Please NO - 85% of SF's water comes from Hetch Hetchy / Tuolumne. Don't shut SF down. If the reservoir is drained SF will be last to have a claim on Tuolumne water. Clean water, clean power, and it won't cost another cent to keep what we have.
By the way - the studies for alternatives already exist - no need to spend stressed public funds to re-do these studies. How about spending that $8mil on schools?
John Muir was a lovely man, but John Muir is dead - should one dead man's pet dream from a century ago be lauded over and above the public good of the entire population of SF?