Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2016-07-16 — CA
Operator
Pacific Gas & Electric Co
Cause
Equipment Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$216,602
Incident datetime
2016-07-16 13:20
Report number
Location
CA, MERCED
Narrative
On july 16th 2016 at 1320 hrs, gsr responded to odor call at 333 johnson road, los banos (adjacent to kagome foods). Pg&e shut-in the flow of gas at 1400 hours by shutting the inlet & outlet valves at the primary reg station. It was determined that an over-pressure event occurred at 1045 hours, resulting in a 4-inch plastic line failure and an unintentional release of gas. After the pipe rupture, an inspection of the primary regulator set revealed the regulator boot had failed. Based on the event review, there is a possibility that the monitor failed to control or did not lock up with caused the overpressure event. An analysis of the 4 inch plastic service pipe revealed a ductile failure on the pipe. The maop of the plastic line is 60 psi, and the system was overpressured to 370 psig. The service supplied a single customer (kagome foods) and the customer was supplied with cng by 2100 hours while pg&e crews repaired the line. Replacement of the 4-inch plastic line, large meter set, both regulator and monitor were completed on 7/18/16 at 2000 hours; cng was removed and the service was restored by 2100 hours. There were no injuries, no fatalities, no ignition associated with this incident. Fire department and police department were reported on-site. This incident is being reported to cpuc and DOT due to the unintentional release of gas and estimated damages exceeding $50,000. Please note that after further review, this incident should be classified as a transmission because the line is serving a transmission large volume customer (not downstream of a distribution center).
Detailed record list
Occurred At
2016-07-16 13:20:00
Year
2016
Report Received Date
2016-08-16 00:00:00
Iyear
2016.0
Report Number
20160071.0
Supplemental Number
16685.0
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
2016-07-16 16:45:00
Location Street Address
333 Johnson Rd
Location City Name
Los Banos
Location County Name
Merced
Location State Abbreviation
CA
Location Postal Code
93635
Location Latitude
37.07272
Location Longitude
-120.86202
Nrc Rpt Datetime
2016-07-16 20:33:00
Nrc Rpt Num
1153599
Commodity Released Type
Natural Gas
Unintentional Release
1500.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2016-07-16 13:20:00
On Site Datetime
2016-07-16 13:20:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Service
Installation Year
1989.0
Pipe Diameter
4.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Wt Plastic Unknown Ind
Unknown
Material Pe Pipe Code
Unknown
Release Type
Rupture
Rupture Orient
Circumferential
Rupture Length
6
Rupture Width
3
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
216602.0
Est Cost Emergency
0.0
Est Cost Other
0.0
Est Cost Unintentional Release
0.0
Prpty
216602.0
Commercial Affected
0.0
Industrial Affected
1.0
Residences Affected
0.0
Accident Psig
370.0
Normal Psig
40.0
Mop Psig
60.0
Accident Pressure
Pressure Exceeded The Applicable Allowance In 192.201
Scada In Place Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Pressure Regulator Ind
Yes
Preparer Name
S****** R****
Preparer Title
Compliance Engineer
Preparer Email
S***@p**.com
Preparer Telephone
9254137311
Authorizer Name
S**** R*******
Authorizer Title
Manager Regulatory Compliance
Authorizer Telephone
9253285776
Authorizer Email
G***@p**.com
Narrative
On july 16th 2016 at 1320 hrs, gsr responded to odor call at 333 johnson road, los banos (adjacent to kagome foods). Pg&e shut-in the flow of gas at 1400 hours by shutting the inlet & outlet valves at the primary reg station. It was determined that an over-pressure event occurred at 1045 hours, resulting in a 4-inch plastic line failure and an unintentional release of gas. After the pipe rupture, an inspection of the primary regulator set revealed the regulator boot had failed. Based on the event review, there is a possibility that the monitor failed to control or did not lock up with caused the overpressure event. An analysis of the 4 inch plastic service pipe revealed a ductile failure on the pipe. The maop of the plastic line is 60 psi, and the system was overpressured to 370 psig. The service supplied a single customer (kagome foods) and the customer was supplied with cng by 2100 hours while pg&e crews repaired the line. Replacement of the 4-inch plastic line, large meter set, both regulator and monitor were completed on 7/18/16 at 2000 hours; cng was removed and the service was restored by 2100 hours. There were no injuries, no fatalities, no ignition associated with this incident. Fire department and police department were reported on-site. This incident is being reported to cpuc and DOT due to the unintentional release of gas and estimated damages exceeding $50,000. Please note that after further review, this incident should be classified as a transmission because the line is serving a transmission large volume customer (not downstream of a distribution center).
