HL incident on 2013-08-13 — CO

Operator
Markwest Liberty Midstream & Resources, Llc
Cause
Natural Force Damage
Commodity
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$1,500,000
Incident datetime
2013-08-13 14:15
Report number
Location
CO
Narrative
The 10in ft. Beeler to mobley pipeline was damaged by a land slip which caused a leak. The pipeline was shut-in and the section was isolated by the valves mlv-3 & mlv-4.
Detailed record list
Report Received Date
2013-08-13 00:00:00
Iyear
2013
Report Number
20130276
Supplemental Number
20004
Report Type
Supplemental
Operator Id
Name
Markwest Liberty Midstream & Resources, Llc
Operator Street Address
1515 Arapahoe Street Tower 1, Suite 1600
Operator City Name
Denver
Operator State Abbreviation
CO
Operator Postal Code
80202
Local Datetime
2013-08-13 14:15:00
Location Latitude
Location Longitude
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid)
Unintentional Release Bbls
11405
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Contractor Working For The Operator
Incident Identified Datetime
2013-08-13 14:15:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2013-08-13 14:15:00
Restart Datetime
2013-10-10 12:00:00
On Site Datetime
2013-08-13 14:15:00
Nrc Rpt Datetime
2013-08-13 16:02:00
Nrc Rpt Num
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Automatic
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Mobley To Ft. Beeler
Onshore State Abbreviation
Wv
Onshore Postal Code
26581
Onshore City Name
Littleton
Onshore County Name
Wetzel
Designated Location
Milepost/valve Station
Designated Name
Mlv-3 & Mlv-4
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
65
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
10.75
Pipe Wall Thickness
0.5
Pipe Smys
52000
Pipe Specification
Api
Pipe Seam Type
Erw - High Frequency
Pipe Manufacturer
Tenaris (Domestic)
Pipe Coating Type
Fusion Bonded Epoxy(Fbe)
Installation Year
2012
Manufactured Year
2011
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Other
Leak Type Other
Land Slip
Wildlife Impact Ind
Yes
Fish Aquatic Impact Ind
Yes
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Surface Water Remed Ind
Yes
Water Contam Ind
Yes
Surface Contam Ind
Yes
Amount Released
899
Rel Water Name
Rocky Run
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
517350
Est Cost Prop Damage
1500000
Est Cost Emergency
400000
Est Cost Environmental
2500000
Est Cost Other
0
Prpty
4917350
Accident Psig
950
Mop Psig
2220
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
39653
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
Yes
Cpm In Place Ind
No
Investigation Status
No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate)
Investigation Status Details
The investigation indicated that the land slip caused the pipeline failure.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Natural Force Damage
Cause Details
Heavy Rains/floods
Natural Force Type
Heavy Rains/floods
Heavy Rains Subtype
Mudslide
Nf Extreme Weather Ind
Yes
Nf Other Ind
Yes
Nf Extreme Weather Details
Unusually Heavy Rain
Preparer Name
M*** C*****
Preparer Title
Senior Pipeline Integrity Engineer
Preparer Email
M******@m*******.com
Preparer Telephone
303.246.6842
Preparer Fax
303.573.4954
Prepared Date
2014-12-19 00:00:00
Authorizer Name
M*** C*****
Authorizer Telephone
303.246.6842
Authorizer Title
Senior Pipeline Integrity Engineer
Authorizer Email
M******@m*******.com
Narrative
The 10in ft. Beeler to mobley pipeline was damaged by a land slip which caused a leak. The pipeline was shut-in and the section was isolated by the valves mlv-3 & mlv-4.
