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J <br /> "� <br /> J <br /> Ms. Diane Hinson <br /> 202/150-4150 <br /> March 29, 1989 <br /> Page 2 <br /> 1. Texaco would drill, log and sample (5-foot intervals) <br /> soil borings (SB) 1, 2, and 3, in the vicinity of the <br /> removed product dispensers (see Figure 1) . These: <br /> barings will be used first, tc determine the extent of <br /> soil contamination; second, the depth to groundwater; <br /> and third, the angle needed to adequately drill and <br /> sample beneath the canopy (the angle is not to exceed <br /> 45 degrees off vertical, for safety reasons) . <br /> 2. Drill, log and sample angle borings (AB) 1, 2, and 3 to <br /> determine the extent of subsurface contamination below <br /> the canopy. <br /> 3. Texaco reserves the right to drill additional borings, <br /> as needed, to determine the extent- of hydrocarbon <br /> contami�iation. <br /> 4. urill and install three 4-inch pVG monitoring wells <br /> (MW) . Each well would be completed with a bentonite <br /> and cement grout seal. Representative groundwater <br /> samples would be obtained from each well and submitted <br /> tar laboratory analyses. <br /> 5. All samples would be field screaneselectsite <br /> soiwith <br /> samples <br /> photo-ionization detector (PID) . <br /> will be submitted for laboratory analyses. R11 <br /> submitted samples will be analyzed for total petroleum <br /> hydrocarbons (TPH) as gasoline; benzene, toluene, <br /> ethylbenzene, and xylene (BT.EX) ; tetra-ethyl lead <br /> (TEL) ; and ethylene dibromide ('EDB) . <br /> Texaco would like to begin the site work as soon as possible, and <br /> has scheduled a drilling rig for April. Therefore, we are <br /> formally requesting that this proposed work plan be given <br /> priority review, as outlined in the communication from 3091 <br /> Khanna dated December 29, 1986. Please bill the fSacrameeto <br /> review <br /> District office of Groundwater Technology, Inc. <br /> fees. <br />