Summary #
AMD is classified as nonpoint source (NPS) pollution because it does not emerge from a single identifiable pipe or discharge point. This classification has significant legal and funding implications, primarily through Section 319 of the federal Clean Water Act. Watershed organizations working on AMD should understand NPS classification as a key entry point for funding and regulatory programs.
AMD is Nonpoint Source Pollution #
AMD is classified as nonpoint source pollution (NPS), meaning it does not emerge from a distinct, well-defined source such as a pipe. Its origins are diffuse and not well defined — AMD seeps, drains, and flows from a broad landscape of disturbed mine sites rather than a single point of discharge.
Why NPS Classification Matters #
This classification is significant from both a legal and funding standpoint. NPS pollution is addressed under Section 319 of the federal Clean Water Act: http://amrclearinghouse.org/Sub/LEGAL/CleanWaterAct.htm
Section 319 established a framework of federal and state programs specifically to address NPS pollution: http://amrclearinghouse.org/Sub/LEGAL/Section319NPS.htm
Significant federal and state bureaucracies have been built around NPS and Section 319. It is common to refer to programs or funding using “319” as shorthand. Watershed associations working on AMD should become familiar with 319 programs and funding streams — they represent one of the primary funding pathways for AMD assessment and restoration work.
Related Pages #
- What is AMD?
- Impacts of AMD
- Financial Assistance (Organizational Development)
- Funding Sources (Organizational Development)
Source and Last Reviewed #
Sources: http://amrclearinghouse.org/Sub/LEGAL/Section319NPS.htm | http://amrclearinghouse.org/Sub/LEGAL/CleanWaterAct.htm
Last reviewed: 2026-03 | Links may require verification — originally published pre-2010.
Tags: amd, policy, funding, nps, practitioner, program-manager
