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Risk Evaluation Resources


Initial screening using the tables and links below will help determine if site contaminant concentrations meet unrestricted use standards.

     Preliminary Soil Remediation Goals (PSRG) Table (May 2019)
     Groundwater Standards and IMACs (15A NCAC 02L)
     Surface Water Standards (15A NCAC 02B)
     Vapor Intrusion Screening Levels (February 2018)

Calculating Risk

A risk calculator is provided to quantify human health risks when multiple contaminants are present and when conditions justify using site-specific input parameters. 

     DEQ Risk Calculator (May 2019)
DEQ Risk Calculator User Guide (May 2019)
     Risk Assessment Report Forms
     Risk Assessment Equations and Calculations (October 2017)
     What's New to the DEQ Risk Calculator (May 2019)

Contact the appropriate oversight program with any questions.

What They’re Saying: 

This article first appeared in Environmental News, the newsletter of the Environment, Energy & Natural Resources Law Section of the North Carolina Bar Association

    Risk-Based Site Closure: Not Just for Toxicologists and Risk Assessors