This program is focused on desalination of inland ground, primarily brackish water with inexpensive, environmentally safe materials by a low energy process. In our studies we focused on waters with characteristic salt concentrations typical for New Mexico and the Tularosa basin in particular with Total Dissolved Solids (TDS) of order of 2,000-3,000 ppm. Over 90% of the existing industrial methods for water desalination are based on distillation and reverse osmosis technologies. In our project we applied an entirely new approach based exclusively on chemical processes. Our strategy was based on in-situ crystallization, ion exchange and precipitation of inorganic phases able to sequester the major ionic constituents of brackish water. The resultant ion exchanged materials would contain the remove ions; these materials can then either be recycled, safely deposited in landfills without salt leaching, or used as a sellable building material (incorporated into cement, etc.).