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 6-4
Weight Average Physiochemical Characteristics
of the Overburden 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 508-C 555-C 569-C 609-C
pH, Paster 7.2 6.6 5.2 7.1 7.4 6.4 7.4 7.5 7.1 7.8 7.0 6.1 7.4 5.1 7.4
Saturation Percent, % 43.3 48.1 46.6 45.9 49.7 48.6 61.8 55.9 50.6 44.8 45.8 48.7 42.5 50.4 47.3
Conductivity, mmho/cm 0.8 3.6 2.5 2.6 1.3 2.5 3.8 1.4 1.8 1.0 2.3 2.2 1.2 1.8 1.2
pH, Paste Extract' 7.7 7.1 5.5 7.7
Sodium, meq/1 0.9 4.6 3.7 3.7 2.2 4.3 7.2 3.2 2.3 5.2 4.7 3.7 2.2 2.5 2.1
Calcium, megll 4.6 17.1 14.5 14.7 6.6 14.1 19.4 5.5 10.0 2.4 10.4 11.5 6.3 8.2 6.3
Magnesium, meq/1 4.1 35.7 15.9 22.0 6.7 15.8 26.8 7.8 10.5 3.8 17.2 14.4 6.6 12.3 7.5
Sulfate, megllt 8.0 56.0 34.0 40.0
Nitrate-Nitrogen, ppm 13.8 73.2 9.4 28.4
Fluoride, ppm 3.0 1 .8 1.9 1.7
Boron, ppm 0.3 0.5 0.8 0.7 0.7 1.3 1.3 0.7 0.5 1.0 2.0 1.0 1.4 0.5
Sodium Adsorption Ratio 0.6 1.0 0.9 1.0 1.0 1.1 1.4 1.4 0.8 3.0 1.3 1.0 1.1 1.0 1.1
Pyritic Sulfur, %~ 0.11 0.31 0.14 0.26
Sulfate Sulfur, %~ 0.02 0.19 0.11 0.09
Organic Sulfur, %~ 0.03 0.02 0.03 0.03
Total Sulfur, %' 0.16 0.52 0.28 0.38 0.19 0.24 0.45 0.12 0.15 0.05 0.19 0.24 0.15 0.18 0.15
Acid-Base Potential,
TCaCO~/10007 96.32 69.24 73.50 60.60 69.11 36.87 29.74 45.47 69.11 66.25 60.90 42.40 57.45 50.43 52.89
Total Combustible Solids, %" 17.9 11.7 11.5 12.6
Very Fine Sand % 18.0 17.0 9.0 11.0 17.0 9.0 14.0 15.0 21.0 16.0 20.0
Sand, % 39.0 25.0 33.0 32.0 29.0 25.0 13.0 18.0 23.0 19.0 25.0 22.0 29.0 28.0 25.0
Silt, % 39.0 34.0 39.0 35.0 46.0 47.0 36.0 44.0 55.0 55.0 51.0 47.0 51.0 48.0 54.0
Clay, % 22.0 41.0 28.0 33.0 25.0 28.0 51.0 38.0 22.0 26.0 24.0 31.0 20.0 24.0 21.0
Arsenic, ppm 0.12 0.17 0.13 0.18
Selenium, ppm 0.04 0.02 0.03 0.02
Mercury, ppb 17.55 25.64 20.64 20.44
Molybdenum, ppm' 0.5 0.3 0.5 0.3 0.5 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Aluminum, ppm' 0.5 0.9 2.6 0.6
Cadmium, ppm 0.21 0.04 0.08 0.04
Iron. ppm 128.1 102.3 141.8 121.0
Manganese, ppm 59.2 16.1 22.0 14.3
Lead, ppm 7.6 2.0 1.7 1.7
Zinc, PPm 12.4 4.7 11.2 9.3
' The following abbreviations are used: % = percent; mmholcm = millimhos per centimeter; meq/1 = milliequivalents per liter; ppm = parts per
million; TCaCO~/1000 7 =tons calcium carbonate equivalent Der 1000 tons of overburden material; ppb -parts per billion.
t Weighted averaged pH is determined from hydrogen ion activities prior to negative logarithm conversion.
~ Values were adjusted for less than values according to Hilton (19841, and therefore may vary Irom the values presented in Appendix 6-4.
• Represents carbonaceous strata and coal only.
27 Revised 9/98