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1, TRI/ENVIRONMENTAL, INC. <br />A Texas Research International Company <br />Particle Size Analysis for Soils <br />Client: Venture Resources, Inc. TRI Log#: E2337-21-10 <br />Project: Hukill Gulch Millsite Test Method: ASTM D 422 <br />Sample: Dry Mill Tailings Test Date: 03/09/10 <br />Sieve Sizes <br />Y'2" 3/4" 3/8" 4 10 20 40 60 100 200 <br />100 <br />80 <br />60 <br />w <br />a? <br />40 <br />a? <br />a <br />20 <br /> <br />• <br />0 <br />? . <br /> <br /> <br /> <br />100 10 1 0.1 0.01 0.001 0.0001 <br />Particle Size (mm) <br />Sieve Analysis <br />Sieve Sire Percentage Passing <br />3 in. 100.0 <br />2 in. 100.0 <br />1.5 in. 100.0 <br />1 in. 100.0 <br />3/4 in. 100.0 <br />3/8 in. 100.0 <br />No. 4 (4.75 nun) 99.7 <br />No. 10 (2.00 nun) 98.5 <br />No. 20 (850 µm) 96.9 <br />No. 40 (425 µtn) 89.8 <br />No. 60 (250 µm) 79.9 <br />No. 100 (150 µm) 65.4 <br />No. 200 (75 µtu) 45.8 <br />Notes: Soil classifies as a lean clay (CL) <br />in accordance with ASTM D 2487. <br />The as received moisture content <br />was 5.09 % as determined by <br />ASTM D 2216, dry density was <br />93.3 pcf, and total density was <br />98.0 pcf <br />Plastic Index ASTM D 4318 Results <br />Liquid Limit 19 <br />Plastic Limit NP <br />Plastic Index NP <br />Notes: Specimen was air dried, 3 point Liquid <br />Limit procedure was used. <br />Cheng-Wei Chen, 05/16/1.0 <br />Quality Review/Date <br />Tested by: Adam Lewis & Olga Vasquez <br />The testing herein is based upon accepted industry practice as well as the test method listed. 'rest results reported herein do not apply <br />to samples other than those tested. TRI neither accepts responsibility for not makes claim as to the final use and purpose of the material. <br />TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI. <br />9063 Bee Caves Road ? Austin, TX 78733-6201 ? (512) 263-2101 ? (512) 263-2558 ? 1-800-880-TEST