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Impaired Waters and TMDLs

National Clarifying Guidance for 1998 State and Territory Clean Water Act Section 303(d) Listing Decisions

The guidance clarifies several key policies related to listing of waters under section 303(d) for the 1998 listing cycle.

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National Clarifying Guidance for 1998 State and Territory Clean Water Act Section 303(d) Listing Decisions (PDF)(9 pp, 189 K)