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Analyte <br />Analyst: JMH Reviewed by: BS <br />123478-HxCDD <br />DL= 1.07 <br />DL= 1.04 <br />DL= 0.510 <br />2,3,7,8-TCDD <br />12378-PeCDD <br />NA <br />139 <br />114 <br />114 <br />LCL-UCL (a) <br />Quality Assurance Sample <br />Project ID: <br />104 <br />145 <br />119 <br />127 <br />136 <br />Soil <br />QC Batch #: <br />Date Received: <br />Sample Size: <br />EPA Method 1613B <br />ZB-5MS Analysis: <br />Method Blank <br />14-3002 <br />4/12/2019Matrix: <br />13C-OCDD <br />13C-2378-TCDF <br />13C-1234678-HpCDD <br />4/10/2019 <br />10.00 g <br />1975 Date Extracted: <br />13C-2378-TCDD <br />13C-12378-PeCDD <br />13C-1234789-HpCDF <br />37Cl4-2378-TCDD <br />13C-123678-HxCDF <br />13C-234678-HxCDF <br />13C-123789-HxCDF <br />13C-123478-HxCDD <br />13C-123678-HxCDD <br />140 <br />13C-123478-HxCDF <br />13C-1234678-HpCDF <br />24-185 <br />23-140 <br />17-157 <br />24-169120 <br />106 <br />21-178112 <br />Qualifiers <br />25-164 <br />25-181 <br />32-141 <br />28-130104 <br />% R <br />105 <br />89.8 <br />95.3 <br />Labeled Standards <br />26-138 <br />26-152 <br />26-123 <br />28-136 <br />29-147 <br />28-143 <br />Total Toxic Equivalency (TEQ min.) (b):0.0 <br />DL - Signifies Non-Detect (ND) at sample specific detection limit. <br />EMPC - Estimated Maximum Possible Concentration due to ion abundance <br /> ratio failure. <br />(a) - Lower control limit - Upper control limit <br />(b) - TEQ based on (2005) World Health Organization (WHO) Toxic <br /> Equivalent Factors. <br />pg/g <br />35-197 <br />CRS <br />13C-12378-PeCDF <br />13C-23478-PeCDF <br />123678-HxCDD <br />123789-HxCDD <br />1234678-HpCDD <br />OCDD <br />2,3,7,8-TCDF <br />12378-PeCDF <br />23478-PeCDF <br />123478-HxCDF <br />123678-HxCDF <br />234678-HxCDF <br />123789-HxCDF <br />1234678-HpCDF <br />Total HpCDF <br />Conc. (pg/g) <br />DL= 0.353 <br />DL= 0.594 <br />DL= 1.05 <br />1234789-HpCDF <br />OCDF <br />Totals <br />Total TCDD <br />DL= 0.286 <br />DL= 0.365 <br />Total HpCDD <br />Total TCDF <br />Total PeCDF <br />Total HxCDF <br />Total PeCDD <br />Total HxCDD <br />DL= 0.399 <br />DL= 0.498 <br />DL= 0.335 <br />DL= 0.379 <br />DL= 0.404 <br />DL= 0.551 <br />DL= 1.65 <br />Conc. (pg/g) <br />0.315 <br />0.409 <br />DL= 0.353 <br />DL= 0.594 <br />DL= 1.07 <br />DL= 0.510 <br />DL= 1.28 <br />DL= 0.399 <br />DL= 0.498 <br />DL= 0.432 <br />0.518 <br />0.533 <br />DL= 0.379 <br />DL= 0.551 <br />MDL <br />0.172 <br />0.327 <br />0.327 <br />0.655 <br />0.319 <br />0.425 <br />0.279 <br />0.378 <br />0.461 <br />EMPC <br />1.01 <br />0.0886 <br />0.412 <br />0.422 <br />Qual. <br />2.50 <br />2.50 <br />RL <br />0.500 <br />2.50 <br />2.50 <br />2.50 <br />2.50 <br />2.50 <br />2.50 <br />2.50 <br />2.50 <br />5.00 <br />5.00 <br />0.500 <br />2.50 <br />2.50 <br />2.50 <br />Page 4 of 13