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Phase I Environmental Site Assessment Neighborhood E Page 2 of harm to public health or the environment and that generally would not be the subject of an enforcement action if brought to the attentions of appropriate governmental agencies. Conditions determined to be de mininzis are not recognized environmental conditions. • The term historical recognized environmental condition means an environmental condition which in the past would have been considered a recognized environmental condition, but which may or may not be considered a recognized environmental condition currently. The goal of this assessment is not to demonstrate that no hazardous materials are present at the Site. The assessment is necessary, however, to complete "...all appropriate inquiry into the previous ownership and uses of the property consistent with good commercial or customary practice" [42 USC § 9601 (35) (B)]. The use of an environmental professional in the performance of this assessment will minimize and manage risk of environmental difficulty, but cannot completely eliminate the risk. 1.2 SCOPE OF WORK 1.2.1 ASTM E 1527-00 Phase I Environmental Site Assessment The typical scope of work for an ASTM E 1527-00 Phase I ESA is described below. The following sections summarize the scope of work that Condor performed for the Phase I ESA. An ASTM Phase II ESA was not included in this scope of work. The results of the Phase I ESA are used to determine the need for,and scope of, a Phase II ESA. 1.2.1.1 Site Reconnaissance Condor conducted a Site reconnaissance and prepared a general description of the Site. Observations were made on the Site, along the periphery of the Site, and in all areas common to the Site and adjacent properties to assess if conditions suggest that hazardous substances are present on, or might migrate to, the Site. Obvious terrain characteristics of concern, such as areas of distressed vegetation, ground stains, landfills, depressions, and/or evidence of any below-grade tanks,were also noted. 1.2.1.2 Review of Site History The history of the Site was reviewed to learn about permits granted or citations issued(including any well and/or underground storage tank permits), prior uses of the Site and properties immediately adjacent to the Site, and local geologic and hydrogeologic data, as appropriate. Topographic maps and reasonably obtainable historical aerial photos were reviewed to assess historical land uses on and near the Site. Where available, Sanborn Fire Insurance Maps were reviewed for the Site. A Site history was obtained from topographic maps, aerial photographs,interviews, and other historical resources. 1.2.1.3 Review of Environmental Records The non-confidential portions of reasonably obtainable and practically reviewable records retained by Federal, State, and local agencies for properties in the vicinity of the Site within an approximate minimum search distance (MSD), that have been investigated and/or inspected, were reviewed for potential environmental liability. The records review included the following,as applicable: I. AST—Aboveground storage tanks as provided by the State Water Resources Control Board. 2. BORDERZONE• Database provided by the Department of Health Services-Land Use and Air Assessment that identifies properties within 2,000 feet of land at which hazardous waste has been deposited, creating a l significant existing or potential hazard to public health and safety. iCONDOR