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I. INTRODUCTION Dillon & Murphy was retained by Ray Butler to perform a soil suitability study for the Butler property located at 550 N. Hewitt Road, Linden, CA. The subject parcel number is APN 093-03-45. The purpose of the study is to determine the suitability of the property for septic tank usage as required by the County. The study was performed according to the requirements of Section 10100 of San Joaquin County Development Code. II. PROPOSED DEVELOPMENT The property is currently zoned Rural Residential. The Butler property consists of a 31.07 acre parcel (see appendix for map). It is proposed to divide one 2.38 acre parcel, one 2.98 acre parcel and one 2.67 acre parcel from the existing 31.07 acre property. There is an existing home on Parcel 1, Parcel 3 and Parcel 4. The proposed split is being done as a Minor Subdivision to create 3 new parcels. III. PRESENT AND PAST USE OF THE SITE Presently, Parcel 2 is pasture. Parcels 1. 3 and 4 are homesites. IV. EXISTING AND PROPOSED SEPTIC TANK USAGE There is an existing septic system located on the three homesite parcels. There is no record of septic system failure. V. GROUND WATER AND DEPTH TESTING According to the map of "Lines of Equal Depth of Water in Wells" published Fall, 1990, by the San Joaquin County Flood Control and Water Conversation District, the depth to groundwater at this location is approximately 140 feet. VI. SOIL PROFILE AND PERCOLATION TESTS Four test holes were excavated to depths of 3.0 feet in the areas of the homesites. The purpose of the test holes was to determine percolation rates in these areas. For approximate locations of the test holes, see the Tentative Parcel Map in the Appendix. The holes were _ prepared in accordance with County Standards. Generally the surface soils consisted of a clay and hard pan. As shallow percolation tests proved adequate for conventional septic systems, no further soil exploration was necessary. 1