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labeled, and placed under blue ice for transportation to McCampbell Analytical, Inc. under chain of custody. The samples were subsequently analyzed for TPH-G and BTEX using EPA Methods 5030/8015-8020, TPH-D using EPA Methods 3510/8015, Total Lead using EPA Method 7421 , and Halogenated Volatile organics (Purgeable Halocarbons) using EPA Method 601 . The results of these analyses are summarized in Table 2. Copies of all laboratory results as received from the California-State ' certified hazardous waste analytical laboratory are enclosed as Appendix B. ' The sediments encountered during drilling were fine to very-fine, poorly to medium-sorted or well-graded sands, brown-gray salts, and gray-brown to brown clays . A detailed description of these soils is contained within the soil boring logs presented in ' Appendix A. Before and between sampling events and collection of 5-foot ' lengths of continuous core, the sampler and core barrel were thoroughly scrubbed with Alconox solution, rinsed with tap water, and then rinsed again with distilled water. Augers were steam- cleaned prior to being brought on site and between borings. ' All cleaning and rinse water was collected and stored on site in two covered, 55-gallon, DOT drums. On December 16, 1992, one water sample was collected from the DOT drums into two (2 ) one-later amber glass sample bottles . Each sample bottle was f half-filled with water from one drum, then filled to the top with water from the other drum. Each sample bottle was sealed with a teflon-lined screw cap, and then stored under ace for transportation to Uraah' s dedicated refrigerator until the samples were analyzed on the afternoon of December 17, 1991 using the HNU-Hanby method as approved by Frank Beeler of the City of Lodi Department of Public Works. The detection limit of this method is 10 parts per million (ppm) Total Petroleum Hydrocarbons (TPH) in water. The samples contained no detectable ' levels of fuel hydrocarbons . On February 4 , 1992, the drummed water was discharged to the municipal sanitary sewer with the approval of the City of Lodi Department of Public Works. The auger spill remaining after drilling was stored on visqueen and within two 55-gallon DOT drums. The auger spall within the DOT drums were sampled on December 16, 1991 . The sample was collected by driving a clean brass 1 . 9 inch diameter and ' 6.0 inch long sample tube into the soil at two locations for each brass tube. Upon withdrawing each completely filled sample tube from the soil, the ends of each sample tube were covered ' by teflon pads, fitted with plastic caps, sealed with duct tape, and then transported under chain of custody to a State-certified hazardous waste analytical laboratory for analyses for TPH-G, BTEX, TPH-D, Total Lead, and STLC Lead using approved EPA methodology. On February 4 , 1992, these DOT drums were transported to the Browning-Ferris Industries Vasco Road Sanitary 3. 1