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. Harlan Knoll 2 May 16, 1995 cement/metal well box debris were drummed into 55-gallon containers as produced Tremie pipe was then immediately inserted into each boring, and a grout mixture of ninety-five percent Portland Cement and five percent bentonite poured in to a depth of approximately two feet bgs The grout column was bermed in, and the remaining two feet was filled in and finished with native soil to ground level The volume of sealing material emplaced during abandonment appeared to be slightly greater than the volume to be sealed Disposal Sampling During abandonment, a composite sample of well debris from the boring cuttings was collected The sample was analyzed by McCampbell Analytical of Pacheco, California for the purpose of predisposal profiling The analyses for the soil/debris composite included total petroleum hydrocarbons (TPH) as diesel, benzene, toluene, ethylbenzene, and total xylenes (BTEX), and reactivity, corrosivity, and ignitability (RCI) Please see the attached copy of analytical results for the collected sample Following the receipt of the analytical results on April 28, 1995, IT arranged for the transport of solid waste materials to the Browning-Ferns Industries (BFI) landfill in Livermore, California for disposal The drums were transported from the Ashley Lane site to BFI in May 1995 by representatives of IT Please see the attached copy of the BFI "Non- Hazardous Special Waste & Asbestos Manifest" • Documentation This report is being filed with San Joaquin County Department of Environmental Health, as needed for compliance with site closure requirements If you have any questions or comments regarding this letter report, please do not hesitate to call Sydney Geels at (510) 372-5292 or Daniel R Bannon at (510) 372-5296 Sincerely, IT CORPORATION S dney eels Daniel R Bannon Project Manager Project Geologist SG drb MZ/UST/95-0121 drb Attachments cc Irene Soto - Pacific Bell Lyle Stuck - Pacific Bell