Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2011-08-10 — NY
Operator
Niagara Mohawk Power Corp
Cause
Notification Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$33,000
Incident datetime
2011-08-10 11:10
Report number
Location
NY, ALBANY
Narrative
Third party contractor was excavating sewer to make repairs caused by previous excavating damage caused by same contractor. Contractor called dig safe requesting mark-out for pipeline facilities in area. Dig safe issued ticket, national grid received ticket, national grid locators were in the process of locating facilities, but had not yet completed mark-outs. Contractor commenced excavation activities 24 hours in advance of first allowable excavation date. Contractor subsequently was issued a citation by new york state public service commission related to insufficient notification. Excavator punctured 12 inch steel pipeline operating at 220 psig. Approximately 20 residents were evacuated by fire officials. National grid personnel controlled the escaping gas by closing isolating valves on either side of damaged section. No customer interruptions resulted, although damaged section of pipeline was removed from service. Escaping gas did not ignite or explode. There were no injuries requiring hospitalization. Escaping gas was controlled within 1 hour of notification.
Detailed record list
Occurred At
2011-08-10 11:10:00
Year
2011
Report Received Date
2011-09-07 00:00:00
Iyear
2011.0
Report Number
20110327.0
Supplemental Number
15314.0
Report Type
Original
Operator Id
13480
Name
Niagara Mohawk Power Corp
Operator Street Address
300 Erie Boulevard West
Operator City Name
Syracuse
Operator State Abbreviation
NY
Operator Postal Code
13202
Local Datetime
2011-08-10 11:10:00
Location Street Address
Woodlake Rd
Location City Name
Albany
Location County Name
Albany
Location State Abbreviation
NY
Location Postal Code
12203
Location Latitude
42.679202
Location Longitude
-73.846482
Nrc Rpt Datetime
2011-08-11 12:35:00
Nrc Rpt Num
985628
Commodity Released Type
Natural Gas
Unintentional Release
7495.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
20.0
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1967.0
Pipe Diameter
12.0
Pipe Specification
Api 5l Grade B
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Erw
Wt Steel
0.25
Release Type
Mechanical Puncture
Puncture Axial
7.0
Puncture Circum
6.3
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
33000.0
Est Cost Emergency
7000.0
Est Cost Other
12000.0
Est Cost Other Details
2a. Third Party Contractor Performed All Excavating And Restoration.
Est Cost Unintentional Release
36000.0
Prpty
88000.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
220.0
Normal Psig
220.0
Mop Psig
225.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Accident Identifier
Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations)
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
Incident was clearly caused by 3rd party excavation. Control room operators not involved with dig safe markouts.
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
Yes
Public Row Ind
Yes
Public Subtype
City Street
Pipeline Easement Row Ind
Yes
Power Transmission Row Ind
Yes
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Sewer (Sanitary/storm)
One Call Notified Ind
Yes
One Call Ticket Num
8.08115e+11
One Call Center Name
Yes, Dig Safely New York.
Locator Type
Contract Locator
Visible Marks
No
Service Interruption
Yes
Service Interruption Hours
118.0
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
D****** D*********
Preparer Title
Manager Upstate Dispatch And Scheduling
Preparer Email
D*****************@us.n****.com
Preparer Telephone
315-460-2615
Authorizer Name
D****** D*********
Authorizer Title
Manager Upstate Dispatch And Scheduling
Authorizer Telephone
315-460-2615
Authorizer Email
D*****************@us.n****.com
Narrative
Third party contractor was excavating sewer to make repairs caused by previous excavating damage caused by same contractor. Contractor called dig safe requesting mark-out for pipeline facilities in area. Dig safe issued ticket, national grid received ticket, national grid locators were in the process of locating facilities, but had not yet completed mark-outs. Contractor commenced excavation activities 24 hours in advance of first allowable excavation date. Contractor subsequently was issued a citation by new york state public service commission related to insufficient notification. Excavator punctured 12 inch steel pipeline operating at 220 psig. Approximately 20 residents were evacuated by fire officials. National grid personnel controlled the escaping gas by closing isolating valves on either side of damaged section. No customer interruptions resulted, although damaged section of pipeline was removed from service. Escaping gas did not ignite or explode. There were no injuries requiring hospitalization. Escaping gas was controlled within 1 hour of notification.
