thank you and tell us all about this one. >> steve ritchie, assistant general manager for water here speaking on the fillmore and green 16 inch water main break which in 14 years is probably within the top 3 in terms of community disruption, so this was a very big deal. just background on the san francisco water system. we actually have 24 pressure zones throughout the city. this map shows those pressure zones and where all the water mains are. there are about 1250 miles of water mains serving all most a million residents and workers in san francisco during the day, so a very long complex system we have. the main break occurred on the evening of september 10 and 11. there was a break on 16 inch water transmission main. the transmission is supplying water and keeping pressure up. distribution goes straight to houses. the break was on the 16 inch main and also disrupted the 8 inch disbution main. the release of water undermine the fillmore and green intersection. the red hatched area there is the area that was physically disrupted in the streets and the blue where it runs down hill eff

thank you and tell us all about this one. >> steve ritchie, assistant general manager for water here speaking on the fillmore and green 16 inch water main break which in 14 years is probably within the top 3 in terms of community disruption, so this was a very big deal. just background on the san francisco water system. we actually have 24 pressure zones throughout the city. this map shows those pressure zones and where all the water mains are. there are about 1250 miles of water mains serving all most a million residents and workers in san francisco during the day, so a very long complex system we have. the main break occurred on the evening of september 10 and 11. there was a break on 16 inch water transmission main. the transmission is supplying water and keeping pressure up. distribution goes straight to houses. the break was on the 16 inch main and also disrupted the 8 inch disbution main. the release of water undermine the fillmore and green intersection. the red hatched area there is the area that was physically disrupted in the streets and the blue where it runs down hill eff