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3 . <br /> EXISTING LAND USE <br /> The existing parcel , except for the existing homesite , outbuildings , <br /> and roads , is currently planted in vinyard . Previous usage may <br /> have been grazing land. <br /> SOILS <br /> Soils data was obtained from "SOIL SURVEY OF SAN JOAQUIN COUNTY, <br /> CALIFORNIA" , issued October, 1992 • <br /> Parcel 1 . <br /> The soils map indicates that the soil type for parcel 1 is Ramoth <br /> sandy loam. <br /> Typically, the topsoil is a light brown sandy loam. The subsoil changes <br /> from brown sandy loam to a reddish sandy clay loam to a brown coarse <br /> sandy loam. <br /> Parcel 2 . <br /> The soils map indicates that for parcel 2 the westerly portion is <br /> Ramoth sandy loam and the easterly portion is Kingdon fine sandy <br /> loam. <br /> Kingdon consists of a brown fine sandy loam topsoil with subsoil <br /> consisting of fine sandy loam and sandy loam varying from brown <br /> to gray in color. <br /> CONCLUSIONS <br /> Based on test results and the past performance of the existing <br /> septic system , it is my opinion that the subject property is <br /> suitable for use of the existing or proposed future septic systems . <br /> The maximum depth for dry wells (pits ) is 25 feet per San Joaquin <br /> County ordinance . Since the depth to groundwater is 150± feet based <br /> on San Joaquin County Flood Control District ' s semi-annual groundwater <br /> report, dry wells (PITS) are well above the maximum groundwater <br /> elevation. <br /> Based on this information, the existing and future proposed <br /> systems should not adversly affect the groundwater quality in <br /> the area. <br />