Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2022-11-02 — TX
Operator
Enbridge Energy, Limited Partnership
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$138,312
Incident datetime
2022-11-02 12:25
Report number
Location
TX
Narrative
On november 2, 2022, at approximately 12:25 pm cdt, enbridge technician found product weeping from the valve bonnet of valve 0995.90-4-v-1 at the deer river station. An estimated 2 gallons of crude oil was released onto the gravel below the valve. The edmonton control center was notified, and line 4 was shut down. Product on the valve body was cleaned up and impacted soil removed and properly disposed of. Containment was placed under the valve and the area was monitored while plans were developed for the repair. It was determined at 4:00 pm cdt that the cost of the repair would exceed $50,000 due to drain up volumes. The nrc was notified at 4:32 pm cdt (nrc #1351572). The bonnet o-ring was replaced, and the line was returned to service. The 48-hour nrc update was made on november 4, 2022 at 1:55 pm cdt (nrc #1351733). Approximately 10 yards of contaminated soil was removed from the release site. The failed o-ring was analyzed by a third-party vendor as part of the investigation, and it was determined that the cause was due to improper installation. Once the bonnet had been separated from the valve body, it was observed that the o-ring seal was severed and protruding into the valve body indicating that the o-ring slipped out during the installation. The valve manufacturer has changed the design of this o-ring seal and seat configuration to provide a channel for the o-ring to rest in. An o-ring retainer plate is recommended by the manufacturer for future o-ring replacements. Enbridge will include this o-ring retainer for future o-ring replacements on valves of this vintage. The actual volume released at deer river station was 0.05 barrels of crude oil. The PHMSA portal does not recognize volumes less than 0.1 barrels therefore that is the volume entered.
Detailed record list
Report Received Date
2022-12-01 00:00:00
Iyear
2022
Report Number
20220267
Supplemental Number
37401
Report Type
Original Final
Operator Id
11169
Name
Enbridge Energy, Limited Partnership
Operator Street Address
915 N Eldridge Parkway, Suite 1100
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77079
Local Datetime
2022-11-02 12:25:00
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
47.325144
Location Longitude
-93.764431
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.1
Recovered Bbls
0.1
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2022-11-02 12:25:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2022-11-02 12:34:00
Restart Datetime
2022-11-03 16:14:00
Communication State Fed Ind
No
On Site Datetime
2022-11-02 12:25:00
Confirmed Discovery Datetime
2022-11-02 16:00:00
Nrc Rpt Datetime
2022-11-02 16:32:00
Nrc Rpt Num
1351572
Additional Nrc Report Numbers
1351733
Ignite Ind
No
Notify Qualified Indiv Ind
No
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Deer River Station
Segment Name
995.90-4-V
Onshore State Abbreviation
Mn
Onshore Postal Code
56636
Onshore City Name
Deer River
Onshore County Name
Itasca
Designated Location
Milepost
Designated Name
995.9
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Valve
Valve Type
Mainline
Valve Mainline Type
Gate
Valve Manufacturer
M&j
Installation Year
1972
Manufactured Year
1972
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
4
Est Cost Prop Damage
138312
Est Cost Emergency
350
Est Cost Environmental
15000
Est Cost Other
0
Prpty
153666
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
181
Mop Psig
626
Mop Cfr Section
Subpart E Pressure Test �195.406(A)(3)
Maop Established Date
1972-10-24 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction 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
No
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf Ind
No
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest Schedule Ind
Yes
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
O-Ring
Additional Installation Ind
Yes
Preparer Name
S**** S****
Preparer Title
Sr Compliance Analyst
Preparer Email
S**********@e*******.com
Preparer Telephone
715-395-3620
Prepared Date
2022-12-01 00:00:00
Authorizer Name
L*** S**********
Authorizer Telephone
715-394-1584
Authorizer Title
Supervisor Us Regulatory Compliance
Authorizer Email
L***************@e*******.com
Narrative
On november 2, 2022, at approximately 12:25 pm cdt, enbridge technician found product weeping from the valve bonnet of valve 0995.90-4-v-1 at the deer river station. An estimated 2 gallons of crude oil was released onto the gravel below the valve. The edmonton control center was notified, and line 4 was shut down. Product on the valve body was cleaned up and impacted soil removed and properly disposed of. Containment was placed under the valve and the area was monitored while plans were developed for the repair. It was determined at 4:00 pm cdt that the cost of the repair would exceed $50,000 due to drain up volumes. The nrc was notified at 4:32 pm cdt (nrc #1351572). The bonnet o-ring was replaced, and the line was returned to service. The 48-hour nrc update was made on november 4, 2022 at 1:55 pm cdt (nrc #1351733). Approximately 10 yards of contaminated soil was removed from the release site. The failed o-ring was analyzed by a third-party vendor as part of the investigation, and it was determined that the cause was due to improper installation. Once the bonnet had been separated from the valve body, it was observed that the o-ring seal was severed and protruding into the valve body indicating that the o-ring slipped out during the installation. The valve manufacturer has changed the design of this o-ring seal and seat configuration to provide a channel for the o-ring to rest in. An o-ring retainer plate is recommended by the manufacturer for future o-ring replacements. Enbridge will include this o-ring retainer for future o-ring replacements on valves of this vintage. The actual volume released at deer river station was 0.05 barrels of crude oil. The PHMSA portal does not recognize volumes less than 0.1 barrels therefore that is the volume entered.
