Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2011-10-31 — PA
Operator
Ugi Utilities, Inc
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$18,000
Incident datetime
2011-10-31 13:30
Report number
Location
PA, LANCASTER COUNTY
Narrative
On october 31st an explosion occurred at 10 manor avenue in millersville, pa. Destroying the building. There were no injuries or fatalities. The source of the natural gas involved in the explosion was from an 8" pe gas main that was damaged by a horizontal directional drilling (hdd) unit installing conduit for fiber optic cable. Although there was clear evidence of the pe gas main within the construction path, as it was identified with yellow paint on the pavement prior to the incident, the third party hdd contractor failed to verify the precise location of the gas main before the damage occurred. A (16)- an area was evacuated (2) blocks east and west of the incident site and (1) block to the south. An exact number was not available. A- (4, 17 a & b). The inputting of accurate times was discussed with the PHMSA information resources manager prior to submitting. 4- the time of the explosion was 13:30 17 a- the time the operator became aware of the explosion was 13:30. 17b- operator arrived on site at 12:24, based on our response to a call from local ema at 11:57 of a possible line strike and leaking gas . If it is determined fields require changing this can be accomplished in a supplemental filing.
Detailed record list
Occurred At
2011-10-31 13:30:00
Year
2011
Report Received Date
2011-11-29 00:00:00
Iyear
2011.0
Report Number
20110387.0
Supplemental Number
15356.0
Report Type
Original
Operator Id
20010
Name
Ugi Utilities, Inc
Operator Street Address
1 Ugi Drive
Operator City Name
Denver
Operator State Abbreviation
PA
Operator Postal Code
17517
Local Datetime
2011-10-31 13:30:00
Location Street Address
10 Manor Avenue
Location City Name
Millersville
Location County Name
Lancaster County
Location State Abbreviation
PA
Location Postal Code
17551-1123
Location Latitude
40.0084
Location Longitude
-76.3583
Nrc Rpt Datetime
2011-10-31 14:52:00
Nrc Rpt Num
994104
Commodity Released Type
Natural Gas
Unintentional Release
729.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
Yes
Incident Identified Datetime
2011-10-31 13:30:00
On Site Datetime
2011-10-31 13:30:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1998.0
Pipe Diameter
8.625
Pipe Specification
Pe 2306
Pipe Manufacturer
Uponoor
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
13.5
Material Pe Pipe Code
2306
Release Type
Mechanical Puncture
Puncture Axial
2.5
Puncture Circum
7.7
Class Location Type
Class 3 Location
Est Cost Oper Paid
425000.0
Est Cost Prop Damage
18000.0
Est Cost Emergency
12500.0
Est Cost Other
0.0
Est Cost Unintentional Release
6180.0
Prpty
461680.0
Commercial Affected
2.0
Industrial Affected
0.0
Residences Affected
7.0
Accident Psig
42.0
Normal Psig
42.0
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
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
The incident was the result of a damaged gas line and was not related to the controller or control room.
Employee Drug Test Ind
Yes
Num Employees Tested
4
Num Employees Failed
0
Contractor Drug Test Ind
Yes
Num Contractors Tested
3
Num Contractors Failed
0
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
Public Row Ind
Yes
Public Subtype
State Highway
Excavator Type
Contractor
Excavator Equipment
Directional Drilling
Work Performed
Telecommunications
One Call Notified Ind
Yes
One Call Ticket Num
20112851016
One Call Center Name
Pa One Call
Locator Type
Utility Owner
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
13.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Excavation Practice Not Listed Above
Preparer Name
E*** S* S*******
Preparer Title
Manager Compliance And Damage Prevention
Preparer Email
E********@u**.com
Preparer Telephone
610-796-3513
Preparer Fax
610-796-3402
Authorizer Name
R***** F* B****
Authorizer Title
President And Ceo
Authorizer Telephone
610-796-3434
Authorizer Email
R*****@u**.com
Narrative
On october 31st an explosion occurred at 10 manor avenue in millersville, pa. Destroying the building. There were no injuries or fatalities. The source of the natural gas involved in the explosion was from an 8" pe gas main that was damaged by a horizontal directional drilling (hdd) unit installing conduit for fiber optic cable. Although there was clear evidence of the pe gas main within the construction path, as it was identified with yellow paint on the pavement prior to the incident, the third party hdd contractor failed to verify the precise location of the gas main before the damage occurred. A (16)- an area was evacuated (2) blocks east and west of the incident site and (1) block to the south. An exact number was not available. A- (4, 17 a & b). The inputting of accurate times was discussed with the PHMSA information resources manager prior to submitting. 4- the time of the explosion was 13:30 17 a- the time the operator became aware of the explosion was 13:30. 17b- operator arrived on site at 12:24, based on our response to a call from local ema at 11:57 of a possible line strike and leaking gas . If it is determined fields require changing this can be accomplished in a supplemental filing.
