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0 <br />McCampbell Analytical Inc <br />Telephone 925-799-1620 Fax 925-798-1622 <br />//www mccampbell com E-mail mam(ajmccampbell cpm <br />QC SUMMARY REPORT FOR SW8021B/8015Cm <br />BatchlD 2498 Matrix W <br />WorkOrder 0206271 <br />EPA Method SW8021618015Cm Extraction SW5030B Fact Date 6118102 Spiked Sample ID 0206274-002A <br />Compound <br />Sample <br />Spiked <br />MS* <br />MSD* <br />IMS -MSD- <br />LCS <br />LCSD <br />LCS-LCSD <br />Acceptance Criteria (%) <br />pg/L <br />pg/L <br />% Rec <br />% Rec <br />% RPD <br />% Rec <br />% Rec <br />I % RPD <br />Low <br />High <br />TPH(gas) <br />ND <br />60 <br />118 <br />116 <br />I34 <br />113 <br />111 <br />10 <br />80 <br />120 <br />MTBE <br />5 492 <br />10 <br />953 <br />93 <br />1 57 <br />SOB <br />812 <br />040 <br />80 <br />120 <br />Benzene <br />ND <br />10 <br />956 <br />968 <br />128 <br />103 <br />963 <br />63 <br />80 <br />120 <br />Toluene <br />ND <br />10 <br />102 <br />104101 <br />98 <br />32 <br />80 <br />120 <br />Ethylbenzene <br />ND <br />10 <br />997 <br />102 <br />991 <br />959 <br />33 <br />80 <br />120 <br />Xylenes <br />ND <br />30 <br />100 <br />103 <br />3281997 <br />98 7 <br />1 0 <br />80 <br />120 <br />%SS <br />105 <br />10 <br />105 <br />105989 <br />100 <br />12 <br />80 <br />120 <br />All target compounds in the Method Blank of this extraction batch were ND less than the method PL with the Following exceptions <br />NONE <br />MS = Matrix Spike MSD = Matrix Spike Duplicate LCS = Laboratory Control Sample LCSD = Laboratory Control Sample Duplicate, RPD = Relative Percent <br />Deviation <br />NIA = not enough sample to perform matrix spike, or anatyte concentraffon in sample exceeds spike amount <br />% Recovery = 100 ' (MS -Sample) I (Amount Spiked), RPD = 100 ` (MS — MSD) 1(NIS + MSA) * 2 <br />' MS and 1 or MSD spike reeovenes may not be near 100% or their RPDs near 0% it a) the sample is inhomogeneous AND contains significant concentrations of <br />analyze relative to the amount spiked or b) if that specific sample matrix interferes with spike recovery <br />