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UST/OWS 817B y <br /> SITE 51 <br /> # W III <br /> = m UST/OWS 517 <br /> J <br /> � SITE 5D W <br /> = F_Y.F_F_E.AV <br /> S47-GSN-11 �S47=G9N`Y10 � � � S47-GSN-0 � - <br /> 1 I f + <br /> L.OYA'V <br /> SITE�1�9 Z Y <br /> W <br /> U_ <br /> r <br /> ti � P_IN.T.ER.AV � K31 _ SITE 47 <br /> ar <br /> r �S47-GSN-08 � .. ter- . i�..�. ,� -- � <br /> i <br /> i <br /> ' i I S47-GSN-07 GILLISS_AV <br /> Ll Ec' K" <br /> rIT i <br /> i-----!----!———`——a E01 <br /> _- <br /> L]r o i- i1j_i.r_I�i ___lam -/"; `;I m <br /> rA <br /> SITE 47--i '-N.' _— �� 4 <br /> Legend Notes: O <br /> 1.Soil analytical data were collected between 1995 and 2020 and compiled by Geosyntec 1. <br /> Arsenic Results ® Soil Sample Location(9 September 2020) and Anchor QEA(2018). <br /> BTV=30.7(mg/kg) XRF Sample Location(2007) 2.Soil data presented were collected to maximum depths of 20 feet below ground surface. 4d <br /> Not Detected Data Set Boundary 3.The background threshold value(BTV)of 30.7 mg/kg was derived in:Department of Toxic <br /> Substances Control, Ecological Risk Assessment Section(DTSC ERAS),2015.Memorandum Arsenic Concentrations in Soil <br /> <1x BTV Site 47 Pre-Decisional LUC Boundary from Edward A.Fendick to Lance McMahan, Brownfields and Environmental Restoration (Northwestern Extent) <br /> - 1 -3x BTV Roads Program,Department of Toxic Substances Control.Subject: Final Technical Memorandum, Site 47 <br /> Background Metal Concentrations and Ambient Pesticide Concentrations in Soil,NCS Stockton, <br /> 3-5x BTV Port of Stockton, Rough&Ready Island <br /> October 1997. Prepared by PRC Environmental Management, Inc.,Rancho Cordova,California. Stockton,California <br /> - 5-7x BTV March 16. <br /> - >7x BTV 4. DTSC=Department of Toxic Substances Control <br /> 5. mg/kg=milligram per kilogram Geosyntec® Figure <br /> Sediment Core Symbology <br /> Hatched interval indicates non- 6.ft bgs=feet below ground surface <br /> Size of overall core_,�nFanalyzed segment(0-1.5 ft bgs) 7. For locations with field duplicates,the primary sample data was plotted.For samples with multiple consultants 6b <br /> reflects total core depth F Solid interval indicates laboratory analyses,the average analytical value was plotted. 0 200 <br /> analyzed segment(1.5-3 ft bgs) Feet WR2501 B February 2022 <br /> \\oakland-01\data\GIS\Port_Of_Stockton\Rough-and-Rea dy-Isla nd-PM\Project\Site 47\2022-02_DraftRAP\Fig06b_NorthwestArseniclnSoil_2020Data.mxd 2/7/2022 4:17:13 PM(Author:howie.chen) <br />