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Mr, Chuck Carmel <br /> March 17, 1993 <br /> Page 2. <br /> W = QxCx120x10"5 <br /> where <br /> W = Average amount of chemical discharged, lbs/day <br /> Q — Average flow rate, gpm <br /> C = Concentration, Ug/l <br /> 120 x 10"5 = (minutes/day x lbs/gallon)/1,000,000,000** <br /> W = lox 10-4xCforQ = 476gpm <br /> **Use 1,000,000 for determination of average lbs/day of TPH <br /> The next monthly status letter will include the interval February 16, 1993, through <br /> March 15, 1993 <br /> Please call Mr Steve Misner at (916) 444-0123 if you have any questions regarding the <br /> groundwater extraction system at ARCO Station 2133 <br /> Sincerely, <br /> BROWN AND CALDWELL CONSULTANTS <br /> Leven �Mlsner Lawrence E. Phillips <br /> Protect Manager California Registered Geologist #3710 <br /> SDM LEP jrb <br /> Enclosure <br /> cc Ms. Mary Meays, San Joaquin County <br /> Ms Elizabeth Thayer, Regional Water Quality Control Board <br /> Mr. Frank Tucker, City of Stockton <br /> Ms. Mindy Wright, Brown and Caldwell Consultants <br /> Brown and Caldwell 7452\CORMPA7452-041-1 <br /> Consultants <br />