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Sacramento River Basin NAWQA Program

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Water-Quality Assessment of the Sacramento River
Basin, California: Water-Quality, Sediment and Tissue
Chemistry, and Biological Data, 1995-1998
(Open-File Report 2000-391)

Quality Control
Spike Data: Surface Water

Pesticides in filtered water (0.7 micromter glass fiber filter) measured by liquid
chromatography/ultraviolet light spectrometry

Number of significant figures do not reflect analytical method
reporting levels.

Method reporting levels of all analytes

[Cannot Calculate - Recovery of pesticide cannot be calculated because of estimated analytical values]

Site Identification Date Time 2,4,5-T (Percent Recovery) 2,4-D (Percent Recovery) 2,4-DB (Percent Recovery) Silvex (Percent Recovery) 3-Hydroxycarbofuran (Percent Recovery) DNOC (Percent Recovery) Acifluorfen (Percent Recovery) Aldicarb (Percent Recovery) Aldicarb Sulfone (Percent Recovery) Aldicarb Sulfoxide (Percent Recovery) Bentazon (Percent Recovery) Bromacil (Percent Recovery) Bromoxynil (Percent Recovery) Carbaryl (Percent Recovery) Carbofuran (Percent Recovery) Chlorothalonil (Percent Recovery) Clopyralid (Percent Recovery) Dacthal (Percent Recovery) Dicamba (Percent Recovery) Dichlobenil (Percent Recovery) Dichlorprop (Percent Recovery) Dinoseb (Percent Recovery) Diuron (Percent Recovery) Fenuron (Percent Recovery) Fluometuron (Percent Recovery) Linuron (Percent Recovery) MCPA (Percent Recovery) MCPB (Percent Recovery) Methiocarb (Percent Recovery) Methomyl (Percent Recovery) Neburon (Percent Recovery) Norfluorazon (Percent Recovery) Oryzalin (Percent Recovery) Oxamyl (Percent Recovery) Picloram (Percent Recovery) Propoxur (Percent Recovery) Triclopyr (Percent Recovery)
Colusa Basin Drain at Road 99E near Knights Landing, CA 11/12/97 1133 43 41 41 51 28 Cannot Calculate 23 0 0 0 Cannot Calculate 69 52 Cannot Calculate 57 Cannot Calculate 0 Cannot Calculate 3 Cannot Calculate 40 51 85 84 80 84 27 Cannot Calculate 92 133 79 97 64 26 0 41 35
Arcade Creek near Del Paso Heights, CA 11/14/97 0903 55 54   66 40 Cannot Calculate 0 0 0 0 0   39 66 47 Cannot Calculate 0 0 0 Cannot Calculate 25 60 38 47 66 66 0 Cannot Calculate 69 51 68 63 0 0 0 38 87
Colusa Basin Drain at Road 99E near Knights Landing, CA 3/11/98 1103 92 Cannot Calculate 76 96 71 Cannot Calculate Cannot Calculate Cannot Calculate Cannot Calculate Cannot Calculate Cannot Calculate 79 84 79 75 Cannot Calculate 0 43 Cannot Calculate Cannot Calculate 87 84 84 83 85 81 75 65 82 88 82 87 67 80 Cannot Calculate Cannot Calculate 85
Sacramento River at Freeport, CA 3/19/98 1103 89 84 83 89 100 Cannot Calculate 94 Cannot Calculate Cannot Calculate Cannot Calculate 79 83 86 88 92 Cannot Calculate 25 79 Cannot Calculate Cannot Calculate 85 85 91 97 93 86 77 77 89 96 78 91 68 77 60 86 80
Arcade Creek near Del Paso Heights, CA 4/23/98 1003 73 Cannot Calculate 47 100 71 Cannot Calculate 75 0 0 Cannot Calculate 47 58 84 67 69 Cannot Calculate 0 54 Cannot Calculate Cannot Calculate 73 103 Cannot Calculate 60 64 65 78 46 70 56 67 72 56 48 0 Cannot Calculate 76

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Page Last Modified: Friday, 04-May-2007 14:06:55 EDT