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Work Plan- Site Characterization II Page 5 <br /> Former Karlson Trucking Facility <br /> Project No. 191.2 <br /> December 6, 1999 <br /> sampling devices, horizons of detectable contamination (detected by field <br /> methods), soil classification utilizing the Unified Soil Classification System <br /> and sediment description (color, texture, composition, hardness, moisture <br /> content, and post-depositional changes that have occurred in the sediments). <br /> A PID with a detector lamp capable of ionizing hydrocarbons with a first <br /> ionization potential of less than 10.7 eV may also be used to screen soil <br /> samples. <br /> 2.1.4 Soil Sampling and Analyses <br /> The soil sample collection procedure will be as follows. The end of each <br /> stainless steel tube removed from the split spoon or drive sampler and <br /> possibly submitted for laboratory analysis will be sealed with Teflon squares, <br /> capped with plastic end caps, secured with duct tape, labeled and placed in a <br /> cooler at 4° Celsius for transport to the laboratory using Chain of Custody <br /> protocol. Chain of Custody (CofC) forms are documents used to track the <br /> handling of samples All dates, times, persons and companies handling the <br /> samples will be listed from the time the sample is collected to its ultimate <br /> disposal. All soil sampling equipment will be decontaminated between uses <br /> by washing using a steam cleaner. Nitrile gloves will be worn during sample <br /> collection and changed between the collection of each sample. <br /> All sampling equipment will be thoroughly steam cleaned before and between <br /> uses. Drilling steam clean water will be containerized in appropriate DOT <br /> containers for later recycling by a licensed hazardous waste hauler. Soil <br /> cuttings will likewise be containerized on site until their proper disposal can <br /> be arranged. <br /> It is anticipated that at least one sample taken from the capillary fringe zone <br /> from each boring will be submitted for analysis for diesel/dielectric oil by EPA <br /> method 3540/8015(m) Total Extractable Petroleum Hydrocarbons (TEPH). <br /> The detection limit for this analysis is as follows: <br /> Table: Detection Limits-Soil <br /> Compound TEPH <br /> Detection Limit 5.0 <br /> Units I mg/kg <br /> 2937 Veneman Avenue,Suite B240 Geo-Phase Environmental Inc. Phone: (209)569-0293 <br /> Modesto, Ca 95356 Fax: (209)569-0295 <br />