AMD is classified as
nonpoint source pollution (NPS) meaning that it does not emerge from a distinct,
well defined source such as coming from a pipe. It's origins are diffuse
and not well defined.
This classification is
particularly significant from a legal and funding stand-point. NPS
pollution is covered by Section 319
of the Federal Clean Water Act.
A significant federal and state bureaucracies have been built up around NPS and
Section 319. It's common to refer to programs or funding simply by using
"319" as the qualifier.
Watershed associations
should definitely become familiar with 319 programs and funding streams as an
ally to fight AMD.