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May 4,2012 <br />Project No. 12 -1629 <br />Mr. Henry Schuler <br />PO Box 398 <br />Simla, CO 80835 <br />W.W. ENTERPRISES <br />2115 9th Street, P.O. Box 1242, Limon, Colorado 80828 (719) 775 -93I4 <br />RE: Test Results of the samples delivered from the Simla Highway Pit in Section 10, <br />T. 11 S., R. 60 W., El Paso County, Colorado. <br />Dear Henry; <br />This letter is to follow-up our laboratory testing for the delivered pit samples. <br />Soils classifications (gradations and Atterberg Limits) and standard proctors were done <br />for each of the sample. Listed below are the results of these tests. Copies of the Standard <br />Proctor Curves are also attached with this letter. <br />Sample Sieve % Passing <br />Middle of Pit 3 /4" 100 <br />3/8" 99 <br />4 92 <br />8 76 <br />10 71 <br />40 31 <br />100 20 <br />200 18 <br />Liquid Limit (LL) = 27 Plasticity Index (PI) =10 <br />Soils Classification Clayey Sand (SC) (A- 2 -4(0)) <br />Natural Moisture 4.8 % <br />CDOT Classifications met Class 3 <br />Standard Proctor Optimum Dry Density =119.9 pcf <br />Optimum Water Content = 10.3% <br />Consulting Engineering <br />