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rapidly defining cultural deposits. Though exhibiting mainly • <br />gross aspects of these deposits, excavation by heavy equipment <br />may be considereci valid when applied in conjunction with con- <br />trolled grid excavation and a limited time framework. <br />Coordination of the various testing procedures aided in <br />defining a specific area of cultural deposition in .5RT139. <br />Since both backhoe trenching and controlled excavation were <br />conducted simultscneously, once significant cultural manifesta- <br />tions had been defined all additional testing procedures were <br />terminated. This left three of the excavation grids incomplete. <br />In addition to the original four backhoe trenches called for <br />in the proposal, five more were excavated, resulting in a <br />total of nine trenches ranging. from 20.meters to 130 meters. <br />The purpose of increasing the trenching program was to rapidly • <br />define cultural deposits that were located in the first trench <br />and to eliminate other areas from potential mitigation plans. <br />5RT142 <br />5RT142, the second site tested,is much smaller and more <br />limited topographically than 5RT139. Based on the~size differen- <br />tiation, the proposed testing program was more conservative. <br />The proposal suggested the excavation of four 1 meter by 1 meter <br />test grids and two cutbank excavations. In actuality, a total <br />of five tests were made on the terrace and associated eastern <br />ridge slope, three of which, located on the drainage embankment, <br />.served the duplicate purpose of both cutbank and test excavation. <br />• <br />6 <br />