PERMFILE69629

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 2/28/2006
• Section_Exhibit Name: Tab 06 Geology and Overburden Assessment
• Media Type: D
• Archive: No

• • i
TABLE 8
Statistical Summary of the Physiochemical Characteristics
of [he Overburden, Yoast Permit Area
Core Holes 2 Arithmetic Xinimum Maximum Standard No. of
Sam L 1p ed Parameter _ ___,___Average jHole No_L___ jHOle No. L___ Deviation _ Holes
2309E px, Paste 7.6 7.2 (2318E) 8.0 (2313E) 0.2 74
2310E Saturation Percent, X 46.5 31.6- '(30518) 59.3 (2309E) 8.5 14
2311E Conductivity, mmho/cm 1.6 0.7 (2318E) 4.3 (2310Ei 1.0 14
2312E Sodium, meq/l 4.3 1.0 (2314E) 17.4 (2310E) 4.6 1p
2313E Calcium, meq/l 8.4 3.6 (2318E) 16.2 (2317E) 4.6 1p
2314E Magnesium, meq/l 12.6 2.5 (2318E) 35.6 (2317E) 10.5 7p
2315E Nitrate-Nitrogen, ppm 2.4 1.6 (30508) 3.7 (30488) 0.8 4
2316E Boron, ppm 0.8 0.2 (2314E) 1.6 (2310E) 0.4 1p
2317E Sodium Adsorption Ratio 1.5 0.6 (2314E) 4.2 (2310E) 1.1 )p
2318E Total Sulfur, X 0.29 0.02 (2311E) 0.67 (2310E) 0.20 14
30488 /1000T
Neutralization Potential, TCeCO 70.1 13.5 (2311E) 116.5 (30518) 21.9 14
33
30498 Acid-Base Potential, TCaCO /t000T
3 61.1 13.0 (2311E) 111.3 (30518) 21.4 14
30508 Very Fine Sand, X 15.6 8.5 (2310E) 23.1 (2311E) 4.6 10 M
30518 Sand, X 36.3 25.0 (2310E) 50.8 (2314E> 7.8 1p
Silt, X 37.0 28.7 (2316E) 48.5 (2312E) 6.1 7p
Clay, X 26.7 14.3 (2314E) 42.4 (2310E) 8.7 10
Copper, ppm 1.9 1.3 (2314E) 2.8 (2312E) 0.4 1p
Selenium, ppm (3) 10
Nickel, ppm 2.2 1.5 (2314E) 3.0 (2311E) 0.4 10
Molybdenum, ppm (3) 10
Cadmium, ppm 0.10 0.05 (2315E) 0.20 (2309E) 0.05 10
Iron, ppm 59.8 17.5 (30518) 133.6 (2313E) 32.2 [4
Manganese, ppm 22.4 6.1 (30518) 90.6 (2311E) 21.2 14
Lead, ppm 1.8 1.2 (2314E) 2.4 (2309E) 0.3 10
Zinc, ppm 19.5 7.2 (2310E) 46.8 (2311E) 10.7 10
Phosphorus, ppm 3.4 0.9 (2314E) 7.7 (2311E) 2.2 10
____Gotessium,_eem ___ ____ _112 3___ ____69_0 _~2312EL___ __ 191.3 _52310EZ____~ ______36_6~___ _____10__
1FOr drill hole location, see Exhibit 6-4. The "Y/" prefix was omitted from the Sample Site ID in this table.
2The following abbreviations are used: X = percent, mmho/cm = millimh os per centimeter, meq/l = mi lliequivalents per liter, ppm = parts per million,
3TCaC03/1000T = tons calcium carbonate equivalent per 1000 tons of overburden materiel
The mean values were less than the detection limit of 0.01 for selenium end 0.6 for molybdenum.