PERMFILE112522

• Permit No: C1982057A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: TAB 6 GEOLOGY AND OVERBURDEN ASSESSMENT
• Media Type: D
• Archive: Yes

TABLE 6-5
Weighted Average Physiochemical Characteristics
of the Underburden Core Material, Seneca II-W Mine
Parameter' 1127- 1128- 1129- 1130- 30-C 42-C 43-C 99-C 125-C 300-C 311-C 506-C 555-C 569-C 609-C
pH, Paste' 7.6 7.5 5.5 7.1 6.9 7.2 7.0 7.1 7.3 7.1 7.0 7.1 6.9 7.3 2.5
Saturation Percent, % 41.4 41.0 41.7 43.8 57.1 48.5 45.1 44.6 44.3 44.4 46.9 42.3 46.7 48.5 40.3
Conductivity, mmho/cm 1.3 1.5 1.6 1.5 3.8 2.3 1.1 1.7 1.5 2.4 1.9 3.4 2.9 1.6 6.8
pH, Paste Extract 7.9 7.9 4.5 7.8
Sodium, meq/1 1.0 3.4 1.6 2.5 2.6 2.0 1.8 2.3 1.9 2.7 2.3 1.7 3.1 2.0 2.3
Calcium, megll 8.9 9.0 11.8 8.9 28.2 15.6 4.9 6.9 9.2 14.0 9.9 27.4 18.1 7.9 28.3
Magnesium, meq/1 8.8 6.6 7.1 6.4 24.6 11.6 8.8 11.9 7.8 15.0 12.4 26.6 19.0 9.5 16.9
Sulfate, meq/1'~' 16 5 16 9
Nitrate-Nitrogen, ppm 30.5 78.0 45.4 1.5
Fluoride, PPm 0.8 1.1 0.9 1.3
Boron, ppm 0.3 0.6 0.5 1.0 1.1 1.0 7.0 0.8 0.5 1.6 1.8 1.9 2.6
Sodium Adsorption Ratio 0.4 1.5 0.6 1.0 0.5 0.5 0.7 0.8 0.9 0.7 0.7 0.3 0.7 0.7 0.5
Pyritic Sulfur, %' 0.24 0.20 0.26 0.27
Sulfate Sulfur, %~ 0.03 0.02 0.02 0.05
Organic Sulfur, %~ 0.02 0.01 0.03 0.13
Total Sulfur, %~ 0.29 0.23 0.31 0.45 0.49 0.36 0.24 0.20 0.17 0.22 0.24 0.56 0.47 0.21 0.79
Acid-Base Potential,
TCaCO~/10007 77.32 64.64 80.79 29.38 23.36 28.78 31.54 31.34 67.73 34.25 27.02 23.46 24.14 32.51 23.84
Total Combustible Solids, %' 19.8 21.4 9.8 22.0
Very Fine Sand, % 11 26 12 16 37 28 13 22 11 24 43
Sand, % 40 41 27 47 21 36 28 20 45 27 27 35 22 37 54
Silt, % 40 43 53 31 39 40 45 58 42 47 50 44 47 45 36
Clay, % 20 16 20 22 40 24 27 22 13 26 23 21 31 18 10
Arsenic, ppm 0.20 0.38 0.17 0.34
Selenium, ppm 0.03 0.04 0.02 0.05
Mercury, ppb 10.38 11.36 16.67 13.75
Molybdenum, ppmt 0.3 0.3 0.3 0.3
Aluminum, ppm 0.5 0.6 0.6 0.7
Cadmium, ppm 0.06 0.04 0.07 0.04
Iron, ppm 72.9 78.7 109.5 92.6
Manganese, ppmt 10.0 6.5 22.5 3.9
Lead, ppm 1.7 2.5 1.6 3.4
Zinc, ppm 5.7 3.8 6.6 5.9
' The following abbreviations are used: %= percent; mmho/cm = m illimhos per centimeter; meq/ I = milliequivalents per liter; ppm =parts per
million; TCaCO~/10 00 7 -tons calcium carbonate equivalen t per 100 0 tons of underburd en materi al; ppb -parts per billion.
= Weighted average pH is dete rmined fr om hydrog en ion act ivities pri or to nega tive logar ithm conv ersion.
~ Values were adjusted for less than va lues according to Hil ton (19841. and therefore may vary from the val ues presented in Ap pendix 6-4.
Represents carbo naceous str ata and c oal only.
29 Revised 9/98