Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2017-07-21 — CA
Operator
Pacific Gas & Electric Co
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$96,800
Incident datetime
2017-07-21 09:11
Report number
Location
CA, SHASTA
Narrative
On july 21, 2017 at 0911 hours, pg&es gas construction crew was excavating to install a new gas main and struck the existing 3-inch plastic gas distribution main resulting in an unintentional release of gas near the intersection of fig tree and airport road in redding. There was a valid USA ticket (#x718400466) and gas facilities were properly located & marked. The dig-in was a result of not exposing the gas line completely using handtools prior to using power driven equipment. Gas flow was stopped at 1145 hours by digging and squeezing the main resulting in 382 customers without gas service and activation of the oec at 1201 hours. At that time, this event was deemed significant in the judgment of the operator. Four pg&e employees were administered for post-accident testing (pat). Repairs to the main were completed at 1730 hours. All services that were impacted as a result of this incident were restored. There were no injuries, no fatalities and no ignition associated with this incident. There was no fire, police or media reported. This incident was reported to the DOT at 1300 hours (1184823) and cpuc due significant in the judgment of the operator and estimated damages greater than $50k. An update was provided to the DOT on 7/24/17 (1185098).
Detailed record list
Occurred At
2017-07-21 09:11:00
Year
2017
Report Received Date
2017-08-18 00:00:00
Iyear
2017.0
Report Number
20170070.0
Supplemental Number
16623.0
Report Type
Original 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
2017-07-21 09:11:00
Location Street Address
Fig Tree Ln & Airport Rd
Location City Name
Redding
Location County Name
Shasta
Location State Abbreviation
CA
Location Postal Code
96002
Location Latitude
40.491176
Location Longitude
-122.295546
Nrc Rpt Datetime
2017-07-21 12:55:00
Nrc Rpt Num
1184823
Commodity Released Type
Natural Gas
Unintentional Release
2618.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2017-07-21 09:11:00
On Site Datetime
2017-07-21 09:11:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
60.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1973.0
Pipe Diameter
3.0
Pipe Specification
Unknown
Pipe Manufacturer
Dupont
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Wt Plastic Unknown Ind
Unknown
Material Pe Pipe Code
Unknown
Release Type
Mechanical Puncture
Puncture Axial
1.0
Puncture Circum
3.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
96800.0
Est Cost Emergency
0.0
Est Cost Other
0.0
Est Cost Unintentional Release
8000.0
Prpty
104800.0
Commercial Affected
10.0
Industrial Affected
0.0
Residences Affected
372.0
Accident Psig
55.0
Normal Psig
55.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
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
Control room was not involved in the incident
Employee Drug Test Ind
Yes
Num Employees Tested
4
Num Employees Failed
0
Contractor Drug Test Ind
No
Cause
Excavation Damage
Cause Details
Excavation Damage By Operator (First Party)
Ex Party Type
Excavation Damage By Operator (First Party)
Notify Cga Dirt
Yes
Public Row Ind
Yes
Public Subtype
City Street
Excavator Type
Utility
Excavator Equipment
Backhoe/trackhoe
Work Performed
Natural Gas
One Call Notified Ind
Yes
One Call Ticket Num
718400466
Locator Type
Utility Owner
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
6.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Excavation Practice Not Listed Above
Preparer Name
S****** R****
Preparer Title
Gas Engineer
Preparer Email
S***@p**.com
Preparer Telephone
925-413-7311
Authorizer Name
S**** R*******
Authorizer Title
Manager Regulatory Compliance
Authorizer Telephone
925-328-5776
Authorizer Email
G***@p**.com
Narrative
On july 21, 2017 at 0911 hours, pg&es gas construction crew was excavating to install a new gas main and struck the existing 3-inch plastic gas distribution main resulting in an unintentional release of gas near the intersection of fig tree and airport road in redding. There was a valid USA ticket (#x718400466) and gas facilities were properly located & marked. The dig-in was a result of not exposing the gas line completely using handtools prior to using power driven equipment. Gas flow was stopped at 1145 hours by digging and squeezing the main resulting in 382 customers without gas service and activation of the oec at 1201 hours. At that time, this event was deemed significant in the judgment of the operator. Four pg&e employees were administered for post-accident testing (pat). Repairs to the main were completed at 1730 hours. All services that were impacted as a result of this incident were restored. There were no injuries, no fatalities and no ignition associated with this incident. There was no fire, police or media reported. This incident was reported to the DOT at 1300 hours (1184823) and cpuc due significant in the judgment of the operator and estimated damages greater than $50k. An update was provided to the DOT on 7/24/17 (1185098).
