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_ January 24, 2006 NOA Project Number: E05165A Product Name Active in redient 2000 2001 2002 2003 2004 2005 Roundup ultra herbicide Glyphosate,isoprpylamine salt X X X Roundup ultramax Glyphosate,isoprpylaniine salt X X X t Roundup herbicide Glyphosate,isoprpylamine salt X X X X Sim-Trot 90 Df Simazine X X X X X X Sovan 50 DF Fungicide Kresoxim-Meth 1 X X Su racide 25 wp Methidathion X X Thios erse 80% Sulfur X .. To sin-m 70w Thio hanate X To sin-m wsb Thio hanate-Meth 1 Vapam hl(amvac) Metam-Sodium X Vendex 50wp Fenbutatin-Oxide X X X Weevil-Cide Tablets Aluminum Phosphide X Wilco Gopher Getter Bait Di hacinone X X X l` Ms. Gallego has stated that the chemical permits are typically issued based on the intended crop which is reportedly to be planted that year and the geographical location of the field. The permits are issued for the most commonly used chemicals for that crop and do not indicate the chemicals ~" that were actually applied. According to Ms. Gallego,when a chemical for which a permit has been issued is applied to a field,a use report must be filed with the Agricultural Commissioner. The use reports do not include chemicals for which a permit is not required. L According to EXTOXNET,permethrin is a broad-spectrum synthetic pyrethroid insecticide classified in all products as an RUP. This chemical is moderately toxic to mammals and birds,but extremely toxic to aquatic species and bees. Permethrin is of low to moderate persistence in soils with a half life of 30-38 days. In water half lives have been reported less than 2.5 days. This chemical degrades rapidly in water and can persist in some sediment. According to EXTOXNET,azinphos-methyl is a highly persistent,broad spectrum insecticide. It is a member of the organophosphate class of chemicals. The half-life in sandy loam soil is 5 days. r' Azinphos-methyl is eliminated in feces and urine of mammals within 2 days of administration. According to the PMEP, fenpropathrin has a reported half-life of 33 to 34 days under aerobic soil conditions. "The end-use product (Danitol 2.4 EC Spray) has moderate to low acute oral, dermal, inhalation and eye/skin irritation toxicity." %W According to EXTOXNET, diazinon is an organophosphate insecticide classified as slightly toxic to l moderately toxic, depending on the formulation. Its average half-life in soil is two to four weeks. Diazinon has been detected in 54 wells in California. According to EXTOXNET,paraquat is a quaternary nitrogen herbicide classified as an RUP and a highly toxic compound in EPA toxicity class I. Many cases of illness and/or death have been reported in humans. The compound is moderately toxic to birds and many aquatic organisms. The chemical is highly persistent in the soil environment,with reported field half-lives of greater than 1000 days. Studies have shown the half life in water to be as fast as 13.1 hours and up to 23 weeks. v 9