Public Notice Information
Big Ox Energy LLC
Dakota City
Dakota City
Public Notice Documents
All Program Documents
May be slow to load depending on the number of documents
March 10, 2018
April 3, 2018


Nebraska Department of Environmental Quality
Air Quality Division

Notice is given to the public, according to Chapter 14 of Nebraska Administrative Code Title 129 - Nebraska Air Quality Regulations, that the Department is proposing to issue a construction permit to Big Ox Energy – Siouxland, LLC (FID# 105921) an existing sewage treatment facility (Standard Industrial Classification code 4952) with biologically-based natural gas production located at 1616 D Avenue in Dakota City, Nebraska. The anticipated change in emissions of regulated air contaminants in tons per year (tpy) due to the proposed Significant Revision at this facility will be: 7.93 tpy of Particulate Matter (PM); 6.57 tpy of PM ≤ 10 microns (PM10); 6.32 tpy of PM ≤ 2.5 microns (PM2.5); 83.21 tpy of Sulfur Dioxide (SOx); 11.55 tpy of Oxides of Nitrogen (NOx); 12.59 tpy of Carbon Monoxide (CO); 22.45 tpy of Volatile Organic Compounds (VOCs); 21.70 tpy of Hydrogen Sulfide (H2S); and 276,783 tpy of Greenhouse Gases CO2 equivalents (CO2e).

Dakota County meets the National Ambient Air Quality Standards (NAAQS) for those pollutants subject to a NAAQS and is expected to continue in that status. No impact is anticipated on habitat for any rare or threatened species.

The Department proposes to issue a construction permit with specific conditions, based on Title 129, which requires the use of H2S control devices and monitoring systems, places emissions and concentration limitations, and specifies recordkeeping and reporting requirements.

The proposed permit and supporting materials are available Saturday, March 10, 2018 through Tuesday, April 3, 2018 at the NDEQ, Suite 400, 1200 "N" Street, Lincoln, Nebraska, and electronically at 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 . 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 Gary Buttermore, Air Quality Division, P.O. Box 98922, Lincoln, Nebraska 68509-8922.