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ENEROYLABORATOR/E4 INC. - 2393 ltCreek Highway (82601) - P.O. Box3258 - Casper, WY82802 <br />Toll Free 888.235.0515 - 3072350515 -Fax 072341639 - cssper eneigylab.cbm - www.&vAjW.com <br />CLIENT: Denison Mines (USA) Corp <br />Project: Sunday Mines Attenuation Tests - <br />Sample Delivery Group: C09010051 <br />Dab: 2&Jan-09 <br />CASE NARRATIVE • <br />ORIGINAL SAMPLE SUBMITTAL(S) <br />All original sample submittals have been returned with th data package. <br />SAMPLE TEMPERATURE COMPLIANCE: 4'C (i=) <br />Temperature of samples received may not be considereproperty preserved by accepted standards. Samples that are hand <br />delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun. <br />GROSS ALPHA ANALYSIS <br />Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters. Data provided by <br />this method for non potable waters should be viewed as I consistent <br />RADON IN AIR ANALYSIS <br />The desired exposure time is 48 hours (2 days). The tim delay in returning the canister to the laboratory for processing <br />should be as short as possible to avoid excessive decay. Maximum recommended delay between end of exposure to <br />beginning of counting should not exceed 8 days. <br />SOIUSOLID SAMPLES <br />All samples reported on an as received basis unless <br />ATRAZINE, SIMAZINE AND PCB ANALYSIS USING E <br />Data for Atrazine and Simazine are reported from EPA <br />505 reflects the results for seven individual Aroclors. V <br />meets EPA compliance criteria for PCB monitoring. <br />indicated. <br />505 <br />i.2, not from EPA 505. Data reported by ELI using EPA method <br />n the results for all seven are ND (not detected), the sample <br />SUBCONTRACTING ANALYSIS <br />Subcontracting of sample analyses to an outside laboratory may be required. If so, ENERGY LABORATORIES will utilize its <br />branch laboratories or qualified contract laboratories for is service. Any such laboratories will be indicated within the <br />Laboratory Analytical Report. <br />BRANCH LABORATORY LOCATIONS <br />eli-b - Energy Laboratories, Inc. - Billings, MT <br />eli-g - Energy Laboratories, inc. - Gillette, WY <br />eli-h - Energy Laboratories, Inc. - Helena, MT <br />eli-r - Energy Laboratories, Inc. - Rapid City, SD <br />ell-t - Energy Laboratories, inc. - College Station, TX <br />CERTFICATIONS: <br />USEPA: WY00002; FL-DOH NELAC: E87641; California: 02118CA <br />Oregon: WY200001; Utah: 3072350515; Virginia: 000511; Washington: C1903 <br />ISO 17025 DISCLAIMER: <br />The results of this Analytical Report relate only to the its s submitted for analysis. <br />ENERGY LABORATORIES, INC. - CASPER,WY certifles that certain method selections contained in this report meet <br />requirements as set forth by the above accrediting autho ties. Some results requested by the client may not be covered <br />under these certifications. All analysis data to be submit for regulatory enforcement should be certifled in the sample <br />state of origin. Please verify ELI's certification coverage y visiting www.energylab.com <br />ELI appreciates the opportunity to provide you with this <br />web page www.energylab.com. <br />THIS IS THE FINAL PAGE OF <br />service. For additional information and services visit our <br />LABORATORY ANALYTICAL REPORT <br />C <br />0