the people of woburn ma. were lucky. the same thing that happened in lawrence and andover with there gas main happened again. they over pressured the low pressure gas lines with abnormal pressure but luckily they caught it before it could get to high and fire up the houses they feed over 300 houses. it's going to get to a point were we shut off the gas unless we need it for hot water because we can't trust it. sounds stupid but when you leave your house for work you would expect to see it whole when you return.