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ADZ ~y;.T <br />ACZ laboratories, /nc. Lab Sample [D : L7775-03 <br />J0000 Dowrthrll Drive Client Sample ID : A-6 Well <br />Steamboat springs, Co 8o4e7 Client Project ID : /0680-95s <br />(800/ 334-5493 ACZ Report ID : RG/5949 <br />Colowyo Coal Company Date Sampled : 9//3/95 00: 00 <br />5731 State Highway 13 Date Received : 9//5/95 <br />Meeker, CO 81641 Date Reported : /0/5/95 <br />Juan Garcia <br /> Sample Matrix : Ground Water <br />Metals Analysis <br /> e e <br />Arsenic, total recoverable M206.2 GFAA ~ U mg/L 0.001 0.005 927/95 sh <br />Calcium, dissolved M200.7ICP 58.8 mg/L 0.2 I 923/95 rd <br />Iron, total recoverable M200.71CP 1.82 mgrL 0.01 0.05 10/4/95 rs <br />Lead, total recoverable M200.7 ICP U mg/L 0.02 0.1 10/4/95 rs <br />Magnesium, dissolved M200,7 ICP 53.0 mg/L 0.2 1 923/95 rd <br />Manganese, total recoverable M200.7 ICP 0.039 mg/L 0.005 0.03 10/4/95 rs <br />Mercury, total recoverable M245.1 CVAA U mg/L 0.0002 0.001 926/95 jd <br />Selenium, total recoverable SM 3500-Se C, AA-Hydride U mg/L 0.001 0.005 923/95 jd <br />Sodium, dissolved M200.7 ICP 130.0 mgR- 0.3 I 983/95 rd <br />Zinc, total recoverable M200.7 ICP 0.01 B mg/L 0.01 0.05 10/4/95 rs <br />Metals Pre <br />Total Recoverable Digestion M3005 ICP 922/95 jaw <br />Total Recoverable Digestion M3005 GFAA ~ 922/95 jaw <br />Wet Chemist <br />Alkalinity az CaCO3 M2320B <br />Bicarbonate az CaCO3 524 mg/L 2 10 9/16/95 ss <br />Carbonate az CaCO3 U mgr1.. 2 10 9/16/95 ss <br />Hydroxide az CaCO3 U mg/L 2 10 9/16/95 ss <br />Total Alkalinity 524 mg/L 2 10 9/16/95 ss <br />Conductivity Q25C MI20.1-Meter 1090 umhos/cm 1 10 9/16/95 ss <br />Hardness az CaCO3 Calculation hazed on dissolved Mg & Ce 365 mg/L 1 7 10/5/95 talc <br />Lab Filtration •'• 9/18/95 jaw <br />Lab Filration&Acidificetion ••• 9/18/95 jaw <br />Nitrate az N, dissolved M353.2 -Automated 0.07 B mg/L 0.02 0.1 9/16/95 ss <br />NitrateMitrite az N, dissolved M353.2 -Automated Cadmium Reductio 0.07 B 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 />Nitrogen, ammonia M350.1 -Automated Phenue 1.69 mg/L 0.05 0.3 9/19/95 hm <br />pH (lab) M9040 - Electrometric 7.5 units 0.1 0.1 9/16/95 ss <br />Phosphorus, [oral M365.1-Automated Ascorbic Acid (dige O.D44 mg/L 0.005 0.03 925/95 ss <br />Residue, Filterable (iD5)Q180C M160.1-Gravimctric 650 mg/L 10 20 9/19/95 jk <br />Sodium Absorption Ratio in Water USGS -11738-78 3.00 0.03 0.15 10/5/95 talc <br />Sulfate M375.3-Gravimetric 119 mg/L 4 B 923/95 jk <br />~~ J~• /~.sS'l <br />Vice President of Operations: Ralph Poulson <br />REPIN00103.95.01 Page 1 of 1 <br />