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i1 1 I tl1�� <br /> • HEALTH <br /> to I am Loa e <br /> Environmental Consultants Inc <br /> GEOTECHNICAL ENGINEERING AI b: ,NVI PO A MIUNTAL SCIENCES <br /> Project No 58100-06-IIA <br /> March 15, 1995 <br /> HAND DELIVERED <br /> California Department of Transportation <br /> District 10 <br /> P O Box 2048 <br /> Stockton, California 95201 <br /> Attention Mr Saiyed S Ali, Contract Manager ('(� <br /> Subject STOCKTON YARD <br /> STOCKTON, CALIFORNIA 0 <br /> CONTRACT NO 53W202 0 <br /> TASK ORDER NO 10-5171000-2 1 Z J <br /> SITE ASSESSMENT WORKPLAN <br /> Dear Mr Alt T <br /> • In accordance with Caltrans Contract No 53W202 and Task Order No 10-5F1000-2, Geocon <br /> Environmental Consultants is submitting this Workplan for soil and groundwater assessment work <br /> to be conducted at the above referenced project site This Workplan describes the scope of work <br /> requested by Caltrans and outlines procedures and methods to be employed by Geocon to <br /> complete the project <br /> PROJECT LOCATION <br /> The project site consists of the Caltrans District 10 Stockton Yard, an equipment maintenance <br /> facility, located at 1604 South B Street in Stockton, California The approximate site location is <br /> depicted on the Vicinity Map, Figure 1 The project boundaries are shown on the Site Plan, <br /> Figure 2 <br /> BACKGROUND <br /> The Stockton Yard was built in approximately 1955 and contained a fueling station in the <br /> northwest corner It is understood that one 5,000-gallon diesel UST, one 10,000-gallon unleaded <br /> gasoline UST, two pump islands and associated product piping were removed from the site in <br /> 1989 The results of laboratory tests of soil samples obtained from the UST excavations indicated <br /> • the presence of benzene, toluene, ethylbenzene and total xylenes (BTEX) at concentrations up to <br /> 3235 Sunrise Blvd,Swte 6 <br /> Rancho Cordova CA 95742 <br /> (916)852-9118 <br /> Fax(916)852 9132 <br />