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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Water

best available technology

Natural environment; Water

The water treatment(s) that EPA certifies to be the most effective for removing a contaminant.

endemism

Natural environment; Water

the characteristic of being confined to or indigenous in, a certain area or region.

jar test

Natural environment; Water

A laboratory test procedure with differing chemical doses, mix speeds, and settling times, to estimate the minimum or ideal coagulant dose required to achieve water quality goals.

primacy state

Natural environment; Water

A State that has the responsibility and authority to administer EPA's drinking water regulations within its borders. The State must have rules at least as stringent as EPA's.

titration

Natural environment; Water

An analytical technique to determine how much of a substance is present in a water sample by adding another substance and measuring how much of that substance must be added to produce a reaction.