[caveat emptor]

It will cut off all of the water supply of San Francisco and Peninsula cities,

Not quite. In the late 80s I lived above Los Altos Hills, right on the San Andreas fault, and commuted to SF via a drive to a Caltrain station in Palo Alto, took train to SF and walked to workplace. On the drive to and from home to Caltrain station I passed Crystal Springs reservoir, fed by water from Hetch Hetchy as well as local watershed.

Loss of water from Hetch Hetchy would represent a large but not total loss for the peninsula. As well, SF could bring in some water from Marin County, where I've lived as well.

Loss of Hetch Hetchy water would be a big loss, but not the total disaster as represented in this article.

[jwsea55]

Thanks for the info on the Marin supply.

They would still need to get across the bay. What about the other municipalities that are sold Hetch's water?

[old school]

I think that S.F. gets all of its electrical power from generators whose turbines are powered exclusively by Hetch Hetchy water.