Watershed Assessment, Tracking & Environmental ResultS

• EnviroMapper for Water
  EnviroMapper for Water is a web-based Geographic Information System (GIS) application that dynamically displays information about bodies of water in the United States. This interactive tool allows you to create customized maps that portray the nation's surface waters along with a collection of environmental data. Find out about the health of a river near where you live.
  
  
• WATERS Services - The WATERS services are database and web based services providing user application friendly interfaces to complex analyses. These services make extensive use of the NHD and indexed program data in the RAD, and also integrate other WATERS program data in selected services. Designed as modular units, the services are being developed within a common architecture and each service will be available as it is completed.
  
  
• Ask WATERS
  Ask WATERS answers multi-program questions that draw on information from the databases linked through WATERS. This tool generates cross-program calculations, examines spatial relationships between programs, performs nationwide analyses, produces multi-program inventory reports for a given geographic area, and investigates interstate water quality issues.
  
  
• WATERS Expert Query Tool
  WATERS Expert Query Tool is a web-based application that allows you to create your own queries to display or extract data concerning impaired and assessed waters and associated, approved Total Maximum Daily Loads.
  
  
• NHD Toolkit - The NHD Toolkit is a collection of ArcView extensions provided to assist in the understanding and use of NHD data and in the development of NHD applications and tools.