23rd November 2011 Gas line explodes near Batesville, Mississippi - probable weld failure
16th November 2011 Gas line explodes near Glouster, Ohio, destroys 3 Homes, Barn- CONFIRMED WELD FAILURE
10th Feb 2011, Hanover County, Ohio, a Tennessee Gas pipeline exploded. CONFIRMED WELD FAILURE
On March 11, 2011, PHMSA issued a Notice of Proposed Safety Order (Notice)1 to Tennessee Gas, alleging that certain segments of Respondent's natural gas pipeline system designated as the Line 200 Pipeline System had conditions that, without corrective measures, would pose a pipeline integrity risk to public safety, property, or the environment. Specifically, the Notice alleged that the conditions causing a February 10, 2011 failure on Line 200-4 in mainline valve section 214 (Line Section 214-4), approximately 2.5 miles southeast ofthe town of Hanoverton, Ohio, and the March 1, 2011 failure on Line 200-1 in mainline valve section 209 (Line Section 209-1), approximately 0.5 miles downstream of the Cambridge Compressor Station 209, demonstrated the presence of integrity risks on those segments of Lines 200-1, 200-2, 200-3, and 200-4 running from Compressor Station 200 to Compressor Station 219, including the Pittsburg Spur (Affected Segments). PHMSA and Tennessee Gas entered into a Consent Agreement that was incorporated by reference into a Consent Order issued on March 31, 2011.2
FYI, most of Columbia Gas Transmission's property in West Virginia constitutes a Superfund site due to high levels of PCB's, Benzene, Toluene, and Xylene and Mercury in adition to various Polycyclic Aromatic Hydrocarbons. They were ordered to clean up in 1994, and are still doing it. So much for "Clean Natural Gas".
"Prior to 1976, polychlorinated biphenyls (PCBs) were widely used by industry in lubricating oils for electrical equipment and hydraulic systems because of their exceptional heat transfer characteristics. Portions of Columbia's pipeline, including natural gas compressors, have become contaminated with PCBs. Columbia maintains that these PCBs have been introduced into its pipeline system as a result of interconnections with natural gas transmission pipelines of other companies that used lubricating oil containing PCBS, and that Columbia did not use PCB lubricating oils in its natural gas compressors.