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4.0 Waste Characterization <br />MEI will perform all field characterization duties. MEI's Standazd Quality Assurance <br />/Quality Control Plan ( QA Plan) outlines proposed sampling protocols (Appendix E). <br />In the event waste is encountered, MEI will determine if the waste is hazazdous, based on <br />the following definition: <br />Hazardous waste will be any material listed as hazardous or which possesses one of the <br />four chazacteristics of a hazazdous waste (ignitability, corrosivity, reactivity or toxicity). <br />Solid waste suspected of containing asbestos will be quazantined and left in place until <br />adequate characterization and disposal options can be determined. <br />4.1 Analytical Procedures. <br />Potential constituents of concern in the gravel mining area include a variety of <br />hydrocazbon compounds (e.g., BTEX and other volatile organic compounds), semi- <br />volatile organic compounds, MTBE and RCRA metals. <br />All samples will be collected and handled (properly labeled, packaged and submitted for <br />laboratory analysis in accordance with MEI s QA Plan. Samples will be analyzed, as <br />necessary, for TPH by US Environmental Protection Agency ( EPA) Method 8015M; <br />for BTEX by EPA Method 8021B; for SVOCs by EPA Method 8270; for Path s by EPA <br />Method 8310, and for RCRA metals by EPA Method 6010B/7000 series. <br />4.2 Soil Sampling <br />In the event contamination is encountered or suspected in soils, MEI will evaluate such <br />media for potential environmental impact (using visuaUolfactory observations, PID <br />screening, TPH field meter etc.). If necessary a grab sample will be submitted for <br />laboratory analysis in accordance with the QA Plan and analytical procedures described <br />in Section 4.1. <br />16 <br />