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II. GEOPROBE ADVANCING OF SOIL BORINGS AND COLLECTION OF SOIL SAMPLES <br /> 1. Prior to the commencement of soil boring activities at the site, boring locations were marked <br /> on the ground with white paint. Underground Service Alert (USA) was contacted to identify <br /> ' underground utilities in the vicinity of the soil borings. <br /> 2. A State of California-licensed drilling company conducted soil boring and sampling activities. <br /> The soil borings were advanced using the Geoprobe direct push method. Flush-threaded <br /> rods with a stainless steel sampler were advanced into the ground using a hydraulic press <br /> and percussion hammer. <br /> ' 3. Soil samples were collected using a 4-foot long, 2-inch inside diameter, macro-core <br /> stainless steel sampler. Soil samplers were washed between borings with Alconox soap <br /> followed by two deionized water rinses. The sampler was lined with clean acetate sleeves. <br /> 4. After the sampler was retrieved, the sleeves were extracted from the sampler without <br /> disturbing the sample. <br /> ' 5. Boring logs were prepared under the supervision of a California-Registered Geologist. Soil <br /> from each sample was described in accordance with Unified Soil Classification System by a <br /> PSI geologist and recorded on a field-boring log. The data recorded on the logs were <br /> ' based on examination of soil samples retrieved in the tubes, and drilling conditions <br /> observed in the field. Boring logs include information regarding the location of each boring, <br /> geologic descriptions of materials encountered, occurrence of groundwater and organic <br /> ' vapor analyzer(OVA) measurements of the soil samples collected (if applicable). <br /> III FIELD DOCUMENTATION OF SAMPLING PROCEDURES <br /> The following outline describes the procedures followed by PSI for proper sampling <br /> ' documentation. <br /> 1. Sampling procedures were documented in field notes that will contain: <br /> 1. Sample collection procedures <br /> 2. Date and time of collection <br /> 3. Date of shipping <br /> 4. Sample collection location <br /> 5. Sample identification number(s) <br /> 6. Intended analysis <br /> 7. Quality control samples <br /> & Sample preservation <br /> 9. Name of sampler <br /> 10. Any pertinent observations <br /> F Mansfer7emplate\Field Procedures\Hollowstem workplan <br />