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0 <br /> Finally, the Tertiary Mining excavation will extend north on the ridge extending north from the <br /> center of the permit area to the section line between Sections 18 & 7. This final extraction is <br /> expected to take from 1 to 2 years. <br /> MINING TIMETABLE <br /> PHASE ACTIVITY TIMEFRAME <br /> Initial Strip& stockpile topsoil (3,000 CY) Winter—2001 1 week <br /> Relocate south overburden stockpile to worked-out pit Winter—2001 2-3 weeks <br /> south highwall to the west(16,200±CY) <br /> Strip overburden and dispose into northwest depression Winter-2001 1-2 weeks <br /> embankment fill (6,500±CY) <br /> Resume southwest comer (initial) extraction and Winter—2001 to 2003± <br /> production from current pit to west boundary along south <br /> topsoil stockpile. <br /> Secondary Strip& stockpile topsoil (7,500 CY) Spring 2003 1-2 weeks <br /> Relocate north overburden stockpile to worked-out pit floor Spring 2003 2 weeks <br /> to the west(16,250±CY) <br /> Strip overburden and dispose into northwest depression Spring 2003 1 week <br /> embankment fill(6,500±CY) <br /> Resume (secondary) extraction and production from west Spring--2003 to 2006 <br /> permit boundary topsoil stockpile proceeding east to the <br /> northeast process/stockpile area. <br /> Tertiary Strip&stockpile topsoil (3,500 CY) Spring 2006 1 week <br /> Strip overburden and dispose into northwest depres-sion Spring 2006 1-2 weeks <br /> embankment fill(6,500±CY) <br /> Resume extraction and production at north ridge (tertiary) Spring—2006 to 2008 <br /> from central permit area and proceed to the north terminus. <br /> Reclaim See Reclamation Plan, Exhibits E&F. I Spring—2008+ <br /> [f] Sand & gravel deposits to be mined are well rounded, well-graded, 10-inch-minus alluvial <br /> deposits lying in depths of fifteen up to about twenty feet deep(t)(i),judging from excavated portions <br /> of the site. Test pits dug in un-mined portions of the site revealed gravel resource as deep as the <br /> backhoe could reach (15 to 16 feet). Clay underlies the alluvial gravel deposits to be mined. (t)(ii). <br /> [g] Sand & gravel mined and processed is to be used as rock aggregate in a local state highway <br /> and other construction projects. Earth borrow is used for embankment and impervious clay liner. <br /> [h] The only incidental product is the earth borrow material described in the paragraph above. <br /> 14 <br />