Laserfiche WebLink
Metadata
Document management portal powered by Laserfiche WebLink 9 © 1998-2015 Laserfiche. All rights reserved.
TABLE I <br /> HISTORICAL GROUNDWATER SOUNDING DATA <br /> Port of Stockton Former UST Site No 3, San Joaquin Count <br /> Well Date Depth To Casing-Top Water Table Avg Flow Direction <br /> Number Sounded Water(Ft) Elevation(Ft) Elevation(Ft) &Gradient(Ft/Ft) <br /> From Casing <br /> 09/14/00 1129 -255 <br /> 02/14/01 1135 -261 <br /> 5/17/01 1014 -140 <br /> Well Sampling and Monitoring Logs are included as Appendix B <br /> Groundwater Sampling and Analyses <br /> Groundwater samples collected from the monitoring wells on May 17, 2001 and analyzed for TPHg <br /> by EPA Modified Method 8015 and for aromatics including benzene, toluene, ethylbenzene, and <br /> total xylenes (BTEX) by EPA Method 8260 No gasoline as free product was observed In any <br /> well <br /> The results of all current and previous groundwater sampling analyses are summarized in Table 2 <br /> PET laboratory reports dated May 18, 2001 and chain-of-custody are included as Appendix B <br /> TABLE 2 <br /> ANALYTICAL DATA GROUNDWATER <br />' Port of Stockton Former UST Site No 3, San Joaquin County <br /> Results reported in l Parts per billion= b <br /> Well Date TPHg Benzene Toluene Ethylbenzene Xylenes MTBE <br /> Number Sampled EPA 8015-m EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 <br /> MW3-1 07/09/99 610 18 302 236 791 N D <br /> 10/22/99 2,750 270 120 49 390 N D <br /> 02/08/00 1,800 1 2 85 30 180 N A <br /> 05/17/00 180 1 20 82 38 428 N A <br /> 09/14/00 400 11 11 6 0 44 N A <br /> 02/14/01 420 3 0 29 8 3 24 N D <br /> 5/17/01 1,288 187 55 40 162 N A <br /> MW3-2 07/09/99 640 119 296 219 666 N D <br /> 10/22/99 4,100 49 270 50 320 N D <br /> 02/08/00 3,200 153 380 122 200 N A <br /> 05/17/00 790 64 174 19 181 N A <br /> 1 09/14/00 6,600 150 660 370 530 N A <br /> 02/14/01 7,000 215 1,115 315 870 N D <br /> 5/17101 4,170 132 626 120 796 N A <br /> M W 3-3 07/09/99 8,420 113 2,506 886 1,772 ND <br /> 10/22/99 7,220 207 680 221 1,360 ND <br /> 02/08/00 4,500 15 0 460 180 880 NA <br /> LS[S11C2 qtr?dOL 6 <br /> 1 <br />