Laserfiche WebLink
TABLE 1 <br /> HISTORICAL GROUNDWATER SOUNDING DATA <br /> Port of Stockton Former UST Site No.3,San Joaquin County <br /> WellDate Aeptlt To Casmg Top Water`Ta61e Avg Flow Direction <br /> Elevation'(Ft) Eleyahan t &Gradient(Ft/Ft) <br /> Number Sounded Water(Ft), ) <br /> � f <br /> :.. -.Froin -asin se <br /> MW3-2 07/09/99 10.89 9.22 -1.67 <br /> 10/22/99 11.80 -2.58 <br /> 02/08/00 10.89 -1.67 <br /> 05/17/00 9.67 -0.45 <br /> 09/14/00 11.46 -2.24 <br /> 02/14/01 11.12 -1.90 <br /> 5/17/01 10.68 -1.46 <br /> 08/22/01 15.50* -6.76* <br /> 12.48** -3.26 <br /> 11/19/01 12.77 -3.55 <br /> 2119102 10.85 -1.63 <br /> 5116/02 11.37 -2.15 <br /> MW3-3 07/09/99 10.39 8.74 -1.65 <br /> 10/22/99 10.88 -2.14 <br /> 02/08/00 10.23 -1.49 <br /> 05/17/00 9.29 -0.55 <br /> 09/14/00 11.29 -2.55 <br /> 02/14/01 11.35 -2.61 <br /> 5/17/01 10.14 -1.40 <br /> 08/22/01 12.05 -3.31 <br /> 11/19/01 12.37 -3.63 <br /> 2/19/02 10.30 -1.56 <br /> 5/16/02 10.88 -2.14 <br /> *Started pumping on MW 3-1 while gauging MW 3-2. The water level in well MW 3-2 appears to have been <br /> depressed. <br /> **After the sampling,well MW 3-2 was allowed to recharge and the depth of water was found to be 12.48 feet below <br /> the casing elevation. <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 16,2002 and analyzed for TPHg <br /> by EPA Modified Method 8015, aromatics: benzene, toluene, ethylbenzene, and total xylenes <br /> (BTEX) constituents by EPA Method 8260. <br /> The results of all current and previous groundwater sampling analyses are summarized in Table 2. <br /> PET laboratory reports and chain-of-custody are included as Appendix B. <br /> L_ <br /> 11th qtr W sheldoc 6 <br />