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West Weber SSI Report 1404.1541 West Weber Avenue Stockton,California Date:May 22,2013 Table 5:Parcels 16 and 17 Soil Sample Detections(continued on to next page) BGWtst B-GW1St B-GW152 B-GWiS2 &GWIS3 "W7S3 B-GW2 BGw2S1 &Gw2S2 B-Gw2S2 M.W. California Human Industrial EPA Industrial Soil B-GW151(9-10) BGW1S1116-17) BGW1S2(9-i0) BGW1S2(13.14) BGW1S3(10.11) BGW7S3(5-6) BGW2(&e) BGW2S7(4d) B-GW2S2(16-17) 64W2S2(16-17) Parameter CAS N. Units Backgroun g d Health Screening Screening Regional Screening Level InBestlon Outdoor- 412/12013 412312013 4123/2013 412312013 412312013 4123/2013 411812013 4119/2013 4119/2013 4119/2013 Values' Level' Leve0 Worker' Field Duplicate Hesachlombenzene 118-74-1 myKg NS NS 1.10E+00 1.00E+00 <0.33 <0.33 <0.33 <0.33 <1.7 -0.33 <0.33 -0.33 -1.7 -1.7 Hexachlorobutadiene 87-68-3 myKg NS NS 2.20E+01 2.50E+Oi <0.33 -0.33 <0.33 -0.33 -1.7 -0.33 <0.33 <0.33 <1.7 <1.7 Hexachlorocyclopentaecne 77-47-4 myKg NS NS 3.70E+03 4.10E+0J <0.33 <0.33 .0.33 <0.33 <1.7 <0.33 <0.33 <0.33 <1.7 <1.7 Hexechlor th- 67-72-1 myKg NS NS 4.30E+01 1.40E+02 <0.33 <0.33 <0.33 <0.33 c1.7 <0.33 <0.33 <0.33 <1.7 <1.7 hdeno[1,2,3otllpyrene 193396 myKg NS NS 2.10E+00 2.00E+00 -0.33 <0.33 <0.33 -0.33 <1.7 <0.33 -0.33 <0.33 <1.7 -1.7 K.phoran 7859.1 myKg NS NS 1.80E+03 2.00E+03 <0.33 <0.33 <0.33 <0.33 <1.7 <0.33 <0.33 -0.33 <1.7 <1.7 Naphthalene 91-203 myKg NS NS 1.80E+01 1.20E+04 <0.33 <0.33 <0.33 -0.33 <1.7 <0.33 <0.33 <0.33 <1.7 <1.7 Nitrobenzene 98-95-3 myKg NS NS 2.40E+01 3.40E+02 <0.33 c 0.33 <0.33 <0.33 <1.7 <0.33 <0.33 <033 <1.7 <1.7 N-Nitrosodimethylamine 62-75.9 myKg NS NS 3.40E-02 NS <0.33 <0.33 <0.33 <0.33 <1.7 <0.33 <0.33 <0.33 <1.7 <1.7 N-Niuoso&+Wopylamfne 62i4W7 myKg NS NS 2.50E-01 3.00E-01 <0.33 <0.33 <0.33 -0.33 -1.7 -0.33 -0.33 <0.33 <1.7 <1.7 N-Nitroso6phenylamine 86306 myKg NS NS 3.50E+02 3.90E+02 <0.33 <0.33 <0.33 <0.33 <1.7 c0.33 <0.33 <0.33 <1.7 <1.7 Pentachlorophenol 87.866 myKg NS 1.30E+01 2.70E+00 1.00E+01 <0.83 -0.83 <0.83 -0.83 <4.2 <0.83 <0.83 <0.83 <4.2 -4.2 Phenanthrene 8541.8 myKg NS NS NS NS <0.33 c 0.33 <0.33 <0.33 <1.7 <0.33 .0.33 <0.33 -1.7 <1.7 Phenol 108.95.2 myxg NS NS 1.80E+OS 2.10E+05 <0.33 <0.33 <0.33 -0.33 <1.7 <0.33 -0.33 -0.33 <1.7 <1.7 Eq Pyrene 128-00-0 myKg NS NS 1.7DE+04 1.80E+04 <0.33 <0.33 <0.33 <0.33 <1.7 <0.33 <0.33 <0.33 <1.7 <1.7 Glibmla 42�. !IDB-] IID&7S ws&1 Wss.1s FPSB,1 NPSB-2a -8. -0,,s NP88. WS94a Ws" Wsess ws- -.0as Ws" Mebls Human Intluaaial9NPB-]113) NP&]5(13) NPS&111.6.261 NPs&1510.5.11 NPSB-211.17 NPSB-YSn31 IIDSBd 1/Q) NP]Bis 11.131 lIDSB4(0.8-11 NP8B41100.8) r85Bd113) IIDSBAS'1.1,1.11 IIDBBd'til Pm5885(1.2) 1psBi10.61) n...r CAS NO. Wtib Backflrauntl t'ea'm fl 1&2011 4119/3013 411&2013 411&2013 .1&201-3 .1&201] 411&301] .1-1 .1,,2013 4116/4113 4117/2013 .1712013 .1]12013 .1712013 .1812013 w solos743982-1 mgllK9 1.30-6.01 120-6.02 8.00E+02 414 10 415 IJA 18J. NA 13J. N4 NA NA 414 14A 414 NA ]80 a b sW 9020 Amenk 74408-2 myKfl 9.10E.W 240E-01 1.WE+w 9.2!bctl 22 abcd 2.6 J.pctl 4.7 J-bctl Q3 J•bctl Q]J•bctl MJ•e bc4 t8 J•l bctl 10J-a bctl 31 J•bctl ie betl ].6 bc4 141bc4 2o.bc4 9.8 b4 Notes- mg/Kg-milligrams per kilogram <-analyte concentration is less than the referenced laboratory reporting limit UJ-analyte not detected;reporting detection limit may be inaccurate or imprecise J-estimated concentration J+-estimated concentration;suspected high bias J--estimated concentration;suspected low bias NS-no standard available NA-not analyzed a-analyte concentration exceeds the Metals Background Value b-analyte concentration exceeds the California Human Health Screening Level c-analyte concentration exceeds the Region Screening Level d-analyte concentration exceeds the EPA Industrial Soil Screening Level -Ingestion for Outdoor Worker bold-analyte detected bold and shaded-analyte concentration is greater than the referenced action level. San Francisco Bay Regional Water Quality Control Board Table C-2 Deep Soil Screening Levels(>3m bgs)Commercial/Industrial Land Use(Groundwater is a current or potential drinking water source) 1 Table 8.1.3,Preliminary Endangerment Assessment,GEO-PHASE Environmental,November 2008 2 Table 1 Soil Screening Number(mg/Kg soil)for nonvolatile chemicals based on total exposure to contaminated soil;inhalation,ingestion and dermal adsorption-commercial/industrial scenario;9/23/2010 (http://oehha.ca.gov/risk/chhsitable.html) 3 Industrial Soil Screening Level(http://www.epa.gov/reg3hwmd/risk/human/rb-concentration_table/Genedc_Tables/pdf/master sl_table_run_NOV2012.pdf) 4 Exhibit A-2 Generic Soil Screening Levels for Commercial/Industrial Scenario: Outdoor Worker Receptor(http://www.epa.gov/superfund/health/conmedia/soil/pdfs/ssg_appa-c.pdf) GEI Consultants,Inc. 24