Can TMDLs be required for watersheds without a single point source? Can TMDLs be required for watersheds without a single point source? A. Yes, because of Justice Kennedy's swing vote in Rapanos v. US. B. Yes, because water quality standards and criteria depend upon the designated use, not the sources of pollution. C. No, because TMDLs are only required where other measures, such as the NPDES, fail to achieve the desired water quality. D. No, because under the Clean Water Act's cooperative federalism model, the states propose and EPA disposes