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1102nd Avenue South Pacheco, 94553-5560 McCampbell Analytical, Inc. /.� Telephone 925-798-15-16 20 Fax 92525 798-1622 LLLt��111 Website www mccampbell corn E marl ma n@mccarMbell com ' QC SUMMARY REPORT FOR SW8260B ' W O Sample Matnx Water QC Matrix Water WorkOrder 0507366 EPA Method SW8260B Extraction SW5030B BatchTD 17262 Spiked Sample ID 05D7370-001A ' Analyte Sample Spiked MS MSD MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria (%) Ng/L pg/L %Rec % Rec %RPD % Rec %Rec %RPD MS I MSD LCS/LCSD tert-Amyl methyl ether(TAME) ND 10 994 961 336 102 140 244 70- 130 70- 130 t-Butyl alcohol(TBA) ND 54 86 843 206 935 86 838 70- 130 70- 130 1,2-Dibromoethane(EDB) ND 10 993 97 7 160 103 99 408 70- 130 70- 130 1,2-Dtchloroethane(1,2-DCA) ND 10 113 108 405 114 110 349 70- 130 70- 130 Dusopropyl ether(DIPE) ND 10 113 110 332 116 111 488 70- 130 70- 130 ' Ethanol ND 500 929 89 8 337 10t 101 0 70- 130 70- 130 Ethyl tett-butyl ether(ETBE) ND 10 104 100 395 110 104 581 70- 130 70- 130 Methanol ND 2500 101 96 1 465 908 857 579 70- 130 70- 130 ' Methyl-t-butyl ether(MTBE) ND 10 945 984 671 105 975 698 70- 130 70- 130 %SSI 0 10 99 98 144 102 98 399 70- 130 70 130 ' All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions NONE iii BATCH 17262 SUMMARY Sample ID Date Sampled Date Extracted Date Analyzed Sample ID Date Sampled Date Extracted Date Analyzed ' 0507366-004A 7/21/05 7/25105 7125105 4 23 PM 0507366-005A 7/21/05 7125/05 7/25105 127 PM 0507366-006A 7121105 7/25105 7/25/05 2 10 PM tMS=Matrix Spoke MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent Deviation %Recovery=100`(MS-Sample)/(Amount Spoked) RPD=100"(MS- MSD)I((MS+MSD)/2) ' MS I MSD spike recovenes and/or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons a)the sample is inhomogenous AND contains significant concentrations of analyte relative to the amount spiked,or b)the spiked sample's matrix interferes with the spoke recovery NIA=not enough sample to perform matrix spoke and matrix spike duplicate NR=analyte concentration in sample exceeds spike amount for sod matrix or exceeds 2x spoke amount for water matrix or sample diluted due to high matrix or analyte content A111111116aboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels qW1 ' DHS Certification No 1644 QA/QC Officer