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Site Specific Health, Safety and Environmental Plan <br /> 5 <br /> <br />3.0 Scope of Work <br /> <br />3.1 SLR and Subcontractor Work Tasks <br />Brief description of work scope: <br />The scope of work is presented as a tiered approach for supplemental site characterization. Tier I includes <br />conducting a closed-circuit television (CCTV) inspection of the sewer line from the dry cleaner to the sewer <br />alignment in the alley and then along the alignment in the alley to identify any potential damaged/cracked <br />areas that would indicate potential source areas for contamination to soil/groundwater. Tier I also includes <br />the use a semi-quantitative, field-screening device known as a Membrane Interface and Hydraulic Profiling <br />Tool (MiHPT) probe that can detect VOCs and some SVOCs in the vadose and saturated zones. Ten soil <br />borings will be advanced to a maximum depth of 25 ft bgs utilizing a MiHPT probe to determine the extent <br />of VOC impacts in soil, soil vapor, and groundwater. Following the MiHPT investigation, three temporary, <br />dual-nested soil vapor probes will be installed at 5 and 10 ft bgs,with tubing for air sampling at each <br />boring.. Additionally, four sub slab vapor monitoring points (Vapor Pins®) will be installed. Soil gas samples <br />will be collected from the temporary soil vapor probes and the sub slab vapor monitoring points, and <br />analyzed for VOCs by EPA Method TO-15. Following completion of the sampling, the temporary borings <br />will be drilled out, sealed and abandoned with neat cement according to San Joaquin County Department <br />of Environmentla Health standards. <br />Based on the results of Tier I, SLR proposes to conduct indoor and outdoor air sampling as part of Tier II. <br />The tasks and sampling locations defined in Tier II will be adjusted based on the results of Tier I <br /> <br />Does this project involve ground disturbance activities? Yes ☒ No ☐ <br />If “Yes”, be sure to fill out the SLR utility clearance log and ground disturbance checklist (see Appendix A) <br />Does this project involve a SLR Subcontractor(s)? Yes ☒ No ☐ <br />If “Yes”, provide a description of their work scope(s): <br /> <br />Enprobe will handle all coring, drilling operations, probe enplacements, and sample retrieval for soil and <br />groundwater sampling. <br /> <br />Is the subcontractor(s) performing “Safety Critical” activities? Yes ☒ No ☐ N/A ☐ <br />If “Yes” have they been pre-approved by HSE Mangement for such work? Yes ☒ No ☐ N/A ☐ <br />Elevated Risk Task List - <br />Select any and all that apply to the planned scope of work (includes SLR’s subcontractor(s) as well):