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Clean Air Act stationary source · ICIS-AIR OK0000004001100380

ET GATHERING PROCESSING LLC / RELAY CREEK COMPRESSOR STATION, Greenfield, OK: Clean Air Act compliance record, inspections, violations, penalties

ET GATHERING PROCESSING LLC / RELAY CREEK COMPRESSOR STATION, at 0.4MI E OF E0870/N2540 RDS, Greenfield in Blaine 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 / RELAY CREEK COMPRESSOR STATION
ICIS-AIR IDOK0000004001100380
EPA facility registry ID110070205303
Operating statusOperating
Emissions classificationSynthetic minor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
Address0.4MI E OF E0870/N2540 RDS, Greenfield, OK 73772
CountyBlaine County
In a nonattainment countyNo (EPA Green Book)
Industry (NAICS)Pipeline transportation (NAICS 4862)
SIC code4922
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 / RELAY CREEK 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
November 29, 2022PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
September 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
May 23, 2022PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 16, 2021PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 6, 2021PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
September 28, 2020PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 31, 2020PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
December 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
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 27, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 10, 2018PCE On-Site Record/Report ReviewStateMACT 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
March 5, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 27, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 27, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 27, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 27, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
February 16, 2018PCE 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.

EPA’s violation history file holds no violation for ICIS-AIR OK0000004001100380 since January 1, 2017.

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

EPA’s informal action file holds no notice or warning for ICIS-AIR OK0000004001100380 since January 1, 2017.

Stack tests

DateWhat EPA recordedAgency
August 28, 2024PassState
February 27, 2024PassState
January 9, 2024PassState
November 2, 2022PassState
November 2, 2022PassState
August 29, 2022PassState
June 1, 2022PassState
January 20, 2021PassState
October 12, 2020PassState
April 13, 2020PassState
April 13, 2020PassState
April 13, 2020PassState
April 16, 2019PassState
April 16, 2019PassState
April 15, 2019PassState
April 15, 2019PassState
April 15, 2019PassState
June 25, 2018PassState
June 25, 2018PassState
April 16, 2018PassState
April 16, 2018PassState
April 16, 2018PassState

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 110070205303 there.

Nearby on the register

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

What this page shows

This page covers the Clean Air Act compliance record for ET GATHERING PROCESSING LLC / RELAY CREEK COMPRESSOR STATION in Greenfield, OK. It lists 18 Compliance evaluations since January 1, 2017, 0 High-priority violations since January 1, 2017, and 0 Formal enforcement actions since January 1, 2017. The page gives the ICIS-AIR ID OK0000004001100380 and the EPA facility registry ID 110070205303.