Laserfiche WebLink
Underground Storage Tank Removal Report and Work Plan for Monitoring Well Installation 2 <br />. Southland Store#17334,4501 North Pershing Avenue,Stockton,California October 27, 1998 <br /> 3 0 WELL DESTRUCTION <br /> On August 14, 1998, Fluor Daniel GTI personnel supervised the destruction of monitoring wells MW-1 <br /> and MW-1A Prior to well destruction, each well was gauged for total depth and cleared of any <br /> obstructions Field notes are included as Appendix A <br /> The wells were destroyed by removing the well traffic boxes, and drilling out the entire PVC casing and <br /> sand annulus material using a truck-mounted drill rig equipped with hollow-stem augers The resultant <br /> boreholes were grouted with Portland cement to approximately 6 inches below ground surface and <br /> topped with black-dyed concrete to match the existing surface grade <br /> All well-related materials, including well casings, well boxes, and associated concrete were segregated <br /> from the well annulus material and disposed of at a local landfill All well annulus material and auger <br /> rinse water was stored on site in DOT-approved 55-gallon drums <br /> A total of four drums of well annulus material and two drums of rinse water generated during the well <br /> destruction activities, as well as two drums of well purge water generated during the second and third <br /> quarter sampling and monitoring events were removed from the site by Belshire Environmental <br /> Services, Inc The four drums of soil were transported to TPS Technologies Inc in Adelanto, California <br /> on September 21, 1998, for proper disposal On September 14, 1998, the four drums of rinsate and <br /> well purge water were transported by Nieto & Sons to DeMenno Kerdoon in Compton, California for <br /> recycling (Appendix B) <br /> 4 0 NEW TANK PIT EXCAVATION <br /> 4 1 Soil Stockpile Sampling <br /> On August 25, 1998, approximately 200 cubic yards of soil was excavated from the new tank pit to <br /> accommodate the installation of two new double-wall steel 10,000-gallon USTs Soil was stockpiled on <br /> site at the location shown on the field sketch included in Appendix A <br /> A total of fifteen soil samples were collected from the soil stockpile (SP-1) The soil samples were <br /> collected at a depth approximately 1 foot below the surface of the stockpile in six-inch-long by two-inch- <br /> diameter brass sleeves at the locations shown in the field sketch The sample sleeves were capped <br /> with Teflon tape and plastic caps, sealed with tape, labeled and placed in an insulated container for <br /> transport under chain-of-custody manifest to Acculabs, Inc (formerly WEST Analytical Labs) in Davis, <br /> California for analysts The samples were combined into five samples in the laboratory and analyzed <br /> for benzene, toluene, ethylbenzene, total xylenes (BTEX), methyl-tert-butyl ether(MTBE), and total <br /> 17334ust rpt <br /> FLUOR DANIEL GTI <br /> i"J <br />