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a <br />Ms. Natalia Subbotnikova <br />July 16, 2010 <br />Page 3 of 4 <br />Bulk inert wastes, such as known construction debris, wheel rims, etc. will be visually characterized as <br />such and will be removed to a Class III landfill. Any ash waste and/or suspected impacted soil will be <br />analyzed for Cam 17 metals, pH, polynuclear aromatic hydrocarbons (PAHs) by EPA Method 8270B, <br />polychlorinated biphenyls (PCBs) by EPA 8080, and total petroleum hydrocarbons by EPA 8015M. <br />An experienced field technician, engineer, or geologist will collect a composite sample from suspected <br />wastes for characterization. The waste will be transported to either Forward Inc. landfill in Stockton <br />(Class II) or Chemwaste Inc. landfill in Kettleman Hills (Class I), dependent upon characterization. <br />Any unknown wastes unearthed during construction (unlabeled drums, etc.) will be cordoned off and <br />tentatively identified and characterized by a licensed Hazardous Waste contractor/transporter. Mr. <br />Palomino anticipates using DelTech Geotechnical Support of Oakdale, California to characterize and <br />dispose of unknown wastes. <br />Site Drainage and Erosion Control <br />Pursuant to Title 27 requirements and in accordance with the final drainage plan, the site will be <br />graded and maintained to prevent ponding and to prevent soil erosion due to high run-off velocities. <br />The drainage and erosion control plan was previously prepared by Delamare & Fulz Engineering. <br />SITE SAFETY <br />Site workers will follow the procedures and general safe work practices outlined in "Section 4.0, <br />General Site Practices and Site Safety" outlined in the September 22, 2004 Workplan for Site <br />Mitigation and the Site Safety Pian previously prepared for the site. Mr. Palomino and his lead site <br />worker have completed the 40 -hour HAZWOPER training course and subsequent annual refreshers, <br />and Mr. Palomino will ensure that this training is up to date prior to initiating field work. <br />Although the California Integrated Waste Management Board (CIWMB) detected no appreciable <br />methane gas during their investigations, a methane gas meter will be utilized during excavation of <br />areas where wastes have been identified or are encountered. Monitoring will be conducted by <br />properly trained personnel using a GasTech Innova SV portable gas meter calibrated to methane. <br />Dust will be controlled through regular application of water using a spray nozzle attached to a <br />sufficient water source (on-site well or water truck) as needed. This precaution will also be employed <br />during the handling of any encountered ash waste and/or suspected impacted soil. <br />