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,x.�, MW <br /> +»�a 'stie'°° ... <br /> .3.. r". a;' ..'iymiy y "'fie. c 'T' '�'",'".�'`'r�'K.' u .s ,,i r"e"< y,• '�vE - 4� �"`S .^ <br /> '�wa� � �`�� wk . �;,•t�-?wc T �.�r;:,� ;�^ r" �.' avrs �,.•�r"` '�'"�'a;,%r: _r�� �F,: �� <br /> x <br /> a <br /> i <br />�f <br /> a <br /> ER <br /> k:A <br /> PRELIMINARY SITE INVESTIGNTION REPORT <br /> GREYHOUND TERMINAL <br /> STOCKTON,CALIFORNIA <br /> INTRODUCTION <br /> This report describes the site assessment implemented at the Greyhound Lines, <br /> Inc.( I and <br /> GLI) Terminal, 121 South <br /> was submitted ted Ito GLI n California letter proposal dated <br /> 2). The scope of work desert <br /> p August 16, 1991. <br /> 1991, a preliminary site assessment was initiatedin <br /> c <br /> On September 16, Joaquin <br /> County <br /> accordance with the approved Work Plan submitted to San Joaq A total of five <br /> SJCPHSJEHD). <br /> were advanced. Soil samples from each boring were collected and <br /> Health Services, Environmental Health Division ( and benzene, <br /> soil borings hydrocarbon (TPHD and TPHG) <br /> analyzed for total petroleum hY BTEX) to define both the lateral and vertical <br /> toluene, ethylbenzene, and xylene ( Q were converted to <br /> extent of soil contamination. Three of the soil borings groundwater quality. <br /> monitoring wells to characterize hYdesenof gic free product aconditions ccumulation and depth <br /> The wells were monitored for the pnce <br /> to roundwater, and groundwater samples were collected from each well for TPHD, <br /> g <br /> TPHG and BTEX analyses. <br /> PROJECT BACKGROUND <br /> Inc. (GLI) operates a passenger bus terminal at 121 South <br /> Greyhound Lines, As art of passenger terminal <br /> Center Street,Stockton,California{Figures 1 and o p In May, 1991, GLI <br /> erasion, Greyhound utilized and maintained one <br /> bu 00s.0-gallon underground <br /> GLI <br /> operation, purpose <br /> diesel fuel storage tank for the ound fuel storage tank (UFST) and associated <br /> initiated removal of th z underg samples <br /> i ing. Soil samples •.ere collected to assess the potential for environmental <br /> ppthe normal <br /> ., contamination associated e e%cavation con, f the as high as <br /> collected at the base of the In addition, soil samples <br /> 4,200 mg/kg (.P-1, 14 feet below ground surfaee). Icentrations <br /> ed <br /> ed from beneath the piping contained TPHDbelow ground surface)- Based on <br /> collect k (P-5,2 feet <br /> between non-detect and 11,000 mg/kg <br /> San Joaquin County <br /> these analytical results and the re kmLUl�)t Manualt 1989,ned in the State of extent and <br /> Leaking Underground Fuei Tan <br /> ' pHS/EHD) requested additional investigations at the site to assess the <br /> magnitude of soil and/or groundwater contamination. <br /> r� <br /> ` ,,.,1 L%jWsY15221/0M PZV a <br /> i� 1 <br />