The Bay Area is gripped by an historic housing shortage and affordability crisis. A plan being circulated now by state water officials will only make it worse. The State Water Resources Control Board wants to cut water supplies to 2.6 million Bay Area residents in San Francisco, Silicon Valley and the East Bay by up to 50 percent at the first sign of any future drought. The proposed cuts will dramatically reduce our ability to build the new housing we so badly need, even as we struggle to close a massive housing deficit that has been decades in the making.