Significance Level definition
Significance Level means, for a given air pollutant X, either of the following, whichever applies:
Significance Level means the classification of the significance of a resource for the cultural heritage of the Republic;
Significance Level means the observed level of contamination that has been determined to be allowed to remain at the point of any contamination for a pre-approved time period. While the concentration of a significance level is above background concentrations, the observed level must be below applicable maximum contaminant limits established under the federal Safe Drinking Water Act, water classification standards, or below applicable air quality standards.
More Definitions of Significance Level
Significance Level means pollutants subject to regulation that have a potential to emit (PTE) over a specified emissions threshold. If that threshold is exceeded, then the source is evaluated under the NSR program.