PERMFILE53673

• Permit No: C1996084
• IBM Index Class Name: Permit File
• Doc Date: 12/1/1996
• Section_Exhibit Name: Exhibit 06 Geology Technical Report
• Media Type: D
• Archive: No

• Table G-3: Statistical Summary of Overburden Geochemistry, Lorencito
Parameter Units
MIN MAX AVG TD.DEV.
Depth NA NA NA NA
Lithologic Classification NA NA NA NA
Texture, Hydrometer NA NA NA NA
Clay % 0 31 10 7
Sand % 46 90 70 10
Silt % 10 40 21 6
Texture Classification
Organic Matter % 0.6 53.7 8.8 11.9
Conductivity mmhos/cm 0.459 4.980 0.954 0.691
pH units 6.3 9.5 8.6 0.7
Calcium meq/L 0.05 22.20 1.63 3.66
Magnesium meq/L 0.03 17.70 1.79 3.65
Sodium meq/L 1.22 4.2D 6.77 6.37
Sodium Adsorption Ratio 0.03 44.50 13.67 12.55
Exchangeable Sodium Percent % 0.5 88.7 36.2 32.0
Cation Exchange Capacity meq/100g 1.94 11.90 6.56 3.32
Saturation Percent % 22.8 79.2 35.37 10.19
Arsenic mglKg 0.05 0.30 0.06 0.04
Boron mglKg 0.05 0.30 0.08 0.05
Cadmium mglKg <0.2 <0.2 <0.2 0.0
Copper mglKg 0.5 10.6 2.4 2.3
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Iron mglKg 7.6 46.1 26.5 10.7
Lead mg1Kg 1 6 3 1
Manganese mg/Kg 0.3 4.5 1.1 1.0
Mercury mg1Kg 0.002 0.050 0.006 0.007
Molybdenum mg/Kg 0.5 3.0 0.5 0.3
Selenium mg/Kg 0.005 0.238 0.063 0.055
Zinc mg/Kg 0.5 12.0 2.1 2.1
Nitrate-Nitrite as N mg/Kg 0.5 8.9 0.9 1.2
Sulfur Forms
Organic % 0.01 0.62 0.11 0.15
Pyritic % 0.01 1.26 0.17 0.29
Sulfate % 0.01 0.32 0.03 0.07
Total % 0.01 1.55 0.19 0.35
Acid Generation Potential tons/KT 0 43 6 12
Acid Neutralization Potential tons/KT 14 251 66 67
Acid-Base Potential tons/KT -26 250 60 70
1 When the results are blank, then put in MDL value
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