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Table 1B. Surface Water Analytical Results - <br />East Salt Creek Below McClane (ESC-1), and Above Proposed Red Cliff Mine <br /> <br />• <br />FIELD PARAMETERS UNITS 4Q/04 1 /05 2Q/05 3Q/05 3Q/06 1Q/07 3Q/07 <br />H SU 7.60 7.40 8.20 8.20 8.2 8.50 8.00 <br />Temperature C 6.8 5.3 23.2 16.3 17.7 11.5 16.5 <br />Conductivity UMHO/CM 1,520 1,700 1,800 3,300 5,900 3,100 2,900 <br />Flow CFS 9.0 7.0 4.4 1.1 0.3 6.5 0.01 <br />LAB ANALYSIS <br />H SU 8.27 7.47 8.38 8.04 8.4 7.7 8.54 <br />Conductivity UMHO/CM 1,505 2,078 2,320 3,400 4,545 2,421 2,049 <br />Total Suspended Solids mg/L 2,350 829 57 29 249 593 165 <br />Total Dissolved Solids mg/L 1,140 1,781 1,810 2,892 4,883 2,425 2,238 <br />Total Hardness CaC03) mg/L 411 696 834 273 1,180 948 836 <br />Sodium Absorption Ratio mg/L 4.21 1.17 7.35 7.36 6.90 7.52 7.12 <br />Bicarbonate mg/L 226.8 312.1 493 489 548.8 404.8 243 <br />Calcium mg/L 81.5 101 84 92.2 130.50 136.4 103.6 <br />Carbonate mg/L 0.0 <2 <2 <2 8.99 0.0 18.1 <br />Chloride mg/L 31.6 <0.5 35.4 31.7 <0.5 22.7 1,144.6 <br />Magnesium mgAL 50.4 108 151.6 104.5 207.5 147 140.3 <br />Potassium m /L 6.7 4.23 5.3 5.9 207.4 8.28 7.4 <br />Sodium mg/L 196.4 71 488.0 280.0 544.8 532.6 472.6 <br />Sulfate mg/L 665 992 1,027 1,699.5 2,430.1 1,398.2 1,1618 <br />Aluminum mg/L <0.05 0.034 <0.05 <0.05 0.128 2.030 0.33 <br />Arsenic mg/1L 0.0047 0.102 0.09 0.37 0.136 0.288 0.005 <br />Boron mg/L 1.100 0.023 0.012 0.033 0.830 0.760 0.610 <br />Copper m L <0.01 0.009 0.005 0.027 0.016 0.010 0.020 <br />Iron m /L 0.970 0.91 0.160 0.180 0.180 1.85 0.341 <br />Lead mg/L <0.05 <0.05 <0.05 0.100 0.050 0.008 0.040 <br />Manganese m /L <0.01 0.028 0.141 0.014 0.37 0.240 0.072 <br />Selenium m /L 0.055 0.053 0.464 0.166 1.897 0.429 0.027 <br />Data from DRMS Permit (J.E. Stover & Assoc.) <br />ERO Resources Corp. <br />AVF Determination -Red Cliff Mine <br />Page 8 <br />6/19/2008