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�Zanthai nub Assurionfes <br /> CONSULTING GEOTECHNICAL ENGINEERS AND MATERIAL TESTING <br /> April 20, 2000 <br /> Beavers Construction <br /> P.O . Box 638 <br /> Paonia, Colorado 81428 <br /> Attention: Mr. Art Beavers <br /> PN: M00079GE <br /> Subject : Geotechnical Engineering Field Study and <br /> Laboratory Study for the <br /> 1 Proposed Gravel Quarry Site near <br /> Austin, Colorado <br /> r. <br /> Mr. Beavers: <br /> 1 This letter presents the results of our March 30 through April <br /> 20, 2000 geotechnical engineering field and laboratory studies for <br /> your proposed gravel quarry project . <br /> t The field study consisted of observing, describing and sampling <br /> 1 the soil materials encountered in five (5) track hoe excavated test <br /> holes at the proposed gravel quarry site. The approximate <br /> r locations of the test holes are shown on Figure 1 . The logs <br /> describing the soils encountered in the test holes are presented on <br /> 1 Figures 2 through 9. <br /> r <br /> At the time of our field study the site was vacant. The proposed <br /> 1 quarry site is located on the crest of a small knoll which slopes <br /> down in all directions near the perimeter of the proposed quarry. <br /> r <br /> The shallow soil materials encountered in the test holes <br /> consisted generally of clayey sand to sandy clay material to a <br /> depth of about four (4) to ten (10) feet . <br /> Sand and gravel material with cobbles was encountered in the test <br /> holes at a depth of about four (4) to ten (10) feet to a depth of <br /> about twenty-six (26) feet. <br /> 1 Test hole 1 was excavated in the bottom of an existing gravel <br /> quarry area. The gravel quarry was about fifteen (15) deep. The <br /> test hole log reflects the material exposed in the cut face of the <br /> quarry excavation plus the track hoe test hole excavation. Test <br /> holes 2, 3, 4, and 5 were excavated from the original ground <br /> surface and did not encounter the maximum depth of gravel in those <br /> r 1 areas. <br /> P.O.BOX 3965 P.O.BOX 0045 214 BODO DR. <br /> GRAND JUNCTION,CO 61502 MONTROSE,CO 81402 DURANGO,CO 81301 <br /> j I (970)2454506 (970)249-21 S4 (970)259-5095 <br /> !• FAX: (270)248.9758 FAX: (970)249.3262 FAX; (970)382.2S15 <br />