
Testing and Treating Total Dissolved Solids. While salinity is generally used to describe and measure seawater or certain industrial wastes, the term “total dissolved solids” (TDS) is typically used to describe water high in various salt compounds and dissolved minerals. High TDS levels are common near coastal rivers and oceans due to seawater infiltration of groundwater sources. While one could technically have very high total dissolved solids and very low salinity, we’ll be talking here about high TDS with high levels of salts.Read More