Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2020-04-29 — PA
Operator
Peoples Natural Gas Company Llc
Cause
Incorrect Operation
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2020-04-29 09:40
Report number
Location
PA, INDIANA
Narrative
During a routine annual inspection of district regulator station ls-260, peoples employees needed to isolate the regulator from the system in order to inspect it. In order to isolate that regulator, the station by-pass needs to be manually operated to maintain outlet pressure. The employees placed a gauge on the relief valve piping, which was upstream and now isolated from the outlet/downstream piping. While manually operating the station's by-pass they were unable to monitor the outlet pressure, resulting in an over pressurization of the downstream system in the town of robinson, pa. Supplemental question asked by nrc: were the employees involved with this incident re-qualified on the tasks that led to the over pressurization? On april 29, 2020, there were three employees on site performing the annual inspection of district regulator station ls-260, robinson, pa when the over pressurization occurred. All three individuals were re-qualified on june 23, 2020 on the tasks that led to that over pressurization. During the time period from 4/29/2020 until their re-qualification on 6/23/2020, none of these individuals were permitted to perform annual district regulator inspections independently, but were assigned to work with senior district regulator oq certified specialists.
Detailed record list
Occurred At
2020-04-29 09:40:00
Year
2020
Report Received Date
2020-05-29 00:00:00
Iyear
2020.0
Report Number
20200052.0
Supplemental Number
34663.0
Report Type
Supplemental Final
Operator Id
15350
Name
Peoples Natural Gas Company Llc
Operator Street Address
375 North Shore Drive Suite 600
Operator City Name
Pittsburgh
Operator State Abbreviation
PA
Operator Postal Code
15212
Local Datetime
2020-04-29 09:40:00
Time Zone
Eastern
Daylight Savings Ind
No
Location Street Address
111 Jefferson Street
Location City Name
Robinson
Location County Name
Indiana
Location State Abbreviation
PA
Location Postal Code
15949
Location Latitude
40.399493
Location Longitude
-79.145934
Flow Cont Key Crit Ind
Yes
Nrc Rpt Datetime
2020-04-30 16:58:00
Nrc Rpt Num
1276429
Commodity Released Type
Natural Gas
Unintentional Release
0.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2020-04-29 09:40:00
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Initial Responder Com Datetime
2020-04-29 12:05:00
On Site Datetime
2020-04-29 09:40:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance (E.g. Value Or Regulator Station, Outdoor Meter Set)
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
District Regulator/metering Station
Installation Year
1981.0
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Release Type
Other
Release Type Details
Over Pressurization. No Release Of Gas.
Class Location Type
Class 2 Location
Est Cost Oper Paid
47958.0
Est Cost Prop Damage
0.0
Est Cost Emergency
101840.0
Est Cost Other
0.0
Gas Cost In Mcf
7.7621
Est Cost Unintentional Release
0.0
Est Cost Intentional Release
0.0
Prpty
149798.0
Commercial Affected
2.0
Industrial Affected
0.0
Residences Affected
219.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
219.0
Num Business Building Affctd
2.0
Accident Psig
1.63
Normal Psig
0.5
Mop Psig
1.0
Mop Cfr Section
192.623
Maop Established Date
2015-11-23 00:00:00
Accident Pressure
Pressure Exceeded The Applicable Allowance In 192.201
Gas Odorized System Type
Injection Pump
Gas Odorized Level
0.7
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
Yes
Num Employees Tested
3
Num Employees Failed
0
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Pipeline Or Equipment Overpressured
Operation Type
Pipeline Or Equipment Overpressured
Related Failure Follow Ind
Yes
Category Type
Routine Maintenance
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
D***** P* K****
Preparer Title
Manager Process Work Management
Preparer Email
D***********@p**********.com
Preparer Telephone
724-444-3251
Local Contact Name
D***** P* K****
Local Contact Email
D***********@p**********.com
Local Contact Telephone
724-444-3251
Authorizer Name
J***** A* G********
Authorizer Title
Sr. Vice President Rates - Regulatory Affairs
Authorizer Telephone
412-208-7905
Authorizer Email
J*****************@p**********.com
Narrative
During a routine annual inspection of district regulator station ls-260, peoples employees needed to isolate the regulator from the system in order to inspect it. In order to isolate that regulator, the station by-pass needs to be manually operated to maintain outlet pressure. The employees placed a gauge on the relief valve piping, which was upstream and now isolated from the outlet/downstream piping. While manually operating the station's by-pass they were unable to monitor the outlet pressure, resulting in an over pressurization of the downstream system in the town of robinson, pa. Supplemental question asked by nrc: were the employees involved with this incident re-qualified on the tasks that led to the over pressurization? On april 29, 2020, there were three employees on site performing the annual inspection of district regulator station ls-260, robinson, pa when the over pressurization occurred. All three individuals were re-qualified on june 23, 2020 on the tasks that led to that over pressurization. During the time period from 4/29/2020 until their re-qualification on 6/23/2020, none of these individuals were permitted to perform annual district regulator inspections independently, but were assigned to work with senior district regulator oq certified specialists.
