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ACZ Laboratories, Inc. <br />Bowie Resources, LLC <br />Project ID: MINE FLOW 2009 <br />Sample ID: SAMPLE #4 <br />ACZ Sample ID: L76858-03 <br />Date Sampled: 07107109 11:00 <br />Date Received: 07110109 <br />Sample Matrix: Surface Water <br />Wet Chemistry <br />Parameter Method <br />EPA Result w e Units MDL e <br />Alkalinity as CaC03 SM2320B - Titration <br />Bicarbonate as 2540 mg/L 2 20 07/16/09 0:00 jif <br />CaC03 <br />Carbonate as CaC03 88 mg/L 2 20 07/16/09 0:00 jif <br />Hydroxide as CaC03 U mg/L 2 20 07/16/09 0:00 jif <br />Total Alkalinity 2630 mg/L 2 20 07/16/09 0:00 jif <br />Chloride SM45000I-E 370 mg/L 10 50 07/20/0914:16 aml <br />Conductivity @25C SM2510B 5040 umhos/cm 1 10 07/14/09 23:34 abm <br />Hardness as CaC03 SM2340B - Calculation 42 mg/L 1 7 07/23/09 11:37 talc <br />(total recov.) <br />Lab Filtration SM 3030 B 07/10/09 15:34 j c <br />Nitrate as N, dissolved Calculation: N03NO2 minus N02 U mg/L 0.02 0.1 07/23/09 11:37 talc <br />Nitrate/Nitrite as N, M353.2 - Automated Cadmium UH mg/L 0.02 0.1 07/10/09 22:59 pjb <br />dissolved Reduction <br />Nitrite as N, dissolved M353.2 - Automated Cadmium UH mg/L 0.01 0.05 07/10/09 22:59 pjb <br />• Reduction <br />pH (lab) SM4500H+ B <br />pH 8.6 H units 0.1 0.1 07/14/09 0:00 abm <br />pH measured at 23.0 C 0.1 0.1 07/14/09 0:00 abm <br />Phosphate Calculation based on Ortho 0.15 mg/L 0.03 0.15 07/23/09 11:37 talc <br /> Phosphorus <br />Phosphorus, ortho M365.1 - Automated Ascorbic 0.05 BH mg/L 0.01 0.05 07/10/09 19:17 pjb <br />dissolved Acid <br />Residue, Filterable SM2540C 3310 mg/L 10 20 07/10/09 18:20 j c <br />(TDS) @180C <br />Residue, Non- SM2540D 5 B * mg/L 5 20 07/10/09 21:31 he <br />Filterable (TSS) <br />@105C <br />Sodium Absorption USGS - 11738-78 95.00 0.03 0.15 07/23/09 11:37 talc <br />Ratio in Water <br />Sulfate 375.4 - Turbidimetric U * mg/L 1 5 07/17/09 14:12 aml <br />• <br />REPIN.02.06.05.01 • Please refer to Qualifier Reports for details. <br />Page 8 of 28