Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2017-07-27 — CA
Operator
Pacific Gas & Electric Co
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$248,476
Incident datetime
2017-07-27 14:17
Report number
Location
CA, SAN JOAQUIN
Narrative
On july 27, 2017 at 1401 hours, pg&e received an erx alarm in acampo. At 1417 hours, pg&e was notified of a third party dig-in at 216 w taddei rd, acampo. Third party contractor was ripping/plowing the field and severed a 6' steel gas main, resulting in an unintentional release of gas. There was a valid USA ticket (#w719900024) and pg&e facilities were properly located & marked. The dig-in was a result of failing to raise the ripper shank prior to driving over the gas pipeline. In addition, the excavator did not determine the exact location of the line using hand tools within the tolerance zone. Pg&e gas service representative (gsr) arrived on site at 1441 hours. The flow of gas was stopped at 1527 hours by shutting in the reg station and closing valves. Approximately 738 customer gas services were impacted. Repairs to the main were completed by 2030 hours. Gsrs were deployed and service restoration operations began on 7/28/17 at 1300 hours. All services have been restored. Fire department, highway patrol and the local sheriff were reported on-site. Media was reported on site on 7/28/17. There were no injuries, fatalities, or ignition associated with this incident. Approximately 4.9 mmcf of natural gas was unintentionally released. This incident was reported to DOT (1185473) due to the large customer outage resulting in damages greater than $50k and unintentional release of gas greater than 3 mmcf. The volume update was provided to the DOT (1185576) on 7/28/17.
Detailed record list
Occurred At
2017-07-27 14:17:00
Year
2017
Report Received Date
2017-08-25 00:00:00
Iyear
2017.0
Report Number
20170072.0
Supplemental Number
16630.0
Report Type
Supplemental Final
Operator Id
15007
Name
Pacific Gas & Electric Co
Operator Street Address
6121 Bollinger Canyon Rd.
Operator City Name
San Ramon
Operator State Abbreviation
CA
Operator Postal Code
94583
Local Datetime
2017-07-27 14:01:00
Location Street Address
216 W Taddei Rd
Location City Name
Acampo
Location County Name
San Joaquin
Location State Abbreviation
CA
Location Postal Code
95220
Location Latitude
38.190379
Location Longitude
-121.321087
Nrc Rpt Datetime
2017-07-27 15:56:00
Nrc Rpt Num
1185473
Commodity Released Type
Natural Gas
Unintentional Release
4900.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
10.0
Incident Identified Datetime
2017-07-27 14:17:00
On Site Datetime
2017-07-27 14:41:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
24.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1946.0
Pipe Diameter
6.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Electric Resistance Welded
Release Type
Mechanical Puncture
Puncture Axial
6.0
Puncture Circum
6.0
Class Location Type
Class 2 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
248476.0
Est Cost Emergency
0.0
Est Cost Other
0.0
Est Cost Unintentional Release
14700.0
Prpty
263176.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
738.0
Accident Psig
54.0
Normal Psig
54.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Emergency Responder
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
Event was caused by a 3rd party dig in. Third party contractor was ripping/plowing the field and severed the 6" steel gas main.
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
Yes
One Call System Ind
Yes
Notify Cga Dirt
No
Private Row Ind
Yes
Private Subtype
Private Landowner
Excavator Type
Contractor
Excavator Equipment
Farm Equipment
Work Performed
Agriculture
One Call Notified Ind
Yes
One Call Ticket Num
719900024
One Call Center Name
811
Locator Type
Utility Owner
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
22.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Excavation Practice Not Listed Above
Preparer Name
E*** B******
Preparer Title
Senior Program Manager
Preparer Email
E***@p**.com
Preparer Telephone
925-357-7889
Authorizer Name
S**** R*******
Authorizer Title
Manager Regulatory Compliance
Authorizer Telephone
925-328-5776
Authorizer Email
G***@p**.com
Narrative
On july 27, 2017 at 1401 hours, pg&e received an erx alarm in acampo. At 1417 hours, pg&e was notified of a third party dig-in at 216 w taddei rd, acampo. Third party contractor was ripping/plowing the field and severed a 6' steel gas main, resulting in an unintentional release of gas. There was a valid USA ticket (#w719900024) and pg&e facilities were properly located & marked. The dig-in was a result of failing to raise the ripper shank prior to driving over the gas pipeline. In addition, the excavator did not determine the exact location of the line using hand tools within the tolerance zone. Pg&e gas service representative (gsr) arrived on site at 1441 hours. The flow of gas was stopped at 1527 hours by shutting in the reg station and closing valves. Approximately 738 customer gas services were impacted. Repairs to the main were completed by 2030 hours. Gsrs were deployed and service restoration operations began on 7/28/17 at 1300 hours. All services have been restored. Fire department, highway patrol and the local sheriff were reported on-site. Media was reported on site on 7/28/17. There were no injuries, fatalities, or ignition associated with this incident. Approximately 4.9 mmcf of natural gas was unintentionally released. This incident was reported to DOT (1185473) due to the large customer outage resulting in damages greater than $50k and unintentional release of gas greater than 3 mmcf. The volume update was provided to the DOT (1185576) on 7/28/17.
