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p <br /> TRC-Alton Geosclence, Inc <br /> Dual-Phase Extraction Test Report Summary Sheet <br /> Quik Stop Market 14o 121 <br /> 1196 West Louis Avenue AQMDe NA <br /> Manteca,California NPDES4 NA <br /> DUAL-PHASE EXTRACTION PERFORNIA14CE <br /> Date(s)of Event(s) 817101 <br /> Total Operating Hours 800 <br /> Technology Used High vacuum liquid ring pump with Thermal Oxidizer <br /> MaxlMm Vapor Concentration(ppmv)for Recovery Well RW 1 4,82011 000 <br /> Max1Mm Vapor Concenwmata(ppmv)for Recovery Well MW 3 2,32011,240 <br /> Max/Min Flow Rare(c8n)for Recovery Well RW-1 66141 <br /> Max/Mm Flow Rate(cfm)for Recovery Wclt MW-3 60145 <br /> Max/Mm Vacuum(in Hg)for Recovery Well RW-1 220/210 <br /> M&VMm Vacuum(m Hg)for Recovery Well MW-3 20 7120 0 <br /> Total Recovery Volume(pounds/gallons)by Vapor 2I 7!3S <br /> LABORATORY ANALYSIS OF VAPOR SAMPLES <br /> Sample Result(ing/ms) <br /> Sample Time <br /> ID Date Sampled TPH • Benzene* Toluene* Ethyt Benzene* Total X ]encs• MTBE <br /> RW l MW-3 07-Aug 0 I 6 30 AM 3 900 250 N D N D N D N A <br /> RW 1 MW 3 07 Aug-01 1000 AM 2000 93 ND ND ND NA <br /> RW t MW 3 07-Aug 01 130 PM l 300 100 N D N D N D N A <br /> ADDITIONAL INFORMATION <br /> Analyzed by EPA Method 8020 <br /> ••=Analyzed by EPA Method 8015 <br /> 1]19J21 =milligrams per cubic meter <br /> cfm =cubic feet per minute <br /> in Hg =inches of mercury <br /> TPH g =total petroleum hydrocarbons as gasoline <br /> MTBE =Methyl tert Buryl Ether <br /> ND -not detectable <br /> NA —not analyzed <br /> ZI <br /> Prepared by �� & StaffGcologist TRC Project No 41.0319-02 <br /> Approved by - c,: `L�CGL'14acy L Walker R G Associate Submittal Date 7 Sep-01 <br /> rRc <br /> Customer-Focused Solutions <br />