sample dimensions or configuration. Thus, for example, samples which were 10-cm thick will be considered equally with samples which were 15- em thick if they both were reported to have the same plutonium concentrations. Accordingly, islands or portions of islands which the Survey showed to have plutonium at less than 40 pCi/g will not be investigated. B. PU SUSPECT AREAS. 1. Enclosure 1 differentiates those islands and portions of islands which might require soil removal from those which will definitely not require soil removal. (Approval of this Plan by ERDA is tantamount to a certification that the islands and portions of islands Mo | e excluded from cleanup according to Enclosure 1 do not have plutonium lan. contamination; namely, i: ne ‘- a 40 pCi/g.) Without strong and new evidence to Mo the contrary, only the areas designated for sampling in Enclosure 1 will a be investigated. These areas will be referred to henceforth as “Pu suspect areas." 2; Pu suspect areas will be sampled at the locations specified in Enclosure 1. weet Each Pu suspect area will be surveyed to establish the horizontal coordinates and elevations of locations to be sampled. “eg See. Be : 2¥) e ‘ a Pu suspect area the sampling locations can be readily identified. "Se These , . if # ; . . sample locations will be uniquely marked so that on subsequent visits to at. For areas having dense or tall vegetation that might interfere with survey- eo . an La o * ~ z .ae _. “oe nie RU Ys; reecome " oe OR repr CR aS, ee :f i 4 ‘ eg ett : 8 A pot Kltrei ‘Rye ‘ «ER ee te 4 & abegrea rdae iyaeeee ge foeFla " ae pg Mey vy Me ral Msa nh. felthey a