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' SIERRA LABORATORIES INC <br /> Park Environmental Corporation Sierra Client No. 10000-92 Date Sampled 091-19/92 <br /> 2240 Professional Drive.Suite 130 Sierra ProjeiaNm, SP•310-92 DawReceired: 1601192 <br /> 11o3eyflte*Ciilftrnla95661 Client Project No. 1125-11 Date Prepared: 10101 IOIOb <br /> ' Client Project Date Analyzed- ]Oi�R1-IOM6 <br /> N/A <br /> ' Report Date. .10V09/92 <br /> Laboratory Control Sample Report <br /> ' ComD4tind Analysts Tvve y <br />� aC gaaES <br /> ' Total Lead EPA Method 7421 103 (50-150) <br /> Quality Control Reference Number #55460 <br /> Parameter a nalyaus'rjroe Per cent Recovery <br /> aL Ranee <br /> ' TPH as Gasoline 8015-Modified(CADHS-LLTFF) 98 (50-150) <br /> TPH as Diesel 8015-Modified(CADHS-LUFr) 90 (50-150) <br /> Quality Control Reference Number G002 100192(1)g2a0011 054 <br /> ' Comoound Analysis Tyee Per cent Recovery <br /> $ Ran= <br /> Benzene EPA 8020(BTEX) 87 (28-167) <br /> Toluene EPA 8020(BTEX) 99 (41-138) <br /> Ethylbenzene EPA 8020(BTEC) 101 (38-150) <br /> Xylenes(Total) EPA 8020(BTEX) 102 (35-146) <br /> ' Quality Control Reference Number G002-100192(1)g2a0011-054 <br /> 1 <br /> 1 � <br />