Emission Reduction Needs Analysis

1
Emission Reduction Needs Analysis

• Prepared by
• Gregory Stella
• VISTAS Technical Advisor Emission Inventories
• Alpine Geophysics, LLC
• VISTAS State and Tribal Air Directors Meeting
• August 18, 2005

2
2018 OTWd Annual Reasonable Progress
June 2005
.
Preliminary Results
Likely to meet
.
May meet
Likely not met
Additional Analyses Needed
3
Initial Conclusions

• No incremental across the board strategy
  available for VISTAS domain
• Additional reductions are most beneficial if
  applied with geographic and pollutant specificity
• Benefits will come from remaining significant
  non-reduced sources

4
Source Type 2018 OTW Base FAnnual Emissions
(Tons)
5
Source Type 2018 OTW Base FAnnual Emissions
(Percent)
6
Limited Geography AnalysisCounties within 200km
of Cape Romain
7
Source Type 2018 OTW - Base FAnnual Emissions
(Tons)
8
Source Type 2018 OTW - Base FAnnual Emissions
(Percent)
9
Source Type 2018 OTW Base FAnnual Emissions
(Tons)
10
Source Type 2018 OTW - 2002 TypicalAnnual
Emissions Reduction (Tons)
11
Limited Geography Analysis Counties within 200km
of Nine Class I Areas
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Next Steps

• Comparable data available for nine Class I areas
  of original interest
• Results for both NOx/SO2
• Present results to TAWG/PWG
• Solicit review from affected States/entities

13
Next Steps

• Identify specific sources with additional control
  available
• Working with stakeholders
• Compare to final Base F haze modeling
• Final design control strategy based on review of
  control analysis and Base F results