OPPD Turtle Creek Station Air Quality Construction Permit Notice

Nebraska DWEE Announcements

Published March 5th, 2026

Detected March 22nd, 2026

Summary

The Nebraska Department of Water, Energy, and Environment is proposing to issue an air construction permit to Omaha Public Power District for its Turtle Creek Station. The notice includes details on anticipated emissions and proposed permit conditions, with a public comment period open until April 6, 2026.

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What changed

The Nebraska Department of Water, Energy, and Environment (NDWEE) has issued a public notice regarding the proposed issuance of an air construction permit to Omaha Public Power District (OPPD) for its Turtle Creek Station in Gretna, Nebraska. The permit covers the construction of combustion turbines and details anticipated emissions for various air contaminants, including Particulate Matter, Oxides of Nitrogen, Carbon Monoxide, Volatile Organic Compounds, Hazardous Air Pollutants, and Greenhouse Gases. The proposed permit includes new operating limits and revised emission limitations.

Interested parties can submit comments on the proposed permit from March 5, 2026, to April 6, 2026. The NDWEE will consider these comments before making a final decision. The public can also request a hearing during this comment period. OPPD is responsible for ensuring the proposed station does not negatively impact threatened or endangered species.

What to do next

Review proposed air construction permit for OPPD Turtle Creek Station
Submit comments or request a public hearing by April 6, 2026

Source document (simplified)

Program Name Air Quality Program FID 116017 Location 14601 S 168th St., Gretna, Sarpy County, Nebraska 68028 Nearest City Gretna Link to Public Notice Documents Public Notice Documents Link to view all program documents All Program Documents May be slow to load depending on the number of documents

Permit Type Construction Comment Start Date

5 March 2026

End of Comment Period

6 April 2026

PUBLIC NOTICE

Nebraska Department of Water, Energy, and Environment

Permitting and Engineering Division

Notice is given to the public, according to Chapter 10 of Nebraska Administrative Code Title 129 - Notice is given to the public, according to Chapter 10 of Nebraska Administrative Code Title 129 - Nebraska Air Quality Regulations, that the Department is proposing to issue an air construction permit to Omaha Public Power District (FID 116017), an electric generation facility (Standard Industrial Classification code 4911) located at 14601 S 168 th St., Gretna, Sarpy County, Nebraska. The anticipated change in emissions of regulated air contaminants in tons per year (tpy) due to the proposed construction at this facility will be: 27.69 tpy of Particulate Matter (PM); 66.34 tpy of PM ≤ 10 microns (PM 10); 66.33 tpy PM ≤ 2.5 microns (PM 2.5); 4.45 tpy Sulfur Dioxide; 155.54 tpy Oxides of Nitrogen; 587.50 tpy Carbon Monoxide; 23.35 tpy Volatile Organic Compounds; -1.14 tpy of Formaldehyde; 4.30 tpy total Hazardous Air Pollutants (HAP); and 1,056,432 tpy Greenhouse Gases CO 2 equivalents (CO 2 e).

All Counties in Nebraska currently meet the National Ambient Air Quality Standards (NAAQS) for those pollutants subject to a NAAQS. There are currently no Counties classified as being in non-attainment with the State Total Reduced Sulfur (TRS). It is the source’s responsibility to ensure no take of threatened or endangered species result from the proposed power station.

The Department proposes to issue a construction permit with specific conditions, based on Title 129, which prescribes new annual heat input-based operating limits for the three 225-megawatt dual fuel simple cycle combustion turbines and revises carbon monoxide start-up emission limitations.

The proposed permit and supporting materials are available Thursday, March 5 th, 2026 through Monday, April 6 th, 2026 at the NDWEE, 245 Fallbrook Blvd, Suite 100, Lincoln, Nebraska, and electronically at https://dwee.nebraska.gov. Comments received by the Department during this period will be considered prior to the final decision. Only comments received by the Department during this period on new and significantly revised conditions to the previous construction permit(s) will be considered. 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 be in writing and 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 dwee.airquality@nebraska.gov. Individuals requiring special accommodations or alternate formats of materials should notify the NDWEE by calling (402) 471-2186. TDD users should call (800) 833-7352 and ask the relay operator to call the NDWEE at (402) 471-2186. For further information, to submit comments, or request a hearing you may contact the NDWEE by email “ dwee.airquality@nebraska.gov ” or by mail submitted to the attention of Air Construction Permitting Section Supervisor, 245 Fallbrook Blvd, Suite 100, Lincoln, Nebraska 68521.

The NDWEE does not discriminate on the basis of race, color, national origin, disability, age, or sex in administration of its programs or activities, and NDWEE does not intimidate or retaliate against any individual or group because they have exercised their rights to participate in or oppose actions protected/prohibited by 40 C.F.R. Parts 5 and 7, or for the purpose of interfering with such rights.

Si necesita traducción de documentos al Español, por favor llame a NDEE al (402) 471-2186.