| Occurred At | 2016-07-16 13:20:00 |
|---|---|
| Year | 2016 |
| Report Received Date | 2016-08-16 00:00:00 |
| Iyear | 2016.0 |
| Report Number | 20160071.0 |
| Supplemental Number | 16685.0 |
| 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 | 2016-07-16 16:45:00 |
| Location Street Address | 333 Johnson Rd |
| Location City Name | Los Banos |
| Location County Name | Merced |
| Location State Abbreviation | CA |
| Location Postal Code | 93635 |
| Location Latitude | 37.07272 Google Maps OpenStreetMap |
| Location Longitude | -120.86202 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2016-07-16 20:33:00 |
| Nrc Rpt Num | 1153599 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1500.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2016-07-16 13:20:00 |
| On Site Datetime | 2016-07-16 13:20:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Service |
| Installation Year | 1989.0 |
| Pipe Diameter | 4.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Wt Plastic Unknown Ind | Unknown |
| Material Pe Pipe Code | Unknown |
| Release Type | Rupture |
| Rupture Orient | Circumferential |
| Rupture Length | 6 |
| Rupture Width | 3 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 216602.0 |
| Est Cost Emergency | 0.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 0.0 |
| Prpty | 216602.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 1.0 |
| Residences Affected | 0.0 |
| Accident Psig | 370.0 |
| Normal Psig | 40.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Exceeded The Applicable Allowance In 192.201 |
| Scada In Place Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the incident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Pressure Regulator Ind | Yes |
| Preparer Name | S****** R**** |
| Preparer Title | Compliance Engineer |
| Preparer Email | S***@p**.com |
| Preparer Telephone | 9254137311 |
| Authorizer Name | S**** R******* |
| Authorizer Title | Manager Regulatory Compliance |
| Authorizer Telephone | 9253285776 |
| Authorizer Email | G***@p**.com |
| Narrative | On july 16th 2016 at 1320 hrs, gsr responded to odor call at 333 johnson road, los banos (adjacent to kagome foods). Pg&e shut-in the flow of gas at 1400 hours by shutting the inlet & outlet valves at the primary reg station. It was determined that an over-pressure event occurred at 1045 hours, resulting in a 4-inch plastic line failure and an unintentional release of gas. After the pipe rupture, an inspection of the primary regulator set revealed the regulator boot had failed. Based on the event review, there is a possibility that the monitor failed to control or did not lock up with caused the overpressure event. An analysis of the 4 inch plastic service pipe revealed a ductile failure on the pipe. The maop of the plastic line is 60 psi, and the system was overpressured to 370 psig. The service supplied a single customer (kagome foods) and the customer was supplied with cng by 2100 hours while pg&e crews repaired the line. Replacement of the 4-inch plastic line, large meter set, both regulator and monitor were completed on 7/18/16 at 2000 hours; cng was removed and the service was restored by 2100 hours. There were no injuries, no fatalities, no ignition associated with this incident. Fire department and police department were reported on-site. This incident is being reported to cpuc and DOT due to the unintentional release of gas and estimated damages exceeding $50,000. Please note that after further review, this incident should be classified as a transmission because the line is serving a transmission large volume customer (not downstream of a distribution center). |
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