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15 June 1999 <br /> AGE-NC Project No. 99-0606 <br /> Page 3 of 6 <br /> Soil samples collected from the site during the removal of the UST in 1989 were not submitted for <br /> analysis of fuel oxygenating compounds such as methyl tertiary butyl ether (MTBE). Therefore, <br /> AGE proposes to advance one soil probe boring in the vicinity of the former UST to determine if <br /> petroleum impact is present. Additionally, two borings will be advanced to investigate the former <br /> garage area(presently a warehouse building); one soil boring will be advanced near a suspected dry <br /> well location; one near the eastern side of the excavation; and one in the vicinity of the former truck <br /> repair facility. The proposed probe boring locations are illustrated in Figure 2. <br /> Soil samples will be collected from each probe boring; grab ground water samples will be collected <br /> from selected borings if encountered. Assessment activities will include the following tasks: <br /> • Permitting and pre-field work activities; <br /> • Soil sample collection and analysis; <br /> • Ground water sample collection and analysis, if necessary; <br /> • Report preparation. <br /> 3.1. PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site assessment permits will be obtained from the PHS-EHD. As required by PHS-EHD <br /> permitting, a health and safety plan will be prepared in accordance with Occupational Safety and <br /> Health Guidance Manual for Hazardous Waste Site Activities (National Institute for Occupational <br /> Safety and Health Administration, U.S. Coast Guard and U.S. Environmental Protection Agency, <br /> 1985). Prior to mobilization, each soil probe location will be clearly marked and an utility clearance <br /> obtained through Underground Service Alert. <br /> 3.2. SOIL SAMPLE COLLECTION AND ANALYSIS <br /> Total depth of the probe boring will be based on field observations and field screening using an <br /> organic vapor meter(OVM)equipped with a photo-ionization detector(PID: Thermo Environmental <br /> 580A, 10.0 eV, calibrated to isobutylene). <br /> Soil samples will be collected from the probe boring at five-foot intervals from ground surface to <br /> the total depth of the boring. Field procedures for advancement of probe borings and collection of <br /> soil samples are presented in Sections 4.1 and Section 4.2, respectively. <br /> Selected soil samples will be analyzed by a California Department of Health Services (DHS)- <br /> certified laboratory for the following constituents: <br /> Advanced CeoEnvironmental,Inc. <br />