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Clean Air Act stationary source · ICIS-AIR OK0000004000300612

ET GATHERING PROCESSING LLC / ALFALFA COMPRESSOR STATION, Cherokee, OK: Clean Air Act compliance record, inspections, violations, penalties

ET GATHERING PROCESSING LLC / ALFALFA COMPRESSOR STATION, at SE OF N2550 RD/E0190 RD, Cherokee in Alfalfa County, Oklahoma, is an operating synthetic minor source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “No Violation Identified”. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.

Identity

Facility as filedET GATHERING PROCESSING LLC / ALFALFA COMPRESSOR STATION
ICIS-AIR IDOK0000004000300612
EPA facility registry ID110063231211
Operating statusOperating
Emissions classificationSynthetic minor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
AddressSE OF N2550 RD/E0190 RD, Cherokee, OK 73728
CountyAlfalfa County
In a nonattainment countyNo (EPA Green Book)
Industry (NAICS)Oil and gas extraction (NAICS 2111)
SIC code1311
EPA region06

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs ET GATHERING PROCESSING LLC / ALFALFA COMPRESSOR STATION is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.

Compliance evaluations

DateWhat EPA recordedAgencyPrograms
October 27, 2023FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 24, 2023PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 20, 2022PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 12, 2022PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
July 9, 2021PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 11, 2020PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 27, 2020PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 31, 2019PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 8, 2019PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 4, 2019PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
November 9, 2018FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 26, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 10, 2017PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.

DateWhat EPA recordedAgencyPrograms
January 31, 2024Earliest FRV determinationStateNew Source Performance Standards
January 17, 2024Earliest FRV determinationStateNew Source Performance Standards

Enforcement and penalties

0 formal enforcement actions since January 1, 2017, 0 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.

Informal enforcement

DateWhat EPA recordedAgency
January 19, 2024Notice of ViolationState

Stack tests

DateWhat EPA recordedAgency
January 15, 2025PassState
July 10, 2024PassState
July 10, 2024PassState
May 4, 2023PassState
May 3, 2023PassState
May 3, 2023PassState
May 2, 2023PassState
April 19, 2022PassState
April 19, 2022PassState
April 18, 2022PassState
April 18, 2022PassState
April 28, 2021PassState
April 28, 2021PassState
April 27, 2021PassState
April 27, 2021PassState
April 28, 2020PassState
April 28, 2020PassState
April 27, 2020PassState
April 27, 2020PassState
May 29, 2019PassState
May 29, 2019PassState
May 28, 2019PassState
April 29, 2019PassState
April 5, 2018PassState
April 4, 2018PassState
April 4, 2018PassState
April 4, 2018PassState
April 3, 2018PassState
April 3, 2018PassState
April 5, 2017PassState
April 5, 2017PassState
April 5, 2017PassState
April 4, 2017PassState
April 4, 2017PassState
April 4, 2017PassState

Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110063231211 there.

Nearby on the register

Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.