UNITED STATES DEPARTMENT OF THE INTERIOR

Donald Paul Hodel, Secretary


Geological Survey

Dallas L. Peck, Director













For Additional Information
write to:

U.S. Geological Survey
Water Resources Division
Gulf Coast Hydroscience Center
Building 2101
NSTL, Mississippi 39529
 Copies of the report can be purchased from:

Open-File Services Branch
Western Distribution Branch
U.S. Geological Survey
Box 25425, Federal Center
Denver, Colorado 80225

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