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County planners, watershed group outline phased work after Cayuga Lake phosphorus TMDL; dredging timeline unclear
Summary
Tompkins County planning staff and watershed partners described the Department of Environmental Conservation's final phosphorus TMDL for the Cayuga Lake watershed, local pilot projects to identify implementation sites and stream corridor studies, and committee members pressed for clearer dredging timelines and state engagement.
Darby Kiley, associate planner with the Tompkins County Department of Planning and Sustainability, told the Planning, Energy and Environmental Quality Committee on July 14 that the DEC’s final total maximum daily load (TMDL) released in 2024 calls for a roughly 30% reduction in phosphorus load across the Cayuga Lake watershed.
Kiley said the TMDL apportions the largest share of required reductions to agricultural sources — about 40–42% across the watershed — while developed‑land best management practices (tree planting, buffer restoration, infiltration, stormwater ponds and similar BMPs) are another implementation…
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