"SAl will review previous in situ experience at the Rock Springs sites and evaluate site-specific information such as core samples, site surveys, well logs, etc. SAl will obtain a six-inch-diameter core sample at least forty feet long from the portion of the Tipton member at Rock Springs Site 10 shown on the attached map. Geologic, hydrologic and lithographic evaluations will be performed and the core will be made available for required rock mechanics tests. SAl will evaluate the basis for concept evaluation in this task."