Water

Water

Water is a chemical compound with the chemical formula H20. A water molecule contains one hydrogen atom and two oxygen atoms. Water is a liquid at standard ambient temperature and pressure though it can be a solid (ice)in low temperatures or evaporate into water vapor a higher temperatures.

Industry: Natural environment

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contour plowing

Natural environment; Water

Soil tilling method that follows the shape of the land to discourage erosion.

contour strip farming

Natural environment; Water

A kind of contour farming in which row crops are planted in strips, between alternating strips of close-growing, erosion-resistant forage crops.

contract labs

Natural environment; Water

Laboratories under contract to EPA, which analyze samples taken from waste, soil, air, and water or carry out research projects.

control technique guidelines (CTG)

Natural environment; Water

EPA documents designed to assist state and local pollution authorities to achieve and maintain air quality standards for certain sources (e.g. organic emissions from solvent metal cleaning known as ...

conventional pollutants

Natural environment; Water

Statutorily listed pollutants understood well by scientists. These may be in the form of organic waste, sediment, acid, bacteria, viruses, nutrients, oil and grease, or heat.

conventional site assessment

Natural environment; Water

Assessment in which most of the sample analysis and interpretation of data is completed off-site; process usually requires repeated mobilization of equipment and staff in order to fully determine the ...

conventional systems

Natural environment; Water

Systems that have been traditionally used to collect municipal wastewater in gravity sewers and convey it to a central primary or secondary treatment plant prior to discharge to surface waters.