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_ <br />. ".. . +Yf? .. '�_ ... w,-���y�n n-- -����...I_,,..,. - -..„�:...,�.:'. ..��w:,e...w,r�o ?Jw.,.r:r _'�+a�Y.,a--...-ca.x ;-_�..�z--`s+" ----::nr�ssarr .."_ ._�r��_`r-�r�--r�._.-�• _.+rx.� _� r_-u.s.•r.^c;' <br /> . J <br /> Exxon Conpaay USA <br /> 202/225-2745.02 <br /> August 21 , 1987 <br /> SCOPE OF WORK <br /> 1 � The purpose of this investigation . <br /> was to provide further <br /> assessment of subsurface soil and <br /> groundwater conditions to <br /> determine the potential impact of hydrocarbon leakage at the <br /> site. The following work <br /> n g steps p were performed to complete this <br /> investigation. <br /> F; <br /> M <br /> Drilling of two soil boringson the northern and <br /> southern boundaries of the site. <br /> Iristallatian of two 4-inch diameter monitoring wells <br /> ' in the soil borings . <br /> Y <br /> f <br /> Collection of rel ativ.ely undisturbed soil samples <br /> i <br /> r; dur.ing.. the drilling of the sail borings at five foot <br /> intervals f' <br /> Laboratory analysis of selected sollsamples for total <br /> -volatile hydrocarbons (TVH) benzenetaluene, <br /> ethylbenzene and <br /> f xylene (BTEX) . <br /> Xa lKonitoring of the 'Pive wells for <br /> cj <br /> F9 groundwater elevations <br /> and thickness of- free floating--product , if: any: <br /> " <br /> Collection of groundwater •samples from all five wells <br /> for analysis Of TVH and BTRX. <br /> Presentation_ of the results and findingsof the <br /> investigation in a summary. report.. <br /> x <br />