OHA Drinking Water Services
PWS ID: 94717 ---- COLUMBIA RIVER PUD
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
214302201-I 05/23/2022 06/01/2022 NITRATE EP for WELL EP-A0.956
121402401-I 08/02/2021 08/30/2021 NITRATE EP for WELL EP-A1.4
116703301-I 06/16/2021 06/30/2021 NITRATE EP for WELL EP-A1
112301901-I 05/03/2021 06/11/2021 NITRATE EP for WELL EP-A0.985
010609501-I 04/15/2020 04/20/2020 NITRATE EP for WELL EP-A1.08
923802301-I 08/26/2019 09/17/2019 NITRATE EP for WELL EP-A0.854
901608901-I 01/16/2019 01/29/2019 NITRATE EP for WELL EP-A0.49
811505401-I 04/25/2018 05/04/2018 NITRATE EP for WELL EP-A0.813
709508801-I 04/05/2017 04/07/2017 NITRATE EP for WELL EP-A0.665
602703701-I 01/27/2016 02/01/2016 NITRATE EP for WELL EP-A0.979
501404001-I 01/14/2015 01/21/2015 NITRATE EP for WELL EP-A0.969
427403301-I 10/01/2014 10/03/2014 NITRATE EP for WELL EP-A0.623
332901501-I 11/25/2013 12/04/2013 NITRATE EP for WELL EP-A0.691
324003401-I 08/28/2013 09/03/2013 NITRATE EP for WELL EP-A0.9
314800601-I 05/28/2013 05/30/2013 NITRATE EP for WELL EP-A0.8
307101001-I 03/12/2013 03/15/2013 NITRATE EP for WELL EP-A1
229802301-I 10/24/2012 10/29/2012 NITRATE EP for WELL EP-A0.9
224000901-I 08/27/2012 08/30/2012 NITRATE EP for WELL EP-A0.9
213001901-I 05/09/2012 05/22/2012 NITRATE EP for WELL EP-A1
206703401-I 03/07/2012 04/19/2012 NITRATE EP for WELL EP-A0.9
136203301-I 12/28/2011 01/09/2012 NITRATE EP for WELL EP-A1
118900901-I 07/08/2011 07/21/2011 NITRATE EP for WELL EP-A0.8
109100201-I 04/01/2011 04/27/2011 NITRATE EP for WELL EP-A1.7
103500601-I 02/04/2011 02/23/2011 NITRATE EP for WELL EP-AND
102001001-I 01/20/2011 06/07/2011 NITRATE WELL SRC-AA14
100300401-I 01/03/2011 01/07/2011 NITRATE EP for WELL EP-A0.6
028801101-I 10/15/2010 11/16/2010 NITRATE EP for WELL EP-A0.6
492999N-I 07/29/2010 08/30/2010 NITRATE EP for WELL EP-AND
1016713-I 06/16/2010 08/04/2010 NITRATE EP for WELL EP-AND
487061N-I 04/29/2010 05/18/2010 NITRATE EP for WELL EP-AND
481312N-I 01/22/2010 02/17/2010 NITRATE EP for WELL EP-A0.8
476490N-I 10/29/2009 11/09/2009 NITRATE EP for WELL EP-A0.9
470934N-I 07/30/2009 09/10/2009 NITRATE EP for WELL EP-A0.9
0918708-I 07/06/2009 07/10/2009 NITRATE EP for WELL EP-A14
0917022-I 06/19/2009 06/25/2009 NITRATE EP for WELL EP-A0.9
468242N-I 06/11/2009 06/19/2009 NITRATE EP for WELL EP-A12
460286N-I 01/23/2009 02/03/2009 NITRATE EP for WELL EP-AND
454998N-I 10/17/2008 11/05/2008 NITRATE EP for WELL EP-AND
450139N-I 07/31/2008 08/21/2008 NITRATE EP for WELL EP-AND
446588N-I 05/29/2008 06/19/2008 NITRATE EP for WELL EP-A0.5
440278N 01/31/2008 02/21/2008 NITRATE EP for WELL EP-A0.6
438520N 12/21/2007 01/03/2008 NITRATE EP for WELL EP-AND
