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r • <br /> f� Since 1898 <br /> t t& <br /> arN'h� UUU <br /> Geotechnical and Environmental Consultants Engineering and Chemical Laboratories <br /> November 13, 1990 TL #790-056-02 <br /> Invoice #70801 <br /> FCnt <br /> For: Dames & Moore <br /> 1320 E. Shaw Avenue, Suite 110 <br /> Fresno, CA 93710 <br /> { <br /> Project: Tank Excavation and Backfill <br /> Chevron Service Station <br /> Hwy 99 and Morada Lane <br /> Stockton, California <br /> PO. No. 16000-250-44 <br /> Account No. 114-071 <br /> Subject: Spot Soil Density Tests conducted on the <br /> ys tank excavation backfill soils. <br /> Dear Mr. Irwin: <br /> k;y <br /> This report presents the individual compaction test results of the <br /> in--place density tests conducted on the backfill soils placed in <br /> the tank removal excavation at the above referenced location. <br /> i <br /> t;. The scope of our testing was authorized by Mr. Mike Irwin with <br /> Dames & Moore on October 18 1990. <br /> The tests were performed by Val Baroni; Doug Davidson, <br /> Harold Holland, and Dennis Thompson of our Modesto office on <br /> October 19, 22, 23, 24, 25, 26, and 27, 1990. <br /> Project Description: This project consists of the previous <br /> removal of underground storage tanks <br /> and backfill of the resulting <br /> excavation. According to Mr. Irwin, <br /> r. , the excavation measured approximately <br /> 60 by 60 feet in plan dimension and was <br /> aboat 15 feet deep. <br /> Project Specifications: According to Mr. Richard Johnson the <br /> following specifications shall apply: <br /> Uniform Building Code Standard No. <br /> 70-1. All fill soils shall be <br /> compacted to a minimum of 90 percent of <br /> maximum density as determined by the <br /> --:r --- - - T - - ---UBC -T0-1 --- - <br /> t , <br /> 2527 Fresno Street+P.O.Box 1472: 9401 West Goshen Avenue <br /> Fresno,California 93716 •(209)262•7021 Visatia, Cafiforma 93291 (209) 561.2190 <br /> 1405 Granite lane.Suite 1 ti 3701 Pegasus Dnve.6u to 124 <br /> Modesto,caoorn a 95351 •(209)523.0994 eaxdrsfieid.Caidornra 93308 • i805,'M- 38 <br /> i <br /> 1 <br /> I <br /> 3 <br /> i <br /> s <br />