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Green Plains Central City
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August 9, 2018
September 10, 2018


Nebraska Department of Environmental Quality
Air Quality Division

Notice is given to the public, according to Chapter 14 of Title 129 - Nebraska Air Quality Regulations, that the Department is proposing to issue a Class I operating permit to Green Plains Central City, LLC (FID 82836), a fuel-grade ethanol manufacturing plant to construct a new equipment to increase denatured ethanol production by 25 million gallons per year (Standard Industrial Classification code 2869) located at 214 20th Street, Central City, Merrick County, Nebraska. The potential emissions of regulated air pollutants (in tons per year (tpy)) at this facility will be: 121.75 tpy of Particulate Matter (PM), 87.31 tpy of PM ≤ 10 microns (PM10), 61.16 tpy PM ≤ 2.5 microns (PM2.5), 62.83 tpy Sulfur Dioxide, 182.40 tpy Oxides of Nitrogen, 222.58 tpy Carbon Monoxide, 176.67 tpy Volatile Organic Compounds, 8.81 tpy of Acetaldehyde, 2.53 tpy Acrolein, 1.19 tpy Formaldehyde, 3.79 tpy Hexane, 3.84 tpy Methanol, 20.35 tpy total HAPs, and 653,196.51 tpy Greenhouse Gases CO2 equivalents (CO2e).

Merrick County meets the National Ambient Air Quality Standards (NAAQS) for those pollutants subject to a NAAQS and is expected to continue in that status. Merrick County is unclassifiable in regard to the state Total Reduced Sulfur (TRS) standards and no TRS emissions are expected from this project. No impact is anticipated on habitat for any rare or threatened species.

The NDEQ proposes to issue a Class I operating permit with specific conditions, based on Title 129, which authorizes specific requirements from federal rules: NSPS (40 CFR 60) Subparts A, Db, Dc, Kb, and VVa,; specific testing requirements for various equipment; specific inspection, operation, maintenance, and monitoring requirements; and specific recordkeeping and reporting requirements.

The proposed permit and supporting materials are available for inspection by the public Thursday August 9, 2018 through September 10, 2018 at the office of the NDEQ, Suite 400, 1200 "N" Street, Lincoln, Nebraska, and electronically at Comments received during this period will be considered prior to the final decision. During this period the applicant, or any interested person or group of persons, may request or petition the Director for a public hearing, the request must state the nature of the issues to be raised and all arguments and factual grounds supporting their position. If a public hearing is granted by the Director, the hearing will be advertised by public notice at least 30 days prior to the hearing.

Inquiries may be made at (402) 471-2186 or . Individuals requiring special accommodations or alternate formats of materials should notify the NDEQ by calling (402) 471-2186. TDD users should call (800) 833-7352 and ask the relay operator to call the NDEQ at (402) 471-2186. For further information, to submit comments, or request a hearing you may contact the NDEQ by email “” or by mail submitted to the attention of David Christensen, Air Quality Division, P.O. Box 98922, Lincoln, Nebraska 68509-8922.

Within 60 days after the US Environmental Protection Agency Administrator review, persons may petition the Administrator to object to the issuance of the proposed permit. Any such petition shall be based only on objections to the permit that were raised with reasonable specificity during the 30-day comment period, unless the petitioner demonstrates that it was not practicable to raise such objection within such period. For specific dates for which the 60-day petition period is open, contact Stephenie Moyer at (402) 471-2186. Petitions should be mailed to:

James B. Gulliford – Regional Administrator, US EPA Region VII
Attn: Air Permitting & Compliance Branch
11201 Renner Boulevard, Lenexa, KS 66219