OHA Drinking Water Services
PWS ID: 94941 ---- TUALATIN VALLEY REGIONAL TRNG CTR
Chemical Results

ND = Not Detected at the Minimum Reporting Level
MCL exceedances are indicated with red text

Sample
ID		 Sample
Date		 Received
Date		 Chemical Source ID Result Current MCL UOM
3321021-01-I11/17/202311/22/2023NITRATE EP-AND10.000000 MG/L
207701901-I03/18/202203/31/2022NITRATE EP-AND10.000000 MG/L
110403601-I04/14/202104/20/2021NITRATE EP-AND10.000000 MG/L
035106601-I12/16/202012/24/2020NITRATE EP-AND10.000000 MG/L
902501801-I01/25/201901/30/2019NITRATE EP-A4.500000010.000000 MG/L
802602501-I01/26/201801/31/2018NITRATE EP-AND10.000000 MG/L
703402401-I02/03/201702/07/2017NITRATE EP-A1.900000010.000000 MG/L
601501901-I01/15/201601/19/2016NITRATE EP-A0.500000010.000000 MG/L
523301601-I08/21/201508/28/2015ARSENIC EP-AND0.0100000 MG/L
504400901-I02/13/201502/17/2015NITRATE EP-AND10.000000 MG/L
414301301-I05/23/201405/27/2014NITRATE EP-AND10.000000 MG/L
327402301-I10/01/201310/07/2013NITRATE EP-A1.000000010.000000 MG/L
300201401-I01/02/201301/07/2013NITRATE EP-A4.200000010.000000 MG/L
218501801-I07/03/201207/25/2012NITRATE EP-A0.800000010.000000 MG/L
209401901-I04/03/201204/19/2012NITRATE EP-A0.500000010.000000 MG/L
200301501-I01/03/201201/27/2012NITRATE EP-A0.500000010.000000 MG/L
127702001-I10/04/201110/21/2011NITRATE EP-A0.800000010.000000 MG/L
118600901-I07/05/201107/21/2011NITRATE EP-A0.500000010.000000 MG/L
109501201-I04/05/201105/23/2011NITRATE EP-A1.000000010.000000 MG/L
100401601-I01/04/201102/23/2011NITRATE EP-A0.600000010.000000 MG/L
1027838-I10/05/201011/05/2010NITRATE EP-A0.700000010.000000 MG/L
491234N-I07/06/201008/04/2010NITRATE EP-A0.700000010.000000 MG/L
485472N-I04/06/201004/28/2010NITRATE EP-A0.700000010.000000 MG/L
480165N-I01/05/201002/01/2010NITRATE EP-A2.000000010.000000 MG/L
474863N-I10/06/200910/29/2009NITRATE EP-A0.700000010.000000 MG/L
469477N07/07/200908/13/2009NITRATE EP-A0.700000010.000000 MG/L
464268N-I04/07/200905/06/2009NITRATE EP-A0.700000010.000000 MG/L
459169N-I01/06/200901/27/2009NITRATE EP-A0.600000010.000000 MG/L
454222N-I10/07/200810/23/2008NITRATE EP-A0.700000010.000000 MG/L
448422N-I07/01/200807/29/2008NITRATE EP-A0.700000010.000000 MG/L
443400-I04/01/200804/18/2008NITRATE EP-A0.600000010.000000 MG/L
439095N01/08/200802/05/2008NITRATE EP-A0.700000010.000000 MG/L
434474-I10/02/200710/24/2007NITRATE EP-A0.600000010.000000 MG/L
429655N07/03/200707/20/2007NITRATE EP-A0.700000010.000000 MG/L
424710N04/03/200705/02/2007NITRATE EP-A0.700000010.000000 MG/L
420180-I01/02/200702/05/2007NITRATE EP-B0.900000010.000000 MG/L
415602N10/02/200610/13/2006NITRATE EP-A1.400000010.000000 MG/L
410727N07/05/200607/20/2006NITRATE EP-A0.800000010.000000 MG/L
405855-I04/04/200604/13/2006NITRATE EP-AND10.000000 MG/L
396457-I10/04/200510/11/2005NITRATE EP-A1.200000010.000000 MG/L
391532-I07/12/200507/18/2005NITRATE EP-A0.700000010.000000 MG/L
386785-I04/19/200504/25/2005NITRATE EP-A0.500000010.000000 MG/L
381757-I01/18/200501/25/2005NITRATE EP-AND10.000000 MG/L
377349-I10/25/200411/03/2004NITRATE EP-A2.500000010.000000 MG/L
371882-I07/16/200407/26/2004NITRATE EP-A0.800000010.000000 MG/L
04056/13-I02/25/200403/08/2004NITRATE EP-A0.600000010.000000 MG/L
35732510/17/200310/22/2003NITRATE EP-A0.600000010.000000 MG/L
35145207/07/200307/21/2003NITRATE EP-A1.500000010.000000 MG/L
34649704/08/200304/21/2003NITRATE EP-AND10.000000 MG/L
03056/1102/25/200303/11/2003NITRATE EP-A0.700000010.000000 MG/L
34235601/20/200301/28/2003NITRATE EP-A0.700000010.000000 MG/L
02354/0412/20/200212/30/2002NITRATE EP-A0.600000010.000000 MG/L
33247507/16/200207/22/2002NITRATE EP-AND10.000000 MG/L
366689-I04/20/200204/26/2004NITRATE EP-A0.700000010.000000 MG/L
32671104/01/200204/08/2002NITRATE EP-A0.800000010.000000 MG/L
02056/0702/25/200203/11/2002NITRATE EP-AND10.000000 MG/L


