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�CiZ Laboratories, Inc. <br />2773 Downhill Drive Steamboat Swinas. CO 80487!8001 334-5493 <br />New Elk Coal Co., LLC ACZ Sample ID: L33648-01 <br />Project ID: Date Sampled: 90/18/96 14:35 <br />Sample ID: PRS 4 Date Received: 10/19/16 <br />Sample Matrix: Surface Water <br />Inorganic Prep <br />Acidify and filter Colorado 5 CCR 1002- 10/21/16 10:04 scp <br />(Potentially Dissolved) 31.5.31 (2009) <br />Total Hot Plate M200.2 ICP 11/03/16 9:58 aeb <br />Digestion <br />Total Recoverable M200.2 ICP 10/25/16 12:33 gss <br />Digestion <br />Metals Analysis <br />Calcium, dissolved <br />M200.7 ICP <br />1 <br />38.6 <br />mg/L <br />0.1 <br />0.5 <br />11/07/16 14:36 <br />gss <br />Iron, dissolved <br />M200.7 ICP <br />1 <br />0.06 <br />mg/L <br />0.02 <br />0.05 <br />11/07/16 14:36 <br />gss <br />Iron, total recoverable <br />M200.7 ICP <br />1 <br />0.09 <br />mg/L <br />0.02 <br />0.05 <br />10/26/16 17:03 <br />gss <br />Magnesium, dissolved <br />M200.7 ICP <br />1 <br />5.8 <br />mg/L <br />0.2 <br />1 <br />11/07/16 14:36 <br />gss <br />Manganese, dissolved <br />M200.7 ICP <br />1 <br />0.005 <br />B <br />mg/L <br />0.005 <br />0.03 <br />11/07/16 14:36 <br />gss <br />Manganese, total <br />M200.7 ICP <br />1 <br />0.021 <br />B <br />mg/L <br />0.005 <br />0.03 <br />11/04/16 13:25 <br />aeb <br />Potassium, dissolved <br />M200.7 ICP <br />1 <br />2.2 <br />mg/L <br />0.2 <br />1 <br />11/07/16 14:36 <br />gss <br />Selenium, potentially <br />M200.8 ICP -MS <br />1 <br />0.0003 <br />mg/L <br />0.0001 <br />0.0003 <br />10/21/16 15:18 <br />mfm <br />dissolved <br />Sodium, dissolved <br />M200.7 ICP <br />1 <br />5.9 <br />mg/L <br />0.2 <br />1 <br />11/07/16 14:36 <br />gss <br />Wet Chemistry <br />Alkalinity as CaCO3 <br />SM2320B - Titration <br />Bicarbonate as <br />1 <br />108 <br />H <br />mg/L <br />2 <br />20 <br />11/02/16 0:00 <br />emk <br />CaCO3 <br />Carbonate as CaCO3 <br />1 <br />UH <br />mg/L <br />2 <br />20 <br />11/02/16 0:00 <br />emk <br />Hydroxide as CaCO3 <br />1 <br />UH <br />mg/L <br />2 <br />20 <br />11/02/16 0:00 <br />emk <br />Total Alkalinity <br />1 <br />109 <br />H <br />mg/L <br />2 <br />20 <br />11/02/16 0:00 <br />emk <br />Cation -Anion Balance <br />Calculation <br />Cation -Anion Balance <br />-1.8 <br />% <br />11/08/16 0:00 <br />calc <br />Sum of Anions <br />2.8 <br />meq/L <br />11/08/16 0:00 <br />calc <br />Sum of Cations <br />2.7 <br />meq/L <br />11/08/16 0:00 <br />calc <br />Chloride <br />SM4500CI-E <br />1 <br />2.7 <br />mg/L <br />0.5 <br />2 <br />11/04/16 9:59 <br />krh <br />Hardness as CaCO3 <br />SM2340B- Calculation <br />120 <br />mg/L <br />0.2 <br />5 <br />11/08/16 0:00 <br />calc <br />(dissolved) <br />Lab Filtration (0.45um) <br />M200.7/200.8/3005A <br />1 <br />11/03/16 14:00 <br />gss <br />& Acidification <br />pH (lab) <br />SM4500H+ B <br />pH <br />1 <br />8.4 <br />H <br />units <br />0.1 <br />0.1 <br />10/21/16 0:00 <br />abd <br />pH measured at <br />1 <br />23.0 <br />C <br />0.1 <br />0.1 <br />10/21/16 0:00 <br />abd <br />Residue, Non- <br />SM2540D <br />1 <br />U <br />mg/L <br />5 <br />20 <br />10/20/16 13:56 <br />sck <br />Filterable (TSS) <br />@105C <br />Sodium Adsorption <br />USGS - 11738-78 <br />0.24 <br />11/08/16 0:00 <br />calc <br />Ratio in Water <br />Sulfate <br />D516 -021 -07 -Turbidimetric <br />1 <br />26.5 <br />mg/L <br />1 <br />5 <br />11/03/1612:22 <br />spl <br />REPIN.02.06.05.01 "Please refer to Qualifier Reports for details. <br />L33648-1611090815 Page 3 of 12 <br />