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<br />I <br />r <br />1 <br />1 <br />n <br />1 <br />r <br /> <br />1 <br />I <br />r <br />~~~ ?zzt~ ~SSIIL"Y2Y~$S <br />CONSULTING GEOTECHNICAL ENGINEERS AND MATERIAL TESTING <br />Beavers Construction <br />P.O. Box 638 <br />Paonia, Colorado 81428 <br />Attention: Mr. Art Beavers <br />April 20, 2000 <br />PN: M00079GE <br />Subject: Geotechnical Engineering Field Study and <br />Laboratory Study for the <br />Proposed Gravel Quarry Site near <br />Austin, Colorado <br />Mr. Beavers: <br />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 />The field study consisted of observing, describing and sampling <br />the soil materials encountered in five (5) track hoe excavated test <br />holes at the proposed gravel quarry site. The approximate <br />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 />Figures 2 through 9. <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 />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 />~ r~ holes at a depth of about four (4) to ten (10) feet to a depth of <br />about twenty-six (26) feet. <br />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 />areas. <br />r ~ <br /> <br />r <br /> P. O. BOX 3986 P. O. BO% 0045 214 BODO DR. <br /> GRAND JUNCTION, CO 81502 MONTROSE, CO 81402 DURANGO. CO 81701 <br /> (970)245.8606 (970)249-2154 (970)259-5095 <br /> FAX: (970) 248-9758 FA%: (970) 2494262 FAX: (970) 782-2515 <br />