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I 1111,1111,1, N I Table 1 + Vapor-Extraction Test Monitoring Data ARCO Station No. 2130 7906 North E1 Dorado Street, Stockton, California ' (December 30, 1991) ` Air Stream Conditions for Extraction Weil VW-1 Observation Well Data F Vapor Sample collection and An Time Air Air Air Vacuum OVA VW 2 vW3 VW-4 '- a1 Velocity Flowrate T Vapor 1F119 Renzene Toluene Ethyl- Total �P• Cane. Vacuum Vaeuu Vacuum Sample Na. Benzene Xylenes, (efm) (F) (in N20) (ppnv) (in H2O) (in H2O) (in H2O) (aKrlm^3) (n�/nis) (mg/m'3} (mg/m'3) (my/m^3) 00:00 4750 104 61 67 9,500 0.04 0.84 0.50 HR HR NR HR NR NR 10:30 5,100 111 62 78 NR 0.04 0.84 0.51 AS-1230-INF7 43,000 1,500 1,200 59 120 11:00 5,000 109 62 75 NR 0.045 0.05 .52 "I NR NR NR NR HR NR 0 11:30 5,00(} 109 62 75 NR 0.035 0.84 0.50 MR HR NR NR HR NR44 J 12:Op 5,000 109 62 75 NR 0.04 0.88 0.54 NR NR HR NR NR HR i s ` 12:30 ;,000 109 62 75 NR 0.04 0.88 0.54 AS-1230 EFF1 7,500 120 52 5.2 17 fl 12:30 5 000 t09 62 75 10 OQO 0.04 0.88 0.54 AS-121 64 000 2,100 1 60D 67 190 Distance from Vapor-Extraction Well VW-7 (feet): 128 25.5 39.7 } i4Y Air Stream Conditions for Extraction Well VW-4 Observation Well..Data Vapor Sample Collection and Analysis �V( Time Air Air Air Vacuum OVA VW-1 VW-2 VW-3 Vapor lr°Hg 0enzenc Talucnc Ethyl fatal Velocity Flowrate Iegg. Cone. Vacuum Vacuum Vacuum Sample No. (fpm) (efm) (F) (in H2O) ( mv) (in N20) (in N203 (in H2O) 8enzene xylenes (nMJ/ui 3} O+xJlui 3) (mg/m'3} Cn9/rn'3i (rrKJ/m"3) 13:38 4,750 104 63 68 10,000 0.56 0.10 1 AS-1230.1NF3 100,000 6,6DQ 6 ODO 340 930 p� 14:00 4,450 97 63 60 NR 0.70 0,185 1.31 NR NR NR NR HR NR 14:30 4,500 98 63 62 HR 0.73 0.160 1.42 NR NR WR HR 15:00 4,550 99 63 63 NR 0.79 0.19 1-51 NR HR RR HR HR � HR NR HR ' 05:30 4 550 94 63 63 NA 0.79 0.19 1.51 NR HR NR NR NR HR r l 16:00 4 550 99 63 63 HR 0.79 0.19 1.51 NR HR NR HR NR NR I 16:30 !MR NR NR NR RR NR NR HA AS-1230 EFF<" BID 89 41 21 16:30 'NR NR NR NR NR NR NR NR AS-1230-INF4 52,000 1,700 1,100 67 5.5./ 190 l Distance 21 from Vapor-Extraction Well VW-4 (feet): 39.7 89 18.5 Nates: Iii fpm= feet per minute HR = Not Recorded Sampie designation: efm = cubic feet r minute AS -1230•INFI: V Pe NA = Not Analyzed PPmVr = parts per million by volume TPllg = lotal PetroleuAS = Air 5an(rlcn Hydrocarlwns = in H2O= inches of water column reported as gasoline 1230 Sample Date m,_,/m'3 milligrams INF1 = Influent air sample 9 per cub[c nKter nrarber ,;- j EFF1 = Effluent air sample number I Roti I I I I a� 0109ccar I ;; 30003-5 d a 7 I i I ,I