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REPORT OF SLURRY WALL TEST <br />Report Number: 25045300.0001 <br />Service Date: October 18, 2006 <br />lf~rr~con <br />10625 West I-70 Frontage Road North <br />Wheat Ridge, Colorado 80033 <br />(303) 423-3300 <br />Attn: Tyler Packard <br />188 Inverness Drive West <br />Ste 150 <br />Englewood CO 80112 <br />Services: <br />Report Date: November 07, 2006 <br />Project: Saint Vrain Site Slurry Wall <br />I-25 Froritage Rd & County Rd 28 <br />Longmont, CO <br />Project No.: 25045300 <br />Terracon arrived on-site to observe slurry wall construction operations. Field activities included <br />sampling of bentonite slurry, and pertorming viscosity, unit weight, and sand content by volume <br />testing at the mixirig pond located at station 107+DO and at the trench at station 8+20. Soil <br />bentonite backfill was tested at the trench at station 8+20 for slump and unit weight Afternoon <br />activities incuded observation of the crew mixing the soil bentonite backfill before placement into <br />the open trench. Morning and afternoon trench depth measurements were recorded. Completed trench <br />length for the day was from station 8+00 through 9+40. Test results and measurements are presented <br />on the attached report. <br />• Weather. Sunny & Warm Temperature: 65 <br />Terracon Rep: Timothy M. Zieschang <br />Report DisVibution: <br />h)• <br />Reviewed by '~' ' "-" ' <br />Raymond L. Denton <br />The tests were performed In general accordance with applicable ASTM, AASHTO, or D07 test methods. This report is axGusivety for the use of the client <br />indicated above end shall not be reproduced except in full without the written consent of our company. Test results transmitted herein are onty applicable <br />to the actual samples tested at the location(s) referenced and are not necessartty IndicatNe of the properties of other apparengy similar or identical <br />materials. <br />Page 1 of 1 ww,..~....n <br />