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Fresh Stan Bakeries -Subsurface coil Assessment Work Plan July 18, 1994 <br /> Law/Crandall Project 2703.40538.0031 Final <br /> for analysis. The appropriate Chain-of-Custody documentation will accompany the samples at all <br /> times. <br /> 2.4.3 Decontamination Procedures <br /> The downhole drilling equipment will be steam cleaned prior to use. The sampling equipment and <br /> brass sleeves will be washed prior to use using the standard EPA three bucket wash/rinse. The <br /> sampling equipment will be washed after each sample using a high-pressure, hot-water power wash <br /> system. <br /> 2.5 LABORATORY ANALYSIS <br /> Selected soil samples (based on field observations and PID readings) will be analyzed for suspected <br /> contaminants using appropriate EPA Methods. It is anticipated that at least some of the samples <br /> will be analyzed for volatile organics by EPA Method 8240, for total recoverable hydrocarbons <br /> (TRPH) by EPA Method 418.1, pH by EPA Method 9040 and for heavy metals in accordance-with <br /> California Department of Toxic Substances Control protocol. <br /> For the purpose of developing this work plan, we have assumed the following: <br /> 0 Up to 25 soil samples will be analyzed for TRPH. <br /> • Up to 6 soil samples will be analyzed for volatiles by EPA Method 8240. <br /> • Up to 4 soil samples will be analyzed for metals. <br /> • Up to 4 soil samples will be analyzed for pH. <br /> 2.6 INVESTIGATION DERIVED WASTE DISPOSAL PROCEDURES <br /> Soil cuttings and decontamination water will be stored on-site in DOT-approved 55-gallon drums. <br /> The drums will be labeled with the date, boring number, and depth information. Following the <br /> receipt of laboratory results, arrangements will be made for proper disposal of the soil and water <br /> produced during the assessment. <br /> 6 <br />