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Soil Suitability /Nitrate Loading Study Irerracon <br />ALL STAR HEAVY HAUL & TOWING INCORPORATED Tracy, California <br />July 1, 2022 Terracon Project No. NA217024 <br />1.1.2 Proposed Development <br />Based on a review of Site Plan & Typical Building drawing dated July 19"', 2020 prepared by Lorin <br />Nelson F.E., the site is proposed to be improved with an additional septic system. <br />1.1.3 Site Vicinity <br />The northern adjoining property consist of Safeway Distribution Center (26056 Hansen Road). <br />The eastern adjoining property consist of Residence and K9 Development center (26600 Hansen <br />Road and 26666 Hansen Road). The southern adjoining properties consist of the Governor <br />Edmund G Brown California Aqueduct. The western adjoining properties consist of undeveloped <br />land. A detailed vicinity and topographic map are included in Appendix A (Exhibit 1). <br />1.1.4 Site Map <br />A detailed site diagram map is included in Appendix A (Exhibit 2). <br />1.2 Present and Past Uses of the Site <br />1.2.1 Past and Present Site Use <br />Terracon reviewed the USGS topographic maps dated 1907, 1916, 1942, 1943, 1953, 1968, <br />1980, 2015, 2018, 2021 provided by Environmental Risk Information Services (ERIS). Historical <br />aerial photographs dated 1937, 1949, 1957, 1963, 1968, 1974, 1982, 1993, 2003, 2006, 2010, <br />2012, 2014, 2016, 2018, 2020 were provided by ERIS. Aerial photographs dated 1985 through <br />2021 were reviewed on GoogleEarthTM. The following table is a description of the site based on <br />the source. <br />Table 1. <br />Historical Information. <br />Year <br />Source <br />Description <br />1907 <br />Topo <br />Undeveloped land <br />1916 <br />Topo <br />Undeveloped and/or agricultural land. <br />1937 Aerial <br />1942 Topo <br />1943 Topo <br />1949 Aerial <br />1953 Topo <br />1957 Aerial <br />1963 Aerial <br />1968 <br />Topo <br />Developed with two structures at the eastern corner. <br />1968 Aerial <br />1974 Aerial <br />1980 <br />Topo <br />Developed with multiple structures extending from center of property to east <br />corner. <br />1982 Aerial <br />1993 Aerial <br />Responsive ■ Resourceful, ■ Reliable 4 <br />