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' HEPWORTH - PAWLAK GEOTECHNICAL, INC. <br />REPORT OF FIELD NUCLEAR DENSITY TESTING <br />1~: ITEC Environmental Colorado, Inc. JOB NO. 298 187 <br />c/o McCulley, Frick & Gilman, Inc. DATE: 8/25/98 <br />' Attn: Jon Friedman DAILY REPORT #2 <br />4900 Pearl East Circe, Suite 300w PAGE 1 of 1 <br />Boulder, CO 80301 <br />s~OJECT: Cash Mine Redevelopment near Gold Hill, CO IRaise existing tailings embankment) <br />ERAL CONTRACTOR: ITEC Environmental Colorado, Inc. <br />T E AND NUMBER OF EARTH MOVING UNITS: 111 Dozer <br />~E & p OF COMPACTION UNITS: (11 Loader <br />HOD OF ADDING MOISTURE: Natural <br />C~PACTION STANDARD : ASTM D-1557 4MODIFIEDI. 90%, 32% OMC <br />EARTHWORK CONTRACTOR: Len's Excavating, <br />THICKNESS OF LIFT: Nat Observed <br />NUMBER OF PASSES: As Needed <br />TEST LOCATION DEPTH LABORATORY FIELD % MIN % SOIL TYPE <br />0. OR COMP COMP <br /> ELEV MAX DflY <br />DENS cl oar <br />MOIST % oar <br />DENS cl MOIST % REQ. <br />4 110' N.E., 40' N.W. 8397 137.1 5.8 131.9 5.9 96 90 Silty Gravelly Sand <br />5 16' N.E., 24' N.W. 8395 127.0 5.9 93 90 Silty Gravelly Sand <br />6 57' S.W., 20' N.W. 8396 126.9 6.2 93 90 Silty Gravelly Sand <br /> <br /> <br />RT TIME OBSERVATION <br />THIS REPORT PRESENTS OPINIONS FORMED AS A RESULT OF OUR OBSERVATIONS OF FILL PLACEMENT, WE HAVE RELIED ON THE <br />NTRACTOR TO CONTINUE APPLYING THE RECOMMENDED COMPACTIVE EFFORT AND MOISTURE TO FILL DURING THE TIMES WHEN OUR <br />~ <br />SERVER 15 NOT OBSERVING OPERATIONS. <br />THE NUCLEAR DENSOMETER METHOD OF TESTING WAS USED IN SUBSTANTIAL ACCORDANCE WITH ASTM D2992 AND D3017 <br />ELIMINARY OBSERVATIONS AND/OR TEST RESULTS VERBALLY REPORTED TO: Len w/Len's Excavating <br />ocRESS REPORT: Tests were taken in the tailings pond embankment fill. All locations were referenced from the power <br />~le. <br />OPIES: <br />' Dave Cassidy Jim Riley <br /> FIELD OBSERVER REVIEWED BY <br /> <br />