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Table 1 %nalytical Results-TPH,VOCs,SVOCs,Herbicides, 'CBs Manteca Multimodal Station Project Southeast of Moffat Boulevard and Main Street,Manteca,California s Boring Depth TPH-g TPH-d TPH-o Ethyl- Total SVOCs Herbicides PCBs Number in Feet C6-C10 C10-C22 C22-C36L Toluene benzene X Ienesm !k m(mgfkg) (mgfkg) (mg/kg) (Mg/kg) y (N91k9) (Nglkg) 9 g) ( gfkg) (Ng/kg) (pg/kg) Soil Borin s Adjacent Standard Oil Camp ny Supply Station and Industrial Adjacent Land Uses 5 NO<3 ND<3 ND<5 ND<5 ND<5 ND<5 ND<5 ND 10 131 15 20 - - - - - 25 - - - - - - - 5 NO<3 NO<3 ND<5 ND<5 NO<5 ND<5 ND<5 ND 10 - - - - Bre 15 - - - - - - - 20 25 5 NO<3 ND<3 ND<5 NO<5 ND<5 NO<5 ND<5 ND 10 - B3 15 - - - - - - - - - - - 20 - - - - - - 25 5 NO<3 NO<3 ND<5 ND<5 ND<5 ND<5 ND<5 ND 10 84 25 5 NO<3 NO<3 ND<5 NO<5 NO<5 ND<5 ND<5 ND 10 - - 85 15 - - - - - - - - - - - 20 - 25 - - - - - - - - - - Soil Borin s Former Railroad Spurs) RB1 0.5 ND<3 ND<3 6 - - - - - -2ND - R132 .5 <3 < <5 < < < N -_ (Composite of RBI-0.5',RB2- 0.5 ND<3 3.2 10 _ RB3 2 _ _ _ _ _ _ _ _ _ 0.5,RE13-0.5, 0.5 ND<3 NO<3 9.4 ND<5 ND<5 ND<5 ND<5 ND _ R84-0.5) - R64 2 RB5 0.5 NO<3 NO<3 ND<5 - - - - - - - 2 - - - - - - - - - ND - 0.5 ND<3 ND<3 8 ND<5 NO<5 ND<5 ND<5 ND - RB6 (Composite of 2 0.5 ND<3 ND<3 11 RB5-0.5,RB6- R67 2 0.5,RB7-0.5, 0.5 NO<3 4.4 13 NO<5 ND<5 ND<5 ND<5 ND _ R88-0.57 R1382 RB9 0.5 ND<3 ND<3 13 - - - - - - - 2 NO RB10 0.5 ND<3 NO<3 8 ND<5 ND<5 ND<5 NO<5 ND - (Composite of - 2 RB9-0.5, RB11 0.5 ND<3 ND<3 21 - - - - - - RB10-0.5, - 2 RB11-0.5, RB12 0.5 ND<3 7.1 21 ND<5 ND<5 ND<5 NO<5 ND - RB12-0.5) - 2 RB13 0.5 ND<3 35 19 - - - - - - - 2 ND RB14 0.5 ND<3 ND<3 10 ND<5 ND<5 NO<5 ND<5 NO - (Composite of _ 2 RB13-0.5, RB15 0.5 ND<3 NO<3 NO<5 - - - - - - RB14-0.5, - 2 RB 15-0.5, RB16 0.5 ND<3 NO<3 39 ND<5 NO<5 NO<5 NO<5 ND - RB16-0.57 - 2 Soil Boring (Stained Pavement R617 1 ND<3 6.2 82 ND<5 ND<5 NO<5 ND<5 NO ND ND ND<0.03-0.08 - SFBRWQCB ESL' 83 83 370 44 2,900 2,300 2,300 varies varies NE 0.22 CHHSL-residential NE NE NE NE NE NE NE NE varies 2,300 0.089 SL-residential NE NE NE 1,100 5,000,000 5,700 600,000 varies varies 2,000 0.22 CHHSL-C/I NE NE NE NE NE NE NE NE varies 9,000 0.30 SL-C/l NE NE NE 5,600 46,000,000 29,000 2,600,000 varies varies 7,200 0.74 TTLC NE NE NE NE NE NE NE NE varies 1,000 50 STLC I NE NE NE NE NE NE NE NE varies 100 1 5 Soil samples collected on December 6,2010. mg/kg=milligrams per kilogram pg/kg=micrograms per kilogram TPH=total petroleum hydrocarbons VOCs=volatile organic compounds SVOCs=semi-volatile organic compounds PCBs=polychlorinated biphenyls -=not analyzed ND=not detected at or above the laboratory reporting limits NE=not established SFBRWQCB ESLs-San Francisco Bay Regional Water Quality Control Board Environmental Screening Level. =SFBRWQCB ESLs assume that first encountered groundwater(18 to 22 feet below grade)is an existing or potential drinking water aquifer. CHHSL=Califomia Human Health Screening Levels(Cal/EPA-Use of California Human Health Screening Levels in Evaluation of Contaminated Properties, January 2005) SL=Regional Screening Levels for Chemical Contaminants at Superfund Sites,July 7,2008 TTLC=Total Threshold Limit Concentration STLC=Soluble Threshold Limit Concentration(in milligrams or micrograms per liter[mg/I orµgA]) Soil samples analyzed by Associated Laboratories,Inc. Analysis:TEPH by EPA Method 80158,VOCs by EPA Method 8260B,SVOCs by EPA Method 8270,Herbicides by EPA Method 8151A,and PCBs by EPA Method 8082.