Pipeline Safety Stakeholder Communications

This report is a sub-report of the PHMSA Significant Pipeline Incidents report. As such, it represents Significant Incidents (A) only over the time period and pipeline system specified.

The data source for this table is the PHMSA Flagged Incident File. (1)

More Pipeline Incidents and Mileage Reports are available.

• All Pipeline Systems
• Hazardous Liquid
• Gas Transmission
• Gas Gathering
• Gas Distribution

National All Pipeline Systems: Significant Incident Details: 2012

Reported Cause of Incident (B)	Number (C)	%	Fatalities	Injuries	Property Damage (D) (E)	% of Property Damage
CORROSION
EXTERNAL CORROSION	18	7.3%	0	2	$21,121,387	11.5%
INTERNAL CORROSION	42	17.2%	0	0	$29,706,348	16.2%
Sub Total	60	24.5%	0	2	$50,827,735	27.7%
EXCAVATION DAMAGE
OPERATOR/CONTRACTOR EXCAVATION DAMAGE	2	0.8%	0	0	$673,250	0.3%
THIRD PARTY EXCAVATION DAMAGE	21	8.6%	1	7	$13,050,432	7.1%
PREVIOUS DAMAGE DUE TO EXCAVATION	2	0.8%	0	4	$1,393,300	0.7%
Sub Total	25	10.2%	1	11	$15,116,982	8.2%
INCORRECT OPERATION
DAMAGE BY OPERATOR OR OPERATOR'S CONTRACTOR	2	0.8%	0	0	$193,160	0.1%
OVERFILL/OVERFLOW OF TANK/VESSEL/SUMP	2	0.8%	0	0	$211,136	0.1%
INCORRECT VALVE POSITION	2	0.8%	0	0	$222,031	0.1%
PIPELINE/EQUIPMENT OVERPRESSURED	2	0.8%	0	0	$1,795,402	0.9%
INCORRECT INSTALLATION	1	0.4%	0	0	$666,980	0.3%
OTHER INCORRECT OPERATION	8	3.2%	0	1	$1,012,534	0.5%
Sub Total	17	6.9%	0	1	$4,101,243	2.2%
MAT'L/WELD/EQUIP FAILURE
CONSTRUCTION, INSTALLATION OR FABRICATION-RELATED	14	5.7%	0	0	$3,481,889	1.9%
MANUFACTURING-RELATED	10	4.1%	0	0	$13,782,521	7.5%
ENVIRONMENTAL CRACKING-RELATED	4	1.6%	0	0	$1,739,409	0.9%
OTHER PIPE/WELD/JOINT FAILURE	1	0.4%	0	1	$24,520	0.0%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	9	3.6%	0	1	$1,025,251	0.5%
PUMP/COMPRESSOR-RELATED EQUIPMENT	15	6.1%	0	1	$2,652,806	1.4%
THREADED CONNECTION/COUPLING FAILURE	9	3.6%	0	0	$2,162,780	1.1%
NON-THREADED CONNECTION FAILURE	12	4.9%	0	0	$5,830,866	3.1%
DEFECTIVE OR LOOSE TUBING/FITTING	3	1.2%	0	0	$595,597	0.3%
OTHER EQUIPMENT FAILURE	6	2.4%	0	0	$3,230,101	1.7%
Sub Total	83	34.0%	0	3	$34,525,740	18.8%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	3	1.2%	0	0	$2,058,843	1.1%
HEAVY RAINS/FLOODS	1	0.4%	0	0	$1,010,581	0.5%
LIGHTNING	3	1.2%	0	1	$1,306,195	0.7%
TEMPERATURE	2	0.8%	0	0	$278,748	0.1%
HIGH WINDS	1	0.4%	0	1	$750,036	0.4%
OTHER NATURAL FORCE DAMAGE	2	0.8%	1	1	$856,400	0.4%
Sub Total	12	4.9%	1	3	$6,260,803	3.4%
OTHER OUTSIDE FORCE DAMAGE
VEHICLE NOT ENGAGED IN EXCAVATION	12	4.9%	6	9	$4,153,837	2.2%
MARITIME EQUIPMENT OR VESSEL ADRIFT	1	0.4%	0	0	$96,700	0.0%
ELECTRICAL ARCING FROM OTHER EQUIPMENT/FACILITY	1	0.4%	0	0	$210,005	0.1%
PREVIOUS MECHANICAL DAMAGE	1	0.4%	0	0	$605,348	0.3%
INTENTIONAL DAMAGE	2	0.8%	1	2	$106,436	0.0%
OTHER OUTSIDE FORCE DAMAGE	4	1.6%	0	1	$26,381,215	14.3%
Sub Total	21	8.6%	7	12	$31,553,541	17.2%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	10	4.1%	0	17	$5,975,477	3.2%
UNKNOWN CAUSE	16	6.5%	1	6	$34,964,864	19.0%
Sub Total	26	10.6%	1	23	$40,940,341	22.3%
Totals	244	100.0%	10	55	$183,326,385	100.0%

