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co <br /> y N '! '!f�• ..�. a rr <br /> DAVIS-AV <br /> FYFFE Al <br /> - - <br /> _-_=•�;�. � "t— ��—w�—.�-+ti --��r---+^-.e.�,-+..�—�..�.... - ---- � Building 21� <br /> Model Airplane _ �� <br /> O-P" Landing Strip Skeet Trap Courts <br /> :1 Subarea <br /> ____. MCCLO.Y-AV <br /> uilaii g 128 <br /> Lu <br /> P_INTER-AEl <br /> V u n <br /> GILLISSAV ----------- --------' QB <br /> IdingAg.. <br /> ° <br /> co W x <br /> Q. i <br /> 0 2 <br /> O � <br /> C �► <br /> r� r ���� •.�^ .5a� __ � 7* - - • �.a.5 rllaai^ . •4Ma n ' <br /> Notes: 0 250 <br /> Legend 1.Soil analytical data were collected between 1995 and 2015 and compiled by Geosyntec and <br /> Human Health Screen Data Set Boundary Anchor QEA(2018). Feet <br /> ® Soil Sample Location(Haley&Aldrich,2020) 2.Soil data presented were collected to maximum depths of 20 feet below ground surface. <br /> Lead Results Soil Sample Location Site 47 Pre-Decisional LUC Boundary 3.The screening level(SL)of 320 mg/kg is the non-cancer screening level for commercial or <br /> Residential SL=80(mg/kg) Approximate Location of Firing Point industrial soil from:DTSC HERO,2019.Human Health Risk Assessment(HHRA)Note. HERO N Lead Concentrations in Soil <br /> Industrial SL=320(mg/kg) Sediment Core Symbology Hatched interval HHRA Note Number:3. DTSC-modified Screening Levels(DTSC-SLs).Table 1 (Soil).Release <br /> 0 Historical and Current Site Features Size of overall p indicates non-analyzed date:A ril 2019. Site 47 <br /> Not Detected <br /> Trap Shotfall core reflects total���F segment(0-1.5 ft bgs) 4.The DTSC HERO(2019)non-cancer screening level for residential soil is 80 mg/kg. Port of Stockton, Rough&Ready Island <br /> 0 Below Residential SL ® Trap Shooting Area of Maximum Shotfall' core depth F Solid interval 5. DTSC=Department of Toxic Substances Control Stockton, California <br /> indicates analyzed 6. HERO=Human and Ecological Risk Office <br /> >Residential SL and<Industrial SL <br /> 0 Skeet Shotfall segment(1.5-3 ft bgs)7. mg/kg=milligram per kilogram Geosyntec° Figure <br /> Skeet Shooting Area of Maximum Shotfall' 8.ft bgs=feet below ground surface <br /> 9. For locations with field duplicates,the primary sample data was plotted. consultants <br /> ' Interstate Technology and Regulatory Council(ITRC).2003.Characterization and Remediation 7 <br /> of Soil at Closed Small Arms Firing Ranges.January. 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\Fig07_LeadlnSoil.mxd 2/8/2022 11:29:06 AM(Author:howie.chen) <br />