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C <br /> I <br /> e1 <br /> Ms Lori Duncan Project 880-039 IA <br /> March 13, 2002 <br /> Page 2 <br /> Thorpe Oil of Lodi, California, removed the second UST in February 1996 Residual <br /> hydrocarbons were detected in soil samples collected from beneath the UST <br /> Between September 17 and October 11, 1996, EMCON/OWT observed the drilling of six <br /> soil borings (B-1R through B-6R) One soil boring was converted to monitoring well <br /> MW-1R, three soil borings were converted to dual completion vapor extraction wells <br /> VW-1 through VW-3, and one soil boring was converted to a single vapor extraction well <br /> VW-4 <br /> On February 3, 2000 a soil vapor extraction (SVE) system was brought on line The <br /> system consists of four shallow zone and three deep zone SVE wells, from which soil <br /> vapors are extracted using a Stealth Bobcat Catalytic Oxidizer rated at 100 cubic feet per <br /> minute (cfm) <br /> SCOPE OF WORK <br /> IT proposes to install two groundwater monitoring wells and one deep soil boring <br /> Drilling and sampling procedures are included in Attachment A <br /> Health and Safety Plan <br /> Prior to the initiation of field work, a site Health and Safety Plan will be prepared in <br /> accordance with 29 CFR 1910 120 The health and safety plan will include safety <br /> rprocedures for work to be performed at the site, chemical hazard information, site safety <br /> officers, and preferred medical emergency locations A draft Health and Safety Plan has <br /> been included in Attachment B <br /> IT CORPORATION <br /> SACIIISACRFPIICOMMON1sacDP120021PRJ\PJ818801880039IA tab doc <br /> (01020000) <br />