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<br /> <br />88 Empire Drive <br />St Paul, MN 55103 <br />Tel: 651-642-1150 <br />Fax: 651-642-1239 <br /> <br />Liesch Associates, Inc. <br />13400 15th Avenue North, Suite A <br />Plymouth MN, 55441 <br /> <br />Project: Former Elk River Dump <br />Project Number: 79019.00 <br />Project Manager: Mr. Tom Johnson <br /> <br />Date Reported: <br />June 22, 2007 <br /> <br />Analyle <br /> <br />VOC GCMS 82608 <br />Legend Technical Services, Inc. <br /> <br />RL MDL Units Dilution Batch <br /> <br />Prepared Analyzed <br /> <br />Method <br /> <br />Notes <br /> <br />Result <br /> <br />MW-2 (0702739-01) Groundwater Received:06/08/0711:30 Sampled:06/07/0711:00 <br /> <br />Surrogate: Dibromofluoromethane <br /> <br />108 <br />100 <br /> <br />80-121 % <br /> <br />B7F1313 06113/07 <br /> <br />06113/07 <br /> <br />EPA 8260B <br /> <br />Surrogate: Toluene-d8 <br /> <br />80-120 % <br /> <br />MW-3(0702739-02) Groundwater Received:06/08/07 11 :30 Sampled:06/07/07 11 :30 <br /> <br />1.1.1,2- Tetrachloroethane <1,0 1.0 0.18 ug/L B7F1313 06/13/07 06/13/07 EPA 8260B <br />1 ,1 ,i-Trichloroethane <1.2 1.2 0,37 ug/L <br />1,1.2,2- Tetrachloroethane <1.0 1.0 0.20 ug/L <br />1,1.2- Trichloroethane <1.0 1.0 0.31 ug/L <br />1,1.2- Trichlorotrifluoroethane <1.0 1.0 0.29 ug/L <br />1.1-Dichloroethane <1,0 1.0 0.11 ug/L <br />1,1-Dichloroethene <1.0 1.0 0.20 ug/L <br />1.1-Dichloropropene <1.0 1.0 0.18 ug/L <br />1,2,3- Trichlorobenzene <5.0 5.0 0.70 ug/L <br />1.2,3- Trichloropropane <2.5 2.5 0.47 ug/L <br />1,2,4-Trichlorobenzene <5,0 5.0 0.55 ug/L <br />1,2,4- Trimethylbenzene <1,0 1.0 0.21 ug/L <br />1,2-Dibromo-3-chloropropane <5.0 5.0 1.1 ug/L <br />1 ,2-Dibromoethane (EDB) <2.5 2.5 0,32 ug/L <br />1.2-Dichlorobenzene <1.0 1.0 0.25 ug/L <br />1,2-Dichloroethane <1.0 1.0 0,11 ug/L <br />1.2-Dichloropropane <1.0 1.0 0.30 ug/L <br />1,3,5- Trimethylbenzene <1.0 1.0 .0.19 ug/L <br />1.3-Dichlorobenzene <1.0 1.0 0.26 ug/L <br />1.3-Dichloropropane <1.0 1.0 0.26 ug/L <br />1.4-Dichlorobenzene <1,0 1.0 0.20 ug/L <br />2,2-Dichloropropane <5.0 5.0 0.31 ug/L <br />2-Butanone <20 20 1,1 ug/L <br />2-Chlorotoluene <1.0 1.0 0.16 ug/L <br />4-Chlorotoluene <1.0 1.0 0.11 ug/L <br />Acetone <20 20 2.3 ug/L <br />Allyl chloride <20 20 0.36 ug/L <br />Benzene <1.0 1.0 0.039 ug/L <br />Bromobenzene <1.0 1.0 0,30 ug/L <br />Bromochloromethane <1.0 1.0 0.28 ug/L <br />Bromodichloromethane <1.0 1,0 0.25 ug/L <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 analytical report must be reproduced <br /> in its entirety. <br /> Page 5 of 15 <br />