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I. INTRODUCTION Dillon & Murphy was retained by Chester Murnhy to perform a soil suitability study for the Murphy property located at 27400 E. FL.nck Road, Farmington, CA. The subject parcel number is APN 187-310-08. The purpose of the study is -o determine the suitability of the property for septic tank usage as well as testing the groundwater for certain chemicals 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 AG-40. The Murphy property consists of a 55.93 acre parcel (see appendix for map). It is proposed to create a 2-acre omesite parcel in the southwest corner of the 55.93 acre property. There is an existirlj home on the parcel being created. The proposed division is being done as a Minor Subdivision to separate the existing homesite from the rest of the farm. III. PRESENT AND PAST USE OF THE SITE Presently, Parcel 1 is a homesite and remainder parcel is farmland. This s the historical use of the land. IV. EXISTING AND PROPOSED SEPTIC TANK USAGE There is an existing septic system located on the homesite parcel. There is ro septic system located on remainder parcel. Any future homesite on the remainder would require a septic system. V. GROUND WATER AND DEPTH TESTING According to the map of "Lines of Equal Depth to Water Wells" published fall, 1990, by the San Joaquin County Flood Control and Water Conservation District, the depth to groundwater at this location is approximately 140 feet. (See the appendix for the ground water gradient.) There is an existing well on Parcel 1 as shown in the appendix. This weil has been tested for DBCP and nitrates (see appendix for results). VI. SOIL PROFILE AND PERCOLATION TESTS Two test holes were excavated to depths of 3.0 feet in the areas of the existing homesite and remainder parcel. The purpose of the test holes was to determine percolation rates in these areas. For approximate locations of the test holes, see the Percolation Rate Worksheet in the Appendix. 1-.)les were prepared in accordance with County Standards. 1