logo U.S. Environmental Protection Agency Argonne National Laboratory U.S. Army Corps of Engineers

Glossary

A B C D E F G H I L M N O P Q R S T U V W Z

Lampblack
Lampblack is a finely divided, bulky, black soot, at one time the most important black pigment used in the manufacture of printing inks. It is one of several gas plant residues found at manufactured gas plant (MGP) sites.

See also:

Land Revitalization Initiative
The Land Revitalization Initiative was undertaken by EPA in partnership with states, tribes, territories, and a broad range of stakeholders to restore land to productive economic and green space uses. In April 2003, EPA announced the Land Revitalization Agenda to incorporate land reuse into the RCRA, brownfields, and underground storage tank (UST) hazardous waste cleanup programs.

Landfarming
Landfarming is the spreading and incorporation of wastes into the soil to initiate biological treatment.

Landfill
A sanitary landfill is a land disposal site for nonhazardous solid wastes at which the waste is spread in layers compacted to the smallest practical volume.

Laser-Induced Fluorescence/Cone Penetrometer
Laser-induced fluorescence/cone penetrometer is a field screening method that couples a fiber optic-based chemical sensor system to a cone penetrometer mounted on a truck. The technology can be used for investigating and assessing soil and water contamination.

See also:

Leachate
A leachate is a contaminated liquid that results when water collects contaminants as it trickles through wastes, agricultural pesticides, or fertilizers. Leaching may occur in farming areas and landfills and may be a means of the entry of hazardous substances into soil, surface water, or groundwater.

Lead
Lead is a heavy metal that has been used in the manufacture of gasoline, paints, and other substances.

Light Nonaqueous Phase Liquid (LNAPL)
An LNAPL is one of a group of organic substances that are relatively insoluble in water and are less dense than water. LNAPLs, such as oil, tend to spread across the surface of the water table and form a layer on top of the water table.

See also:

Long-Term Monitoring (LTM)
LTM typically is performed to verify that contaminants at a site pose no risk to human health or the environment and that natural processes are reducing contaminant levels and risk as predicted.



Acronyms Glossary Contact Us
Disclaimer, Privacy, and Security Notice | Notice of Use
You will need the free Adobe Reader to view some of the files on this site.
Download the Adobe® Reader® | See EPA's PDF page to learn more.