EXPLAINER: What’s happening with the California oil spill?

Oct 7, 2021, 9:17 PM | Updated: 9:24 pm
Birds are seen as workers in protective suits clean the contaminated beach after an oil spill in Ne...

Birds are seen as workers in protective suits clean the contaminated beach after an oil spill in Newport Beach, Calif., on Wednesday, Oct. 6, 2021. A major oil spill off the coast of Southern California fouled popular beaches and killed wildlife while crews scrambled Sunday, to contain the crude before it spread further into protected wetlands. (AP Photo/Ringo H.W. Chiu)

(AP Photo/Ringo H.W. Chiu)

HUNTINGTON BEACH, Calif. (AP) — Oil has been washing up on some Southern California beaches since a leak in an underwater pipeline from an offshore platform sent tens of thousands of gallons of heavy crude into the ocean waters. The spill fouled the famed sands of Huntington Beach, known as Surf City USA, and could keep the ocean and shoreline closed there and in some other communities to the south for weeks.

Here’s a look at what happened, who’s involved and the aftermath:

WHAT HAPPENED?

Boaters off Orange County and residents of Newport Beach started reporting a petroleum smell in the air and oily sheen on the water Friday afternoon, Oct. 1.

The following morning the Coast Guard confirmed a spill. The sheen on the ocean was miles wide and crude started washing ashore in sticky, black blobs. The leak occurred about 5 miles (8 kilometers) offshore at a depth of about 98 feet (30 meters) and came from a pipeline owned by Amplify Energy. The Houston-based company also owns and operates three nearby offshore platforms that pipe oil into Long Beach.

Oil first washed up in Huntington Beach, including Talbert Marsh, a sensitive wetland. Crude was later spotted down the Orange County coast, in Newport Beach, Laguna Beach and Dana Point. By Thursday tar balls were reported washing up in Carlsbad, in San Diego County.

HOW MUCH OIL LEAKED?

It’s still a mystery.

Amplify Energy publicly said no more than 126,000 gallons (477,000 liters) flowed from its pipe. But the company also told federal investigators the total may be 29,400 gallons (111,300 liters). On Thursday, the Coast Guard announced its own estimate of at least about 25,000 gallons (95,000 liters) and no more than 132,000 gallons (500,000 liters).

David Pettit, a senior attorney at the environmental group Natural Resources Defense Council, finds it hard to believe Amplify doesn’t know how much oil it lost. “If they know what the flow rate was in the pipeline, and how much the pressure dropped, and for how long, you could calculate that in a matter of minutes,” Pettit said.

HOW WAS THE LEAK DISCOVERED?

A commercial vessel anchored off Huntington Beach reported to a national hazardous spill hotline staffed by the Coast Guard that it saw a sheen more than 2 miles (3 kilometers) long just after 6 p.m. Friday night.

A satellite image shot by the European Space Agency indicated a likely oil slick in the area around 7 p.m., which was reported to the Coast Guard at 2:06 a.m. Saturday after being reviewed by a National Oceanic and Atmospheric Administration analyst.

The Coast Guard said it did not act on either report, deciding to wait until daybreak because darkness and a lack of technology would hamper its search for oil.

Amplify CEO Martin Willsher said the company did not discover the leak until it saw oil in the water at 8:09 a.m. Saturday.

However, other reports indicate the company had signs of a leak as early at 2:30 a.m. Saturday. Federal regulators said an alarm on Platform Elly alerted a control room operator at that time to a drop in pipeline pressure that could indicate a leak.

The company did not report the leak until 8:55 a.m., according to the California Office of Emergency Services. The company that reported the leak on behalf of Amplify said the incident occurred at 2:30 a.m.

Around the time the company reported the spill, the Coast Guard said it located oil in the water.

WHO’S RESPONSIBLE?

The cause is under investigation.

Amplify CEO Martin Willsher first suggested Monday that an anchor from one of the many commercial vessels that use the massive Los Angeles-Long Beach port complex might be to blame. The next day the Coast Guard said divers found that a 4,000-foot (1,219-meter) section of the pipeline was “laterally displaced” by about 105 feet (32 meters). It’s bent “like a bow string,” Willsher said.

Video of the ruptured pipeline released by the Coast Guard showed a thin 13-inch-long (33-centimeter) crack that experts said could indicate a slow leak that initially was difficult to detect.

Federal transportation investigators said preliminary reports suggest the failure may have been “caused by an anchor that hooked the pipeline, causing a partial tear.”

On Wednesday, Coast Guard investigators boarded the Rotterdam Express, a massive German-flagged container ship that was assigned an anchorage closest to where the pipeline ruptured.

Hapag-Lloyd, the shipping company that operates the vessel, said the Coast Guard interviewed the captain and crew and was provided access to the logbook showing the ship’s locations. Afterward, the Coast Guard called the company to say the Rotterdam no longer was under scrutiny for the spill, the company said. The Coast Guard did not comment.

WHAT’S THE ENVIRONMENTAL IMPACT?

That will depend on how much oil is out there.

Local officials, who feared an environmental catastrophe at first, have more recently voiced hope that the total spill will be less than initially feared. So far, only a handful of oiled birds have been recovered. Teams are out searching for affected animals in the spill area and beyond. Environmentalists say it’s too soon to know how many seabirds, marine mammals and other animals will ultimately be affected by the oily film covering marsh areas and floating on the ocean — or for how long.

Researchers say the impact on animals will take a while to understand. They are just starting to learn about some of the long-term effects from the 2010 Deepwater Horizon oil spill. And many problems remain unseen as oil components build beneath the surface of the ocean.

Out on the water by the rigs, there’s no visible sheen and no stench of oil like the putrid odor that pervaded Huntington Beach in the days after the incident.

Copyright © The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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EXPLAINER: What’s happening with the California oil spill?