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C'60"gica[Technics Inc. Page 7 Rehrig Pacific Inc. b ' Phase II ESA Report Project No.: 709.2 January 4, 1999 • Paint Shed—trace concentrations of xylene inroundwate • Trash Compactor—moderate concentrations of motor oil @ 1 ft ' • Former Storage Area—elevated concentration of motor oil in groundwater samples • Warehouse—elevated concentration of diesel and moderate concentration of motor oil @loft 2. Of the seven areas that contain contamination, it is concluded that only two are of concern and should be investigated further: • Former Storage Area— ' ❑ most of the soil had been cleaned up in 1995 ❑ groundwater contamination was not addressed ❑ the extent of groundwater contamination has not been determined • Warehouse ❑ the sources of the diesel and motor oil are not known ❑ the extent of the soil contamination is not known ❑ the extent to which groundwater may be impacted is not known ' 3. It is concluded that the other five areas that contain trace levels of contamination are not of concern and further investigation is not recommended Recommendations ' Given the conclusions listed above, Geological Technics Inc. makes the following recommendations: • Former Storage & Cleaning Area ❑ perform additional soil and groundwater investigation in this area ❑ the purpose is to investigate the extent of soil and groundwater contamination • Warehouse ❑ perform additional soil and groundwater investigation in this area ' ❑ the purpose is to determine the source of this contamination and to investigate the extent of soil and groundwater contamination ' 5.0 LIMITATIONS This report was prepared in accordance with the accepted standards and practices of the field of environmental geology, groundwater hydrology and good business practices. It should be recognized that definition and evaluation of environmental conditions is adifficult and inexact science. Judgments leading to conclusions and recommendations are generally made ' with an incomplete knowledge of the site-specific conditions present. The tasks proposed and completed during this project were reviewed and approved by the ' local regulatory agency for compliance with the law. No warranty, expressed or implied, is made.