# Failure Report- Shell Pipeline Company, LP 11/16/10

- **operation:** document
- **citation:** PHMSA FIR, Shell Pipeline Company, LP, 2010-11-16
- **title:** Failure Report- Shell Pipeline Company, LP 11/16/10
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2012-12-26
- **effective on:** 2010-11-16
- **summary:** Shell Pipeline Company, LP; Hazardous Liquid; LA; failure 2010-11-16; apparent cause: Material Failure Pipe.
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- **app url:** https://regulus.evalyn.ai/document/phmsa-fir-failure-report-shell-pipeline-company-lp-111610
- **source url:** https://www.phmsa.dot.gov/safety-reports/failure-report-shell-pipeline-company-lp-111610
**body:**

<<<PAGE 1>>>

DOT US Department of Transportation
PHMSA Pipelines and Hazardous Materials Safety Administration
OPS Office of Pipeline Safety
Southwest Region
Investigators Jon Manning, Noah Matthews
Region Director R.M. Seeley
Date of Report June 29, 2012
Subject Failure Investigation Report – Shell Houma to Houston (Ho‐Ho)
Pipeline
Operator, Location, & Consequences
Date of Failure 11/16/2010
Commodity Released Crude Oil
City/County & State Calcasieu Parish, Vinton, Louisiana
OpID & Operator Name 31174, Shell Pipeline Company, LP
Unit # & Unit Name 50664, Houma District West
SMART Activity # 135866
Milepost / Location MP 32.5 approximately 500 feet north of Intercoastal Waterway (ICW)
Type of Failure Corrosion Fatigue Cracking
Fatalities 0
Injuries 0
Description of area Rural Marsh – Near the Intercoastal Waterway
impacted
Property Damage $375,000

<<<PAGE 2>>>

Failure Investigation Report – Shell Pipeline Company LP, Houma to Houston (Ho‐Ho)
Failure Date 11/16/2010
Executive Summary
On November 16, 2010, Shell Pipeline Company, LP (Shell, the Operator) reported a release on its
Houma to Houston 22‐inch crude oil pipeline system. The Operator’s control center in Houston, Texas
received a line balance alarm on the Erath to Port Neches pipeline segment at approximately 2:36 PM
Central Standard Time (CST). The Operator immediately initiated a shut‐down of the pipeline and began
closing mainline block valves. By 2:41 PM CST the segment was isolated and personnel were dispatched
to scout the pipeline segment for a release.
At approximately 4:44 PM CST a third party reported the location of the release to the Shell operations
control center. Shell personnel confirmed the location of the release at approximately 5:15 PM CST and
activated their Oil Spill Response Organization (OSRO) team approximately 15 minutes later. At 6:15 PM
CST, Shell notified the National Response Center. The release was initially estimated by Shell to be
approximately 1,500 barrels but was later revised to 1,030 barrels. The Operator established an incident
command center (ICC) in Houston, TX on November 16 at approximately 7 PM CST and continued
notifying law enforcement authorities and dispatching personnel to the release site to initiate the
cleanup. There was no fire, explosion or injuries reported.
The release occurred on the Houma to Port Neches segment of the pipeline in a rural marsh area near
pipeline Milepost 32.5 approximately 500 feet north of the Intercoastal Waterway (ICW). The
metallurgical evaluation determined the rupture was caused by corrosion fatigue cracking that
penetrated the pipe wall to the point that the remaining wall thickness was not able to withstand the
hoop stress created by the internal pressure.
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<<<PAGE 3>>>

Failure Investigation Report – Shell Pipeline Company LP, Houma to Houston (Ho‐Ho)
Failure Date 11/16/2010
System Details
The Shell Pipeline Company, L.P., Houma to Houston pipeline system (Ho‐Ho pipeline system) transports
crude oil approximately 300 miles from Houma, LA to the Houston, TX area. A drawing of the Shell Ho‐
Ho pipeline system is included in Appendix A. The Ho‐Ho pipeline has a nominal diameter of 22‐inches
from Houma, LA to Port Neches, TX and a nominal diameter of 20‐inches from Port Neches to Houston.
The pipeline traverses a rural unpopulated, relatively flat area of the Gulf coastal plain across
Southwestern Louisiana and Southeast Texas and delivers crude oil to refineries in Louisiana and Texas.
There are high consequence areas, high population areas, and commercially navigable waterways as
defined by 49 CFR 195.450 along the pipeline route. The release occurred on the Houma to Port Neches
segment of the pipeline in a rural marsh area near pipeline Milepost 32.5 approximately 500 feet north
of the Intercoastal Waterway. This location is approximately 10 miles downstream of the Sulphur
Booster Station near Vinton, LA. A map showing the approximate location of the release site is included
in Appendix B.
Pipe Specifications
The pipeline segment where the release occurred consists of a 22‐inch nominal diameter pipe
manufactured by Kaiser Steel. The pipe is double submerged arc welded (DSAW) carbon steel with a
0.312 inch wall thickness, API Grade 5L, X52 installed in 1952. The pipeline was coated with coal tar
enamel and equipped with an impressed current cathodic protection system. The pipeline MOP is 1,050
psig established by a hydrostatic test performed in 1995. The pipeline normally operates at 800 to 900
psig. The discharge pressure at Sulphur Booster Station at the time of the release was 840 psig and the
pipeline pressure at the location of the release was approximately 700 psig. Shell performed an inline‐
inspection (ILI) in 2007 using Magnetic Flux Leakage (MFL) and Caliper tools. The ILI report did not
indicate a required repair at the location of the incident, but did indicate the presence of corrosion with
approximately a 10% wall loss where the failure occurred.
Events Leading up to the Failure
Shell indicates that the Ho‐Ho pipeline was operating normally prior to the line balance alarm at 1:36
PM CST. No previous abnormal operations had been noted. The discharge pressure, up until the
moment of the pipeline failure, recorded at the Sulphur Booster Station, was approximately 840 psig.
The pressure at the site of the rupture was estimated by the Operator to be approximately 700 psig.
Shell records indicate that the intake pressure at the Port Neches Booster Station downstream of the
failure site had been consistently recorded at approximately 240 psig until the pressure dropped to 0
psig at approximately 1:35 PM CST. Operator records showing an event timeline, pressures at Sulphur
and Port Neches Stations, and SCADA Event Summary are included in Appendix C.
Emergency Response
On November 16, 2010 at approximately 2:36 PM, the Shell Pipeline operator on duty at the control
center in Houston, TX received a line balance alarm on the Erath to Port Neches pipeline segment. The
controller observed an increase in flow and a decrease in pressure at the Sulphur booster station and
low flow at the next downstream pump station located near Port Neches, LA. The Shell operator
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<<<PAGE 4>>>

