Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2024-07-31 — TX
Operator
Harvest Midstream Company
Cause
Corrosion Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$55,000
Incident datetime
2024-07-31 00:00 UTC
Report number
Location
TX
Narrative
At approximately 8:30 am on sunday july 7, 2024, pipeline operators for harvest started hurricane preparation tasks at the midway hub station. At 8:50 am they discovered that the midway hub gardendale interconnect outgoing 16' lateral was leaking oil onto the caliche pad and immediately notified the harvest foreman. At 8:51 am the operator contacted the pipeline control room operator to close all flow into and out of midway hub. At 8:52 am the operator contacted the harvest sr foreman to notify about the leak. At 9:00 am (per control room log) control room closed both mov-6002 and tank outlet mov-2001 in order to isolate to determine the source of the leak. 9:00 am was designated as the time the accident was confirmed. The harvest operations manager and the ehs specialist were notified at approximately 9:12 am. At approximately 9:20 am mov-3032 was closed to further isolate the leak on the upstream section of pipe. At 9:50 am harvest makes first contact to texas railroad commission. At approximately 10:15 am a vacuum truck arrived at site and began evacuating oil from the isolated section of pipe. At approximately 10:45 am the 3rd party contractor arrived at site with gator drying agent. At 11:46 am foreman makes call to rrc to update progress on the cleanup effort and gets the ok to evacuate site for further hurricane preparations. By approximately 1:30 pm the vacuum truck finished pulling ~70 bbls from the isolated section of line and emptied these liquids back into tank 2000. By 3:00 pm the remaining parties on site secured the site and evacuated for further hurricane preparations. At 12:00 on monday, july 8th 2024, harvest construction foreman examined the spill to work on a clean-up plan. At 2:00 pm he met with a representative from enbridge due to a line crossing intersection. At 4:00 pm he met with 3rd party contractor to organize a work plan for the next day. At 7:30 am tuesday july 9th, 2024, harvest construction foreman, contractors, and an enbridge representative arrived on-site and began to excavate the impacted caliche/soil. The crews secured the partial excavation and demobilized from site around 5:00 pm. On wednesday july 10th 2024 at 8:00 am the crews began working at site and by 12:00 pm thursday july 11th, 2024, the pipeline was completely excavated and personnel could enter the excavation to initially examine the external surface of the leak on the below grade elbow of the riser. The failed pipe segment and elbow was cut-out at 2:00 pm. The failed elbow and adjacent piping was taken back to the contractor's facility to prep for transport to adv integrity for analysis. All operators and contractors demobilized from the site and secured the area with fencing by 5:00 pm. On friday july 12th, 2024, at 1:30 pm adv integrity received the section of pipe and assumed custody. As the analysis of the pipe segment is not complete at the time of this report, the ongoing investigation team is making the preliminary determination that internal corrosion is the apparent cause. Once the final report and the rca are complete, the report shall be updated if necessary. Update for supplemental report: adv's analysis of the corrosion deposits indicated that the corrosion observed occurred in an environment containing high levels of bacteria leading to microbial influenced corrosion exacerbated through the presence of CO2, water and other deposits that collected along the bottom of the elbow. The pits-in-pits morphology identified via metallography is commonly identified when microbial induced corrosion (mic) or under deposit corrosion is present. Root cause analysis revealed the need for an enhanced operational deadleg piping review. The approach will involve a comprehensive identification and documentation of all deadleg piping, risk assessment of these areas, and the integration of design modifications aimed at minimizing or eliminating deadlegs where feasible. Rollout target q4 2024.