| Occurred At | 2017-07-21 09:11:00 |
|---|---|
| Year | 2017 |
| Report Received Date | 2017-08-18 00:00:00 |
| Iyear | 2017.0 |
| Report Number | 20170070.0 |
| Supplemental Number | 16623.0 |
| Report Type | Original 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 | 2017-07-21 09:11:00 |
| Location Street Address | Fig Tree Ln & Airport Rd |
| Location City Name | Redding |
| Location County Name | Shasta |
| Location State Abbreviation | CA |
| Location Postal Code | 96002 |
| Location Latitude | 40.491176 Google Maps OpenStreetMap |
| Location Longitude | -122.295546 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2017-07-21 12:55:00 |
| Nrc Rpt Num | 1184823 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 2618.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2017-07-21 09:11:00 |
| On Site Datetime | 2017-07-21 09:11:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 60.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1973.0 |
| Pipe Diameter | 3.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Dupont |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Wt Plastic Unknown Ind | Unknown |
| Material Pe Pipe Code | Unknown |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.0 |
| Puncture Circum | 3.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 96800.0 |
| Est Cost Emergency | 0.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 8000.0 |
| Prpty | 104800.0 |
| Commercial Affected | 10.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 372.0 |
| Accident Psig | 55.0 |
| Normal Psig | 55.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| 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 | Control room was not involved in the incident |
| Employee Drug Test Ind | Yes |
| Num Employees Tested | 4 |
| Num Employees Failed | 0 |
| Contractor Drug Test Ind | No |
| Cause | Excavation Damage |
| Cause Details | Excavation Damage By Operator (First Party) |
| Ex Party Type | Excavation Damage By Operator (First Party) |
| Notify Cga Dirt | Yes |
| Public Row Ind | Yes |
| Public Subtype | City Street |
| Excavator Type | Utility |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Natural Gas |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 718400466 |
| Locator Type | Utility Owner |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 6.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Excavation Practice Not Listed Above |
| Preparer Name | S****** R**** |
| Preparer Title | Gas Engineer |
| Preparer Email | S***@p**.com |
| Preparer Telephone | 925-413-7311 |
| Authorizer Name | S**** R******* |
| Authorizer Title | Manager Regulatory Compliance |
| Authorizer Telephone | 925-328-5776 |
| Authorizer Email | G***@p**.com |
| Narrative | On july 21, 2017 at 0911 hours, pg&es gas construction crew was excavating to install a new gas main and struck the existing 3-inch plastic gas distribution main resulting in an unintentional release of gas near the intersection of fig tree and airport road in redding. There was a valid USA ticket (#x718400466) and gas facilities were properly located & marked. The dig-in was a result of not exposing the gas line completely using handtools prior to using power driven equipment. Gas flow was stopped at 1145 hours by digging and squeezing the main resulting in 382 customers without gas service and activation of the oec at 1201 hours. At that time, this event was deemed significant in the judgment of the operator. Four pg&e employees were administered for post-accident testing (pat). Repairs to the main were completed at 1730 hours. All services that were impacted as a result of this incident were restored. There were no injuries, no fatalities and no ignition associated with this incident. There was no fire, police or media reported. This incident was reported to the DOT at 1300 hours (1184823) and cpuc due significant in the judgment of the operator and estimated damages greater than $50k. An update was provided to the DOT on 7/24/17 (1185098). |
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