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r~ <br />L_J <br />Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80481(800) 334-5493 <br />Metals Analysis <br />Calcium, dissolved M200.7 ICP 42.2 mg/L 0.2 1 12/05/02 22:26 kdw <br />Iron, dissolved M200.7 ICP 0.05 mg/L 0.01 0.05 12/07/02 5:09 bf <br />Iron, total M200.7 ICP 0.15 mg/L 0.01 0.05 12/11/02 17:53 kdw <br />Iron, total recoverable M200.7 ICP 0.17 mg/L 0.01 0.05 12/17/02 15:24 kdw <br />Lead, dissolved M200.8 ICP-MS U mg/L 0.0001 0.0005 12/14/02 20:10 Icj <br />Magnesium, dissolved M200.7 ICP 7.8 mg/L 0.2 1 12/07/02 5:09 bf <br />Magnesium, total M200.71CP 7.4 mglL 0.2 1 12/11/02 17:53 kdw <br />Manganese, dissolved M200.7 ICP 0.035 mg/L 0.005 0.03 12/05/02 22:26 kdw <br />Manganese, total M200.7 ICP 0.056 mg/L 0.005 0.03 12/11/02 17:53 kdw <br />Potassium, dissolved M200.7 ICP 1.2 mg/L 0.3 1 12/07/02 5:09 bt <br />Selenium, dissolved M200.8 ICP-MS U mg/L 0.002 0.008 12/14/02 20:10 Icj <br />Sodium, dissolved M200.7 ICP 7.7 mg/L 0.3 1 12/07/02 5:09 bt <br />Metals Prep <br />. Total Hot Plate M200.2 ICP 12/10/02 20:48 cdr <br />Digestion <br />Total Recoverable M200.2 ICP 12/16/02 16:35 cdr <br />Digestion <br />Wet Chemistry <br />Alkalinity as CaCO3 SM23208 -Titration <br />r1 <br />LJ <br />Bicarbonate as 134 mg/L 2 10 12/04/02 0:00 Izg <br />CaCO3 <br />Carbonate as U mg/L 2 10 12/04/02 0:00 Izg <br />CaCO3 <br />Hydroxide as CaCO3 U mglL 2 10 12/04/02 0:00 Izg <br />Total Alkalinity 134 mg/L 2 10 12/04/02 0:00 Izg <br />Chloride M325.2 - Colorimetric 1 B mg/L 1 5 12!14/02 9:57 pll <br />Hardness as CaCO3 SM23408 -Calculation 138 mg/L 1 7 12/18/02 0:00 talc <br />Lab Filtration ~ SM 3030 8 12/02/02 10:08 cdr <br />Lab Filhation & SM 3030 B 12/04/02 16:00 cdr <br />Acidification <br />Residue, Filterable M160.1 -Gravimelric 170 mg/L 10 20 12/02/02 14:09 mah <br />(TDS) @180C , <br />Residue, Non- M160.2 -Gravimelric UH mg/L 5 20 12109/02 13:36 Izg <br />Filterable (TSS) <br />@105C <br />Sodium Absorption USGS - 11738-78 0.28 0.03 0.15 12/18/02 0:00 talc <br />Ratio in Water <br />Sulfate M375.3 - Gravimetric 30 mg/L 10 20 12/05/02 10:16 Izg <br />REPIN.01.11.00.0 <br />L39523: Paee 3 of 16 <br />Lorencito Coal Company ACZ ID: L39523-02 <br />Project ID: NEW ElJ( MINE Date Sampled: 11/26/02 13:03 <br />Sample ID: PRS-2 Date Received: 11/27/02 <br />Sample Matrix: Surface Water <br />