Contains correspondence, maps, and diagrams relating to soil testing at SRP undertaken as part of effluent stream studies. Maps and diagrams include maps of area; map 3302, sheets 558-61 and 587-88; diagrams of dams #3 and #4; cross-section of canal; diversion box; and junction box. Correspondence (which includes a number of teletype messages) is concerned with boring locations; features of the maps; descriptions of areas for use in determining alignment of the "PH effluent ditch; status of soils exploration program; canal soil investigation; relocation of dams 1, 2, and 4; modifications applicable to Project 981099-20 (Increased Cooling Water--100 Areas); stability analysis of P Effluent Earth darns. Includes 1/13/60 Consolidation Test Report on tests performed by U.S. Army Engineering Laboratory, South Atlantic, Marietta, GA; 1/19/60 Triaxal Compression Test Report and 2/19/60 Gradation Curves from tests performed by same; 1/7/60 Compaction Test Report.