Note to docket EPA-HQ-OAR-2004-0439

Tim Smith, EPA/OAQPS

May 29, 2007

  SEQ CHAPTER \h \r 1 	Emissions reductions contained in the Atlanta
attainment SIP achieve approximately the same reductions that the NOx
SIP Call would have as described below.  Control measures implemented
for the 1-hour ozone attainment demonstration for the Atlanta area where
phased in beginning in 1999 and were fully implemented by the ozone
season 2003.  

Due to the 1999 Atlanta attainment SIP, five Georgia Power Plants in the
Atlanta area are limited to the equivalent of 0.13 lb/million BTU (five
plant average).  Combined with the two remaining large Georgia Power
Plants there is a seven plant limit of 0.20 lb/million BTU.

Total NOx reductions modeled for the Atlanta attainment SIP were 431
tons per day (Table 8 of EPA Region 4's 12/01 technical support document
(TSD) for the Atlanta SIP.   For convenience, this TSD is included in
docket EPA-HQ-OAR-2004-0439).  The NOx SIP call for GA would have
achieved fine grid emission reductions of 387 tons per day of NOx
(59,258 tons per ozone season, 69 FR 21629).  Thus, total emission
reductions from the Atlanta SIP were estimated to be at least as great
as reductions from the NOx SIP Call.   Note that the NOx measures in the
Atlanta attainment SIP include emissions reduction measures for
stationary engines and gas turgines (30 tons per day), open burning (8
tons per day), and new boilers and fuel burning equipment (0.67 ton per
day).

