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08 May 2014 AGE Project No. 14-2997 Page 2 of 4 2.0. PROCEDURES Petroleum hydrocarbon-impacted soil was excavated and transported off-site based on the laboratory analysis of soil samples collected and field observations noted during UST removal, petroleum hydrocarbon impacts to soil appear to be located east of the former UST area. The proposed interim soil remediation scope of work will include the following tasks: • Pre-field work activities; • Soil excavation and backfilling; • Soil sample collection and analysis; • Soil stockpile sample collection and analysis; • Soil disposal with engineered excavation backfill and; • Report preparation. Each of these tasks is described in greater detail below. 2.1. PRE-FIELD WORK ACTIVITIES 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. 2.2. SOIL EXCAVATION Prior to installation of the new Caltrans roadway, over the site, contaminated soil will be placed near the northern edge of the UST excavation and transported to a licensed landfill facility for disposal (soil can be pre-profiled with a Class II landfill to expedite the soil disposal). Based on the type of contaminant, diesel impacted soil can rapidly be remediated by soil removal and should be justified as future remediation will be limited as the site by the new Caltrans roadway. Based upon laboratory results of soil samples collected during removal procedures, an approximate volume of an additional 100 yards of impacted soil (ten by twenty-five feet wide and seven feet deep) will also be removed from the floor of the excavation and Advanced GeoEnvironmental Inc.