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TABLE 4 <br /> GROUNDWATER EXTRACTION SYSTEM PERFORMANCE DATA <br /> Former Chevron Service Station 9-5775 <br /> 301 West Kettleman Lane <br /> Lodi,California <br /> TPH as Gasoline Benzene MtBE <br /> B€-weekly Average Influent Influent Influent <br /> j"Iblalizer -Volume Discharge Concert. Removal Net Removed Concen- Removal Net Removed Concen Removal Net Removed <br /> Sample Date Value D€sohaMed Rate tration Rate Removed To Date tratlon Rate Removed To Date tratlon Rate Removed To Date <br /> lD Sampled Notes Ions o- Iom m lbs/da (pounds)-(Pounds) lbs/da (pounds) (pounds) L lbs/da (pounds) (pounds) <br /> INFL 03/18/03 6,262,997 124,021 680 <50 000 004 87 <2 00001 0 001 0 2 15 000 002 847 <br /> ]NFL 04/01/03 6,398,966 135,969 669 <50 000 004 87 <2 00001 0 001 0 2 15 000 002 848 <br /> INFL 04/15/03 6,532,724 133,758 669 <50 0 00 004 8 8 <2 00001 0 001 02 16 000 002 848 <br /> INFL 05/06/03 6,735,729 203,005 668 ... 000 006 88 --- 00001 0 002 02 --- 000 002 $48 <br /> INFL 05/20/03 6,860,993 125,264 651 <50 000 004 89 <2 00001 0 001 02 14 000 001 848 <br /> INFL 06/05/03 6,915,299 54,306 416 <50 000 002 89 <2 00000 0 000 02 14 000 001 848 <br /> INFL 06/18/03 7,104,669 189,370 584 <100 000 006 89 <2 00001 0 002 02 17 000 002 848 <br /> INFL 07/14/03 7,323,933 219,264 728 X100 000 007 90 <2 00001 0 002 0 2 15 000 003 849 <br /> INFL 08/20103 7,643,074 319,141 593 <50 000 010 91 <2 00001 0 003 02 9 000 003 849 <br /> INFL 09116103 7,847,864 204,790 669 <50 000 006 92 <2 00001 0 002 02 9 000 002 849 <br /> INFL 10/22/03 8,186,420 338,556 5 99 <50 0 00 011 93 <2 00001 0 003 0 2 9 000 003 849 <br /> INFL 11/14/03 8,408,409 221,989 660 <100 0 00 007 94 <2 00001 0 002 02 9 000 002 850 <br /> INFL 12!11103 8,663,405 254,996 6 62 <50 000 008 94 <2 00001 0 002 0 2 <2 coo 001 850 <br /> REPORTING PERIOD:;FO RTH Ul 2003 <br /> PERIODWAIER,DTSCHAi3 EDt atfoos. 815,541 <br /> AVERAGE PERIOD'DISCW R � pm) 6.4 <br /> TOTAL POUNDREMO�V� 94 0 2 850 <br /> Td�TAL GALANS, <br /> Ll m4AOVED: 15 00 13 7 <br /> PI D�POUN6S RE OVEDR 03 00 01 <br /> PERIOD GALL&iS RIW'__ 00 00 00 <br /> EXPLANATIONS Notes <br /> pglL=Micrograms per liter a System started by Gettler Ryan <br /> OPM=Gallons per minute b Data prior to November 1 2000 collected and reported by Gettler Ryan <br /> Ibstday=Pounds per day c Weekly 08M not performed on November 15 and 22 2000 due to system upgrades and aquifer test <br /> TPH a Total petroleum hydrocarbons d Start up of extraction welt EX 3 <br /> Density of gasoline=6 1 pounds per gallon a "Weekly Volume discharge volume raters to total through put volume between 11108 to 11/29 2000 <br /> Density of benzene=7 34 pounds per gallon Actual weekly discharge vaned significantly due to aquifer test performance <br /> Density of MtBE=6 18 pounds per gallon I Weekly O&M not Performed on February 14 2001 Carbon vessels A B and C Changed out <br /> MtBE--Methyl ternary butyl ether system hoses changed and vessels pressure washed <br /> g Carbon Vessel A changed-out <br /> h New totalizer installed <br /> I Pump in EX 3 replaced System down approximately 2 hours <br /> ASSUMPT1oNs <br /> 1) Percent carbon loading calculation assumes a loading isotherm of 3%by welght <br /> 2)Mass removal calculations assumes conCentraftZ of one half the delecton limit <br /> when concentrations are reported as bekrw detection limits <br /> IJChevrorV9577&7ables/Gwe-qpr x1s 5 of 5 <br />