PHRQINPT, an interactive computer program for constructing input data sets to the geochemical simulation program PHREEQE

PHRQINPT is a FORTRAN 77 program which facilitates formulation of the input data file to PHREEQE (Parkhurst, Thorstenson, and Plummer, 1980). PHRQINPT runs interactively and contains many features to help the user construct the input data set. This report describes these features and gives instructions on the use and implementation of PHRQINPT. A listing of the program and the two accompanying data sets are given in the attachments, along with two examples. (USGS)