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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)

Cache Creek at Rumsey, 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)
2/9/96 1150 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
3/7/96 1340 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
4/24/96 1230 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
5/29/96 1100 <44 <44 <60 <57 56 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
6/26/96 1200 <44 <44 <60 <57 52 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
7/9/96 1230 <44 <44 <60 <57 94 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
8/28/96 1230 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
9/17/96 1230 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
10/22/96 1230 <44 <44 <60 <57 71 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
11/18/96 1500 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
12/13/96 1240 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 E12 <44 <25 <25 <38 <60 <41
1/15/97 1100 <44 <44 <60 <57 189 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
2/19/97 1050 <44 <44 <60 <57 168 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
3/19/97 1120 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
4/21/97 1030 <44 <44 <60 <57 E15 <31 <38 <41 E1 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
5/27/97 1350 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
6/24/97 1100 <44 <44 <60 <57 46 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
7/22/97 1030 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
8/20/97 1130 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
9/16/97 1150 <44 <44 <60 <57 36 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
10/16/97 1030 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
11/18/97 1300 <44 <44 <60 <57 E13 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
12/18/97 1030 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
1/20/98 1300 <44 <44 <60 <57 71 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
3/26/98 1040 <44 <44 <60 <57 77 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
4/14/98 1100 <44 <44 <60 <57 79 E3 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41

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