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1 <br /> QUALITY ASSURANCE LABORATORY <br /> QUALITY CONTROL REPORT <br /> JUNE 16, 191L <br /> NINYO & MOORE 4 <br /> LOG #9533-9406 THRO GH - 06 <br /> DATE EXTRACTED: <br /> JUNE 6, 1994- TPH-DIESEL <br /> DATE ANALYZED: <br /> JUNE 9, 1994- TPH-GAS (LOG# 9534-9406) 1 <br /> JUNE 14 , 1994- TPH-GAS (LOG# 9533-9406, 9535-9406) 2 , <br /> ' BENZENE, TOLUENE, ETHYLBENZENE, XYLENE <br /> ANALYSES PREP/ANALYSIS LCS SPIKE DUPLICATE <br />' METHOD $ RECOVERY %RECOVERY RPD <br /> TPH-GAS' 5030/DHS 102$ <br /> TPH-GAS2 5030/DHS 87% <br /> TPH--DIESEL SLC 816/DHS 117% 73% 3$ <br /> BENZENE 5030/8020 95$ 97$ 2$ <br /> TOLUENE 5030/8020 91% 94% 3$ <br /> ETHYLBENZENE 5030/8020 76$ 76% 0% <br /> XYLENE 5030/8020 98$ 95$ 3$ <br /> I <br /> i" <br /> G <br /> TIMOTHY OLLINqC5DIRECTOR OF QA/Qoa <br /> U <br /> I <br /> QUALITY CONTROL TERMINOLOGY <br /> LQA LABORATORY CONTROL STANDARD REPORTED AS% RECOVERY OF AN INDEPENDENT STANDARD CARRIED THROUGH ALL SAMPLE PREPARATION <br /> PROCEDURES TO VERIFY METHOD PERFORMANCE ACCEPTABLE RANGE IS BASEDON HISTORICAL LABORATORY CONTROL DATA AND EPA REQUIREMENTS <br /> ANY OUT-0F-CONTROL OC DATA IS CLEARLY INDICATED <br /> -IME ENVIRONMENTAL SAMPLE IS MATRIX SPIKED SNRH METHOD COMPOUNDS AND % RECOVERY OF CONCENTRATION SPIKED INTO SAMPLE 15 <br /> CALCULATED REPORTED AS%RECOVERY ACCEPTABLE FLANGE FOR-NORMAL MATRIX SAMPLE"IS BASED ON HISTORICAL LABORATORY CONTROL DATA <br /> ANY OUT-0F-CONTROL QC DATA IS CLEARLY INDICATED <br /> 'SU$HQGATES COMPOUNDS REPRESENTATIVEOFAGROUPOFCOMPOUNDS SURROGATES ARE SPIKED INTO ENVIRONMENTAL SAMPLES AND%RECOVERY <br /> OF CONCENTRATION SPIKED IS CALCULATEDAND REPORTED ACCEPTABLE RANGE VARIES DEPENDING ON SAMPLE MATRIX AND ANALYSIS METHOD ANY <br /> OUT-OF.CONTROL DATA 15 CLEARLY INDICATED <br />