Clean Air Act stationary source · ICIS-AIR OH0000000634005034
MARKWEST LAKE COMPRESSOR STATION, Freeport, OH: Clean Air Act compliance record, inspections, violations, penalties
- OperatingOperating status
- Minor sourceEmissions classification
- No Violation IdentifiedCurrent violation status, as filed
- 0Compliance evaluations since January 1, 2017
- 0High-priority violations since January 1, 2017
- 0Formal enforcement actions since January 1, 2017
MARKWEST LAKE COMPRESSOR STATION, at COUNTY HIGHWAY 21, Freeport in Harrison County, Ohio, is an operating 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 filed | MARKWEST LAKE COMPRESSOR STATION |
|---|---|
| ICIS-AIR ID | OH0000000634005034 |
| EPA facility registry ID | 110062746738 |
| Operating status | Operating |
| Emissions classification | Minor source |
| Current violation status (ICIS-AIR high-priority violation field) | No Violation Identified |
| Address | COUNTY HIGHWAY 21, Freeport, OH 43973 |
| County | Harrison County |
| In a nonattainment county | No (EPA Green Book) |
| Industry (NAICS) | Pipeline transportation (NAICS 4862) |
| EPA region | 05 |
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 LAKE 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
- 0Evaluations since January 1, 2017
- 0Full compliance evaluations
EPA’s compliance evaluation file holds no evaluation of ICIS-AIR OH0000000634005034 since January 1, 2017.
Violations
- 0Violation determinations since January 1, 2017
- 0Of them high-priority
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 OH0000000634005034 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 OH0000000634005034 since January 1, 2017.
Stack tests
- 120Stack tests since January 1, 2017
- 0Recorded as failed
The newest 50 of 120.
| Date | What EPA recorded | Agency |
|---|---|---|
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 12, 2026 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| March 27, 2023 | Pass | State |
| May 25, 2022 | Pass | State |
| May 25, 2022 | Pass | State |
| May 25, 2022 | Pass | State |
| March 30, 2022 | Pass | State |
| March 30, 2022 | Pass | State |
| March 30, 2022 | Pass | State |
| March 30, 2022 | Pass | State |
| March 30, 2022 | Pass | State |
| March 30, 2022 | Pass | State |
| March 7, 2022 | Pass | State |
| March 7, 2022 | Pass | State |
| March 7, 2022 | Pass | State |
| March 7, 2022 | Pass | State |
| March 7, 2022 | Pass | State |
| March 7, 2022 | Pass | State |
| April 1, 2021 | Pass | State |
| April 1, 2021 | Pass | State |
| April 1, 2021 | Pass | State |
| April 1, 2021 | Pass | State |
| April 1, 2021 | Pass | State |
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 110062746738 there.
Nearby on the register
- Air-emissions sources in Harrison County
- Every source record in Harrison County, A to Z
- Air-emissions sources in Ohio
- Every source record in Ohio, A to Z
Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.