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Technical Services, Inc. <br />www.tegend-group.com <br />88 Empire Drive <br />St Paul, MN 55103 <br />Tel: 651-642-1150 <br />Fax: 651-642-1239 <br />Liesch Associates, Inc. Project: Elk River Dump <br />1340015th Avenue North, Suite A Projecl Number: [none} Work Order #: 1103157 <br />Plymouth, MN 55441 Project Manager. Mr. Tom Johnson Date Reported: 07!28!11 <br />VOC 828©B -Quality Control <br />Legend Technical Services, Inc. <br />Spike Source °!°REC %RPD <br />~nalyte Result RL MDL units Levef Result %REC Limits %RPD Limit Notes <br />Batch B1G2013 • EPA 5030 Water {Purge and Trap) <br />Matrix Spike Dup (81G2013-MSDi} Source: 1103187.01 Prepared & Analyzed: 07/20/11 <br />1,4•Dlchloro6enzene 49.9 1.0 0.081 ug1L 50.0 <1.0 99.7 75-125 1.03 20 <br />2-Chlorotoluene 48.2 1.0 0.081 ug1L 50.0 <1.0 96.3 75-125 1.52 20 <br />Benzene 51.8 1.0 0.071 ug/l. 50.0 <1.0 104 BO.120 1.37 20 <br />Bromotorm 49.4 5.0 0.26 ugrL 50.0 <5.0 98.7 80.120 3,14 20 <br />Chlorobenzene 51.8 1.0 0.20 ugrL 50.0 <1.0 103 80-120 2.74 20 <br />Chloroform 58.2 1.4 0.15 uglL 50.0 7.88 101 79.8.125 1.91 20 <br />Ethylbenzene 50.4 1.0 0,28 ug/L 50.0 <1,0 101 80-120 d.82 20 <br />n•Bulyibenzene 80.8 2.5 0.15 uglL 50.0 <2,5 122 75-130 0.893 20 <br />n•Propyibenzene 51.7 1.0 0.094 ug/L 50.0 <i.0 103 75-125 0.0352 20 <br />Toluene 53.fi 1.0 D.1D uglL 50.0 ci.0 107 80-120 0.135 20 <br />Trichlorcethene 49.8 1.0 0.18 ugrt. 50.0 <1,0 98.1 SO-120 4.492 20 <br />Vinyl chloride 49.0 1.0 0.21 uglL 50.0 <1.0 97.8 75-134 1.15 20 <br />Surrogate:4-13romofluorobenzene 52.8 ugrL 50.0 108 80.121 <br />Surrogate: Dibromofluoromelhane 51.8 ug/L 50.0 f03 79.9-12f <br />Surrogate: Touene-d8 52.0 ugiL 50.0 704 80.120 <br />Legend Technical Services, Inc. The results in this report apply to the samples analyzed in accordance with <br />the chain of custody document. This analyfica! report must be reproduced <br />in its entirety. <br />Page 12 of 14 <br />