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ICIS-AIR PA000747437

MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA, Burgettstown, PA: Clean Air Act compliance record, inspections, violations, penalties

MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA is on EPA’s ICIS-AIR register at 320 PT PLEASANT RD, Burgettstown in Washington County, Pennsylvania: operating status operating, emissions classification synthetic minor source, current violation status “No Violation Identified”. Washington County is on EPA’s Green Book list of areas that do not meet a national air quality standard.

What stands out

  • The newest of the 41 events on file is a compliance evaluation dated April 22, 2026.
  • Its events on file run from April 19, 2017 through April 22, 2026.
  • Of the 2 formal enforcement actions on file, 2 carry a filed penalty above zero. The largest on file is $385,000, filed July 9, 2018.
  • Of its 17 compliance evaluations on file, 4 are a full compliance evaluation.
  • The register holds 223 air-emissions sources in Washington County, Pennsylvania.

Every line is computed by formula from the record’s stored figures; nothing is estimated.

Identity

Facility as filedMARKWEST LIBERTY MIDSTREAM/SMITH COMP STA
ICIS-AIR IDPA000747437
EPA facility registry ID110056295021
Operating statusOperating
Emissions classificationSynthetic minor source
Current violation status (HPV field)No Violation Identified
Address320 PT PLEASANT RD, Burgettstown, PA 15021
CountyWashington County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Oil and gas extraction (NAICS 2111)
SIC code1311
EPA region03

Programs and pollutants

The program, pollutant and Title V files are not loaded: what this page covers.

Compliance evaluations

DateWhat EPA recordedAgencyPrograms
April 22, 2026PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 16, 2025PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 30, 2024FCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 9, 2024PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 26, 2023PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
July 6, 2022PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
January 13, 2022PCE On-Site Monitoring/SamplingStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
December 3, 2021FCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 29, 2021PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
June 11, 2020FCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 21, 2020PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 29, 2019PCE On-Site Monitoring/SamplingStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 1, 2019PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 30, 2019PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
March 30, 2018PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
May 16, 2017FCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 21, 2017PCE Off-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

What high-priority and federally reportable violations mean.

DateWhat EPA recordedAgencyPrograms
October 1, 2019Earliest FRV determinationStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Enforcement and penalties

2 of the formal enforcement actions carry a penalty filed above zero. How a penalty is shown.

DateWhat EPA recordedAgencyPenalty, as filed
April 9, 2020Administrative OrderState$14,600
July 9, 2018Civil Judicial ActionU.S. EPA$385,000

Informal enforcement

DateWhat EPA recordedAgency
October 2, 2019Notice of ViolationState

Stack tests

DateWhat EPA recordedAgency
March 27, 2026PassState
March 28, 2025PassState
October 3, 2024PassState
March 28, 2024PassState
October 11, 2023PassState
May 19, 2023PassState
April 4, 2023PassState
October 13, 2022PassState
September 8, 2022PassState
April 5, 2022PassState
October 18, 2021PassState
April 6, 2021PassState
October 9, 2020PassState
April 7, 2020PassState
October 11, 2019PassState
April 10, 2019PassState
November 8, 2018PassState
April 11, 2018PassState
November 9, 2017PassState
April 19, 2017PassState

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Free from EPA: Detailed Facility Report, ECHO Notify (registry ID 110056295021).

Other air sources in Pennsylvania beside MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA

EPA ICIS-AIR download, loaded September 14, 2026.