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• revocable permit have already been issued by the City of Stockton; they are included as EXHIBIT D. The site will be marked and cleared by USA prior to beginning operations . A registered geologist from Wm. J. Hunter & Associates will supervise all drilling, coring, and completion operations . 1 . Mobilize properly licensed auger rig equipped with sufficient clean flights to complete the well without having to decontami- nate equipment . Coring equipment will consist of 2 California modified split--spoon samplers designed to hold 1 1/2" or larger metal sleeves . While one barrel is in service, the other can be cleaned and prepared for use . 2 . Soil samples will be taken at 5 ' bgl & 10 , bgl, or as close to the capillary fringe as possible . The potentiometric surface in December, 1995, was measured at an average depth of 12 .311 , but may be slightly lower at this location . Soil samples will be screened, examined, and preserved using WJH standard field protocol . Drill cuttings and unused core material will be placed in tightly sealed, suitably marked steel drums; they will be stored on site pending results of laboratory analyses . • 3 . After verifying water depth, the augers will be advanced to 25 ' bgl, or 10 ' below water level, whichever is deepest . 4 . After reaching total depth, 211 , blank & slotted flush screw- joint Sch. 40 PVC will be run to bottom; the bottom 20 ' to be . 02011 shop-made slots, and the rest blank. Sand pack will consist of #2 1/2 or #3 graded, washed sand poured down the annulus from the surface . After verifying the top of the sand pack, sufficient bentonite, (pellets or powder, ) will be placed on top of the sand & wetted with water. After verifying the top of the bentonite, the remainder of the annulus will be filled with a thoroughly mixed slurry of cement & bentonite . 5 . The top of the casing will be fitted with a precast Christy- type vault, and a locking traffic cover. The casing will extend into the vault far enough to allow the installation of an expand- able locking casing seal . The north side of the casing will be notched and marked to assist in surveying and water level measurements . Refer to PLATE XII for a generalized schematic of the proposed well completion. 6 . Preserved soil samples will be delivered under chain of custody to a State Certified laboratory with instructions to test for BETX (EPA 8020, ) & TPHg (EPA 8015M, ) using Tri-Regional reporting limits . 0 10