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Vill <br /> 1302 EEI 1311 <br /> 3G . ... <br /> B20 ON MWIFF <br /> B14 _ <br /> B05 E <br /> F SS-817B-04A* B01 B03 <br /> � I - <br /> EE 817-D3 --— _ <br /> SS-817B-06A* i — — - — — � — — " — — <br /> SS-817B-05A* tF� <br /> ,.J1l+ •� tl'`F,� �/�II��E SS 817B-01A* I —W7-1012y— ANN <br /> EF <br /> 917=D5,� , SS-817B-03A* <br /> 1 <br /> { 8177--D-D4 , % „ , B15 - - <br /> . . ti•_ Y'til '� r t - ' • SS-8176-07A* 817-D6 <br /> --mac.... �--�`'` �' . _� ti:(T`.!: ; •t" i ! f <br /> y !. B13—� `B18 w i e <br /> El <br /> SS-817B-02A* B16 �• <br /> • _ _♦ fP. T 1306--0 <br /> EEI <br /> A. { - <br /> EEI <br /> '.rt' • (}1319 r <br /> Q-1308 IT] } <br /> EEI <br /> f. <br /> T <br /> Legend Notes: <br /> O 0-5 ft bgs Soil Sample Location Former U p p LIST Symbol Highlighted for Analyte Exceedance for all Depths Sampled ft bgs=feet below ground surface Historical Shallow Soil Samples <br /> mg/kg=milligrams per kilogram Collected 1998-2022 <br /> TPH=total petroleum hydrocarbons <br /> O 5-10 ft bgs Soil Sample Location Q Former Building Structures Benzene— Eth (benzene N UST 817E <br /> y UST=underground storage tank <br /> Former Excavation Area Napthalene— —Total TPH =sample collected after suspected excavation in 2010. Port of Stockton, Rough&Ready Island <br /> Note 1:Screening Criteria based on Table 1 and Appendix 3 of the State Water Stockton,California <br /> Suspected Excavation Based on Resource Control Board Low-Threat Underground Storage Tank Case Closure <br /> Circa 2010 Images Earth Goo le Screening Levels'(mg/kg) 0-5 ft bgs 5-10 ft bgs Policy for commercial/industrial receptors. <br /> g g Benzene: 8.2 12 B##samples were collected in 1998-1999. Geosptec® Figure <br /> Q Building 917 Outline 45 817-D samples were collected in 2008. <br /> Ethylbenzene: 89 SS-817B samples were collected in 2019 or 2022. consultants <br /> —•— Fence Napthalene: 45 Historical boring location source:Anchor QEA,May 2018. 3 <br /> o Drainage Channel Total TPH: 100 100 Aerial imagery source:Nearmap,June 2024. 0 40 Feet WR2501 E November 2024 <br /> \\oakland-01\data\GIS\Port_Of_Stockton\Rough-and-Ready-Island-PM\Project\USTs\2024-07_UST817B\Figures.aprx\Fig03_HistoricalSoilSamples 9/26/2024 11:47AM(kwalton) <br />