Cleanup was underway Monday morning after a diesel spill in Otay Mesa.
An estimated 75 gallons of diesel fuel spilled not only onto the ground but also into storm drains from the Home Depot parking lot on Dennery Road.
The spill happened around 11:30 p.m. Sunday and crews were still working on the cleanup hours later.
Not only were they hosing off the lot, they also worked to siphon the spilled fuel out of affected storm drains.
The area was blocked off with caution tape because of the environmental hazard, officials said.
NBC 7 has learned the fuel spilled out of a semi with a broken fuel tank.