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_- <br /> e iC ii '" t °.�:. r .:n F .utr,,;a sr- c� ^, "V .ir` _K n.. +:• "' .a rig • " �" v -' - <br /> ;�• 9 �i.. t'a TIC 'a :� L. .;7t'r,;. �mV.r �' � j 7 �✓v -!, '-T ✓ 'I°%'�' +;' Y, - <br /> •R 4.. <br /> .J„ {�� ) n6.,7•1=. 4' N a�'�,^-+ .4.4^ '.7h `iG, ..y- H•+ra.•.�,lnN-1 5 y�' I�'y ..Y v ix:rr- �x-�'- ..1..F F: �f+^v #Sr5 T•.:. F:1 <br /> •� �F�.k�.L , � 6 �.� 1✓'r! :'. - .(.,..: i`i 7•aal -n � i-:.�. �`t�za �� 4 N."' i � '-. <br /> y <br />����,�' �a. �W::WL-1 t ° 4 ,I� r�,�t�c -_� � t.� �r� v .t r• 4 l A —'�"S T� IL� -C <br />� � xI�"ti_ r • S n u:>tw J e" '=4 ev�''r3:,l��#�4 I"��,>^aat � ,,,-�v T''.E.� � <br /> r n�� <br /> k, n <br /> r <br /> ENVIRONMENTAL ASSESSMENT STATUS REPORT <br /> TEXACO]SERVICE STATION <br /> 440(NEST CHARTER WAY <br /> STOCKTON, CALIFORNIA <br /> October 9, 1990 <br /> 7.0 INTRODUCTIOiq <br /> This report, prepared by Groundwater Technology,Inc.,presents the findings of the continuing <br /> environmental investigation of the Texaco Service Statior,located at 440 West Charter Way in Stockton, <br /> California(Figure 1). A summary of the work conducted to date has also beers included. Preparation of <br /> this report was requested by the California Regional Water Quality Control Board, Centra!Valley Region <br /> (CRW0C8-CVR), and was approved by Texaco Refining and Marketir,g Inc. (TRMI). <br /> 2.0 BACKGROUND <br /> Currently, the site is an operating Texaco Service Station,in a mixed residential and commercial <br /> district in southern Stockton,California. Four pump islands and!yvo Foodmart pump;locations dispense <br /> regular, unleaded, and super unleaded gasoline, and diesel from three 10,000-gallon and one 12,000- <br /> gallon underground storage tanks (Figure 2). There are no known septic tanks in the area and all <br /> underground utilities have been appropriately marked using [Underground Ser-rice Alert (USA). <br /> 2.1 SITE SETTING AND HISTORY <br /> The site is located at an elevation approximately 10 feet above mean sea level. focally, the land <br /> slopes gently towards the Sart Joaquin River which is approximately 1.5 miles south of the site, <br /> fn Octaoer 1988, hydrocarbon-impacted soil was obsen+ed at the site after two pump islands were <br /> removed in preparation for new construction. Soil beneath one pump island was excavated to a depth <br /> M'- .-�'� CIiOCthl)11'ATt:fi <br /> _ TECIINOJ.of:1;)�L', <br />