Archived Results
Sample
Date		 Received
Date		 Chemical Source ID Result MCL
07/23/2001 07/30/2001 Nitrate AND10.000000
07/13/2001 07/23/2001 Nitrate AND10.000000
07/09/2001 07/13/2001 Nitrate A11.00000010.000000
07/31/2000 08/09/2000 Nitrate AND10.000000
07/26/1999 08/02/1999 Nitrate AND10.000000
05/28/1998 06/05/1998 Nitrate A0.680000010.000000
07/11/1996 08/08/1996 1,1,1,2-Tetrachloroethane AAND
07/11/1996 08/08/1996 1,1,1-Trichloroethane AAND0.2000000
07/11/1996 08/08/1996 1,1,2,2,-Tetrachloroethane AAND
07/11/1996 08/08/1996 1,1,2-Trichloroethane AAND0.0050000
07/11/1996 08/08/1996 1,1-Dichloroethane AAND
07/11/1996 08/08/1996 1,1-Dichloroethylene AAND0.0070000
07/11/1996 08/08/1996 1,1-Dichloropropene AAND
07/11/1996 08/08/1996 1,2,3-Trichloropropane AAND
07/11/1996 08/08/1996 1,2,4-Trichlorobenzene AAND0.0700000
07/11/1996 08/08/1996 1,2-Dibromo-3-Chloropropane (DBCP) AAND0.0002000
07/11/1996 08/08/1996 1,2-Dichloroethane AAND0.0050000
07/11/1996 08/08/1996 1,2-Dichloropropane AAND0.0050000
07/11/1996 08/08/1996 1,3-Dichloropropane AAND
07/11/1996 08/08/1996 1,3-Dichloropropene AAND
07/11/1996 08/08/1996 2,2-Dichloropropane AAND
07/11/1996 08/08/1996 2,4,5-TP Silvex AAND0.0500000
07/11/1996 08/08/1996 2,4-D AAND0.0700000
07/11/1996 08/08/1996 3-Hydroxycarbofuran AAND
07/11/1996 08/08/1996 Adipates (Di(2-Ethylhexyl)) AAND0.4000000
07/11/1996 08/08/1996 Alachlor (Lasso) AAND0.0020000
07/11/1996 08/08/1996 Aldicarb AAND
07/11/1996 08/08/1996 Aldicarb Sulfone AAND
07/11/1996 08/08/1996 Aldicarb Sulfoxide AAND
07/11/1996 08/08/1996 Aldrin AAND
07/11/1996 08/08/1996 Antimony Total AAND0.0060000
07/11/1996 08/08/1996 Arsenic AAND0.0500000
07/11/1996 08/08/1996 Atrazine AAND0.0030000
07/11/1996 08/08/1996 Barium AAND2.0000000
07/11/1996 08/08/1996 Benzene AAND0.0050000
07/11/1996 08/08/1996 Benzo (A) Pyrene AAND0.0002000
07/11/1996 08/08/1996 Beryllium Total AAND0.0040000
07/11/1996 08/08/1996 BHC-gamma (Lindane) AAND0.0002000
07/11/1996 08/08/1996 Bromobenzene AAND
07/11/1996 08/08/1996 Bromodichloromethane AA0.0163000
07/11/1996 08/08/1996 Bromoform AA0.0005000
07/11/1996 08/08/1996 Bromomethane AAND
07/11/1996 08/08/1996 Butachlor AAND
07/11/1996 08/08/1996 Cadmium AAND0.0050000
07/11/1996 08/08/1996 Carbaryl AAND
07/11/1996 08/08/1996 Carbofuran AAND0.0400000
07/11/1996 08/08/1996 Carbon Tetrachloride AAND0.0050000
07/11/1996 08/08/1996 Chlordane AAND0.0020000
07/11/1996 08/08/1996 Chloroethane AAND
07/11/1996 08/08/1996 Chloroform AA0.0232000
07/11/1996 08/08/1996 Chloromethane AAND
07/11/1996 08/08/1996 Chromium AAND0.1000000
07/11/1996 08/08/1996 Cis-1,2-Dichloroethylene AAND0.0700000
07/11/1996 08/08/1996 Cyanide AAND0.2000000
07/11/1996 08/08/1996 Dalapon AAND0.2000000
07/11/1996 08/08/1996 Dibromochloromethane AA0.0080000
07/11/1996 08/08/1996 Dicamba AAND
07/11/1996 08/08/1996 Dichloromethane (Methylene Chloride) AAND0.0050000
07/11/1996 08/08/1996 Dieldrin AAND
07/11/1996 08/08/1996 Dinoseb AAND0.0070000
07/11/1996 08/08/1996 Diquat AAND0.0200000
07/11/1996 08/08/1996 Endothall AAND0.1000000
07/11/1996 08/08/1996 Endrin AAND0.0020000
07/11/1996 08/08/1996 Ethylbenzene AAND0.7000000
