GTG incident on 2023-09-29 — CA

Operator
Southern California Gas Co
Cause
Notification Issue
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$298,000
Incident datetime
2023-09-29 00:00 UTC
Report number
Location
CA
Narrative
On 8/30/2023, socalgas crews responded to a third-party damage on l-800 at nevada ave & 30th ave, lemoore, kings county. Upon investigation, the 20-inch transmission line was found to be punctured with farming equipment, ripper, causing a release of natural gas. Repairs have been completed as of 08/31/2023, and service had been restored. No injuries or fatalities resulted from this incident. This incident was reported to the DOT and cpuc due to gas release and damages exceeding $139,700. Investigation of the incident determined the third-party contractor was operating without a USA ticket. Accordingly, the incident was also reported to the ca underground safety board (report# oid28_20230919101530). Updated 10/31/2023: > part g classification and subcategory responses revised to reflect "excavation damage"
Detailed record list
Report Received Date
2023-09-29 00:00:00
Iyear
2023
Report Number
20230092
Supplemental Number
38725
Report Type
Supplemental Final
Operator Id
Name
Southern California Gas Co
Operator Street Address
555 West Fifth Street
Operator City Name
Los Angeles
Operator State Abbreviation
CA
Operator Postal Code
90013
Time Zone
Pacific
Daylight Savings Ind
No
Location Latitude
Location Longitude
-120.0003402
Nrc Rpt Num
Additional Nrc Report Numbers
1377900
Commodity Released Type
Natural Gas
Unintentional Release
1850
Intentional Release
831
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
Yes
Communication State Fed Ind
No
Ignite Ind
No
Upstream Action Taken
Valve Closure
Downstream Action Taken
Valve Closure
Num Pub Evacuated
0
On Off Shore
Onshore
Onshore State Abbreviation
Ca
Onshore Postal Code
93245
Onshore City Name
Not Within A Municipality
Onshore County Name
Kings County
Designated Location
Milepost
Designated Name
8.34
Pipe Fac Name
L-800
Segment Name
Mp 8.34
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
54
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
20
Puddle Weld Ind
No
Pipe Wall Thickness
0.281
Pipe Smys
42000
Pipe Specification
Unknown
Pipe Seam Type
Dsaw
Pipe Manufacturer
Unknown
Pipe Coating Type
Asphalt
Coating Applied Ind
Unknown
Installation Year
1957
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Mechanical Puncture
Puncture Axial
1
Puncture Circum
1
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
276
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
11100
Est Cost Intentional Release
4986
Est Cost Prop Damage
298000
Est Cost Emergency
30000
Est Cost Other
0
Gas Cost In Mcf
6
Prpty
344086
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
367
Gas Flow In Pipe In Mcf
1048
Mop Psig
400
Mop Cfr Section
192.619(A)(2)
Maop Established Date
1957-01-03 00:00:00
Maop Reversal Flow Ind
Bi-Directional
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
Yes
Gas Odorized Ind
Yes
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Remotely Controlled
Length Segment Isolated
14256
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Notification From Third Party That Caused The Incident
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
No, damage caused by third-party. Thus there were no issues from the control room.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Excavation Damage
Cause Details
Excavation Damage By Third Party
Ex Party Type
Excavation Damage By Third Party
Prior Notification Ind
No
State Law Exempt Ind
No
Notify Cga Dirt
No
Pipeline Easement Row Ind
Yes
Excavator Type
Farmer
Excavator Equipment
Farm Equipment
Work Performed
Agriculture
One Call Notified Ind
No
Service Interruption
No
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
S***** T*
Preparer Title
Pipeline Safety And Compliance Advisor
Preparer Email
S****@s*******.com
Preparer Telephone
978-719-3485
Preparer Fax
909-335-3989
Local Contact Name
S***** T*
Local Contact Email
S****@s*******.com
Local Contact Telephone
978-719-3485
Authorizer Name
S***** T*
Authorizer Title
Pipeline Safety And Compliance Advisor
Authorizer Telephone
978-719-3485
Authorizer Email
S****@s*******.com
Narrative
On 8/30/2023, socalgas crews responded to a third-party damage on l-800 at nevada ave & 30th ave, lemoore, kings county. Upon investigation, the 20-inch transmission line was found to be punctured with farming equipment, ripper, causing a release of natural gas. Repairs have been completed as of 08/31/2023, and service had been restored. No injuries or fatalities resulted from this incident. This incident was reported to the DOT and cpuc due to gas release and damages exceeding $139,700. Investigation of the incident determined the third-party contractor was operating without a USA ticket. Accordingly, the incident was also reported to the ca underground safety board (report# oid28_20230919101530). Updated 10/31/2023: > part g classification and subcategory responses revised to reflect "excavation damage"