438520-I 12/21/2007 01/10/2008 NITRATE EP for WELL EP-AND
432696N 08/30/2007 09/11/2007 NITRATE EP for WELL EP-A0.6
427764N 05/31/2007 06/20/2007 NITRATE EP for WELL EP-A1
422135N 02/08/2007 02/23/2007 NITRATE EP for WELL EP-A1.2
419867-I 12/21/2006 01/05/2007 NITRATE EP for WELL EP-A2.1
412207-I 07/31/2006 08/04/2006 NITRATE EP for WELL EP-A0.6
407233-I 04/27/2006 05/02/2006 NITRATE EP for WELL EP-A0.6
402024-I 01/19/2006 02/01/2006 NITRATE EP for WELL EP-A0.7
400331-I 12/15/2005 01/04/2006 NITRATE EP for WELL EP-A0.8
392247-I 07/22/2005 07/26/2005 NITRATE EP for WELL EP-A0.6
05181/05N 06/30/2005 07/11/2005 NITRATE EP for WELL EP-AND
387032-I 04/25/2005 05/02/2005 NITRATE EP for WELL EP-A0.6
382404-I 01/31/2005 02/11/2005 NITRATE EP for WELL EP-AND
04351/08-I 12/16/2004 01/04/2005 NITRATE EP for WELL EP-AND
04337/18-I 12/02/2004 12/06/2004 NITRATE EP for WELL EP-AND
04337/19-I 12/02/2004 12/06/2004 NITRATE EP for WELL EP-A11
379104-I 11/29/2004 12/06/2004 NITRATE EP for WELL EP-A20
04233/09 08/20/2004 08/30/2004 NITRATE EP for WELL EP-AND
04233/09N 08/20/2004 09/16/2004 NITRATE EP for WELL EP-AND
372526-I 07/29/2004 08/13/2004 NITRATE EP for WELL EP-A13.6
367187-I 04/29/2004 05/04/2004 NITRATE EP for WELL EP-A5.9
363809-I 02/26/2004 03/08/2004 NITRATE EP for WELL EP-A4.7
357611-I 10/23/2003 11/05/2003 NITRATE EP for WELL EP-A0.5
352707 07/31/2003 08/11/2003 NITRATE EP for WELL EP-A2.6
349032 05/22/2003 05/29/2003 NITRATE EP for WELL EP-A1.6
342620 01/23/2003 01/28/2003 NITRATE EP for WELL EP-A1.9
334416 10/10/2002 10/21/2002 NITRATE EP for WELL EP-A1.3
334906 08/29/2002 09/05/2002 NITRATE EP for WELL EP-AND
327749 04/18/2002 05/02/2002 NITRATE EP for WELL EP-AND
324572 02/14/2002 02/20/2002 NITRATE EP for WELL EP-AND
 

Archived Nitrate Samples
Sample ID Sample
Date
Date
Received
Analyte Name Source Name Source
ID
Result
319047 10/18/2001 10/25/2001 Nitrate EP for WELL A0.6
314173 07/19/2001 07/23/2001 Nitrate EP for WELL AND
01151114 05/31/2001 07/17/2001 Nitrate WELL AA20
308956 04/12/2001 04/26/2001 Nitrate EP for WELL AND
304569 01/11/2001 01/22/2001 Nitrate EP for WELL AND
300260 10/12/2000 10/23/2000 Nitrate EP for WELL AND
295781 07/20/2000 08/03/2000 Nitrate EP for WELL AND
290434 04/06/2000 04/17/2000 Nitrate EP for WELL AND
286556 01/13/2000 01/26/2000 Nitrate EP for WELL AND
350/15 12/15/1999 06/05/2000 Nitrate EP for WELL AND
341/06 12/06/1999 12/18/2000 Nitrate EP for WELL A2
34106 12/06/1999 06/05/2000 Nitrate EP for WELL A2
282894 10/28/1999 11/03/1999 Nitrate EP for WELL A0.6
278648 08/12/1999 08/19/1999 Nitrate WELL AA6.8
272908 04/22/1999 05/05/1999 Nitrate EP for WELL AND
272907 04/22/1999 05/05/1999 Nitrate WELL AA7.8
268544 01/21/1999 01/29/1999 Nitrate EP for WELL A0.8
