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PM 2.5 New Source Review. 2007 Southeastern Permitting Workshop Tampa, Florida May 11, 2007 – Morning Session. Current PM 2.5 NSR Guidance. PM 2.5 is a regulated NSR pollutant. Proposed PM 2.5 NSR implementation rules issued November 1, 2005.

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Pm 2 5 new source review

PM2.5 New Source Review

2007 Southeastern Permitting Workshop

Tampa, Florida

May 11, 2007 – Morning Session


Current pm 2 5 nsr guidance
Current PM2.5 NSR Guidance

  • PM2.5 is a regulated NSR pollutant.

  • Proposed PM2.5 NSR implementation rules issued November 1, 2005.

  • By memos issued in October 1997 and April 2005, EPA recommended use of PM10 as a surrogate for PM2.5 until PM2.5 NSR implementation rules become effective.

  • Title V permitting comment in recent non-NSR final PM2.5 implementation rules.


Proposed pm 2 5 nsr implementation rules
Proposed PM2.5 NSR Implementation Rules

  • PM2.5 significant emissions rate = 10 tpy (direct emissions)

  • Precursors:

    • SO2 - mandatory nationwide

    • NOx - included unless State demonstrates otherwise

    • VOC - excluded unless State demonstrates otherwise

    • Ammonia - excluded unless State demonstrates otherwise

  • SO2 and NOx significant emissions rate = 40 tpy (same as in other NSR rules)


Other comments on pm 2 5 nsr implementation
Other Comments on PM2.5NSR Implementation

  • Final NSR implementation rules expected Fall 2007, not including components in next item.

  • Separate proposed rules to be issued for PM2.5 increments, significant impact levels, and significant monitoring concentrations.

  • Final rules and separate proposed rules planned for issuance on same day.


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