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GeologicafTechnics Inc. <br />' 2741 River Road <br /> Modesw,Cafefornra 95351 <br /> (209)538-6424IFax#538-5852 <br /> 1 <br /> Work Pian <br /> Soil Boring & Monitoring Well Installation <br /> J M. Equipment Company <br />' 1245 West Charter Way <br /> Stockton, California <br /> Project No 507 2 <br /> November 6, 2000 <br /> 1.0 INTRODUCTION <br /> Directive Letter <br /> ' J M Equipment Company received a letter on November 1, 1996 from Mr Joel Weiss of the <br /> California Regional Water Quality Control Board - Central Valley Region This letter <br /> referenced a report prepared by William J Hunter & Associates for Independent trucking <br /> Facility located east of J M Equipment at 1145 West Charter Way, Stockton, CA This <br /> report dated October 21, 1996, titled Interim Report Covering Soil and Groundwater <br /> Investigation, included information from MW-9, a groundwater monitoring well placed on J <br /> M Equipment property for the purposes of defining the groundwater plume in an upgradient <br /> ' direction The November 1, 1996 letter from Mr Weiss requested a work plan for lateral and <br /> vertical definition of soil and groundwater impacted by petroleum hydrocarbons <br /> ' Site History <br /> Years ago this facility contained two underground fuel storage tanks (UST's) and two above <br /> ground fuel storage tanks (AST's) These tanks contained both gasoline and diesel, but the <br /> preliminary data from MW-9 suggested that only the gasoline tanks released fuel <br /> Facility photographs document that these tanks were located near the southeast corner of the <br /> ' Hesston Shop County assessor records show that this shop was constructed in 1988 and to <br /> the best of facility employees recollection, the UST's were removed in the early 1980's For <br /> a period of several years J M Equipment used just AST's The UST's were in the size range <br /> ' of 500 to 1,000 gallons and the AST's appear to be less then 500 gallons each <br /> The UST's were used for both gasoline and diesel The pumps were located near the top of <br /> the tanks The AST's were originally used for diesel and then later one was used for <br /> gasoline <br /> Prior to the early 1970's Crandle operated a John Deere facility on this property In the early <br /> ' 1970's Quimby purchased the property from Crandle and operated J M Equipment which is <br /> an equipment sales and service business In 1991 the property was transferred from Quimby <br />