U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration PHMSA Update: Aging Infrastructure and Integrity Verification Process NAPCA Workshop August 15, 2013 Houston, Texas Pipeline and Hazardous Materials Safety Administration (PHMSA) Steve Nanney 1
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration PHMSA Safety Update - Topics • Performance • Incidents from 2012 - Overview • PHMSA’s 2013 Agenda • Integrity Verification Process 2
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Performance 3
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Serious Incidents Downward Trend Continues in 2012 Serious Incident – fatality or injury requiring in-patient hospitalization 4
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Significant Incidents Downward Turn in 2012 Significant incidents include any of the following : 1 . Fatality or injury requiring in-patient hospitalization; 2. $50,000 or more in total costs, measured in 1984 dollars 3. Highly volatile liquid (HVL) releases of 5 barrels or more; 4. Non-HVL liquid releases of 50 barrels or more; and 5. Liquid releases resulting in an unintentional fire or explosion 5
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration 2012 Hazardous Liquid Incidents Top Causes for All Reported & Significant Categories • Material/ Weld/Equip Failure • Corrosion • Incorrect Operation 6
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration 2012 Gas Transmission Incidents Top Causes for All Reported & Significant categories • Material/Weld/ Equip Failure • Corrosion 7
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration 2012 Gas Distribution Incidents Top Causes for all incident categories: • Other Outside Force Damage • Excavation Damage • Other 8
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Significant Accident Breakdown Total by Type (Fatalities) Total for Hazardous Gas Gas All Types 1 Liquid Transmission Distribution 2010 259 (19) 121 (1) 79 (10) 54 (8) 2011 284 (12) 139 (1) 83 (0) 60(11) 2012 244 (10) 129 (3) 62 (0) 49 (7) 3 Year Average 262 (14) 130 (2) 75 (3) 54 (9) (2010-2012) 5 Year 268 (12) 124 (2) 74 (2) 62 (8) Average (2008-2012) 10 Year 281 (15) 122 (2) 77 (2) 73 (11) Average (2003-2012) 9 1 includes gas gathering (zero fatality) - excludes “fire first” incidents; data as of 03/29/2013
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Incidents from 2012 Overview 10
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration High Profile Incidents • Chevron; Salt Lake City, Utah (Interstate) – Crude oil and refined products – Multiple accidents: 6/10, 12/10, 3/13 • Sissonville, West Virginia (Interstate) – Impact to major interstate highway; questions on HCA determination – Led to Congressional oversight hearing – NTSB investigation • Mayflower, Arkansas (Interstate) – Canadian heavy crude – Investigation underway 11
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Sissonville Pipeline Incident • Dec 11, 2012: Rupture of a 20” X-60, gas transmission pipeline (1967 vintage)
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Sissonville Pipeline Incident • No injuries or fatalities (thankfully) • 3 homes destroyed, others damaged • Interstate 77 damaged and temporarily closed • 3 pipelines in vicinity – 20”, 26” and 30” • PHMSA issued Corrective Action Order • NTSB investigated cause 13
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Mayflower, AR Pipeline Accident • March 29, 2012: 20” crude oil pipeline ruptured in Mayflower, Arkansas • ~ 5,000 bbls of crude spilled • Pipeline carrying Canadian crude oil (Wabusca) from Patoka, Illinois to Nederland, Texas • Pipeline installed - 1947/1948. 14
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Mayflower Pipeline Incident • Pipeline flow reversal project was completed in 2006 • Line from Patoka, IL to Nederland, TX has been shut in pending the results of the investigation • Considerable media attention 15
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Incidents like these and others in past years helped to form the focus of PHMSA’s 2013 Agenda… 16
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration PSA of 2011 - Mandates • 42 Mandates in Pipeline Safety, Regulatory Certainty, and Job Creation Act (PSA) of 2011 • Includes 9 required studies (Leak Detection, Cover over Buried Pipelines, R&D, Diluted Bitumen, Cast Iron, Damage Prevention, Expansion of IMP, Gathering Lines,…) • Other topics include: – MAOP Records Verification , – Tests to Confirm Material Strength of Previously Untested GT in HCAs – 1 hour Notification of Incidents , – Automatic/Remote Shut-off Valves - 17 -
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration NTSB Recommendations • 27 NTSB recommendations: – ERW Pipe Seam Study/Implementation – Emergency Response Information Sharing • Operator Sharing Plan Information • 911 Notification (Operator and 911 info exchange) – ASVs/RCVs – Removal of Grandfather Clause for Gas Transmission – ILI Piggable Gas Transmission Pipelines – Pressure testing of Gas Transmission (w/ spike test) 18
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Nominal Pipe Size data as of 7-1-2013 from Part H 19
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Decade Installed data as of 7-1-2013 from Part J 20
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Specified Minimum Yield Strength data as of 7-1-2013 from Part K 21
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration PSA of 2011, §23 – MAOP Mandate • Verify records for Class Locations 3 & 4 and HCAs • Reconfirm MAOP for pipe with incomplete records – 5,401 miles with Incomplete Records in Class 3 & 4 and HCAs • Strength test all untested pipe in HCAs operating at > 30% SMYS – 3,220 HCA miles with Pressure Test < 1.1 MAOP Gas Transmission 2012 Annual Report data as-of 7-1-2013 - 22 -
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Specified Minimum Yield Strength data as of 7-1-2013 from Part K 23
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration NTSB Recommendation P-11-14 • Eliminate Grandfather clause and require hydrotest with a spike test for all pre-1970 pipe – 55,120 miles Grandfathered miles reported 192.619(c) (22,717) and 192.619(a)(3) (32,403) – 93,817 miles with Pressure Test < 1.1 times MAOP – 20,272 miles with Stress Level > 72% SMYS or Unknown. Except for Special Permit/Alt MAOP pipelines, PHMSA expects this mileage is Grandfathered. • PHMSA expects that Grandfather miles and Pressure Test < 1.1 MAOP are actually close to same # • Somewhere between 55 and 94 thousand miles Gas Transmission 2012 Annual Report data as-of 7-1-2013 24
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Pressure Test Range Pressure Test Range Total Miles % Total PT ˂ 1.1 MAOP or no PT 93,817 31% 1.25 MAOP > PT ≥ 1.1 MAOP 19,131 6% PT ≥ 1.25 MAOP 187,628 62% Gas Transmission 2012 Annual Report data, Part R, as-of 7-1-2013 25
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Pressure Test < 1.1 MAOP data as of 7-1-2013 from Part R 26
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Operating Stress Levels over 72% SMYS & Unknown % SMYS Interstate Intrastate Total > 72 to 80 11,665 231 11,895 > 80 978 321 1,299 Unknown 973 6,074 7,038 Miles operating between 72 and 80% SMYS are either Grandfathered, Special Permit, or Alternative MAOP under 619(d) Miles with Unknown SMYS are Grandfathered Gas Transmission 2012 Annual Report data, Part K, as-of 7-1-2013 27
U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration Data Summary by HCA and Class Location data as of 7-1-2013 from Part Q Location Total GT % in HCA GT HCA Non-HCA Miles Miles Miles Class 1 237,756 0.7 1,660 236,096 Class 2 30,210 4.7 1,412 28,798 Class 3 32,613 48.6 15,854 16,759 Class 4 962 78.2 752 209 Total 301,540 19,678 281,862 HCA – high consequence area - 28 -
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