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ACZ <br /> <br />ACZ labomrorier, Inc. <br />30400 Qownhi0 Dnivc <br />Steanbaat Springs, CO 80487 <br />(800) 334-5493 <br />Lab Sample ID: <br />Client Sample 1D: <br />Client Project ID: <br />ACZ Report ID: <br />L5805-02 <br />North Good Sprg We(( <br />10437-95a <br />RG10415 <br />Colowyo Coal Company Date Sampled: 5/23/95 <br />5731 State Highway 13 Date Received: 5/25/95 <br />Meeker, CO 81641 Date Reported: 6/29/95 <br />Juan Garcia <br /> Sample Matrix: Ground Water <br />Metals Anal sis <br />Arsenic, total rcwvemble M206.2 GFAA 0.002 B mg/L 0.001 0.005 6/14/95 sh <br />Calcium, dissolved M200.71CP 172.0 mg/L 0.2 1 6/28/95 fp <br />Iron, total rewverable M200.7 ICP 0.80 mgR. 0.01 0.05 626/95 fp <br />Lead, total rcwvemble M200.7 ICP U mg/L 0.02 0.1 626/95 fp <br />Magnesium, dissolved M200.7 ICP 174.0 mgR. 0.2 I 6/28/95 fp <br />Manganese, total recoverable M200.71CP 1.300 mg/L 0.005 0.03 626/95 fp <br />Mercury, torol recoverable M245.1 CVAA U mg/L 0.0002 0.001 6/9/95 rd <br />Selenium, total rcwvemble SM 3500-Se C, AA-Hydrido U mg/L 0.001 0.005 620/95 rs <br />Sodium, dissolved M200.71CP 88.4 mg/L 0.3 1 628/95 fp <br />Zinc, total rcwvemble M200.7 ICP 0.02 B mg/L 0.01 0.05 626/95 tp <br />Metals Pre <br />Total Rewveroble Digestion M3005 ICP 6/6/95 jaw <br />Tool Rewverable Digestion M3005 GFAA 6/6/95 jaw <br />Wet Chemist <br />Alkalinity as CaC03 M2320B <br />Bicarbonate as CeC03 457 mg/L 2 10 5/31/95 jw <br />Carbonate as CeC03 U mg/L 2 10 5/31/95 jw <br />Hydroxide as CeC03 U mg1L 2 10 5/31/95 jw <br />Total Alkalinity 457 mg/I, 2 10 5/31/95 jw <br />Conductivity Q25C MI20.1 -Meter 2050 umhos/cm 1 10 5/30/95 jk <br />Hardness as CaC03 Calculation baud on dissolved Mg & Ca 1150 mgt 1 7 6/29/95 ~ talc <br />Lab Filtration •'• 527/95 be <br />lab Filtration & Acidification ~ ••• 527/95 be <br />Nitrate as N, dissolved M353.2 -Automated 0.06 B mg/L 0.02 0.1 526/95 rvp <br />NitrazeMitrite as N, dissolved M353.2 - Automaed Cadmium Reductio 0.09 B mg/L 0.02 0.1 526/95 rvp <br />Nitrite as N, dissolved M353.2 -Automated 0.03 B mg/L 0.01 0.05 526/95 rvp <br />Nitrogen, ammonia M350.1 -Automated Phenare 0.21 B mgJL 0.05 0.3 6/13/95 hm <br />pH (lab) M9040 - Electrometric 7.3 units 0.1 O.l 526/95 be <br />Phosphorus, total M365.1-Automated Aswrbic Acid (dige 0.045 mglL 0.005 0.03 6/13/95 hm <br />Residue, Filterable ('fDS) Q180C M160.1 -Gravimetric 1620 mg/L 10 20 526/95 be <br />Sodium Absorption Ratio in Water USGS -11738-78 I.IS 0.03 0.15 629/96 talc <br />Sulfate M375.3-Gravimetric 810 mg/L IO 20 62/96 jk <br />U = Analyze wat analyrsd for but not detected <br />B = Analyze wneentrntion detected et a value between MDL and PQL <br />PQL =Practical Quantization L'unit <br />REPIN00[03.95.01 Page 1 of t <br />Vice President of Operetions: Ralph Poulson <br /> <br />