Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2025-06-05 — TN
Operator
Middle Tennessee Natural Gas Util Dist
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$195,282
Incident datetime
2025-06-05 00:00 UTC
Report number
Location
TN, WARREN
Narrative
A contractor was installing a sewer main using a directional driller. During the process the contractor drilled into an 8-inch distribution main. Originally when this incident occurred the price point for damage was suspected to be around the (30000) dollar range. It was after further investigation that an additional (400) feet of line was damaged and need to be replaced, upping the price point for damages.
Detailed record list
Report Received Date
2025-06-05 00:00:00
Iyear
2025.0
Report Number
20250034.0
Supplemental Number
40992.0
Report Type
Original
Operator Id
12438
Name
Middle Tennessee Natural Gas Util Dist
Operator Street Address
P.o. Box 670, 1030 West Broad St
Operator City Name
Smithville
Operator State Abbreviation
TN
Operator Postal Code
37166.0
Time Zone
Central
Daylight Savings Ind
Yes
Location Street Address
9700 Manchester Hwy
Location City Name
Morrison
Location County Name
Warren
Location State Abbreviation
TN
Location Postal Code
37357.0
Location Latitude
35.60574
Location Longitude
-85.91001
Flow Cont Key Crit Ind
Yes
Flow Cont Service Valve Ind
Yes
Flow Cont Meter Reg Ind
Yes
Nrc Rpt Num
1431008.0
Commodity Released Type
Natural Gas
Unintentional Release
1693.0
Intentional Release
408.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Num Pub Evacuated
0.0
Communication State Fed Ind
Yes
Party Initiated Communication
Local/state/federal Emergency Responder
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
168.0
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Municipally Owned
System Part Involved
Main
Installation Year
1990.0
Manufactured Year
1990.0
Pipe Diameter
8.0
Pipe Specification
Api 5l
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Longitudinal Erw - Unknown Frequency
Wt Steel
0.21
Release Type
Mechanical Puncture
Puncture Axial
1.5
Puncture Circum
2.0
Class Location Type
Class 1 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
195282.0
Est Cost Emergency
13500.0
Est Cost Other
0.0
Gas Cost In Mcf
9.54
Est Cost Unintentional Release
16151.0
Est Cost Intentional Release
3892.0
Prpty
228825.0
Commercial Affected
41.0
Industrial Affected
11.0
Residences Affected
122.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
122.0
Num Business Building Affctd
52.0
Accident Psig
296.0
Normal Psig
296.0
Mop Psig
350.0
Mop Cfr Section
192.619(A)(2)
Maop Established Date
1990-05-07 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Injection Pump
Gas Odorized Lvl Not Msrd Ind
Yes
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 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
Damage was caused by a 3rd party and a controller had no effect on the outcome.
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
State Law Exempt Ind
No
Notify Cga Dirt
No
Private Row Ind
Yes
Private Subtype
Private Landowner
Pipeline Easement Row Ind
Yes
Joint Trench Ind
No
Cross Bore Ind
Yes
Depth Of Grade
Measured Depth From Grade
Depth Of Grade Detail
168
Excavator Type
Contractor
Excavator Equipment
Directional Drilling
Work Performed
Sewer (Sanitary/storm)
One Call Notified Ind
Yes
One Call Ticket Num
250993311.0
White Lined Ind
Yes
Locator Type
Facility Owner
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
13.0
Root Cause Category
Excavation Issue
Root Cause Type
Excavator Dug Prior To Verifying Marks By Test-Hole (Pothole)
Preparer Name
M*** S*******
Preparer Title
Vice President - Engineering
Preparer Email
M********@m***.com
Preparer Telephone
931-754-3515
Local Contact Name
M*** S*******
Local Contact Email
M********@m***.com
Local Contact Telephone
931-754-3515
Authorizer Name
M*** S*******
Authorizer Title
Vice President - Engineering
Authorizer Telephone
931-754-3515
Authorizer Email
M********@m***.com
Narrative
A contractor was installing a sewer main using a directional driller. During the process the contractor drilled into an 8-inch distribution main. Originally when this incident occurred the price point for damage was suspected to be around the (30000) dollar range. It was after further investigation that an additional (400) feet of line was damaged and need to be replaced, upping the price point for damages.
