HomeMy WebLinkAbout20251695.tiffCOLORADO
Department of Public
Health 8 Environment
Weld County - Clerk to the Board
1150 O St
PO Box 758
Greeley, CO 80632
June 11, 2025
To Whom It May Concern:
RECEIVED
JUN 1 12025
WELD COUNTY
COMMISSIONERS
On June 11, 2025, the Colorado Air Pollution Control Division will begin a 30 -day
public comment period for Bison IV Operating, LLC - True Ranch Fee 2326H. A copy of
this public notice is enclosed.
Thank you for assisting the division by posting a copy of this notice in your office. A
public copy of this notice is required by Colorado Air Quality Control Commission
regulations. The notice must be available for public inspection for a period of thirty
(30) days from the beginning of the public comment period. Please reference the
public notice for instructions on submitting comments.
4300 Cherry Creek Drive S., Denver, CO 80246-1530 P 303-692-2000 www.colorado.gov/cdohe
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Website Title:
Air Pollution Control Division
Notice of a Proposed Construction Permit Warranting Public Comment
Bison IV Operating, LLC - True Ranch Fee 2326H - Weld County
Notice Period Begins: June 11, 2025
Notice is hereby given that an application for a proposed project or activity has been submitted to
the Colorado Air Pollution Control Division for the following source of air pollution:
Applicant: Bison IV Operating, LLC
Facility: True Ranch Fee 2326H
Well Production Facility
NENE quadrant of Section 23, Township 12N, Range 65W
Weld County
The proposed project or activity is as follows:
Bison IV Operating, LLC (Bison) submitted this permit modification to modify the six (6) 500
barrel fixed roof crude oil storage vessels (point 001, permit 19WE0770) at the True Ranch Fee
2326H facility. This permit modification reflects a decrease in the permitted throughput which
directly correlates to a decrease in emissions. This modification also reflects the development of
new site specific emission factors. The facility is considered a synthetic minor source of VOC for
the NANSR, Title V and PSD programs, and is considered a synthetic minor source of n -Hexane for
the Title V program. This is an existing well production facility located in the serious ozone
nonattainment area.
The division has determined that this permitting action is subject to public comment requirements
under Colorado Air Quality Control Commission Regulation Number 3, Part B, Section III.C due to
the following reason(s):
• This source is requesting a federally -enforceable limit on the potential to emit to avoid
other requirements. (Regulation Number 3, Part B, Section III.C.1.d.)
The division has made a preliminary determination of approval of the application.
4300 Cherry Creek Drive S., Denver, CO 80246-1530 I P 303-692-2000 I www.colorado.gov/cdphe
Jared Polls, Governor I Jill Hunsaker Ryan, MPH, Executive Director
A copy of the application, the division's analysis, and a draft of construction permit number
19WE0770 are available on the division website: Air Permit Public Notices
The division hereby solicits submission of public comments from any interested person concerning
the ability of the proposed project or activity to comply with the applicable standards and
regulations of the commission. The division will receive and consider written public comments for
thirty (30) calendar days after the date of this notice. Comments may be submitted using the
following options:
Submit comments via web form: Form for Public Comment on Draft Permit
Submit comments via email: cdphe apcd airpermitcomments@state.co.us
Submit comments via mail:
Air Pollution Control Division - Oil Et Gas Unit
Colorado Department of Public Health and Environment
4300 Cherry Creek Drive South, APCD-SS-B1
Denver, CO 80246-1530
NOTE: Comments submitted to the division will be uploaded to an online document repository and
will be accessible to the public. Your comment(s) and the division's response(s) are not considered
confidential and will be publicly accessible, including your name and any other personal
information you provide in your comment(s).
4300 Cherry Creek Drive S., Denver, CO 80246-1530 I P 303-692-2000 I www.colorado.Qov/cdohe
Jared Polis, Governor I Jill Hunsaker Ryan, MPH, Executive Director
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