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'1 . Soil Suitability Study—APN: 005- 141 —29—PA-0300587 Parcel No. 1,Approximately 2.0 Acres Total 2.0 Percolation Tests Preparation Protocol: All drilling of test holes on this single parcel property was accomplished on December 12, 2003. An eight(8) inch diameter shallow percolation test hole was excavated with hand-operated equipment and a drill rig under my direction drilled a four(4) inch diameter deep percolation test hole. The shallow percolation test hole was excavated to a maximum depth of thirty-three (33) inches. The deep percolation test hole was drilled to a maximum depth of 17.3 feet below the ground surface and was utilized as both a percolation test hole and a Soil Profile test hole. The percolation test holes were tested after excavating and drilling in between two rainy periods. Two days were required to perform the shallow and deep percolation tests on the subject property. One day was needed to prepare, score the test hole sidewalls and presoak the test hole and was accomplished on December 16, 2003. Water level readings to determine the soil's percolation rate were conducted on December 17, 2003. Presoaking operations consisted of adding two(2) inches of gravel to the bottom of the shallow and deep percolation test holes and adding twelve (12) inches of water to be left in the test holes to soak over-night. 3.0 Percolation Test Conditions, Measurements and Reporting: All percolation tests were performed in conformance with San Joaquin County Development Chapter 9-1105, Section 9-1105.2 and San Joaquin County Environmental Health Department Policy for Percolation Procedure 98-01. The specific test procedures adhered to in performing all of the percolation tests are listed on the "Percolation Test Details" sheets attached to this study and are in conformance with the Environmental Health Department's Policy for Percolation Test Procedure,Policy Number 02-02, effective April 25, 2002. Since the subject property is in a Red-Zone Area established by the San Joaquin County Health Department, both shallow and deep percolation tests were conducted. After preparing and presoaking the test holes, the percolation rates were determined which consisted of noting and recording the amount of sloughing that may have occurred during the over-night soaking process and the amount of water retained in the percolation test holes after the over-night soaking. Water was then applied as needed and the water level drop readings taken at specified intervals to determine the percolation rate of the soil in conformance with the Environmental Health Department's Policy For Percolation Test Procedure Policy No. 02-02 effective April 25, 2002. Procedure 1 was employed in determining the percolation rate for the shallow percolation test hole (S 1). Procedures 2 and 3 were employed in determining the percolation rate for the deep percolation test hole(D 1) The reference point used to determine the final percolation rate for both the shallow and deep percolation test four(4)parcels consisted of the upper edge of a small portion of a lath. The Percolation Test Holes were covered during the overnight soaking For MatriScope Inc.-25655 North State Highway Rte 99,West Frontage Road, Acampo,CA 95220 3