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Kennedy Jenks Consultants r <br /> t . <br /> Section 4: Field Activities l <br /> 4.1 Pre-Field Activities " <br /> Kennedy/Jenks will perform the following activities prior to commencing fieldwork at the Site. n <br /> • Prepare a site-specific Hazard Appraisal and Recognition Plan (attached as Appendix A). '1 <br /> • Obtain well installation permits from San Joaquin County. U <br /> • Survey the proposed boring locations to identify subsurface utilities by performing a utility <br /> clearance check prior to drilling. Kennedy/Jenks will contact Underground Service Alert for n <br /> utility clearance at least two working days before the scheduled fieldwork. In addition, a (j <br /> private subsurface utility locating service will be retained to perform a search for <br /> underground utilities at the proposed drilling locations. Q <br /> • Contract with a C-57 licensed drilling contractor to perform the fieldwork. <br /> • Select a state-certified laboratory to analyze the collected samples. <br /> 4.2 Groundwater Monitoring Well Installation and Well (� <br /> Development LY <br /> Following completion of the pre-field activities, Kennedy/Jenks will oversee the licensed drilling r? <br /> subcontractor during drilling of the subsurface borings for the proposed monitoring wells at the ' <br /> Site. The boring for each well will be drilled using a hollow-stem auger drilling rig. Soil will be <br /> continuously cored using a CME or equivalent system, or continuously cored using a drive <br /> sampler. The soils will be logged under supervision of a California Professional Geologist. [y <br /> Based on a review of available data, the anticipated boring depth is no more than 20 feet bgs <br /> and the wells will be completed with a 10-foot long well screen. <br /> 4.2.1 Well Construction <br /> The boreholes will be converted into completed groundwater monitoring wells in accordance <br /> with Kennedy/Jenks' Standard Operating Guideline (SOG) for Well Construction and <br /> Development (Appendix B). The boreholes will be 8 inches in diameter and the monitoring wells <br /> will be constructed of 2-inch diameter Schedule 40 polyvinyl chloride (PVC) casing. The ' <br /> screened interval will consist of 10 feet of 0.010-inch slotted casing, or other slot size 1 <br /> appropriate for the lithologies encountered based on the Iithologic logs from the soil borings, <br /> with a threaded end cap. Above the screened section, each well will consist of flush-threaded, 1 <br /> 2-inch diameter, Schedule 40 PVC blank casing. A continuous filter pack will be placed in the <br /> annular space between the screened section and the wall-of the boring. The filter pack will <br /> consist of washed packaged sand sized accordingly for the well screen slot size selected <br /> (Lonestar#2/12 or equivalent for 0.010-inch slots). The filter pack will extend upwards from the <br /> bottom of the boring to one to two feet above the screened section. The wells will be <br /> pre-developed after the filter pack is installed, and prior to the bentonite seal being installed. A <br /> Page 10 Monitoring Well Installation Work Plan <br /> Sutter Home Winery, Lodi, California <br /> 9:YS.gmupWmin4o0%08N M0504_sullerhweWgreppMA jWall wrk pinVxtkc <br />