In November 2001, G. Tracy Mehan, then assistant director of the U.S. Environmental Protection Agency (EPA) Office of Water, addressed the Environmental Economics Advisory Committee. His presentation, "Building on Success - Going Beyond Regulation," outlined reasons for what he called a "change in paradigm." Among his remarks were the following: 1. "Times have changed dramatically." 2. "Point source controls alone are not capable of achieving or maintaining ambient environmental standards." 3. "The assimilative capacity of our environment is limited, and the technological and economic limitations of our existing regulatory framework are at hand."
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