07/11/1996 08/08/1996 Ethylene Dibromide (EDB) AAND0.0000500
07/11/1996 08/08/1996 Fluoride AAND4.0000000
07/11/1996 08/08/1996 Glyphosate AAND0.7000000
07/11/1996 08/08/1996 Heptachlor AAND0.0004000
07/11/1996 08/08/1996 Heptachlor Epoxide AAND0.0002000
07/11/1996 08/08/1996 Hexachlorobenzene (HCB) AAND0.0010000
07/11/1996 08/08/1996 Hexachlorocyclopentadiene AAND0.0500000
07/11/1996 08/08/1996 Lead AAND0.0150000
07/11/1996 08/08/1996 M-Dichlorobenzene AAND
07/11/1996 08/08/1996 Mercury AAND0.0020000
07/11/1996 08/08/1996 Methomyl AAND
07/11/1996 08/08/1996 Methoxychlor AAND0.0400000
07/11/1996 08/08/1996 Metolachlor AAND
07/11/1996 08/08/1996 Metribuzin AAND
07/11/1996 08/08/1996 Monochlorobenzene (Chlorobenzene) AAND0.1000000
07/11/1996 08/08/1996 Nickel AAND0.1000000
07/11/1996 08/08/1996 Nitrate AAND10.000000
07/11/1996 08/08/1996 Nitrate-Nitrite AAND10.000000
07/11/1996 08/08/1996 Nitrite AAND1.0000000
07/11/1996 08/08/1996 O-Chlorotoluene AAND
07/11/1996 08/08/1996 O-Dichlorobenzene AAND0.6000000
07/11/1996 08/08/1996 P-Chlorotoluene AAND
07/11/1996 08/08/1996 P-Dichlorobenzene AAND0.0750000
07/11/1996 08/08/1996 Pentachlorophenol AAND0.0010000
07/11/1996 08/08/1996 Phthalates (Di(2-Ethylhexyl)) AAND0.0060000
07/11/1996 08/08/1996 Picloram AAND0.5000000
07/11/1996 08/08/1996 Propachlor AAND
07/11/1996 08/08/1996 Selenium AAND0.0500000
07/11/1996 08/08/1996 Simazine AAND0.0040000
07/11/1996 08/08/1996 Sodium AA13.200000
07/11/1996 08/08/1996 Styrene AAND0.1000000
07/11/1996 08/08/1996 Sulfate AA18.000000
07/11/1996 08/08/1996 Tetrachloroethylene AAND0.0050000
07/11/1996 08/08/1996 Thallium Total AAND0.0020000
07/11/1996 08/08/1996 Toluene AAND1.0000000
07/11/1996 08/08/1996 Total Polychlorinated Biphenyls (PCB) AAND0.0005000
07/11/1996 08/08/1996 Total Xylenes AAND10.000000
07/11/1996 08/08/1996 Toxaphene AAND0.0030000
07/11/1996 08/08/1996 Trans-1,2-Dichloroethylene AAND0.1000000
07/11/1996 08/08/1996 Trichloroethylene AAND0.0050000
07/11/1996 08/08/1996 Vinyl Chloride AAND0.0020000
07/11/1996 08/08/1996 Vydate (Oxamyl) AAND0.2000000
12/12/1995 01/05/1996 Antimony Total BND0.0060000
12/12/1995 01/05/1996 Arsenic BND0.0500000
12/12/1995 01/05/1996 Barium BND2.0000000
12/12/1995 01/05/1996 Beryllium Total BND0.0040000
12/12/1995 01/05/1996 Cadmium BND0.0050000
12/12/1995 01/05/1996 Chromium BND0.1000000
12/12/1995 01/05/1996 Cyanide BND0.2000000
12/12/1995 01/05/1996 Fluoride BND4.0000000
12/12/1995 01/05/1996 Lead B0.00100000.0150000
12/12/1995 01/05/1996 Mercury BND0.0020000
12/12/1995 01/05/1996 Nickel BND0.1000000
12/12/1995 01/05/1996 Nitrate B0.600000010.000000
12/12/1995 01/05/1996 Nitrate-Nitrite B0.600000010.000000
12/12/1995 01/05/1996 Nitrite BND1.0000000
12/12/1995 01/05/1996 Selenium BND0.0500000
12/12/1995 01/05/1996 Sodium B16.600000
12/12/1995 01/05/1996 Sulfate B16.000000
12/12/1995 01/05/1996 Thallium Total BND0.0020000


A blank or a 0 in the MCL column indicates that a MCL has not been set for that chemical.
This list represents all sample results for all of the water system's sources and entry points.


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