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FIELD PROCEDURES <br /> The following section describes field procedures that were completed by Delta personnel in the <br /> performance of the tasks involved with this project. <br /> 1.0 HEALTH AND SAFETY PLAN <br /> Fieldwork performed by Delta and subcontractors at the site was conducted according to guidelines <br /> established in a Site Health and Safety Plan (SHSP). The SHSP is a document describes the hazards that <br /> may be encountered in the field and specifies protective equipment, work procedures, and emergency <br /> information. A copy of the SHSP was at the site and available for reference by appropriate parties during <br /> work at the site. <br /> 2.0 LOCATING UNDERGROUND UTILITIES <br /> Prior to commencement of work on site, Delta researched the location of all underground utilities with <br /> the assistance of Underground Service Alert (USA). USA contacted the owners of the various utilities <br /> in the vicinity of the site to have the utility owners mark the locations of their underground utilities. <br /> Work associated with the boring and monitoring well installation was preceded by manual hand augering <br /> to a minimum depth of 5 feet below grade to avoid contact with underground fuel distribution and vent <br /> lines and other unmarked utilities. <br /> 3.0 SOIL BORING AND SOIL SAMPLING PROTOCOL <br /> Soil borings and soil sampling was performed under the supervision of a Delta geologist. The soil <br /> borings were advanced using a truck-mounted hollow-stem auger drilling rig. <br /> To reduce the chances of cross-contamination between boreholes, all downhole drilling equipment was <br /> steam-cleaned between each boring. To reduce cross-contamination between samples, the split-barrel <br /> sampler was washed in a soap solution and double-rinsed between each sampling event. <br /> Soil sampling was conducted in accordance with ASTM 1586-84. Using this procedure, a 2-inch <br /> diameter, split-barrel sampler (California-type sampler) lined with three 2-inch by 6-inch long brass <br /> sample tubes is driven into the soil at approximately 5-foot intervals by a 140-pound weight falling <br /> 30 inches. The number of blow counts required to advance the sample 18 inches was recorded at each <br /> sample interval. <br /> LRP253.TA <br />