# MPLX LP Et. Al. (MarkWest)-Gas Processing LDAR Consent Decree-(Non-Lead, National Case)
> **Judicial** · FY2018 · — · Final Order With Penalty
## Case
- **Activity ID:** `3601502686`
- **Case Number:** 06-2018-3400
- **Type:** Judicial
- **Lead:** EPA
- **Outcome:** Final Order With Penalty
- **Penalty assessed:** —
- **Cost recovery:** —
- **Compliance action $:** —
- **Multimedia (multi-env):** —
## Defendants
- MPLX LP (complaint) (settlement)
- MarkWest Buffalo Creek Gas Company LLC (complaint) (settlement)
- MarkWest Energy East Texas Gas Company LLC (complaint) (settlement)
- MarkWest Energy West Texas Gas Company LLC (complaint) (settlement)
- MarkWest Hydrocarbon LLC (complaint) (settlement)
- MarkWest Javelina Company LLC (complaint) (settlement)
- MarkWest Liberty Bluestone LLC (complaint) (settlement)
- MarkWest Liberty Midstream and Resources LLC (complaint) (settlement)
- MarkWest Ohio Fractionation Company LLC (complaint) (settlement)
- MarkWest Oklahoma Gas Company LLC (complaint) (settlement)
- MarkWest Utica EMG LLC (complaint) (settlement)
- Ohio Condensate Company LLC (complaint) (settlement)
## Summary

Region 5 is the lead region in this global settlement involving Regions 3, 4, 5, and 6, the Oklahoma Department of Environmental Quality (ODEQ), the Pennsylvania Department of Environmental Protection (PADEP), and the State of West Virginia, on behalf of the West Virginia Department of Environmental Protection. Region 6 facilities include Arapaho and Buffalo Creek gas processing plants in Oklahoma, and the Javelina, Carthage, Carthage East, and Hidalgo facilities in Texas. The Oklahoma Department of Environmental Quality is participating in the global settlement process. A proposed Consent Decree has been agreed to and signed by the Defendants. The settlement terms include corrective action requirements to bring the facilities into compliance with certain NSPS requirements; a penalty; mitigation projects; and, a Supplemental Environmental Project (SEP).

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*Source: [EPA ECHO](https://echo.epa.gov/) · AI Analytics · CC0 1.0*