Laserfiche WebLink
Contents <br />FIGURES <br />After page <br />1.1 <br />Site location <br />6 <br />1.2 <br />Collom study area plan <br />6 <br />2.1 <br />General stratigraphic column <br />12 <br />2.2 <br />Regionalized geologic features <br />12 <br />3.1 <br />Locations of Colowyo and WRCC meteorological stations <br />16 <br />3.2 <br />Average monthly precipitation in Hamilton, CO <br />16 <br />3.3 <br />Average monthly precipitation in Meeker, CO <br />16 <br />4.1 <br />Regional drainage network <br />42 <br />4.2 <br />Surface water, spring and seep sampling locations <br />42 <br />4.3 <br />Inorganic chemistry of surface water samples <br />42 <br />4.4 <br />Inorganic chemistry of spring and seep samples <br />42 <br />5.1 <br />Cross section locations <br />76 <br />5.2 <br />NE -SW cross section A -A' through Phase 1 <br />76 <br />5.3 <br />NE -SW cross section B -B' through Phase II <br />76 <br />5.4 <br />NW -SE cross section C -C' through box cut <br />76 <br />5.5 <br />Conceptual north -south hydrogeologic cross section <br />76 <br />5.6 <br />Baseline monitoring wells <br />76 <br />5.7 <br />Bedrock piezometers <br />76 <br />5.8 <br />Pit dewatering test layout at C- 04 -16B <br />76 <br />5.9 <br />Summary of Collom hydraulic conductivities (all tests) <br />76 <br />5.10 <br />Water levels and pumping rates - pilot dewatering test <br />76 <br />5.11 <br />Water level contour map: F sandstone wells <br />76 <br />5.12 <br />Water level contour map: F/G sequence wells <br />76 <br />5.13 <br />Water level contour map: H sandstone wells <br />76 <br />5.14 <br />Water level contour map: I sandstone wells <br />76 <br />5.15 <br />Inorganic chemistry of bedrock groundwater - F/G sequence <br />and F Sandstone samples <br />76 <br />5.16 <br />Inorganic chemistry of bedrock groundwater - H Sandstone samples <br />76 <br />5.17 <br />Inorganic chemistry of valley fill groundwater <br />76 <br />5.18 <br />Maximum drawdown response in F/G sequence after 35 days <br />76 <br />6.1 <br />Location of SEEPW model sections <br />84 <br />6.2 <br />Phase 2 highwall model structure <br />84 <br />6.3 <br />Phase 2 highwall - Steady state <br />84 <br />6.4 <br />Phase 2 highwall - 23 months <br />84 <br />6.5 <br />Phase 2 highwall model - 31 months <br />84 <br />6.6 <br />Phase 2 highwall model - 41 months <br />84 <br />6.7 <br />Phase 2 advancing wall model structure <br />84 <br />6.8 <br />Advancing wall model- steady state <br />84 <br />6.9 <br />Advancing wall model - 25 months <br />84 <br />6.10 <br />Advancing wall model - 33 months <br />84 <br />6.11 <br />Advancing wall model - 42 months <br />84 <br />6.12 <br />6.13 <br />Advancing wall model - 49 months <br />Sidewall model structure <br />84 <br />84 <br />6.14 <br />Sidewall model - steady state <br />84 <br />2572 -R2 <br />Colowyo Coal Company <br />Water Management Consultants <br />