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Environmental Site Assessment APN 137-31-10, 11, 12, 13. 14. 16,and 17 Page 9 Site history is long and complex, and therefore it is difficult to develop a complete chronology. The information developed concerning the Site places it in a high-risk environmental category with many known, and possibly many unknown, off-site contaminant release locations. In addition, the historical use of portions of the Site as auto parts wrecking yards and laundry (with the possibility that dry cleaning operations were conducted with solvents) increases the risk associated with on-Site sources of contaminants. This complicates the determination of whether any discovered contaminants are from on-Site or off-site sources. The critical question concerning the Site is if any contaminants exist at the Site, and whether any off-site sources of contaminants have migrated via groundwater to impact the site. Potential off- site sources of contaminants should be evaluated by testing up-gradient perimeter of groundwater sampling points. On-Site sources of contaminants should be evaluated by random systematic sampling of soils and Groundwater. The potential contaminants range from the spectrum of hydrocarbons (grease, oil, diesel, and gasoline), to solvents and metals. Additionally, a Geomagnetic survey would also reduce the risk associated with buried tanks, drums, and other metal debris that could act as future sources of contamination while minimizing future surprise discoveries during construction activities. 6.0 RECOMMENDATIONS To lower the risk associated with the site we recommend a Phase II Environmental Site Assessment is performed. This assessment should include at a minimum the following field and analytical work: • On-Site random systematic soil and groundwater sampling Up-gradient perimeter groundwater sampling On-Site geomagnetic survey for buried metallic objects All soil and groundwater samples should be analyzed for: I. Hydrocarbons ranging from grease to gasoline 2. Benzene, Touluene, Ethyl-benzene, and total Xylenes compounds 3. Gasoline oxygenates and additives 4. Volatile and Setnivolatile Organic 5. CAM 17 suite of metals. 6. Poly Aromatic Hydrocarbons 7. Poly Nuclear Aromatics 8. Poly Chlorinated Biphenyls Evaluation of this data should allow a more thorough determination of risk associated with this Site. 7.0 LIMITATIONS The scope of work for this report is intended to provide a limited qualitative review of certain information related to the possible presence of contamination or pollution (recognized environmental condition) at or beneath the Site. Condor performed this environmental assessment in accordance with the guidelines set forth in the ASTM Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process (Designation E-1527-97). This ASTM Phase I ESA is thorough, but is not intended to identify all potential concerns, or to eliminate all risk of the subject property bearing some degree of environmental liability. Condor cannot, and will not warrant or certify that the Site is free of contaminants because it is impossible to know if such a condition exists. Although risks can never be eliminated, more detailed and extensive investigations yield more information. This information may n �� CONDOR