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PERMFILE109617
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PERMFILE109617
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Last modified
8/24/2016 10:06:40 PM
Creation date
11/24/2007 6:35:41 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1984062
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
EXHIBIT 2 GEOPHYSICAL SOIL MOISTURE MEASUREMENTS (Set 2)
Media Type
D
Archive
No
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• EXHIBIT 2 - Continued <br />to the Middle Creek Underground Mine portal area; 5) Fish 111, on the <br />east bank of Fish Creek upstream from Energy Tipple No. 3; 6) Fish 112, <br />on the east bank of Fish Creek downstream from Energy Tipple No. 3; and <br />7) Fish 113, on the east bank of Fish Creek near USDA-SEA Gaging Station <br />1003. <br />The lithologic logs of the auger holes are presented in this Exhi- <br />bit in Figure 1, Neutron Probe Access Tube Lithologic Logs. As shown, <br />the lithology of the alluvium in the intermittent and perennial streams <br />is predominately clay, underlaid by layers of sand and lenses of gravel <br />at the bottom of the channel fill. The alluvium of Foidel, Middle and <br />Fish Creek contains all three lithologies in a graded sequence of clay <br />at the top to gravel at the bottom. The logs from neutron probe access <br />tubes and alluvial monitor wells was used to construct Map 17, Energy <br />Mine No. 3 Stream Channel Cross Sections. The lithology and layering <br />the alluvial deposits, as well as the underlying shale bedrock, is <br />graphically depicted on this map. <br />The soil moisture data from each neutron probe access tube are <br />listed in this Exhibit in Table 1, Geophysical Soil Moisture Data. <br />Readings were taken with a nuclear gauge at six-inch intervals, and are <br />presented in three units of measurement: 1) PCF, pounds water per cubic <br />foot soil; 2) g/cc, grams water per cubic centimeter soil; and 3) Y, <br />vol., percent volume water by weight. The nuclear gauge was standar- <br />dized at each location before the readings were taken. <br />Soil moisture conditions, and the extent of the capillary fringe in <br />particular, depend on the lithology and characteristics of the alluvium <br />containing the water table. Clay materials are capable of high moisture <br />retention, while an aggregate has almost no retention capability, be- <br />cause of the difference in porosity of the two materials. Thus, the <br />• capillary fringe in alluvium consisting of clay will extend farther <br />
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