The Supreme Court will hear oral arguments on Wednesday in a case with significant implications for the Clean Water Act. Environmentalists are concerned that the justices may be inclined to weaken the law. The case will address how specific pollutant discharge limits must be under the Clean Water Act and whether the EPA can impose generic prohibitions on pollution discharge systems (San Francisco v. EPA). The justices will also hear arguments over the correct standard of review for veterans benefits claims (Bufkin v. McDonough).