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To:+13038328106 f ,r` Page:3 of 7 2021-09-08 13:27:29 GMT 13032008630 From:Ben Langenfeld <br /> y,_t ' ,y One Government Gulch-PO Box 929 <br /> ' Kellogg,ID 83837-0929 <br /> 208 784-1258 <br /> wwtiv.syl,nsrl <br /> Colorado Calumet '' any Project]flame:Detroit City Mine 2019 <br /> Post Office Box 11 s. Work Order: XIG0418 <br /> Golden,CO 804d Reported; 20-Aug-21 16:06 <br /> Client SalnpU B Sampled:22,lob21 1635 <br /> SVLSam l4, :X1G0418-02 Rock Sample ReportPa e 1 of 1 ]tele By: 26-Jul-zl <br /> P (Rack) Pg Sampled By: BL <br /> Metbod i t" ArWyte Result Units RL MDL Dilution Batch Analyst Analyzed Notes <br /> Metals by EPA 60 7000 Senes <br /> E•PA6010D )I Arsenic <2.50 m8/kg 2.50 0_59 X1312.57 AIM 084412112:37 <br /> EPA6010D I, Barium 317 mV'k8 0.40 0.18 X131257 ATM 08r04t2112:37 <br /> EPA6010D Cadwurn 5.42 11IV{; OAO 0.14 X131257 ATM 081U,21 12:37 <br /> EPA60IOD Chromium 854 rrI 0.60 0.20 X131257 ATM 08414.2112:37 <br /> EPA6010D Lead 340 mglkg 1.50 0-33 X131257 ATM 09MQ7112.37 <br /> is <br /> EPA6010D Selenium 5.0 mg/kg 4.0 1.1 X131257 ATM 08WZl12.37 <br /> EPA6010D Silver 3.16 mgft 1.00 010 X131257 ACM 0&114i21 12:37 <br /> EPA 7471 B 1" Mercury <0.033 mg/kg 0.033 0.011 X131259 MAN 0&•04121 10:43 <br /> Acid/Base Accou &Sulfur Perms <br /> Modified Sobek ABA -35.2 TC&CO3/kT 1.2 N!A 08/19/2116:37 <br /> Modified Subek li AGP 40.0 TCaCO3/k7' 1.2 0.844 NIA DR119121 16:3T <br /> Modified Sobck � A_'+tP 4.7 'I'CaC031kT 0.3 X133024 PRM 0&118121 11:25 <br /> ModificdSobek Nor•cxtractabieSulfur <0.040 4 0.04D 0.027 X133168 PRM OVIW2116:37 <br /> 74fodificdSobek '-'Non-Sulfate Sulfur 1,29 % 0,040 0,027 X133168 PWM 0811912114:42 <br /> Modified Subek ` Pyrttle Sulfur t 28 Yo 0.04D 0.027D NIA 08119,21 16:37 <br /> Modified Sobek Sulfate Snthar 0.45 % 0,040 0,0270 NIA 08119/21 14:42 <br /> Modified Sobek Total Sulfur 1.73 % 0.D4D D,016 X133168 PKM U8116/21 15:08 <br /> Classical Chemist Parameters <br /> ASA9 ;j �SpcciRc 1.70 mmhos4m 0.005 Xi33170 PRM 08/1MI 15.15 <br /> E conductance@25°C <br /> ASTM E1915-11 Total Carbon <0.100 °/s 0.10D 0_D55 X133167 PRM OV16.121 16:40 <br /> `I <br /> ASTMEI915-I1 1bud Inorganic Carbon <0.100 % 0.100 0-055 X134039 PRM 08/16/2117:48 <br /> ASTM E1915-11 j` CF.Total Organic Carbon <0.200 % 0.200 GA 10 NJA 08116,21 17AS <br /> A <br /> Percent Solids/P t Moisture JiPercent Solids °/.Solids 49.9 % 0.1 XI32254 N1' OB104121 U7:OD <br /> This data has been wed for accuracy and has been authorized for release by the Laboratory Director or designee. <br /> Connor Williarns <br /> Project Manager <br /> 1IYI <br /> All <br /> 3. des <br /> MtY <br /> SVL holds the folio certifications: <br /> AZ0538,1D:1D00019 6 <br /> 0965(Microbiology),NV:1D000192007A,5058004001,UT(fN7)JI)WO192015.3,WA:C573 Work order Repnrt Page 3 of 8 <br /> .� yypf• <br /> 'jl <br />