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• All Hazardous Liquid Systems
• Onshore Only
• Offshore Only

National Hazardous Liquid: Significant Incident Details: 2012

Reported Cause of Incident (B)	Number	%	Fatalities	Injuries	Property Damage (D) (E)	% of Property Damage
CORROSION
EXTERNAL CORROSION	10	7.7%	0	0	$19,137,375	17.1%
INTERNAL CORROSION	24	18.6%	0	0	$22,899,040	20.5%
Sub Total	34	26.3%	0	0	$42,036,415	37.7%
EXCAVATION DAMAGE
OPERATOR/CONTRACTOR EXCAVATION DAMAGE	1	0.7%	0	0	$40,750	0.0%
THIRD PARTY EXCAVATION DAMAGE	6	4.6%	0	0	$3,658,127	3.2%
PREVIOUS DAMAGE DUE TO EXCAVATION	1	0.7%	0	0	$1,210,800	1.0%
Sub Total	8	6.2%	0	0	$4,909,677	4.4%
INCORRECT OPERATION
DAMAGE BY OPERATOR OR OPERATOR'S CONTRACTOR	2	1.5%	0	0	$193,160	0.1%
OVERFILL/OVERFLOW OF TANK/VESSEL/SUMP	2	1.5%	0	0	$211,136	0.1%
INCORRECT VALVE POSITION	2	1.5%	0	0	$222,031	0.2%
PIPELINE/EQUIPMENT OVERPRESSURED	2	1.5%	0	0	$1,795,402	1.6%
INCORRECT INSTALLATION	1	0.7%	0	0	$666,980	0.6%
OTHER INCORRECT OPERATION	4	3.1%	0	0	$588,800	0.5%
Sub Total	13	10.0%	0	0	$3,677,509	3.3%
MAT'L/WELD/EQUIP FAILURE
CONSTRUCTION, INSTALLATION OR FABRICATION-RELATED	9	6.9%	0	0	$1,285,864	1.1%
MANUFACTURING-RELATED	6	4.6%	0	0	$11,144,749	10.0%
ENVIRONMENTAL CRACKING-RELATED	3	2.3%	0	0	$1,635,443	1.4%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	3	2.3%	0	0	$386,997	0.3%
PUMP/COMPRESSOR-RELATED EQUIPMENT	13	10.0%	0	0	$2,297,336	2.0%
THREADED CONNECTION/COUPLING FAILURE	6	4.6%	0	0	$388,103	0.3%
NON-THREADED CONNECTION FAILURE	10	7.7%	0	0	$3,960,900	3.5%
DEFECTIVE OR LOOSE TUBING/FITTING	3	2.3%	0	0	$595,597	0.5%
OTHER EQUIPMENT FAILURE	4	3.1%	0	0	$1,655,050	1.4%
Sub Total	57	44.1%	0	0	$23,350,039	20.9%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	1	0.7%	0	0	$174,800	0.1%
LIGHTNING	1	0.7%	0	0	$1,162,004	1.0%
TEMPERATURE	2	1.5%	0	0	$278,748	0.2%
Sub Total	4	3.1%	0	0	$1,615,552	1.4%
OTHER OUTSIDE FORCE DAMAGE
VEHICLE NOT ENGAGED IN EXCAVATION	2	1.5%	2	3	$2,874,437	2.5%
OTHER OUTSIDE FORCE DAMAGE	1	0.7%	0	0	$170,000	0.1%
Sub Total	3	2.3%	2	3	$3,044,437	2.7%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	3	2.3%	0	0	$3,186,125	2.8%
UNKNOWN CAUSE	7	5.4%	1	1	$29,480,163	26.4%
Sub Total	10	7.7%	1	1	$32,666,288	29.3%
Totals	129	100.0%	3	4	$111,299,917	100.0%

