An Army Corps of Engineers permit
that is issued following a case-by-case evaluation of an application to perform
dredge or fill activities in the Waters of the U.S.,
including wetlands. Related Programs - Section
404, 33 CFR
Any liquid, gaseous, or solid waste resulting from any process of industry,
manufacturing, trade, or business or from the development of any natural
Inflow and Infiltration I and I
The penetration of water
from the soil into sewer or other pipes through defective joints or connections
and/or the penetration of water through the ground surface into the subsurface
Institute for Lake Superior Research ILSR
Original name for the Large Lakes Observatory.
A process that allows a point
source discharger to take into account the quality of its source water when
determining its effluent limitation standards.
Integrated Great Lakes Atmospheric Deposition Network IGLADN
A joint effort of the U.S. and Canada to measure atmospheric
deposition of toxic material to the Great Lakes. It
was mandated by the Great Lakes Water Quality Agreement.
The network also fulfills the requirements of the Great Waters
Program mandated by the 1990 Clean Air Act Amendments
calling for a Great Lakes atmospheric deposition network. One master sampling
station was installed at each of the Great Lakes by the end of 1991 to monitor
for deposition of selected toxic pollutants, including
mercury. Related Programs - Great
Lakes National Program Office
Integrated Pest Management
A management system that uses all suitable techniques
in an economical and ecologically-sound manner to reduce pest populations and
maintain them at levels that do not have an economic impact, while minimizing
danger to humans and the environment.
for Great Lakes Research IAGLR
An international association of scientists that study the world's large
lakes. They publish a research periodical called the Journal of Great
Lakes Research and hold yearly meetings somewhere within the Great
Joint Commission IJC
An international organization formed
by Canada and the United States in 1909 as a result of the Boundary
Waters Treaty to assist in preventing disputes and resolving issues involving
all water bodies shared by the U.S. and Canada and to make recommendations about
their management, particularly water quality issues and the regulation of water
levels. Three commissioners are appointed by each country. Under the Great
Lakes Water Quality Agreement, the IJC is also required to monitor progress
by Canada and the United States as the two countries implement the goals and objectives
of the agreement. The IJC analyzes and publishes data, provides advice and recommendations
and undertakes other initiatives as requested. Two advisory boards, the Great
Lakes Water Quality Advisory Board and the Science Advisory
Board, exist to assist the commission with the agreement-related responsibilities.
Related Programs - Great Lakes Water Quality Agreement
Rivers, lakes and other waters
that flow across state or international boundaries. These include waters of the
The classification for animals that do not have a backbone or internal skeleton.
See also zooplankton and benthic invertebrates.