| Report Received Date | 2022-12-01 00:00:00 |
|---|---|
| Iyear | 2022 |
| Report Number | 20220267 |
| Supplemental Number | 37401 |
| Report Type | Original Final |
| Operator Id | 11169 PHMSA Enforcement |
| Name | Enbridge Energy, Limited Partnership |
| Operator Street Address | 915 N Eldridge Parkway, Suite 1100 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77079 |
| Local Datetime | 2022-11-02 12:25:00 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 47.325144 Google Maps OpenStreetMap |
| Location Longitude | -93.764431 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.1 |
| Recovered Bbls | 0.1 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2022-11-02 12:25:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2022-11-02 12:34:00 |
| Restart Datetime | 2022-11-03 16:14:00 |
| Communication State Fed Ind | No |
| On Site Datetime | 2022-11-02 12:25:00 |
| Confirmed Discovery Datetime | 2022-11-02 16:00:00 |
| Nrc Rpt Datetime | 2022-11-02 16:32:00 |
| Nrc Rpt Num | 1351572 NRC Report How to search |
| Additional Nrc Report Numbers | 1351733 |
| Ignite Ind | No |
| Notify Qualified Indiv Ind | No |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Deer River Station |
| Segment Name | 995.90-4-V |
| Onshore State Abbreviation | Mn |
| Onshore Postal Code | 56636 |
| Onshore City Name | Deer River |
| Onshore County Name | Itasca |
| Designated Location | Milepost |
| Designated Name | 995.9 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Valve |
| Valve Type | Mainline |
| Valve Mainline Type | Gate |
| Valve Manufacturer | M&j |
| Installation Year | 1972 |
| Manufactured Year | 1972 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 4 |
| Est Cost Prop Damage | 138312 |
| Est Cost Emergency | 350 |
| Est Cost Environmental | 15000 |
| Est Cost Other | 0 |
| Prpty | 153666 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 181 |
| Mop Psig | 626 |
| Mop Cfr Section | Subpart E Pressure Test �195.406(A)(3) View CFR 49 §192 |
| Maop Established Date | 1972-10-24 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction 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 | No |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf Ind | No |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| Invest Schedule Ind | Yes |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | O-Ring |
| Additional Installation Ind | Yes |
| Preparer Name | S**** S**** |
| Preparer Title | Sr Compliance Analyst |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 715-395-3620 |
| Prepared Date | 2022-12-01 00:00:00 |
| Authorizer Name | L*** S********** |
| Authorizer Telephone | 715-394-1584 |
| Authorizer Title | Supervisor Us Regulatory Compliance |
| Authorizer Email | L***************@e*******.com |
| Narrative | On november 2, 2022, at approximately 12:25 pm cdt, enbridge technician found product weeping from the valve bonnet of valve 0995.90-4-v-1 at the deer river station. An estimated 2 gallons of crude oil was released onto the gravel below the valve. The edmonton control center was notified, and line 4 was shut down. Product on the valve body was cleaned up and impacted soil removed and properly disposed of. Containment was placed under the valve and the area was monitored while plans were developed for the repair. It was determined at 4:00 pm cdt that the cost of the repair would exceed $50,000 due to drain up volumes. The nrc was notified at 4:32 pm cdt (nrc #1351572). The bonnet o-ring was replaced, and the line was returned to service. The 48-hour nrc update was made on november 4, 2022 at 1:55 pm cdt (nrc #1351733). Approximately 10 yards of contaminated soil was removed from the release site. The failed o-ring was analyzed by a third-party vendor as part of the investigation, and it was determined that the cause was due to improper installation. Once the bonnet had been separated from the valve body, it was observed that the o-ring seal was severed and protruding into the valve body indicating that the o-ring slipped out during the installation. The valve manufacturer has changed the design of this o-ring seal and seat configuration to provide a channel for the o-ring to rest in. An o-ring retainer plate is recommended by the manufacturer for future o-ring replacements. Enbridge will include this o-ring retainer for future o-ring replacements on valves of this vintage. The actual volume released at deer river station was 0.05 barrels of crude oil. The PHMSA portal does not recognize volumes less than 0.1 barrels therefore that is the volume entered. |
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