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C ` II. SOIL SUITABILITY STUDY FINDINGS k A. SUBJECT PROPERTY AND SURROUNDING STUDY AREA INFORMATION The following information details each of the four Parcels which are illustrated on the attached Site Plan: 3 PARCEL A.P.N. ADDRESS ACREAGE ZONING Parcel 1 252-150-011 26508 S. Banta 2.00 Acres I-W Parcel 2 252-150-012 No Address 3.53 Acres I-W f Parcel 3 252-150-070 26444 S. Banta 3.00 Acres I-W Designated 252-150-010 No Address 174.03 Acres AG-40 Remainder } Parcel 1 is currently developed with a "Butler" type metal building, with all appurtenances such as well, septic, etc. Parcel 2 is half alfalfa and half open field. Parcel 3 has an unoccupied house and an old farm shop. Surrounding land use to the north and east of the project is, and has been, in agricultural production for many decades. This is evidenced by the United States Department of Agriculture (USDA) Soil Maps for San Joaquin County. To the south and west are commercial and industrial facilities and the Tracy Defense Depot. It is unknown if City of Tracy water and sewer will connect to this area. There are approximately ten septic systems surrounding the three subject parcels on Banta Road; however, the housing density is very low between 1111 Street and Linne Road. Directly to the south of the Parcel 2 of the project are the Southern Pacific Railroad tracks. i Applications on file with the County Environmental Health Department reveal that there have been seven permits issued for repairs/additions to existing systems in the one mile radius study :. area, primarily for additional drainage. This can be regarded as a high number of E repairs/additions, and can probably be attributed to severe biomat formation at the effluent/clay interface. B. SOIL PHYSICAL CHARACTERISTICS AND ANALYTICAL TEST RESULTS The project site has'level terrain; consequently, there will be no need to incorporate design considerations for slopes. The United States Department of Agriculture - Soil Conservation ; Service (USDA-SCS) indicates the on-site soils to consist of a Capay Clay (121). This soil unit contains 50% Capay clay which correlates with the soil texture test results (55%). A 9-ft hand boring was completed at the east side of Parcel 1 in the retention basin. This boring was completed in the retention basin so there would be a shorter drilling distance. Although the boring was 9 ft deep, the actual depth from the "true" soil surface was 13 ft since the retention 2 Va&y AB Research i'