2001-12-11_PERMIT FILE - C1980005 ‎(4)‎

• Permit No: C1980005
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: TAB 06 GEOLOGY
• Media Type: D
• Archive: No

Table 6-4. Statistical Comparison of Chemical Properties
for All Overburden Material for Seneca II Mine, •
Hayden, Colorado, October 1980.

Parameter) Range
Minimum Maximum Arithmei:ic
Mean Standard
Deviation
Frequency
Sand Fraction, % 4.0 75.0 36.8 10.1 77
Silt Fraction, % 18.0 68.0 45.3 9.6 77
Clay Fraction, % 7.0 56.0 17.9 10.3 77
Saturation Point, % 27.8 62.5 43.6 6.9 77
pH (units) 3.6 8.4 7.2 1.0 77
Conductivity, mmhos/cm 0.1 4.3 1.3 1.1 77
Sodium, meq/1 0.3 7.5 2.5 1.2 77
Calcium, meq/1 0.5 32.5 9.3 9.5 77
Magnesium, meq/1 0.4 41.0 7.4 8.4 77
Sodium Adsorption Ratio 0.1 7.0 1.4 1.2 77
Acid-Base Potential2 -69.6 241.3 33.3 54.6 77
Molybdenum, ppm
B <1.0
<0
1 1.7
1
1 <1.0
<0
4 0.2
0
3 77
77S
oron, ppm . . . .
Selenium, ppm <0.1 <0.1 <0.1 0.0 77
Mercury, ppb <10.0 34.0 <12.4 6.5 30"
Cadmium, ppm <0.05 0.5 <0.1 0.1 495
Copper, ppm 0.4 4.6 2.1 1.0 77
Iron, ppm 13.7 468.9 81.4 87.8 495
Lead, ppm <1.0 8.2 <2.2 1.8 495
Manganese, ppm 1.2 48.7 11.3 9.7 495
Nickel, ppm <0.3 9.8 <2.3 2.0 77
Zinc, ppm <1.0 36.4 <9.0 7.8 77
Total Nitrogen, ppm <2.0 8.0 <3.4 1.4 30"
Potassium, ppm 4.5 438.5 110.8 69.6 77
Phosphorus, ppm 0.4 25.8 4.4 4.9 77
'The following abbreviations are used: ppm - parts per million; ppb - parts per
billion.
ZUnits are tons CaC03 equivalent per 1,000 tons of material. •
3Not determined for Core 2131
"Not determined for 1979 and 1980 cores
SNot determined for 1979 cores
6-20