Failure Investigation Report – Shell Pipeline Company LP, Houma to Houston (Ho‐Ho)
Failure Date 11/16/2010
immediately initiated a shut‐down of the pipeline and began closing mainline block valves. By 2:41 PM
CST the segment was isolated and personnel were dispatched to scout the pipeline segment for a
release. The location of the release was called in to the Shell operations control center by a third party
at approximately 4:44 PM CST. Shell personnel traveled the site and confirmed the location of the
release at approximately 5:15 PM CST. The Shell Oil Spill Response Organization (OSRO) team was
activated at approximately 5:26 PM CST and the Operator reported a worst‐case release of 1,500 barrels
to the NRC at 6:15 PM CST. A copy of the telephonic report made by Shell is included in Appendix D.
The Operator established an incident command center (ICC) in Houston, TX on November 16 at
approximately 7 PM CST and continued notifying law enforcement and regulatory authorities as well as
dispatching personnel to the release site to perform cleanup operations. Shell waited until daylight on
November 17 to begin excavating the pipeline but experienced delays due to high levels of benzene
detected at the rupture site. After allowing the benzene to dissipate, excavation of the pipeline
revealed a “fish‐mouth” rupture at approximately the 6 o’clock position. The Operator continued
cleanup operations and began determining pipeline repair requirements November 17. Shell
demobilized the Incident Command Center on November 18 and called the NRC to revise the release
quantity to 1,030 barrels. A copy of the Shell Form 7000‐1 report is included in Appendix E and
photographs of the accident site are included in Appendix F.
Photo 1: Failed Section with Opening at 6 o’clock position
Summary of initial start‐up plan and return‐to‐service
The operator initiated the pipeline repair on November 20 based on a plan determined to be acceptable
by PHMSA. PHMSA also worked with Shell personnel to develop an acceptable safe startup plan. Shell
agreed to evaluate their pipeline system to determine if any other similar integrity threatening
conditions may exist by reevaluating previous In‐Line Inspection (ILI) data and performing an additional
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<<<PAGE 5>>>

Failure Investigation Report – Shell Pipeline Company LP, Houma to Houston (Ho‐Ho)
Failure Date 11/16/2010
ILI with a tool more capable of detecting longitudinal flaws. Pipeline repairs were completed on
November 21 and the pipeline was refilled and restarted on November 24, 2010.
Photo 2: Flanged Repair
Investigation Details
The accident occurred on the Houma to Port Neches segment of the pipeline in a rural, unpopulated
area approximately 10 miles downstream of the Sulphur Booster Station, in Calcasieu Parish near
Vinton, LA. The pipeline rupture occurred 500 feet north of the Intercoastal Waterway (ICW), Latitude
30° 03’ 38” N, Longitude 093° 33’ 04” W.
The failed pipeline segment was removed by cold cutting, packaged for transport, and shipped to Stork
Testing & Metallurgical Consulting, Inc., in Houston, TX for analysis. The failure occurred in an under
bend at approximately the 6 o’clock position where, according to the Stork metallurgical analysis, the
coating likely disbonded allowing the onset of corrosion. Evidence was also found of multiple fatigue
cracks that initiated in the deeper corrosion pits. The operational history of the pipeline indicates that
the pipeline is subject to cyclical loading due to batched shipments of crude oil. The metallurgical
analysis concluded the fatigue cracks that initiated in the corrosion pits weakened the wall of the pipe so
that it could not withstand the hoop stress created by the internal pressure, resulting in the rupture. A
copy of the Stork metallurgical report is included in Appendix G.
Examination of Operator records indicated that in 2007, Shell ran an inline‐inspection (ILI) using
Magnetic Flux Leakage and Caliper tools. The ILI indicated corrosion at the failure location but grading
by the vendor indicated that the wall loss was minimal (approximately 10%) and the Operator did not
excavate the site. A review of the pipeline operations taking place immediately prior to the accident did
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<<<PAGE 6>>>

Failure Investigation Report – Shell Pipeline Company LP, Houma to Houston (Ho‐Ho)
Failure Date 11/16/2010
not indicate the pipeline was being operated outside of the design parameters or that any abnormal
operations had occurred.
Findings & Contributing Factors
A “fish mouth” rupture occurred at the 6 o’clock position on the pipeline and was approximately 36.25
inches long with a width of 4.75 inches at the widest point and was 90 degrees from the longitudinal
weld. The Stork metallurgical analysis determined that the rupture occurred approximately 15‐1/2
inches from the apex of an under bend in the pipeline. Circumferential wrinkles at regular intervals on
the inside surface of the pipe indicated that the bend was likely made in the field which may have
caused the coating to disbond at the failure location. Heavy corrosion was found on the outside surface
of the pipe at the failure site and semi‐elliptical crack surfaces characteristic of fatigue cracks were
found the fracture faces. The operational history indicates that the pipeline has been subjected to cyclic
loading. Testing of the pipe materials did not reveal any manufacturing defects and showed satisfactory
tensile properties consistent with the grade of pipe. Tests of the corrosion deposits were found to have
bacteria that can result in Microbiologically‐Influenced Corrosion (MIC) but the metallurgical analysis did
not make any conclusions as to whether MIC contributed to the external corrosion. The metallurgical
analysis concluded that the failure resulted from fatigue cracks that initiated in the corrosion pits
reducing the strength of the pipe so that it could not contain the hoop stress resulting from the internal
pressure.
Photo 3: Failed “fish‐mouth” section of pipe
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<<<PAGE 7>>>

Failure Investigation Report – Shell Pipeline Company LP, Houma to Houston (Ho‐Ho)
Failure Date 11/16/2010
Appendices
A Drawing of Shell Ho‐Ho Pipeline System
B Pipeline Map Showing Approximate Accident Location
C Events Timeline and Pump Station Pressures, SCADA Event Summary
D Telephonic Notice Report – NRC #960033
E PHMSA Form 7000‐1 Accident Report Prepared by Shell – No. 10100287
F Accident Site Photos and Diagrams
G Stork Metallurgical Report
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<<<PAGE 8>>>

Appendix A, B, C and G
These documents are on file at PHMSA

<<<PAGE 9>>>

Appendix D - NRC Report - No. 960033

<<<PAGE 10>>>

The following NRC report is forwarded for your situational awareness. CMC 6-1863
The information contained in this communication from the Department of Transportation's Crisis Management
you are not an intended recipient of this transmission, you are prohibited from disseminating, distributing, copying
Center (CMC) Watch may be sensitive or privileged and is intended for the sole use of persons or entities named. If
or using the information. If you have received this communication in error, please immediately contact the CMC
Watch at (202) 366-1863 to arrange for the return of this information.
NATIONAL RESPONSE CENTER 1-800-424-8802
***GOVERNMENT USE ONLY***GOVERNMENT USE ONLY***
Information released to a third party shall comply with any
applicable federal and/or state Freedom of Information and Privacy Laws
Incident Report # 960033
INCIDENT DESCRIPTION
*Report taken by: MST2 JAQUELINE ARSENAULT at 19:15 on 16-NOV-10
Incident Type: PIPELINE
Incident Cause: EQUIPMENT FAILURE
Affected Area: MARSH
Incident was discovered on 16-NOV-10 at 17:15 local incident time.
Affected Medium: WATER MARSHY AREA
REPORTING PARTY
Name:
BRAD HUBBARD
Organization: SHELL PIPELINE
Address: 701 POYDRAS
NEW ORLEANS, LA
SHELL PIPELINE reported for the responsible party.
PRIMARY Phone: (504)2848438 ALTERNATE Phone: (504) 7283584
Type of Organization: PRIVATE ENTERPRISE
SUSPECTED RESPONSIBLE PARTY
Name:
BRAD HUBBARD
Organization: SHELL PIPELINE
Address:
701 POYDRAS
NEW ORLEANS, LA
PRIMARY Phone: (504)2848438 ALTERNATE Phone: (504)7283584
INCIDENT LOCATION
County: CALCASIEU
City: VINTON State: LA
Latitude: 30° 03' 38" N
Longitude: 093° 33' 04" W
30 3'38" N 93 33' 04" W

<<<PAGE 11>>>

_______________________________________________________________________
RELEASED MATERIAL(S)
CHRIS Code: OIL Official Material Name: OIL: CRUDE
Also Known As:
Qty Released: 0 UNKNOWN AMOUNT Qty in Water: 0 UNKNOWN AMOUNT
________________________________________________________________________
DESCRIPTION OF INCIDENT
CRUDE OIL DISCHARGED FROM A PIPELINE DUE TO LINE FAILURE. THE
QUANTITY DISCHARGED IS UNKNOWN AT TIME OF CALL. WORST CASE
ESTIMATED
TO BE 1500 BARRELS.
________________________________________________________________________
SENSITIVE INFORMATION
________________________________________________________________________
INCIDENT DETAILS
Pipeline Type: DISTRIBUTION
DOT Regulated: YES
Pipeline Above/Below Ground: BELOW
Exposed or Under Water: NO
Pipeline Covered: UNKNOWN
---WATER INFORMATION--Body
of Water: MARSH
Tributary of: UNKNOWN
Nearest River Mile Marker:
Water Supply Contaminated: UNKNOWN
______________________________________________________________________
IMPACT
Fire Involved: NO Fire Extinguished: UNKNOWN
INJURIES: NO Hospitalized: Empl/Crew: Passenger:
FATALITIES: NO Empl/Crew: Passenger: Occupant:
EVACUATIONS:NO Who Evacuated: Radius/Area:
Damages: NO
Hours Direction of
Closure Type Description of Closure Closed Closure
N
Air:
N Major
Road: Artery:N
N
Waterway:

<<<PAGE 12>>>

N
Track:
Environmental Impact: UNKNOWN
Media Interest: NONE Community Impact due to Material:
______________________________________________________________________
REMEDIAL ACTIONS
LINE WAS SHUT IN; ISOLATION VALVES CLOSED; OIL SPILL REMOVAL
ORGANIZATION HAS BEEN CONTACTED
Release Secured: YES
Release Rate:
Estimated Release Duration:
______________________________________________________________________
WEATHER
Weather: PARTLY CLOUDY, 60ºF Wind direction: NW
______________________________________________________________________
ADDITIONAL AGENCIES NOTIFIED
Federal: NONE
State/Local: LA STATE POLICE
State/Local On Scene: NONE
State Agency Number: 10-06654
_______________________________________________________________________
NOTIFICATIONS BY NRC
CALCASIEU PARISH SHERIFF'S DEPT (CRIMINAL INTELLIGENCE UNIT)
16-NOV-10 19:24 (337)4913778
DHS NOC (NOC)
16-NOV-10 19:24 (202)2828114
USCG ICC (ICC ONI)
16-NOV-10 19:24 (301)6693363
DOT CRISIS MANAGEMENT CENTER (MAIN OFFICE)
16-NOV-10 19:24 (202)3661863
U.S. EPA VI (MAIN OFFICE)
(866)3727745
FLD INTEL SUPPORT TEAM NEW ORLEANS (SUPERVISOR, FIST NEW ORLEANS)
16-NOV-10 19:24 (504)5894224
FLD INTEL SUPPORT TEAM PORT ARTHUR (FIST COMMAND CENTER)
16-NOV-10 19:24 (409)7195005
FLD INTEL SUPPORT TEAM PORT ARTHUR (FIELD UNIT)
16-NOV-10 19:24 (409)7195001
JFO-LA (COMMAND CENTER)
16-NOV-10 19:24 (225)3366513
JFO-LA (FEMA JFO LA)
16-NOV-10 19:24 (225)3366513
LA DEPT OF ENV QUAL (MAIN OFFICE)
16-NOV-10 19:24 (225)2193640

<<<PAGE 13>>>

LA DEPT OF WILDLIFE AND FISHERIES (ATTN: LAURA CARVER)
16-NOV-10 19:24 (337)
LA GOV OFFICE HS AND EMERGENCY PREP (MAIN OFFICE)
16-NOV-10 19:24 (225)9257500
LA OFFICE OF GOV (MAIN OFFICE)
16-NOV-10 19:24 (225)2195800
LA OFFICE OF PUBLIC HEALTH (MAIN OFFICE)
16-NOV-10 19:24 (888)2937020
MSU LAKE CHARLES (MAIN OFFICE)
16-NOV-10 19:24 (337)4917800
NATIONAL INFRASTRUCTURE COORD CTR (MAIN OFFICE)
16-NOV-10 19:24 (202)2829201
NOAA RPTS FOR LA (MAIN OFFICE)
16-NOV-10 19:24 (206)5264911
MSU PORT ARTHUR (MAIN OFFICE)
(409)7236501
PIPELINE & HAZMAT SAFETY ADMIN (OFFICE OF PIPELINE SAFETY (AUTO))
16-NOV-10 19:24 (202)3660568
LA STATE POLICE (MAIN OFFICE)
16-NOV-10 19:24 (225)9256595
TCEQ (MAIN OFFICE)
16-NOV-10 19:24 (512)2392507
_______________________________________________________________________
ADDITIONAL INFORMATION
CALLER INTENDS TO NOTIFY THE PARISH SHERIFF'S DEPARTMENT AND THE
PARISH OFFICE OF EMERGENCY PREPAREDNESS.
______________________________________________________________________
*** END INCIDENT REPORT #960033 ***
Report any problems by calling 1-800-424-8802
PLEASE VISIT OUR WEB SITE AT http://www.nrc.uscg.mil

<<<PAGE 14>>>

Appendix E – PHMSA Form 7000-1 Accident Report – No. 10100287

<<<PAGE 15>>>

NOTICE: This report is required by 49 CFR Part 195. Failure to report can result in a civil penalty not to
exceed $100,000 for each violation for each day that such violation persists except that the maximum civil
penalty shall not exceed $1,000,000 as provided in 49 USC 60122.
OMB NO: 2137-0047
EXPIRATION DATE: 01/31/2013
Report Date: 12/09/2010
No. U.S Department of Transportation
Pipeline and Hazardous Materials Safety Administration
20100287 - 15559
-------------------------(DOT
Use Only)
ACCIDENT REPORT - HAZARDOUS LIQUID
PIPELINE SYSTEMS
A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply
with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid
OMB Control Number. The OMB Control Number for this information collection is 2137-0047. Public reporting for this collection of information is estimated
to be approximately 10 hours per response (5 hours for a small release), including the time for reviewing instructions, gathering the data needed, and
completing and reviewing the collection of information. All responses to this collection of information are mandatory. Send comments regarding this
burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to: Information Collection Clearance
Officer, PHMSA, Office of Pipeline Safety (PHP-30) 1200 New Jersey Avenue, SE, Washington, D.C. 20590.
INSTRUCTIONS
Important: Please read the separate instructions for completing this form before you begin. They clarify the information requested and provide specific
examples. If you do not have a copy of the instructions, you can obtain one from the PHMSA Pipeline Safety Community Web Page at
http://www.phmsa.dot.gov/pipeline.
PART A - KEY REPORT INFORMATION
Report Type: (select all that apply) Original: Supplemental: Yes
Final:
Last Revision Date: 02/01/2011
1. Operator's OPS-issued Operator Identification Number (OPID): 31174
2. Name of Operator SHELL PIPELINE CO., L.P.
3. Address of Operator:
3a. Street Address 777 WALKER, P.O. Box 2648 (TWO SHELL PLAZA)
3b. City HOUSTON
3c. State Texas
3d. Zip Code 77252-2648
4. Local time (24-hr clock) and date of the Accident: 11/16/2010 16:46
5. Location of Accident:
Latitude: 30.06066
Longitude: -93.55077
6. National Response Center Report Number (if applicable): 960033
7. Local time (24-hr clock) and date of initial telephonic report to the
National Response Center (if applicable): 11/16/2010 16:46
8. Commodity released: (select only one, based on predominant
volume released) Crude Oil
- Specify Commodity Subtype:
- If "Other" Subtype, Describe:
- If Biofuel/Alternative Fuel and Commodity Subtype is
Ethanol Blend, then % Ethanol Blend:
%:
- If Biofuel/Alternative Fuel and Commodity Subtype is
Biodiesel, then Biodiesel Blend (e.g. B2, B20, B100):
B
9. Estimated volume of commodity released unintentionally (Barrels): 1,030.00
10. Estimated volume of intentional and/or controlled release/blowdown
(Barrels): 526.00
11. Estimated volume of commodity recovered (Barrels): 1,021.00
12. Were there fatalities? No
- If Yes, specify the number in each category:
12a. Operator employees
12b. Contractor employees working for the Operator
12c. Non-Operator emergency responders
12d. Workers working on the right-of-way, but NOT
associated with this Operator
12e. General public
12f. Total fatalities (sum of above)
13. Were there injuries requiring inpatient hospitalization? No
- If Yes, specify the number in each category:
13a. Operator employees
13b. Contractor employees working for the Operator
13c. Non-Operator emergency responders
13d. Workers working on the right-of-way, but NOT
Page 1 of 14

<<<PAGE 16>>>

associated with this Operator
13e. General public
13f. Total injuries (sum of above)
14. Was the pipeline/facility shut down due to the Accident? Yes
- If No, Explain:
- If Yes, complete Questions 14a and 14b: (use local time, 24-hr clock)
14a. Local time and date of shutdown: 11/16/2010 16:46
14b. Local time pipeline/facility restarted: 11/23/2010 09:17
- Still shut down? (* Supplemental Report Required)
15. Did the commodity ignite? No
16. Did the commodity explode? No
17. Number of general public evacuated:
18. Time sequence (use local time, 24-hour clock):
18a. Local time Operator identified Accident: 11/16/2010 17:15
18b. Local time Operator resources arrived on site: 11/16/2010 17:15
PART B - ADDITIONAL LOCATION INFORMATION
1. Was the origin of Accident onshore? Yes
If Yes, Complete Questions (2-12)
If No, Complete Questions (13-15)
- If Onshore:
2. State: Louisiana
3. Zip Code: 70668
4. City Vinton
5. County or Parish Calcasieu
6. Operator-designated location: Milepost/Valve Station
Specify: 32.5
7. Pipeline/Facility name: Erath to East Houston Crude
8. Segment name/ID: Sulphur Station to Pt. Neches 22"
9. Was Accident on Federal land, other than the Outer Continental Shelf
(OCS)? No
10. Location of Accident: Pipeline Right-of-way
11. Area of Accident (as found): Underground
Specify: Under soil
- If Other, Describe:
Depth-of-Cover (in): 69
12. Did Accident occur in a crossing? No
- If Yes, specify below:
- If Bridge crossing –
Cased/ Uncased:
- If Railroad crossing –
Cased/ Uncased/ Bored/drilled
- If Road crossing –
Cased/ Uncased/ Bored/drilled
- If Water crossing –
Cased/ Uncased
- Name of body of water, if commonly known:
- Approx. water depth (ft) at the point of the Accident:
- Select:
- If Offshore:
13. Approximate water depth (ft) at the point of the Accident:
14. Origin of Accident:
- In State waters - Specify:
- State:
- Area:
- Block/Tract #:
- Nearest County/Parish:
- On the Outer Continental Shelf (OCS) - Specify:
- Area:
- Block #:
15. Area of Accident:
PART C - ADDITIONAL FACILITY INFORMATION
1. Is the pipeline or facility: Interstate
2. Part of system involved in Accident: Onshore Pipeline, Including Valve Sites
- If Onshore Breakout Tank or Storage Vessel, Including Attached
Appurtenances, specify:
3. Item involved in Accident: Pipe
- If Pipe, specify: Pipe Body
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<<<PAGE 17>>>

