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Shea Homes- Northern California Langston II 4943.009.007 Phase I Environmental Site Assessment TABLE 3.2.1-1: Historical Review Summary HISTORIC . • Topographic Maps 1914, 1916,1940,1942, 1943, 1952,1953 1968, 1978, 1980, 2012 1937, 1940,1957, 1963, 1966, 1975, Aerial Photographs 1979, 1982, 1993, 1998, 2006, 2009, 2012, 2016 Sanborn Maps N/A Historic topographic maps from 1914 to 1943 indicate that the Property was undeveloped. Mountain House Creek is north of the Property, trending southwest to northeast. The Alameda-San Joaquin County boundary is shown west of the Property. Surrounding properties contain few residences. The Property remains unchanged from 1952 to 1968, with the exception of a pipeline shown crossing the northeast corner of the Property. The pipeline is no longer shown in in the 1978 map. The Property remained unchanged in the 2012 map, though residential development is shown to the north. Aerial photography from 1937 to 2009 show the Property remained undeveloped and utilized for agricultural purposes. It appears that row crops were the primary agricultural focus. Residences are visible nearby. Between 2009 and 2012, the Property remained unchanged, though it appears that grading activities had taken place to the west, and a residential community is shown to the north. In 2016, the Property appears to be sheet graded, as does the adjoining properties. A detention basin is visible to the south of the Property. Additional residences are visible to the northwest and a school to the north. VL lopq 3.2.2 City Directory City Directories, published since the 18th century for major towns and cities, list the name of the resident or business associated with each address. Listings for South Central Parkway are mainly associated with rural residential uses. The City Directory report is presented in Appendix E. 3.3 ENVIRONMENTAL RECORD SOURCES EDR performed a search of federal, tribal, state, and local databases regarding the Property and nearby properties. Details regarding the databases searched by EDR are provided in Appendix A. A list of the facilities documented by EDR within the approximate minimum search distance of the Property is provided below. 3.3.1 Environmental Records 3.3.1.1 Subject Property The Property is not listed on Environmental Record source databases. 3.3.1.2 Other Properties The following databases include facilities listed within the appropriate ASTM search distances of the Property on Environmental Records sources. ENGEOJuly 2, 2020 Expect Excellence