Not quickly enough. And, a tiny amount goes a long way.
The LSD in the reservoir scare is old 60s tinfoil, deliberately started by the Yippies to create an atmosphere of chaos for the Democratic Convention in Chicago in 1968. It's fantasy. The Yippies laughed over doobies that it was ever taken seriously. Check out "Revolution for the Hell of It" or "Soon to be a Major Motion Picture" by Abbie Hoffman. The story is in at least one of those books, if not both. It's been 20 years since I read them.
Trust me on this, I went to Berkeley.