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Water: Uniform National Discharge Standards (UNDS)

Weather Deck Runoff

Note: The documents on this webpage were generated a number of years ago. Some of the documents and data within may have been succeeded by more recent efforts.

Weather deck runoff consists of precipitation, washdowns, and seawater collected on exposed portions of a vessel. The anticipated standard would require Armed Forces vessels to control weather deck runoff through the adoption and implementation of best management practices.

You will need Adobe Acrobat Reader to view the Adobe PDF files on this page. See EPA's PDF page for more information about getting and using the free Acrobat Reader.


Nature of Discharge:
Summary (PDF) (2 pp, 16K) Exit EPA Disclaimer and full discussion (PDF) (31 pp, 255K)

Draft Characterization Analysis Report

Draft Discharge Assessment Report

Draft Environmental Effects Analysis Report (PDF) (38 pp, 231K)

Draft Feasibility Impact Analysis Report (PDF) (51 pp, 278K)


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