Remedies not stopping water pollution at Commerce City refinery

COMMERCE CITY — State-ordered remedies have not stopped toxic pollution from Suncor Energy’s oil refinery north of Denver — with new data showing benzene levels in Sand Creek and the South Platte River more than doubling last month.

Neither state regulators nor Suncor has calculated how much cancer-causing benzene and other contaminants have entered the waterways from an underground plume spreading from the refinery under the adjacent Metro Wastewater Treatment Plant.

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