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<br /> <br />Mr. Dean Massey ~ ~ rr~R +~ ~ <br />March 1, 1978 '' ~y ~ <br />Page 4 `~~v"~ ~ ,~~~~ <br />formation. Because of the impermeability of <br />this formation, water passes through it only <br />in fractures, which conduct most of it to the <br />outcrop where it is produced as seeps and <br />springs. The springs emerge from the so-called <br />"broken zone" (shown on the stratigraphic column <br />submitted as part of Exhibit G), approximately 100 <br />feet above the highest elevation of the retort and <br />associated mine workings. Nonetheless, a tiny <br />percentage of this water is carried through <br />fractures in the Green River formation through <br />other impermeable strata to the region of the <br />retort. <br />There will be an "air level" above the top of the <br />next planned retort, Retort 6, separated from the <br />retort itself by a sill pillar approximately 50 <br />feet thick. This pillar includes the Four Senators <br />strata which are very impermeable. The air level <br />will be designed to serve as a water collection <br />gallery and to drain any water collected away from <br />the retort. The drifts leading from the air level <br />will also be designed so that any water that <br />accumulated in the gallery will flow by gravity <br />away from the spent retort. Thus, water flowing <br />down toward the top of Retort No. 6 via any occa- <br />sional fractures below the Broken Zone will be <br />diverted around the retort. The area around the <br />retort will contain several drifts, raises, inclines <br />and other workings that would intercept water which <br />could reach the retort. <br />Any water encountered in the retort itself ("retort <br />water") will be collected in contained facilities <br />segregated from the mine water, and recycled (after <br />separation of the oil) to a Thermo Sludge boiler <br />for further use in a closed system." <br />You also asked for a map showing a bird's eye view of <br />the location of the retorts. Enclosed are a topographic base <br />map and a mylar overlay showing the property boundaries, the <br />mahogany outcrop (usually appearing on sheer cliff) and the loca- <br />tion of the existing Retorts 1-5 and scheduled Retort 6. Future <br />retorts will first be located in the Northeast quarter or the North- <br />west quarter of Section 25 or the Southeast quarter of Section 24, <br />Township 2, South, Range 95 West of the 6th P.M. Additional <br />