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inches long. Augers and sampling tools were steam-cleaned before drilling each boring. The split-spoon sampler was scrubbed with detergent solution and rinsed with DI water between sample loca- tions. All soil samples to be analyzed were immediately packaged and placed in an ice chest (on blue ice) , and were delivered to the analytical laboratory within 24 hours . Brass liners were covered with teflon septa and end-caps, securely taped-on. Locations of the borings are shown in Figure 2 (Appendix A) , and ' the vertical positions of the soil samples are shown in the boring logs, found in Appendix B. Soil samples boring B-1 (depths of 5, 15, and 20 feet) and from borings S-1 and S-2 ' (depth of 5 feet) were packaged for shipment to a certified analytical laboratory (Precision Analytical) under chain-of- custody. Borings B-1, B-2 , and B-3 were drilled on October 20, to total depths of 30 .5 feet . In order to maintain the borings completely open overnight, for next-day measurement of depth to static water level and water grab-sampling, 2-inch PVC casing and screen were set in these borings . A five-foot section of slotted screen (0 . 010-inch slots) was positioned in the lowest five feet of each boring. Boring B-4 was drilled on October 21, to a total depth of 28 feet, after determination of the local groundwater flow direction (see Section 4) . Borings S-1 and S-2, with total depths of five feet, were hand-augered on October 21; samples were placed in screw-top sample jars . 3 .3 Soil Types Encountered Boring logs (B-1 through B-4, Appendix B) were constructed from samples taken at five-foot intervals . All borings encountered a silty, fine sand within six feet of the ground surface; this soil ' is loose and tan in color. At depths below about 6 feet, sands (clean, loose, tan or gray, and fine-or medium-grained) or clayey silts (light brown and slightly to moderately plastic) were encountered. The clean sands were present beneath the silty sands in all borings to depths of at least 10 .5 feet . ' 3 .4 Collection of Groundwater Samples Groundwater samples were collected for analysis on October 21 from borings B-1 through B-4, using new disposable bailers passed down through the temporary PVC casing. The necessary bottles were filled, capped, labeled appropriately, and placed in an ice chest on blue ice. They were shipped under chain-of-custody to ' the laboratory on October 21 . Samples for priority metals analy- sis were filtered by the laboratory. ' 3