| Occurred At | 2011-08-10 11:10:00 |
|---|---|
| Year | 2011 |
| Report Received Date | 2011-09-07 00:00:00 |
| Iyear | 2011.0 |
| Report Number | 20110327.0 |
| Supplemental Number | 15314.0 |
| Report Type | Original |
| Operator Id | 13480 PHMSA Enforcement |
| Name | Niagara Mohawk Power Corp |
| Operator Street Address | 300 Erie Boulevard West |
| Operator City Name | Syracuse |
| Operator State Abbreviation | NY |
| Operator Postal Code | 13202 |
| Local Datetime | 2011-08-10 11:10:00 |
| Location Street Address | Woodlake Rd |
| Location City Name | Albany |
| Location County Name | Albany |
| Location State Abbreviation | NY |
| Location Postal Code | 12203 |
| Location Latitude | 42.679202 Google Maps OpenStreetMap |
| Location Longitude | -73.846482 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2011-08-11 12:35:00 |
| Nrc Rpt Num | 985628 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 7495.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 20.0 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1967.0 |
| Pipe Diameter | 12.0 |
| Pipe Specification | Api 5l Grade B |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Erw |
| Wt Steel | 0.25 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 7.0 |
| Puncture Circum | 6.3 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 33000.0 |
| Est Cost Emergency | 7000.0 |
| Est Cost Other | 12000.0 |
| Est Cost Other Details | 2a. Third Party Contractor Performed All Excavating And Restoration. |
| Est Cost Unintentional Release | 36000.0 |
| Prpty | 88000.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 220.0 |
| Normal Psig | 220.0 |
| Mop Psig | 225.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Accident Identifier | Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations) |
| 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 | Incident was clearly caused by 3rd party excavation. Control room operators not involved with dig safe markouts. |
| 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 | Yes |
| Public Row Ind | Yes |
| Public Subtype | City Street |
| Pipeline Easement Row Ind | Yes |
| Power Transmission Row Ind | Yes |
| Excavator Type | Contractor |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Sewer (Sanitary/storm) |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 8.08115e+11 |
| One Call Center Name | Yes, Dig Safely New York. |
| Locator Type | Contract Locator |
| Visible Marks | No |
| Service Interruption | Yes |
| Service Interruption Hours | 118.0 |
| Root Cause Category | Notification Issue |
| Root Cause Type | No Notification Made To The One-Call Center/811 |
| Preparer Name | D****** D********* |
| Preparer Title | Manager Upstate Dispatch And Scheduling |
| Preparer Email | D*****************@us.n****.com |
| Preparer Telephone | 315-460-2615 |
| Authorizer Name | D****** D********* |
| Authorizer Title | Manager Upstate Dispatch And Scheduling |
| Authorizer Telephone | 315-460-2615 |
| Authorizer Email | D*****************@us.n****.com |
| Narrative | Third party contractor was excavating sewer to make repairs caused by previous excavating damage caused by same contractor. Contractor called dig safe requesting mark-out for pipeline facilities in area. Dig safe issued ticket, national grid received ticket, national grid locators were in the process of locating facilities, but had not yet completed mark-outs. Contractor commenced excavation activities 24 hours in advance of first allowable excavation date. Contractor subsequently was issued a citation by new york state public service commission related to insufficient notification. Excavator punctured 12 inch steel pipeline operating at 220 psig. Approximately 20 residents were evacuated by fire officials. National grid personnel controlled the escaping gas by closing isolating valves on either side of damaged section. No customer interruptions resulted, although damaged section of pipeline was removed from service. Escaping gas did not ignite or explode. There were no injuries requiring hospitalization. Escaping gas was controlled within 1 hour of notification. |
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