Lawmakers call for Hetch Hetchy study By Stuart Leavenworth -- Bee Staff Writer Published 2:15 am PDT Tuesday, September 14, 2004 Two California legislators are calling for a state study to examine if a submerged valley in Yosemite National Park could be restored without hurting water and power supplies. In a Sept. 9 letter, Assemblyman Joe Canciamilla, D-Pittsburg, and Lois Wolk, D-Davis, urged Gov. Arnold Schwarzenegger to endorse a restoration study for the Hetch Hetchy Valley, which was inundated and turned into a reservoir for San Francisco in 1923. "We feel this idea is worthy of review by the State...