OCR Text |
Show Depletion - Water lost or made unavailable for return to a given designated area, river system or basin. It is intended to represent the net loss to a system. The terms consumption and depletion are often used interchangeably but are not the same. For example, water exported from a basin is a loss or depletion to that system as it is not consumed within the basin. Water diverted to irrigated crops in a given system, but not returned for later use, is depletion. Precipitation that falls on irrigated crops is not considered a part of the supply like surface water and groundwater diversions. For this reason, precipitation falling on and consumed by irrigated crops is not considered as being a depletion to the system. Diversion / Withdrawal - Water diverted or withdrawn from supply sources such as streams, lakes, reservoirs, springs or wells for a variety of uses including cropland irrigation and residential, commercial, institutional, and industrial purposes. The terms diversion and withdrawal are often used interchangeably. Industrial Use - Use associated with the manufacturing or assembly of products which may include the same basic uses as commercial business. However, the volume of water used by industrial businesses can be considerably greater than water use by commercial businesses. Institutional Use - Uses normally associated with general operation of various public agencies and institutions including drinking water; personal sanitation; facility cleaning and maintenance; and irrigation of parks, cemeteries, play grounds, recreational areas and other facilities. Municipal Use - This term is commonly used to include residential, commercial and institutional. It is sometimes used interchangeably with the term " public water use." Municipal and Industrial ( M& I) Use - This term is used to include municipal and industrial use. Private- Domestic Use - Includes water from private wells or springs for use in individual homes, usually in rural areas not accessible to public water supply systems. Residential Use - Water used for residential cooking; drinking; washing clothes; miscellaneous cleaning; personal grooming and sanitation; irrigation of lawns, gardens, and landscapes; and washing automobiles, driveways, and other outside facilities. A. 2.2 Water Supply Terms Water is supplied by a variety of systems for many uses. Most water supply systems are owned by an irrigation company or a municipality, but in some cases the owner/ operator is a private company, or is a state or federal agency. Thus, a " public" water supply may be either publicly or privately owned. Also, systems may supply treated or untreated water. Culinary Water Supply - Water meeting all applicable safe drinking water requirements for residential, commercial and institutional uses. This is also known as potable water. Municipal Water Supply - A supply that provides culinary grade water for residential, commercial, institutional and industrial uses. Municipal, community and city are often used interchangeably. Public Water Supply - Includes culinary water supplied by either privately or publicly owned community systems which serve at least 15 service connections or 25 individuals at least 60 days per year. Water from public supplies may be used for residential, commercial, institutional, and industrial purposes, including irrigation of publicly and privately owned open areas. Secondary Water Supply - Pressurized or open ditch water supplies of untreated water for irrigation of privately or publicly owned lawns, gardens, parks, cemeteries, golf courses and other open areas. These are sometimes called " dual" water systems. They provide water in addition to the culinary supply. A. 2.3 Groundwater Terms Aquifer - A saturated body of rock or soil which will yield water to wells or springs Groundwater - Water which is contained in the saturated portions of soil or rock beneath the land surface. Excludes " soil moisture" referring to water held by capillary action in upper unsaturated zones of soil or rock. Mining - Long- term groundwater overdraft in excess of recharge. A- 3 |