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01 May 2007 <br /> AGE-NC Project No. 07-1516 <br /> ` Page 7 of 39 �J <br /> for one metal hangar building.Agricultural chemicals were stored outside along he no boundary <br /> and the roperty includ un ound storage tanks(USTs)for fueling airplan =cl <br /> r owed 9,wi permits r documentation found,and one 1,000-gall T r <br /> 199 w' out pe its,h we v confirmation sampling was performed.From a 998 <br /> 2 metal w red in the southern portion of the property. At the time of the site <br /> reconnaissance t e property was vacant except for the metal hangar building and the runway. <br /> 3.1 SANBORN FIRE INSURANCE MAPS <br /> ` EDR-Sanborn Inc.was contacted to perform a search of historical Sanborn Fire Insurance Maps with <br /> coverage of the area containing the subject property.Fire insurance maps typically identify structures <br /> from a fire hazard perspective.In addition,these maps identify structures and improvements which <br /> may pose environmental concerns. <br /> ` Sanborn Fire Insurance Maps woe not available for the subject property. <br /> 3.2. AERIAL PHOTOGRAPHS <br /> Developmental history of the subject property and surrounding areas was researched using aerial , <br /> ,. photographs; the following photographs were used in the execution of this Phase I: <br /> Source: EDR <br /> r. <br /> Year Scale Source <br /> 1957 Aerial Photograph Scale: 1"=555' Cartwright <br /> 1963 Aerial Photograph Scale: I"=555' Mark Hurd <br /> v <br /> 1982 Aerial Photograph Scale: 1"=690' WSA <br /> y' 1993 Aerial Photograph Scale: 1"=666' USGS <br /> 1999 Aerial Photograph Scale: 1"=666' USGS <br /> Source: San Joaquin County Community Development GIS: 1994 - 2006 SJCGIS <br /> r. <br /> Advanced GeoEnvironmental,Inc. <br /> r <br />