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TABLE 1 <br /> VMP Sampling(September 28,2000)at Phase III SVE Startup <br /> Applied Aerospace Structures Corporation,Stockton,CA <br /> Concentrations in VMP soil vapor sam les(mg/m3)A <br /> Conc.Total % Conc.Total % <br /> Sample 1,1,1- 1,1- 1,2- Totals VOC on Increase VOC on Increase <br /> Location 1,1-DCE TCA DCA DCA TCE PCE (3/1/00 (3/4/99 <br /> (mg/m3) 3/1/00 to 3/4/99 <br /> (mg/m3) 9/28/0m3) to <br /> 0) (mg/m3) <br /> Detection limiti 0.40 0.55 0.41 0.41 0.54 0.68 <br /> .................... .................... .......... <br /> VMP-1-15 1.9 1.9 1.1 72.7 72 -97.4 <br /> VMP-1-34 6.3 6.3 1.0 530 776 -99.2 <br /> VMP-145 110 (5.31115 NS NS -- • <br /> VMP-2-15 0.60.6 ND + 15 -96.0 <br /> VMP-2-34 0.4 0.4 ND + 77 -99 <br /> VMP-2 45 0.7 0.7 ND + NS --- <br /> VMP-3-27 2.9 3.0 5.9 2.0 195 60 -90.2 <br /> VMP-3-36 1336 49 78 -37 124 -60 <br /> VMP-3-41 19 39 58 113 -49 153 -62 <br /> ::::: :: :: :::::VMP-3 41 25 49 74 70.4 6 - - <br /> .................... .................... .................... <br /> VMP-4-22 ND 4.5 -100 NS -- <br /> VMP-4-37 0.7 0.7 4.8 86.3 187 99.6 <br /> VMP-4-45 Sample Not Collected-screen obstructed NS 6.8 -- NS --- <br /> .......... .................... .................... <br /> VMP-5-23 0.89 0.9 1.0 11.0 512 99.8 <br /> .................... .................... .......... <br /> VMP-5-38 25 2.8 28 34 -18 834 -97 <br /> 24 2.7 <br /> B e :::::::::e:::::::::a :::::::::a:::::::::e <br /> VMP-5-38 34.5 35 30.8 12 <br /> VMP-5-48 Sample Not Collected-screen obstructed NS 2.3 -- NS --- . <br /> VMP-6-37 20 2.3 22 28.5 -22 790 97.2 <br /> VMP-6-48 Sample Not Collected-screen obstructed NS NS --- NS <br /> Chemical abbreviations: DCE=dichloroethene,TCA=trichloroethane,DCA=dichloroethane,TCE=trichloroethene,PCE=tetrachloroethene, <br /> TMB=trimethylbenzene,McCI=Methylene Chloride <br /> Concentrations determined by Method TO-14;analytes not listed were not detected. <br /> ° Summa canister confirmation samples collected on 9/28/00. Fixed base laboratory method detection limits were 1,1-DCE=0.06 to 0.3 mg/m3; <br /> 1,1,1-TCA=0.08 tp 0.4 mg/m3;TCE=0.08 tp 0.4 mg/m3;1,1-DCA=0.06 to 0.3 mg/m3;1,2-DCA=0.06 to 0.3 mg/m3;PCE=0.09 to 0.5 mg/m3 <br /> Not detected <br /> NS Not sampled <br /> 0 Not applicable <br /> 0 increase was positive,but the percentage is unknown <br /> Note: Units in mg/m3. Conversion to ppmv is chemical specific: divide by 4.03 for ppmv 1,1-DCE and 5.53 for TCE. <br /> As-tune3.xls:VMP analyses-Sept.'00 1/10/01 <br />