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9 <br /> �' SITI �'E 781 East Washington Blvd., Los Angeles, CA 90021 <br /> LAB SERVICE [213] 745-5312 FAX (213) 745-6372 <br /> Certificate of Analysis Page 18 of 21 <br /> File#:73101 <br /> Smith Emery Company GeoService [SF] Report Date: 04/18/19 <br /> 1940 Oakdale Avenue Submitted: 04/11/19 <br /> San Francisco,CA 94124 PLS Report No.: 1904116 <br /> Attn: Mr. Patrick Morrison Phone: (800)675-8886 FAX:(415)642-7055 <br /> Project: Seton Pacific RWC-MUUD-PHASE 1/71519-3 <br /> Quality Control Data <br /> S' <br /> pi el Source " °IOREC RPD <br /> Analyte; Result;" PQL Ut1rt5 Level Result °IoREC Lirrtits R�?D L miff uaiifler'. <br /> Batch Bp9162X'-EPA-3550C <br /> Surrogate:Decachlorobiphenyl 0.0118 mg/kg 0.01250 94.4 53-131 <br /> LCs Prepared&Analyzed:04/15/19 <br /> Aroclor-1260 0.272 0.0500 mg/kg 0.3125 87.1 60-129 <br /> Surrogate:2,4,5,6 Tetrachloro-m xylene 0.0108 mg/kg 0.01250 86.5 57-136 <br /> Surrogate:Decachlorobiphenyl 0.0111 mg/kg 0.01250 89.0 53-141 <br /> Matrix Spike Source:1904142-02 Prepared&Analyzed:04/15/19 <br /> Aroclor-1260 0.158 0.0500 mg/kg 0.2500 ND 63.3 53-120 <br /> Surrogate:2,4,5,6 Tetrachloro-m xylene 0.00811 mg/kg 0.01250 64.9 54-131 <br /> Surrogate:Decachlorobiphenyl 0.00838 mg/kg 0.01250 67.0 53-131 <br /> Matrix Spike Dup Source:1904142-02 Prepared&Analyzed:04/15/19 <br /> Aroclor-1260 0.188 0.0500 mg/kg 0.2500 No 75.4 53-120 17.4 30 <br /> Surrogate:2,4,5,6 Tetrachloro-m xylene 0.00930 mg/kg 0.01250 74.4 54-131 <br /> Surrogate:Decachlorobiphenyl 0.0100 mg/kg 0.01250 80.1 53-131 <br /> Batch.BD91810-EPA3060A. <br /> Blank Prepared&Analyzed:04/17/19 <br /> Chromium,Hexavalent ND 0.200 mg/kg <br /> LCS Prepared&Analyzed:04/17/19 <br /> Chromium,Hexavalent 0.991 0.200 mg/kg 1.000 99.1 70-130 <br /> Duplicate Source:1904117-01 Prepared&Analyzed:04/17/19 <br /> Chromium,Hexavalent 0.607 0.200 mg/kg 0.870 35.6 30 V-2 <br /> Matrix Spike Source:1904117-01 Prepared&Analyzed:04/17/19 <br /> Chromium,Hexavalent 1.88 0.200 mg/kg 1.000 0.870 101 70-130 <br /> Matrix Spike Dup Source:1904117-01 Prepared&Analyzed:04/17/19 <br /> Chromium,Hexavalent 1.84 0.200 mg/kg 1.000 0.870 97.0 70-130 3.95 30 <br /> Batch 8493:208:-EPA 30508 <br /> Blank Prepared&Analyzed:04/12/19 <br /> Antimony ND 2.00 mg/kg <br /> Arsenic ND 2.00 mg/kg <br /> Barium 0.409 1.00 mg/kg <br /> Beryllium ND 1.00 mg/kg <br /> Cadmium ND 1.00 mg/kg <br /> Chromium ND 1.00 mg/kg <br /> Cobalt ND 1.00 mg/kg <br /> Copper ND 1.00 mg/kg <br /> Lead ND 1.00 mg/kg <br /> Molybdenum ND 1.00 mg/kg <br /> i <br />