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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />ACZ <br />AC2 la6orvtorier, fnc. Lab Sample m: L9I38-/8 <br />30000 DownhiUU Drive Client Sample ID: 79-61 , ~ <br />Steamboat Springy, CO 80487 Client Project m: . I~e° <br />(800) 334-5493 ACZ Report m: RG25470 ~~' ~ <br />Kerr Coal Company Date Sampled: 4/15/96 15: 00 <br />P.O. Box 487 Date Received: 4/19/96 <br />Walden, CO 80480 Date Reported: 5/10/96 <br />George Patterson <br /> Sample Matrix: Srvface Rater <br />Field Data <br />Conductivity (Field) Field Measurement 920 umhos/cm 4/25/96 jm <br />pH (Field) Field Meaurement B.0 units 425/96 jm <br />Tcmperisura (Field) Field Meaurement 7.4 C 425/96 jm <br />Metals Anal sis <br />Calcium, dissolved M200.7 ICP 48.1 mg/L 0.2 1 5!1196 n <br />Iron, dissolved M200.71CP 0.13 mg/L 0.01 0.05 5!1/96 n <br />Magnesium, dissolved M200.71CP 12.9 mg/L 0.2 1 S2A6 n <br />Manganese, dissolved M200.7 ICP 0.031 mg/L 0.005 0.03 5!1196 n <br />Potassium, dissolved M200.71CP 3.1 mg/L 0.3 1 5296 n <br />Sodium, dissolved M200.7ICP 143.0 mg/L 03 1 S2N6 n <br />Wet Chemist <br />Alkalinity az CaC03 M310.1 <br />BicarbonatessCaC03 402 mg/L 2 10 S/IN6 %1 <br />CarboniseazCaC03 U mg/L 2 10 5/IN6 u <br />HydmzideazCaC03 U mg/L 2 10 5/IN6 ss <br />Total Alkalinity ~ 402 mg/L 2 10 5/IN6 ss <br />Cation-Anion Balance Calculision <br />Cation-Anion Balance -1.5 % S/ION6 talc <br />Sum of Anions 10.10 mer}/L O.OI 0.05 5/ION6 talc <br />Sum of Cations 9.84 meq/L 0.01 0.03 5/ION6 talc <br />Chloride M325.2-Colorimetric (RFA) IS mg/L 1 S 52/96 hm <br />Hardness az CaC07 Calculation baxd on dissolved Mg & Ca 177 mgyL 1 7 5/ION6 tale <br />Lab Filtration ••• 4/30N6 jaw <br />Lab Filtration & Acidification ••• 4/30N6 jaw <br />Nitrate az N, dissolved M353.2 - Automised 0.03 B mglL 0.02 0.1 4/30N6 hm <br />NitrisdNitrite az N, dissolved M353.2 - Automised Cadmium Reductio 0.05 B mg/L 0.02 0.1 4/70N6 hm <br />Nivite az N, dissolved M353.2 - Automised 0.02 B mg/L O.OI 0.05 4/30N6 hm <br />Residue, Filterable (TDS)Q180C M160.1-Gravimetric 580 mg/L 10 20 5/IN6 sak <br />Sodium Absorption Ratio in Water USGS -11778-78 4.78 0.03 0.15 S/ION6 talc <br />Sulfise M375.3-Gravimetric 80 mg/L 10 20 5296 sak <br />TDS (calculated) Calculision 544 mg/L 10 50 5/lON6 talc <br />TDS (ratio - mcazured/cisculated) Calculation 1.07 5/ION6 talc <br />i <br />~IU =Analyze waz analyzed for but not detected at the indicated MDL <br />~B = Analym concentration detected at a value between MDL and PQL <br />POL = Practical Quanulation Limit <br />REPIN10t 03 95.07 Page 1 0l 1 <br />Vice President o(Operations: Ralph Poulson <br />