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RI
<br /> Table 1(Continued)
<br /> Petroleum Hydrocarbon Recovery Monitoring jJune 1993 -July 1 S951
<br /> 141 N.EI Dorado Avenue,Stockton,CA
<br /> Soil Vent System with Granulated Activated Carbon
<br /> Date Wells Fresh Sol Vapor AMbw AlMow TPH Concentration Benzene TPH TPH cumul.TPH
<br /> Open to Ai Valves Ewectlon (aWJ (av9•) influent Influent Extraction Fadraction F)macbon
<br /> Venting Candbon Vacuum Rate Rate Estimate
<br /> 44 In.pipe) (FID.svg.) (�) (�) (FID) (�) (�) Comments
<br /> (in.H201 (ACFM) (SCFM) ( prw) (ppmv) (ppmv) (lbsJday) (ibslda) (lbs)
<br /> 1194 -1,2,3,4 closed 43 137 123 44 51 0.41 1.8 2.1 1406
<br /> 6113194 EV61-1,2,3,4 Closed -43 137 126 40 1.6 System shutdown(6113-7/8194)for
<br /> 61t3-718184 remedloWn system modification
<br /> 7111194 EW-1,2,3,4,W* partially open -31 163 137 56 24 ND(t0.18) 2.7 1.2 1405-
<br /> arl"41 1,2,3,4.MW- psMolly open -10 97 95 40 45 ND(40.0111) 1.2 1.4 1462
<br /> 9120044 Ev1W1,2,3,4,Mw- closed .30 145 130 38 45 ND(<O.016) 1.6 1.9 1508
<br /> 10041+4 EW-1,2,3,4,MWW- closed -36 145 138 28 34 ND(<o.0le) 1.1 1.8 1832
<br /> 11040+94 1,2,3,4,MW. Closed -38 112 130 11 9.4 ND(40.016) 0.5 0.4 1573
<br /> 11129-120W94
<br /> System shut down due 10 electrical
<br /> 1213004 1,2,3,4,MW- closed -33 142 130 37 ND(40,080) 1.5 1580 problem on control panel(112412116194)
<br /> 1130185 EW-1,2,3,4,MW- closed -39 135 126 20 12 ND(�011til) 0.8 0,5 1603
<br /> 217198 EWV-1,2,3,4,MW closed -43 135 1211 11 15 ND(sO.016) 0.4 O.8 1607
<br /> 3190 1816 Shut dam systeuNstart pulslnp
<br /> S EVV-1,2,3,4,MW- closed -38 141 131 18 12 0.038 0.8 0.8 1618Restarted system
<br /> Wam 1,2,3,4,MW- closed 14 Shut down system after monitoring
<br /> 4110790 EW-1,2,3,4,MW- closed -40 127 115 38 15 ND(<0.016) 1.4 0.6 1624 Restarted system,sampled after app.1 hr.
<br /> 41.25785 1,2,3,4,MW closed 15 Shut dawn system after monitoring
<br /> 1IM5 EVV-1,2,3,4,MWW- dosed -40 132 130 10 9.9 ND(�OA10) 0.4 0.4 1832 Restarted system,sampled after app.1 hr.
<br /> 91=5 EW-1,2,3,4,MVu- closed Shut dam system after monitoring
<br /> 617190 1,2,3,4,MVV- closed -44 132 131 i5 12 ND(40.018) 0.7 0.5 1540 Restarted system,sampled after app.1 hr.
<br /> EW-1.2,21.4,ML closed Shut down syatsm alter monitoring
<br /> 7!3195 t,2,3,4,MVV- dosed -38 133 129 25 16 ND(4.016) 1 0.7 1846 Restarted system,sampled after app.1 hr.
<br /> J
<br /> Nobel:
<br /> System conalsts of one regenemllve blower with 5 hp motor and two 2000 Ib WAC units in sorbs(Unt 1 and Unit 2)
<br /> System start-up was conducted by Aegis!environmental(now Fugm West,Inc.)on 5123193. System was previously operated by Rastrs Indudrlsa
<br /> svg.■average of three sets of measurements collected at 15 minute lnbrvals
<br /> GAC■granular acd4fAd carbon
<br /> Airflow measured between Carbon Unit 1 and Unt 2*Hassel bn 7111!94 and 11123194. AiOow measured at Um vara wall mantoid on M 0494 and WNW
<br /> influent=pdorto Unit 11309 vent blower discharge
<br /> TPH-total petroleum hydrocarbons as gasoline
<br /> ppmv-parts per million by volume
<br /> FID-neld measurement from Items Ionization dotechor calibrated to hexane(Modef:Century OVA 128 by Foxboro Company)
<br /> LAB■laboratory analysis
<br /> ND■not detected at radiated reporting Ilett
<br /> ACFM■actual cubic loot per minute
<br /> SCFM■standard cubic feet per minute(at 29.92 Inches mercury, and 70 deg.F)
<br /> Cumulative extraction is calculated by averaging extraction Mise for consecutive sampling events and summing up previous bola!
<br /> -Cumutatve TAH extractors calculations do not Include TPH eytractlon behveen 117-1127 8 7111.7111194
<br /> For cumulative TPH extraction calculation attar 120004,system operation hours are estimated based on Ifeld observations
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