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OWN <br /> t <br /> REMEDIAL ACTION PLAN <br /> FOR <br /> SEBASTIANI VINEYARDS/ <br /> WOODBRIDGE CELLARS <br /> LODI, CALIFORNIA <br /> INTRODUCTION <br /> This report presents a detailed remedial action plan for soil and <br /> groundwater clean-up activities at the Sebastiani Vineyards/Woodbridge <br /> Cellars facility, 4614 West Turner Road, Lodi, California. The location <br /> F <br /> of the project site is shown on Figure 1. <br /> The remedial action plan presented in this report is based on the current <br /> understanding of soil and groundwater condition;; at the site, which has <br /> been developed thro---gh prior site assessment inve.tigations as presented <br /> in the June 28, 1989 Sebastiani Vineyards/Woodbridge Cellars Site <br /> Assessment Report and the October 6, 1989 Site Assessment Addendum. The <br /> remedial action plan includes: <br /> • A description of the proposed soil remediation consisting of <br /> vapor extractio,Z and treatment. <br /> • A description of the proposed groundwater remediation consisting <br /> of groundwater extraction, treatment and infiltration. <br /> -� A proposed schedule for permitting and implementation of soil <br /> and groundwater remedial actions. <br /> Soil and groundwater remediation facilities presented in this plan have <br /> been located to accommodate the planned expansion of the Sebastiani <br /> Vineyards/Woodbridge, Cellars Facility shown on Figure 2. <br /> BACKGROUND <br /> A 550-gallon underground leaded regular gasoline storage tank was closed <br /> by removal at the site on November 4, 1988, by Claude C. Woods Company of <br /> Lodi, California. Soil samples taken by Canunie Environmental Services <br /> of Stockton, California from directly beneath the former tank location <br /> detected xylene at 600 parts per million (ppm); total volatile petroleum <br /> hydrocarbons at 500 ppm; and total lead at 18 ppm, The tank removal <br /> excavation and subsequent soil contamination assessment excavation <br /> extended to a depth of approximately 18.5 feet, where groundwater was <br /> encountered. Excavation end point soil samples showed up to 6,900 ppm <br /> total petroleum hydrocarbons (TPH), 56 ppm benzene, 500 ppm toluene, <br /> 140 ppm ethylbenzene, 770 ppm xylenes, and 0.8 ppm organic Lead An <br /> - -- <br /> 45-cubic yards of visually-contaminated soil were removed during <br /> tank closure and excavation activities. This soil was stockpiled at the <br /> 1 <br /> Boom <br />