Feds: Over-pres­sur­ized lines caused deadly gas ex­plo­sions in Mass­a­chu­setts

Chicago Sun-Times - - NATION/WORLD -

BOS­TON — Over-pres­sur­ized nat­u­ral gas lines were the source of deadly ex­plo­sions and fires that rocked com­mu­ni­ties north of Bos­ton last month, the Na­tional Trans­porta­tion Safety Board said Thurs­day.

The pre­lim­i­nary re­port found that util­ity work­ers con­tracted by Co­lum­bia Gas had failed to ac­count for crit­i­cal pres­sure sen­sors as they re­placed cen­tury-old cast-iron pipes in Lawrence on Sept. 13. That omis­sion caused high-pres­sure gas to flood the neigh­bor­hood’s dis­tri­bu­tion sys­tem, trig­ger­ing more than 80 ex­plo­sions and fires across the city, as well as neigh­bor­ing North An­dover and An­dover.

One per­son was killed and about 25 oth­ers were in­jured in the en­sur­ing chaos.

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