Watershed and Hydrologic Condition Analysis
Greenfield, James M.
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Watershed and hydrologic condition analysis (WHCA) is another methodology for analyzing impacts of variable flow and associated pollutants on a watershed. (USDA, 1997.) The WHCA process complements the 6 elements and three general steps for watershed analysis and provides the logical basis for TMDL development process that are dominated by nonpoint source contributions.