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. ~ ~I~Z t <br />ACZ Inborarancs, Inc. Lab Sample iD: L7175-OS <br />30400 AownhiU [hive Client Sample ID: Lwr. Gd. Spg. Creek <br />Steamboat Springs, Co 80487 Client Project 1D: 10680-95s <br />(8001334-5493 ACZ Report ID: RG15951 <br />Colowyo Coal Company Date Sampled: 9/13/95 00:00 <br />5731 State Highway 13 Date Received: 9/15/95 <br />Meeker, CO 81641 Date Reported: /0/5/95 <br />Juan Garcia <br />Sample Matrix: Surface Water <br />Calcium, dissolved <br />Iron, total <br />Lead, total recoverable <br />Magnesium, dissolved . <br />Manganese, total recoverable <br />Mercury, total recoverable <br />Selenium, total recoverable <br />Sodium, dissolved <br />Zinc, total recoverable <br />M206.2 GFAA U mg/L 0.001 0.005 927/95 <br />M200.71CP 141.0 mg/L 0.2 1 9!13/95 <br />M200.71CP 0.85 mg/L 0.01 0.05 10/1/95 <br />M200.71CP U mg/L 0.02 0.1 10/4/95 <br />M200.7 ICP 157.0 mg/L 0.2 I 923/95 <br />M200.71CP 0.174 mg/L 0."v05 0.03 10/4/95 <br />M246.1 CVAA U mg/L 0.0002 0.001 ~. 926!95 <br />SM 3500-Se C, AA-Hydride 0.006 mg/L 0.001 0.005 923/95 <br />M200.71CP 67.0 mg/L 0.3 I 923N5 <br />M200.71CP 0.04 B mg/L 0.01 0.05 10/4/95 <br />sh <br />rd <br />fp <br />rs <br />rd <br />rs <br />jd <br />jd <br />rd <br />rs <br />Total Digestion M3UI5 ICP 927/95 jaw <br />Total Recoverable Digestion M3005 ICP 922/95 jaw <br />Total Recoverable Digestion M3005 GFAA 9/12/95 jaw <br />Wet Chemist <br /> ~~ <br />AlkaliniryazCaC03 M310,1 <br />Bicarbonate as CaC03 424 mg/L 2 10 9/16/95 ss <br />Carbonate az CaC03 U mg/L 2 10 9/16/95 ss <br />HydroxideazCeC03 U mg/L 2 10 9/i6/95 ss <br />Total Alkalinity 424 mg/L 2 10 9/16/95 ss <br />Conductivity rJ SC M120.1 - Meter 1640 umhos/cm I 10 9/16/95 ss <br />Hardness az CaC03 Calculation based on dissolved Mg 8: Ca 998 mg/L I 7 10/5/95 talc <br />Lab Filvation ••• 9/18/95 jaw <br />Lab Filvation & Acidification •'• ~ 9/18/95 jaw <br />Nivatc az N, dissolved M353.2 -Automated 0.96 mg/L 0.02 0.1 9/16/95 ss <br />NitrateMitritc ss N, dissolved M353.2 -Automated Cadmium Reductio 0.96 mg/L 0.02 0.1 9/16/95 ss <br />Nitrite az N, dissolved M353.2 -Automated U mg/L 0.01 0.05 9/16/95 ss <br />Nivogcn, ammonia M350.1 -Automated Phenerc 0.08 B mg/L 0.05 0.3 9/19/95 hm <br />pH (lab) Mt50.I - Electrometric 8.2 units 0.1 0.! 9/16/95 ss <br />Phosphorus, total M365.1-Automared Ascorbic Acid (dige 0.036 mgJL 0.005 0.03 925/95 ss <br />Residue, Filterable (1'DS) Q180C MI60.1 - Grevimetric 1280 mg/L 10 20 9/19/95 jk <br />Residue, Non-Filterable (TSS) Q103-SC M160.2 - Gravimetric 26 mg/L 5 20 9/19/95 sak <br />Sodium Absorption Ratio in Warer USGS -11738-78 0.93 0.03 O.IS 10/5/95 talc <br />Sulfate M375.3 - Gravimetric 613 mg/L 4 8 923/95 jk <br />~ . <br />U = Malyte was analyud for but not detected at the indicated MDL <br />B = Malyte wncentretion detected m a value between MDL and PQL ~~ . / ~ +F+n <br />'PQL =Practical Quan[itation Limit Y <br />Vice President of Operations: Ralph Poulson <br />REPIN00103.95.01 Page 1 of 1 <br />