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3 <br /> test pits and trenches may be adjusted based on field conditions. The types and relative <br /> quantities of materials excavated will be characterized visually, a detailed photographic <br /> record will be compiled, and cover soil thickness will also be recorded. The LEA will be <br /> notified when excavation activities occur to allow them to observe the materials. <br /> Although hazardous materials are not expected to be present, the following contingency <br /> protocol will be in-place should such materials be identified during excavation. Potential <br /> hazardous materials may include, but are not limited to, asbestos, drums containing liquids, <br /> and potentially contaminated soils with visual discoloration, or visual presence of burn ash. <br /> Any indications of the presence of burn ash, odors, staining, discoloration, or contact with <br /> potentially hazardous materials or asbestos, will be recorded. <br /> Excavations will be backfilled with the material removed before the end of the workday. It is <br /> anticipated that the excavation activities will take up to 2 days to complete and the site will <br /> be secured from public access. Water will be used to mitigate dust, if necessary. A <br /> contractor site-specific Health and Safety Plan will be prepared and implemented. <br /> A Final Site Characterization Report documenting the site characterization activities will be <br /> prepared and submitted to the LEA, CalRecycle, and CVRWQCB. <br /> 5.0 CLOSURE <br /> Should you have any questions or require additional clarification, please do not hesitate to <br /> contact me at 909-390-1328 or via email at.mac@swtenF-F.com. <br /> Site Characterization Work Plan SWT Engineering <br /> Z:\PROJECTS\SiteLoglQ\Site Characterization Work Plan\Text\Riverbank_Site Charac.Work Plan_072823.doc <br />