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x <br /> r_- <br /> Since 7353 <br /> ,s Geotechnical and Environmental Consultants Engineering and Chemical Laboratories <br /> i <br /> November 13, 1990 TL ar790-056-02 <br /> Invoice ;70401 <br /> 1:< For: Dames & Moore <br /> 1320 E. Shaw Avenue, Suite 110 <br /> Fresno, CA 93710 <br /> Project: Tank Excavation and Backfill <br /> Chevron service Station <br /> Hwy 99 and Morada Lane <br /> j Stockton, California <br /> PO. No. 16000-250-44 <br /> 1n <br /> Account No. 114-071 <br /> 1F Subject: Spot Soil Density Tests conducted on the <br /> tank excavation backfill soils. <br /> Dear Mr. Irwin: <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 /> rt "'- The scope of our testing was authorized by Mr. Mike Irwin with <br /> Dames & Moore on October 18, 1990. <br /> l;,; The tests were performed by Val Baroni, Doug Davidson, <br /> Harold Holland, and 'Dennis %,hompson of our Modesto office on <br /> October 19, 22, 23, 24, 25, 26, and 27, 1990. <br /> Project Description: This pro'act consists of the previous <br /> i ' removal `of''. underground storage tanks <br /> and backfill of the resulting <br /> excavation.:. According to Mr. Irwin, <br /> 1 : the excavatf.on measured approximately <br /> 1 60 by 60 feet in plan dimension and was <br /> about 15 feet deep. <br /> Project Specifications: According to Mr. Richard Johnson the <br /> following specifications shall apply: <br /> Uniform Building Code Standard No. <br /> 1 ' <br /> 70-1. A11 fill soils shall be <br /> -. - - <br /> compacted to a minimum of 90 percent of <br /> maximum—densityasTdetermined—by-the <br /> r UBC 70-1. <br /> t-. <br /> s <br /> _ 1 <br /> 401 <br /> t" (r 2527.Fresno Street•P.O.Sox 1472 r Visa <br /> West Goshen Avenue <br /> Visa <br /> Fresno.caldornta 937t6•(209)258.70'27 fia. Caliiornra 93291 ;2941 o5t•2150 <br /> 1405 Granite Lane.Suite 1r 3701 Pegasus❑nve,Suite 124 <br /> w ltaoesta.Cai!ornia 95351 •(2091 523.0944 eaKersfield.California 43348 8051 293-CH <br /> irti <br />