he U.S. Geological Survey (USGS), in cooperation with Idaho Department of Environmental Quality, developed spreadsheet mass-balance models for total phosphorus using results from three synoptic sampling periods conducted in the lower Boise River watershed
Etheridge, Alexandra B. aetherid@usgs.gov. Evaluation of total phosphorus mass balance in the lower Boise River and selected tributaries, southwestern Idaho. 2013-01-01.