Detailed record list
Report Received Date
2024-07-31 00:00:00
Iyear
2024
Report Number
20240178
Supplemental Number
39962
Report Type
Supplemental Final
Operator Id
30782
Name
Harvest Midstream Company
Operator Street Address
1111 Travis
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
27.9100325
Location Longitude
-97.4295731
Commodity Released Type
Crude Oil
Unintentional Release Bbls
10
Recovered Bbls
10
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Still Shutdown Ind
Yes
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Nrc Rpt Num
1403990
Additional Nrc Report Numbers
1404157
Ignite Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Type Ind
Manual
Downstream Action Taken
Valve Closure
Downstream Valve Type Ind
Manual
Notify Qualified Indiv Ind
Yes
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Midway Hub - Gardendale
Segment Name
Station Piping
Onshore State Abbreviation
Tx
Onshore Postal Code
78390
Onshore City Name
Taft
Onshore County Name
San Patricio
Designated Location
Milepost
Designated Name
Station
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
168
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Pipe
Pipe Type
Pipe Body
Puddle Weld Ind
No
Pipe Diameter
16
Pipe Wall Thickness
0.375
Pipe Smys
42000
Pipe Specification
Api 5lx42
Pipe Seam Type
Seamless
Pipe Manufacturer
Arcelormittal Tubular Products Roman
Pipe Coating Type
Fusion Bonded Epoxy(Fbe)
Coating Applied Ind
Unknown
Installation Year
2020
Manufactured Year
2019
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
150
Est Cost Prop Damage
55000
Est Cost Emergency
20000
Est Cost Environmental
10000
Est Cost Other
4800
Est Cost Other Details
Adv Integrity Lab Costs
Prpty
89950
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
110
Mop Psig
1480
Mop Cfr Section
Internal Design Pressure �195.406(A)(1)
Maop Established Date
2019-11-30 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
530
Internal Inspection Ind
No
Other Inspection Ind
Yes
Internal Inspection Details
Station Piping
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
No
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf 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
Volume is too minimal to be detected by control room and systems
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 Microbiological Ind
Yes
Int Field Exam Basis Ind
Yes
Int Metallurgical Basis Ind
Yes
Int Elbow Loc Ind
Yes
Corrosion Inhibitors
Yes
Corrosion Lining
No
Cleaning Dewatering
Not Applicable - Not Mainline Pipe
Corrosion Coupons
Not Applicable - Not Mainline Pipe
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Intrnl Cor Microbiologic Ind
Yes
Preparer Name
L**** A*****
Preparer Title
Regulatory And Compliance Specialist Iv
Preparer Email
L******@h***************.com
Preparer Telephone
2817871421
Prepared Date
2024-09-03 00:00:00
Local Contact Name
K**** K*****
Local Contact Email
K******@h***************.com
Local Contact Telephone
3615437498
Authorizer Name
L***** F*****
Authorizer Telephone
3462372138
Authorizer Title
Director Of Integrity And Compliance
Authorizer Email
L************@h***************.com
Narrative
At approximately 8:30 am on sunday july 7, 2024, pipeline operators for harvest started hurricane preparation tasks at the midway hub station. At 8:50 am they discovered that the midway hub gardendale interconnect outgoing 16' lateral was leaking oil onto the caliche pad and immediately notified the harvest foreman. At 8:51 am the operator contacted the pipeline control room operator to close all flow into and out of midway hub. At 8:52 am the operator contacted the harvest sr foreman to notify about the leak. At 9:00 am (per control room log) control room closed both mov-6002 and tank outlet mov-2001 in order to isolate to determine the source of the leak. 9:00 am was designated as the time the accident was confirmed. The harvest operations manager and the ehs specialist were notified at approximately 9:12 am. At approximately 9:20 am mov-3032 was closed to further isolate the leak on the upstream section of pipe. At 9:50 am harvest makes first contact to texas railroad commission. At approximately 10:15 am a vacuum truck arrived at site and began evacuating oil from the isolated section of pipe. At approximately 10:45 am the 3rd party contractor arrived at site with gator drying agent. At 11:46 am foreman makes call to rrc to update progress on the cleanup effort and gets the ok to evacuate site for further hurricane preparations. By approximately 1:30 pm the vacuum truck finished pulling ~70 bbls from the isolated section of line and emptied these liquids back into tank 2000. By 3:00 pm the remaining parties on site secured the site and evacuated for further hurricane preparations. At 12:00 on monday, july 8th 2024, harvest construction foreman examined the spill to work on a clean-up plan. At 2:00 pm he met with a representative from