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 6-1-7
Chemical and Physical Properties of the Lower Interburden Shale (Unit 4)
for Phase I and Phase II Samples Collected from the
Nucla East Study Area, Montrose County, Colorado
Parameter Phase I Hole No.1 Phase II Hole No.1
2
(Units) 870E 871E 872E 881E 882E 886E Mean SO
pH 6.2 5.2 4.4 7.8 7.9 4.2 6.0 1.6
EC, mmhos/cm 4.5 3.7 5.5 -- -- -- 4.6 0.9
SP, % 28.6 34.5 34.0 -- -- -- 32.4 3.3
Sand, % 70.9 64.9 68.2 -- -- -- 68.0 3.0
Silt, % 23.1 27.3 20.3 -- -- -- 23.6 3.5
Clay, % 6.0 7.8 11.5 -- -- -- 8.4 2.8
Ca, meq/1 21 .2 23.2 19.7 12.9 0.3 -- 15.5 9.3
Mg, meq/1 20.1 20.8 26.4 12.7 0.3 -- 16.1 10.1
Na, meq/1 13.8 2.5 19.5 22.7 9.9 -- 13.7 8.0
SAR 3.0 0.5 4.1 6.3 18.0 -- 6.4 6.8
ALK, meq/1 3.2 0.9 < 0.01 -- -- -- <1 .4 1 .6
SO4, meq/1 57.2 50.5 76.9 -- -- -- 61.5 13.7
AP4 18.8 19.7 40.3 25.0 43.1 46.5 32.2 5.7
NP3 6.6 4.0 7.0 16.0 11.3 3.1 8.0 4.8
ABP3 -12.2 -15.7 -33.3 -9.0 -31.8 -43.4 -24.2 13.8
NO3, ppm 1 .6 1.1 1.7 -- -- -- 1 .5 0.3
NH4, ppm 94.3 42.2 58.2 36.1 45.2 28.5 50.7 23.5
B, ppm 0.6 0.4 0.4 -- -- -- 0.5 0.1
Se, ppm 0.3 <0.02 0.03 -- -- -- <0.03 0.01
Mo, ppm 0.10 0.21 0.29 -- -- -- 0.20 0.09
Fe, ppm 38.0 49.5 121.0 -- -- -- 69.5 45.0
Mn, ppm 1.5 4.8 3.0 -- -- -- 3.1 1.6
1 For drill hole location, see Exhibit 6-7, Geologic Cross Section and Sample Locations
3 SO - standard deviation.
AP - acid potential , NP - neutralization potential , ABP - acid-base potential ; Units are
tons of CaCO required per acre furrow slice; AP and ABP were calculated from pyritic
sulfur fractionation values.
6-1-34 Revised 04/11/88