Leland Searles

Air Quality Program Director

Iowa Environmental Council

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Perfect timing with example of oil spills and accidents associated with oil and gas drilling, after Obama's opening offshore drilling in the Atlantic, Gulf of Mexico and Arctic Ocean.  Phyllis

NEW ORLEANS - A deepwater oil platform that burned for more than a day after a massive explosion sank into the Gulf of Mexico on Thursday, creating the potential for a major spill as it underscored the slim chances that the 11 workers still missing survived.

The sinking of the Deepwater Horizon, which burned violently until the gulf itself extinguished the fire, could unleash more than 300,000 of gallons of crude into the water every day. The environmental hazards would be greatest if the spill were to reach the Louisiana coast, some 50 miles away.

Crews searched by air and water for the missing workers, hoping they had managed to reach a lifeboat, but one relative said family members have been told it's unlikely any of the missing survived Tuesday night's blast. More than 100 workers escaped the explosion and fire; four were critically injured.

Carolyn Kemp of Monterey, La., said her grandson, Roy Wyatt Kemp, 27, was among the missing. She said he would have been on the drilling platform when it exploded.

"They're assuming all those men who were on the platform are dead," Kemp said. "That's the last we've heard."

A fleet of supply vessels had shot water into the rig to try to control the fire enough to keep it afloat and keep oil out of the water. Officials had previously said the environmental damage appeared minimal, but new challenges have arisen now that the platform has sunk.

The well could be spilling up to 336,000 gallons of crude oil a day, Coast Guard Petty Officer Katherine McNamara said. She said she didn't know whether the crude oil was spilling into the gulf. The rig also carried 700,000 gallons of diesel fuel, but that would likely evaporate if the fire didn't consume it.

Coast Guard Rear Adm. Mary Landry said crews saw a 1-mile-by-5-mile sheen of what appeared to be a crude oil mix on the surface of the water. She said there wasn't any evidence crude oil was coming out after the rig sank, but officials also aren't sure what's going on underwater. They have dispatched a vessel to check.

The oil will do much less damage at sea than it would if it hits the shore, said Cynthia Sarthou, executive director of the Gulf Restoration Network.

"If it gets landward, it could be a disaster in the making," Sarthou said.

Doug Helton, incident operations coordinator for the National Oceanographic and Atmospheric Administration's office of response and restoration, said the spill is not expected to come onshore in next three to four days. "But if the winds were to change, it could come ashore more rapidly," he said.

At the worst-case figure of 336,000 gallons a day, it would take more than a month for the amount of crude oil spilled to equal the 11 million gallons spilled from the Exxon Valdez in Alaska's Prince William Sound.

The well will need to be capped underwater. Coast Guard Petty Officer Ashley Butler said crews were prepared for the platform to sink and had the equipment at the site to limit the environmental damage.


The U.S. Minerals Management Service, which regulates oil rigs, conducted three routine inspections of the Deepwater Horizon this year - in February, March and on April 1 - and found no violations, agency spokeswoman Eileen Angelico said.

The rig was doing exploratory drilling about 50 miles off the coast of Louisiana when the explosion and fire occurred, sending a column of boiling black smoke hundreds of feet over the gulf.

Rose has said the explosion appeared to be a blowout, in which natural gas or oil forces its way up a well pipe and smashes the equipment. But precisely what went wrong was under investigation.

"I've been working offshore 25 years and I've never seen anything like this before," said the man, who like others at the hotel declined to give his name.

Stanley Murray of Monterey, La., was reunited with his son, Chad, an electrician aboard the rig who had ended his shift just before the explosion.

"If he had been there five minutes later, he would have been burned up," Stanley Murray said.

Rose said the crew had drilled the well to its final depth, more than 18,000 feet, and was cementing the steel casing at the time of the explosion. They had little time to evacuate, he said.

The blast could be among the nation's deadliest offshore drilling accidents of the past half-century.