Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2023-10-06 — TX
Operator
Enbridge Energy, Limited Partnership
Cause
Corrosion Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$10,000
Incident datetime
2023-10-06 00:00 UTC
Report number
Location
TX
Narrative
On september 9, 2023, at 2:09 pm edt the edmonton control center received a building leak detection alarm at the marysville metering station. The control center notified operations personnel of the alarm and a field technician was dispatched to the station. The station isolation command was sent, and marysville metering station was fully shut down and isolated at 2:14 pm edt. At 2:30 pm edt field technician arrived at the station and discovered approximately 25 gallons of crude oil had been released inside the building. The source of the release was confirmed to be a pinhole on the underside of the drain line of strainer vessel 3 on the line 5 meter skid. All released product was contained in the concrete secondary containment beneath the meter skid. The meter was isolated and drained, and product was immediately cleaned up. The cause of the release was identified as internal corrosion due to low/no flow of product in the drain line. The drain line has been removed and blinded off. The meter is currently locked out until repairs can be made at a later date.
Detailed record list
Report Received Date
2023-10-06 00:00:00
Iyear
2023
Report Number
20230237
Supplemental Number
38853
Report Type
Supplemental 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
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Latitude
42.9013
Location Longitude
-82.50885
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.6
Recovered Bbls
0.6
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations)
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
Communication State Fed Ind
No
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Notify Qualified Indiv Ind
No
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Marysville Metering Station
Segment Name
Line 5 Meter 3
Onshore State Abbreviation
Mi
Onshore Postal Code
48079
Onshore City Name
Marysville
Onshore County Name
St. Clair
Designated Location
Milepost
Designated Name
1732.71
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Inside A Building
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Drain Lines
Installation Year
1992
Manufactured Year
1992
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Wildlife Impact Ind
No
Soil Contamination
No
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
52
Est Cost Prop Damage
10000
Est Cost Emergency
5000
Est Cost Environmental
0
Est Cost Other
0
Prpty
15052
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
173
Mop Psig
720
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
1993-03-26 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
Yes
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 No Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
Internal Corrosion
Internal External
Internal Corrosion
Int Visual Exam Results
Localized Pitting
Int Other Corrosion Ind
Yes
Int Corrosion Type Details
Low/no Flow Conditions
Int Field Exam Basis Ind
Yes
Int Low Point Pipe Loc Ind
Yes
Corrosion Inhibitors
No
Corrosion Lining
No
Cleaning Dewatering
Not Applicable - Not Mainline Pipe
Corrosion Coupons
Not Applicable - Not Mainline Pipe
Preparer Name
S**** S****
Preparer Title
Advisor Regulatory Compliance
Preparer Email
S**********@e*******.com
Preparer Telephone
7153953620
Prepared Date
2023-11-28 00:00:00
Authorizer Name
L*** S**********
Authorizer Telephone
7153941584
Authorizer Title
Supervisor Regulatory Affairs Compliance
Authorizer Email
L***************@e*******.com
Narrative
On september 9, 2023, at 2:09 pm edt the edmonton control center received a building leak detection alarm at the marysville metering station. The control center notified operations personnel of the alarm and a field technician was dispatched to the station. The station isolation command was sent, and marysville metering station was fully shut down and isolated at 2:14 pm edt. At 2:30 pm edt field technician arrived at the station and discovered approximately 25 gallons of crude oil had been released inside the building. The source of the release was confirmed to be a pinhole on the underside of the drain line of strainer vessel 3 on the line 5 meter skid. All released product was contained in the concrete secondary containment beneath the meter skid. The meter was isolated and drained, and product was immediately cleaned up. The cause of the release was identified as internal corrosion due to low/no flow of product in the drain line. The drain line has been removed and blinded off. The meter is currently locked out until repairs can be made at a later date.
| Report Received Date | 2023-10-06 00:00:00 |
|---|---|
| Iyear | 2023 |
| Report Number | 20230237 |
| Supplemental Number | 38853 |
| Report Type | Supplemental 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 |
| Time Zone | Eastern |
| Daylight Savings Ind | Yes |
| Location Latitude | 42.9013 Google Maps OpenStreetMap |
| Location Longitude | -82.50885 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.6 |
| Recovered Bbls | 0.6 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations) |
| 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 |
| Communication State Fed Ind | No |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Notify Qualified Indiv Ind | No |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Marysville Metering Station |
| Segment Name | Line 5 Meter 3 |
| Onshore State Abbreviation | Mi |
| Onshore Postal Code | 48079 |
| Onshore City Name | Marysville |
| Onshore County Name | St. Clair |
| Designated Location | Milepost |
| Designated Name | 1732.71 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Inside A Building |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Drain Lines |
| Installation Year | 1992 |
| Manufactured Year | 1992 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| 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 | 52 |
| Est Cost Prop Damage | 10000 |
| Est Cost Emergency | 5000 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 15052 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 173 |
| Mop Psig | 720 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 1993-03-26 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 | Yes |
| 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 No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | Internal Corrosion |
| Internal External | Internal Corrosion |
| Int Visual Exam Results | Localized Pitting |
| Int Other Corrosion Ind | Yes |
| Int Corrosion Type Details | Low/no Flow Conditions |
| Int Field Exam Basis Ind | Yes |
| Int Low Point Pipe Loc Ind | Yes |
| Corrosion Inhibitors | No |
| Corrosion Lining | No |
| Cleaning Dewatering | Not Applicable - Not Mainline Pipe |
| Corrosion Coupons | Not Applicable - Not Mainline Pipe |
| Preparer Name | S**** S**** |
| Preparer Title | Advisor Regulatory Compliance |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 7153953620 |
| Prepared Date | 2023-11-28 00:00:00 |
| Authorizer Name | L*** S********** |
| Authorizer Telephone | 7153941584 |
| Authorizer Title | Supervisor Regulatory Affairs Compliance |
| Authorizer Email | L***************@e*******.com |
| Narrative | On september 9, 2023, at 2:09 pm edt the edmonton control center received a building leak detection alarm at the marysville metering station. The control center notified operations personnel of the alarm and a field technician was dispatched to the station. The station isolation command was sent, and marysville metering station was fully shut down and isolated at 2:14 pm edt. At 2:30 pm edt field technician arrived at the station and discovered approximately 25 gallons of crude oil had been released inside the building. The source of the release was confirmed to be a pinhole on the underside of the drain line of strainer vessel 3 on the line 5 meter skid. All released product was contained in the concrete secondary containment beneath the meter skid. The meter was isolated and drained, and product was immediately cleaned up. The cause of the release was identified as internal corrosion due to low/no flow of product in the drain line. The drain line has been removed and blinded off. The meter is currently locked out until repairs can be made at a later date. |
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