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Lake Ontario Basin TMDL Project

What is a TMDL?

Total Maximum Daily Load (TMDL) is a regulatory term in the U.S. Clean Water Act (CWA), describing a value of the maximum amount of a pollutant that a body of water can receive while still meeting water quality standards.

While TMDLs have been previously prepared for lakes, ponds, and embayments in New York State, none have been prepared for streams. CEI has been commissioned to prepare TDMLs on several streams listed as impaired and tributary to Lake Ontario in western New York.

TMDL Fact Sheets

Water Quality Restoration Strategy (WQRS)

A WQRS is intended to provide quantitative guidance for watershed planning and implementation of measures to restore water quality. It includes documentation of existing loadings, potential watershed restoration endpoints, and phosphorus allocation options and scenarios.