVER EP-BND
708150101-I 08/14/2017 08/31/2017 NITRATE EP FOR WTP ROW RIVER EP-BND
608160601-I 08/15/2016 09/05/2016 NITRATE EP FOR WTP ROW RIVER EP-BND
508110201-I 08/10/2015 08/21/2015 NITRATE EP FOR WTP ROW RIVER EP-BND
408120301-I 08/11/2014 08/26/2014 NITRATE EP FOR WTP ROW RIVER EP-BND
308130301-I 08/12/2013 09/06/2013 NITRATE EP FOR WTP ROW RIVER EP-BND
208140602-I 08/13/2012 09/10/2012 NITRATE EP FOR WTP ROW RIVER EP-BND
108090701-I 08/08/2011 09/13/2011 NITRATE EP FOR WTP ROW RIVER EP-B0.15
008170102-I 08/16/2010 09/15/2010 NITRATE EP FOR WTP ROW RIVER EP-BND
908110201-I 08/10/2009 08/24/2009 NITRATE EP FOR WTP ROW RIVER EP-BND
808120206-I 08/11/2008 09/05/2008 NITRATE EP FOR WTP ROW RIVER EP-BND
708070802 08/06/2007 08/27/2007 NITRATE EP FOR WTP ROW RIVER EP-BND
6080816N 08/07/2006 08/30/2006 NITRATE EP FOR WTP ROW RIVER EP-BND
50719-3 07/18/2005 08/31/2005 NITRATE EP FOR WTP ROW RIVER EP-BND
40803-10 08/02/2004 08/27/2004 NITRATE EP FOR WTP ROW RIVER EP-BND
30825-10 08/24/2003 09/12/2003 NITRATE EP FOR WTP ROW RIVER EP-BND
20724-2I 07/23/2002 09/12/2002 NITRATE EP FOR WTP ROW RIVER EP-BND
 

Archived Nitrate Samples
Sample ID Sample
Date
Date
Received
Analyte Name Source Name Source
ID
Result
1071912 07/18/2001 08/16/2001 Nitrate WTP LAYNG CREEK/PRATHER CREEK AND
1071911 07/18/2001 08/16/2001 Nitrate WTP ROW RIVER BND
20071014 07/09/2000 08/10/2000 Nitrate WTP LAYNG CREEK/PRATHER CREEK AND
20071015 07/09/2000 08/10/2000 Nitrate WTP ROW RIVER BND
90129-2 01/28/1999 04/09/1999 Nitrate WTP LAYNG CREEK/PRATHER CREEK AND
90129-3 01/28/1999 03/30/1999 Nitrate WTP ROW RIVER BND
80122-1 01/21/1998 02/25/1998 Nitrate WTP LAYNG CREEK/PRATHER CREEK AND
80122-2 01/21/1998 02/25/1998 Nitrate WTP ROW RIVER B0.14
70117-6 01/16/1997 02/27/1997 Nitrate WTP ROW RIVER BND
70106-1 01/05/1997 02/27/1997 Nitrate WTP LAYNG CREEK/PRATHER CREEK AND
60126-1 01/25/1996 04/23/1996 Nitrate WTP ROW RIVER B0.17
51003-2 10/02/1995 10/23/1995 Nitrate WTP LAYNG CREEK/PRATHER CREEK AND
51003-1 10/02/1995 10/23/1995 Nitrate WTP ROW RIVER B0.25
50731-1 07/30/1995 08/23/1995 Nitrate WTP ROW RIVER BND
50724-2 07/23/1995 08/15/1995 Nitrate WTP LAYNG CREEK/PRATHER CREEK AND
50418-3 04/17/1995 07/18/1996 Nitrate WTP LAYNG CREEK/PRATHER CREEK AND
50418-4 04/17/1995 05/16/1995 Nitrate WTP ROW RIVER BND
50131-4 01/30/1995 03/14/1995 Nitrate WTP LAYNG CREEK/PRATHER CREEK AND
50131-3 01/30/1995 03/23/1995 Nitrate WTP ROW RIVER BND
40418-1 04/17/1994 05/09/1994 Nitrate STANDARD ENTRY POINT A0.14
40131-1 01/30/1994 03/11/1994 Nitrate STANDARD ENTRY POINT AND
30712-2 07/11/1993 11/22/1993 Nitrate WTP ROW RIVER B0.41
30706-9 07/05/1993 02/25/1994 Nitrate STANDARD ENTRY POINT AND
30405-15 04/04/1993 03/08/1994 Nitrate STANDARD ENTRY POINT AND
-1984858 01/31/1993 04/12/1993 Nitrate LAYNG CREEK/PRATHER CREEK AND
-1984859 06/14/1992 07/27/1992 Nitrate LAYNG CREEK/PRATHER CREEK A0.1
-1984659 06/14/1992 07/27/1992 Nitrate LAYING CREEK/PRATHER CREEK AA0.1
-1984586 06/14/1992 07/27/1992 Nitrate WTP ROW RIVER B0.2
-1984496 06/14/1992 07/27/1992 Nitrate WELL (SHALLOW) BB2.1
-1984860 06/16/1991 07/25/1991 Nitrate LAYNG CREEK/PRATHER CREEK A0.1
-1984660 06/16/1991 07/25/1991 Nitrate LAYING CREEK/PRATHER CREEK AA0.1
-1984587 06/16/1991 07/25/1991 Nitrate WTP ROW RIVER B0.1
-1984497 06/16/1991 07/25/1991 Nitrate WELL (SHALLOW) BB1.5
-1984861 06/10/1990 07/18/1990 Nitrate LAYNG CREEK/PRATHER CREEK AND
-1984661 06/10/1990 07/18/1990 Nitrate LAYING CREEK/PRATHER CREEK AAND
-1984588 06/10/1990 07/18/1990 Nitrate WTP ROW RIVER BND
-1984498 06/10/1990 07/18/1990 Nitrate WELL (SHALLOW) BB2.3
-1984862 06/04/1989 07/14/1989 Nitrate LAYNG CREEK/PRATHER CREEK AND
-1984662 06/04/1989 07/14/1989 Nitrate LAYING CREEK/PRATHER CREEK AAND
-1984589 06/04/1989 07/14/1989 Nitrate WTP ROW RIVER B0.26
-1984499 06/04/1989 07/20/1989 Nitrate WELL (SHALLOW) BBND
-1984590 06/07/1988 07/19/1988 Nitrate WTP ROW RIVER B0.18
-1984500 06/07/1988 07/19/1988 Nitrate WELL (SHALLOW) BB1.57
-1984863 06/06/1988 07/19/1988 Nitrate LAYNG CREEK/PRATHER CREEK A0.16
-1984663 06/06/1988 07/19/1988 Nitrate LAYING CREEK/PRATHER CREEK AA0.16
-1984864 07/22/1986 07/22/1986 Nitrate LAYNG CREEK/PRATHER CREEK AND
 




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