Guidelines for Numerical Modeling in Tier 3 Assessments and Other Corrective Actions

This document aims to provide guidance for consultants who contemplate using a numerical modeling program such as Visual MODFLOW or GMS.  The guidance stresses how one should approach a modeling project and how to report the results. The need to include in a report all details of the multi-step modeling process is treated. Three examples of numerical modeling of petroleum releases are provided from the western Iowa towns of Climbing Hill, Ida Grove, and Sioux City. The examples are not complete modeling reports of the type described in the text, but are included to show the degree of detail needed to accomplish such a project and to demonstrate validity to IDNR.

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GUIDELINES for Numerical Modeling Part 1(*.pdf 1,335 kb)
GUIDELINES for Numerical Modeling  Part 2(*.pdf 2,114 kb)

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