| Occurred At | 2011-10-31 13:30:00 |
|---|---|
| Year | 2011 |
| Report Received Date | 2011-11-29 00:00:00 |
| Iyear | 2011.0 |
| Report Number | 20110387.0 |
| Supplemental Number | 15356.0 |
| Report Type | Original |
| Operator Id | 20010 PHMSA Enforcement |
| Name | Ugi Utilities, Inc |
| Operator Street Address | 1 Ugi Drive |
| Operator City Name | Denver |
| Operator State Abbreviation | PA |
| Operator Postal Code | 17517 |
| Local Datetime | 2011-10-31 13:30:00 |
| Location Street Address | 10 Manor Avenue |
| Location City Name | Millersville |
| Location County Name | Lancaster County |
| Location State Abbreviation | PA |
| Location Postal Code | 17551-1123 |
| Location Latitude | 40.0084 Google Maps OpenStreetMap |
| Location Longitude | -76.3583 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2011-10-31 14:52:00 |
| Nrc Rpt Num | 994104 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 729.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | Yes |
| Incident Identified Datetime | 2011-10-31 13:30:00 |
| On Site Datetime | 2011-10-31 13:30:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1998.0 |
| Pipe Diameter | 8.625 |
| Pipe Specification | Pe 2306 |
| Pipe Manufacturer | Uponoor |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Plastic Sdr | 13.5 |
| Material Pe Pipe Code | 2306 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 2.5 |
| Puncture Circum | 7.7 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 425000.0 |
| Est Cost Prop Damage | 18000.0 |
| Est Cost Emergency | 12500.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 6180.0 |
| Prpty | 461680.0 |
| Commercial Affected | 2.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 7.0 |
| Accident Psig | 42.0 |
| Normal Psig | 42.0 |
| 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 | 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 | The incident was the result of a damaged gas line and was not related to the controller or control room. |
| Employee Drug Test Ind | Yes |
| Num Employees Tested | 4 |
| Num Employees Failed | 0 |
| Contractor Drug Test Ind | Yes |
| Num Contractors Tested | 3 |
| Num Contractors Failed | 0 |
| 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 |
| Public Row Ind | Yes |
| Public Subtype | State Highway |
| Excavator Type | Contractor |
| Excavator Equipment | Directional Drilling |
| Work Performed | Telecommunications |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 20112851016 |
| One Call Center Name | Pa One Call |
| Locator Type | Utility Owner |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 13.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Excavation Practice Not Listed Above |
| Preparer Name | E*** S* S******* |
| Preparer Title | Manager Compliance And Damage Prevention |
| Preparer Email | E********@u**.com |
| Preparer Telephone | 610-796-3513 |
| Preparer Fax | 610-796-3402 |
| Authorizer Name | R***** F* B**** |
| Authorizer Title | President And Ceo |
| Authorizer Telephone | 610-796-3434 |
| Authorizer Email | R*****@u**.com |
| Narrative | On october 31st an explosion occurred at 10 manor avenue in millersville, pa. Destroying the building. There were no injuries or fatalities. The source of the natural gas involved in the explosion was from an 8" pe gas main that was damaged by a horizontal directional drilling (hdd) unit installing conduit for fiber optic cable. Although there was clear evidence of the pe gas main within the construction path, as it was identified with yellow paint on the pavement prior to the incident, the third party hdd contractor failed to verify the precise location of the gas main before the damage occurred. A (16)- an area was evacuated (2) blocks east and west of the incident site and (1) block to the south. An exact number was not available. A- (4, 17 a & b). The inputting of accurate times was discussed with the PHMSA information resources manager prior to submitting. 4- the time of the explosion was 13:30 17 a- the time the operator became aware of the explosion was 13:30. 17b- operator arrived on site at 12:24, based on our response to a call from local ema at 11:57 of a possible line strike and leaking gas . If it is determined fields require changing this can be accomplished in a supplemental filing. |
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