| Occurred At | 2017-07-27 14:17:00 |
|---|---|
| Year | 2017 |
| Report Received Date | 2017-08-25 00:00:00 |
| Iyear | 2017.0 |
| Report Number | 20170072.0 |
| Supplemental Number | 16630.0 |
| Report Type | Supplemental Final |
| Operator Id | 15007 PHMSA Enforcement |
| Name | Pacific Gas & Electric Co |
| Operator Street Address | 6121 Bollinger Canyon Rd. |
| Operator City Name | San Ramon |
| Operator State Abbreviation | CA |
| Operator Postal Code | 94583 |
| Local Datetime | 2017-07-27 14:01:00 |
| Location Street Address | 216 W Taddei Rd |
| Location City Name | Acampo |
| Location County Name | San Joaquin |
| Location State Abbreviation | CA |
| Location Postal Code | 95220 |
| Location Latitude | 38.190379 Google Maps OpenStreetMap |
| Location Longitude | -121.321087 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2017-07-27 15:56:00 |
| Nrc Rpt Num | 1185473 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 4900.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 10.0 |
| Incident Identified Datetime | 2017-07-27 14:17:00 |
| On Site Datetime | 2017-07-27 14:41:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 24.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1946.0 |
| Pipe Diameter | 6.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Electric Resistance Welded |
| Release Type | Mechanical Puncture |
| Puncture Axial | 6.0 |
| Puncture Circum | 6.0 |
| Class Location Type | Class 2 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 248476.0 |
| Est Cost Emergency | 0.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 14700.0 |
| Prpty | 263176.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 738.0 |
| Accident Psig | 54.0 |
| Normal Psig | 54.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Emergency Responder |
| 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 | Event was caused by a 3rd party dig in. Third party contractor was ripping/plowing the field and severed the 6" steel gas main. |
| 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 | Yes |
| One Call System Ind | Yes |
| Notify Cga Dirt | No |
| Private Row Ind | Yes |
| Private Subtype | Private Landowner |
| Excavator Type | Contractor |
| Excavator Equipment | Farm Equipment |
| Work Performed | Agriculture |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 719900024 |
| One Call Center Name | 811 |
| Locator Type | Utility Owner |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 22.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Excavation Practice Not Listed Above |
| Preparer Name | E*** B****** |
| Preparer Title | Senior Program Manager |
| Preparer Email | E***@p**.com |
| Preparer Telephone | 925-357-7889 |
| Authorizer Name | S**** R******* |
| Authorizer Title | Manager Regulatory Compliance |
| Authorizer Telephone | 925-328-5776 |
| Authorizer Email | G***@p**.com |
| Narrative | On july 27, 2017 at 1401 hours, pg&e received an erx alarm in acampo. At 1417 hours, pg&e was notified of a third party dig-in at 216 w taddei rd, acampo. Third party contractor was ripping/plowing the field and severed a 6' steel gas main, resulting in an unintentional release of gas. There was a valid USA ticket (#w719900024) and pg&e facilities were properly located & marked. The dig-in was a result of failing to raise the ripper shank prior to driving over the gas pipeline. In addition, the excavator did not determine the exact location of the line using hand tools within the tolerance zone. Pg&e gas service representative (gsr) arrived on site at 1441 hours. The flow of gas was stopped at 1527 hours by shutting in the reg station and closing valves. Approximately 738 customer gas services were impacted. Repairs to the main were completed by 2030 hours. Gsrs were deployed and service restoration operations began on 7/28/17 at 1300 hours. All services have been restored. Fire department, highway patrol and the local sheriff were reported on-site. Media was reported on site on 7/28/17. There were no injuries, fatalities, or ignition associated with this incident. Approximately 4.9 mmcf of natural gas was unintentionally released. This incident was reported to DOT (1185473) due to the large customer outage resulting in damages greater than $50k and unintentional release of gas greater than 3 mmcf. The volume update was provided to the DOT (1185576) on 7/28/17. |
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