flowing well/spring--a well or spring that taps groundwater under pressure so that water rises without pumping. See transpiration. As this runoff moves across the land surface, it picks up soil particles and pollutants, such as nutrients and pesticides. pH--a measure of the relative acidity or alkalinity of water. parts per billion--the number of "parts" by weight of a substance per billion parts of water. After a river or lake crests, the water will begin to decrease in the coming days. gage height--the height of the water surface above the gage datum (zero point). milligram (mg)--One-thousandth of a gram. * 1 cfs = 1.983 acre-feet per day = 646,320 gallons = 2447 cubic meters of water. impermeable layer--a layer of solid material, such as rock or clay, which does not allow water to pass through. NGVD of 1929--National Geodetic Vertical Datum of 1929. (2) The loss of water by infiltration into the soil from a canal, ditches, laterals, watercourse, reservoir, storage facilities, or other body of water, or from a field. organic matter--plant and animal residues, or substances made by living organisms. cubic feet per second (cfs)--a rate of the flow, in streams and rivers, for example.

peak flow--the maximum instantaneous discharge of a stream or river at a given location. Large drainage basins, like the area that drains into the Mississippi River contain thousands of smaller drainage basins. Water CFS abbreviation meaning defined here. Secondary wastewater treatment may be accomplished by biological or chemical-physical methods. river--A natural stream of water of considerable volume, larger than a brook or creek. In a separate sewer system, storm sewers are completely separate from those that carry domestic and commercial wastewater (sanitary sewers). flood stage--The elevation at which overflow of the natural banks of a stream or body of water begins in the reach or area in which the elevation is measured. rating curve--A drawn curve showing the relation between gage height and discharge of a stream at a given gaging station. These are forms of diffuse pollution caused by sediment, nutrients, organic and toxic substances originating from land-use activities, which are carried to lakes and streams by surface runoff. Even though very little oxygen will dissolve in water, it is extremely important in biological and chemical processes. porosity--a measure of the water-bearing capacity of subsurface rock. spray irrigation--an common irrigation method where water is shot from high-pressure sprayers onto crops. commercial water use--water used for motels, hotels, restaurants, office buildings, other commercial facilities, and institutions. Permeable materials, such as gravel and sand, allow water to move quickly through them, whereas impermeable material, such as clay, don't allow water to flow freely. alkaline--sometimes water or soils contain an amount of alkali (strongly basic) substances sufficient to raise the pH value above 7.0 and be harmful to the growth of crops. wastewater--water that has been used in homes, industries, and businesses that is not for reuse unless it is treated.

In particular, it is of concern and often measured in settling tanks and skimmers. municipal water system--a water system that has at least five service connections or which regularly serves 25 individuals for 60 days; also called a public water system. percolation--(1) The movement of water through the openings in rock or soil. For example, clay may have a very high porosity with respect to potential water content, but it constitutes a poor medium as an aquifer because the pores are usually so small. Also, the volume of water added by this process.

The gates in McHenry and Algonquin have been running wide open since more than 7 inches of rain fell over the area last week. septic tank--a tank used to detain domestic wastes to allow the settling of solids prior to distribution to a leach field for soil absorption. Get the top CFS abbreviation related to Water. discharge--the volume of water that passes a given location within a given period of time. With respect to water movement, it is not just the total magnitude of porosity that is important, but the size of the voids and the extent to which they are interconnected, as the pores in a formation may be open, or interconnected, or closed and isolated.

The term is often used by hydrologists when they’re referring to a small section of a stream or river rather than its entire length.