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•: <br />Laboratories, Inc. <br />2773 Downhill Dnve Steamboat Springs, CO 80487(800) 334-5493 <br />Kerr Coal Company ACZ Sample ID: L50701-OS <br />Project ID: Date Sampled: 04/19!05 15:00 <br />Sample ID: 79-1 Date Received: 04!20/05 <br /> Sample Matrix: Ground Water <br />Field Data <br />'r' : -„a-amm ~` .,n..r, ~3,i~.. F P , W b <br />N '~2,. 4 <br />Conductivity (Field) Field Measurement 100 umhos/cm 04/19/05 15:00 jm <br />pH (Field) Field Measurement 7.9 units 04/19/05 15:00 jm <br />Temperature (Field) Field Measurement 7.0 C 04/19/05 15:00 jm <br />Metals Analysis <br /> <br />Calcium, dissolved M200.7 ICP 14.1 mg/L 0.2 1 05103/0518:48 wfg <br />Iron, dissolved M200.7 ICP 0.21 mg/L 0.01 0.05 OS/03105 18:48 wfg <br />Magnesium, dissolved M200.7 ICP 1.4 mg/L 0.2 1 05/03/05 18:48 wfg <br />Manganese, dissolved M200.7 ICP 0.044 mg/L 0.005 0.03 05103/05 18:48 vrfg <br />Potassium, dissolved M200.7 ICP 1.8 mg/L 0.3 1 OSI05/OS 12:29 mea <br />Sodium, dissolved M200.7 ICP 457 mg/L 0.3 1 05105105 12:29 mea <br />Wet Chemistry <br /> <br />Alkalinity as CaC03 SM23208 -Titration <br />Bicarbonate as 728 mg/L 2 10 05/03/05 0:00 ct <br />CaC03 <br />Carbonate as CaC03 U mg/L 2 10 05/03/05 0:00 ct <br />Hydroxide as CaC03 U mg/L 2 10 05103/05 0:00 ct <br />Total Alkalinity 728 mg/L 2 10 05/03105 0:00 ct <br />Cation-Anion Balance Calculation <br />Cation-Anion Balance -1.9 % OS/10/OS 0:00 talc <br />Sum of Anions 21.8 meq/L 0.1 0.5 05!10/05 0:00 talc <br />Sum of Cations 21.0 meq/L 0.1 0.5 05!70/05 0:00 talc <br />Chloride M325.2-Colorimetric 250 mg/L 10 50 04/3010521:21 pjb <br />Hardness as CaC03 SM2340B -Calculation 41 mglL 1 7 05/10/05 0:00 talc <br />Lab Filtration SM 3030 B ` 04/22/05 13:46 akllms <br />Lab Filtration & SM 3030 B 04/21/05 16:53 ak <br />Acidification <br />Nitrate as N, dissolved Calculation: N03N02 minus N02 U mg/L 0.02 0.1 05/10/05 0:00 talc <br />Nitrate/Nitrite as N, M353,2 -Automated Cadmium U mg/L 0.02 0.1 04/20!05 20:37 pjb <br />dissolved Reduction <br />Nitrite as N, dissolved M353,2 -Automated Cadmium U mg/L 0.01 0.05 04120/05 20:37 pjb <br /> Reduction <br />Residue, Filterable M160.1 - Gravimelric 1180 mg/L 10 20 04!26105 10:49 Ims <br />(TDS) @180C <br />Sodium Absorption USGS - 11738-78 31.40 0.03 0.15 05/10!05 0:00 talc <br />Ratio in Water <br />Sulfate M375.3-Gravimetric 10 B mg/L 10 50 04/28/0517:57 jjr(tl <br />TDS (calculated) Calculation 1170 mg/L 10 50 OS/10/050:00 talc <br />TDS (ratio - Calculation 1.01 05/10/OS 0:00 talc <br />measured/calculated) <br />REPIN.01.11.00.01 'Please refer fo Extended Qualifier Report for detail <br />L50701: Page6 of 15 <br /> <br /> <br /> <br />