enbridge due to a line crossing intersection. At 4:00 pm he met with 3rd party contractor to organize a work plan for the next day. At 7:30 am tuesday july 9th, 2024, harvest construction foreman, contractors, and an enbridge representative arrived on-site and began to excavate the impacted caliche/soil. The crews secured the partial excavation and demobilized from site around 5:00 pm. On wednesday july 10th 2024 at 8:00 am the crews began working at site and by 12:00 pm thursday july 11th, 2024, the pipeline was completely excavated and personnel could enter the excavation to initially examine the external surface of the leak on the below grade elbow of the riser. The failed pipe segment and elbow was cut-out at 2:00 pm. The failed elbow and adjacent piping was taken back to the contractor's facility to prep for transport to adv integrity for analysis. All operators and contractors demobilized from the site and secured the area with fencing by 5:00 pm. On friday july 12th, 2024, at 1:30 pm adv integrity received the section of pipe and assumed custody. As the analysis of the pipe segment is not complete at the time of this report, the ongoing investigation team is making the preliminary determination that internal corrosion is the apparent cause. Once the final report and the rca are complete, the report shall be updated if necessary. Update for supplemental report: adv's analysis of the corrosion deposits indicated that the corrosion observed occurred in an environment containing high levels of bacteria leading to microbial influenced corrosion exacerbated through the presence of CO2, water and other deposits that collected along the bottom of the elbow. The pits-in-pits morphology identified via metallography is commonly identified when microbial induced corrosion (mic) or under deposit corrosion is present. Root cause analysis revealed the need for an enhanced operational deadleg piping review. The approach will involve a comprehensive identification and documentation of all deadleg piping, risk assessment of these areas, and the integration of design modifications aimed at minimizing or eliminating deadlegs where feasible. Rollout target q4 2024.
| Report Received Date | 2024-07-31 00:00:00 |
|---|---|
| Iyear | 2024 |
| Report Number | 20240178 |
| Supplemental Number | 39962 |
| Report Type | Supplemental Final |
| Operator Id | 30782 PHMSA Enforcement |
| Name | Harvest Midstream Company |
| Operator Street Address | 1111 Travis |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 27.9100325 Google Maps OpenStreetMap |
| Location Longitude | -97.4295731 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 10 |
| Recovered Bbls | 10 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Still Shutdown Ind | Yes |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Operator |
| Nrc Rpt Num | 1403990 NRC Report How to search |
| Additional Nrc Report Numbers | 1404157 |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Upstream Valve Type Ind | Manual |
| Downstream Action Taken | Valve Closure |
| Downstream Valve Type Ind | Manual |
| Notify Qualified Indiv Ind | Yes |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Midway Hub - Gardendale |
| Segment Name | Station Piping |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 78390 |
| Onshore City Name | Taft |
| Onshore County Name | San Patricio |
| Designated Location | Milepost |
| Designated Name | Station |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 168 |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Puddle Weld Ind | No |
| Pipe Diameter | 16 |
| Pipe Wall Thickness | 0.375 |
| Pipe Smys | 42000 |
| Pipe Specification | Api 5lx42 |
| Pipe Seam Type | Seamless |
| Pipe Manufacturer | Arcelormittal Tubular Products Roman |
| Pipe Coating Type | Fusion Bonded Epoxy(Fbe) |
| Coating Applied Ind | Unknown |
| Installation Year | 2020 |
| Manufactured Year | 2019 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 150 |
| Est Cost Prop Damage | 55000 |
| Est Cost Emergency | 20000 |
| Est Cost Environmental | 10000 |
| Est Cost Other | 4800 |
| Est Cost Other Details | Adv Integrity Lab Costs |
| Prpty | 89950 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 110 |
| Mop Psig | 1480 |
| Mop Cfr Section | Internal Design Pressure �195.406(A)(1) View CFR 49 §192 |
| Maop Established Date | 2019-11-30 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 530 |
| Internal Inspection Ind | No |
| Other Inspection Ind | Yes |
| Internal Inspection Details | Station Piping |
| 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 | No |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf 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 | Volume is too minimal to be detected by control room and systems |
| 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 Microbiological Ind | Yes |
| Int Field Exam Basis Ind | Yes |
