Herst & Associates, Inc. recognizes that, when applied in the proper situations, computer modeling of groundwater movement and contaminant fate and transport is an invaluable tool to facilitate effective short- and long-term environmental decision-making. Herst & Associates, Inc. maintains state-of-the art computer capabilities, which enhances our ability to perform multiple scenario evaluations in an efficient manner and with increased level of detail. Herst & Associates, Inc. most often employs computer modeling expertise to evaluate historic sources of impact or to analyze the cost-benefit of various remedial options.