| Title | Definition |
|---|---|
| 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. |
| Water scarcity |
A water supply that limits food production, human health, and economic development. Severe scarcity is taken to be equivalent to 1,000 cubic meters per year per person or greater than 40% use... read more |
| Water Table, Perched (Perched Ground Water Table) |
The upper surface of a local zone of soil water saturation held above the main body of groundwater by an impermeable layer or stratum, (usually clay) and separated from the main body of... read more |
| 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. |
| Wetland |
land (marshes or swamps) saturated with water constantly or recurrently; conducive to wide biodiversity [fn]... read more |
| Wilderness |
land remaining in basically wild (i.e., undisturbed) condition, with few if any traces of human activities. |