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F Inc. Environmental and Engineering Group Post Office Box 427 Oakdale, CA 95361 Office: (209) 848-4280 Fax: (209) 848-4282 I Mr. Earl Van Bebber February 23, 1996 ' 2447 Altoga Avenue Tracv, Ca. 95376-2112 RE: Phase H- Report of Findings #3 Dear Mr. Van Bebbec On November 16, 1995 the floor of the shallow excavation was deepened to approximately five (5) feet below ground level (h.g.a.). This was excavated, as recommended in the prior report. "Phase II- Report u; 10, 19.95, in order to remove residual concentrations of Motor i'lil mid or t:he elevated Motor Oil detections identified in the above referenced rep;;rt. All excavating, equipment was conducted and managed by fIKM Groundwater(IIKNt, Atter the initial removal of 43 cubic yards (c.y.) of soil on October 16, 1995, an additional 78 c.y. of soil were removed and stockpiled directly adjacent on the north and east side of the vacant lot (Figure 2). .A total of - 121 c.y. of contaminated soil was removed and stockpiled on, and irrnnediately covered with, visqueen. Five(5) soil samples, one sample per each 25 cubic yards, in compliance with San Joaquin County Environmental health Department (SJC-EH )) regulations; were taken to characterize the soils for hazardous waste disposal (Table 1). An additional composite sampling for TTLC Metals analysis was required by Forward Landfill prior to disposal of the soils (Table 1 under TTLC Comp.). The property parcel is located on the southern side of the vacant lot located at 2480 N. Tracy Blvd., Tracy, California (APN: 214-049-2), see Figures 1, 7 and 3. I' Prior Work On September 28, 1995, two separate hand borings, fill- 1@19" and HB-2@10", were conducted to a depth ofnine(9) and ten (l0)inches b.g.l., respectively. This was done to identify any detectable concentrations of BTEX (Benzene, Tohterre, I'ilryl Benzene, and