Public Documents


Public Notice

Antidegradation Alternatives Analysis for Bayer CropScience LP, Muscatine, Iowa

Notice Date: February 29, 2024

Notice is hereby given that the Bayer CropScience LP, Muscatine, Iowa, plant has completed a draft antidegradation alternatives analysis for the discharge of treated wastewater to the Mississippi River. The action being considered is the construction of a chemical phosphorus removal process. The Mississippi River is protected for Class A1 primary contact recreational and B(WW-1) warm water beneficial uses and HH for human health. Anyone wishing to comment on the proposed treatment alternative must do so in writing within 30 days
of the date shown at the top of this notice. Comments may be submitted to Bayer CropScience LP,Attn: Elana Becker, 2500 Wiggins Road, Muscatine, IA 52761.

Copies of this notice, and the draft antidegradation alternatives are on file and available for public inspection from 8:00 AM to 4:30 PM Monday through Friday at the Bayer CropScience plant, 2500 Wiggins Road, Muscatine, IA. Copies of this information may be requested by contacting Elana Becker at 563-262-7378, or by email at Bayer CropScience will submit a summary of comments received and their responses to the Iowa Department of Natural Resources with the final alternatives analysis subject to IDNR review and approval.


Public Notice

Iowa Department of Natural Resources

The public notice, draft Prevention of Significant Deterioration (PSD) permit, Technical Support Document, all correspondence, and all application materials regarding the proposed amended PSD permit for the SSAB Iowa, Inc. – Muscatine can be found on the Air Quality Bureau website at

or under the “Public Notice” tab on the EASYAir website at

The public viewing period starts Thursday, February 15, 2024 and ends on Sunday, March 16, 2024.

Public Notice

Iowa DNR Air Quality: Construction Permit Search

The Iowa Department of Natural Resources is proposing to issue one air construction permit to Grain Processing Corporation under Project 24-003. The public viewing period starts Thursday, February 8, 2024 and ends on Sunday, March 10, 2024. 
A public notice on the project will be published in the Muscatine Journal on Thursday, February 8, 2024.
These documents are available on the Air Quality Bureau’s website at: