Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2023-02-10 — IL
Operator
Northern Illinois Gas Co
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$353,550
Incident datetime
2023-02-10 00:00 UTC
Report number
Location
IL, KANE
Narrative
Third party contractor, verita telecommunications corp, was directional drilling along the east side of mclean blvd, at/near the intersection of big timber rd. The verita hdd crew was drilling across big timber rd. A verita crew-person called a nicor gas employee at 15:49 on january 10, 2023, indicating they smelled gas. Company emergency responders were dispatched in response to the notification. Upon evaluation, it was determined that a 12-inch main had been damaged and the system could be isolated using two existing valves (east & west of the damage) and a line stop fitting (north of the damage). The release was secured at approximately 22:42 on january 11, 2023. Nicor installed a 250-foot long, 4-inch bypass to minimize the risk of additional gas service interruption to customers that were not already impacted by the incident. The bypass was in service at approximately 03:00 (24-hour time) on january 12, 2023. The damaged section of main was exposed and examined, and a clamp was installed to repair the damaged section. The system was returned to service in sections, with the last section returning to normal operation by 21:46 on january 12, 2023. At the time of the incident, there was a valid one-call ticket and markings were accurate. The contractor indicated they potholed down to 4.5 feet and observed the top of what they thought was a gas main. There was no evidence that the contractor had exposed the 12-inch gas main to observe the drilling equipment pass the gas main during their operation. The damage to the 12-inch main occurred at a depth of 9.5 feet.
Detailed record list
Report Received Date
2023-02-10 00:00:00
Iyear
2023.0
Report Number
20230008.0
Supplemental Number
37951.0
Report Type
Supplemental Final
Operator Id
13710
Name
Northern Illinois Gas Co
Operator Street Address
P.o. Box 190, Rt 59 & I-88
Operator City Name
Aurora
Operator State Abbreviation
IL
Operator Postal Code
60507.0
Time Zone
Central
Daylight Savings Ind
No
Location Street Address
1520 Big Timber Rd
Location City Name
Elgin
Location County Name
Kane
Location State Abbreviation
IL
Location Postal Code
60123.0
Location Latitude
42.058531
Location Longitude
-88.315312
Flow Cont Key Crit Ind
Yes
Flow Cont Stopple Fitng Ind
Yes
Nrc Rpt Num
1357409.0
Commodity Released Type
Natural Gas
Unintentional Release
1830.0
Intentional Release
21.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Num Pub Evacuated
50.0
Communication State Fed Ind
Yes
Party Initiated Communication
Local/state/federal Emergency Responder
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
114.0
Other Underground Facilities
No
Crossing
Yes
Road Crossing Ind
Yes
Road Type
Uncased
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1958.0
Pipe Diameter
12.0
Pipe Specification
Api 5l
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.219
Release Type
Mechanical Puncture
Puncture Axial
1.0
Puncture Circum
0.5
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
353550.0
Est Cost Emergency
284225.0
Est Cost Other
0.0
Gas Cost In Mcf
6.59
Est Cost Unintentional Release
12060.0
Est Cost Intentional Release
138.0
Prpty
649973.0
Commercial Affected
12.0
Industrial Affected
0.0
Residences Affected
0.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
0.0
Num Business Building Affctd
6.0
Accident Psig
160.0
Normal Psig
160.6
Mop Psig
165.0
Mop Cfr Section
192.621 M
Maop Established Date
1979-06-30 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Combination Of Odorization Types
Gas Odorized Lvl Not Msrd Ind
Yes
Scada In Place Ind
No
Accident Identifier
Notification From Third Party That Caused The Incident
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
Gas main at incident location is not monitored by scada.
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
Excavator Ind
Yes
State Law Exempt Ind
No
Notify Cga Dirt
No
Public Row Ind
Yes
Public Subtype
City Street
Excavator Type
Contractor
Excavator Equipment
Directional Drilling
Work Performed
Telecommunications
One Call Notified Ind
Yes
One Call Center Name
Julie Other Julie Dig #s - A223211418 A223402053
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
41.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Excavation Practice Not Listed Above
Preparer Name
J*** L D******
Preparer Title
Manager Ops Qa
Preparer Email
J******@s*********.com
Preparer Telephone
630-918-4934
Authorizer Name
L****** Q******
Authorizer Title
Manager Compliance And Qa
Authorizer Telephone
630-514-2036
Authorizer Email
L******@s*********.com
Narrative
Third party contractor, verita telecommunications corp, was directional drilling along the east side of mclean blvd, at/near the intersection of big timber rd. The verita hdd crew was drilling across big timber rd. A verita crew-person called a nicor gas employee at 15:49 on january 10, 2023, indicating they smelled gas. Company emergency responders were dispatched in response to the notification. Upon evaluation, it was determined that a 12-inch main had been damaged and the system could be isolated using two existing valves (east & west of the damage) and a line stop fitting (north of the damage). The release was secured at approximately 22:42 on january 11, 2023. Nicor installed a 250-foot long, 4-inch bypass to minimize the risk of additional gas service interruption to customers that were not already impacted by the incident. The bypass was in service at approximately 03:00 (24-hour time) on january 12, 2023. The damaged section of main was exposed and examined, and a clamp was installed to repair the damaged section. The system was returned to service in sections, with the last section returning to normal operation by 21:46 on january 12, 2023. At the time of the incident, there was a valid one-call ticket and markings were accurate. The contractor indicated they potholed down to 4.5 feet and observed the top of what they thought was a gas main. There was no evidence that the contractor had exposed the 12-inch gas main to observe the drilling equipment pass the gas main during their operation. The damage to the 12-inch main occurred at a depth of 9.5 feet.
