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Clean Air Act stationary source · ICIS-AIR OK0000004002900021

MARKWEST PIONEER LLC / ARKOMA COMPRESSOR STATION, Coalgate, OK: Clean Air Act compliance record, inspections, violations, penalties

MARKWEST PIONEER LLC / ARKOMA COMPRESSOR STATION, at 7 MILES NNW OF, Coalgate in Coal 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 filedMARKWEST PIONEER LLC / ARKOMA COMPRESSOR STATION
ICIS-AIR IDOK0000004002900021
EPA facility registry ID110039134683
Operating statusOperating
Emissions classificationSynthetic minor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
Address7 MILES NNW OF, Coalgate, OK 74538
CountyCoal 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 MARKWEST PIONEER LLC / ARKOMA 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
April 18, 2023PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
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
March 30, 2022FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 28, 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
August 22, 2019PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 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
September 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
September 13, 2017PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 22, 2017FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards; Title V Permits

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
July 3, 2024Earliest FRV determinationStateNew Source Performance Standards
June 19, 2020Earliest 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

EPA’s informal action file holds no notice or warning for ICIS-AIR OK0000004002900021 since January 1, 2017.

Stack tests

DateWhat EPA recordedAgency
June 18, 2025PassState
June 18, 2025PassState
June 17, 2025PassState
June 17, 2025PassState
June 26, 2024PassState
June 26, 2024PassState
June 25, 2024PassState
June 25, 2024PassState
July 12, 2023PassState
July 12, 2023PassState
July 12, 2023PassState
July 12, 2023PassState
October 10, 2022PassState
October 10, 2022PassState
December 16, 2021PassState
December 16, 2021PassState
November 11, 2021PassState
October 18, 2021PassState
September 11, 2020PassState
September 3, 2020PassState
September 3, 2020PassState
September 3, 2020PassState
September 5, 2019PassState
September 5, 2019PassState
September 5, 2019PassState
September 5, 2019PassState
September 6, 2018PassState
September 6, 2018PassState
September 5, 2018PassState
September 5, 2018PassState
September 14, 2017PassState
September 14, 2017PassState
September 13, 2017PassState
September 13, 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 110039134683 there.

Nearby on the register

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

What this page shows

The page covers the Clean Air Act compliance record for MARKWEST PIONEER LLC / ARKOMA COMPRESSOR STATION in Coalgate, OK, on the ICIS-AIR register. It lists Operating status, Synthetic minor source as the emissions classification, No Violation Identified as the current violation status, 10 compliance evaluations, 0 high-priority violations and 0 formal enforcement actions since January 1, 2017.