Summary of selected computer programs produced by the U.S. Geological Survey
for simulation of groundwater flow and quality  1994
by C.A. Appel and T.E. Reilly
Appendix 1. List of acronyms used to identify selected computer
programs, and the report to which they refer.

Acronym 
Full Name 
Reference 

AQMAN 
Linear and quadratic programming matrix generator using
twodimensional groundwater flow simulation for aquifer management modeling

Lefkoff, L. J., and Gorelick, S. M., 1987 
AQMAN3D 
A mathematical programming system dataset generator for
aquifer management using the U.S. Geological Survey modular threedimensional
finitedifference groundwater flow model 
Puig, J. C., and RolonCollazo, L. I., in press 
AQUIFEMSALT 
A finiteelement model for aquifers containing a seawater
interface 
Voss, C. I., 1984b 
AX 
An axisymmetric finitedifference flow model to simulate
drawdown in and around a pumped well. 
Rutledge, A. T., 1991 
BALANCE 
A computer program for calculating mass transfer for geochemical
reactions in ground water 
Parkhurst, D. L., Plummer, L. N., and Thorstenson, D. C.,
1982 
HOTWTR 
Threedimensional finitedifference model for groundwater
flow and single phase (liquid) heat transport 
Reed, J.E., 1985 
HST3D 
A computer code for simulation of heat and solute transport
in threedimensional groundwater flow systems 
Kipp, K. L., 1987 
HYDROTHERM 
A threedimensional finitedifference model for groundwater
flow and multiphase heat transport in the temperature range of 0 to 1,200oC

Hayba, D.O., and Ingebritsen, S.E., in press 
INTERCOMP 
A model for calculating effects of liquid waste disposal
in deep saline aquifer 
INTERCOMP, 1976; INTERA, 1979 
MBSSAS 
Margules parameters and equilibrium relations in Binary
SolidSolution AqueousSolution systems 
Glynn, P. D., 1991a 
MMSP 
A statistical processor for analyzing simulations made using
the modular finitedifference groundwater flow model 
Scott, J. C., 1990 
MODBRANCH 
A coupled surfacewater and groundwater flow model for
simulation of streamaquifer interaction 
Swain, E. D., and Wexler, E. J., 1993 
MOC 
Computer model of twodimensional solute transport and dispersion
in ground water 
Konikow, L. F., and Bredehoeft, J. D., 1978; Goode, D. J.,
and Konikow, L. F., 1989 
MOCDENSE 
A twoconstituent solutetransport model for ground water
having variable density 
Sanford, W. E., and Konikow, L. F., 1985 
MODFE 
A MODular FiniteElement model (MODFE) for areal and axisymmetric
groundwaterflow problems 
Torak, L. J., 1993a, b and Cooley, R. L., 1992 
MODFLOW 
A modular threedimensional finitedifference groundwater
flow model 
McDonald, M. G., and Harbaugh, A. W., 1988 
MODFLOWARC 
Modifications of the U.S. Geological Survey Modular, finitedifference,
groundwater flow model to read and write geographical information system
file 
Orzol, L. L., and McGrath, T. S., 1992 
MODFLOWP 
A computer program for estimating parameters of a transient,
threedimensional, groundwater flow model using nonlinear regression 
Hill, M. C., 1992 
MODPATH 
Computer programs to compute and display pathlines using
results from the U.S. Geological Survey modular threedimensional finitedifference
groundwater flow model 
Pollock, D. W., 1989, 1990 
NETPATH 
An interactive code for modeling net geochemical reactions
along a flow path 
Plummer, L. N., Prestemon, E. C., and Parkhurst, D. L.,
1991 
PHREEQE 
PHREEQEA computer program for geochemical calculations

