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3) MW 10 was installed into the over-excavation clean backfill (pea gravel). The well <br /> is situated in a 3 foot by 3 foot square traffic box, three feet deep. Twelve inch diameter <br /> w - conductor casing is to be driven or sonic casing around the well to the 28 foot depth. The <br /> well is then drilled out, 10 inch auger to the 28 foot depth. A cement seal will be placed <br /> from the 28 foot depth to the 24 foot depth. Pea gravel will then be placed through the <br /> conductor casing as backfill while the conductor/sonic casing is removed. <br /> The buried conduits, two 2 inch PVC laterals, two 1 inch electrical PVC laterals and one 4 inch <br /> PVC conduit servicing well MW10 will be filled with cement and left in place. <br /> SURFACE RESTORATION(Drilling ConhactorJ <br /> Onsite wells MW2, MW3, MW4,MW8A,MWBB and soil gas wells SG 1, SG-2 will be <br /> resurfaced with concrete with color black to match the asphalt surface. <br /> Onsite well MW5 is located in gravel back lot. No resurfacing is necessary,backfilled with clean <br /> road base. <br /> SURFACE RESTORATION(Paving Conhactor) <br /> MW 10 four inch casing will be cut off at the base of the traffic box and the box will be removed. <br /> The void will be backfilled and compacted with clean road base and the surface will be resurfaced <br /> with asphalt. <br /> The underground service laterals to MW-10 will be removed from the 24 inch square <br /> traffic/junction box and the box removed, with the void compacted backfilled with road base and <br /> resurfaced with asphalt. <br /> The surface of the wells destroyed in the San Joaquin County right of way(Country Club Blvd <br /> (MW9A and MW9B)and Mission Street(Soil Gas Wells SG-3, SG-4, SG-5 and monitor wells <br /> MW6A, MW6B,MW7A and MW7B)will be resurface with hot patch asphalt as per San Joaquin <br /> County guidelines, see attached "Typical Trench Backfill". <br /> REMEDIATION SYS7EMAND LATERALS(Drilling Coghactor) <br /> All above ground remediation equipment have been removed for disposal or reuse. The below <br /> ground PVC pipe laterals that remain will be backfilled with neat cement and left in place. <br /> 2 Sanchez Well Destruction RFB <br /> II <br /> I <br />