| Int Metallurgical Basis Ind | Yes |
| Int Elbow Loc Ind | Yes |
| Corrosion Inhibitors | Yes |
| Corrosion Lining | No |
| Cleaning Dewatering | Not Applicable - Not Mainline Pipe |
| Corrosion Coupons | Not Applicable - Not Mainline Pipe |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Intrnl Cor Microbiologic Ind | Yes |
| Preparer Name | L**** A***** |
| Preparer Title | Regulatory And Compliance Specialist Iv |
| Preparer Email | L******@h***************.com |
| Preparer Telephone | 2817871421 |
| Prepared Date | 2024-09-03 00:00:00 |
| Local Contact Name | K**** K***** |
| Local Contact Email | K******@h***************.com |
| Local Contact Telephone | 3615437498 |
| Authorizer Name | L***** F***** |
| Authorizer Telephone | 3462372138 |
| Authorizer Title | Director Of Integrity And Compliance |
| Authorizer Email | L************@h***************.com |
| Narrative | At approximately 8:30 am on sunday july 7, 2024, pipeline operators for harvest started hurricane preparation tasks at the midway hub station. At 8:50 am they discovered that the midway hub gardendale interconnect outgoing 16' lateral was leaking oil onto the caliche pad and immediately notified the harvest foreman. At 8:51 am the operator contacted the pipeline control room operator to close all flow into and out of midway hub. At 8:52 am the operator contacted the harvest sr foreman to notify about the leak. At 9:00 am (per control room log) control room closed both mov-6002 and tank outlet mov-2001 in order to isolate to determine the source of the leak. 9:00 am was designated as the time the accident was confirmed. The harvest operations manager and the ehs specialist were notified at approximately 9:12 am. At approximately 9:20 am mov-3032 was closed to further isolate the leak on the upstream section of pipe. At 9:50 am harvest makes first contact to texas railroad commission. At approximately 10:15 am a vacuum truck arrived at site and began evacuating oil from the isolated section of pipe. At approximately 10:45 am the 3rd party contractor arrived at site with gator drying agent. At 11:46 am foreman makes call to rrc to update progress on the cleanup effort and gets the ok to evacuate site for further hurricane preparations. By approximately 1:30 pm the vacuum truck finished pulling ~70 bbls from the isolated section of line and emptied these liquids back into tank 2000. By 3:00 pm the remaining parties on site secured the site and evacuated for further hurricane preparations. At 12:00 on monday, july 8th 2024, harvest construction foreman examined the spill to work on a clean-up plan. At 2:00 pm he met with a representative from enbridge due to a line crossing intersection. At 4:00 pm he met with 3rd party contractor to organize a work plan for the next day. At 7:30 am tuesday july 9th, 2024, harvest construction foreman, contractors, and an enbridge representative arrived on-site and began to excavate the impacted caliche/soil. The crews secured the partial excavation and demobilized from site around 5:00 pm. On wednesday july 10th 2024 at 8:00 am the crews began working at site and by 12:00 pm thursday july 11th, 2024, the pipeline was completely excavated and personnel could enter the excavation to initially examine the external surface of the leak on the below grade elbow of the riser. The failed pipe segment and elbow was cut-out at 2:00 pm. The failed elbow and adjacent piping was taken back to the contractor's facility to prep for transport to adv integrity for analysis. All operators and contractors demobilized from the site and secured the area with fencing by 5:00 pm. On friday july 12th, 2024, at 1:30 pm adv integrity received the section of pipe and assumed custody. As the analysis of the pipe segment is not complete at the time of this report, the ongoing investigation team is making the preliminary determination that internal corrosion is the apparent cause. Once the final report and the rca are complete, the report shall be updated if necessary. Update for supplemental report: adv's analysis of the corrosion deposits indicated that the corrosion observed occurred in an environment containing high levels of bacteria leading to microbial influenced corrosion exacerbated through the presence of CO2, water and other deposits that collected along the bottom of the elbow. The pits-in-pits morphology identified via metallography is commonly identified when microbial induced corrosion (mic) or under deposit corrosion is present. Root cause analysis revealed the need for an enhanced operational deadleg piping review. The approach will involve a comprehensive identification and documentation of all deadleg piping, risk assessment of these areas, and the integration of design modifications aimed at minimizing or eliminating deadlegs where feasible. Rollout target q4 2024. |
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