Comprehensive Environmental Response, Compensation and Liability Information System (CERCLIS), Version 2

The "Comprehensive Environmental Response, Compensation and Liability
Information System, Version 2 (CERCLIS)" supports Environmental Protection
Agency (USEPA) Headquarters and regions for the management and oversight of the
Superfund program. It has two purposes: maintain an automated inventory of
abandoned, inactive, or uncontrolled hazardous waste sites; and, act as a
vehicle for regions to report status of major stages of site cleanup. A hotline
will support CERCLIS operations at headquarters and regional program offices.
The system provides a decentralized national system where each region controls
and enters its respective data on regional systems.

CERCLIS contains one entry for each hazardous waste disposal or spill site that
has either been listed by the USEPA on the National Priorities List (NPL) for
cleanup under Superfund or nominated for consideration for the NPL. More than
38,000 sites across the United States were covered by the database at the last
update. The CERCLIS database is updated on a quarterly basis by the USEPA.