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Rom _10-1 at <br /> ' <br /> 1-1 <br /> 1 <br /> I <br /> Emm and Caldwell <br /> ConsOtants <br /> 723 S Sux+:t <br /> �zcrx:rem� <br /> s,,;,-;� Cxllom�a4561�-;042 � <br /> .916)444-,123 <br /> C•5',54 4,4.6337 <br /> November 8, 1991 <br /> Mr. Chuck Carmel <br /> ARCO Products Company <br /> 2000 Alarneda de las Pulgas 017-56go-0311 <br /> Post Office Califo911 94402 <br /> San Mateo, CO Station 2133, <br /> Status of Groundwater Extra <br /> ctson System, AR <br /> Subject' California <br /> Stockton, <br /> Dear Mr. Carmel: <br /> erourdwater extraction systeStation 21336llt,cated at <br /> resents the current status o CQeProducts Company (ARI`�) <br /> This letter p e sampling at AR chzonologiy below is a summary <br /> groundwater discharg C,lifornia. Listed tember 16 through <br /> 2908 Benjamin Halt Drive in Stockton a of groundwater at the site from Sep <br /> of the activities related le the resents a summary of the detected constituents for the extraction <br /> October 15, 1991. Tab P <br /> system. analysis of ot3i petroleum <br /> Sample for enzenlaboratorytoluene, and xylenes (BF and <br /> 9125191 Collected effluent water nzen lbenzene, } <br /> hydrocarbons (TpH) and benzene, ethy <br /> metals. <br /> H. <br /> 10/9191 Sampled extracrlon system for B� and TP roximately 10.1 gallons ; <br /> g period (30 days)was app' <br /> flow during this repo 436,0(1i1 Itons. <br /> The average daily riod was <br /> per minute. The total t7ow for this Pe to the <br /> e pounds per day of each constituent discharged `f <br /> The following calculations show averag <br /> sanitary sewer. <br /> Q _ Average <br /> floty rate, gPm ` <br /> _ Concentration, r.1. lbs/day <br /> Average amount of chemical discharged, <br /> W = 0.000123 C for Q- 10.1 gpm <br /> W _ <br /> Q x 1,440 x 8.34 x C1(1,000,000,000) <br /> S:L56904c6'MVV 569003.1 <br />