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• 27 November 2001 AGE-NC Project No. 01-0856 Page 3 of 5 The site assessment tasks are discussed below. 3.1. PRE-FIELD WORK PREPARATIONS A health and safety plan will be prepared in accordance with Occupational Safety and Health Guidance Manual for Hazardous Waste Site Activities (National Institute for Occupational Safety and Health Administration, U.S..Coast Guard and U.S. Environmental Protection Agency, 1985). Prior to mobilization,the area of excavation will be clearly marked and a utility clearance obtained through Underground Service Alert.Drilling permits will be obtained from the PHS-EHD,who also will be notified at least 72 hours prior to initiation of field work to schedule grouting inspections. 3.2. SOIL SAMPLE COLLECTION AND ANALYSIS Initially,AGE proposes to advance six soil probe borings using direct push technology and twelve hand auger borings at 17 East Elm Street & 22 East Locust Street to assess for petroleum hydrocarbons,volatile organic compounds,LUFT metals including Zn,Cu,Ni,Cr and Pb and PNAs in soil beneath the site. Based on potential environmental concerns noted during the phase I assessment, AGE proposes probe borings and hand auger borings in the following locations: • Three probe borings located in the alley between the subject property and former auto shop; • Three probe borings and seven hand auger borings located in the area filled with debris (dump area); and • Four hand auger borings located along the adjacent active railroad tracks. Proposed probe boring locations are illustrated in Figure 2. The proposed probe boring locations may be modified due to field observations and/or field conditions.The proposed probe borings will be advanced to approximately 15 feet bsg.The proposed hand auger borings will be advanced to approximately one to five feet bsg. Soil samples will be collected at 5-foot intervals beginning at 5 feet bsg in the proposed probe borings. Soil samples will be collected at 6 inches bsg, 1 foot bsg, 3 feet bsg and at 5 feet bsg in selected hand auger borings. Field procedures for advancement of probe borings and collection of soil samples are presented in Sections 4.1 and 4.2. Selected soil samples from each probe boring will be submitted for laboratory analysis with concurrence of the PHS-EHD. The selected soil samples will be analyzed by a State of California Department of Health Services (DHS)-certified laboratory for the following constituents: Advanced Geo Environmental,Inc.