Report Received Date 2023-09-29 00:00:00
Iyear 2023
Report Number 20230092
Supplemental Number 38725
Report Type Supplemental Final
Operator Id 18484 PHMSA Enforcement
Name Southern California Gas Co
Operator Street Address 555 West Fifth Street
Operator City Name Los Angeles
Operator State Abbreviation CA
Operator Postal Code 90013
Time Zone Pacific
Daylight Savings Ind No
Location Latitude 36.1272406 Google Maps OpenStreetMap
Location Longitude -120.0003402 Google Maps OpenStreetMap
Nrc Rpt Num 1377699 NRC Report How to search
Additional Nrc Report Numbers 1377900
Commodity Released Type Natural Gas
Unintentional Release 1850
Intentional Release 831
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 Yes
Communication State Fed Ind No
Ignite Ind No
Upstream Action Taken Valve Closure
Downstream Action Taken Valve Closure
Num Pub Evacuated 0
On Off Shore Onshore
Onshore State Abbreviation Ca
Onshore Postal Code 93245
Onshore City Name Not Within A Municipality
Onshore County Name Kings County
Designated Location Milepost
Designated Name 8.34
Pipe Fac Name L-800
Segment Name Mp 8.34
Federal No
Location Type Pipeline Right-Of-Way
Incident Area Type Underground
Incident Area Subtype Under Soil
Depth Of Cover 54
Other Underground Facilities No
Crossing No
Pipe Facility Type Intrastate
System Part Involved Onshore Pipeline, Including Valve Sites
Item Involved Pipe
Pipe Type Pipe Body
Pipe Diameter 20
Puddle Weld Ind No
Pipe Wall Thickness 0.281
Pipe Smys 42000
Pipe Specification Unknown
Pipe Seam Type Dsaw
Pipe Manufacturer Unknown
Pipe Coating Type Asphalt
Coating Applied Ind Unknown
Installation Year 1957
Manufactured Year Unknown
Material Involved Carbon Steel
Release Type Mechanical Puncture
Puncture Axial 1
Puncture Circum 1
Class Location Type Class 1 Location
Could Be Hca No
Pir Radius 276
Heat Damage Ind No
Non Heat Damage Ind No
Did Occur In Mca Ind No
Est Cost Oper Paid 0
Est Cost Unintentional Release 11100
Est Cost Intentional Release 4986
Est Cost Prop Damage 298000
Est Cost Emergency 30000
Est Cost Other 0
Gas Cost In Mcf 6
Prpty 344086
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 367
Gas Flow In Pipe In Mcf 1048
Mop Psig 400
Mop Cfr Section 192.619(A)(2) View CFR 49 §192
Maop Established Date 1957-01-03 00:00:00
Maop Reversal Flow Ind Bi-Directional
Accident Pressure Pressure Did Not Exceed Maop
Pressure Restriction Ind No
Gas Required Odorized Ind Yes
Gas Odorized Ind Yes
Upstream Valve Type Ind Remotely Controlled
Downstream Valve Type Ind Remotely Controlled
Length Segment Isolated 14256
Internal Inspection Ind Yes
Operation Complications Ind No
Pipeline Function Transmission System
Scada In Place Ind Yes
Scada Operating Ind Yes
Scada Functional Ind Yes
Scada Detection Ind No
Scada Conf Ind No
Accident Identifier Notification From Third Party That Caused The Incident
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 No, damage caused by third-party. Thus there were no issues from the control room.
Employee Drug Test Ind No
Contractor Drug Test Ind No
Cause Excavation Damage
Cause Details Excavation Damage By Third Party
Ex Party Type Excavation Damage By Third Party
Prior Notification Ind No
State Law Exempt Ind No
Notify Cga Dirt No
Pipeline Easement Row Ind Yes
Excavator Type Farmer
Excavator Equipment Farm Equipment
Work Performed Agriculture
One Call Notified Ind No
Service Interruption No
Root Cause Category Notification Issue
Root Cause Type No Notification Made To The One-Call Center/811
Preparer Name S***** T*
Preparer Title Pipeline Safety And Compliance Advisor
Preparer Email S****@s*******.com
Preparer Telephone 978-719-3485
Preparer Fax 909-335-3989
Local Contact Name S***** T*
Local Contact Email S****@s*******.com
Local Contact Telephone 978-719-3485
Authorizer Name S***** T*
Authorizer Title Pipeline Safety And Compliance Advisor
Authorizer Telephone 978-719-3485
Authorizer Email S****@s*******.com
Narrative On 8/30/2023, socalgas crews responded to a third-party damage on l-800 at nevada ave & 30th ave, lemoore, kings county. Upon investigation, the 20-inch transmission line was found to be punctured with farming equipment, ripper, causing a release of natural gas. Repairs have been completed as of 08/31/2023, and service had been restored. No injuries or fatalities resulted from this incident. This incident was reported to the DOT and cpuc due to gas release and damages exceeding $139,700. Investigation of the incident determined the third-party contractor was operating without a USA ticket. Accordingly, the incident was also reported to the ca underground safety board (report# oid28_20230919101530). Updated 10/31/2023: > part g classification and subcategory responses revised to reflect "excavation damage"

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