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TranSystems Corporation - LGM Construction

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June 2, 2008<br />

Cooper Testing Laboratory<br />

937 Commercial Street<br />

Palo Alto, CA 94303<br />

Attention: Mr. Peter Jacke<br />

Subject: Site Corrosivity Evaluation<br />

TS Fedex Security Building<br />

Project No. 94240/1<br />

Dear Mr. Jacke,<br />

In accordance with your request, we have reviewed the laboratory soils data for the above<br />

referenced project site. Our evaluation of these results and our corresponding<br />

recommendations for corrosion control for reinforced concrete in contact with these soils<br />

and buried site utilities are presented herein for your consideration.<br />

Soil Chemical Analysis<br />

SOIL TESTING & ANALYSIS<br />

One (1) soil sample from the project site was chemically analyzed for corrosivity by your<br />

laboratory. The sample was analyzed for chloride and sulfate concentration, pH, saturated<br />

resistivity REDOX potential and moisture percentage in accordance with Caltrans<br />

Standards. The test results are presented in Cooper Testing Laboratories Corrosivity Test<br />

Summary dated 5/30/2008. A summary of the results of the chemical analysis is as follows:<br />

Soil Laboratory Analysis<br />

Chemical Analysis Range of Results Corrosion Classification*<br />

Chlorides

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