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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
Blank Data: Surface Water

Pesticides in filtered water (0.7 micrometer glass fiber filter) measured by gas chromatography /mass spectrometry

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

Method reporting levels of all analytes

[µg/L - micrograms per liter, < - less than, E - estimated]

Site Identification Date Time Type of Blank 2,6-Diethylaniline (µg/L) Acetochlor (µg/L) Alachlor (µg/L) Alpha-BHC (µg/L) Atrazine (µg/L) Benfluralin (µg/L) Butylate (µg/L) Carbaryl (µg/L) Carbofuran (µg/L) Chlorpyrifos (µg/L) Cyanazine (µg/L) DCPA (µg/L) Desethyl Atrazine (µg/L) Diazinon (µg/L) Dieldrin (µg/L) Disulfoton (µg/L) EPTC (µg/L) Ethalfluralin (µg/L) Ethoprop (µg/L) Fonofos (µg/L) Lindane (µg/L) Linuron (µg/L) Malathion (µg/L) Methyl Parathion (µg/L) Methyl Azinphos (µg/L) Metolachlor (µg/L) Metribuzin (µg/L) Molinate (µg/L) Napropamide (µg/L) Parathion (µg/L) Pebulate (µg/L) Pendimethalin (µg/L) Permethrin (µg/L) Phorate (µg/L) p,p'-DDE (µg/L) Prometon (µg/L) Pronamide (µg/L) Propachlor (µg/L) Propanil (µg/L) Propargite (µg/L) Simazine (µg/L) Tebuthiuron (µg/L) Terbacil (µg/L) Terbufos (µg/L) Thiobencarb (µg/L) Triallate (µg/L) Trifluralin (µg/L)
Sacramento River at Freeport, CA 11/15/96 1038 Field Blank <.003 <.002 <.002 <.002 <.001 <.002 <.002 <.003 <.003 <.004 <.004 <.002 <.002 <.002 <.001 <.0170 <.002 <.004 <.003 <.003 <.004 <.002 <.005 <.006 <.001 <.002 <.004 <.004 <.003 <.004 <.004 <.004 <.005 <.002 <.006 <.018 <.003 <.007 <.004 <.013 <.005 <.01 <.007 <.013 <.002 <.001 <.002
Sacramento Slough near Knights Landing, CA 12/5/96 1108 Field Blank <.003 <.002 <.002 <.002 <.001 <.002 <.002 <.003 <.003 <.004 <.004 <.002 <.002 <.002 <.001 <.0170 <.002 <.004 <.003 <.003 <.004 <.002 <.005 <.006 <.001 <.002 <.004 <.004 <.003 <.004 <.004 <.004 <.005 <.002 <.006 <.018 <.003 <.007 <.004 <.013 <.005 <.01 <.007 <.013 <.002 <.001 <.002
Colusa Basin Drain at Road 99E near Knights Landing, CA 4/9/97 1108 Field Blank <.003 <.002 <.002 <.002 <.001 <.002 <.002 <.003 <.003 <.004 <.004 <.002 <.002 <.002 <.001 <.0170 <.002 <.004 <.003 <.003 <.004 <.002 <.005 <.006 <.001 <.002 <.004 <.004 <.003 <.004 <.004 <.004 <.005 <.002 <.006 <.018 <.003 <.007 <.004 <.013 <.005 <.01 <.007 <.013 <.002 <.001 <.002
Colusa Basin Drain at Road 99E near Knights Landing, CA 6/17/97 1008 Field Blank <.003 <.002 <.002 <.002 <.001 <.002 <.002 <.003 <.003 <.004 <.004 <.002 <.002 <.002 <.001 <.0170 E.0011 <.004 <.003 <.003 <.004 <.002 <.005 <.006 <.001 <.002 <.004 E.001 <.003 <.004 <.004 <.004 <.005 <.002 <.006 <.018 <.003 <.007 <.004 <.013 <.005 <.01 <.007 <.013 <.002 <.001 <.002
Colusa Basin Drain at Road 99E near Knights Landing, CA 8/26/97 1108 Field Blank <.003 <.002 <.002 <.002 <.001 <.002 <.002 <.003 <.003 <.004 <.004 <.002 <.002 <.002 <.001 <.0170 <.002 <.004 <.003 <.003 <.004 <.002 <.005 <.006 <.001 <.002 <.004 <.004 <.003 <.004 <.004 <.004 <.005 <.002 <.006 <.018 <.003 <.007 <.004 <.013 <.005 <.01 <.007 <.013 <.002 <.001 <.002
Sacramento River at Freeport, CA 12/12/97 1208 Field Blank <.003 <.002 <.002 <.002 <.001 <.002 <.002 <.003 <.003 <.004 <.004 <.002 <.002 <.002 <.001 <.0170 <.002 <.004 <.003 <.003 <.004 <.002 <.005 <.006 <.001 <.002 <.004 <.004 <.003 <.004 <.004 <.004 <.005 <.002 <.006 <.018 <.003 <.007 <.004 <.013 <.005 <.01 <.007 <.013 <.002 <.001 <.002

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