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Acz <br />Acz laborarorirt, lnc. Lab Sample ID: L/3455-/6 <br />30400 DownhiD Drivr Client Sample lD: AP-2 <br />StramboN Springs, CO 80487 Client Project 1D: <br />(800) 334-5493 ACZ Report ID: RG41872 <br />Kerr Coal Co. Date Sampled: 4/!6/97 11:30 <br />P.O. Box 487 Date Received: 4/!8/97 <br />Walden, CO 80480 Date Reported: 4/30/97 <br />Jim Mossman <br />cc: Jay James Sample Matrix: Surface Water <br />Hardncss az CaC03 Calculation based on dissolved Mg & Ca 287 mg/L I 7 4/30/97 talc <br />Lab Filration ••' 4/18/97 laa <br />Lab Filtration & Acidification "• 4/18/97 laa <br />Nivale az N, dissolved M353.2 - Automatcd Cadmium Rcduction 0.08 B mg/L 0.02 0.1 4/18/97 jb <br />NivazeMivite az N, dissolved M353.2 -Automated Cadmium Reduction 0.08 B mg/L 0.02 O.l 4/I 5/97 jb <br />Nitrite az N, dissolved M353.2 -Automated Cadmium Reduction U mg/L 0.01 0.05 4/18/97 jb <br />Phosphorus. ortho dissolved M365.1 - Automared Ascorbic Acid 0.014 B mg/L 0.005 0.03 4/18/97 jb <br />Residue, Filterable (TDS) ®180C MI60.1 -Gravimetric 380 mg/L IO 20 422/97 bgb <br />Sodium Absorption Ratio in Waler USGS -11738-78 1.34 0.03 0.15 4!30/97 talc <br />Sulfate M375.3-Gravimetric 40 mg/L IO 20 428N7 bgb <br />TDS (calculatcd) Calculation 401 mg/L 10 50 4/30/97 talc <br />TD$ (ratio - meazured/calculated) Calculation 0.95 4/30/97 talc <br /> <br />t <br />,U =Analyze waz analyzed for but not dctcctcd at the indicated MDL <br />i <br />IB =Analyze concentrazion detected at a value between MDL end PQL <br />~PQL =Practical Quantita[ion Limi[ <br />L <br />REPIN701.03.95.01 Page 2 of 2 <br />~Y~ <br />Vice President of Operations: Ralph Poulson <br />