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

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Environment ■■■■■
The environment is "The sum of all external conditions affecting the life, development, and survival . . . Read More
Monitoring ■■■■■
A monitoring is In EMAP, the periodic collection of data that is used to determine the condition of ecological . . . Read More
Hazard Ranking System ■■■■■
A Hazard Ranking System (HRS) is the method EPA uses to assess and score the hazards posed by a site . . . Read More
Radon ■■■■■
Radon (Rn) is a cancer-causing radioactive gas found in many communities' ground water. Radon is a colorless, . . . Read More
Affected Public ■■■■■
An Affected Public is 1. The people who live and/or work near a Hazardous Waste site. 2. The human population . . . Read More
Contamination ■■■■■
A Contamination is defined as the introduction into water, air, and soil of microorganisms, chemicals, . . . Read More
Matrix ■■■■■
The Matrix is the material of which the sample is composed or the substrate containing the analyte of . . . Read More
Sampling ■■■■■
Sampling stands for the selection of observations to acquire some knowledge of a statistical population . . . Read More
Sample ■■■■■
A Sample is a single item or specimen selected from a larger population, such as any subset of a population . . . Read More
Qualified Data ■■■■
Qualified Data are any numerical information that has been modified or adjusted by mathematical or statistical . . . Read More