definition of brackish
Brackish water does not have an exact definition, but it is typically defined as distastefully salty. but less saline than seawater (between 1,000 to 10,000 ppm [parts per million] in total dissolved. solids [TDS]). In addition to certain surface water settings such as estuaries, brackish water can be. found in aquifers. In some regions of the country with limited availability of freshwater, desalina-. tion of brackish groundwater is being used as an alternative supply.