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Proposal - Engine ~g Geologic Feasibility StudY~~ Proposed Coffintop Dam and Reservoir Site June 8, 1981 Page 5 preliminary subsurface investigation by means of core drilling at 3 or 4 strategic locations along the dam aXis. The scope of services is specifically defined and described as follows: Aquisition and Review of Existing Data All pertinent, existing, published and unpublished, geological literature will be acquired and reviewed. Topographic Mapping Bench marks and other ground control poi nts wi 11 be located or established in the Study Areas and marked for aerial photography. The Study Area will be photograrTJl\etrically flown for: (1) the acquisition of stereographic pairs of aerial color photographs and infrared imagery; and (2) the preparation of a detailed, accurate topographic map of the Study Area at a scale of one inch equal to one hundred feet (1" = 100') and a contour interval of two feet (2'). The dam site, as identified on the attached Exhibit B, shall be 'illustrated on a topographic map at a scale of one inch equal to fifty feet (1" = 50') which actually will be enlargements of appropriate portions of the above describ~d, larger area map. All topographic maps will be pencil office-edited manuscripts. Field Mapping By way of aerial photographic and infrared imagery interpretation and careful field mapping,' detailed geologic maps of the Study Area as a who le, as ill ustrated by EX~ibit A, and of the dam site as shown on Exhibit B, shall be constructed. Such maps shall show: (1) observed or inferred geological contacts between surficial soil deposits and litho- stratigraphic bedrock units; (2) geologic symbols denoting such deposits or units; (3) symbols showing the attitudes of geologic structural features; (4) locations of detailed fracture-joint surveys; (5) locations of cross sections; (6) locations of springs, marshy areas, and other areas of groundwater, effluent, if any; and (7) any other pertinent geological data. , A mlnlmum of 1,000 lineal feet of detailed field fracture-joint surveys will be conducted at selected locations on accessible outcrops of UEBLACKER ASSOCIATES. INC.