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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)

Arcade Creek near Del Paso Heights, 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)
2/6/96 0945 <44 <44 <60 <57 150 <31 <38 <41 98 E26 <28 <38 <57 E16 E21 E7 <38 <60 <41
3/5/96 0910 <44 <44 <60 <57 185 <31 <38 <41 1010 <41 <28 <38 <57 42 <25 40 <38 <60 <41
3/5/96 0918 <44 <44 <60 <57 <22 <31 <38 <41 <28 <41 <28 <38 <57 <44 <25 <25 <38 <60 <41
4/26/96 1100 <44 <44 <60 <57 60 <31 <38 <41 220 455 <28 <38 <57 211 51 32 <38 <60 <41
5/21/96 1040 <44 <44 <60 <57 35 <31 <38 <41 170 211 <28 <38 <57 E40 29 E12 <38 <60 <41
5/22/96 0830 <44 <44 <60 <57 39 <31 <38 <41 404 316 <28 <38 <57 E29 <25 E14 <38 <60 <41
6/21/96 1140 <44 <44 <60 <57 <22 <31 <38 <41 205 54 <28 <38 <57 <44 <25 <25 <38 <60 <41
7/23/96 1430 <44 <44 <60 <57 84 <31 <38 <41 173 45 <28 <38 <57 48 <25 <25 <38 <60 <41
8/26/96 1600 <44 <44 <60 <57 <22 <31 <38 <41 222 E28 <28 <38 <57 E20 <25 <25 <38 <60 <41
9/9/96 1330 <44 <44 <60 <57 <22 <31 <38 <41 135 E27 <28 <38 <57 <44 <25 E16 <38 <60 <41
10/17/96 1440 <44 <44 <60 <57 <22 <31 <38 <41 47 E24 <28 <38 <57 53 <25 <25 <38 <60 <41
11/3/97 1200 <44 <44 <60 <57 <22 <31 <38 <41 128 120 <28 <38 <57 <44 <25 <25 <38 <60 <41
1/11/98 1420 <44 <44 <60 <57 <22 <31 <38 <41 373 <41 <28 <38 <57 <44 44 <25 <38 <60 <41

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