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APPENDIX D <br /> QUALITY ASSURANCE LABORATORY <br /> QUALITY CONTROL DATA REPORT <br /> 1 JUNE 16, 1994 <br /> NINYO & MOORE <br /> LOG #9219-9406 THROUGH 9227-9405 <br /> DATE EXTRACTED: <br /> JUNE 2 , 1994- TPH-DIESEL <br /> JUNE 3 , 1994- BENZENE, TOLUENE, ETHYLBENZENE, XYLENE <br /> 1 DATE ANALYZED: <br /> JUNE 3 , 1974-- TPH--GAS <br /> JUNE 8, 1994- BENZENE, TOLUENE, ETHYLBENZENE, XYLENE <br /> ANALYSES PREP/ANALYSIS LCS SPIKE DUPLICATE <br /> 1 METHOD RECOVERY %RECOVERY RPD <br /> TPH-GAS 3550/DHS 95% <br /> TPH-DIESEL 3550/DHS 115% 69% 1% <br /> BENZENE 5030/8020 99% 111% 2% <br /> TOLUENE 5030/8020 76% 74% 4% <br /> ETHYLBENZENE 5030/8020 78% 86% 4% <br /> XYLENE 5030/8020 101% 110% 2% <br /> i <br /> 1 <br /> 4TIMOTH J WOLLIN <br /> DIRECTOR OF QA/QC <br /> QUALITY CONTROL TERMINOLOGY <br /> PROCEDURES TO VERILABOTORY IFFY METHOD PERFORMANCE ACCEPTABLE RANGE S BASED ON HISTORICAL LABORATORY CONTROL DATA AND PA REQUIREMENNTROL STANDARD REPORTED AS% RECOVERY OF AN INDEPENDENT STANDARD CARRIED THROUGH ALL SAMPLE TS <br /> ANY OUT-OF-CONTROL QC DATA IS CLEARLY INDICATED <br /> SOME - ENVIRONMENTAL SAMPLE IS MATRIX SPIKED WRH METHOD COMPOUNDS AND% RECOVERY OF CONCENTRATION SPIKED INTO SAMPLE IS <br /> CALCULATED REPORTED AS%RECOVERY ACCEPTABLE RANGE FOR-NORMAL MATRIX SAMPLE"IS BASED ON HISTORICAL LABORATORY CONTROL DATA <br /> ' ANY OUT-0F-CONTROL OC DATA IS CLEARLY INDICATED <br /> U COMPOUNDS REPRESENTATIVEOFAGROUPOFGOMPOUNDS SURROGATES ARE SPIKED INTO ENVIRONMENTALSAMPLESAND%REGOYERY <br /> � <br /> OF CONCENTRATION SPIKED IS CALCULATED AND REPORTED ACCEPTABLE RANGE VARIES DEPENDING ON SAMPLE MATRIX AND ANALYSIS METHOD ANY <br /> OUT-0F-CONTROL DATA 15 CLEARLY INDICATED <br />