Velarion Records
Follow this air source Velarion Records emails you this air source’s record, cited to the public filing, and tells you when the register changes it. Free.
We’ll email you a link to confirm. The continuous daily watch on every change is the paid alert. Unsubscribe any time.
Also free: The Pay Desk, the weekly executive pay briefing.

Clean Air Act stationary source · ICIS-AIR OK0000004008300105

SUPERIOR MIDSTREAM LLC / CASHION GAS PLANT, Cashion, OK: Clean Air Act compliance record, inspections, violations, penalties

SUPERIOR MIDSTREAM LLC / CASHION GAS PLANT, at 3 MILES E AND 2 MILES S OF, Cashion in Logan 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 “Violation w/in 1 Year”. 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 filedSUPERIOR MIDSTREAM LLC / CASHION GAS PLANT
ICIS-AIR IDOK0000004008300105
EPA facility registry ID110018856950
Operating statusOperating
Emissions classificationSynthetic minor source
Current violation status (ICIS-AIR high-priority violation field)Violation w/in 1 Year
Address3 MILES E AND 2 MILES S OF, Cashion, OK 73016
CountyLogan County
In a nonattainment countyNo (EPA Green Book)
Industry (NAICS)Oil and gas extraction (NAICS 2111)
SIC code1321
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 SUPERIOR MIDSTREAM LLC / CASHION GAS PLANT 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

The newest 50 of 53.

DateWhat EPA recordedAgencyPrograms
February 2, 2026FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 20, 2025PCE 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
June 26, 2024PCE 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 17, 2023PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 13, 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 28, 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 27, 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 7, 2022PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 17, 2022PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 17, 2022PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 2, 2022PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 2, 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 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
June 7, 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 9, 2022PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
November 18, 2021PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 22, 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 14, 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 29, 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 9, 2021FCE On-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 10, 2021PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 29, 2021PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 29, 2021PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 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
January 20, 2021PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
August 18, 2020PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 3, 2020PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 3, 2020PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 3, 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 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
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
January 6, 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 27, 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 5, 2019PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 16, 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 25, 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 18, 2019PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
July 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
April 23, 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 29, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
November 21, 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 1, 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 12, 2018PCE 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, 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 18, 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 17, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 10, 2018PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
December 27, 2017PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
November 20, 2017PCE Off-SiteStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
November 16, 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
March 27, 2026Earliest FRV determinationStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
July 3, 2024Earliest FRV determinationStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
September 7, 2021Earliest FRV determinationStateMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality 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
April 7, 2026Notice of ViolationState
October 16, 2024Notice of ViolationState
July 10, 2024Notice of ViolationState
January 10, 2017Notice of ViolationState

Stack tests

DateWhat EPA recordedAgency
September 4, 2024PassState
July 1, 2024PassState
October 19, 2022PassState
September 29, 2022PassState
July 18, 2022PassState
November 1, 2021PassState
October 18, 2021PassState
July 20, 2021PassState
November 13, 2020PassState
October 21, 2020PassState
July 29, 2020PassState
November 18, 2019PassState
October 17, 2019PassState
September 27, 2019PassState
October 24, 2018PassState
October 24, 2018PassState
October 1, 2018PassState
November 10, 2017PassState
October 31, 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.

Watch this source

One source, $99/month. A source: the register entry for a plant, refinery, kiln, generating station, or other fixed installation the agency tracks under the Clean Air Act. Choose “One source” and enter this source’s ICIS-AIR ID, OK0000004008300105.

Start the watch

How often?
  • One source — $99/month
  • One county — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

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 110018856950 there.

Nearby on the register

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

What this page shows

This page is a Velarion Records public-records register entry for the Clean Air Act stationary source SUPERIOR MIDSTREAM LLC / CASHION GAS PLANT in Cashion, OK. The page lists the ICIS-AIR ID OK0000004008300105, EPA facility registry ID 110018856950, Operating operating status, Synthetic minor source emissions classification, and a current violation status of Violation w/in 1 Year. It also lists 53 compliance evaluations, 0 high-priority violations, and 0 formal enforcement actions since January 1, 2017.