Export Table

National Hazardous Liquid Onshore: Significant Incident Details: 2012

Reported Cause of Incident (B)	Number	%	Fatalities	Injuries	Property Damage (D) (E)	% of Property Damage
CORROSION
EXTERNAL CORROSION	9	6.9%	0	0	$18,907,370	16.9%
INTERNAL CORROSION	24	18.6%	0	0	$22,899,040	20.5%
Sub Total	33	25.5%	0	0	$41,806,410	37.5%
EXCAVATION DAMAGE
OPERATOR/CONTRACTOR EXCAVATION DAMAGE	1	0.7%	0	0	$40,750	0.0%
THIRD PARTY EXCAVATION DAMAGE	6	4.6%	0	0	$3,658,127	3.2%
PREVIOUS DAMAGE DUE TO EXCAVATION	1	0.7%	0	0	$1,210,800	1.0%
Sub Total	8	6.2%	0	0	$4,909,677	4.4%
INCORRECT OPERATION
DAMAGE BY OPERATOR OR OPERATOR'S CONTRACTOR	2	1.5%	0	0	$193,160	0.1%
OVERFILL/OVERFLOW OF TANK/VESSEL/SUMP	2	1.5%	0	0	$211,136	0.1%
INCORRECT VALVE POSITION	2	1.5%	0	0	$222,031	0.2%
PIPELINE/EQUIPMENT OVERPRESSURED	2	1.5%	0	0	$1,795,402	1.6%
INCORRECT INSTALLATION	1	0.7%	0	0	$666,980	0.6%
OTHER INCORRECT OPERATION	4	3.1%	0	0	$588,800	0.5%
Sub Total	13	10.0%	0	0	$3,677,509	3.3%
MAT'L/WELD/EQUIP FAILURE
CONSTRUCTION, INSTALLATION OR FABRICATION-RELATED	9	6.9%	0	0	$1,285,864	1.1%
MANUFACTURING-RELATED	6	4.6%	0	0	$11,144,749	10.0%
ENVIRONMENTAL CRACKING-RELATED	3	2.3%	0	0	$1,635,443	1.4%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	3	2.3%	0	0	$386,997	0.3%
PUMP/COMPRESSOR-RELATED EQUIPMENT	13	10.0%	0	0	$2,297,336	2.0%
THREADED CONNECTION/COUPLING FAILURE	6	4.6%	0	0	$388,103	0.3%
NON-THREADED CONNECTION FAILURE	9	6.9%	0	0	$3,490,898	3.1%
DEFECTIVE OR LOOSE TUBING/FITTING	3	2.3%	0	0	$595,597	0.5%
OTHER EQUIPMENT FAILURE	4	3.1%	0	0	$1,655,050	1.4%
Sub Total	56	43.4%	0	0	$22,880,037	20.5%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	1	0.7%	0	0	$174,800	0.1%
LIGHTNING	1	0.7%	0	0	$1,162,004	1.0%
TEMPERATURE	2	1.5%	0	0	$278,748	0.2%
Sub Total	4	3.1%	0	0	$1,615,552	1.4%
OTHER OUTSIDE FORCE DAMAGE
VEHICLE NOT ENGAGED IN EXCAVATION	2	1.5%	2	3	$2,874,437	2.5%
Sub Total	2	1.5%	2	3	$2,874,437	2.5%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	3	2.3%	0	0	$3,186,125	2.8%
UNKNOWN CAUSE	7	5.4%	1	1	$29,480,163	26.4%
Sub Total	10	7.7%	1	1	$32,666,288	29.3%
Totals	126	97.6%	3	4	$110,429,910	99.2%

