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'LD Surface and Subsurface Contamination Report******* APN: 2e7-220-t7 **" **Parcel Nos. 1, 2,&3 Soil Character: The University of California publication entitled"Soils of San Joaquin County, California",by Walter W. Weir, dated June 1952, identifies two soils to be on the subject property as San Joaquin Sandy Loam and Madera Sandy Loam. SAN JOA UIN SANDY LOAM The San Joaquin soils are strongly developed hardpan soils and are derived from alluvial deposits now occurring as terraces. They are composed largely of materials of grinitic origin. The term Red Iron Hardpan is commonly used to describe these soils. The soil is brownish-red in color, acid in reaction and usually light to medium textured. Loam and sandy loam types are recognized within the limits of the subject property. To a depth of 9 inches,the soil is reddish-brown in color,hard,easily penetrated by roots and water but bakes hard when dry. The pH is about 5.4 From about 9 to 18 inches the soil is redder and heavier textured. From 18 to 24 inches, there is compact clay with suggestion of a prismatic structure. The clay layer rests abruptly at about 30 inches on a yellowish-brown, iron cemented hardpan. The surface of this layer is very hard and it may vary in thickness from a few to 18 inches or more. Sometimes the hardpan contains a little lime. Below the hardpan,the material becomes hard and stratified. This soil occupies gently sloping terraces with hag-wallow micro relief. After having saturated the topsoil to the clay layer, water will stand on the surface until it evaporates. Erosion is negligible. The native vegetation in this soil is grass and a few shrubs. San Joaquin soils are dry-farmed to grain. The yield is good in favorable rainfall years. Irrigated pasture is grown successfully,.but deep-rooted crops are not desirable. This soil occurs extensively in the eastern part of San Joaquin County. MADERA SANDY LOAM Madera soils are brown or grayish-brown, maturely developed terrace soils derived from mixed but predominately granitic material, They are developed under conditions of low rainfall (9 to 15 inches), mild winter temperatures'and long, hot, dry summers. Tne.T. Thrtrn Tr -----'x0444 Tlrntrn T.sntw-----nAk-lialp-----rsdifnmin 9SIfi1 4