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COLORADO
Department of Public
Health b Environment
Weld County - Clerk to the Board
1150O St
PO Box 758
Greeley, CO 80632
September 21, 2023
To Whom it May Concern:
RECEIVED
SEP 21 2023
WELD COUNTY
COMMISSIONERS
On September 21, 2023, the Air Pollution Control Division will begin a 30 -day public notice period for
Summit DJ -O, LLC - Makena Gas Plant. 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 notice
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/cdphe
Jared Polis, Governor I Jill Hunsaker Ryan, MPH, Executive Director
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2023-2774
„...„ Air Pollution Control Division
” Notice of a Proposed Project or Activity Warranting Public
Comment
Website Title: Summit DJ -O, LLC - Makena Gas Plant - Weld County
Notice Period Begins: September 21, 2023
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: Summit DJ -O, LLC
Facility: Makena Gas Plant
Natural Gas Processing Plant
NESE Section 25 T8N R62W
Weld County
The proposed project or activity is as follows: Summit DJ -O, LLC (Summit) submitted on 4/5/2023 a permit
application to cover a new SI RICE to be located in this natural gas processing plant. The new SI RICE unit will
replace an existing engine that failed.
Major Stationary Source considerations: This facility is considered an existing major source of VOC and NOx.
This project includes the installation of only new emission units; therefore, the aplicability test for NANSR
review becomes: zero to PTE or PTE (Regulation 3, Part D, Section II.A.4.c.). NOx and VOC PTE, as defined
in Regulation Number 3, Part A, Section 1.B.43. is below the significant levels as defined in Regulation number
3, Part D, Section II.A.44. and, as a result, this modification is not a major modification. However,
uncontrolled emissions of NOx are greater than the significant levels and operator is requesting enforceable
emission limits to avoid major stationary source requirements and NANSR review.
The Division has determined that this permitting action is subject to public comment per Colorado Regulation
No. 3, Part B, Section III.C due to the following reason(s):
• the source is requesting a federally enforceable limit on the potential to emit in order to avoid other
requirements.
The Division has made a preliminary determination of approval of the application.
A copy of the application, the Division's analysis, and a draft of Construction Permit 23WE0385 are available
on the Division's website at https://www.colorado.gov/cdphe/air-permit-public-notices
The Division hereby solicits submission of public comment 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 calendar days after
the date of this Notice. Comments may be submitted using the following options:
• Use the web form at https://www.colorado.gov/cdphe/air-permit-public-notices. This page also
includes guidance for public participation
• Send an email to cdphe apcd_airpermitcomments@state.co.us
• Send written comments to our mailing address:
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COLORADO
Department etnubuc
Health 6 Envkonme a,
Air Pollution Control Division - Oil Et Gas Unit
Colorado Department of Public Health and Environment
4300 Cherry Creek Drive South, APCD-SS-B1
Denver, Colorado 80246-1530
NOTE: Comments submitted to the division will be uploaded to an online document repository and will be
accessible to the public. Your comments and the division's responses are not considered confidential and will
be publicly accessible, including your name and any other personal information you provide in your
comments.
2.02
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COLORADO
Dapaxtmento[Publle
Health 6 Environment
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