Accepting comments from May 26, 2026, through June 26, 2026.
The Idaho Department of Environmental Quality (DEQ) seeks comment on a draft permit to construct (P-2017.0050) revision for Itafos Conda LLC’s Phosphoric Acid Plant.
Itafos Conda LLC is a phosphorous-based fertilizer producer with operations 7 miles north of Soda Springs, Idaho. The company’s Phosphoric Acid Plant uses four phosphogypsum stacks to help process phosphate by evaporating process water. The process emits gaseous fluoride as a byproduct, which is a regulated pollutant. Three of the four phosphogypsum stacks are currently regulated under a separate permit to construct, P-2009.0002.
Itafos Conda LLC is seeking to amend its permit to construct (P-2017.0050) by combining the requirements for P-2009.0002 under P-2017.0050, creating consistent fluoride emission calculation methods for the four phosphogypsum stacks, and capping emissions for one of the phosphogypsum stacks.
DEQ has determined that construction and operation according to the proposed permit will not cause or significantly contribute to a violation in of any ambient air quality standard and will not injure or unreasonably affect human or animal life or vegetation. DEQ has reviewed the application and completed an analysis of the information submitted by the applicant to combine the requirements from P-2009.0002 for F-Gyp-0, F-Gyp-1, and F-Gyp-2 into PTC P-2017.0050 for F-Gyp-3, and subsequently terminate P2009.0002. Based on this analysis, DEQ proposes to issue the permit to construct to Itafos Conda LLC, Soda Springs.
The draft permit materials are available for public review at DEQ’s State Office (1410 N. Hilton St.) and below in related documents. Written comments on the draft permit and supporting materials will be accepted through June 26, 2026, at 5 p.m. MT. Submit comments using the form below or via mail or email to:
Dianne Hobbs
1410 N. Hilton St.
Boise, ID 83706
dianne.hobbs@deq.idaho.gov
For technical assistance on questions concerning this project or the permitting process, contact Dianne Hobbs at (208) 373-0440 or dianne.hobbes@deq.idaho.gov.
Related Documents
Permit Materials
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
Official Government Website
DEQ seeks comment on draft permit to construct revision for Itafos Conda LLC
Accepting comments from May 26, 2026, through June 26, 2026.
The Idaho Department of Environmental Quality (DEQ) seeks comment on a draft permit to construct (P-2017.0050) revision for Itafos Conda LLC’s Phosphoric Acid Plant.
Itafos Conda LLC is a phosphorous-based fertilizer producer with operations 7 miles north of Soda Springs, Idaho. The company’s Phosphoric Acid Plant uses four phosphogypsum stacks to help process phosphate by evaporating process water. The process emits gaseous fluoride as a byproduct, which is a regulated pollutant. Three of the four phosphogypsum stacks are currently regulated under a separate permit to construct, P-2009.0002.
Itafos Conda LLC is seeking to amend its permit to construct (P-2017.0050) by combining the requirements for P-2009.0002 under P-2017.0050, creating consistent fluoride emission calculation methods for the four phosphogypsum stacks, and capping emissions for one of the phosphogypsum stacks.
DEQ has determined that construction and operation according to the proposed permit will not cause or significantly contribute to a violation in of any ambient air quality standard and will not injure or unreasonably affect human or animal life or vegetation. DEQ has reviewed the application and completed an analysis of the information submitted by the applicant to combine the requirements from P-2009.0002 for F-Gyp-0, F-Gyp-1, and F-Gyp-2 into PTC P-2017.0050 for F-Gyp-3, and subsequently terminate P2009.0002. Based on this analysis, DEQ proposes to issue the permit to construct to Itafos Conda LLC, Soda Springs.
The draft permit materials are available for public review at DEQ’s State Office (1410 N. Hilton St.) and below in related documents. Written comments on the draft permit and supporting materials will be accepted through June 26, 2026, at 5 p.m. MT. Submit comments using the form below or via mail or email to:
Dianne Hobbs
1410 N. Hilton St.
Boise, ID 83706
dianne.hobbs@deq.idaho.gov
For technical assistance on questions concerning this project or the permitting process, contact Dianne Hobbs at (208) 373-0440 or dianne.hobbes@deq.idaho.gov.
Related Documents
Permit Materials
Accessibility Services: The Idaho Department of Environmental Quality will provide reasonable language access services and/or disability services for documents at no charge. To request an accommodation under Title VI of the Civil Rights Act of 1964 or Americans with Disabilities Act, contact DEQ’s nondiscrimination coordinator at (208) 373-0271 or accessibility@deq.idaho.gov. Para obtener información en español, visite https://www.deq.idaho.gov/about-us/accessibility/.
Public Comment Form