3a. Nominal diameter of pipe (in): 3b. Wall thickness (in): 3c. SMYS (Specified Minimum Yield Strength) of pipe (psi): 3d. Pipe specification: 3e. Pipe Seam , specify: - If Other, Describe:
3f. Pipe manufacturer: 3g. Year of manufacture: 3h. Pipeline coating type at point of Accident, specify: - If Other, Describe:
- If Weld, including heat-affected zone, specify:
- If Other, Describe:
- If Valve, specify:
- If Mainline, specify:
- If Other, Describe:
3i. Manufactured by:
3j. Year of manufacture:
- If Tank/Vessel, specify:
- If Other - Describe:
- If Other, describe:
4. Year item involved in Accident was installed: 5. Material involved in Accident: - If Material other than Carbon Steel, specify:
6. Type of Accident Involved: - If Mechanical Puncture – Specify Approx. size:
in. (axial) by
in. (circumferential)
- If Leak - Select Type:
- If Other, Describe:
- If Rupture - Select Orientation: - If Other, Describe:
Approx. size: in. (widest opening) by in. (length circumferentially or axially) - If Other – Describe:
PART D - ADDITIONAL CONSEQUENCE INFORMATION
1. Wildlife impact: 1a. If Yes, specify all that apply:
- Fish/aquatic
- Birds
- Terrestrial
2. Soil contamination: 3. Long term impact assessment performed or planned: 4. Anticipated remediation: 4a. If Yes, specify all that apply:
- Surface water
- Groundwater
- Soil - Vegetation - Wildlife
5. Water contamination: 5a. If Yes, specify all that apply:
- Ocean/Seawater
- Surface
- Groundwater
- Drinking water: (Select one or both)
- Private Well
- Public Water Intake
5b. Estimated amount released in or reaching water (Barrels):
5c. Name of body of water, if commonly known:
6. At the location of this Accident, had the pipeline segment or facility
been identified as one that "could affect" a High Consequence Area
(HCA) as determined in the Operator's Integrity Management Program?
7. Did the released commodity reach or occur in one or more High
Consequence Area (HCA)? 7a. If Yes, specify HCA type(s): (Select all that apply)
- Commercially Navigable Waterway:
Was this HCA identified in the "could affect"
determination for this Accident site in the Operator's
22
.312
52,000
X-52
DSAW
Kaiser Steel Corporation
1952
Coal Tar
1952
Carbon Steel
Rupture
Longitudinal
4.7
36.2
No
Yes
No
Yes
Yes
Yes
No
Yes
No
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<<<PAGE 18>>>

