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1 01 May 2007 AGE-NC Project No. 07-1516 Page 6 of 39 open water features were noted within a one-mile radius from the subject property. The EDR Report Overview and Detail Maps did not show the subject property located in a 100-year or 500-year Flood Zone. This data, available in select counties across the country, was obtained by EDR in 1999 from the Federal Emergency Management Agency(FEMA);the data depicts 100-year and 500-year flood zones as defined by FEMA. The EDR Report Overview and Detail Maps did not show the subject property listed in the National Wetlands Inventory.This data,available in select counties across the country,was obtained by EDR in 2002 from the U.S. Fish and Wildlife Service. Ground water monitoring data taken in October 2006 as part of an on-going investigation at George's Service, 1600 West Durham Ferry Road, located approximately 800 feet south-southeast from the subject property, noted a shallow depth to ground water of approximately 10 feet below surface grade and a ground water flow direction to the north-northeast.One site map dated May 1992 and prepared by URS Consultants was found by AGE during file review at the San Joaquin County Environmental Health Department (SJCEHD); the map references an August 1989 Former Discharge Area Investigation performed by Weston and shows an approximate ground water flow direction to the northeast. Ground water is considered to be of beneficial use and is utilized for domestic, industrial and commercial purposes. 3.0. SITE HISTORY The objective of consulting historical sources for a Phase I is to develop a history of previous uses of the property and the surrounding area to help identify the likelihood of past uses having led to recognized environmental conditions with respect to the property. All obvious uses shall be identified from the present to the property's first obvious developed use,or back to 1940,whichever is earlier. Review of standard sources at less than five year intervals is not required. The history of the subject site from as early as 1915 to present was researched by reviewing historical aerial photographs, topographic maps, directory information, fire department and building department records, oil and gas maps and personal interviews. The property appears to have operated as an agricultural crop dusting service from at least 1949 through 2001,when the operation was closed.According to a 1992 interview with Mr.Dwayne Bots and presented in Section 3.9,the property was owned by Mr. Gene Winey and sold to George Boys and Carl Trinkle in 1955;they operated the business as Trinkle and Boys Flying Service from 1955 to 1982,when the property was sold to their sons Dwayne Boys and Eric Trinkle.Multiple abatement violations were issued for weeds and trash in 2002 and all structures were removed in 2006 except .� Advanced GeoEnvironmental,Inc.