Table 2 - U.S. Gas Distribution Pipeline Incidents: 1995-2000
Monday, September 10, 2012
Table 2 - U.S. Gas Distribution Pipeline Incidents: 1995-2000
| Cause | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | Average | |
|---|---|---|---|---|---|---|---|---|
| 1995-2000 | Percent | |||||||
| Accidentally caused by operator | 6 | 6 | 4 | 7 | 6 | 7 | 6 | 5 |
| Construction/operating error | 5 | 6 | 4 | 5 | 8 | 9 | 6 | 5 |
| Corrosion, external | 3 | 1 | 3 | 6 | 4 | 4 | 4 | 3 |
| Corrosion, internal | 0 | 1 | 0 | 0 | 0 | 1 | 0.3 | 0.3 |
| Corrosion, not specified | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 0.4 |
| Damage by outside force | 66 | 64 | 57 | 89 | 72 | 82 | 72 | 60 |
| No data | 0 | 1 | 0 | 0 | 0 | 6 | 1 | 1 |
| Other | 17 | 31 | 34 | 30 | 26 | 45 | 31 | 25 |
| Total | 97 | 110 | 102 | 137 | 119 | 154 | 120 | 100 |
SOURCE: U.S. Department of Transportation, Research and Special Programs Administration, Office of Pipeline Safety, from Form RSPA F-7100.2, available at http://ops.dot.gov/stats.htm, as of Oct. 1, 2001.