AUGUSTA — Republican U.S. Rep. Bruce Poliquin says new Environmental Protection Agency regulations could negatively impact a Maine mill.

Poliquin and Republican Rep. Mick Mulvaney of South Carolina expressed their concerns about new boiler regulations in a letter to EPA Administrator Gina McCarthy last week.

They say the rules could cause the Sappi paper mill in Skowhegan and a mill in South Carolina to spend millions of dollars to comply that could “otherwise be invested in efficiency, safety and job creation.” Poliquin noted that increasing costs forced three Maine mills to close last year, causing nearly 1,000 workers to lose their jobs.

The congressmen are asking the agency to resolve the issue to ensure that the regulations don’t place unnecessary burdens on the mills.