Report Received Date 2013-08-13 00:00:00
Iyear 2013
Report Number 20130276
Supplemental Number 20004
Report Type Supplemental
Operator Id 32412 PHMSA Enforcement
Name Markwest Liberty Midstream & Resources, Llc
Operator Street Address 1515 Arapahoe Street Tower 1, Suite 1600
Operator City Name Denver
Operator State Abbreviation CO
Operator Postal Code 80202
Local Datetime 2013-08-13 14:15:00
Location Latitude 39.70808 Google Maps OpenStreetMap
Location Longitude -80.56138 Google Maps OpenStreetMap
Commodity Released Type Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid)
Unintentional Release Bbls 11405
Intentional Release Bbls 0
Recovered Bbls 0
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Accident Identifier Local Operating Personnel, Including Contractors
Operator Type Contractor Working For The Operator
Incident Identified Datetime 2013-08-13 14:15:00
System Part Involved Onshore Pipeline, Including Valve Sites
On Off Shore Onshore
Shutdown Due Accident Ind Yes
Shutdown Datetime 2013-08-13 14:15:00
Restart Datetime 2013-10-10 12:00:00
On Site Datetime 2013-08-13 14:15:00
Nrc Rpt Datetime 2013-08-13 16:02:00
Nrc Rpt Num 1056999 NRC Report How to search
Ignite Ind No
Explode Ind No
Upstream Valve Type Ind Automatic
Downstream Valve Type Ind Manual
Num Pub Evacuated 0
Pipe Fac Name Mobley To Ft. Beeler
Onshore State Abbreviation Wv
Onshore Postal Code 26581
Onshore City Name Littleton
Onshore County Name Wetzel
Designated Location Milepost/valve Station
Designated Name Mlv-3 & Mlv-4
Federal No
Location Type Pipeline Right-Of-Way
Incident Area Type Underground
Incident Area Subtype Under Soil
Depth Of Cover 65
Crossing No
Pipe Facility Type Intrastate
Item Involved Pipe
Pipe Type Pipe Body
Pipe Diameter 10.75
Pipe Wall Thickness 0.5
Pipe Smys 52000
Pipe Specification Api
Pipe Seam Type Erw - High Frequency
Pipe Manufacturer Tenaris (Domestic)
Pipe Coating Type Fusion Bonded Epoxy(Fbe)
Installation Year 2012
Manufactured Year 2011
Material Involved Carbon Steel
Release Type Leak
Leak Type Other
Leak Type Other Land Slip
Wildlife Impact Ind Yes
Fish Aquatic Impact Ind Yes
Soil Contamination Yes
Long Term Assessment No
Remediation Ind Yes
Surface Water Remed Ind Yes
Water Contam Ind Yes
Surface Contam Ind Yes
Amount Released 899
Rel Water Name Rocky Run
Could Be Hca No
Commodity Reached Hca No
Est Cost Oper Paid 0
Est Cost Gas Released 517350
Est Cost Prop Damage 1500000
Est Cost Emergency 400000
Est Cost Environmental 2500000
Est Cost Other 0
Prpty 4917350
Accident Psig 950
Mop Psig 2220
Accident Pressure Pressure Did Not Exceed Mop
Pressure Restriction Ind No
Length Segment Isolated 39653
Internal Inspection Ind Yes
Operation Complications Ind No
Pipeline Function > 20% Smys Regulated Transmission
Scada In Place Ind Yes
Scada Operating Ind Yes
Scada Functional Ind Yes
Scada Detection Ind No
Scada Conf Ind Yes
Cpm In Place Ind No
Investigation Status No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate)
Investigation Status Details The investigation indicated that the land slip caused the pipeline failure.
Employee Drug Test Ind No
Contractor Drug Test Ind No
Cause Natural Force Damage
Cause Details Heavy Rains/floods
Natural Force Type Heavy Rains/floods
Heavy Rains Subtype Mudslide
Nf Extreme Weather Ind Yes
Nf Other Ind Yes
Nf Extreme Weather Details Unusually Heavy Rain
Preparer Name M*** C*****
Preparer Title Senior Pipeline Integrity Engineer
Preparer Email M******@m*******.com
Preparer Telephone 303.246.6842
Preparer Fax 303.573.4954
Prepared Date 2014-12-19 00:00:00
Authorizer Name M*** C*****
Authorizer Telephone 303.246.6842
Authorizer Title Senior Pipeline Integrity Engineer
Authorizer Email M******@m*******.com
Narrative The 10in ft. Beeler to mobley pipeline was damaged by a land slip which caused a leak. The pipeline was shut-in and the section was isolated by the valves mlv-3 & mlv-4.

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