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Analyte <br />Analyst: JMH Reviewed by: BS <br />116 <br />NA <br />4/1/2019 <br />1.000 L <br />Date Received: <br />4/2/2019Matrix: <br />Sample Size: <br />Limits (a)Labeled Standards <br />EPA Method 1613B <br />Date Extracted: <br />Aqueous ZB-5MS Analysis: <br />QC Batch #:1964 <br />123478-HxCDD <br />123678-HxCDD <br />63.8 <br />59.9 <br />13C-2378-TCDD <br />13C-12378-PeCDD <br />% Rec. <br />123789-HxCDD <br />1234678-HpCDD <br />2,3,7,8-TCDD <br />12378-PeCDD <br />Project ID:14-3002 <br />Conc. (ng/mL) <br />OCDD <br />2,3,7,8-TCDF <br />12378-PeCDF <br />23478-PeCDF <br />123478-HxCDF <br />123678-HxCDF <br />41.7 <br />234678-HxCDF <br />123789-HxCDF <br />1234678-HpCDF <br />1234789-HpCDF <br />OCDF 105 <br />36.5 <br />42.8 <br />41.7 <br />41.3 <br />13C-123478-HxCDD <br />13C-123678-HxCDD <br />13C-OCDD <br />13C-2378-TCDF <br />13C-1234678-HpCDF <br />13C-1234678-HpCDD <br />13C-123678-HxCDF <br />13C-234678-HxCDF <br />13C-123789-HxCDF <br />13-198 <br />22-152 <br />13C-12378-PeCDF <br />13C-23478-PeCDF <br />21-192 <br />117 <br />Limits (a) <br />20-175 <br />21-227 <br />21-193 <br />25-163 <br />26-166114 <br />119 <br />19-202 <br />13-328118 <br />142 <br />112 <br />125 <br />106 <br />106 <br />93.937Cl4-2378-TCDD <br />21-159 <br />22-176 <br />17-205 <br />21-158 <br />13C-1234789-HpCDF <br />78-144 <br />7.5-15.8 <br />40-67 <br />34-80 <br />36-67 <br />42-65 <br />35-78 <br />(a) Limits based on method acceptance criteria. <br />Quality Assurance Sample <br />Ongoing Precision and Recovery <br />31-191 <br />CRS <br />6.7-15.8 <br />20-186 <br />35-71 <br />35-82 <br />39-69 <br />63-170 <br />101 <br />124 <br />43.2 <br />47.7 <br />38-67 <br />13C-123478-HxCDF 121 <br />77.5 <br />104 <br />32-81 <br />35-70 <br />39-65 <br />41-61 <br />55.1 <br />10.1 <br />61.4 <br />52.0 <br />108 <br />8.36 <br />41.8 <br />Page 5 of 29