Table 2. Primary sources of information that may be helpful 

 in making a wetland determination. 



r 



Data Name 



Topographic Maps (mostly 1 :24,000; 



1:63,350 for Alaska) 



National Wetlands Inventory Maps 



(mostly 1:24,000; 1:63,350 



for Alaska) 



County Soil Survey Reports 



National Hydric Soils List 

 State Hydric Soils List 

 County Hydric Soil Map Unit List 

 National Insurance Agency 

 Flood Maps 



Local Wetland Maps 



Land Use and Land Cover Maps 



Aerial Photographs 



Satellite Imagery 



National List of Plant Species 

 That Occur in Wetlands 

 (Stock No. 024-010-00682-0) 



Regional Lists of Plants that 

 Occur in Wetlands 



National Wetland Plant Database 



Stream Gauge Data 



Soil Drainage Guides 

 Environmental Impact Statements 

 and Assessments 

 Published Reports 



Local Expertise 



Site-specific Plans and 

 Engineering Designs 



Source 



U.S. Geological Survey (USGS) 

 (Call 1-800-USA-M APS) 

 U.S. Fish and Wildlife Service 

 (FWS) (Call 1-800-USA-MAPS) 



U.S.D.A. Soil Conservation Sen/ice (SCS) District Offices 



(Unpublished reports-local district offices) 



SCS National Office 



SCS State Offices 



SCS District Offices 



Federal Emergency Management 



Agency 



State and local agencies 



USGS (1-800-USA-MAPS) 



Various sources-USGS, U.S.D.A. Agricultural Stabilization and 

 Consen/ation Service, other Federal and State agencies, and pri- 

 vate sources 



EOSAT Corporation, SPOT Corporation, and others 



Government Printing Office 

 Superintendent of Documents 

 Washington, DC 20402 



National Technical Information Service 

 5285 Port Royal Head 

 Springfield, VA 22161 

 (703) 487-4650 



FWS 



CE District Offices and USGS 



SCS District Offices 



Various Federal and State agencies 



Federal and States agencies, universities, and others 



Universities, consultants, and others 



Private developers 



22 



