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f <br /> November 15, 2004 <br /> NOA Project Number: E04123A <br /> Table 1. <br /> Summary of 1999 Agricultural Use Permits <br /> Chemical Walnuts Cherries Eggplant Fruiting <br /> Pepper Tomatoes Onions <br /> Sevin x x x x <br /> Guthion x x <br /> Thiodan x <br /> Monitor I I x <br /> Nlethom l I I x I I x <br /> L The use report for 1999 revealed that the eggplant,peppers and tomatoes were treated with Thiodan <br /> (endosulfan). <br /> a <br /> L The permits revealed that in 2003, that 13 acres were used to grow oats, and two acres were used to <br /> grow walnuts.A summary of the 2003 permit information is presented in Table 2. <br /> Table 2. <br /> Summary of 2003 Agricultural use Permits <br /> Chemical Oats Walnuts <br /> Sevin x <br /> Guthion x <br /> 2,4-D Amine x s <br /> Paraquat x x <br /> MCPA x <br /> Dicamba s <br /> Methom x <br /> L 'The use report for 2003 indicated that the oats were treated with MCPA. <br /> The EXTOXNET web site was consulted for information about toxicity and persistence of the <br /> V agricultural chemicals applied to the site. According to EXTOXNET,endosulfan is a Restricted Use <br /> Pesticide in EPA toxicity class I (highly toxic). Endosulfan has a half-life in soil of 35 to 150 days. <br /> i MCPA is a General Use Pesticide in EPA toxicity class III(slightly toxic). The field half-life is reported <br /> L to be 14 days to one month. <br /> L <br /> 6 "444 <br /> j <br />