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November 15,2004 <br /> NOA Project Number: E04123A <br /> 4 Table 1. <br /> Summary of 1999 Agricultural Use Permits <br /> Chemical Walnuts Cherries Eggplant Fruiting Tomatoes Onions <br /> Pepper <br /> Sevin c x x a <br /> Guthion s <br /> L <br /> Thiodan <br /> Monitor x <br /> Methom l x x <br /> The use report for 1999 revealed that the eggplant, peppers and tomatoes were treated with Thiodan <br /> (endosulfan). <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 x <br /> Paraquat x x <br /> MCPA x <br /> Dicamba x <br /> Methom l 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 /> 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 /> � 6 <br /> '-'44L <br /> i <br />