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 6-7
Statistical Summary of the Physiochemical Characteristics
of the Underburden, Seneca II-W Mine
Core Arithmetic Minimum Maximum Standard No. of
Holes Parameter ' Average (Hole No.l (Hole No.l Deviation Holes
1127-E pH, Pastet 3.7 2.5 1609-CI 7.6 (1127-EI 3.0 15
1128-E Saturation Percent, % 45.1 40.3 1609-CI 57.1 130-CI 4.2 15
1129-E Conductivity, mmholcm 2.4 1.1 (43-CI 6.8 (609-CI 1.5 15
1130-E pH, Paste Eztractt 5.1 4.5 (1129-EI 7.9 (1127-EI 4.8 4
30-C Sodium, meq/1 2.2 1.0 11127-EI 3.4 (1128-EI 0.6 15
42-C Calcium, meq/1 13.9 4.9 143-CI 28.3 1609-CI 8.0 15
43-C Magnesium, meq/1 12.9 6.411130-EI 26.6 1508-CI 6.4 15
99-C Sulfa[e, meq/1. 12 5 11128-EI 16 11127-E, 1129-EI 5 4
125-C Nitrate-Nitrogen, oom 38.9 1.5 11130-EI 78.0 (1128-EI 31.8 4
300-C Fluoride, ppm 1.0 0.8 11127-EI 1.3 (1130-EI 0.2 4
311-C Boron, ppm 1.6 0.3 11127-EI 7.0143-CI 1.8 13
508-C Sodium Adsorption Ratio 0.7 0.3 (508-C) 1.5 (1128-EI 0.3 15
555-C Pyri[ic Sulfur, % 0.24 0.20 11128-EI 0.27 (1130-EI 0.03 4
569-C Sulfate Sulfur, % 0.03 0.02 (1128-E, 1129-EI 0.05 (1130-EI 0.01 4
609-C Organic Sulfur, % 0.05 0.01 11128-EI 0.13 (1130-EI 0.06 4
Total Sulfur, % 0.35 0.17 (125-CI 0.79 (609-CI 0.17 15
Acid-Base Potential,TCaCO~11000T 40.01 23.36 130-CI 80.79 (1129-EI 20.94 15
Total Combustible Solids, % 18.3 9.8 (1129-EI 22.00 (1130-EI 5.7 4
Very Fine Sand, % 22 11 (30-C, 555-CI 43 (609-CI 11 11
Sand, % 34 20 199-CI 54 (609-CI 10 15
Silt, % 44 31 (1130-EI 58199-CI 7 15
Clay, % 22 101609-CI 40130-CI 7 15
Arsenic, ppm 0.27 0.17 (1129-EI 0.38 11128-EI 0.10 4
Selenium, ppm 0.04 0.02 (1129-EI 0.05 (1130-EI 0.01 4
Mercury, ppb 13.17 10.38 (1127-EI 16.67 (1129-EI 2.71 4
Molybdenum, ppm 0.3 0.3 (All Holesl 0.3 (All Holesl 0.0 4
Aluminum, ppm 0.6 0.5 11127-EI 0.7 11130-EI 0.1 4
Cadmium, ppm 0.05 0.04 11128-E, 1130-EI 0.07 11129-EI 0.02 4
Iron, ppm 88.4 72.9 11127-EI 109.5 11129-EI 16.3 4
Manganese, ppm 10.7 3.9 11130-EI 22.5 11129-EI 8.2 4
Lead, ppm 2.3 1.6 (1129-EI 3.411130-EI 0.8 4
Zinc, ppm 5.5 3.8 (1128-EI 6.6 (1129-EI 1.2 4
The ioiiowing abbreviaiions nre used: % = pbrceui; unuirui wr = uriilimhos per ceniboeier; nidq/1 i„iilievuivalanio P=• 6.er; pp ~ - pares pa.
million: TCaCOt/1000T =tons calcium carbonate equivalent per 1000 tons of underburden material; ppb =parts per billion.
' Weighted average pH is determined from hydrogen ion activities prior to negative logarithm conversion.
• ~ Revised 9/9•