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Laboratories Inc. <br /> 6L-- <br /> Environmental Testing Laboratory Since 1949 <br /> Hers'Associates Project: Austin Road/NCYCC Drilling Reported: 12/19/2008 13:17 <br /> 4630 South Highway 94 North Outer Road Project Number: [none] <br /> Saint Charles,MO 63304 Project Manager. David Vasbinder <br /> Water Analysis (General Chemistry) <br /> Quality Control Repo - Precision i& Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sample T Sample ID Result Result Added Units RPD Recove RPD Recove Lab Quals <br /> Total Sulfide BRL0747 Duplicate 0816135-05 ND ND mg/L 10 <br /> Matrix Spike 0816136-05 ND 0.47296 0.50000 mg/L 94.6 80 120 <br /> Matrix Spike Duplicate 0816136-05 ND 0.47296 0.50000 mg/L 0 94.6 10 80-120 <br /> ..__-......._..------- <br /> 10 <br /> Chloride BRL0828 Duplicate 0816167-01 35-218 35.550 mg/L 0.9 <br /> Matrix Spike 0816167-01 35.218 151.17 101.01 mg/L 115 80-120 <br /> Matrix Spike Duplicate 0816167-01 35.218 151.21 101.01 mg/L 0 115 10 80-120 <br /> _ ---_._.._..---_.._ _---- <br /> Nitrate as N BRL0828 Duplicate 0816167-01 0.035000 0.041000 mg/L 15.8 10 J,A02 <br /> Matrix Spike 0816167-01 0.035000 5.3848 5.0505 mg/L 106 80-120 <br /> Matrix Spike Duplicate 0816167-01 0.035000 5.4000 5.0505 mg/L 0 106 10 SO.-120 <br /> Sulfate BRL0828 Duplicate 0816167-01 64.762 64.904 mg/L 0.2 10 <br /> Matrix Spike 0816167-01 64.762 175.55 101.01 mg/L 110 80-120 <br /> Matrix Spike Duplicate 0816167-01 64.762 175.91 101.01 mg/L 0 110 10 80-120 <br /> Total Cyanide--� BRL0896 Duplicate 0616165-01 ND ND mg& 10 <br /> Matrix Spike 0816165-01 ND 0.098689 0.10000 mg/L 98.7 90-110 <br /> Matrix Spike Duplicate 0816165-01 ND 0.10812 0.10000 mg/L 9.0 108 20 90-110 <br /> Bicarbonate BRL0990 Duplicate 0816165-01 357.08 360.54 mg/L. 1.0 10 <br /> Matra Spike 0816165-01 357.08 510.10 152.38 mg/L 100 80-120 <br /> Matrix Spike Duplicate 0816165-01 357.08 517.06 152.38 mgt 4.9 105 10 80-120 <br /> 120 <br /> Carbonate BRL0990 Duplicate 0816155-01 20.520 19.380 mg/L 5.7 <br /> 10 <br /> Total Dissolved Solids @ 180 C BRL1092 Duplicate 0816127-01 1910.0 1930.0 mg/L 1.0 1 -- <br /> Non-Volatile Organic Carbon BRL1151 Duplicate 0816166-01 0.18800 0.23400 mg/L 21.8 10 J A02 <br /> Matrix Spike 0816166-01 0.18800 4.6824 5.0251 mg/L 89.4 80-120 <br /> Matrix Spike Duplicate 0816166-01 0.18800 4.7337 5.0251 mg/L 1.2 90.5 10 80-120 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety_ <br /> All results listed in this report are for the exclusive use of the submitting pasts'. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. Page 30 of 54 <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com 9 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />