acequia: An irrigation ditch.
aquifer: A geological formation that contains sufficient staruated, permeable material to yield significant quantities of water to wells and springs.
cistern: A receptacle for holding water or other liquid, especially a tank for catching and storing rainwater.
drip irrigation: An irrigation system in which water is applied directly to the root zone of plants by means of applicators(emitters, porous tubing, perforated pipe, etc…) operated under low pressure.
drought: A long period of below average precipitation.
dryland farming: Practice of crop production without irrigation in semiarid regions usually by using water conserving farming techniques.
evapotranspiration: the process of transferring moisture from the earth to the atmosphere by evaporation of water and transpiration from plants.
flood irrigation: The application of irrigation water where the entire surface of the soil is covered by ponded water.
fresh water: Water that is not salty. It naturally occurs in ice sheets, ice caps, glaciers, bogs, ponds, lakes, rivers and streams, and underground as groundwater in aquifers and underground streams.
greywater: Wastewater generated from domestic activities such as laundry, dishwashing, and bathing, which can be recycled on-site for uses such as landscape irrigation and constructed wetlands.
groundwater: The water beneath the surface of the ground, consisting largely of surface water that has seeped down.
non-potable water: Water non suitable for drinking.
mayordomo: Executive Officer or ditch boss of the community acequia.
potable water: Water that is safe for human consumption. Sometimes also called treated water.
precipitation: The rain, snow, hail, sleet, and mist that falls upon the earth. The quantity of water accumulated from these events.
rainwater harvesting: The collection and storage of precipitation for reuse.
recharge: The addition of water to an aquifer by infiltration, either directly or into the aquifer or indirectly by way of another rock formation. It can be natural, as when precipitation infiltrates into the water table; or artificial, as when water is injected through wells or spread over permeable surfaces for the purpose of recharging the aquifer.
recycled water: Water that is used more than one time before it passes back into the natural hydrologic system.
runoff: Water which is not absorbed by the soil or landscape to which it is applied. Runoff occurs when water is applied too quickly, particularly if there is a severe slope. Storm water runoff which is created by natural precipitation rather than human-caused or applied water use.
sustainable: Pertaining to a system that meets the needs of the present without compromising the ability of future generations to meet their own needs.
virtual water: The amount of water used to create a product.
wastewater: Water that contains dissolved or suspended solids as a result of human use. Also called blackwater.
watershed: An area from which water drains and contributes to a given point on a stream or river.
water conservation: A reduction in water use accomplished by implementation of water conservation or water efficiency measures. A water conservation measure is an action, behavioral change, device, technology, or improved design or process implemented to reduce water loss, waste, or use.
water footprint: The water footprint is an indicator of freshwater use that looks at both direct and indirect water use of a consumer or producer. The water footprint of an individual, community or business is defined as the total volume of freshwater that is used to produce the goods and services consumed by the individual or community or produced by the business.
water reclamation: Comprehensive water recycling. Water from every human and industrial use is recycled. The concept that water is a resource that can be used more than once. Most of the uses of water reclamation are non-potable uses such as: washing cars, flushing toilets, cooling water for power plants, concrete mixing, artificial lakes, and irrigation for golf courses and public parks.
water table: The level at which the groundwater is found.
xeriscape: Landscaping concept that requires less water for vegetation that is suited to soils and climate.