Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2024-06-28 — TX
Operator
Dcp Midstream, Lp
Cause
Other Incident Cause
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$1,628
Incident datetime
2024-06-28 00:00 UTC
Report number
Location
TX
Narrative
Extended operation of relief valve below pipeline maop due to increased gas pressure from maintenance pigging operations. Following release psv tested and confirmed correct operation. Project initiated to add flow sensors to the relief valve and evaluate control logic for slug catcher inlet control valves to prevent future releases.
Detailed record list
Report Received Date
2024-06-28 00:00:00
Iyear
2024
Report Number
20240085
Supplemental Number
39727
Report Type
Original Final
Operator Id
31130
Name
Dcp Midstream, Lp
Operator Street Address
2331 Citywest Blvd. Hq-08-S812-02
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77042
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
36.467796
Location Longitude
-101.23282
Nrc Rpt Num
1400671
Additional Nrc Report Numbers
1400837
Commodity Released Type
Natural Gas
Unintentional Release
23060
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Status When Identified
Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind
No
Shutdown Explain
Release From Slug Catcher Relief Valve Did Not Require Shutdown.
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Ignite Ind
No
Upstream Action Taken
Valve Closure
Downstream Action Taken
Valve Closure
Num Pub Evacuated
0
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
79040
Onshore City Name
Not Within A Municipality
Onshore County Name
Hansford, Tx
Designated Location
Not Applicable
Pipe Fac Name
Px-2
Segment Name
24" Hinshaw Pipeline
Federal
No
Location Type
Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Other
Item Involved Details
Slug Catcher Relief Valve
Installation Year
Unknown
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Slug Catcher Relief Valve Actuation.
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
509
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
67335
Est Cost Intentional Release
0
Est Cost Prop Damage
1628
Est Cost Emergency
1000
Est Cost Other
0
Gas Cost In Mcf
2.92
Prpty
69963
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Wildlife Impact Ind
No
Accident Psig
787
Gas Flow In Pipe In Mcf
2482560
Mop Psig
815
Mop Cfr Section
Other
Mop Cfr Section Details
Vessel Maop Established By Manufacturer.
Maop Established Date
2023-06-29 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Automatic
Length Segment Isolated
1
Internal Inspection Ind
No
Other Inspection Ind
Yes
Internal Inspection Details
Incident Occurred On Relief Valve.
Operation Complications Ind
Yes
Other Complications Ind
Yes
Inspect Comp Details
Incident Occurred On Relief Valve.
Pipeline Function
Type C Gathering
Scada In Place Ind
No
Accident Identifier
Other
Accident Details
Notification From Panhandle Eastern Gas Control
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Incident Cause
Cause Details
Miscellaneous
Other Type
Miscellaneous
Misc Details
Extended Operation Of Relief Valve Below Pipeline Maop Due To Increased Gas Pressure From Maintenance Pigging Operations.
Preparer Name
G****** M*****
Preparer Title
Compliance Specialist
Preparer Email
G*************@p**.com
Preparer Telephone
4052157767
Local Contact Name
G****** M*****
Local Contact Email
G*************@p**.com
Local Contact Telephone
4052157767
Authorizer Name
M****** P*****
Authorizer Title
Director Dot Operations Compliance
Authorizer Telephone
8327650325
Authorizer Email
M*************@p**.com
Narrative
Extended operation of relief valve below pipeline maop due to increased gas pressure from maintenance pigging operations. Following release psv tested and confirmed correct operation. Project initiated to add flow sensors to the relief valve and evaluate control logic for slug catcher inlet control valves to prevent future releases.
| Report Received Date | 2024-06-28 00:00:00 |
|---|---|
| Iyear | 2024 |
| Report Number | 20240085 |
| Supplemental Number | 39727 |
| Report Type | Original Final |
| Operator Id | 31130 PHMSA Enforcement |
| Name | Dcp Midstream, Lp |
| Operator Street Address | 2331 Citywest Blvd. Hq-08-S812-02 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77042 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 36.467796 Google Maps OpenStreetMap |
| Location Longitude | -101.23282 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1400671 NRC Report How to search |
| Additional Nrc Report Numbers | 1400837 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 23060 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Status When Identified | Normal Operation, Includes Pauses During Maintenance |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Release From Slug Catcher Relief Valve Did Not Require Shutdown. |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Operator |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Downstream Action Taken | Valve Closure |
| Num Pub Evacuated | 0 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79040 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Hansford, Tx |
| Designated Location | Not Applicable |
| Pipe Fac Name | Px-2 |
| Segment Name | 24" Hinshaw Pipeline |
| Federal | No |
| Location Type | Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Other |
| Item Involved Details | Slug Catcher Relief Valve |
| Installation Year | Unknown |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Slug Catcher Relief Valve Actuation. |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 509 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Did Occur In Mca Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 67335 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 1628 |
| Est Cost Emergency | 1000 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 2.92 |
| Prpty | 69963 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Wildlife Impact Ind | No |
| Accident Psig | 787 |
| Gas Flow In Pipe In Mcf | 2482560 |
| Mop Psig | 815 |
| Mop Cfr Section | Other View CFR 49 §192 |
| Mop Cfr Section Details | Vessel Maop Established By Manufacturer. |
| Maop Established Date | 2023-06-29 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Gas Required Odorized Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Automatic |
| Length Segment Isolated | 1 |
| Internal Inspection Ind | No |
| Other Inspection Ind | Yes |
| Internal Inspection Details | Incident Occurred On Relief Valve. |
| Operation Complications Ind | Yes |
| Other Complications Ind | Yes |
| Inspect Comp Details | Incident Occurred On Relief Valve. |
| Pipeline Function | Type C Gathering |
| Scada In Place Ind | No |
| Accident Identifier | Other |
| Accident Details | Notification From Panhandle Eastern Gas Control |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the incident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Incident Cause |
| Cause Details | Miscellaneous |
| Other Type | Miscellaneous |
| Misc Details | Extended Operation Of Relief Valve Below Pipeline Maop Due To Increased Gas Pressure From Maintenance Pigging Operations. |
| Preparer Name | G****** M***** |
| Preparer Title | Compliance Specialist |
| Preparer Email | G*************@p**.com |
| Preparer Telephone | 4052157767 |
| Local Contact Name | G****** M***** |
| Local Contact Email | G*************@p**.com |
| Local Contact Telephone | 4052157767 |
| Authorizer Name | M****** P***** |
| Authorizer Title | Director Dot Operations Compliance |
| Authorizer Telephone | 8327650325 |
| Authorizer Email | M*************@p**.com |
| Narrative | Extended operation of relief valve below pipeline maop due to increased gas pressure from maintenance pigging operations. Following release psv tested and confirmed correct operation. Project initiated to add flow sensors to the relief valve and evaluate control logic for slug catcher inlet control valves to prevent future releases. |
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