OHA Drinking Water Services
PWS ID: 00187 ---- CLACKAMAS RIVER WATER - CLACKAMAS
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
102602901-I 01/26/2021 11/17/2021 NITRATE EP FOR WTP EP-A0.278
002803001-I 01/28/2020 04/14/2020 NITRATE EP FOR WTP EP-A0.219
902201001-I 01/22/2019 03/05/2019 NITRATE EP FOR WTP EP-A0.289
802301101-I 01/23/2018 03/07/2018 NITRATE EP FOR WTP EP-A0.238
702405101-I 01/24/2017 03/10/2017 NITRATE EP FOR WTP EP-A0.361
602602201-I 01/26/2016 06/16/2016 NITRATE EP FOR WTP EP-AND
502702001-I 01/27/2015 07/13/2015 NITRATE EP FOR WTP EP-AND
402802501-I 01/28/2014 09/05/2014 NITRATE EP FOR WTP EP-A0.119
303601901-I 02/05/2013 04/11/2013 NITRATE EP FOR WTP EP-A0.7
203101901-I 01/31/2012 04/02/2012 NITRATE EP FOR WTP EP-AND
74987-I 01/25/2011 12/28/2011 NITRATE EP FOR WTP EP-A0.23
1002613-I 01/26/2010 10/20/2010 NITRATE EP FOR WTP EP-A0.8
0902712-I 01/27/2009 12/09/2009 NITRATE EP FOR WTP EP-A0.04
0802319-I 01/23/2008 04/04/2008 NITRATE EP FOR WTP EP-AND
0702357-I 01/23/2007 04/08/2008 NITRATE EP FOR WTP EP-A0.6
0602406 01/24/2006 10/23/2006 NITRATE EP FOR WTP EP-A0.7
05026/34I 01/26/2005 03/24/2005 NITRATE EP FOR WTP EP-AND
04027/30I 01/27/2004 07/20/2004 NITRATE EP FOR WTP EP-AND
03029/43I 01/28/2003 06/02/2004 NITRATE EP FOR WTP EP-A0.6
02084/04I 03/25/2002 04/04/2003 NITRATE EP FOR WTP EP-AND
 

Archived Nitrate Samples
Sample ID Sample
Date
Date
Received
Analyte Name Source Name Source
ID
Result
2103010070 02/27/2001 04/27/2001 Nitrate EP FOR WTP A0.11
2103010071 02/27/2001 04/27/2001 Nitrate CLACKAMAS RIVER AAND
00361/19 12/26/2000 02/05/2001 Nitrate EP FOR WTP AND
271/10 09/28/1999 12/29/1999 Nitrate EP FOR WTP AND
253/31 09/10/1998 02/17/2000 Nitrate EP FOR WTP AND
970225AY*A 02/25/1997 02/17/1998 Nitrate EP FOR WTP A0.13
961230A*A 12/30/1996 01/13/1997 Nitrate EP FOR WTP A0.26
961001BH*A 09/30/1996 10/10/1996 Nitrate EP FOR WTP A0.01
960626C*A 06/25/1996 07/10/1996 Nitrate EP FOR WTP A0.03
960325S*A 03/25/1996 04/16/1996 Nitrate EP FOR WTP A0.08
950327N*A 03/27/1995 06/07/1995 Nitrate EP FOR WTP A0.13
940330M*A 03/30/1994 06/06/1994 Nitrate EP FOR WTP A0.11
931227U*A 12/27/1993 02/18/1994 Nitrate EP FOR WTP A0.14
930927AL*A 09/27/1993 12/15/1993 Nitrate EP FOR WTP A0.02
930521K*A 05/19/1993 10/13/1993 Nitrate EP FOR WTP A0.04
15951 03/03/1993 10/13/1993 Nitrate EP FOR WTP A0.17
-1987986 01/20/1992 03/10/1992 Nitrate EP FOR WTP A0.3
-1987987 06/15/1991 07/23/1991 Nitrate EP FOR WTP AND
-1987988 01/11/1991 02/01/1991 Nitrate EP FOR WTP A0.48
-1987989 01/15/1990 02/14/1990 Nitrate EP FOR WTP A0.26
-1987990 01/17/1989 02/24/1989 Nitrate EP FOR WTP A0.29
-1987991 01/25/1988 02/11/1988 Nitrate EP FOR WTP A0.16
-1987993 01/26/1987 01/26/1987 Nitrate EP FOR WTP A0.16
-1987992 01/26/1987 02/17/1987 Nitrate EP FOR WTP A0.16
 




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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
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 4544