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Mr. Mike Galloway <br />June 17, 1991 <br />- ~ Page 3 <br /> <br />In order to accommodate equipment traffic for placement and removal of the <br />refuse, the low-permeability layer should be covered with a layer of gravel. <br />A two-foot thick layer is shown in Figure 1. Refuse could be used for this <br />gravel layer, if it is relatively ciean and durable. <br />The facility layout shows a perimeter berth, using the same low-permeability <br />materials as the base. This will isolate waters collected inside the facility <br />from areas outside of the facility. <br />The facility design described above has been prepared to a level of detail for <br />Permit Stipulation No. 20. Additional detail for construction of the facility <br />may be added based an actual grades of the terraced site area and the <br />availability low-permeability soils and gravel. <br />If you have questions concerning the information in this letter, please call me. <br />Yours sincerely, <br />WATER, WASTE 8 LAND, INC. <br />~CLtY~~Z~' l~1LGta~1 <br />Clint Strachan, P.E. ~~~~~~~~"~DUIS <br />Manager, Geotechntcal/Mining Division ~.~,~N-,,._._.. <br />Attachment _* io ~y~jU[ w; <br />N <br />~ei7~~~: <br />4~~i~1~ OF CO~'00~~~ <br />