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DDRW-WB PAGE 2 <br /> SUBJECT : Offsite Contamination of Crops and Agricultural <br /> Supply Wells <br /> A chain of custody was maintained for all samples taken and <br /> is available for review if requested . <br /> The sampling method for the crops is as follows : Samples <br /> of walnuts were collected , two each from the young orchard <br /> and two from the mature orchard . <br /> Of those in the young orchard , one sample was taken from <br /> the tree closest to the first water outfall of the number <br /> three agricultural well and one sample farthest from that <br /> outfall . Our reasoning being that if Agricultural Well 3 <br /> is polluted , contaminants will be highest in the outfall <br /> closest to the well and least in water/sample farthest from <br /> the well . Also , young trees uptake greater quantities of <br /> water than mature trees . The mature walnut orchard was <br /> sampled in the same manner , closest to the first outfall <br /> for Agricultural Well 3 and farthest away from the first <br /> outfall . <br /> This reasoning was then applied to all other crop samples . <br /> The alfalfa was sampled nearest to and farthest away from <br /> the first outfall of Agricultural Till 2 . The beans were <br /> sampled nearest to and farthest away from the first outfall <br /> of Agricultural Well 1 . <br /> DDRW-WB invites your comments on this process , but unless <br /> directed otherwise feels this is an adequate investigation <br /> of crop contamination . <br /> The Agricultural Wells 1-3 , water samples were taken at the <br /> first outfall closest to the respective pumps . <br /> The 4 September 1991 , results showed contamination of <br /> Agricultural Wells 1 and 2 , but nothing in Agricultural <br /> Well 3 . This was unexpected because it was anticipated <br /> that contamination would be verified in Agricultural Well 3 <br /> and nothing for 1 and 2 (Enclosure 2) . <br /> DDRW-WB immediately contracted with American Environmental <br /> to resample and retest . <br /> The agricultural wells were again sampled on 9 September <br /> 1991 ; split samples were taken and the sampling location <br /> was slightly changed . <br />