SF Chronicle:

But are those issues – especially the regulatory ones – being addressed sufficiently and in time. Steinberg’s bill exempting Mather Field from painstaking environmental reviews has yet to be drafted, let alone sent to the Legislature, which doesn’t return to work until Aug. 4.
 Meanwhile, other sites have been suggested, including, I’m told, Concord Naval Weapons Station in Contra Costa County. That could further delay a formal package of proposals from California, which is up against a deadline set by Tesla. Sproule would not disclose the deadline, nor when the decision would be announced.