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I. INTRODUCTION Dillon & Murphy was retained by Larey Smith to perform a Soil Suitability Study for the property located at 1 1 665 E. Tokay Colony Road, Lodi, California. The subject parcel number is APN 063-190-16. 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 AL-5. The Smith property consists of a 20 acre parcel (see appendix for map). It is proposed to divide four 5 acre parcels from the existing 20 acre property. There is an existing house on Parcel 1 . The proposed division is being done as a Minor Subdivision to create 3 new parcels. III. PRESENT AND PAST USE OF THE SITE Presently, Parcel 1 has an existing house and row crops. Parcel 2, 3, and 4 have row crops. There is one agricultural well on the site. IV. EXISTING AND PROPOSED SEPTIC TANK USAGE Parcels 2, 3, and 4 will require a septic system when they are developed. I have no knowledge of septic system failure on the property. Parcel 2 has an immediate plan for a house. A septic system and domestic well will be built under permit as part of the homesite construction. V. GROUND WATER AND DEPTH TESTING According to the map of "Lines of Equal Depth of Water Wells" published Fall, 1999, by the San Joaquin County Flood Control and Water Conversation District, the depth to groundwater at this location is approximately 100 feet. (see appendix). VI. SOIL PROFILE AND PERCOLATION TESTS Four test holes were excavated to depths of 3.5 feet on each parcel. The purpose of the test holes was to determine percolation rates in these areas. The holes were prepared in accordance with County Standards. These shallow test holes did not percolate adequately for use as a conventional septic system. 1 C:\0226\Soils Suitability Report 052103