Permitted Solid Waste (SW) sites include facilities that manage
solid waste (household or business garbage). Among the types of
facilities included are landfills, transfer stations, demolition
landfills, composting facilities and solid waste incinerators.
For more information about SW permits, call the MPCA at 218-846-
0470.

Response by an animal that enables it to tolerate a change in a
single factor (for example, temperature) in its environment.

Adjustments made by animals in respect of their environments.
The adjustments may occur by natural selection, as individuals
with favorable genetically acquired traits breed more
prolifically than those lacking these traits (genotypic
adaptation), or they may involve non-genetic changes in
individuals, such as physiological modification (for example,
acclimatization) or behavioral changes (phenotypic adaptation).

Monitoring within natural systems (lakes, rivers, estuaries, and
wetlands) to determine existing conditions.

An organism group of interacting populations in a given
waterbody, for example, fish assemblage or a benthic
macroinvertebrate assemblage.

Collective term describing the organisms living in or depending
on the aquatic environment.

Association of interacting assemblages in a given waterbody, the
biotic component of an ecosystem.

An association of interacting populations of organisms in a
given waterbody. Examples of assemblages used for biological
assessments include: algae, amphibians, birds, fish, reptiles
and amphibians, macroinvertebrates (insects, crayfish, clams,
snails, etc.), and vascular plants.

A measurable component of a biological system.

Animals without backbones, living in or on the sediments, a size
large enough to be seen by the unaided eye, and which can be
retained by a U.S. Standard No. 30 sieve (28 openings/inch,
0.595-mm openings). Also referred to as benthic
macroinvertebrates, infauna, or macrobenthos.