Hawkins River

Figure 7. Sketch showing sapling locations at tfie confluence of Logsdon River and Hawkins River, M nmodi Cave, Kentucky. The PVC pipe is a test well used for hydrologic measurements.

Figure 8. Particle size distribution in Hawkins and Logsdon Rivers. Logsdon River diamonds = site 1 asterisks = site 5 open circles = site 4. Hawkins River solid square = site 2 triangles = site 3.

The ultimate source of Hawkins River is not known because the main river sumps a short distance upstream from the confluence. The Hawkins River sediments are more uniformly distributed over the range of silt to gravel with less than 10% of the material smaller than the smallest sieve size used. 

The contrast between the two tributaries could be a matter of provenance, a contrast between sediment derived from the Plateau compared to sediment derived from the Sinkhole Plain, it would also be a matter of transport with Hawkins River being the higher energy stream. 

Motyka, R.J., Hawkins, D.B., Poreda, R.J. and Jeffries, A. (1986) Geochemistry, Isotopic Composition, and the Origin of Fluids Emanating from Mud Volcanoes in the Copper River Basin, Alaska, Alaska Division of Geological and Geophysical Surveys, Public-data File 86-34, p. 87. 

Damon Biotech, Dr, Robert Judge, Charles River Biotechnical Services, and Dr. Bruce F. Mackler, ABC General Counsel, who subsequently met with Dr. Bert W. Hawkins, APHIS Administrator and staff to discuss the problem. APHIS in response to the industry instituted significant change decreasing the administrative paperwork so as to condense the time frame to 60-90 days and reduce animal safety testing costs of 2,000 to 3,000. Copies of the APHIS, Veterinary Service Notice are available from ABC, Suite 615, 1220 L Street, N.W., Washington, D.C. 20005. 

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