Integrity Management Program?
- High Population Area:
Was this HCA identified in the "could affect"
determination for this Accident site in the Operator's
Integrity Management Program?
- Other Populated Area
Was this HCA identified in the "could affect"
determination for this Accident site in the Operator's
Integrity Management Program?
- Unusually Sensitive Area (USA) - Drinking Water
Was this HCA identified in the "could affect"
determination for this Accident site in the Operator's
Integrity Management Program?
- Unusually Sensitive Area (USA) - Ecological
Was this HCA identified in the "could affect"
determination for this Accident site in the Operator's
Integrity Management Program?
8. Estimated Property Damage :
8a. Estimated cost of public and non-Operator private
property damage $ 25,000
8b. Estimated cost of commodity lost $ 40,000
8c. Estimated cost of Operator's property damage & repairs $ 375,000
8d. Estimated cost of Operator's emergency response $ 524,000
8e. Estimated cost of Operator's environmental remediation $ 25,000
8f. Estimated other costs $ 0
Describe: 8c. Repairs - Pipeline cut out and replaced with new pipe.
8g. Total estimated property damage (sum of above) $ 989,000
PART E - ADDITIONAL OPERATING INFORMATION
1. Estimated pressure at the point and time of the Accident (psig): 700.00
2. Maximum Operating Pressure (MOP) at the point and time of the
Accident (psig): 1,050.00
3. Describe the pressure on the system or facility relating to the
Accident (psig): Pressure did not exceed MOP
4. Not including pressure reductions required by PHMSA regulations
(such as for repairs and pipe movement), was the system or facility
relating to the Accident operating under an established pressure
restriction with pressure limits below those normally allowed by the
MOP?
No
- If Yes, Complete 4.a and 4.b below:
4a. Did the pressure exceed this established pressure
restriction?
4b. Was this pressure restriction mandated by PHMSA or the
State?
5. Was "Onshore Pipeline, Including Valve Sites" OR "Offshore
Pipeline, Including Riser and Riser Bend" selected in PART C, Question
2?
Yes
- If Yes - (Complete 5a. – 5f. below)
5a. Type of upstream valve used to initially isolate release
source:
Automatic
5b. Type of downstream valve used to initially isolate release
source:
Manual
5c. Length of segment isolated between valves (ft): 109,296
5d. Is the pipeline configured to accommodate internal
inspection tools? Yes
- If No, Which physical features limit tool accommodation? (select all that apply)
- Changes in line pipe diameter
- Presence of unsuitable mainline valves
- Tight or mitered pipe bends
- Other passage restrictions (i.e. unbarred tee's,
projecting instrumentation, etc.)
- Extra thick pipe wall (applicable only for magnetic
flux leakage internal inspection tools)
- Other -
- If Other, Describe:
5e. For this pipeline, are there operational factors which
significantly complicate the execution of an internal inspection tool
run?
No
- If Yes, Which operational factors complicate execution? (select all that apply)
- Excessive debris or scale, wax, or other wall buildup
- Low operating pressure(s)
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- Low flow or absence of flow
- Incompatible commodity
- Other -
If Other, Describe:
5f. Function of pipeline system: 6. Was a Supervisory Control and Data Acquisition (SCADA)-based
system in place on the pipeline or facility involved in the Accident? If Yes 6a.
Was it operating at the time of the Accident? 6b. Was it fully functional at the time of the Accident? 6c. Did SCADA-based information (such as alarm(s),
alert(s), event(s), and/or volume calculations) assist with
the detection of the Accident?
6d. Did SCADA-based information (such as alarm(s),
alert(s), event(s), and/or volume calculations) assist with
the confirmation of the Accident?
7. Was a CPM leak detection system in place on the pipeline or facility
involved in the Accident? - If Yes:
7a. Was it operating at the time of the Accident? 7b. Was it fully functional at the time of the Accident? 7c. Did CPM leak detection system information (such as
alarm(s), alert(s), event(s), and/or volume calculations) assist
with the detection of the Accident?
7d. Did CPM leak detection system information (such as
alarm(s), alert(s), event(s), and/or volume calculations) assist
with the confirmation of the Accident?
8. How was the Accident initially identified for the Operator?
- If Other, Specify:
8a. If "Controller", "Local Operating Personnel", including
contractors", "Air Patrol", or "Guard Patrol by Operator or its
contractor" is selected in Question 8, specify the following:
9. Was an investigation initiated into whether or not the controller(s) or
control room issues were the cause of or a contributing factor to the
Accident?
- If 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)
- If Yes, specify investigation result(s): (select all that apply)
- Investigation reviewed work schedule rotations,
continuous hours of service (while working for the
Operator), and other factors associated with fatigue
- Investigation did NOT review work schedule rotations,
continuous hours of service (while working for the
Operator), and other factors associated with fatigue
Provide an explanation for why not:
- Investigation identified no control room issues
- Investigation identified no controller issues
- Investigation identified incorrect controller action or
controller error
- Investigation identified that fatigue may have affected the
controller(s) involved or impacted the involved controller(s)
response
- Investigation identified incorrect procedures
- Investigation identified incorrect control room equipment
operation
- Investigation identified maintenance activities that affected
control room operations, procedures, and/or controller
response
- Investigation identified areas other than those above:
Describe:
PART F - DRUG & ALCOHOL TESTING INFORMATION
> 20% SMYS Regulated Trunkline/Transmission
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
CPM leak detection system or SCADA-based information
(such as alarm(s), alert(s), event(s), and/or volume
calculations)
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)
The Controller's actions could not have contributed to the
release because, the Controller and supervisor were
