For years after the passage of the Clean Water Act, the section of the law intended to address threats and problems at the watershed level was poorly implemented or ignored. Lawsuits during the 1990's that addressed inadequate or missing 303(d) lists prompted better lists and schedules for TMDL development. As a result, the TMDL program has garnered significant resources in nearly every state.
To find the TMDLs in your state, click on the map at http://www.epa.gov/owow/tmdl/.