This 2001 User's Guide from the Washington State Department of Ecology explains how to use spreadsheet workbook tools (MTCASGL and MTCATPH) to calculate soil and groundwater cleanup levels under the Model Toxics Control Act. The guide covers how to enter site-specific data—such as chemical properties, exposure parameters, and hydrogeological characteristics—to determine safe contamination thresholds. It is intended for environmental cleanup professionals working on hazardous substance remediation in Washington State.Open full document
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This user’s guide from the Washington State Department of Ecology Toxics Cleanup Program describes workbook tools (MTCASGL and MTCATPH) for calculating soil and ground water cleanup levels under the Model Toxics Control Act cleanup regulation. It covers installation, technical requirements, and instructions for using worksheets to calculate soil and potable ground water cleanup levels for individual hazardous substances. The guide includes detailed explanations of equations, input parameters, and how to interpret outputs.