Table 5.26 -- EDCS Classifications whose label begins with W
| Label | Definition | Related concepts | Code |
| WALL | A solid man-made barrier of heavy material used as an enclosure or boundary or for protection. | EC FENCE | 949 |
| WAREHOUSE | A building in which goods or merchandise are stored. | EC STORAGE_DEPOT, EC DEPOT_TERMINAL | 950 |
| WARM_FRONT | A boundary between warm and cold air masses that moves so that the warmer air replaces the colder air; the leading edge of a relatively warm air mass. | EC COLD_FRONT | 951 |
| WASTE_PROCESSING_FACILITY | A site with associated buildings, where waste is processed through chemical, physical, biological or thermal procedures or a combination of those procedures. | EC INCINERATOR, EC DISPOSAL_SITE | 952 |
| WATER | A body of water, e.g., inland water, water except inland, or an ocean surface. | EC WATER | 953 |
| WATER_DATA_CLECT_DEVICE | A device used for the collection of unspecified hydrographic and oceanographic data. | 954 | |
| WATER_DRIVEN_GRISTMILL | A structure equipped with water-driven machinery for grinding grain into flour or meal. | 955 | |
| WATER_EXCEPT_INLAND | An expanse of water that normally has tidal fluctuations. | 956 | |
| WATER_GATHERING_REGION | Protected (restricted use) region incorporating water collection facilities, so designated in order to protect the water above and under ground from being polluted. | 957 | |
| WATER_INTAKE_TOWER | A tower-like structure associated with a dam or water source and used for the intake of water. | 958 | |
| WATER_SURFACE_VEHICLE | A vehicle capable of operation only on the surface of the water, e.g. a barge, boat, or ship. | EC SUBMERSIBLE_VEHICLE | 959 |
| WATER_TOWER | An elevated container, and its supporting structure, used to hold water. | 960 | |
| WATER_TURBULENCE | A disturbance of water caused by the interaction of any combination of waves, currents, eddies, tidal streams, wind, shoal patches and obstructions. | 961 | |
| WATERFALL | A vertical or nearly vertical descent of water. | 962 | |
| WATERING_HOLE | A small natural depression in which water collects, especially a pool where animals come to drink. | EC SPRING, EC WELL | 963 |
| WATERING_PLACE | A place where vessels can replenish their water supply. | 964 | |
| WEAPONS_RANGE | A site and structures designated for the purpose of discharging firearms or detonating munitions, e.g., a firing or gunnery range. | 965 | |
| WEATHER_STATION | A structure where meteorological data are gathered, recorded, and released. | 966 | |
| WELL | A hole drilled or dug into the terrain or sea bed for the extraction of liquids or gases. | EC SPRING, EC WATERING_HOLE | 967 |
| WELLHEAD | The top of a well (e.g., an oil, gas, or water well) that caps the well structure and which may be either located on land or partially submerged offshore (and which nautical vessels can use for lashings). | 968 | |
| WHALE_POD | A naturally occurring significant grouping of whales that persists over a significant period. | 969 | |
| WHARF | A structure primarily used as berthing places for vessels, which may include buildings and related structures, e.g., a pier, wharf, or quay. | 970 | |
| WIND_INDICATOR | A visual device used to provide wind information. | 971 | |
| WIND_ROSE | Wind-related characteristics of the atmosphere organized by direction with respect to a point, e.g., wind statistics such as maximum speed, mean speed, or frequency. | 972 | |
| WIND_TUNNEL | A chamber through which air is forced at controlled velocities in order to study the effects of aerodynamic flow around airfoils, scale models, or other objects. | 973 | |
| WINDMILL | A wind-driven system of vanes attached to a tower-like structure (excluding wind-generated power plants). | 974 | |
| WINDMOTOR | A structure used for generating electrical power from wind. | 975 | |
| WIRE_OBSTACLE | A construction of wire, usually containing barbs or razors, placed to turn, slow, or stop the movement of ground vehicles and foot traffic. | EC FENCE | 976 |
| WOODY_GRASS_LAND | A tract of land covered by woody and/or tree-like grasses of the tropical or temperate regions that have jointed hollow stems with solid nodes, e.g., bamboo or sugar cane. May be further delineated specifically as EC BAMBOO or EC SUGAR_CANE. | 977 | |
| WORSHIP_PLACE | A building that provides shelter for religious ceremonies or worship. | EC CHURCH, EC NON_CHRISTIAN_WORSHIP_PLACE | 978 |
| WRECKING_OR_SCRAP_YARD | A site engaged in the wrecking, dismantling, storage, or resale of discarded products. May be further delineated specifically as EC WRECKING_YARD or EC SCRAP_YARD. | EC DISPOSAL_SITE | 979 |
| WRECKING_YARD | An enclosure within which things are dismantled or torn down. | EC SCRAP_YARD | 980 |