More Information about the HCDN

For additional information     Copies of this report   
write to:                      can be purchased from:  
Project Chief, Regional        U.S. Geological Survey 
 Hydrologic Processes Project  Information Services    
U.S. Geological Survey                                  
MS 431 - National Center                              
Reston, Virginia  20192                               
(703) 648-5893                                         



         Information concerning hydrologic data for a particular State
         should be directed to the State Representative for that State.