Watershed

Oral

390743 - A Critical Analysis Of The Lake Champlain’s TMDL

Wednesday, June 6
4:00 PM - 5:30 PM
Location: Greenway IJ
Co-Authors: William Ritter, Newark – University of Delaware

Lake Champlain is a valuable resource in the State of Vermont USA. More than 600,000 people live in the Lake Champlain basin and millions visit each year. Not only recognized as the sixth (6th) largest freshwater lake in the United States, Lake Champlain’s watershed has been designated as an International Biosphere Reserve.

The Lake Champlain has 1,101 square km of surface water and the watershed is 21,332 square km. The Champlain basin extends from the peaks of the Adirondack Mountains in New York State west towards the Green Mountains in Vermont State, and north into the Quebec Province, Canada. Fifty-six percent (56%) of the watershed is in Vermont, 37% in New York, and 7% in Quebec.

Excess phosphorus from a variety of sources has impaired the water quality of Lake Champlain for years. The leading source of phosphorus is agriculture (41%) followed by river instability (21%) and forestland (16%). In 2002, Vermont prepared a plan to reduce phosphorus loadings by developing a Total Maximum Daily Load (TMDL). The USEPA disapproved the Vermont 2002 Lake Champlain Phosphorus TMDL in 2011. In June 2016, USEPA established a new phosphorus TMDL for the twelve (12) Vermont segments of Lake Champlain. The TMDL was developed in collaboration with the Vermont Agency of Natural Resources, Department of Environmental Conservation and the Vermont Agency of Agriculture, Food and Markets. This paper will present background information on the TMDL and a critical analysis of the TMDL.

Srinivasarao Chitikela, PE, PEng, BCEE

Consultant -- Water, Energy, & Environmental
RC-WEE Solutions

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390743 - A Critical Analysis Of The Lake Champlain’s TMDL



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