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ffwe Te�T 627 Sheridan Boulevard • Lakewood, CO 80214 <br /> P: 303.975.9959 • F:303.975,9969 <br /> office@westest.net • www.westest.net <br /> November 22, 2019 <br /> BURNCO Colorado <br /> 455 W. 1151h Avenue, Unit 1 <br /> Northglenn, CO 80234 <br /> Attention: Mr. Steve Heinrich <br /> Subject: Laboratory Test Results <br /> Church McKay Pit Aggregate Tests <br /> ASTM & AASHTO Size No. 57/67 Coarse Aggregate <br /> ASTM & AASHTO Size No. 467 Coarse Aggregate <br /> WesTest Project No. 673819 <br /> Gentlemen: <br /> Enclosed on Tables 1 and 2 are the results of aggregate physical property and quality tests, done <br /> in general accordance with ASTM and AASHTO criteria, on concrete aggregate sampled from <br /> the above-referenced source on October 3, 2019. <br /> The test results indicate the material meets ASTM C33, Standard Specification for Concrete <br /> Aggregates, AASHTO M 80, Standard Specification for Coarse Aggregate for Hydraulic <br /> Cement Concrete and Colorado Department of Transportation requirements for the properties <br /> tested. <br /> If you have any questions on the data presented, please contact us at your convenience. <br /> Sincerely, Reviewed by: <br /> WesTest SAD <br /> H <br /> Grace Casey, EI •Q 49996 m; Dylan A. Hullinger, P.E. <br /> NAL <br /> CC: Shawn Simmerman and Bob Schumann <br /> AASH O <br /> ♦ccn[oir•o <br />