Navajo Risk Assessment Calculator Tool
Workbook Overview
This preliminary remediation goal (PRG) calculator is intended to assist the user to compare calculated PRGs for radionuclides and metals using default exposure scenarios (both standard and Navajo Nation specific) with user-selected exposure inputs. The equations used in this calculator are the same as those in the PRG calculator on the USEPA website (USEPA 2020a) and the Regional Screening Levels (RSL) calculator (USEPA 2020b).
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Navajo Risk Assessment Calculator Tool (xlsm)
Note that this workbook uses macros: The user must allow operation of macros on opening the workbook; if this is not done, the workbook will not function as designed. The workbook is also protected, but no password is needed to unprotect worksheets. The buttons to the right will protect all worksheets, or unprotect all worksheets if needed. Changing one of the variables that activates macros will also re-protect all worksheets.