| Report Received Date | 2025-06-05 00:00:00 |
|---|---|
| Iyear | 2025.0 |
| Report Number | 20250034.0 |
| Supplemental Number | 40992.0 |
| Report Type | Original |
| Operator Id | 12438 PHMSA Enforcement |
| Name | Middle Tennessee Natural Gas Util Dist |
| Operator Street Address | P.o. Box 670, 1030 West Broad St |
| Operator City Name | Smithville |
| Operator State Abbreviation | TN |
| Operator Postal Code | 37166.0 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Street Address | 9700 Manchester Hwy |
| Location City Name | Morrison |
| Location County Name | Warren |
| Location State Abbreviation | TN |
| Location Postal Code | 37357.0 |
| Location Latitude | 35.60574 Google Maps OpenStreetMap |
| Location Longitude | -85.91001 Google Maps OpenStreetMap |
| Flow Cont Key Crit Ind | Yes |
| Flow Cont Service Valve Ind | Yes |
| Flow Cont Meter Reg Ind | Yes |
| Nrc Rpt Num | 1431008.0 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1693.0 |
| Intentional Release | 408.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Num Pub Evacuated | 0.0 |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Local/state/federal Emergency Responder |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 168.0 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Municipally Owned |
| System Part Involved | Main |
| Installation Year | 1990.0 |
| Manufactured Year | 1990.0 |
| Pipe Diameter | 8.0 |
| Pipe Specification | Api 5l |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Longitudinal Erw - Unknown Frequency |
| Wt Steel | 0.21 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.5 |
| Puncture Circum | 2.0 |
| Class Location Type | Class 1 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 195282.0 |
| Est Cost Emergency | 13500.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 9.54 |
| Est Cost Unintentional Release | 16151.0 |
| Est Cost Intentional Release | 3892.0 |
| Prpty | 228825.0 |
| Commercial Affected | 41.0 |
| Industrial Affected | 11.0 |
| Residences Affected | 122.0 |
| Num Persons Hosp Not Ovnght | 0.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 122.0 |
| Num Business Building Affctd | 52.0 |
| Accident Psig | 296.0 |
| Normal Psig | 296.0 |
| Mop Psig | 350.0 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Maop Established Date | 1990-05-07 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Injection Pump |
| Gas Odorized Lvl Not Msrd Ind | Yes |
| 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 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 | Damage was caused by a 3rd party and a controller had no effect on the outcome. |
| 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 |
| State Law Exempt Ind | No |
| Notify Cga Dirt | No |
| Private Row Ind | Yes |
| Private Subtype | Private Landowner |
| Pipeline Easement Row Ind | Yes |
| Joint Trench Ind | No |
| Cross Bore Ind | Yes |
| Depth Of Grade | Measured Depth From Grade |
| Depth Of Grade Detail | 168 |
| Excavator Type | Contractor |
| Excavator Equipment | Directional Drilling |
| Work Performed | Sewer (Sanitary/storm) |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 250993311.0 |
| White Lined Ind | Yes |
| Locator Type | Facility Owner |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 13.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Excavator Dug Prior To Verifying Marks By Test-Hole (Pothole) |
| Preparer Name | M*** S******* |
| Preparer Title | Vice President - Engineering |
| Preparer Email | M********@m***.com |
| Preparer Telephone | 931-754-3515 |
| Local Contact Name | M*** S******* |
| Local Contact Email | M********@m***.com |
| Local Contact Telephone | 931-754-3515 |
| Authorizer Name | M*** S******* |
| Authorizer Title | Vice President - Engineering |
| Authorizer Telephone | 931-754-3515 |
| Authorizer Email | M********@m***.com |
| Narrative | A contractor was installing a sewer main using a directional driller. During the process the contractor drilled into an 8-inch distribution main. Originally when this incident occurred the price point for damage was suspected to be around the (30000) dollar range. It was after further investigation that an additional (400) feet of line was damaged and need to be replaced, upping the price point for damages. |
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