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GEOTECHNICAL <br /> NEIL O. ANDERSON ENVIRONMENTAL <br /> A N D A S S O C I A T E S INSPECTIONS a TESTING <br /> LABORATORY SERVICES <br /> POOL ENGINEERING <br /> POST TENSION DESIGN <br /> December 26, 2007 <br /> Our Project Number: E07219A j� <br /> Ted Tasiopoulos RRECIE ED <br /> San Joaquin County Environmental Health Deartment <br /> 600 East Main Street DEC 2 7 2007 <br /> Stockton, CA 95202 ENVIRONMENT <br /> Subject: Soil Suitability Study <br /> PERMIT/SERVICES HEALTH <br /> Thomsen Farms Vernalis Ranch <br /> 99 Blewett Road <br /> Tracy, California <br /> Report Dated November 9, 2005 <br /> Dear Ted: <br /> At the request of the property owner, NOA has prepared this addendum to the above Soil <br /> Suitability Study (SSS), our project number E0511813. The project involves the division of two <br /> existing parcels into seven new parcels. Since the date of our original report, the proposed <br /> configuration of new parcels has changed. As a result, your office requested that a percolation <br /> test be performed on Parcel 5. The following pages discuss this new percolation test and <br /> present the current proposed parcel configuration. The format of this letter follows that of our <br /> original SSS report. <br /> PERCOLATION TEST INFORMATION <br /> Percolation Test Locations <br /> A site map indicating the location of the new percolation test hole is attached to this letter. <br /> Number of Percolation Tests <br /> One shallow percolation test was conducted on Parcel 5 of the Site. <br /> Boring Preparation and Presaturation <br /> One shallow soil boring was advanced on Parcel 5 of the Site with a hand auger on December <br /> 20, 2007. <br /> A 1.5-inch diameter PVC pipe with perforations on the bottom was used to measure the drop of <br /> water in the percolation test boring. Approximately 2 inches of "pea gravel' were placed in the <br /> ANGELS CAMP • LODI MODESTO RENO • SACRAMENTO WALNUT CREEK <br /> L 0 D 1 902 Industrial Way Lodi,CA 95240 209.367.3701 • FAX 209-369.4228 www.noandersonxom <br />