Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2023-08-29 — MI
Operator
Dtm Appalachia Gathering, Llc
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2023-08-29 00:00 UTC
Report number
Location
MI
Narrative
Operator received a report from public of possible blowing gas at the station. Personnel were dispatched and found an on-skid relief valve was releasing gas on compressor unit #202. The compressor unit was shut down and the flow of gas was secured. The relief was replaced with another relief valve on that same day with the failed valved sent out for examination and rebuilding. The rebuilt relief valve was later re-installed on 8/01/2023.
Detailed record list
Report Received Date
2023-08-29 00:00:00
Iyear
2023
Report Number
20230081
Supplemental Number
38961
Report Type
Supplemental Final
Operator Id
39003
Name
Dtm Appalachia Gathering, Llc
Operator Street Address
500 Woodward Ave Suite 2900
Operator City Name
Detroit
Operator State Abbreviation
MI
Operator Postal Code
48226
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Latitude
39.64244465
Location Longitude
-80.2046737
Nrc Rpt Num
1374621
Additional Nrc Report Numbers
1374764
Commodity Released Type
Natural Gas
Unintentional Release
10830
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
The Failed Opp Device Was Able To Be Isolated By Shutting In A Single Compressor
Communication State Fed Ind
No
Ignite Ind
No
Num Pub Evacuated
0
On Off Shore
Onshore
Onshore State Abbreviation
Wv
Onshore Postal Code
26570
Onshore City Name
Fairview
Onshore County Name
Monongalia
Designated Location
Not Applicable
Pipe Fac Name
Dtm Appalachia Gathering
Segment Name
Hamilton Compressor Station
Federal
No
Location Type
Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Inside A Building
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Compressor Station Equipment And Piping
Item Involved
Compressor
Installation Year
Unknown
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Failure Of Internal Components In Opp Device (Pressure Relief Valve) Causing To Release Gas At Lower Than Set Point.
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
413
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
28700
Est Cost Intentional Release
0
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Other
0
Gas Cost In Mcf
2.65
Prpty
28700
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
1195
Gas Flow In Pipe In Mcf
118478
Mop Psig
1250
Mop Cfr Section
192.619(A)(2)
Maop Established Date
2019-01-11 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
No
Pipeline Function
Type C Gathering
Scada In Place Ind
No
Accident Identifier
Notification From Public
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
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Relief Valve Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Failure Of Moving/wear Parts (Spring)
Preparer Name
P****** R******
Preparer Title
Manager Codes And Compliance
Preparer Email
P**************@d**********.com
Preparer Telephone
7163276630
Local Contact Name
S**** W*********
Local Contact Email
S***************@d**********.com
Local Contact Telephone
3042762929
Authorizer Name
P***** C******
Authorizer Title
Director Codes And Regulatory
Authorizer Telephone
7347304870
Authorizer Email
P*************@d**********.com
Narrative
Operator received a report from public of possible blowing gas at the station. Personnel were dispatched and found an on-skid relief valve was releasing gas on compressor unit #202. The compressor unit was shut down and the flow of gas was secured. The relief was replaced with another relief valve on that same day with the failed valved sent out for examination and rebuilding. The rebuilt relief valve was later re-installed on 8/01/2023.
| Report Received Date | 2023-08-29 00:00:00 |
|---|---|
| Iyear | 2023 |
| Report Number | 20230081 |
| Supplemental Number | 38961 |
| Report Type | Supplemental Final |
| Operator Id | 39003 PHMSA Enforcement |
| Name | Dtm Appalachia Gathering, Llc |
| Operator Street Address | 500 Woodward Ave Suite 2900 |
| Operator City Name | Detroit |
| Operator State Abbreviation | MI |
| Operator Postal Code | 48226 |
| Time Zone | Eastern |
| Daylight Savings Ind | Yes |
| Location Latitude | 39.64244465 Google Maps OpenStreetMap |
| Location Longitude | -80.2046737 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1374621 NRC Report How to search |
| Additional Nrc Report Numbers | 1374764 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 10830 |
| 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 | The Failed Opp Device Was Able To Be Isolated By Shutting In A Single Compressor |
| Communication State Fed Ind | No |
| Ignite Ind | No |
| Num Pub Evacuated | 0 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Wv |
| Onshore Postal Code | 26570 |
| Onshore City Name | Fairview |
| Onshore County Name | Monongalia |
| Designated Location | Not Applicable |
| Pipe Fac Name | Dtm Appalachia Gathering |
| Segment Name | Hamilton Compressor Station |
| Federal | No |
| Location Type | Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Inside A Building |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Compressor Station Equipment And Piping |
| Item Involved | Compressor |
| Installation Year | Unknown |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Failure Of Internal Components In Opp Device (Pressure Relief Valve) Causing To Release Gas At Lower Than Set Point. |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 413 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Did Occur In Mca Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 28700 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 2.65 |
| Prpty | 28700 |
| 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 | 1195 |
| Gas Flow In Pipe In Mcf | 118478 |
| Mop Psig | 1250 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Maop Established Date | 2019-01-11 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Gas Required Odorized Ind | No |
| Pipeline Function | Type C Gathering |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Public |
| 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 | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Relief Valve Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Failure Of Moving/wear Parts (Spring) |
| Preparer Name | P****** R****** |
| Preparer Title | Manager Codes And Compliance |
| Preparer Email | P**************@d**********.com |
| Preparer Telephone | 7163276630 |
| Local Contact Name | S**** W********* |
| Local Contact Email | S***************@d**********.com |
| Local Contact Telephone | 3042762929 |
| Authorizer Name | P***** C****** |
| Authorizer Title | Director Codes And Regulatory |
| Authorizer Telephone | 7347304870 |
| Authorizer Email | P*************@d**********.com |
| Narrative | Operator received a report from public of possible blowing gas at the station. Personnel were dispatched and found an on-skid relief valve was releasing gas on compressor unit #202. The compressor unit was shut down and the flow of gas was secured. The relief was replaced with another relief valve on that same day with the failed valved sent out for examination and rebuilding. The rebuilt relief valve was later re-installed on 8/01/2023. |
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