Methodology Document for RSEI Model Version 2.1.5, October 2007

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

JavaScript appears to be disabled on this computer. Please click here to see any active alerts.

Methodology Document for RSEI Model Version 2.1.5, October 2007

Risk-Screening Environmental Indicators (RSEI) Model