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Z <br /> KLE/NFELOER <br /> BilgM1lhople.a9f blu Nam. <br /> would prove to be costly, that would have little to no effect on the contaminant plume, and <br /> decreasing trends of contaminants in groundwater that have occurred since 1993. The <br /> SJCEHD subsequently issued an October 31, 2006 letter indicating that no further action was <br /> required. <br /> The former USTs were located approximately 425 feet southwest of the southern portion of <br /> Parcel 3 of the Site, and in a cross-gradient direction with respect to the direction of <br /> groundwater flow. Based on the direction of this facility from the Site and the no further action <br /> status of the facility, it is not considered a REC. A copy of the information reviewed is presented <br /> in Appendix C. <br /> 4.3.7 State Department of Toxic Substances Control <br /> Kleinfelder reviewed the DTSC EnviroStor online database on October 17, 2016 for information <br /> pertaining to the Site and adjoining properties. Neither the Site nor adjoining properties were <br /> listed in the EnviroStor database. A copy of the EnviroStor search results is provided in <br /> Appendix C. <br /> 4.4 PHYSICAL SETTING SOURCE(S) <br /> Table 4-2 presents information concerning the physical setting of the Site. This information was <br /> obtained from published maps. <br /> Table 4-2 <br /> Physical Setting <br /> Data General Information <br /> USGS TOPOGRAPHIC Based on a review of the United States Geological Survey (USGS) <br /> QUADRANGLE Lathrop, California 7.5-Minute Series (Topographic) Quadrangle Map <br /> dated 1996, the Site is located at an approximately elevation of 18 feet <br /> above mean sea level (msl). The topographic relief of the Site is relatively <br /> flat, sloping gently toward the west. <br /> SOIL TYPE The Site is underlain by alluvial fan deposits (Wagner, 1991). Based on <br /> the EDR Radius Map Physical Setting Source Summary of information <br /> obtained from Soil Conservation Service SSURGO data, soil types <br /> beneath the Site consist of: "Veritas' a fine sandy loam, "Honcut' a sandy <br /> loam, and"Tinnin"a loamy coarse sand (EDR, 2016a). <br /> 20172543.001A/ST016R49461 Page 24 of 54 November 2, 2016 <br /> 0 2016 Kleinfelder vvrwi.kleinfelder.com <br />