Export Table

National Hazardous Liquid Offshore: Significant Incident Details: 2012

Reported Cause of Incident (B)	Number	%	Fatalities	Injuries	Property Damage (D) (E)	% of Property Damage
CORROSION
EXTERNAL CORROSION	1	0.7%	0	0	$230,005	0.2%
Sub Total	1	0.7%	0	0	$230,005	0.2%
MAT'L/WELD/EQUIP FAILURE
NON-THREADED CONNECTION FAILURE	1	0.7%	0	0	$470,002	0.4%
Sub Total	1	0.7%	0	0	$470,002	0.4%
OTHER OUTSIDE FORCE DAMAGE
OTHER OUTSIDE FORCE DAMAGE	1	0.7%	0	0	$170,000	0.1%
Sub Total	1	0.7%	0	0	$170,000	0.1%
Totals	3	2.3%	0	0	$870,007	0.7%

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• All Gas Transmission Systems
• Onshore Only
• Offshore Only

National Gas Transmission: Significant Incident Details: 2012

Reported Cause of Incident (B)	Number	%	Fatalities	Injuries	Property Damage (D) (E)	% of Property Damage
CORROSION
EXTERNAL CORROSION	6	9.8%	0	0	$1,834,612	3.6%
INTERNAL CORROSION	14	22.9%	0	0	$5,988,888	11.9%
Sub Total	20	32.7%	0	0	$7,823,500	15.5%
EXCAVATION DAMAGE
OPERATOR/CONTRACTOR EXCAVATION DAMAGE	1	1.6%	0	0	$632,500	1.2%
THIRD PARTY EXCAVATION DAMAGE	4	6.5%	0	2	$1,570,963	3.1%
Sub Total	5	8.2%	0	2	$2,203,463	4.3%
INCORRECT OPERATION
OTHER INCORRECT OPERATION	2	3.2%	0	0	$265,000	0.5%
Sub Total	2	3.2%	0	0	$265,000	0.5%
MAT'L/WELD/EQUIP FAILURE
CONSTRUCTION, INSTALLATION OR FABRICATION-RELATED	5	8.2%	0	0	$2,196,025	4.3%
MANUFACTURING-RELATED	4	6.5%	0	0	$2,637,772	5.2%
ENVIRONMENTAL CRACKING-RELATED	1	1.6%	0	0	$103,966	0.2%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	4	6.5%	0	0	$533,254	1.0%
PUMP/COMPRESSOR-RELATED EQUIPMENT	2	3.2%	0	1	$355,470	0.7%
THREADED CONNECTION/COUPLING FAILURE	3	4.9%	0	0	$1,774,677	3.5%
NON-THREADED CONNECTION FAILURE	2	3.2%	0	0	$1,869,966	3.7%
OTHER EQUIPMENT FAILURE	2	3.2%	0	0	$1,575,051	3.1%
Sub Total	23	37.7%	0	1	$11,046,181	21.9%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	2	3.2%	0	0	$1,884,043	3.7%
Sub Total	2	3.2%	0	0	$1,884,043	3.7%
OTHER OUTSIDE FORCE DAMAGE
VEHICLE NOT ENGAGED IN EXCAVATION	1	1.6%	0	4	$56,960	0.1%
MARITIME EQUIPMENT OR VESSEL ADRIFT	1	1.6%	0	0	$96,700	0.1%
OTHER OUTSIDE FORCE DAMAGE	1	1.6%	0	0	$25,059,800	49.7%
Sub Total	3	4.9%	0	4	$25,213,460	50.0%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	4	6.5%	0	0	$1,077,903	2.1%
UNKNOWN CAUSE	2	3.2%	0	0	$831,760	1.6%
Sub Total	6	9.8%	0	0	$1,909,663	3.7%
Totals	61	100.0%	0	7	$50,345,310	100.0%

