Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2016-12-14 — ID
Operator
Intermountain Gas Co
Cause
Equipment Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$9,972
Incident datetime
2016-12-14 17:39
Report number
Location
ID, ADA COUNTY
Narrative
Pilot regulator filter failure due to contaminants in filter - caused over pressure and the relief to blow. Igc requested this incident be retracted, and was denied by brian pierzina, PHMSA accident investigator. Igc disagrees with this decision and is working with ingaa, who is seeking clarification from PHMSA leadership on the definition of an incident, since the rulemaking language in 2010 supports that regulator station relief's in excess of 3m cubic feet should not be reported as incidents. -lance elroy, igc director of operations. 2-8-18.
Detailed record list
Occurred At
2016-12-14 17:39:00
Year
2016
Report Received Date
2016-12-28 00:00:00
Iyear
2016.0
Report Number
20160128.0
Supplemental Number
16794.0
Report Type
Supplemental Final
Operator Id
8160
Name
Intermountain Gas Co
Operator Street Address
555 South Cole Road
Operator City Name
Boise
Operator State Abbreviation
ID
Operator Postal Code
83709
Local Datetime
2016-12-14 17:33:00
Location Street Address
4056 N Can-Ada Rd, Nampa
Location City Name
Not Within A Municipality
Location County Name
Ada County
Location State Abbreviation
ID
Location Postal Code
83687
Location Latitude
43.644039
Location Longitude
-116.499927
Nrc Rpt Num
Nrc Notification Required But Not Made
Commodity Released Type
Natural Gas
Unintentional Release
12431.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2016-12-14 17:39:00
On Site Datetime
2016-12-14 19:15:00
Federal
No
Location Type
Operator-Controlled Property
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
2008.0
Material Involved
Steel
Release Type
Other
Release Type Details
Regulator Relief Blowing Gas
Class Location Type
Class 1 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
9972.0
Est Cost Emergency
2493.0
Est Cost Other
0.0
Est Cost Unintentional Release
70703.0
Prpty
83168.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
544.0
Normal Psig
495.0
Mop Psig
500.0
Accident Pressure
Pressure Exceeded Maop, But Did Not Exceed The Applicable Allowance In 192.201
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
Scada worked as intended, alarm due to high pressure
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Pressure Regulator Ind
Yes
Preparer Name
L**** E****
Preparer Title
Director Of Operations Services
Preparer Email
L**********@i*****.com
Preparer Telephone
208-377-6122
Authorizer Name
H*** G********
Authorizer Title
Vp Operations
Authorizer Telephone
208-377-6086
Authorizer Email
H*************@i*****.com
Narrative
Pilot regulator filter failure due to contaminants in filter - caused over pressure and the relief to blow. Igc requested this incident be retracted, and was denied by brian pierzina, PHMSA accident investigator. Igc disagrees with this decision and is working with ingaa, who is seeking clarification from PHMSA leadership on the definition of an incident, since the rulemaking language in 2010 supports that regulator station relief's in excess of 3m cubic feet should not be reported as incidents. -lance elroy, igc director of operations. 2-8-18.
| Occurred At | 2016-12-14 17:39:00 |
|---|---|
| Year | 2016 |
| Report Received Date | 2016-12-28 00:00:00 |
| Iyear | 2016.0 |
| Report Number | 20160128.0 |
| Supplemental Number | 16794.0 |
| Report Type | Supplemental Final |
| Operator Id | 8160 PHMSA Enforcement |
| Name | Intermountain Gas Co |
| Operator Street Address | 555 South Cole Road |
| Operator City Name | Boise |
| Operator State Abbreviation | ID |
| Operator Postal Code | 83709 |
| Local Datetime | 2016-12-14 17:33:00 |
| Location Street Address | 4056 N Can-Ada Rd, Nampa |
| Location City Name | Not Within A Municipality |
| Location County Name | Ada County |
| Location State Abbreviation | ID |
| Location Postal Code | 83687 |
| Location Latitude | 43.644039 Google Maps OpenStreetMap |
| Location Longitude | -116.499927 Google Maps OpenStreetMap |
| Nrc Rpt Num | Nrc Notification Required But Not Made NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 12431.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2016-12-14 17:39:00 |
| On Site Datetime | 2016-12-14 19:15:00 |
| Federal | No |
| Location Type | Operator-Controlled Property |
| 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 | 2008.0 |
| Material Involved | Steel |
| Release Type | Other |
| Release Type Details | Regulator Relief Blowing Gas |
| Class Location Type | Class 1 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 9972.0 |
| Est Cost Emergency | 2493.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 70703.0 |
| Prpty | 83168.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 544.0 |
| Normal Psig | 495.0 |
| Mop Psig | 500.0 |
| Accident Pressure | Pressure Exceeded Maop, But Did Not Exceed The Applicable Allowance In 192.201 |
| 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 | Scada worked as intended, alarm due to high pressure |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Pressure Regulator Ind | Yes |
| Preparer Name | L**** E**** |
| Preparer Title | Director Of Operations Services |
| Preparer Email | L**********@i*****.com |
| Preparer Telephone | 208-377-6122 |
| Authorizer Name | H*** G******** |
| Authorizer Title | Vp Operations |
| Authorizer Telephone | 208-377-6086 |
| Authorizer Email | H*************@i*****.com |
| Narrative | Pilot regulator filter failure due to contaminants in filter - caused over pressure and the relief to blow. Igc requested this incident be retracted, and was denied by brian pierzina, PHMSA accident investigator. Igc disagrees with this decision and is working with ingaa, who is seeking clarification from PHMSA leadership on the definition of an incident, since the rulemaking language in 2010 supports that regulator station relief's in excess of 3m cubic feet should not be reported as incidents. -lance elroy, igc director of operations. 2-8-18. |
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