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Soil sampling Protocol <br /> 1. Sample Collection During Drilling Activities <br /> A proposal will be submitted to the lead Regulatory Authority <br /> with proposed boring/sampling locations. The exact location <br /> and number of borings at each site will be determined in the <br /> field by the Project Geologist/Engineer. <br /> Prior to arriving at the sample site, the drill rig/augers <br /> and all sample equipment will be steam cleaned. Cleaning will <br /> be conducted on-site on all sampling equipment between each <br /> sample interval. <br /> Soil samples will be obtained using a California modified <br /> split-spoon samplers containing three, six inch long, two <br /> inch diameter brass tubes. The sampler will be driven 18 <br /> inches ahead of the hollow stem auger by a 140 pound hammer <br /> with a 30 inch drop in accordance with American Society for <br /> Testing and Materials (ASTM) Methods D 1586-84 for split <br /> barrel sampling of soil and D 1587-83 for thin-walled tube <br /> sampling of soils. The blows required to drive the sampler <br /> each six inch interval will be recorded on the boring log. <br /> The sampler will be removed from the boring and opened to <br /> reveal the brass tubes. The bottom tube will be capped with <br /> aluminum foil and plastic end caps, taped and labeled with <br /> the following information: date, time, project ID, sample <br /> ID, name of sampler and type of analysis. This sample will <br /> be immediately placed into a cooler containing dry ice or <br /> frozen "blue ice" sealed in plastic bags. The samples will <br /> be delivered to a state certified laboratory under chain-of- <br /> custody protocol within 48 hours of sampling, or whenever <br /> possible. <br /> Soil in the uppermost brass tube will be described according <br /> to ASTM standard practice for description and identification <br /> Of soils (ASTM D-2488 -84 ) . Stratigraphic and other <br /> data/interpretations will also be recorded. Soil properties <br /> will also be noted for the sample collected from the middle <br /> brass tube and from the sampler shoe. Alternatively, the <br /> second sample tube may be used with the uppermost tube for <br /> preparation of duplicates. Sample selection will be noted on <br /> a log prepared for each boring/well. <br /> Soil samples will be continuously collected from the surface <br /> to the bottom of the boring. Soil borings will extend <br /> through the entire interval of contaminated soil and will <br /> terminate if the water table is encountered. <br />