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<br />DAMES 8 MOORE <br /> <br />Mr. Felix L. Sparks <br />June 17. 1977 <br />Page 6 <br /> <br />Special attention will be given to the pressure test data. Foundation <br /> <br /> <br />permeability will be analyzed and susceptibility of the foundation <br /> <br /> <br />materials to piping and other seepage hazards will be evaluated. The <br /> <br /> <br />effectiveness of grouting the foundation rock will be evaluated. <br /> <br />Detailed Analysis of Preliminary Dam Desi~n <br /> <br /> <br />The data concerning potential dam construction materials obtained by <br /> <br /> <br />the USER during field and laboratory investigations will be critically <br /> <br /> <br />reviewed. The preliminary dam design philosophy, criteria, parameters <br /> <br /> <br />and methods will be reviewed. The preliminary design cross-section will <br /> <br /> <br />be reviewed for optimum usage of available construction materials. <br /> <br />The seismicity of the area will be investigated to ensure that the <br /> <br /> <br />magnitude of seismic loading is compatible with the seismic potential <br /> <br /> <br />of the area. <br /> <br />Seepage Studies <br /> <br /> <br />Seepage studies of the dam/foundation unit performed by the USER will be <br /> <br /> <br />critically reviewed. Estimated quantity of seepage, potential for piping <br /> <br /> <br />and adequacy of the foundation to resist potential seepage forces will all <br /> <br /> <br />be evaluated. It is assumed that a limited amount of independent analysis <br /> <br /> <br />will be required and our program includes time and costs for such studies. <br /> <br />Foundation Treatment <br /> <br /> <br />The proposed. foundation treatment will be reviewed. Assumptions and <br /> <br /> <br />criteria used in designing the slurry trench will be evaluated. <br /> <br /> <br />Compatibility of slurry trench with foundation materials and effectiveness <br /> <br /> <br />in light of past performance at similar projects and present state of the art <br />