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NEIL O. AN'-%RSON & ASSOCIATES, INC. ~e <br />GEOTECHNICAL SERVICES • ENGINEERING LABORATORIES 22 Houston Lane <br />May 26, 1999 <br />Job Number SN -110 <br />Mr. Dick Burge <br />K.E. Curtis Construction <br />11338 S. Harlan Road <br />Lathrop, CA 95330 <br />Subject: Shell Station, Old Fuel Tank Backfill <br />1313 Charter Way <br />Stockton, California <br />Dear Mr. Burge: <br />Lodi, California 95240 <br />Lodi(209)367-3701 <br />FAX: (209) 333-8303 <br />Mg y `'1 v <br />9 Ig99 <br />RECEIVED <br />JUL 0 7 1999 <br />ENVIRONMENTAL HEALTH <br />PERMIT / SERVICES <br />This report presents the results of the compaction and field density tests performed on the old fuel tank <br />backfill at the subject project. ASTM D 1557 Compaction tests were conducted on samples of the fill. The <br />results of these tests are presented next. <br />SITE VISIT/OBSERVATIONS <br />Date <br />Representative <br />Time <br />Mileage <br />5-17-99 <br />T. Schiess <br />1 hour <br />37 miles <br />SUMMARY OF ON-SITE OBSERVATIONS: Picked up proctor sample. <br />ASTM D1557 COMPACTION TEST RESULTS <br />Material <br />Maximum Dry Density <br />pef <br />Optimum Moisture Content <br />% <br />3/4" Class II aggregate base <br />136.8 <br />6.5 <br />FIELD DENSITY TESTING <br />Date <br />Representative <br />Time <br />Mileage <br />5-17-99 <br />M. Cozad <br />3 hours <br />55 miles <br />5-18-99 <br />M. Cozad <br />2.5 hours <br />60 miles <br />5-19-99 <br />M. Cozad <br />2 hours <br />30 miles <br />5-20-99 <br />M. Cozad <br />2 hours <br />30 miles <br />The field density tests were performed per ASTM D2922 and D3017. The results of the field density <br />tests are presented next. <br />