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David L. Bucknam <br />-~~ Page 2 <br />November 3, 1975 <br />How will increased salt concentrations he avoided in the surface water considering <br />the Eact thaC the drainage water will run through a dump of freshly Cractured <br />shale? One would assume chat [he surFace area of fresh shale exposed Co water will <br />be greatly increased which would cause at leasC a slight increase in dissolved <br />solids in the surface cunoff as i[ leaves the dump. <br />Other concerns which were not included in [he EIS and need to be ^ddressed are: <br />1) What alternatives Co the proposed disposal method were considered and why <br />were they rejected? 2) Is the proposed method of disposal [he one which will <br />be used for a full scale operation? If so, what scale up problems are foreseen? <br />3) Dow is the apparent waste of oil shale resource in the dump justified? <br />In general, Chen, it appears that the proposed dump site can be engineered and <br />designed such that slope stability can be maintained throughout time. However, <br />some questions need t.o be answered prior to the permit approval in order [o insure <br />that the fill material remains on the properly i.n question in the configuration <br />as planned and that it is the best method of disposal available. <br />If we can be of further assistance, please contact our office. <br />Sincerely, <br />David C. Shelton <br />Engi~ieering Geologist <br />DCS/jp <br />r <br />