Tesoro Logistics, which has headquarters in Texas, announced Thursday the spill soiled about 7 acres of land in a field in Tioga, N.D. The company said last week the pipeline was closed and the contaminated area was isolated.
Company spokeswoman Tina Barbee told the Platts news service the company was developing plans to restart the pipeline. She said in an interview published Monday the company would send its plans to pipeline regulators at the U.S. Department of Transportation once they're completed.
North Dakota officials said no waterways were soiled by the spill. Barbee said the company was "unable to provide a specific timeline" for full remediation.
Tesoro last week said it expected to spend $4 million on remediation.
It took 10 days for the company and North Dakota regulators to issue a public notification of the spill. The state government said that was typical for an incident where public health wasn't directly threatened.
Tesoro provided no update on the potential cause of the spill.
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