Geohydrochemical models for solute migration. Volume 3. Evaluation of selected computer codes. Final report. [EQ3NR/EQ6; MINTEQ; SATURN; FEMWATER1/FEMWASTE1; TRANS; FIESTA]

This volume reports on the simulation of geochemistry and transport test cases based in part on actual disposal sites. It also contains a brief evaluation of a coupled geohydrochemical code based on column studies of solute transport. These simulations have been conducted with two geochemistry codes (EQ3NR/EQ6 and MINTEQ), three flow and transport codes (SATURN, FEMWATER1/FEMWASTE1, and TRANS), and one coupled geohydrochemical code (FIESTA). Based on the results of this and related research, options are presented for the development of needed computational packages (i.e., codes) and a recommendation is made for the direction of future activity on design specifications for a geohydrochemical code for application to solute migration from utility solid-waste disposal sites.