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' SIERRA LABORATORIES INC <br /> i <br /> ' Park Environmental Corporation Sierra Client No 10000-92 Date Sampled. 10!09!32 <br /> 2140 Professional Drive,Suite 130 Sierra Project No SP-323-92 Date Received. 10110/92 <br /> Roseville,California 95661 Client Project No. 1125-11 Bate Prepared_ 1/92 <br /> ' Client Project* Date Analyzed. 10!10.10(11 <br /> Y/A <br /> ) <br /> t <br /> ' Report Date: 10()5191 <br /> ' Laboratory Control Sample Report <br /> I <br /> ' Parameter Nnalysis TXRg Per-cent Recovery <br /> le 88IIE1< <br /> ' TPH as Gasoline EPA 801541 62 (50-150) <br /> Quality Control Reference Number G601-101192(y)g1b0008 031 <br /> i <br /> ' Compound Analysis Type Per-cent Recovery <br /> % Ranee <br /> Benzene EPA 8020(BTEX) 68 (28-167) <br /> ' Toluene EPA 8020(BTEX) 70 (41-138) <br /> Ethylbenzene EPA 8020(BTEX) 75 (38-150) <br /> Xylenes(Total) EPA 8020(BTEX) 72 (35-146) <br /> Quality Control Reference Number G001-101192(v)g1b0008-011 <br />