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Corporate Office Division Office 8774 Yates Drive,Suite 100 Co Granite Street,Suite 1✓ Westminster,Colorado 80030 t.�.l 7'. Corona,California 91719 R y a n-M u r p h fy ,:Inc i'1r.}�`o k t e d (909)279-6210 (303)427-4567 t Fax(303)427-1955 "The Good Earth Company" (000 Fax(909)279-6215 January 11, 1995 Mr. Harlin Knoll San Joaquin County Public Health Services P.O. Box 2009 (445 N. San Joaquin St.) Stockton, CA 95201 Site: Firestone Store No. 3573, 400 North EI Dorado Street, Stockton, CA Subject: Final VES/Site Closure Documentation Dear Mr. Knoll: During November 7, 8, and 9, 1995, a vapor extraction system (VES) and associated wells and piping were decommissioned at the subject site. The closure activities included the removal of the VES equipment, removal of 10 spent drums of carbon, disposal of 19 drums of drill cuttings, abandonment of monitoring points and extraction wells, the removal of the ancillary piping, and restoration of the city sidewalk. On November 7, 1995, the concrete covering the VES piping, wells, and monitor points was removed. All lateral piping beneath the city sidewalk was removed and disposed. The lateral piping from the VES to the city sidewalk (located on the Firestone property) was left in place. This piping was plugged with a cement grout. By the conclusion of the VES operation, 10 drums of carbon had been accumulated. On November 8, 1995, the drums were picked up by Viking Freight Systems, Inc., and transported to Northwest Carbon's facility in Red Bjuff, California. The volatile organic constituents (VOCs) accumulated in the carbon were treated by thermal incineration. The bill of lading and certificate of VOC destruction and carbon reactivation are attached for your records. The 19 drums of drill cuttings stored at the site were also picked up on November 8, 1995. Laidlaw Environmental Services Southwest picked up the drums and transported them to its facility in Phoenix, Arizona. The Uniform Hazardous Waste Manifest, which documents the transportation and disposal, is attached.