1988-04-11_PERMIT FILE - C1981008A ‎(5)‎

• Permit No: C1981008A
• IBM Index Class Name: PERMIT FILE
• Doc Date: 4/11/1988
• Doc Name: Nucla East Geology and Overburden Assessment
• Section_Exhibit Name: Tab 6 Attachment 6-1
• Media Type: D
• Archive: Yes

Table 6-1-9
Additional Chemical Parameters Required by CMLRD
for Phase I Drill Hole 870E,
Nucla East Study Area, Montrose County, Colorado
1
Parameter Lithologic Unit
2
(Units) 1 2 3 4 6 Mean
Copper, ppm 0.5 0.4 0.3 1 .1 0.8 0.5
Lead, ppm 0.5 1.2 1.6 2.0 1.4 0.7
Arsenic, ppm < 0.05 < 0.05 <0.05 <0.05 <0.05 < 0.05
Zinc, ppm 0.5 1.2 0.8 0.8 1.3 0.6
Nickel, ppm 0.3 0.4 0.1 1.2 0.2 0.3
Cadmium, ppm <0.02 < 0.01 < 0.01 <0.01 < 0.02 < 0.02
Mercury, ppm 0.03 < 0.02 0.01 0.04 0.01 < 0.03
1Lithologic units are identified in Appendix 6-1 and discussed earlier in the Overburden,
Interburden, and Underburden Characteristics section.
2Weighted mean value only includes Lithologic Units 1, 2, 3, and 4 which will all be
disturbed by mining. Mean thickness of Lithologic Units 1, 2, 3, 4, and 6 is 55.9, 6.5,
7.1, 2.7, and 9.7 feet, respectively.
6-1-37 Revised 04/11/88