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rf <br /> 4 <br /> R x541 i� ;II;isSJ T,,L �rj� <br /> B R O W i \ A N D (t 4 � 3 f ti�l,��l rE <br /> r { <br /> C A L D W E L L : LIL, HI 1= 1s <br /> July 15 1994 <br /> 99 <br /> Mr Chuck Carmel <br /> ARCO Products Company <br /> 2000 Alameda de las Pulgas <br /> Post Office Box 5811 <br /> San Mateo, California 94402 017-1273-0111 <br /> Subject Status of Groundwater Extraction System, ARCO Station 2133, <br /> Stockton, Calitornia <br /> Dear Mr Carmel <br /> This letter presents the current status of the groundwater extraction system and the results of <br /> • groundwater discharge sampling at ARCO Products Company (ARCO) Station 2133, located <br /> at 2908 Benjamin Holt Drive in Stockton, California Listed below is a summary of activities <br /> and discharge of groundwater at the site from May 17, 1994, through June 15, 1994 Table 1 <br /> presents a summary of the laboratory analysts in this reporting period (The complete <br /> laboratory report for this reporting period is included in Attachment A) <br /> 6115194 Collected effluent water sample for laboratory analysts of total petroleum <br /> hydrocarbons (EPA Method 8015, Modified), benzene, ethylbenzene, toluene, <br /> and xylenes (EPA Method 602), and trace metals (EPA Method 200 7) <br /> The total volume of water discharged during the period was 321,668 gallons The average <br /> flow rate during this period (29 days) was approximately 7 7 gallons per minute The average <br /> daily flow was 11,092 gallons <br /> Table 2 presents the average pounds per day of each constituent discharged to the sanitary <br /> sewer The quantity of hydrocarbons being discharged is in compliance with the City of <br /> Stockton Wastewater Discharge Permit issued for this site The constituent quantities were <br /> calculated using the following formula <br /> Ats report was prepared in accordance with the standards of the environmental consulting industry at the time it was <br /> prepared It should not be relied upon by parties other than those for whom it was prepared and then only to the <br /> extent of the scope of worn which was authorized This report does not guarantee that any additional environmental <br /> . conditions beyond that described to this report exist at this site <br /> L 2731CORRESPI1273JUL RPT <br /> Envrronmenta�Eogmeerrng Ana Consulting Analytrcar ServiCeS <br /> 4616 \1i(xoNi vt i P 0 Boy 1 +44`) 5vcxruiFo C 1 9� 8 1 449 <br /> f916) 444 0 12 3 Ftix 4916 ] 856 X277 <br />