OHA Drinking Water Services
PWS ID: 00932 ---- WARRENTON, 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
3039064-01-I 02/08/2023 02/13/2023 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-AND
203307901-I 02/02/2022 02/11/2022 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.3
104102701-I 02/10/2021 03/11/2021 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.418
022506501-I 08/12/2020 08/18/2020 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.296
004306201-I 02/12/2020 02/20/2020 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.525
904405601-I 02/13/2019 02/26/2019 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.385
803811601-I 02/07/2018 02/09/2018 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.336
704608401-I 02/15/2017 02/22/2017 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.261
604104601-I 02/10/2016 02/11/2016 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-AND
534301801-I 12/09/2015 12/11/2015 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.446
425304301-I 09/10/2014 09/16/2014 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.182
317702301-I 06/26/2013 06/28/2013 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-AND
229802501-I 10/24/2012 10/29/2012 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-AND
122903301-I 08/17/2011 09/23/2011 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.6
1015442-I 06/03/2010 06/21/2010 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.8
0920424 07/23/2009 08/10/2009 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-AND
0707428 03/15/2007 04/09/2007 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.7
0605432 02/23/2006 03/07/2007 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.9
05048/16 02/17/2005 04/05/2005 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.7
04358/15-I 12/23/2004 03/10/2005 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.9
03016/13 01/16/2003 02/24/2004 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-A0.8
02290/13 10/17/2002 01/21/2003 NITRATE LITTLE SO.FORK-LEWIS/CLARK RIV SRC-ACND
02227/14 08/15/2002 01/21/2003 NITRATE LEWIS & CLARK RIVER SRC-AAND
02178/12I 06/27/2002 01/21/2003 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-AND
02052/27 02/21/2002 01/21/2003 NITRATE EP FOR WTP (LEWIS & CLARK RIVER/CREEK) EP-AND
 

Archived Nitrate Samples
Sample ID Sample
Date		 Date
Received		 Analyte Name Source Name Source
ID		 Result
0131230 11/08/2001 01/31/2002 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
0117912 06/28/2001 08/08/2001 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
0112320 05/03/2001 01/31/2002 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
01011119 01/11/2001 01/31/2002 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) A0.5
00293/24 10/19/2000 04/18/2001 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) A0.7
00272/38 09/28/2000 04/18/2001 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
00209/43 07/27/2000 04/18/2001 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
00069/20 03/09/2000 04/18/2001 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) A0.6
301/21 10/28/1999 11/16/1999 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
189/16 07/08/1999 01/31/2000 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
168/24 06/17/1999 07/23/1999 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
098/16 04/08/1999 04/12/1999 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
021/10 01/21/1999 03/08/1999 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
344/36 12/10/1998 03/10/1999 Nitrate LITTLE SO.FORK-LEWIS/CLARK RIV ACND
187/02 07/02/1998 09/24/1998 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
170/14 06/19/1997 09/02/1997 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
27978 11/14/1996 01/08/1997 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) AND
94056-3 06/22/1995 08/18/1995 Nitrate LEWIS & CLARK RIVER AA0.3
24056-4 06/22/1995 08/18/1995 Nitrate BIG SOUTH FORK-LEWIS/CLARK RIV AB0.3
24056-2 06/22/1995 08/21/1995 Nitrate LITTLE SO.FORK-LEWIS/CLARK RIV AC0.3
24056-1 06/22/1995 08/21/1995 Nitrate CAMP "C" CREEK ADND
20870-1 07/21/1994 09/08/1994 Nitrate LEWIS & CLARK RIVER AA0.8
20870-2 07/21/1994 09/08/1994 Nitrate BIG SOUTH FORK-LEWIS/CLARK RIV AB0.6
20870-4 07/21/1994 09/08/1994 Nitrate LITTLE SO.FORK-LEWIS/CLARK RIV AC0.9
20870-3 07/21/1994 09/08/1994 Nitrate CAMP "C" CREEK AD0.6
16259 04/01/1993 10/21/1993 Nitrate EP FOR WTP (LEWIS & CLARK RIVER/CREEK) A0.35
-1934818 09/03/1992 09/17/1992 Nitrate LEWIS & CLARK RIVER AA0.22
-1934705 06/25/1992 07/24/1992 Nitrate BIG SOUTH FORK-LEWIS/CLARK RIV AB0.4
-1934663 06/25/1992 07/24/1992 Nitrate LITTLE SO.FORK-LEWIS/CLARK RIV AC0.4
-1934615 06/25/1992 07/24/1992 Nitrate CAMP "C" CREEK AD0.4
-1934706 06/26/1991 11/07/1991 Nitrate BIG SOUTH FORK-LEWIS/CLARK RIV ABND
-1934707 06/13/1991 07/23/1991 Nitrate BIG SOUTH FORK-LEWIS/CLARK RIV AB0.98
-1934664 06/13/1991 07/23/1991 Nitrate LITTLE SO.FORK-LEWIS/CLARK RIV AC0.72
-1934616 06/13/1991 07/23/1991 Nitrate CAMP "C" CREEK AD0.72
-1934708 08/20/1990 09/26/1990 Nitrate BIG SOUTH FORK-LEWIS/CLARK RIV AB0.6
-1934665 08/20/1990 09/26/1990 Nitrate LITTLE SO.FORK-LEWIS/CLARK RIV AC0.6
-1934617 08/20/1990 09/26/1990 Nitrate CAMP "C" CREEK AD1
-1934819 06/14/1990 10/11/1990 Nitrate LEWIS & CLARK RIVER AA0.5
-1934820 09/14/1989 10/23/1989 Nitrate LEWIS & CLARK RIVER AA0.18
-1934821 10/18/1988 11/15/1988 Nitrate LEWIS & CLARK RIVER AA0.29
-1934822 11/04/1987 12/04/1987 Nitrate LEWIS & CLARK RIVER AAND
-1934823 09/18/1986 10/09/1986 Nitrate LEWIS & CLARK RIVER AAND
-1934824 04/11/1985 04/11/1985 Nitrate LEWIS & CLARK RIVER AAND
 



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