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F <br /> } <br /> } Since 1825 <br /> Geotechnical and Environmental Consuitanis • <br /> Engineering and Chemical E.aboratories <br /> November 13, 1990 <br /> TL X790-056-02 <br /> Invoice #70801 <br /> 1 <br /> 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 /> Stockton, California <br /> P0. No. 16000-250-44 <br /> Account No. 114-071 <br /> �• Subject: <br /> 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 they <br /> in-place density tests conducted on the backfill soils placed in <br /> the tank.removal excavation at the above referenced location. <br /> _# <br /> The scope of -our testin4 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 /> w October 19, 22, 23, 24, 25, 26, and 27, 1990. <br /> -- Project Description: This project consists of the <br /> vious <br /> removal of underground storagetanksand backfill of the resulting <br /> excavation. According to Mr. Irwin, <br /> the excavation measured approximately <br /> 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 /> 70-1. All fill soils shall be <br /> compacted .to..a_m <br /> . znirnum .of 90 percent .o.f. <br /> maximum density as determined by the <br /> UBC 70--1. <br /> C 2547 Fresno Street •RO.Box 1472 - <br /> Fresnc,California 93715 •(209)268-7021 = 9401 West Goshen Avenue <br /> Visalia. Caiaornsa 93291 • (2091 551-?;20. . - - - <br /> ,r,= 1405 Granite Lane.Suite 1 - - <br /> Moceso.Cai,lornia 95351 •(2091 523.099 = 3701 Pegasus olive,suite 124 <br /> 9a.erssela-Caldorn a 93308•18C9.__:-=-=: <br />