NY Post - July 21, 2011by SABRINA FORD and REBECCA HARSHBARGER
Plant workers were evacuated after the blast in the engine room on West 135th Street, near Twelfth Avenue around 11:45 a.m.
None were injured, but fuel in the plant caused the blaze to hit four alarms, said a fire department spokesman.
Streets were temporarily closed and a park was evacuated.
It took 170 firefighters about three hours to place the fire under control around 3 p.m.
Power is switched off at the plant, but the city hopes to reopen it soon, said a Department of Environmental Protection spokesman.
The city's water faces no health risks from the disruption caused by the blaze.
The cause of the explosion is still under investigation.