monitoring the console preparing for a delivery location
change when the pipeline rupture occurred. The Controller
recognized the release and responded appropriately.
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1. As a result of this Accident, were any Operator employees tested
under the post-accident drug and alcohol testing requirements of DOT's
Drug & Alcohol Testing regulations?
No
- If Yes:
1a. Specify how many were tested:
1b. Specify how many failed:
2. As a result of this Accident, were any Operator contractor employees
tested under the post-accident drug and alcohol testing requirements of
DOT's Drug & Alcohol Testing regulations?
No
- If Yes:
2a. Specify how many were tested:
2b. Specify how many failed:
PART G – APPARENT CAUSE
Select only one box from PART G in shaded column on left representing the APPARENT Cause of the Accident, and answer
the questions on the right. Describe secondary, contributing or root causes of the Accident in the narrative (PART H).
Apparent Cause: G1 - Corrosion Failure
G1 - Corrosion Failure - only one sub-cause can be picked from shaded left-hand column
External Corrosion: Yes
Internal Corrosion:
- If External Corrosion:
1. Results of visual examination: Localized Pitting
- If Other, Describe:
2. Type of corrosion: (select all that apply)
- Galvanic
- Atmospheric
- Stray Current
- Microbiological
- Selective Seam
- Other: Yes
- If Other, Describe: External corrosion and corrosion fatigue cracks initiated
some deeper longitudinal corrosion features.
3. The type(s) of corrosion selected in Question 2 is based on the following: (select all that apply)
- Field examination
- Determined by metallurgical analysis Yes
- Other:
- If Other, Describe:
4. Was the failed item buried under the ground? Yes
- If Yes :
4a. Was failed item considered to be under cathodic
protection at the time of the Accident? Yes
If Yes - Year protection started: 1952
4b. Was shielding, tenting, or disbonding of coating evident at
the point of the Accident? Yes
4c. Has one or more Cathodic Protection Survey been
conducted at the point of the Accident? Yes
If "Yes, CP Annual Survey" – Most recent year conducted: 2010
If "Yes, Close Interval Survey" – Most recent year conducted:
If "Yes, Other CP Survey" – Most recent year conducted:
- If No:
4d. Was the failed item externally coated or painted?
5. Was there observable damage to the coating or paint in the vicinity of
the corrosion? No
- If Internal Corrosion:
6. Results of visual examination:
- Other:
7. Type of corrosion (select all that apply): -
Corrosive Commodity
- Water drop-out/Acid
- Microbiological
- Erosion
- Other:
- If Other, Describe:
8. The cause(s) of corrosion selected in Question 7 is based on the following (select all that apply): -
Field examination
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- Determined by metallurgical analysis
- Other:
- If Other, Describe:
9. Location of corrosion (select all that apply): -
Low point in pipe
- Elbow
- Other:
- If Other, Describe:
10. Was the commodity treated with corrosion inhibitors or biocides?
11. Was the interior coated or lined with protective coating?
12. Were cleaning/dewatering pigs (or other operations) routinely
utilized?
13. Were corrosion coupons routinely utilized?
Complete the following if any Corrosion Failure sub-cause is selected AND the "Item Involved in Accident" (from PART C,
Question 3) is Tank/Vessel.
14. List the year of the most recent inspections:
14a. API Std 653 Out-of-Service Inspection
- No Out-of-Service Inspection completed
14b. API Std 653 In-Service Inspection
- No In-Service Inspection completed
Complete the following if any Corrosion Failure sub-cause is selected AND the "Item Involved in Accident" (from PART C,
Question 3) is Pipe or Weld.
15. Has one or more internal inspection tool collected data at the point of the
Accident? Yes
15a. If Yes, for each tool used, select type of internal inspection tool and indicate most recent year run: -
Magnetic Flux Leakage Tool Yes
Most recent year: 2007
- Ultrasonic
Most recent year:
- Geometry Yes
Most recent year: 2007
- Caliper
Most recent year:
- Crack
Most recent year:
- Hard Spot
Most recent year:
- Combination Tool
Most recent year:
- Transverse Field/Triaxial
Most recent year:
- Other
Most recent year:
Describe:
16. Has one or more hydrotest or other pressure test been conducted since
original construction at the point of the Accident? Yes
If Yes Most
recent year tested: 1995
Test pressure: 1,327.00
17. Has one or more Direct Assessment been conducted on this segment? No
- If Yes, and an investigative dig was conducted at the point of the Accident::
Most recent year conducted:
- If Yes, but the point of the Accident was not identified as a dig site:
Most recent year conducted:
18. Has one or more non-destructive examination been conducted at the
point of the Accident since January 1, 2002? No
18a. If Yes, for each examination conducted since January 1, 2002, select type of non-destructive examination and indicate most
recent year the examination was conducted:
- Radiography
Most recent year conducted:
- Guided Wave Ultrasonic
Most recent year conducted:
- Handheld Ultrasonic Tool
Most recent year conducted:
- Wet Magnetic Particle Test
Most recent year conducted:
- Dry Magnetic Particle Test
Most recent year conducted:
- Other
Most recent year conducted:
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Describe:
G2 - Natural Force Damage - only one sub-cause can be picked from shaded left-handed column
Natural Force Damage – Sub-Cause:
- If Earth Movement, NOT due to Heavy Rains/Floods:
1. Specify:
- If Other, Describe:
- If Heavy Rains/Floods:
2. Specify:
- If Other, Describe:
- If Lightning:
3. Specify:
- If Temperature:
4. Specify:
- If Other, Describe:
- If High Winds:
- If Other Natural Force Damage:
5. Describe:
Complete the following if any Natural Force Damage sub-cause is selected.
6. Were the natural forces causing the Accident generated in
conjunction with an extreme weather event?
6a. If Yes, specify: (select all that apply)
- Hurricane
- Tropical Storm
- Tornado
- Other
- If Other, Describe:
G3 - Excavation Damage - only one sub-cause can be picked from shaded left-hand column
Excavation Damage – Sub-Cause:
- If Excavation Damage by Operator (First Party):
- If Excavat
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