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ylr Chuck Carmel <br /> February 16 199 <br /> Page 2 <br /> s <br /> Q \ C \ 120x 10-5 <br /> tik here <br /> W = Average amount of chemical discharLed lb,,/div <br /> Q = Average flow rate, gpm <br /> C = Concentration µg/1 <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 9-pm <br /> **Use 1000,000 for determination of average lbs/day of TPH <br /> The next monthly status letter will include the interval November 16 through <br /> December 15, 1992 <br /> Please call the at (916) 444-0123 of you have any questions regarding the groundwater <br /> • extraction system at ARCO Station 2133 <br /> Sincerely, <br /> BROWN AND CALDWELL CONSULTANTS <br /> S7�7 <br /> AW <br /> teven D Misner iaUen,, E Phillips <br /> Project Manager California Registered Geologist #3710 <br /> SDM.LEP.Ik <br /> Enclosure <br /> cc.tMI"s. 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 <br /> ZU-SUitants �7arcoxxEs 73 oar b <br />