OHA Drinking Water Services
PWS ID: 00898 ---- TIMBER WATER ASSOCIATION
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
22-010862-0001-I 09/12/2022 10/24/2022 NITRATE EP FOR NEHALEM RIVER EP-A0.0672
210135840001-I 11/17/2021 11/22/2021 NITRATE EP FOR NEHALEM RIVER EP-A0.363
200099440001-I 09/16/2020 09/22/2020 NITRATE EP FOR NEHALEM RIVER EP-A0.079
190071880001-I 06/19/2019 06/27/2019 NITRATE EP FOR NEHALEM RIVER EP-A0.087
180095550001-I 10/24/2018 11/06/2018 NITRATE EP FOR NEHALEM RIVER EP-AND
70823311-I 08/23/2017 08/30/2017 NITRATE EP FOR NEHALEM RIVER EP-A0.083
60613431-I 06/13/2016 07/01/2016 NITRATE EP FOR NEHALEM RIVER EP-A0.053
50820021-I 08/19/2015 09/08/2015 NITRATE EP FOR NEHALEM RIVER EP-A0.108
41125051-I 11/24/2014 12/03/2014 NITRATE EP FOR NEHALEM RIVER EP-A0.616
31003031-I 10/03/2013 10/25/2013 NITRATE EP FOR NEHALEM RIVER EP-A0.616
20904031-I 09/04/2012 09/18/2012 NITRATE EP FOR NEHALEM RIVER EP-A0.118
10811131-I 08/09/2011 09/06/2011 NITRATE EP FOR NEHALEM RIVER EP-A0.092
1014121-I 10/13/2010 11/02/2010 NITRATE EP FOR NEHALEM RIVER EP-A0.12
1021012-I 07/29/2010 08/30/2010 NITRATE EP FOR NEHALEM RIVER EP-AND
91120221-I 11/19/2009 12/04/2009 NITRATE EP FOR NEHALEM RIVER EP-A0.49
9071654 07/16/2009 08/07/2009 NITRATE EP FOR NEHALEM RIVER EP-A0.26
A81031Z1-I 10/31/2008 11/12/2008 NITRATE EP FOR NEHALEM RIVER EP-A0.06
A71218BK1 12/18/2007 01/08/2008 NITRATE EP FOR NEHALEM RIVER EP-A0.04
A50104BM-1I 01/03/2005 04/26/2005 NITRATE EP FOR NEHALEM RIVER EP-A0.2
A31024H-1 10/23/2003 11/05/2003 NITRATE EP FOR NEHALEM RIVER EP-A0.4
A21024BH-1 10/24/2002 11/07/2002 NITRATE EP FOR NEHALEM RIVER EP-A0.06
A61227AL-1 12/27/2000 01/09/2007 NITRATE EP FOR NEHALEM RIVER EP-A0.1
 

Archived Nitrate Samples
Sample ID Sample
Date
Date
Received
Analyte Name Source Name Source
ID
Result
A10921AF*A 09/18/2001 11/26/2001 Nitrate ENTRY POINT - WTP AND
A01226BP*A 12/26/2000 01/03/2001 Nitrate ENTRY POINT - WTP A0.46
991222CO*A 12/22/1999 01/10/2000 Nitrate ENTRY POINT - WTP AND
981118DCAA 11/19/1998 01/15/1999 Nitrate NEHALEM RIVER INFILTRATION GAL AA0.62
9710-110-1 10/15/1997 11/24/1997 Nitrate ENTRY POINT - WTP A0.34
N1550 03/19/1997 03/31/1997 Nitrate ENTRY POINT - WTP A0.15
9611-109-1 11/20/1996 01/02/1997 Nitrate ENTRY POINT - WTP A0.39
9609-185-6 09/18/1996 11/04/1996 Nitrate ENTRY POINT - WTP A0.14
25423 11/30/1995 12/13/1995 Nitrate ENTRY POINT - WTP A0.8
17922 09/23/1993 05/11/1994 Nitrate NEHALEM RIVER INFILTRATION GAL AA0.25
-1937732 10/08/1992 03/17/1993 Nitrate NEHALEM RIVER INFILTRATION GAL A0.85
-1937733 09/26/1991 11/07/1991 Nitrate NEHALEM RIVER INFILTRATION GAL A0.5
-1937734 10/08/1990 01/23/1991 Nitrate NEHALEM RIVER INFILTRATION GAL A0.13
-1937735 10/15/1989 12/20/1989 Nitrate NEHALEM RIVER INFILTRATION GAL A0.17
-1937736 09/02/1988 01/25/1989 Nitrate NEHALEM RIVER INFILTRATION GAL A0.13
-1937737 05/13/1987 06/15/1987 Nitrate NEHALEM RIVER INFILTRATION GAL A0.11
-1937738 11/26/1985 11/26/1985 Nitrate NEHALEM RIVER INFILTRATION GAL A0.26
 




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Coliform Summary :: Coliform Results :: Sampling Schedule for Coliform :: Groundwater/GWUDI Source Details :: Plan Review :: Annual Fee
Chemical Group Summary :: Latest Chemical Results :: Entry Point Detects :: Single Analyte Results 
Chemical Schedule Summary :: Chemical Schedule Details
Lead & Copper :: Corrosion Control (LCR) :: Nitrate :: Arsenic :: Radionuclides :: GWR 4-Log :: LT2 :: Cyanotoxins :: PFAS
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 3996