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.` GEOTECHNICAL <br /> NEIL O. ANDERSON ENVIRONMENTAL <br /> A N D A $ $ O C A T E $ INSPECTIONS a TESTING <br /> LABORATORY SERVICES <br /> POOL ENGINEERING <br /> — POST TENSION DESIGN <br /> June 5, 2008 <br /> Our Project Number: LGS080521 <br /> Mr. Richard Nassano <br /> PO Box 186 <br /> Linden, CA 95236 <br /> Subject: Percolation Tests for Septic System Disposal Field <br /> 23007 East Copperopolis Road <br /> APN: 093-120-08 <br /> Linden, California 95236 <br /> Dear Mr. Nassano, <br /> Per your request, our office has conducted drilling and percolation testing on three parcels and <br /> the designated remainder at the subject property located at 23007 East Copperopolis Road in <br /> Linden, California. The property is approximately 273.35 acres in size and is presently used for <br /> orchard and pasture. Mr. Joe Murphy of Dillon and Murphy Engineering in Lodi, requested that <br /> our office conduct a percolation test on each parcel to satisfy a requirement of the <br /> Environmental Health Department for siting new residential septic systems. The percolation <br /> test hole locations are shown on the attached parcel map. This location was determined by you <br /> to be near the site of the proposed septic system leach field. <br /> — <br /> Twenty-five-foot soil borings were drilled on Parcels 6, 7, 8 and the designated remainder using <br /> a truck-mounted deep rock drilling rig with a 4-inch diameter auger on June 2, 2008. Two <br /> shallow holes to a depth of approximately three and a half (3.5) feet were re-drilled on Parcel 5 <br /> and the designated remainder on June 5, 2008 using a 4-inch diameter hand auger. Please see <br /> Table 5 for more details regarding the percolation test holes. No groundwater was encountered <br /> in any of the test borings. Please see the following tables for information regarding the soils <br /> encountered in each boring. <br /> Table i <br /> Soil Boring Log, Parcel 5 <br /> Depth Interval (ft) Soil Type Unified Soil Classification <br /> 1-3 Light brown silty sand with SM <br /> some gravel <br /> 3-7 Light brown sandy clay SC <br /> 7-13 Reddish brown clayey sand SC <br /> with some gravel <br /> 13-25 Dark brown clayey sand SC <br /> ANGELS CAMP • LODI MODESTO • RENO • SACRAMENTO • WALNUT CREEK <br /> L O D I 902 Industrial Way Lodi,CA 95240 • 209.367.3701 • FAX 209-3694228 • www.noanderson.com <br />