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TABLE 1 <br /> Soil Sampling Results <br /> San Joaquin County Public Works <br /> Benjamin Holt Drive Improvement Project <br /> From Gettysburg Place to Pacific Avenue <br /> Stockton,California <br /> TPH Pur eable TPH Extractables Volatile Organic <br /> Sample Idenfificabon Sample Depth Sample Date Sample Location TPHg TPHd TPHmo Compounds(VOCs)by Tetrachloroethene(PCEJ <br /> (Feet) (mg/kg) (mg/k (mg/kg) EPA 8260 (,g/kg) (pg/kg) <br /> TPN gasolines Middle Distillates Residual Fuels <br /> KB-1-36 3 Near Chevron NO(<0.20) NO <1.0NO <1.0 NO all NO <5.0 <br /> Station,Eastern <br /> KB-2-72 6 Alignment Section NO(<0.20) NO(Q.0) 27 NO(all) NO(<5.0) <br /> KB-3-36 3 Central Alignment NO(<0.20) ND <1.0 8.9 NO all NO <5.0 <br /> KB-4-72 6 Area NO(<0.20) NO(<1.0) 8.3 NO(all) NO(<5.0) <br /> KB-5-36 3 4/9/2013 NO(<0.20) NO <1.0 NO <1.0) NO all ND <5.0 <br /> KB-6-72 6 Known VOC NO(<0.20) NO <1.0 78 NO alp NO <5,0 <br /> Contamination ND <0.20 <br /> KB-7-36 3 ArealWestem ( ) ND <1.0 5.2 NO all NO <5.0 <br /> KB-8-48 4 Alignment Area NO(<0.20) ND <1.0 45 NO 5 49 <br /> KB-9-72 6 NO(<0.20) NO(<1.0) 4.9 ND(all) ND(<5.0) <br /> ESLs(Soil),CommerciaUlndustnal,Shallow Soil(1) 500(Ceiling Value) 110(Ceiling Value) 500(Ceiling Value) Varies 700(HHSL,GW) <br /> ESLs(Soil),Residential,Shallow Soil(2) 100(Ceiling Value) 100(Ceiling Value) 100(Ceiling Value) Varies 550(HHSL) <br /> ESLs(Soil),Direct Exposure Soil,CommerciaUlndustnal Worker(3) 4,000 1,100 100,000 Varies 2,600(HHSL) <br /> ESLs(Soil),Direct Exposure Soil,ConstructioN7rench Worker(4) 2,700 900 28,000 Varies 31,000(HHSL) <br /> Notes: <br /> NO(<1.0) =None detected at or above the detection limits shown for the individual analytes <br /> mg/kg =Milligrams per kilogram(parts per million) <br /> gg/kg =Micrograms per kilogram(parts per billion) . <br /> ESLs =Environmental Screening Levels,Interim Final-San Francisco Bay Regional Water Quality Control Board,November 2007 <br /> TPHg =Total petroleum hydrocarbons as referenced to gasoline <br /> TPHd =Total petroleum hydrocarbons as referenced to diesel <br /> TPHmo =Total petroleum hydrocarbons as referenced to motor oil <br /> HHSL =Basis is Human Health Screening Level <br /> GW =Basis is Groundwater Protection <br /> VOC =Volatile Organic Compounds <br /> (1) =Groundwater is current or potential source of drinking water(Table A-2 of the ESLs) <br /> (2) =Groundwater is current or potential source of drinking water(Table A-1 of the ESLs) <br /> (3) =Table K-2 of the ESLs <br /> (4) =Table K-3 of the ESLs <br /> (5) =None detected except as shown on table(PCE) <br /> 1333854/8T013R0698 Gape T-1 <br /> Copyright 2014.Kleinfelker West Ina Javay 7,2014 <br />