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D RAFT <br /> Sample ID 817-D3 SS-8176-OSA-4 <br /> Screening <br /> Sample ID 817-DS SS-817B-01A-4 Depth(ft bgs) 4 4 Level <br /> Depth(ft bgs) 4 4 Screening Date 4/8/2008 1/28/2019 <br /> Level <br /> Date 4/8/2008 1/28/2019 TPHg 470 4.6 2,000 <br /> TPHg 3,200 7.5 2,000 Benzene <0.084 0.00073 J 1.4 <br /> TPHd 0.581 1,200 DAVISAVE Ethylbenzene <0.084 0.000471 26 <br /> Benzene 22 0.0071 J 1.4 Toluene 0.97 0.00055 J 5,300 <br /> Ethylbenzene 46 26 o-Xylene 0.000321 <br /> Toluene 10 5,300 1 m,p-Xylene 0.000691 <br /> Total Xylenes' 160 2,500 \ Total Xylenes' 0.88 2,500 <br /> Naphthalene <0.0013 17 MTBE <0.84 210 <br /> MTBE <25 210 <br /> 8.1.7.-D•,3 <br /> SS-81713-01A SS 81.7_.6-06A SS-8176 05A <br /> Tr ` IMI.- "' _ 817-D5 SS-81713-04A Sample ID 817-D2 SS-817B-03A-4 <br /> Sample ID 817-D7 SS-8176-02A-4 r 817-D4 0 817-D2 Depth(ft bgs) 4 4 Screening <br /> Depth(ft bgs) 4 4 Screening {�f- Level <br /> www Level SS-8176-03A Date 4/8/2008 1/28/2019 <br /> Date 4/8/2008 1/28/2019 SS=817-6 04A <br /> '..�._*+►�'' SS-8176-02A� -�-� TPHg 220 4.6 2,000 <br /> TPHg 220 58 2,000 <br /> 817-D7 Benzene 5.6 0.00171 1.4 <br /> TPHd 1.4 1,200 Ethylbenzene 5.9 0.0012J 26 <br /> Benzene 17 0.42 1.4 Sample ID 817-134 SS-817B-04A-4 Toluene 0.32 0.000981 5,300 <br /> Ethyl benzene 10 26 Depth(ft bgs) 4 4 Screening <br /> Level o Xylene 0.000641 <br /> Toluene 2.1 5,300 Date 4/8/2008 1/28/2019 m,p-Xylene 0.00171 <br /> Total Xylenes' 1 7.5 2,500 TPHg 770 1,100 2,000 Total Xylenes' 9.9 2,500 <br /> _ Naphthalene 0.14 17 Benzene 8.7 0.76 1.4 MTBE <0.31 210 <br /> MTBE <2.5 210 Ethylbenzene 3.6 6.4 26 <br /> r t `• Toluene 1.7 <0.036 5,300 <br /> r <br /> t'. o-Xylene 0.13 J <br /> « '+� m,p-Xylene 1.2 <br /> Ok Total Xylenes' 3.3 1.3 2,500 <br /> MTBE <0.39 210 <br /> Legend (votes: UST 8178 <br /> 2019 Soil Sample Location --=Compoundnotanalyzed Total xylenes as reported by analytical laboratory. Soil Sampling Locations and Analytical Data <br /> <=Compound is below method detection limit -All results are posted in milligrams per kilogram(mg/kg). 2008 and 2019) <br /> 2008 Soil Sample Location ft bgs=feet below ground surface -Highlighted results exceed the San Francisco Regional Water N <br /> TPHd=Total Petroleum Hydrocarbons as Diesel Quality Control Board Enviornmental Screening Levels for Port Of StocktonRough&Read Island <br /> Proposed Soil and Grab TPHg=Total Petroleum Hydrocarbons as Gasoline corn ,mercial/industrial shallow soil exposure(Table S-1) g y <br /> Groundwater Sampling Location UST=Underground Storage Tank (2019,rev.2).Where both cancer risk and non-cancer hazard Stockton,California <br /> J=Result is less than the reporting limit but greater exposure levels were available,the more stringent level was <br /> Former BuildingStructures <br /> than or equal to the method detection limit and selected. <br /> 0 Former UST the concentration is an approximate value. -All data posted has been adopted from the AnchorQEA EQuIS Geo syntec° Figure <br /> ®Former Excavation Areas database,acquired in May 2018 <br /> consultants <br /> =Roads 2 <br /> Historical boring location source:Anchor QEA,May 2018. 0 50 <br /> Aerial imagery source:Google Earth Pro,August 2019. Feet WR2501 B March 2022 <br /> \\oakland-01\data\GIS\Port_Of_Stockton\Rough-and-Ready-Island-PM\Project\USTs\2022-02_Building817B\Fig02_HistoricSoilData.mxd 3/1/2022 12:08:50 PM <br />