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ARCOSA <br /> Table D-2 Summary of Permeability Test Data <br /> Material Permeability, cm/sec <br /> Unweathered <br /> Pierre Shale 10-6 to 10-7 <br /> (Hogan Quarry) <br /> Compacted Shale 8 <br /> Fines @ 90% compaction <br /> 2 x 10- <br /> (Hogan Quarry) <br /> Compacted Clay 2 x 10" <br /> (Spicer Quarry) @ 90% compaction <br /> Source: In-Situ, Inc., Lakewood, Colorado <br />