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Note: EPA no longer updates this information, but it may be useful as a reference or resource.

Please see www.epa.gov/nsr/ for the latest information on EPA's New Source Review program.

May 28, 1987 UNAMAP 6 Dispersion Modeling with Building Wake Effects 6.21

The memo provides a discussion of which background (off-site) sources should be explicitly modeled in a regulatory analysis, especially if PSD increment consumption is involved.

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