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Roy F. Weston, Inc. - Stockton Laboratory <br /> Purgeable Aromatics by GC, Method 602 Report Date• 10/17/92 16 26 <br /> RFW Batch Number• 9210SO19 Client WESTON ECON/ EAST BAY MD Work Order: 06415-001-002 Page___ 2 <br /> Cust ID. BLK BS BLK BLK BS BLK BLK BS <br /> sample RFW# 92SVo283-MB1 92SVo283-MB2 92SVo283-M62 92SVo283-03 92SVo283-MB3 <br /> Information Matrix. WATER WATER WATER WATER WATER <br /> D F. . 1.00 l 00 1 00 1.00 1 00 <br /> Units: UG/L UG/L UG/L UG/L UG/L <br /> aaa-Trifluorotoluene 103 % 104 % 134 * % 106 % 112 % <br /> Benzene 114 % 0 50 U 142 * % 0 50 U 124 <br /> Ethylbenzene 112 % 0 50 U 123 * % 0 50 U 111 <br /> Toluene 107 % 0.50 U 125 * % 0 50 U 109 <br /> Xylene (total ) 0.50 U 0.50 U 0.50 U 0.50 U 0.50 U <br /> U= Analyzed, not detected. J= Present below detection limit B= Present in blank NR= Not requested. NS= Not spiked. <br /> %= Percent recovery. D= Diluted out. I= Interference. NA= Not Applicable. *= Outside of Advisory limits. <br />