EPA v. MARKWEST ENERGY PARTNERS, L.P. (LEAD) (NATIONAL CASE)(DRUMAND STATION)

Case summary

On July 9, 2018, the U.S. District Court signed and entered the consent decree between the EPA, the Pennsylvania Department of Environmental Protection (PADEP), and MarkWest Liberty Midstream & Resources, LLC and Ohio Gathering, LLC. (MarkWest), for CAA violations at certain MarkWest natural gas compressor stations and stand-alone pigging stations in Pennsylvania and Ohio. The Decree requires that MarkWest install jumper lines to reduce emissions from high pressure pigging stations, replace existing flares at certain compressor stations, close three pigging stations, install pig ramps at approximately 200 pigging stations, and apply for state-only operating permits at certain Pennsylvania compressor stations and pigging stations to incorporate Consent Decree terms into permits. The Decree also requires that MarkWest pay a penalty of $610,000, perform supplemental environmental projects worth $2.4 million, and perform a Commonwealth Community Environmental Project. The injunctive relief is estimated to reduce VOC emissions by 981,600 pounds per year.

Defendants (1)

• MARKWEST ENERGY PARTNERS, L.P.Named in complaintNamed in settlement

Facilities (38)

• MARKWEST LIBERTY MIDSTREAM/SMITH COMP STA

  320 PT PLEASANT RD, BURGETTSTOWN, PA, 15021

  Registry ID: 110056295021

• MARKWEST LIBERTY MIDSTREAM & RESOURCES/SHAW COMP STA

  492 ARDEN RD, WASHINGTON, PA, 15301-8630

  Registry ID: 110043577466

• MARKWEST LIBERTY MIDSTREAM & RESOURCES/GODWIN COMP STA

  2158 HENDERSON AVE, WASHINGTON, PA, 15301-8640

  Registry ID: 110043577439

• JOE CAIN L&R STATION PIGGING

  345 JOE CAIN RD, BULGER, PA, 15019

  Registry ID: 110069993105

• MARKWEST LIBERTY MIDSTREAM/BRIGICH COMP STA

  340 BRIGICH RD, CANONSBURG, PA, 15317-6123

  Registry ID: 110043577475

• MARKWEST LIBERTY BLUESTONE LLC/ROYAL OAK COMP STA

  961 BROWNSDALE RD, EVANS CITY, PA, 16033

  Registry ID: 110060012604

• MARKWEST LIBERTY MIDST & RESOURCES/THREE BROTHERS COMP STA

  858 ATLASBURG RD, BURGETTSTOWN, PA, 15021-2835

  Registry ID: 110055589616

• MARKWEST LIBERTY M&R/TUPTA DAY COMP STA

  200 JOHNSON RD, WASHINGTON, PA, 15301-3258

  Registry ID: 110043577402

• AIRPORT L&R STATION PIGGING

  MIDWAY CANDOR RD, MCDONALD, PA, 15057

  Registry ID: 110069993111

• MARKWEST LIBERTY MIDSTREAM & RESOURCES/LOWRY COMP STA

  100 OAKLEAF RD, AVELLA, PA, 15312

  Registry ID: 110043577448

• DRUMAND STATION

  311 FORT CHERRY RD, MCDONALD, PA, 15057

  Registry ID: 110070226063

• MARKWEST LIBERTY MIDSTREAM/BAKER COMP STA

  151 BAKER STATION RD, WASHINGTON, PA, 15301-6443

  Registry ID: 110044799000

• ROJI HOSKINS PIGGING

  590A OLD HICKORY RIDGE RD, WASHINGTON, PA, 15301

  Registry ID: 110066827036

• MARKWEST LIBERTY MIDSTREAM & RESOURCES/NANCY STEWART

  HWY 231, MOUNT PLEASANT, PA, 15340

  Registry ID: 110043577457

• MARK WEST DRUGMAND PIGGING FACILITY

  283 FT. CHERRY RD., MCDONALD, PA, 15057

  Registry ID: 110064844290

• …and 23 more

Statutes cited

• CAA 110 — Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
• CAA 502 — Operating Permits (Title V)
• CAA 112 — Hazardous Air Pollutants
• CAA 303 — Imminent/Substantial Endangerment

Enforcement conclusions (1)

• MARKWEST ENERGY PARTNERS, L.P. (LEAD) (NATIONAL CASE)(DRUMAND STATION)entered 2018-07-09

  Primary law: CAA

  Federal penalty: $263,000 · State/local: $122,000 · SEP: $1,200,000

Timeline (7 milestones)

• 2015-09-21Referred To Dept Of Justice
• 2015-09-23Enforcement Action Data Entered
• 2018-04-23Complaint Filed With Court
• 2018-04-24Final Order Lodged
• 2018-07-09Final Order Entered
• 2025-06-13Air Resolved
• 2025-06-13Enforcement Action Closed