Laserfiche WebLink
The three monitor wells were completed with 20 feet of 2-inch ID 20 slot PVC screen, sand <br /> pack, bentonite seal and cement bentonite grout. The wells were completed with flush mount <br /> Christie boxes The wells were developed on August 11, 1994 and sampled on August 19, 1994 <br />' for analysis of BTEX and TPH-D. A field rinse blank sample labeled (MW-5) was collected <br /> to check on field decontamination procedures. This quality control sample was analyzed for <br /> BTEX compounds, <br />' Two groundwater samples were also collected from the soil borings HP-1 and HP-2 using a <br /> Hydropunch® groundwater sampling tool, which was pushed through the bottom of borings The <br /> groundwater samples were analyzed for TPH-G and TPH-D. <br />' All samples were delivered with chain-of-custody documentation to WESTON's analytical <br /> laboratory in Stockton, Cahfornia. At the conclusion of sampling, the borings were grouted <br />' from the bottom to the top with a 5% bentonite/cement mixture At the conclusion of the field <br /> program the well heads were survey`ee fbr elevation to tie water level measurements to MSL <br /> elevation <br /> 1 A detailed discussion of field procedures is presented in Appendix A while soil boring lithoiogic <br /> logs are presented in Appendix B. <br />' 3.0 ANALYTICAL RESULTS SUMMARY <br /> The results of the soil and groundwater analyses are summarized in Tables 3 and 4 while the <br /> complete laboratory reports are presented in Appendix C. Samples scheduled for TPH-G and <br />' TPH-D were analyzed by EPA Method 8015 modified while samples scheduled for BTEX <br /> analysis were analyzed by EPA Method 8020 <br /> TABLE 3 <br /> Soil Analytical Results Summary <br /> San Joaquin County Mosquito and Vector Control District Facility <br /> 7759 S. Airport Way, Stockton, California <br />' Location ID Depth Benzene Toluene Ethylbenzene Xylene TPH-D TPH-G <br /> (feet b s) mQ/K m /K mg/K mg/Ke <br /> 1 SB-1-15' 15 ND ND ND ND 71 - <br /> SB-1-20' 20 ND ND ND ND 58 - <br />' SB-1-25' 25 ND ND ND ND 61 - <br /> SB-1-30' 30 ND ND ND ND 45 <br /> SB-1-45' 45 ND ND ND ND 110 - <br />' SB-2-15' 15 ND ND ND ND 23 = <br /> SB-2-20' 20 ND ND ND ND 2 8 <br /> SB-2-25' 25 ND ND ND ND 21 - <br />' SB-2-30' 30 ND ND ND ND 66 - <br /> SB-2-45' 45 ND ND ND ND 100 - <br />' HP-1-8' 8 - - - - ND ND <br /> HP-1-12' 12 ND ND <br /> HP-2-8' 8 - - - - 59 ND <br /> HP-2-12' 12 - - - - 30 ND <br /> bgs =below ground surface <br /> ND = Not detected <br /> - = Sample not analyzed for this parameter <br />' M\RPrswCMVCDI MX 6 ion m <br />