Export Table

National Gas Transmission Onshore: Significant Incident Details: 2012

Reported Cause of Incident (B)	Number	%	Fatalities	Injuries	Property Damage (D) (E)	% of Property Damage
CORROSION
EXTERNAL CORROSION	4	6.5%	0	0	$1,253,237	2.4%
INTERNAL CORROSION	3	4.9%	0	0	$1,613,414	3.2%
Sub Total	7	11.4%	0	0	$2,866,651	5.6%
EXCAVATION DAMAGE
OPERATOR/CONTRACTOR EXCAVATION DAMAGE	1	1.6%	0	0	$632,500	1.2%
THIRD PARTY EXCAVATION DAMAGE	4	6.5%	0	2	$1,570,963	3.1%
Sub Total	5	8.2%	0	2	$2,203,463	4.3%
INCORRECT OPERATION
OTHER INCORRECT OPERATION	2	3.2%	0	0	$265,000	0.5%
Sub Total	2	3.2%	0	0	$265,000	0.5%
MAT'L/WELD/EQUIP FAILURE
CONSTRUCTION, INSTALLATION OR FABRICATION-RELATED	4	6.5%	0	0	$1,020,414	2.0%
MANUFACTURING-RELATED	4	6.5%	0	0	$2,637,772	5.2%
ENVIRONMENTAL CRACKING-RELATED	1	1.6%	0	0	$103,966	0.2%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	4	6.5%	0	0	$533,254	1.0%
PUMP/COMPRESSOR-RELATED EQUIPMENT	2	3.2%	0	1	$355,470	0.7%
THREADED CONNECTION/COUPLING FAILURE	3	4.9%	0	0	$1,774,677	3.5%
NON-THREADED CONNECTION FAILURE	2	3.2%	0	0	$1,869,966	3.7%
OTHER EQUIPMENT FAILURE	2	3.2%	0	0	$1,575,051	3.1%
Sub Total	22	36.0%	0	1	$9,870,570	19.6%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	2	3.2%	0	0	$1,884,043	3.7%
Sub Total	2	3.2%	0	0	$1,884,043	3.7%
OTHER OUTSIDE FORCE DAMAGE
VEHICLE NOT ENGAGED IN EXCAVATION	1	1.6%	0	4	$56,960	0.1%
MARITIME EQUIPMENT OR VESSEL ADRIFT	1	1.6%	0	0	$96,700	0.1%
OTHER OUTSIDE FORCE DAMAGE	1	1.6%	0	0	$25,059,800	49.7%
Sub Total	3	4.9%	0	4	$25,213,460	50.0%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	4	6.5%	0	0	$1,077,903	2.1%
UNKNOWN CAUSE	2	3.2%	0	0	$831,760	1.6%
Sub Total	6	9.8%	0	0	$1,909,663	3.7%
Totals	47	77.0%	0	7	$44,212,850	87.8%

Export Table

National Gas Transmission Offshore: Significant Incident Details: 2012

Reported Cause of Incident (B)	Number	%	Fatalities	Injuries	Property Damage (D) (E)	% of Property Damage
CORROSION
EXTERNAL CORROSION	2	3.2%	0	0	$581,375	1.1%
INTERNAL CORROSION	11	18.0%	0	0	$4,375,474	8.6%
Sub Total	13	21.3%	0	0	$4,956,849	9.8%
MAT'L/WELD/EQUIP FAILURE
CONSTRUCTION, INSTALLATION OR FABRICATION-RELATED	1	1.6%	0	0	$1,175,611	2.3%
Sub Total	1	1.6%	0	0	$1,175,611	2.3%
Totals	14	22.9%	0	0	$6,132,460	12.1%

Export Table

National Gas Gathering: Significant Incident Details: 2012

Reported Cause of Incident (B)	Number	%	Fatalities	Injuries	Property Damage (D) (E)	% of Property Damage
CORROSION
INTERNAL CORROSION	4	80.0%	0	0	$818,420	88.8%
Sub Total	4	80.0%	0	0	$818,420	88.8%
MAT'L/WELD/EQUIP FAILURE
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	1	20.0%	0	0	$102,500	11.1%
Sub Total	1	20.0%	0	0	$102,500	11.1%
Totals	5	100.0%	0	0	$920,920	100.0%

