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Mr Chuck Carmel <br /> May 13, 1992 <br /> Page 2 <br /> W = Q x C x 1 20 x 10-5 <br /> where <br /> Q = Average flow rate, gpm <br /> C = Concentration, pg/l <br /> W = Average amount of chemical discharged, lbs/day <br /> 1 20 x 10-5 = (minutes/day x lbs/gallon)/1,000,000,000** <br /> W = 432x 10-5xCforQ = 36gpm <br /> **Use 1,000,000 for determination of average lbs/day of TPH <br /> The next monthly status letter will include the interval April 16 through May 15, 1992 <br /> Please call me at (916) 444-0123 if you have any questions regarding the groundwater <br /> extraction system at ARCO Station 2133 <br /> Sincerely, <br /> BROWN AND CALDWELL CONSULTANTS �. <br /> D GE0, <br /> ti G' <br /> Steven D Misner �J� -Luc s LUCAS <br /> � Pio CAS E <br /> Project Manager aliforrna 1 ,stered Gedi t-#4301 <br />- --_ -- SDMJLmkw ---- -- - - - - - - -- -- - - — - `CrC:1` �' - - -- - _ - <br /> Enclosure <br /> cc Ms Mary Meays, San Joaquin C6-unty <br /> Ms Elizabeth Thayer, Regional Water Quality Control Board <br /> Mr Frank Tucker, City of Stockton <br /> Mr Chris Wiisor, ARCO Products Company <br /> Brown and Caldwell 6673'4--ORRESP,6673-04 LTR <br /> Consultants <br />