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c� In addition, TF,H and TVPH (TPH-G) tests were run on the pipeline samp)es, presumably to enable detection of a,iy leaked diesel fuel . The tanks were excavated and pulled during the last week in April and the first week in May, 1929 by Jim Thorpe oil , Inc. The excavation can be seen in Figures 4 and 5. The spoil from the Excavation was stored or. plastic easterly of the excavation (Figs. 4, 5, 8, 9) . The Port of Stockton will arrange for either disposal or remediation. On May 11 , 1990, Canonie Environmental Labs . , Stockton, Ca. , a DHS certified laboratory, took 12 samples under the locations of the tanks, three under each tank location. The locations and numbers of the tests are shcwn in Attachment 3 and in Fiaures 8 and 9. After sampling was completed on the tank locations, the pipelines to the Key Lock pumps (See Att. 3 and Figures B & 9) were excavated, requiring a trench about 3 feet deep. On July lo, 1969, 9 samples were taken, one about every '20 ft. plus or minus , from the trench below the pipeline route. All tests were witnessed by the DHS. During the taking of all samples, both from the tank loca- tions and along the pipeline route, the following general procedures were followed: Canonie Env, Lab. Services supplied all sampling equipment and took all samples. All equipment was certified as clean by the laboratory. 6" brass tubes were pushed into the soil at sampling locations, after the surface had been cleaned of debris . Two samples were taken at each location, one for testing and one for fili;ure consideration if needed. The samples were then capped with l foil and plastic caps, placed in ice chests and taken to the laboratory. Chain-of--custody documents were kept for all samples . If more detailed descriptions of Q/A Q/C procedures are needed, see Attachment 6. The samples along the pipeline route were taken at about three feet below ground level and from under the lines. While excavating for Line Sample P-9, at the Key Lock sites, a water line was broken, which will be noted later herein. For results see: Results and Analyses of Sample Data, further herein. After the res�.ilts of the sampling and testing reveale ccn- tamination at several locations, field operaticns were suspended while management reviewed opticns for further wor' . Hunter and Associates were retained by Jim Thorpe Oil , as a sub-contractor for preparation of a Sate Assessment and Work Pian in April, 1990. On'Aprii , 15, 1990, the writer vi_-c-cited the s_te as a f=.rst crientation For preparing this document. Photographs of the pit, general site area and the ti;ey Lock pump locations were taken at that time. The writer revisited the site on April 23, 1990, a;:a took ad al