| Report Received Date | 2023-02-10 00:00:00 |
|---|---|
| Iyear | 2023.0 |
| Report Number | 20230008.0 |
| Supplemental Number | 37951.0 |
| Report Type | Supplemental Final |
| Operator Id | 13710 PHMSA Enforcement |
| Name | Northern Illinois Gas Co |
| Operator Street Address | P.o. Box 190, Rt 59 & I-88 |
| Operator City Name | Aurora |
| Operator State Abbreviation | IL |
| Operator Postal Code | 60507.0 |
| Time Zone | Central |
| Daylight Savings Ind | No |
| Location Street Address | 1520 Big Timber Rd |
| Location City Name | Elgin |
| Location County Name | Kane |
| Location State Abbreviation | IL |
| Location Postal Code | 60123.0 |
| Location Latitude | 42.058531 Google Maps OpenStreetMap |
| Location Longitude | -88.315312 Google Maps OpenStreetMap |
| Flow Cont Key Crit Ind | Yes |
| Flow Cont Stopple Fitng Ind | Yes |
| Nrc Rpt Num | 1357409.0 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1830.0 |
| Intentional Release | 21.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Num Pub Evacuated | 50.0 |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Local/state/federal Emergency Responder |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 114.0 |
| Other Underground Facilities | No |
| Crossing | Yes |
| Road Crossing Ind | Yes |
| Road Type | Uncased |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1958.0 |
| Pipe Diameter | 12.0 |
| Pipe Specification | Api 5l |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Wt Steel | 0.219 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.0 |
| Puncture Circum | 0.5 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 353550.0 |
| Est Cost Emergency | 284225.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 6.59 |
| Est Cost Unintentional Release | 12060.0 |
| Est Cost Intentional Release | 138.0 |
| Prpty | 649973.0 |
| Commercial Affected | 12.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Num Persons Hosp Not Ovnght | 0.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 0.0 |
| Num Business Building Affctd | 6.0 |
| Accident Psig | 160.0 |
| Normal Psig | 160.6 |
| Mop Psig | 165.0 |
| Mop Cfr Section | 192.621 M View CFR 49 §192 |
| Maop Established Date | 1979-06-30 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Combination Of Odorization Types |
| Gas Odorized Lvl Not Msrd Ind | Yes |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Third Party That Caused The Incident |
| 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 | Gas main at incident location is not monitored by scada. |
| 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 |
| Excavator Ind | Yes |
| State Law Exempt Ind | No |
| Notify Cga Dirt | No |
| Public Row Ind | Yes |
| Public Subtype | City Street |
| Excavator Type | Contractor |
| Excavator Equipment | Directional Drilling |
| Work Performed | Telecommunications |
| One Call Notified Ind | Yes |
| One Call Center Name | Julie Other Julie Dig #s - A223211418 A223402053 |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 41.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Excavation Practice Not Listed Above |
| Preparer Name | J*** L D****** |
| Preparer Title | Manager Ops Qa |
| Preparer Email | J******@s*********.com |
| Preparer Telephone | 630-918-4934 |
| Authorizer Name | L****** Q****** |
| Authorizer Title | Manager Compliance And Qa |
| Authorizer Telephone | 630-514-2036 |
| Authorizer Email | L******@s*********.com |
| Narrative | Third party contractor, verita telecommunications corp, was directional drilling along the east side of mclean blvd, at/near the intersection of big timber rd. The verita hdd crew was drilling across big timber rd. A verita crew-person called a nicor gas employee at 15:49 on january 10, 2023, indicating they smelled gas. Company emergency responders were dispatched in response to the notification. Upon evaluation, it was determined that a 12-inch main had been damaged and the system could be isolated using two existing valves (east & west of the damage) and a line stop fitting (north of the damage). The release was secured at approximately 22:42 on january 11, 2023. Nicor installed a 250-foot long, 4-inch bypass to minimize the risk of additional gas service interruption to customers that were not already impacted by the incident. The bypass was in service at approximately 03:00 (24-hour time) on january 12, 2023. The damaged section of main was exposed and examined, and a clamp was installed to repair the damaged section. The system was returned to service in sections, with the last section returning to normal operation by 21:46 on january 12, 2023. At the time of the incident, there was a valid one-call ticket and markings were accurate. The contractor indicated they potholed down to 4.5 feet and observed the top of what they thought was a gas main. There was no evidence that the contractor had exposed the 12-inch gas main to observe the drilling equipment pass the gas main during their operation. The damage to the 12-inch main occurred at a depth of 9.5 feet. |
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