Export Table

National Gas Distribution: Significant Incident Details: 2012

Reported Cause of Incident (B)	Number (C)	%	Fatalities	Injuries	Property Damage (D) (E)	% of Property Damage
CORROSION
EXTERNAL CORROSION	2	4.0%	0	2	$149,400	0.7%
Sub Total	2	4.0%	0	2	$149,400	0.7%
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE	11	22.4%	1	5	$7,821,342	37.6%
PREVIOUS DAMAGE DUE TO EXCAVATION	1	2.0%	0	4	$182,500	0.8%
Sub Total	12	24.4%	1	9	$8,003,842	38.5%
INCORRECT OPERATION
OTHER INCORRECT OPERATION	2	4.0%	0	1	$158,734	0.7%
Sub Total	2	4.0%	0	1	$158,734	0.7%
MAT'L/WELD/EQUIP FAILURE
OTHER PIPE/WELD/JOINT FAILURE	1	2.0%	0	1	$24,520	0.1%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	1	2.0%	0	1	$2,500	0.0%
Sub Total	2	4.0%	0	2	$27,020	0.1%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	1	2.0%	0	0	$1,010,581	4.8%
LIGHTNING	2	4.0%	0	1	$144,191	0.6%
HIGH WINDS	1	2.0%	0	1	$750,036	3.6%
OTHER NATURAL FORCE DAMAGE	2	4.0%	1	1	$856,400	4.1%
Sub Total	6	12.2%	1	3	$2,761,208	13.3%
OTHER OUTSIDE FORCE DAMAGE
VEHICLE NOT ENGAGED IN EXCAVATION	9	18.3%	4	2	$1,222,440	5.8%
ELECTRICAL ARCING FROM OTHER EQUIPMENT/FACILITY	1	2.0%	0	0	$210,005	1.0%
PREVIOUS MECHANICAL DAMAGE	1	2.0%	0	0	$605,348	2.9%
INTENTIONAL DAMAGE	2	4.0%	1	2	$106,436	0.5%
OTHER OUTSIDE FORCE DAMAGE	2	4.0%	0	1	$1,151,415	5.5%
Sub Total	15	30.6%	5	5	$3,295,644	15.8%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	3	6.1%	0	17	$1,711,449	8.2%
UNKNOWN CAUSE	7	14.2%	0	5	$4,652,941	22.4%
Sub Total	10	20.4%	0	22	$6,364,390	30.6%
Totals	49	100.0%	7	44	$20,760,238	100.0%

Export Table

Notes

1. Significant Incidents are those incidents reported by pipeline operators when any of the following conditions are met: 1) Fatality or injury requiring in-patient hospitalization. 2) $50,000 or more in total costs, measured in 1984 dollars. 3) Highly volatile liquid releases of 5 barrels or more or other liquid releases of 50 barrels or more. 4) Liquid releases resulting in an unintentional fire or explosion. Serious incidents, a subset of Significant Incidents, are incidents which involve a fatality or injury requiring in-patient hospitalization.
2. PHMSA has gathered increasingly targeted incident cause data over time. As such, the available reportable categories of cause (eg: Internal/External Corrosion vs Corrosion in general) have increased over time. This report spans time periods over which the reportable cause categories have changed. The cause categories in this report should be taken as general and not specific for years prior to 2002 for Liquid and Gas Transmission, and prior to 2004 for Gas Distribution.
3. Gas Distribution incidents where fire/explosion was the primary cause of failure, such as a house fire that subsequently resulted in - but was not caused by - a distribution line failure are excluded from 2004 onward. This exclusion has not been applied in years prior to 2004 due to difficulty in identifying these types of events with the older report formats.
4. The costs for incidents prior to 2012 are presented in 2012 dollars. Cost of Gas lost is indexed via the Energy Information Administration, Natural Gas City Gate Prices. All other costs are adjusted via the Bureau of Economic Analysis, Government Printing Office inflation values.
5. For years 2002 and later, property damage is estimated as the sum of all public and private costs reported in the 30-day incident report. For years prior to 2002, accident report forms did not include a breakdown of public and private costs so property damage for these years is the reported total property damage field in the report.

Sources

1. PHMSA Flagged Incidents File - April 30, 2013. Note: Incidents occurring up to 30 days prior the Incident File source date may not appear in these reports due to the 30-day reporting period allowed by PHMSA regulation.

See Pipeline Incidents and Mileage Reports for more pipeline safety reports.