FRS Facility Detail Report


MARKWEST ENERGY APPALACHIA, LLC, COBB CS

EPA Registry Id: 110020046485
STATE ROUTE 4
CLENDENIN, WV 25045


The facility locations displayed
come from the FRS Spatial
Coordinates tables. They are the
best representative locations for
the displayed facilities based on
the accuracy of the collection
method and quality assurance
checks performed against each
location. The North American
Datum of 1983 is used to display
all coordinates.

Environmental Interests

Information System System Facility Name Information System Id/Report Link Environmental Interest Type Data Source Last Updated Date Supplemental Environmental Interests:
EMISSION INVENTORY SYSTEM (EIS)
MARKWEST HYDROCARBON - COBB FACILITY 6898911 HAZARDOUS AIR POLLUTANT MAJOR EIS 08/26/2021
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
COBB LIQUIDS EXTRACTION PLANT WVRNE0043 ICIS-NPDES NON-MAJOR ICIS 03/28/2016 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
MARKWEST ENERGY WVG611212 ICIS-NPDES NON-MAJOR ICIS
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
RISK MANAGEMENT PLAN
MARKWEST ENERGY APPALACHIA, LLC- COBB FACILITY 100000180225 RMP REPORTER RMP
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
COBB LIQUIDS EXTRACTION PLANT WVRNE0043 STORM WATER INDUSTRIAL ICIS 03/28/2016 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
ICIS-AIR (AIR)
MARKWEST ENERGY APPALACHIA, LLC, COBB CS WV00003900483 AIR MINOR ICIS 04/01/2015
AIR FACILITY SYSTEM
MARKWEST ENERGY APPALACHIA, LLC 5403900483 AIR MINOR (OPERATING) AIRS/AFS 09/28/2010
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
MARKWEST ENERGY WVG611212 STORM WATER INDUSTRIAL ICIS
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
INTEGRATED COMPLIANCE INFORMATION SYSTEM MARK WEST ENERGY COBB FACILIT 1800033486 ENFORCEMENT/COMPLIANCE ACTIVITY ICIS 11/15/2009

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
AIRS/AFS
4922
NATURAL GAS TRANSMISSION

NPDES
1321
NATURAL GAS LIQUIDS

NPDES
1321
NATURAL GAS LIQUIDS

AIR
2819
INDUSTRIAL INORGANIC CHEMICALS, NOT ELSEWHERE CLASSIFIED

Facility Codes and Flags

EPA Region: 03
Duns Number: 829207807
Congressional District Number: 02
Legislative District Number:
HUC Code/Watershed: 05050007 / ELK
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
MARK WEST ENERGY COBB FACILIT ICIS
COBB LIQUIDS EXTRACTION PLANT NPDES
MARKWEST HYDROCARBON, INC. AIRS/AFS
MARKWEST HYDROCARBON - COBB FACILITY EIS
MARKWEST ENERGY ICIS
MARKWEST ENERGY APPALACHIA, LLC- COBB FACILITY RMP REPORTING FORM
MARKWEST ENERGY APPALACHIA, LLC FRS

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
PREPARER
NATHAN WHELDON
RMP


PREPARER
NATHAN WHELDON
RMP
View
PREPARER
NATHAN WHELDON
RMP
View
PREPARER
NATHAN WHELDON
RMP
View
OWNER/OPERATOR
MARKWEST HYDROCARBON, LLC 829207807
RMP


OWNER
MARKWEST ENERGY APPALACHIA, LLC
NPDES
View
OWNER
MARKWEST ENERGY APPALACHIA LLC
NPDES
View

National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
RMP 21113

AIR 211112 NATURAL GAS LIQUID EXTRACTION.
AIRS/AFS 486210 PIPELINE TRANSPORTATION OF NATURAL GAS.
RMP 211112 NATURAL GAS LIQUID EXTRACTION.
EIS 211130

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
PREPARER 1515 ARAPAHOE ST. DENVER CO 802022137 RMP
PREPARER 1515 ARAPAHOE ST DENVER CO 80202-3150 RMP
OWNER PO BOX 932 CLENDENIN WV 25045-0932 NPDES
PREPARER 1515 ARAPAHOE ST DENVER CO 80202 RMP

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
PRIMARY FACILITY SITE CONTACT
CLIFF BURDETTE


AIR


Query executed on: OCT-14-2025