Footnotes Footnote 1. Point sources include industries and sewage treatment facilities where pollution is discharged at a discrete point, usually through a pipe. Nonpoint sources contribute pollutants to waters via surface runoff, movement of water through the ground, or air deposition. In this document, we use the term polluted runoff to mean all nonpoint sources. The timeframe for tribes to complete Unified Watershed Assessments has been extended.
Federal partners continue to provide assistance to several hundred tribes around the country.