Drainage Basins used for Development of the Watershed
Regressions for Pesticides (WARP) Model
This data set consists of 204 drainage basin boundaries for U.S. Geological Survey's (USGS) 
stream sites sampled in the National Water Quality Assessment (NAWQA) Program and the National 
Stream Quality Accounting Network (NASQAN). These drainage basin boundaries are used to generate 
watershed characteristics for …