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CALIBRATION AND APPLICATION OF QUAL‐II TO THE LOWER WINOOSKI RIVER 1
Author(s) -
Benschoten John Van,
Walker William W.
Publication year - 1984
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1984.tb04648.x
Subject(s) - environmental science , hydropower , water quality , nitrate , calibration , hydrology (agriculture) , turbidity , environmental engineering , engineering , chemistry , ecology , statistics , geotechnical engineering , oceanography , organic chemistry , geology , mathematics , electrical engineering , biology
A modified version of the U.S. Environmental Protection Agency's QUAL‐II water quality simulation model is calibrated and applied to the Lower Winooski River, Vermont. The river flows through the metropolitan Burlington area and is impacted by several industrial and municipal point sources and by operation of hydropower facilities. Several structural modifications are made in the model to improve water quality simulations in rivers impacted by algal growth; these include the addition of organic nitrogen and organic phosphorus compartments and provision for algal uptake of ammonia and/or nitrate nitrogen. The model is interfaced with statistical programs which facilitate tabulation, display, and analysis of observed and predicted concentrations. The model is calibrated and tested against data from two intensive water quality surveys. Applications demonstrate the factors controlling water quality and sensitivities to point source waste management strategies and flow, as influenced by hydropower operations.