OHA Drinking Water Services
PWS ID: 00657 ---- PORTLAND WATER BUREAU
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
BC96020-I 04/04/2023 06/09/2023 NITRATE EP FOR BULL RUN EP-A0.021
BC85642-I 08/03/2022 09/09/2022 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.14
BC75262-I 04/05/2022 05/09/2022 NITRATE EP FOR BULL RUN EP-AND
BC60213-I 08/04/2021 09/09/2021 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.3
BC53668-I 04/06/2021 06/09/2021 NITRATE EP FOR BULL RUN EP-A0.014
BC41646-I 08/05/2020 10/09/2020 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.087
BC38533-I 05/12/2020 07/09/2020 NITRATE EP FOR BULL RUN EP-AND
BC25289-I 07/15/2019 09/10/2019 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.034
BC21049-I 04/02/2019 05/09/2019 NITRATE EP FOR BULL RUN EP-A0.018
BC04117-I 04/03/2018 05/09/2018 NITRATE EP FOR BULL RUN EP-A0.026
BC03118-I 03/15/2018 05/09/2018 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.45
BB87017-I 04/04/2017 06/08/2017 NITRATE EP FOR BULL RUN EP-A0.024
BB84114-I 02/22/2017 05/10/2017 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.14
BB71221-I 07/27/2016 10/07/2016 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.16
BB1496-I 04/05/2016 06/10/2016 NITRATE EP FOR BULL RUN EP-AND
BB52444-I 06/17/2015 08/10/2015 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.22
BB49816-I 03/31/2015 06/10/2015 NITRATE EP FOR BULL RUN EP-A0.025
BB42035-I 07/08/2014 09/10/2014 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.24
BB38036-I 04/08/2014 06/10/2014 NITRATE EP FOR BULL RUN EP-AND
BB30627-I 08/01/2013 10/10/2013 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.23
BB26971-I 04/09/2013 06/10/2013 NITRATE EP FOR BULL RUN EP-A0.018
BB16085-I 04/10/2012 06/08/2012 NITRATE EP FOR BULL RUN EP-A0.02
BB13243-I 01/22/2012 06/08/2012 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.11
K1103204001-I 04/12/2011 06/09/2011 NITRATE EP FOR BULL RUN EP-AND
BB1638-I 01/18/2011 04/08/2011 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.1
BA95984-I 08/11/2010 09/10/2010 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.09
BA91448-I 04/13/2010 06/10/2010 NITRATE EP FOR BULL RUN EP-A0.03
BA86215-I 10/06/2009 01/08/2010 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.18
BA84580-I 08/10/2009 01/08/2010 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.11
BA80231-I 03/31/2009 07/09/2009 NITRATE EP FOR BULL RUN EP-A0.03
BA76844 11/18/2008 01/09/2009 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.15
BA73841-I 08/19/2008 12/10/2008 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.2
BA68581-I 04/01/2008 07/09/2008 NITRATE EP FOR BULL RUN EP-A0.02
BA61844 08/06/2007 10/10/2007 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.22
BA58232 04/03/2007 07/10/2007 NITRATE EP FOR BULL RUN EP-A0.01
BA55335 12/05/2006 02/09/2007 NITRATE DISTRIBUTION SYSTEM DIST-A0.06
BA48173 04/04/2006 07/10/2006 NITRATE EP FOR BULL RUN EP-A0.02
BA44489I 11/15/2005 01/10/2006 NITRATE EP FOR BULL RUN EP-A0.06
BA36964I 04/05/2005 06/10/2005 NITRATE EP FOR BULL RUN EP-A0.04
BA31723 08/12/2004 09/03/2004 NITRATE BLUE LAKE AQ (BLA) - WELL #12 SRC-DA0.68
BA31311 07/29/2004 09/03/2004 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS1
BA31307 07/29/2004 09/03/2004 NITRATE TSA WELL #10 SRC-CC0.03
BA31276 07/28/2004 09/03/2004 NITRATE SAND&GRAVEL AQ (SGA) - WELL #1 SRC-BA0.02
