Water supplied for municipal and industrial uses provided through a municipal distribution system.

A flat-bottomed - roughly circular volcanic crater of explosive origin that is often filled with water. Macroclimate

An animal without a backbone - large enough to see without magnification.

A chemical element necessary in relatively large amounts (usually more than one part per million [ppm] in the plant) for the growth of plants.

(1) A member of the macroscopic plant life - especially of a body of water. (2) The macroscopic plants in the aquatic environment. The most common macrophytes are the rooted vascular plants that are usually arranged in zones in aquatic ecosystems and restricted in the area by the extent of illumination through the water and sediment deposition along the shoreline.

Algal plants large enough either as individuals or communities to be readily visible without the aid of optical magnification.

A whirlpool of extraordinary size or violence.

(Geology) Molten rock found in the mantle - beneath the crust of the earth. When forced toward the surface - magma cools and solidifies to become Igneous rock.

Water driven out of Magma during crystallization.

The use of magnets to separate ferrous materials from mixed municipal waste stream. Main

A canal that delivers water from a primary source of supply to several points of diversion or canal-side turnouts to smaller distribution systems.

A pool formed by mid-channel scour that encompasses greater than sixty percent of the wetted channel.

(1) The major reach of a river or stream formed by the smaller tributaries which flow into it. (2) The principal watercourse of a river - excluding any tributaries.

Flood conditions resulting in extensive inundation and property damage. Typically characterized by the evacuation of people and livestock and the closure of both primary and secondary roads. Also see Minor Flooding and Moderate Flooding.

A subdivision of the piedmont slope or basin floor major physiographic parts that reflects a major morphogenetic process operating through a long time - or that is the prominent result of a special erosional or depositional history. Many major landforms are dissected and their original area now is occupied by Component Landforms.