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See Also
Air Quality Programs and Issues
Air Quality Permitting in Idaho
Regional Haze
Contact DEQ
State
Office
Air Quality Division
Cheryl A. Robinson, P.E.
Air Quality Permitting Engineer
(208)
373-0220
cheryl.robinson@deq.idaho.gov
Site Map
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Air Quality Permitting: Southeast Idaho Energy (SIE) Power County Advanced Energy Center (PCAEC)
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| Proposed Project |
| Southeast Idaho Energy (SIE) submitted an application for a Permit to Construct (PTC) in July 2007. In April 2008, SIE withdrew that application and submitted a revised PTC application. The revised project is for a facility to gasify coal and petcoke to produce nitrogenous fertilizers and elemental sulfur. Major components and changes include:
- Install two GE gasifiers (one for production, one in hot standby as backup).
Revised compared to the single large Conoco Phillips gasifier proposed in July 2007.
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| Public Information Meetings |
| September 18, 2007: American Falls, Southeast Idaho Energy (SIE) Open House (this is not a DEQ informational meeting) |
February 25-27, 2008: SIE Open House Announcement (this is not a DEQ informational meeting) and Updated Project Summary Sheet
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| SIE public informational meetings (these are not DEQ informational meetings) |
| Tuesday, July 22, 2008 |
American Falls Library, 11 a.m.-6 p.m. |
| Wednesday, July 23, 2008 |
Aberdeen City Hall, 4-6 p.m.
Rockland City Hall, 7-8:30 p.m. |
| Thursday, July 24, 2008 |
Blackfoot City Hall, 11 a.m.-3 p.m.
Pocatello Holiday Inn, 4-7 p.m. |
DEQ Public Informational Meetings and Hearings on Proposed Air Quality Permit
A limited number of hard copies of the permit and statement of basis will be available at the informational meetings. |
Monday, September 22, 2008
6:30-8:30 p.m. |
Pocatello City Hall, Council Chambers
911 N. 7th Avenue, Pocatello |
Tuesday, September 23, 2008
6:30-8:30 p.m. |
American Falls Public Library, Community Room
308 Roosevelt St., American Falls
(Bilingual (Spanish/English) DEQ staff will be available at this meeting to answer questions. Personal bilingüe estara disponible para contestar sus preguntas en español.) |
Wednesday, September 24, 2008
10:30 a.m.-1:30 p.m. |
Tribal Business Center, Business Council Chambers
Pima Drive, Fort Hall |
DEQ Public Hearing
Thursday, October 9, 2008
6:30-8:30 p.m. |
American Falls Public Library, Community Room
308 Roosevelt St., American Falls
This is not an informational meeting.
A hearing officer and court reporter will be available to take comments. |
DEQ Public Informational Meeting and Public Hearing
Monday, October 20, 2008
Informational Meeting: 6 - 7 p.m
Public Hearing: 7:30 - 8:30 p.m. |
Pocatello City Hall, Council Chambers
911 N. 7th Avenue, Pocatello
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| Air Permitting Approximate Timeline and Permitting Documents |
| April 2008 |
SIE submits revised PTC application on April 26, 2008: |
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SIE Project Fact Sheet (pdf 1.6 mb, 2 pages) |
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SIE Air and Water Quality Fact Sheet (pdf 967 kb, 2 pages) |
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Cover Letter (pdf 128 kb, 2 pages) |
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Certification (pdf 606 kb, 1 page) |
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Application (pdf 2.2 mb, 169 pages) |
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Appendix A: Reference Documents (pdf 22 kb, 4 pages) |
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Appendix B: DEQ Permit Application Forms
(pdf 706 kb, 60 pages) |
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Appendix C: Plot Plan (pdf 287 kb, 1 page) |
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Appendix D: Emission Calculations (pdf 2.4 mb, 142 pages) |
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> Appendix D Spreadsheet: Flares - Startup Upset (Excel) |
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> Appendix D Spreadsheet: Feedstock (Excel) |
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> Appendix D Spreadsheet: Steady State Operations (Excel) |
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Appendix E: RACT/BACT/LAER Clearinghouse Summary
(pdf 144 kb, 48 pages) |
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Appendix F: Modeling Protocol (pdf 2.8 mb, 82 pages) |
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Appendix G: Class I Analysis (pdf 116 kb, 3 pages)
Federal Land Manager Determination (pdf 19 kb, 3 pages)
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Appendix H: Cooling Tower Material Safety Data Sheet
(pdf 255 kb, 90 pages) |
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Appendix I: Visibility Analysis (pdf 69 kb, 9 pages) |
| July 2008 |
SIE submits Addendum No. 1 to add an option to install a Claus Sulfur Recovery Unit instead of a Haldor-Topsoe Wet Sulfuric Acid Plant. This will allow flexibility to install either unit (but not both) to reduce emissions of sulfur compounds. |
| July 30-31, 2008 |
SIE submits Addendum No. 2, revised modeling to reflect manufacturer guarantee for reduced particulate emissions from the cooling tower. The required certification for the submittal was received on August 11, 2008. |
| August 11, 2008 |
DEQ determines that the application is complete. |
| September 22, 2008 |
DEQ issues draft permit and statement of basis for a 30-day public comment period
to run September 24 - October 24, 2008. (View DEQ letter of transmittal.)
As requested by the Shoshone-Bannock Tribes and members of the public, DEQ will hold public information meetings early in the public comment period to explain the technical analysis and the basis for the draft permit conditions. See above for scheduled dates and times. |
| October 15, 2008 |
In response to a request from the Sierra Club, DEQ extends the public comment period for 30 days, to November 24, 2008. |
| November 24, 2008 |
Public comment period closes. |
| December 10, 2008 |
SIE submits Addendum No. 3 requesting that the sulfuric acid plant option be deleted from its permit. SIE intends to use a Claus Sulfur Recovery unit to produce elemental sulfur. |
| January 9, 2009 |
SIE submits Addendum No. 4 in response to a December 24, 2008, request for clarification from DEQ. |
| February 10, 2009 |
DEQ issues permit to construct for project.
› Link to permit, statement of basis, and response to comments. |
| New: March 17, 2009 |
Sierra Club, Idaho Conservation League, and Shoshone-Bannock Tribes file a Petition for Contested Case Proceeding with the Board of Environmental Quality.
› View legal notice of filing. |
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| Project Approximate Timeline |
Begin construction in mid-2009. Startup planned in 2012. |
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| Ambient Air Quality Impacts |
Air quality impacts from the project were below significant impact levels. In accordance with the Rules for the Control of Air Pollution in Idaho, SIE was therefore not required to evaluate the combined impacts of the PCAEC with impacts from other existing sources.
DEQ developed graphics, however, that compare the maximum predicted ambient impacts with the primary National Ambient Air Quality Standards (NAAQS). These"bar charts" also include representative background concentrations. In addition, modeling results are shown graphically for short-term 24-hour impacts for PM10 and SO2.
American Falls area and Fort Hall Indian Reservation:
Primary NAAQS comparison - criteria pollutants
PM10 Impacts, 24-hour averaging period
SO2 Impacts, 24-hour averaging period
Pocatello area:
Primary NAAQS comparison - PM10 and SO2
PM10 Impacts, 24-hour averaging period
SO2 Impacts, 24-hour averaging period
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