SITE INFORMATION AND CORRESPONDENCE_FILE 2

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TABLE 2b REMEDIATION PILOT TEST VACUUM ("WC) AND DEPTH TO WATER (feet bgs) Barnes Trucking, 1817 South Fresno Avenue. Stockton, California Wellhead Vacuum ("WC) Induced Vacuum ("WC &/or De th to Water (feet bes) 0 z DPW-1 MW-7 MW-10 MW-Il IW-3 IW-5 IW-6 IW-8 IW-9 MW-5B IW-2 IW-6 IW-7 IW-8 DTW DTW T DTW DTW DTW DTW DTW DTW Date & Time WC feet bgs "WC feetbas "WC feet b s "WC feet bgs "WC feetb s "WC feetb s "WC feetb s "WC feetb s "WC feetb s 11 /20/1310:00 1 9. 1 51 .2 23. 1 0.0 11 .36 0.0 11 .22 0.0 11 .62 0.0 11.26 0.0 11 .20 0.0 11 .00 0.0 10.87 11 /20/1316:00 10.2 53.0 24.4 0.0 12.67 0.0 11 .91 0.0 12. 13 0.0 11 .53 0.0 11 .74 0.0 11 .83 0.0 11 .0" 12/3/13 7:00 2 28 70 29 0.0 11 .98 0.0 I1 .04 0.0 11 .74 0.0 11 .87 0. 1 11 .23 02 11 .43 1 .5 11 .2 0.3 10.91 12/3/ 13 8:30 30 70 32 0.2 12.27 1 0.0 1 11 . 14 0.0 12.01 0.0 12.04 0.0 11 .43 1 0.0 11 .65 0.0 11.68 1 0.0 1 11 . 13 12/4/13 6:00 3 34 1 60 1 -- 32 -- 0.0 I2,82 0.0 11 .51 0.0 12.86 0.0 12.42 0.0 12.40 0.0 12.01 -- -- -- -- 0.3 12.30 12/9/13 7:30 4 - 12/10/13 6:00 5 31 .6 60 -- 22.5 1 .3 12.78 11 .45 0.0 12.32 0.0 12.31 0.0 11 .70 0.0 11 .90 0.6 12,63 12/11 /13 7:30. 6 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 12/12/13 6:00 34 53 19 7.3 12.93 0.0 11 .55 0.0 12.48 0.0 12.44 0.0 1 11 .90 1 0.0 12.05 1 0.0 1 13. 15 0.7d1212/13/13 6:00 712/16/13 11 :40 8 24 33 - 10 Ll 73.46 0.0 11 .68 0.0 72.89 0.0 12J7 jO,0 12. 13 0.4 12.31 0.3 ] 3.65 t00.33 Avera e 1 .2 12.53 0.0 12. 18 0.0 12.20 .0ll .70 0.08 ] 1 .79 j03St ] 1 .88 Le end / Kev: 1 Vac = Vacuum bgs = below ground surface DTW = Depth to water - = nor applicable/ not measured "WC = inches of water column "' = See notes below wellhead vacuum reading obtained for multiple wells. fes• Stingers placed at 15-feet bgs in wells MW-53, IW-6 and IW-7 and 13-feet bgs in well IW-2. Well depth for MW-56 was recorded at 21.3 feet bgs, 1 W-2 25.2 feet bgs, IW-6 26.5 feet bgs, and IW-7 23.7 feet bgs and depth to water was 11 .06, 11 .00. 10.35 and 11.07 feet bgs, respectively. I Induced vacuum and depth to water field data was obtained, extractingfrom wells MW-56, IW-2, 1 W-6 and IW-7. 'I 2 Stinger depths modified in wells with MW-5B set to 11-fact, IW-2 set to 6-feet bgs, IW-6 set to 154eet bgs, and IW-7 set to 1441 t bgs. 3System modified with 1W-6 taken offline and IW4 brought online. Stinger depth in well IW-8 set to 16-feet bgs. All other stingers remained in place. System modified with stinger depth in wells IW-7 set to 15-feet bgs and PN-8 set to 17-1eet bgs. Wells IW-2 and MW-5B remained at 6-feet and 1 I -feet bgs, respectively. 5 Depth to water and vacuum in IW-6 .was reported at 12.93-feel bgs and zero, respectively. 6 System modified with stinger depth in wells IW-2 set to 11 -feet bgs and IW-7 set to 16-feet bgs. Wells IW-8 and MW-513 remained at 17-feet bgs, and I1-feet bgs, respectively. 7 System mod i reed with stinger depth in wells IW-2 set to 16-feet bgs, IW-7 set to 20-feet bgs and MW-513 set to 13-feet hie. Wells I W-8 runained at 174act bgs. 8 System modified with stinger depth in wells IW-2 set to 17-feet bgs, 1 W-7 set to 21 -feet bgs and MW-513 set to 14-feet bga Wells TW-8 remained at 17-feet bgs: - 7Usnines 7nakingTitSinainauscre=0 MOPE test fables Pagel of STRATUS