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T�1 • y .. Soil Vapor Extraction System-Performance Data 4� ARCO 4932 16 East Harding Way,Stockton,California TPH as GasolIneBenzene MtBE s�C ,��-FID r_ Inflbent N _ a Influent MtBE --Hour Meter Diluhon� Blower- Well'Field- Concen-Removal Net "- Removed Concen-Removal Net Removed Concen- Removal Net Removed Samples;Date" - Reading gValve Vacuum Flow Rate- !Influent'" Etfluen �tration Rate -Removed`to Date tration "Rate Removed to Date trabon Rate Removed to Date ID� Sam°fed �Th -z %O`en ,H � ' scfff my 4 my p my Ibslda ands ands ppmv (Ibslda ) (pounds) ands (p my) (Ibslda (pounds) (pouaLsj -- 05/14/03 a 10 100% -- — 50,000+ — 0 0 0 0 0 0 0 0 0 0 0 0 INF 05!29103 b,g 252 0% 13 1502 48,000 1 1 16,000 962 485 485 190 89 45 4 5 2,100 3 3 1 7 1 7 INF 07/08/03 c 260 2% 200 1372 20,000 1 1 17,000 934 32 517 200 86 0 3 4 8 4,200 71 01 18 — 07/11/03 d,f 320 — — — — — — — 233 751 -- -- 21 6 9 — — 1 8 36 OTAL POUNDS,REMOVED ,,,'; r k,_� � w" r, � 4 ,. 7505 69 357 MAL GALLONS REmbVED w�= * r` 123 0 _ _u 1 0 9 0 56' Definitions Notes scfm =Standard cubic feet per minute a System startup and shake-down lbs =Pounds b Source test for San Joaquin Valley Unified Air Pollution Control District performed — =Not analyzed c Pemtananent system start up ppmv =Parts per million by volume d System down on arrival TPH =Totai petroleum hydrocarbons a System shut down for carbon changeout "Hg =Inches of mercury f System restarted FID =Flame Ionization Detector g Analyte values given were analyzed beyond the EPA recommended holding time The analysis was performed because the original analysis detected an analyte in the associated black as well as in the sample Chemical Pro erties Density of benzene=7 34 pounds per gallon Density of gasoline=6 1 pounds per gallon IlDensity of MtBE=6 18 pounds per gallon I IARCOW93M&MARCO 4932 O&M Tables 3003xis Page 1 of t