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Table 2 Dual Phase Extraction System-Sall Vapor Extraction Performance Data ARCO 4932 16 East Harding way Stockton California TPH as Gasoline Benzene MtBE Well Field well Field FID Influent Influent MTBE Hour Meter Dilution Blower Manifold Manifold well Field Well Field Concern Removal Net Removec ConCen-Removal Net Removed Conoen- Removal Net Removed Sample Date Reading Valve Vacuum Vacuum Temperature Flow Rate Flow Rate Influent Efflueril tration Rate Removed to Date tration Rate Removed to Date tration Rate Removed to Date ID Sampled (hours) (%Open) (Hg) ("H2O) (°F) (acfm) (scfm) (ppmv) (ppmv) (ppmv) (lbs/day) (pounds) (Pounds) (ppmv) (lbs/day)(pounds) (pounds) (ppmv) (lbslday) (pounds) (pounds) 05114/03 a 10 100% — — 50 000+ — 0 0 0 0 0 0 0 0 4 0 0 0 INF 05129/03 b c 252 0% 13 402 — 1502 135 48 000 1 1 16 000 811 409 409 190 76 38 38 2 100 95 48 48 INF 07/08/03 d 260 2% 200 — — 1372 120 20 000 1 1 17 000 766 26 435 200 71 025 41 4200 169 44 52 INF 08/07103 3987 0% 10 60 821 2062 169 43 500 0 21 6 100 385 8 936 9 371 24 12 65 69 210 12 1 403 1 455 — 09/05103 e — — — -- — — INF 09/09/03 f 1 020 8 0% 15 136 801 1627 104 7 800 0 00 2 900 113 6 459 15 831 <3 2 01 17 86 28 10 166 1 621 — 10/09/03 1 724 3 0% 155 — — — — 550 0 — — 1993 17 823 — — 2 88 — — 32 1 653 WF 10/23/03 2 055 8 0% 13 — — 138 98 1 500 0 620 23 939 18 762 <1 6 00 1 89 37 12 15 1 668 40/29/03 2 203 6 0% 14 — — 165 117 1 100 25 — — 260 19 022 — -- 0 89 -- — 5 1 673 11105/03 2 251 5 0% 14 — -- 110 78 1 000 45 — — 84 19 107 — — 0 89 — — 1 1 674 INF 11113/03 g 2 325 6 0% 15 80 771 1767 137 1 1800 00 1200 62 130 19 237 <1 6 01 0 89 <5 6 03 2 1 676 INF 12!03103 2 804 9 0% 15 140 — 1900 121 3 800 0 00 630 28 901 20 138 <0 16 00 1 90 1 9 01 3 1 680 REPORTING PERIOD Fourth Quarter 2003(9!912003 to 121312003) TOTAL POUNDS REMOVED 20,178 90 1,880 TOTAL GALLONS REMOVED 3,301 12 272 PERIOD POUNDS REMOVED 4,3075 45 69 PERIOD GALLONS REMOVED 7081 08 11 TOTAL AVG FLOW RATE 120 scfm TOTAL PERCENT OPERATIONAL 78% PERIOD PERCENT OPERATIONAL 87% Definitions Chemical Properties scfm=Standard cubic feet per minute Standard conditions 60`F 1 atm Itis=Founds Vapor density of gasoline=0 26 pounds per cubic feet(assumes molecular weight of gasoline is 100 pounds per pound mole) =Data not available Vapor density of benzene=0 206 pounds per cubic feet ppmv=Parts per million by volume Vapor density of MtBE=0 232 pounds per cubic feet TPH =Total petroleum hydrocarbons Liquid density of benzene=7 34 pounds per gallon "Hg=Inches of mercury Liquid density of gasoline=6 f pounds per gallon FID=Flame Ionization Defector Liquid density of MIBE=6 18 pounds per gallon j Notes a System start-up and shake-down b Source test far San Joaquin Valley Unified Air Pollution Control District performed c Analyte values given were analyzed beyond the EPA recommended holding time The analysis was perforTned because the onginal analysis detected an analyte in the associated blank as well as in the sample d Permanarient system start up e SVE system shut down due to a car running into the compound f SVE system restarted Autodialer installed I MC04493250&MV4RCO 4932 0&M Tables 1004 Page 1 of t