A water injection line for an oil drill near Spring Street and Orange Avenue burst Thursday morning, causing pressurized hot salt water to spray out into a storm drain and triggering a hazmat response, officials said.

Signal Hill police shut down both westbound lanes on Spring Street between California and Orange Avenues while crews mopped up the mess.

Signal Hill Watch Commander Don Moreau said the salt water sprayed out onto a nearby electrical pole, causing an electrical arc and sparks, which were then quickly extinguished by the water itself.

The outage caused a few loud booms and knocked out power in the area too, he said. According to Southern California Edison’s outage map, two customers will be without power until about 6 p.m.

Debra Russell, spokeswoman for Signal Hill Petroleum, said SHP immediately shut down the line and is now in the process of repairing it.

Moreau said the hazmat response is automatic when any substance leaks into a storm drain and the only substance spilled was the hot salt water that’s used to inject into the oil wells.

“Now it’s mostly just a mop up of mud debris from water that was sprayed out,” Moreau said.

Eastbound traffic on Spring Street is open and they expect to reopen one lane of westbound traffic soon, he said.

Editor’s note: This story has been updated to add comments from Signal Hill Petroleum.