Elisa Lam was last seen January 31 . Tests conducted by the city Health Department found no harmful bacteria in the tank or the pipes , which had to be drained , flushed and sanitized after the discovery . Her parents called to report her missing February 6 . The search for the girl has been expanded from a small area of San Francisco Bay into neighboring counties and includes helicopters, boats and planes. Guests said black water could come out of tap for a few seconds , then run clear .
Elisa Lam was last seen January 31 . Her parents called to report her missing February 6 . The search for the girl has been expanded from a small area of San Francisco Bay into neighboring counties and includes helicopters, boats and planes. Guests said black water could come out of tap for a few seconds , then run clear .