|
JD-8 Mine Report
<br />Geoscience Services
<br />Even using such conservative assumptions, results of the modeling simulations
<br />showed that no contamination reached the underlying groundwater system. For all of the
<br />analytes tested, none will migrate through the Salt Wash Member of the Morrison
<br />Formation. The Summerville Formation provides an additional barrier preventing the
<br />constituents of concern from impacting the groundwater in the underlying Entrada
<br />Sandstone.
<br />In summary, mining operations at the JD-8 mine poses no significant threat to
<br />groundwater resources in the area.
<br />References
<br />ACRi, 2000, PORFLOW UsersMamual, Version 4.Q, Rev. 4, Bel Air, California.
<br />Blumb, A. C, C. L. Murphy, and L. G. Everett, 1992, "A Comparison of Three Functional Forms
<br />for Representing Soil Moisture Characteristics," Ground Water, Vol. 30, No, 2, pp. 175-
<br />185.
<br />Cater, Fred W., 1954. Geologic Map of the Bull Canyon Quadrangle, Colorado. U. S.
<br />Geological Survey Map, Washington D.C.
<br />Freeze, R.A., and J.A. Cherry, 1979. Groundwater. Prentice Hall, Inc. New Jersey.
<br />Lohman, S.W, 1965. Geology and Artesian Water Supply Grand Junction Area Colorado.
<br />Geological Survey Proffesional Paper 451, Washington, D.C.
<br />Sheppard, M. L, and D. H. Thibault, 1990, Default Soil Solid/Liquid Partition Coe~ciettis, ICds,
<br />for Four Major SoU Types: A Compendium. Health Physics, Vol. 59, pp, 471-482.
<br />Van Genuchten, R., 1478, Calculating the Unsaturated Hydraulic Conductivity with a New
<br />Closed-Form Analytical Model, Princeton University, Rpt, 78-WR-08, Deparhnent of Civil
<br />Engineering, Princeton, New Jersey.
<br />13
<br />
|