| Occurred At | 2020-04-29 09:40:00 |
|---|---|
| Year | 2020 |
| Report Received Date | 2020-05-29 00:00:00 |
| Iyear | 2020.0 |
| Report Number | 20200052.0 |
| Supplemental Number | 34663.0 |
| Report Type | Supplemental Final |
| Operator Id | 15350 PHMSA Enforcement |
| Name | Peoples Natural Gas Company Llc |
| Operator Street Address | 375 North Shore Drive Suite 600 |
| Operator City Name | Pittsburgh |
| Operator State Abbreviation | PA |
| Operator Postal Code | 15212 |
| Local Datetime | 2020-04-29 09:40:00 |
| Time Zone | Eastern |
| Daylight Savings Ind | No |
| Location Street Address | 111 Jefferson Street |
| Location City Name | Robinson |
| Location County Name | Indiana |
| Location State Abbreviation | PA |
| Location Postal Code | 15949 |
| Location Latitude | 40.399493 Google Maps OpenStreetMap |
| Location Longitude | -79.145934 Google Maps OpenStreetMap |
| Flow Cont Key Crit Ind | Yes |
| Nrc Rpt Datetime | 2020-04-30 16:58:00 |
| Nrc Rpt Num | 1276429 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 0.0 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2020-04-29 09:40:00 |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Operator |
| Initial Responder Com Datetime | 2020-04-29 12:05:00 |
| On Site Datetime | 2020-04-29 09:40:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance (E.g. Value Or Regulator Station, Outdoor Meter Set) |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | District Regulator/metering Station |
| Installation Year | 1981.0 |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Release Type | Other |
| Release Type Details | Over Pressurization. No Release Of Gas. |
| Class Location Type | Class 2 Location |
| Est Cost Oper Paid | 47958.0 |
| Est Cost Prop Damage | 0.0 |
| Est Cost Emergency | 101840.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 7.7621 |
| Est Cost Unintentional Release | 0.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 149798.0 |
| Commercial Affected | 2.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 219.0 |
| Num Persons Hosp Not Ovnght | 0.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 219.0 |
| Num Business Building Affctd | 2.0 |
| Accident Psig | 1.63 |
| Normal Psig | 0.5 |
| Mop Psig | 1.0 |
| Mop Cfr Section | 192.623 View CFR 49 §192 |
| Maop Established Date | 2015-11-23 00:00:00 |
| Accident Pressure | Pressure Exceeded The Applicable Allowance In 192.201 |
| Gas Odorized System Type | Injection Pump |
| Gas Odorized Level | 0.7 |
| 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 | Yes |
| Num Employees Tested | 3 |
| Num Employees Failed | 0 |
| Contractor Drug Test Ind | No |
| Cause | Incorrect Operation |
| Cause Details | Pipeline Or Equipment Overpressured |
| Operation Type | Pipeline Or Equipment Overpressured |
| Related Failure Follow Ind | Yes |
| Category Type | Routine Maintenance |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | D***** P* K**** |
| Preparer Title | Manager Process Work Management |
| Preparer Email | D***********@p**********.com |
| Preparer Telephone | 724-444-3251 |
| Local Contact Name | D***** P* K**** |
| Local Contact Email | D***********@p**********.com |
| Local Contact Telephone | 724-444-3251 |
| Authorizer Name | J***** A* G******** |
| Authorizer Title | Sr. Vice President Rates - Regulatory Affairs |
| Authorizer Telephone | 412-208-7905 |
| Authorizer Email | J*****************@p**********.com |
| Narrative | During a routine annual inspection of district regulator station ls-260, peoples employees needed to isolate the regulator from the system in order to inspect it. In order to isolate that regulator, the station by-pass needs to be manually operated to maintain outlet pressure. The employees placed a gauge on the relief valve piping, which was upstream and now isolated from the outlet/downstream piping. While manually operating the station's by-pass they were unable to monitor the outlet pressure, resulting in an over pressurization of the downstream system in the town of robinson, pa. Supplemental question asked by nrc: were the employees involved with this incident re-qualified on the tasks that led to the over pressurization? On april 29, 2020, there were three employees on site performing the annual inspection of district regulator station ls-260, robinson, pa when the over pressurization occurred. All three individuals were re-qualified on june 23, 2020 on the tasks that led to that over pressurization. During the time period from 4/29/2020 until their re-qualification on 6/23/2020, none of these individuals were permitted to perform annual district regulator inspections independently, but were assigned to work with senior district regulator oq certified specialists. |
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