Quantifying "how clean is clean" for degraded areas in the Great Lakes / by J. Hartwig [and six others]. : En13-5/94-19E-PDF

"One attempt to "How clean is clean?" is through a United States-Canada program to develop and implement comprehensive remedial action plans (RAPs) to restore beneficial uses in 43 Great Lakes Areas of Concern. The International Joint Commission has issued broad guidance in the form of listing/delisting guidelines for determining when use impairments exist and when uses have been restored, and has allowed the federal/state/provincial governments and local stakeholders the flexibility to experiment with establishing quantitative objectives/targets, and how to achieve them. These listing/delisting guidelines have been instrumental in helping reach agreement on problem definition (lack of agreement on problem definition has historically been used as a reason to delay action) and reaching agreement on quantitative endpoints for restoring uses. Such quantitative objectives/targets are being used to drive the RAP process, help organizations pursue a common) mission of restoring uses and help achieve greater accountability"--Abstract, page 2.

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