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ACZ Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 <br />New Elk Coal Co., LLC <br />Project ID: <br />Sample ID: PRS 1 <br />ACZ Sample ID: <br />L33796-01 <br />Date Sampled: <br />10126116 14:40 <br />Date Received: <br />10127116 <br />Sample Matrix: <br />Surface Water <br />Wet Chemistry <br />_. <br />..,sus <br />s <br />Ililil'l'll' 'I <br />.. <br />! <br />•N <br />1. <br />Alkalinity as CaCO3 <br />SM2320B - Titration <br />Bicarbonate as <br />1 <br />107 <br />mg/L <br />2 <br />20 <br />10/29/16 0:00 <br />sck <br />CaCO3 <br />Carbonate as CaCO3 <br />1 <br />3.8 <br />B <br />mg/L <br />2 <br />20 <br />10/29/16 0:00 <br />sck <br />Hydroxide as CaCO3 <br />1 <br />U <br />mg/L <br />2 <br />20 <br />10/29/16 0:00 <br />sck <br />Total Alkalinity <br />1 <br />111 <br />mg/L <br />2 <br />20 <br />10/29/16 0:00 <br />sck <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 />2.9 <br />meq/L <br />11/08/16 0:00 <br />calc <br />Sum of Cations <br />2.8 <br />meq/L <br />11/08/16 0:00 <br />calc <br />Chloride <br />SM4500CI-E <br />1 <br />2 <br />* <br />mg/L <br />0.5 <br />2 <br />11/04/1613:03 <br />krh <br />Hardness as CaCO3 <br />SM2340B - Calculation <br />127 <br />mg/L <br />0.2 <br />5 <br />11/08/16 0:00 <br />calc <br />(dissolved) <br />Lab Filtration (0.45um <br />SOPWC050 <br />1 <br />10/31/16 14:15 <br />emk <br />filter) <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 />10/29/16 0:00 <br />sck <br />pH measured at <br />1 <br />23.8 <br />C <br />0.1 <br />0.1 <br />10/29/16 0:00 <br />sck <br />Residue, Filterable <br />SM2540C <br />1 <br />166 <br />mg/L <br />10 <br />20 <br />10/28/16 13:15 <br />emk <br />(TDS) @180C <br />Residue, Non- <br />SM2540D <br />1 <br />5.0 <br />B <br />mg/L <br />5 <br />20 <br />10/28/16 15:40 <br />emk <br />Filterable (TSS) <br />@105C <br />Sodium Adsorption <br />USGS - 11738-78 <br />0.20 <br />11/08/16 0:00 <br />calc <br />Ratio in Water <br />Sulfate <br />D516 -0v -07 -Turbidimetric <br />1 <br />27.7 <br />mg/L <br />1 <br />5 <br />11/03/1614:46 <br />spl <br />REPIN.02.06.05.01 * Please refer to Qualifier Reports for details. <br />L33796-1611080847 Page 3 of 12 <br />