268543 01/21/1999 01/29/1999 Nitrate WELL AA13.3
362/17 12/28/1998 02/10/1999 Nitrate EP for WELL A0.14
256413 05/14/1998 05/26/1998 Nitrate EP for WELL A1.3
256412 05/14/1998 05/26/1998 Nitrate WELL AA10
252590 02/19/1998 02/25/1998 Nitrate EP for WELL A0.9
252589 02/19/1998 02/25/1998 Nitrate WELL AA11.6
248289 11/13/1997 11/19/1997 Nitrate EP for WELL A0.58
248288 11/13/1997 11/19/1997 Nitrate WELL AA12
282893 10/28/1997 11/03/1999 Nitrate WELL AA8.6
243968 08/14/1997 09/02/1997 Nitrate EP for WELL A0.8
243967 08/14/1997 09/02/1997 Nitrate WELL AA10.7
239810 05/15/1997 05/22/1997 Nitrate WELL AA6.4
235771 02/13/1997 02/24/1997 Nitrate EP for WELL AND
235770 02/13/1997 02/24/1997 Nitrate WELL AA10
232185 11/21/1996 12/04/1996 Nitrate EP for WELL AND
232184 11/21/1996 12/04/1996 Nitrate WELL AA12.8
227901 08/22/1996 09/03/1996 Nitrate EP for WELL AND
227902 08/22/1996 09/03/1996 Nitrate WELL AA10
223610 05/23/1996 08/13/1996 Nitrate EP for WELL A0.33
223611 05/23/1996 08/13/1996 Nitrate WELL AA14
218339 02/15/1996 03/04/1996 Nitrate EP for WELL A20.4
218340 02/15/1996 03/04/1996 Nitrate EP for WELL A0.55
210289 09/14/1995 09/28/1995 Nitrate EP for WELL A0.6
210290 09/14/1995 09/28/1995 Nitrate WELL AA16.2
23857-2 06/01/1995 06/20/1995 Nitrate EP for WELL A0.37
23858-1 06/01/1995 06/20/1995 Nitrate WELL AA16.6
23001 03/02/1995 03/16/1995 Nitrate EP for WELL A1.2
23000 03/02/1995 03/16/1995 Nitrate WELL AA22
22311 12/15/1994 07/10/1995 Nitrate EP for WELL A0.88
22310 12/15/1994 07/10/1995 Nitrate WELL AA29
189713 08/04/1994 08/17/1994 Nitrate STANDARD ENTRY POINT A0.84
189714 08/04/1994 08/17/1994 Nitrate WELL - WELL AA25
185052 05/05/1994 07/08/1994 Nitrate STANDARD ENTRY POINT A1
185051 05/05/1994 07/08/1994 Nitrate WELL - WELL AA30
176100 11/04/1993 12/01/1993 Nitrate STANDARD ENTRY POINT A1.4
176099 11/04/1993 12/01/1993 Nitrate WELL - WELL AA27
17926 09/23/1993 03/03/1994 Nitrate WELL - WELL AA23
172527 08/26/1993 09/23/1993 Nitrate STANDARD ENTRY POINT A0.4
172526 08/26/1993 09/23/1993 Nitrate WELL - WELL AA19
-1871554 05/06/1993 05/13/1993 Nitrate WELL A1.2
162663 02/11/1993 02/25/1994 Nitrate STANDARD ENTRY POINT A1.3
162664 02/11/1993 02/25/1994 Nitrate WELL - WELL AA28
-1871555 11/05/1992 12/28/1992 Nitrate WELL A0.36
-1871556 04/04/1991 04/19/1991 Nitrate WELL A2.8
120262 10/04/1990 10/10/1990 Nitrate EP for WELL A0.5
120263 10/04/1990 10/10/1990 Nitrate WELL AA22.5
119802 09/06/1990 10/10/1990 Nitrate EP for WELL A2.1
119803 09/06/1990 10/10/1990 Nitrate EP for WELL A23
-1871557 07/13/1990 04/19/1991 Nitrate WELL A1.1
-1871558 05/02/1990 04/23/1991 Nitrate WELL A27
 




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