The Twenty Needs Report: How Research Can Improve the TMDL Program

This report, posted on the TMDL Technical Support Documents web page, is a synthesis of the main research recommendations identified in many recent studies of TMDL science needs and research opportunities. It was prepared as an aid to research planning. The author developed this report in cooperation with EPA research laboratories while studying TMDL-related research within EPA, but the content of the report is useful to persons involved in water quality research in general.