ARCHIVED REPORTS_XR0007448 - Laserfiche WebLink

Home Browse Search

BACKGROUND A 550-gallon underground leaded regular gasoline storage tank was formerly located north of Warehouse Number II at the Sebastiani Vineyards/ Woodbridge Cellars facility (Figure 2) The pump station was located approximately six Feet east of the former tank location connected by underground product delivery piping Mr Stephen Mani.ldi, Administrative Manager of the Sebastiani Vineyards/Woodbridge Cellars facility indicated that the tank was approximately 40-years old Tank testing, performed by Jim Thorpe Oil Company on July 23, 1986, showed the tank and lines certifiable, in accordance with National Fire Protection Association (NFPA) 329 criteria A second tank testing, performed by .Tim Thorpe Oil Company on September 28 , 1987, also showed the tank and lines as testing tight and certifiable by NFPA 329 criteria In accordance with Sebastiani Vineyards tank management program and due to the tank's location with respect to future facility expansion plans, the tank was removed on November 4, 1988, by Claude C Woods Company of Lodi, California Permit Number 88-0053 was issued to Sebastiani Vineyards on June 7 , 1988 by San Joaquin County for the removal of the storage tank The removal operation was monitored by Mr Harlan Knoll, Registered Sanitarian from the Srn Joaquin Local Health District (SJLHD) During the tank removal, a small hole was observed on the bottom of the tank and gasoline was observed in the soils excavated from under the former location of the tank Mr. Knoll filed an Underground Storage Tank Unauthorized Release (LEAK)/Contamination Site Report on December 12, 1988 Following the tank removal, one soil sample was collected from the tank excavation on November 4, 1988, by Canonie Environmental Services of Stockton, California under the direction of Mr Knoll Canonie Environmental Services is certified by the State of California, Department of Health Services for hazardous waste testing The soil sample was collected from approximately eight feet below ground surface and was analyzed for benzene, toluene, xylene, and total volatile petroleum hydrocarbons (TVPH) by modified EPA Method 8020, for ethylene dibromide (EDB) by EPA Method 8010, and for total lead content by EPA Method 7420 Results of these analyses indicated concentrations above laboratory detection levels of xylene, total volatile petroleum hydrocarbons and lead, as summarized below Laboratory data sheets for these analyses are included in Appendix I lXylene TVPH Lead 600 ppm 500 ppm 18 ppm Sebastiani Vineyards subsequently submitted a soil remediation work plan to SJLHD for the removal and treatment by aeration of approximately 170 to 300 cubic yards of soil excavated from the area directly below the former tank location to a depth of 18 5 feet below ground surface The soil removal was conducted on April 6, 1989 , and approximately 45 cubic 3