Science.gov
"Science.gov searches over 60 databases and over 2,200 scientific websites to provide users with access to more than 200 million pages of authoritative federal science information including research and development results...Science.gov is governed by the interagency Science.gov Alliance, which includes representatives from scientific and technical information organizations from the following federal agencies:
U.S. Environmental Protection Agency
National Technical Information Service (NTIS)
Indexes U.S. Government reports in all areas of science and technology.
NTRL
"Index to technical publications from the U.S. government. Includes full text for reports from 1995 and select full text for earlier publications."
U.S Department of Labor Statics: Civil Engineers
U.S Department of Labor Statistics: Environmental Engineers
