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~i <br />GEOTECHNICAL ENGINEERING REPORT Terracon <br />1 SLAB CANYON QUARRY RECLAMATION <br />LARIMER COUNTY, COLORADO <br />ELI PROJECT NO. 20945006 <br />1 FEBRUARY 2, 1994 <br />1 INTRODUCTION <br />This report contains the results of our geotechnical engineering exploration for the proposed <br />1 reclamation of Holnam, Inc.'s Slab Canyon Quarry located approximately 20 miles northwest of <br />Fort Collins, Colorado. The site is located in the Section 26, Township 1 1 North, R~3nge 70 West <br />of the 6th Principal Meridian. <br />The purpose of these services is to provide information and geotechnica engineering <br />J recommendations relative to: <br />• subsurface soil and bedrock conditions <br />J • groundwater conditions <br />J • embankment evaluation <br />J ~ earthwork <br />The conclusions and recommendations contained in this report are based upon the results of field <br />J observations and laboratory testing, engineering analyses, and experience with similar soil and <br />slope conditions. <br />J PROPOSED CONSTRUCTION <br />The project as we understand it is to construct load-out benches which will be approximately 60 <br />feet wide and 15 feet high. The benches will be constructed on approximately 1 %.:1 slopes. The <br />J load-out benches will be constructed with overburden sandstone material removed during the <br />quarrying process to obtain the limestone below. The dip slope on which these benches are to <br />be constructed is approximately 12 degrees to the east. The top of the load-out bench will grade <br />a minimum of 2 feet to the uphill end of the slope. The load-out benches will bey seeded with <br />vegetation and used for drainage and erosion control. <br />SITE EXPLORATION <br />The scope of the services performed for this project included site reconnaissance by a senior <br />J engineering geologist, a field sampling program, laboratory testing and engineerirn3 analyses. <br />J <br />