“Mr. Kelly said having those controls by April 1 was something the steelmaker objected to, but the county felt it was important as a way to take a significant step toward meeting the April 15 deadline for 100 percent desulfurization. . .
“Another main point in the order was requiring U.S. Steel to provide weekly data from its on-site internal measurements on emissions from its stacks. The county has monitors off site that read the ambient air.
“But Mr. Kelly said getting on-site data is crucial to assessing whether repairs and other changes are working to reduce pollution.
“‘Our point is this: We want to reduce emissions as soon as possible,’ he said. ‘These are steps toward that.'”
FULL STORY March 12, 2019 via Pittsburgh Post-Gazette