EGGS 100 Chapter Notes - Chapter 12: Secondary Treatment, Aeration, Aquifer

• School: Bloomsburg University
• Department: Environ, Geog, & Geol Sciences
• Course: EGGS 100
• Professor: Matthew Ricker

Document Summary

Fresh water: relatively pure, with few dissolved salts. Water cycle: precipitation forms rivers, which carry water to oceans and lakes. Ground water: water beneath the surface held in pores in soil or rock. Aquifer: porous, sponge like formations of rock, sand, or gravel that hold water. Zone of aeration: pore spaces are partly filled with water. Zone of saturation: spaces are filled with water. Watershed: the area of land drained by a river and its tributaries. Floodplain: areas nearest to the river"s course that are flooded periodically. Wetlands: the soil is saturated with shallow, standing water. Estuaries: water bodies where rivers flow into the ocean, mixing fresh and salt water. Consumptive use: water is removed from an aquifer and is not returned. Nonconsumptive use: does not remove, or only temporarily removes water. Dam: obstruction placed in a river to block water flow. Pollution: undesirable impacts on health and well-being of humans or other organisms.