Laserfiche WebLink
• s a � <br /> Table 2 -Groundwater Chemical Analytical Data <br /> Former Unocal Service Station#0123 <br /> 1034 Central Avenue <br /> Tracy,California <br /> Well/Sample Sample TOC DTW GWB TPHd TPHg Benzene Toluene Ethylbenzene Xylenes MtBE <br /> No Date (feet MSL) (feet btoc) (feet MSL) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> U-1 1216/00 4858 ---- ---- Well not monitored or sampled,inaccessible <br /> U-2 12/6/00 4831 9 64 38 67 37011 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <br /> U-3 1216100 48 89 10 03 38 86 390f1 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <br /> U-4 12/6100 4830 968 3862 3701" 149 368 <0 500 0 969 <0 500 <2 50 <br /> U-5 12/6/00 4967 1064 3903 360L1 <50 0 <0 500 <9 500 <0 500 <0 500 <2 50 <br /> U-6 12/6/00 4832 996 3836 430111 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <br /> U-7 12/6/00 4853 1006 3847 4201`1 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <br /> U-8 1216/00 4797 934 3863 290"' <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <br /> TB-LB 12/6/00 ---- ---- ---- <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <br /> Explanation. Analytical Method <br /> TPHg=Total Petroleum Hydrocarbons as gasoline TPHg,BTEX&MtBE by DHS LUFT Method <br /> MtBE=Methyl tert-Butyl Ether TPHd by DHS LUFf Method with Silica Gel Cleanup <br /> BTEX=benzene,toluene,ethylbenzene,xylenes <br /> TPHd=Total Petroleum Hydrocarbons as diesel <br /> ppb=Parts per billion Sequoia Analytical(ELAP It 1624) <br /> TOC=Top of Casing <br /> DTW=Depth to Water Notes, <br /> GWE=Groundwater Elevation lilReportcd as diesel range hydrocarbons based on discrete peaks on the <br /> btoc=below top of casing chromatograms(Appendix G) Upon further review,Sequoia Analytical <br /> MSL=Mean sea level indicated that the peaks are not caused by diesel,nor did any other type <br /> of petroleum hydrocarbons cause them <br /> 240073 05 <br />