BA31278 07/28/2004 09/03/2004 NITRATE BLUE LAKE AQ (BLA) - WELL #12 SRC-DA2
BA28336I 04/05/2004 05/13/2004 NITRATE EP FOR BULL RUN EP-A0.01
BA24983I 12/01/2003 02/09/2004 NITRATE EP FOR BULL RUN EP-A0.07
BA21368I 07/24/2003 10/06/2003 NITRATE EP FOR GROUNDWATER PUMP STATION EP-B GWPS0.07
BA21365I 07/24/2003 10/09/2003 NITRATE SAND&GRAVEL AQ (SGA) - WELL #1 SRC-BAND
BA21366I 07/24/2003 10/09/2003 NITRATE TSA WELL #10 SRC-CCND
BA21367I 07/24/2003 10/06/2003 NITRATE BLUE LAKE AQ (BLA) - WELL #12 SRC-DA2.8
BA15097I 12/04/2002 12/17/2003 NITRATE EP FOR BULL RUN EP-A0.05
BA15097I 12/04/2002 12/31/2002 NITRATE EP FOR BULL RUN EP-A0.05
1662I 04/09/2001 06/15/2001 NITRATE EP FOR BULL RUN EP-A0.03
 

Archived Nitrate Samples
Sample ID Sample
Date		 Date
Received		 Analyte Name Source Name Source
ID		 Result
BA01283 10/09/2001 02/15/2002 Nitrate SANDY RIVER MUDSTONE AQUIFER B0.6
2105020287 05/01/2001 07/23/2001 Nitrate WELL #36 BLND
6980 12/04/2000 02/12/2001 Nitrate EP FOR BULL RUN A0.04
2011220014 11/21/2000 07/23/2001 Nitrate WELL #37 BMND
2011100185 11/09/2000 07/23/2001 Nitrate WELL #35 BKND
1917 03/29/1999 01/10/2000 Nitrate EP FOR BULL RUN A0.03
1884 03/31/1998 07/09/1998 Nitrate EP FOR BULL RUN AND
1771 04/01/1997 02/12/1998 Nitrate EP FOR BULL RUN A0.02
5542 09/17/1996 10/10/1996 Nitrate EP FOR BULL RUN A0.09
5634 09/11/1996 11/12/1996 Nitrate WELL #12 DA0.48
5635 09/11/1996 11/12/1996 Nitrate WELL #13 DB0.18
5636 09/11/1996 11/12/1996 Nitrate WELL #19 DE0.16
1809 04/02/1996 06/10/1996 Nitrate EP FOR BULL RUN A0.03
7200 11/28/1995 01/17/1996 Nitrate EP FOR BULL RUN A0.03
5232 09/05/1995 10/12/1995 Nitrate EP FOR BULL RUN A0.03
2460 04/27/1995 03/21/1996 Nitrate PARKROSE WELLS F8.3
2453 04/26/1995 03/20/1996 Nitrate UPPER COLUMBIA AQUIFER END
2138 04/13/1995 03/20/1996 Nitrate SANDY RIVER MUDSTONE AQUIFER BND
2135 04/12/1995 03/20/1996 Nitrate TROUTDALE SANDSTONE AQUIFER CND
1595 04/04/1995 07/11/1995 Nitrate EP FOR BULL RUN AND
507 02/07/1995 03/28/1995 Nitrate EP FOR BULL RUN A0.03
7930 09/06/1994 10/19/1994 Nitrate EP FOR BULL RUN A0.02
730 05/17/1994 07/27/1994 Nitrate EP FOR BULL RUN A0.02
3838 02/22/1994 05/10/1994 Nitrate EP FOR BULL RUN A0.03
1703 11/02/1993 03/04/1994 Nitrate EP FOR BULL RUN A0.02
1058 07/27/1993 03/04/1994 Nitrate EP FOR BULL RUN A0.01
-1955736 04/07/1993 06/18/1993 Nitrate EP FOR BULL RUN A0.04
-1955737 04/06/1993 06/18/1993 Nitrate EP FOR BULL RUN A0.02
372 03/23/1993 11/24/1993 Nitrate EP FOR BULL RUN A0.03
-1955738 12/01/1992 03/19/1993 Nitrate EP FOR BULL RUN A0.08
-1955739 11/30/1992 03/19/1993 Nitrate EP FOR BULL RUN A0.04
-1955740 12/03/1991 02/06/1992 Nitrate EP FOR BULL RUN A0.11
-1955741 07/29/1991 12/16/1991 Nitrate EP FOR BULL RUN A0.08
-1955742 02/01/1991 03/18/1991 Nitrate EP FOR BULL RUN A0.08
-1955380 03/01/1990 01/07/1991 Nitrate BLUE LAKE AQUIFER DND
-1955743 12/04/1989 03/01/1990 Nitrate EP FOR BULL RUN A0.07
-1955744 04/11/1989 05/15/1989 Nitrate EP FOR BULL RUN A0.07
-1955535 10/12/1987 03/14/1988 Nitrate SANDY RIVER MUDSTONE AQUIFER BND
-1955442 10/12/1987 03/14/1988 Nitrate TROUTDALE SANDSTONE AQUIFER CND
-1955381 10/12/1987 03/14/1988 Nitrate BLUE LAKE AQUIFER D1.33
-1955745 06/09/1987 11/12/1987 Nitrate EP FOR BULL RUN A0.08
-1955747 08/05/1986 08/05/1986 Nitrate EP FOR BULL RUN AND
-1955746 08/05/1986 11/03/1986 Nitrate EP FOR BULL RUN A0.08
 



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