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Mr Chuck Carmel • • <br /> February 16 1993 <br /> Page 2 <br /> W = Q C 1 20 ♦ 10-5 <br /> where <br /> W = Averaue amount of chemical discharged lbs/dav <br /> Q = Avera4ae flow rate gpm <br /> C = Concentration. ug/l <br /> 1 20 x 10-5 =(minutes/day x lbs/gallon)/1,000.000 000** <br /> W = 2 5 x 10-5 x C for Q = 2 1 gpm <br /> **Use 1,000 000 for determination of average lbs/day of TPH <br /> The next monthly status letter will include the interval December 16, 1992, through <br /> January 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 /> /teven D Misner awrence E Phillips <br /> Protect Manager California Registered Geologist #3710 <br /> SDM LEP lk <br /> Enclosure <br /> cckps 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 cx67cox►�s7s cu <br /> Consuitants <br />