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3.6. Sample Containers and Preservation <br />Pre -cleaned containers will be supplied by the laboratory and will not be rinsed prior to sample <br />collection. No preservative will be added to the containers. <br />3.7. Disposal of Residual Materials <br />In the process of collecting environmental samples at the Sante Fe Road Disposal Site, the <br />COMB sampling team will generate different types of potentially contaminated investigation - <br />derived waste (IDW) that may include: <br />■ Used personal protective equipment (PPE) <br />■ Disposable sampling equipment <br />■ Decontamination fluids <br />The U.S. EPA's National Contingency Plan requires management of IDW generated during <br />sampling comply with all applicable or relevant and appropriate requirements to the extent <br />practicable. The IDW will contain minor residual amount of the soil/burn ash. These wastes are <br />not considered hazardous and will be disposed of at a municipal landfill. Used PPE and <br />disposable equipment will be double bagged and placed in municipal refuse dumpster. Any <br />PPE and disposable equipment that is to be disposed of which can still be used will be rendered <br />inoperable before disposal. Decontamination fluids that will be generated during sampling will <br />consist of nitric acid, deionized water, residual contaminants, and water with non -phosphate <br />detergent. The volume and concentration of the decontamination fluid will be sufficiently low to <br />allow disposal at the site or sampling area. This minimal volume of decontamination fluid will be <br />disposed of to the sanitary sewer system. <br />If hazardous or radioactive material are found during sampling screening activities, appropriate <br />level of notification and response procedures will be implemented in accordance with the Site <br />Specific Health and Safety Plan. <br />3.8. Analytes of Concern <br />Analytes of concern at this site are residual heavy metals from burning solid waste and any <br />unburned organic materials left in the soil matrix. <br />3.9. Analytical Procedures <br />Each sample container's headspace will be tested using the GMI 422 Gas Surveyor. After field <br />screening the sample containers will be capped, sealed and labeled (see packaging procedures), <br />and sent to CIWMB's contract laboratory, ExcelChem, where composite samples will be analyzed for <br />CAM 17 metals, pH, reactivity, ignitability, TPH BTEX/Diesel (EPA Method 602/8020/S015m), <br />organochlorine pesticides/PCBs (EPA Method 608/8080) and WET (to determine if STLC is <br />exceeded). Discrete samples will be analyzed for California Assessment Manual (CAM) 5 metals by <br />the Total Test procedure using EPA Method 6010/7000. Samples with the highest concentrations of <br />lead will also be analyzed for CAM -5 metals using the Waste Extraction Test (WET) procedure (EPA <br />Method 6010) to determine if Soluble Threshold Limit Concentration (STLC) limits are exceeded. If <br />CIWMB 17 <br />