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i <br /> I ( f <br /> s ' <br /> ❑ � GROUNDWATER <br /> ❑ � TECHNOLOGY, INC . <br /> OIL RECOVERY SYSTEMS 1832 Tribute Road, Suite G, Sacramento, California 96816 (916) 921-1800 <br /> March 2 , 1988 <br /> Project Number 202 / 799 - 5019 <br /> i <br /> Ms . Laurie Cotulla <br /> Environmental Health Division <br /> San Joaquin Local Health District <br /> Box 2009 <br /> S <br /> Stocc kton , CA 95201 JUN v <br /> 04'e <br /> Tg <br /> HE : 610 NORTH HUNTER STREET /S4V/ 4Tj� <br /> STOCKTON , CALIFORNIA <br /> i <br /> Dear Ms . Cotulla : <br /> Enclosed are laboratory analytical reports for soil samples <br /> f collected by Groundwater Technology , Inc . ( GTI ) from the property <br /> of Mr . Ray Farmer at the above referenced location . <br /> fOn November 11 , 1987 , GTI obtained soil samples from an excavated <br /> r tank pit at the site . The results of laboratory analyses <br /> performed. on the soil samples were outlined in a letter to your <br /> office dated December 16 , 1987 . <br /> 4 <br /> Upon review of analytical results of the initial samples taken <br /> from the bottom of the tank pit , it was determined that <br /> f contaminated soil was still present , The pit was subsequently <br /> re-excavated to a depth of approximately 25 feet . On January 21 , <br /> 1987 , GTI returned to the site and obtained soil samples from the <br /> bottom of the excavated tank pit . Enclosed are the laboratory <br /> analytical results for the second round of sampling . The samples <br /> were analyzed for total petroleum hydrocarbons ( TPH ) as gasoline ; <br /> benzene , toluene , ethylbenzene and xylene ( BTEX ) ; ethylene <br /> dibromide ( EDB ) ; and organic lead . For analysis methods or <br /> descriptions , please see enclosed laboratory results . <br /> Offices throughout the U. S., Canada and Overseas <br /> Western offices in: Tempe, AZ; Concord, CA; Sacramento, CA; San Diego, CA; <br /> Torrance, CA; Ventura, CA; Englewood. CO ; Renton, WA <br />