Plaintiffs in the original lawsuit against DuPont are taking issue with newly-released testing results of workers at the company's Washington Works plant in Wood County.

It all began Tuesday, with the release of those test results stating there was no increased mortality risk from C-8 Washington Works employees.

Then, late Wednesday, a motion filed by the original plaintiffs in a lawsuit filed five years ago claimed the company won't allow a three-member science panel to study those same workers.

The panel is screening test results from people living along the Ohio River is part of a 2004 settlement of that class-action lawsuit.

Thursday, DuPont awswered that motion by saying simply, that's not true.

"From phase one of the health study, we shared that information with the science panel back in 2005," Washington Works manager Bill Hopkins told us Thursday afternoon. "Just this week, when phase two was completed, we shared that with the science panel. DuPont has openly participated in every aspect we feel is possible. We do believe the science panel should be focused on the community study, and the lawsuit has make it clear that DuPont should finish up the worker study it had under way prior to the litigation, and we completed that study."

in a written statement, du-pont says any more follow-up studies on its workers are best conducted by its own advisory board.

And the United Steelworkers Union is also weighing in on the controversy, releasing its own statement Thursday challenging DuPont's remarks.

"DuPont is using this flawed study to justify the continued production of this controversial chemical and mislead the public into believing there is no evidence linking human health effects to PFOA exposure," April Dreeke, USW Strategic Campaigns researcher, said. "We're demanding an immediate release of the complete study so the public does not have to rely on DuPont's word."

The steelworkers union represents 1800 DuPont employees, although none of them work at Washington Works.