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DAVIS.A4 CO MOON" <br /> • ■ FYFFE•AV Y If A . • '0 ?: a • 1r. + <br /> M����������1�� ������ <br /> - - - ....t.�.,�a��r• r� - u�+�+ — Building 219, <br /> -- - -— 17Airplane <br /> Courts - t <br /> Landing Strip <br /> P� a, r c' • ab ; a Building 128 <br /> MCCLOYAVL-- <br /> For western-datase„ <br /> see figure 7b <br /> -,PINTER-AV 44 <br /> l - m trl <br /> I� <br /> El <br /> El <br /> �' � J • � tA <br /> GILLISS AV <br /> �. B Iding9, F: <br /> co <br /> • I <br /> h n - - 0j� tom: <br /> 'f# T= r yf <br /> Ai a <br /> Legend Notes: <br /> 1.Soil analytical data were collected between 1995 and 2020 and compiled by Geosyntec,Haley and <br /> Arsenic Results ® Soil Sample Location(Haley& Sediment Core Symbology Aldrich,and Anchor QEA(2018). 0 250 <br /> BTV=30.7(mg/kg) Aldrich,2020) Hatched interval indicates non- 2.Soil data presented were collected to maximum depths of 20 feet below ground surface. Feet <br /> Not Detected a Soil Sample Location(Geosyntec, Size of overall core ,analyzed segment(0-1.5 ft bgs) 3.The background threshold value(BTV)of 30.7 mg/kg was derived in:Department of Toxic <br /> 2020) reflects total core depth ,Solid interval indicates Substances Control, Ecological Risk Assessment Section(DTSC ERAS),2015.Memorandum <br /> <1x BTV analyzed segment(1.5-3 ft bgs) from Edward A.Fendick to Lance McMahan, Brownfields and Environmental Restoration N <br /> Soil Sample Location(1995-2015) Program,Department of Toxic Substances Control.Subject: Final Technical Memorandum, Arsenic Concentrations in Soil <br /> 1 -3x BTV � 9 p 1 <br /> 3-5x BTV XRF Sample Location(2007) Background Metal Concentrations and Ambient Pesticide Concentrations in Soil,NCS Stockton, Site 47 <br /> 5-7x BTV Approximate Location of Firing Point Y9 <br /> October 1997. Prepared by PRC Environmental Management, Inc.,Rancho Cordova,California. Port of Stockton, Rough&Read Island <br /> � <br /> March 16. Stockton,California <br /> — >7x BTV Data Set Boundary 4. DTSC=Department of Toxic Substances Control <br /> Roads 5. mg/kg=milligram per kilogram Geosyntec® Figure <br /> 6.ft bgs=feet below ground surface <br /> Historical and Current Site Features 7. For locations with field duplicates,the primary sample data was plotted.For samples with multiple Consultants <br /> Site 47 Pre-Decisional LUC laboratory analyses,the average analytical value was plotted. 6a <br /> Boundary WR2501B February2022 <br /> \\oakland-01\data\GIS\Port_Of_Stockton\Rough-and-Rea dy-Isla nd-PM\Project\Site 47\2022-02_DraftRAP\Fig06a_ArsenidnSoi1_2020 Data­mxd 2/7/2022 4:15:35 PM(Author:howie.chen) <br />