Parkhurst, D. L., Thorstenson, D. C., and Plummer, L. N.,
1980 (Revised edition  August 1990) 
PHRQINPT 
An interactive computer program for constructing input data
sets to the geochemical simulation program PHREEQE 
Fleming, G. W., and Plummer, L. N., 1983 
PHRQPITZ 
A computer program incorporating Pitzer's equations for
calculation of geochemical reactions in brines 
Plummer, L. N., Parkhurst, D. L., Fleming, G. W., and Dunkle,
S. A., 1988 
RADFLOW 
A Galerkin finiteelement flow model to predict the transient
response of a radially symmetric aquifer 
Reilly, T. E., 1984 
RADMOD 
Computer program for the simulation of cylindrical flow
to a well using the U.S. Geological Survey Modular FiniteDifference GroundWater
Flow Model 
Reilly, T. E., and Harbaugh, A. W., 1993b 
SALT NORM 
A quantitative chemicalmineralogical characterization of
natural waters 
Bodine, M. W., Jr., and Jones, B. F., 1986 
SATRACHEM 
Numerical simulation of advectivedispersive multisolute
transport with sorption, ion exchange and equilibrium chemistry 
Lewis, F. M., Voss, C. I., and Rubin, Jacob, 1986 
SHARP 
A quasithreedimensional finitedifference simulation model
for freshwater and saltwater flow in layered coastal aquifer systems 
Essaid, H. I., 1990 
SOLINPUT 
A computer code to create and modify input for the geochemical
program SOLMINEQ.88 
DeBraal, J. D., and Kharaka, Y. K., 1989 
SOLMINEQ 
Solutionmineral equilibrium computations 
Kharaka, Y. K., and Barnes, Ivan, 1973 
SOLMINEQ.88 
A computer program for geochemical modeling of waterrock
interactions 
Kharaka, Y., Gunter, W. D., Aggarwal, Pradeep K., Perkins,
E. H., and DeBraal, J. D., 1988 
SUPERMOCK 
Simulation procedure for modeling transient watertable
and artesian stress and response 
Reed, J. E., Bedinger, M. S., and Terry, J. E., 1976 
SUTRA 
A finiteelement simulation model for saturatedunsaturated,
fluiddensitydependent groundwater flow with energy transport or chemicallyreactive
singlespecies solute transport 
Voss, C. I., 1984a 
SUTRAPLOT 
A graphical display program for SUTRA FiniteElement Simulation
Model 
Souza, W. R., 1987 
Trescott2D 
Finitedifference model for aquifer simulation in two dimensions

Trescott, P. C., Pinder, G. F., and Larson, S. P., 1976

Trescott3D 
Finitedifference model for simulation of threedimensional
groundwater flow 
Trescott, P. C., 1975; Trescott, P. C., and Larson, S. P.,
1976; Torak, L. J., 1982 
TRIAG 
A finiteelement model for flow in a twoaquifer system

Mallory, M. I., 1979 
VS2D 
Computer program VS2D to solve the equations of fluid flow
in variably saturated porous media 
Lappala, E. G., Healy, R. W., and Weeks, E. P., 1987 
VS2DT 
Simulation of solute transport in variably saturated porous
media 
Healy, R. W., 1990 
WATCHEM 
Chemical properties of ground water 
Barnes and Clark, 1969 
WATEQ 
A computer program for calculating chemical equilibrium
of natural waters 
Truesdell, A. H., and Jones, B. F., 1973; Truesdell, A.
H., and Jones, B. F., 1974 
WATEQF 
A FORTRAN IV version of WATEQ, A computer program
for calculating chemical equilibrium of natural waters

Plummer, L. N., Jones, B. F., and Truesdell, A. H., 1976
(Revised edition January 1984) 
WATEQ2 
dditional and revised thermochemical data and computer code
for WATEQ2A computerized chemical model for trace and major element speciation
and mineral equilibria of natural waters 
Ball, J. W., Nordstrom, D. K., and Jenne, E.A., 1980 
WATEQ3 
A geochemical model with uranium added 
Ball, J. W., Jenne, E. A., and Cantrell, M. W., 1981 
WATEQ4F 
Revised thermodynamic data base and test cases for calculating
speciation of major, trace, and redox elements in natural waters 
Ball, J. W., and Nordstrom, D. K., 1991 
ZONEBUDGET 
A computer program for calculating subregional water budgets
using results from the U.S. Geological Survey modular threedimensional
finitedifference groundwater flow model 
Harbaugh, A. W., 1990 
