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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)

Sacramento River above Bend Bridge near Red Bluff, California

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

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

Method reporting levels of all analytes

[nanogram/L - nanogram per liter, < - less than, E - estimate]

Date Time Eptam (nanogram/L) Pebulate (nanogram/L) Molinate (nanogram/L) Trifluralin (nanogram/L) Simazine (nanogram/L) Carbofuran (nanogram/L) Atrazine (nanogram/L) Fonofos (nanogram/L) Diazinon (nanogram/L) Carbaryl (nanogram/L) Alachlor (nanogram/L) Thiobencarb (nanogram/L) Malathion (nanogram/L) Metolachor (nanogram/L) Chlorpyrifos (nanogram/L) Dacthal (nanogram/L) Methidathion (nanogram/L) Napropamide (nanogram/L) Cyanazine (nanogram/L)
2/13/96 1130 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
3/8/96 1020 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
4/24/96 1030 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
5/30/96 0930 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 E17 <38 <57 <44 <25 <25 <38 <60 <41
6/27/96 1000 <44 <44 <60 <57 <22 <31 <38 <41 <28 E1 <28 <38 <57 <44 <25 <25 <38 <60 <41
7/11/96 1430 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
8/29/96 1030 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
9/20/96 1300 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
10/23/96 1020 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
11/22/96 1330 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
12/12/96 1700 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 E13 <44 <25 <25 <38 <60 <41
1/3/97 1230 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
2/20/97 0930 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
3/20/97 1000 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
4/22/97 0950 <44 <44 <60 <57 <22 <31 E1 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
5/30/97 1200 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
6/25/97 1000 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
7/23/97 1000 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
8/21/97 1000 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
9/17/97 1000 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
10/22/97 1000 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 E19 <44 <25 <25 <38 <60 <41
11/19/97 1000 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 E14 <38 <60 <41
12/10/97 1000 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
1/14/98 1000 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
2/18/98 1230 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
3/18/98 1100 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
4/9/98 1000 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41

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