The neutral form of ammonia-nitrogen in water, usually occurring as NH4OH. Un-ionized ammonia is the principal form of ammonia that is toxic to aquatic life. The relative proportion of un-ionized to ionized ammonia (NH4+) is controlled by water temperature and pH. At temperatures and pH values typical of most natural waters, the ionized form is […]
Public water of the state in streams, rivers, lakes, springs or groundwater in excess of that necessary to satisfy prior existing water rights.
Uncertainty is a parameter associated with the result of measurement that characterizes the dispersion of the values that could be reasonably attributed to the measured amount
Aquifer containing water that is not under pressure; water level in a well is the same as the water table outside the well.
Deposit of loosely bound sediment that typically fills topographically low areas.
The program under the Safe Drinking Water Act that regulates the use of wells to pump fluids into the ground.
A tank located at least partially underground and designed to hold gasoline or other petroleum products or chemicals.
Subsurface water in the unsaturated and saturated zones. See also Ground water
A claim to the use of underground water where the use was initiated prior to 1935.
A stand of trees so widely spaced that even with full growth potential realized, crown closure will not occur.
