English for Science & Nature Glossary of Terms - W

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waste - garbage, trash.

waste site - dumping ground.

waste stream - overall waste disposal cycle for a given population.

waterborne contaminants - unhealthy chemicals, microorganisms (like bacteria) or radiation, found in tap water.

water filters - substances (such as charcoal) or fine membrane structures used to remove impurities from water.

water quality - the level of purity of water; the safety or purity of drinking water.

water quality testing - monitoring water for various contaminants to make sure it is safe for fish protection, drinking, and swimming.

watershed - a region or area over which water flows into a particular lake, reservoir, stream, or river.

well - a dug or drilled hole used to get water from the earth.