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4 <br /> I <br /> 05/14/93 Environmental Science & Engineering, Inc Page 1 <br /> CONCORD 12241 <br /> Method Blank (MB) Sample Summary <br /> NAME UNITS STOR*METH BATCH SAMPLE DATE FOUND <br /> BENZENE UG/L 34030*PFH P13033 M8*NONE*l 05/04/93 <1 <br /> TOLUENE UG/L 34010*PFH MB*NONE*l 05/04/93 <1 <br /> ETHYLBENZENE UG/L 34371*PFH MB*NONE*l 05/04/93 <1 <br /># XYLENES,TOTAL UG/L 81551*1511 MB*NONE*1 05/04/93 <1 e <br /> GASOLINE, VOLATILE UG/L 97470*PFH MB*NONE*l 05/04/93 <100 <br /> CONCORD 12241 <br /> Sample Matrix Spike (SPM) Recovery Summary <br /> NAME UNITS STOR*METH BATCH SAMPLE DATE TARGET FOUND %RECV RECV CRIT UNSPIKED R P D R P D CRIT <br /> BENZENE UG/L 34030*PFH P13033 SPM1*12188*7 05/04/93 40 34 85 46-156 0 0 43 <br /> BENZENE UG/L SPM2*12188*7 40 40 100 46-156 0.0 16 0 43 <br /> TOLUENE UG/L 34010*PFH SPM1*12188*7 40 34 85 61-141 0 0 39 <br /> TOLUENE UG/L SPM2*12188*7 40 40 100 61-141 0 0 16 0 39 <br /> GASOLINE, VOLATILE UG/L 97470*PFH SPM1*11245*13 760 620 82 75^125 0 0 20 <br /> GASOLINE, VOLATILE UG/L SPM2*11245*13 760 720 95 75-125 0 0 15 0 20 <br /> CONCORD 12241 <br /> Surrogate (SUR) Spike Recovery summary <br /> k <br /> NAME UNITS STOR*METH BATCH SAMPLE DATE TARGET FOUND %RECV RECV CRIT <br />€ AAA TRIFLUOROTOLUENE UG/L 96100*SUR P13033 MB*NONE*l 05/04/93 40 40 100.0 30-138 <br /> AAA TRIFLUOROTOLUENE UG/L MB*NONE*2 05/05/93 40 40 100 0 30-138 <br /> AAA TRIFLUOROTOLUENE UG/L MB*NONE*3 05/10/93 40 40 100 0 30-138 <br /> AAA TRIFLUOROTOLUENE UG/L DA*12241*1 05/04/93 40 58 145 0 30-138* <br /> AAA TRIFLUOROTOLUENE UG/L DA*12241*2 05/05/93 40 30 75 0 30-138 <br /> I AAA TRIFLUOROTOLUENE UG/L UN*12188*7 05/04/93 40 34 85 0 30-138 <br /> AAA TRIFLUOROTOLUENE UG/L SPM1*12188*7 40 31 77 5 30-138 <br /> AAA TRIFLUOROTOLUENE UG/L SPM2*12188*7 40 34 85 0 30-138 <br /> * SPIKE RECOVERY ENHANCEMENT DUE TO MATRIX INTERFERENCE <br /> t <br /> 3 <br /> I <br /> 3 <br /> 1 <br /> s <br /> i <br /> i <br />