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TestAm <br />885Jarvis <br />rica <br />Megan Hill, CA 95037 <br />5037 <br />(408) 776-9600 <br />FAX (408) 782-6308 <br />THE LEADER IN ENVIRONME <br />TAL TESTING <br />www.tcstemericainc.com <br />Union Pacific Railroad - Stockton <br />Project: NEW PROFILE <br />MQH0220 <br />833 E. 8th St. <br />Project Number. [tone] <br />Reported: <br />Stockton CA, 95206 <br />Projeet Manager. Jim Diel <br />08/21/07 09:49 <br />Semivolati <br />a Organic Compounds by EPA Method 8270C - Quality Control <br />TestAmerica - Morgan Hill, CA <br />Reporting Spike Source <br />%REC <br />RPD <br />Analyte <br />Result <br />Limit Units Level Result <br />%REC <br />Limits <br />RPD <br />Limit Notes <br />Batch 7H15033 - EPA 3580A it <br />tion / EPA 8270C <br />Matrix Spike Dup (7H15033-MSDl) <br />Source: MQH0147-01 Prepared: 08/15/07 Analyzed: 08/16/07 <br />Acenaphthene <br />553 <br />75 mg/kg 500 ND <br />111 <br />65-115 <br />0.8 <br />35 <br />4-Chloro-3-methylphenol <br />579 <br />75 500 ND <br />116 <br />65-115 <br />2 <br />40 M7 <br />2 -Chlorophenol <br />570 <br />75 500 ND <br />114 <br />65-115 <br />2 <br />35 <br />1,4 -Dichlorobenzene <br />570 <br />75 500 ND <br />114 <br />65-115 <br />2 <br />30 <br />2,4-Dinitrotoluene <br />522 <br />75 500 ND <br />104 <br />60-115 <br />2 <br />40 <br />4-Nitrophenol <br />419 <br />150 500 ND <br />84 <br />45-120 <br />1 <br />40 <br />N-Nitrosodi-n-propylamine <br />583 <br />75 500 ND <br />117 <br />65-115 <br />3 <br />30 M7 <br />PentacWorophenol <br />328 <br />150 500 ND <br />66 <br />40-115 <br />0.2 <br />40 <br />Phenol <br />545 <br />75 500 ND <br />109 <br />65-115 <br />3 <br />30 <br />Pyrene <br />603 <br />75 500 ND <br />121 <br />65-115 <br />1 <br />30 M7 <br />1,2,4-Trichlorobenzene <br />582 <br />75 500 ND <br />116 <br />65-115 <br />1 <br />30 M7 <br />Surrogate: 2-Muorophenol <br />535 <br />500 <br />107 <br />10-125 <br />Surrogate: Phenol -d6 <br />558 <br />500 <br />112 <br />10-150 <br />Surrogate: Nitrobenzene -d5 <br />551 <br />500 <br />110 <br />55-120 <br />Surrogate:2-F7uorobiphenyl <br />532 <br />500 <br />106 <br />50-120 <br />Surrogate: 2,4,6-Tribromophenol <br />558 <br />500 <br />112 <br />45-120 <br />Surrogate: p-Terphenyl-d14 <br />560 <br />500 <br />112 <br />55-120 <br />1 estArnenca - Morgan tiW, UA <br />The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document. Unless otherwise stated, results are reported on a wet weight basis. <br />This analytical report must be reproduced in its entirety. <br />Page 16 of 17 <br />