State Certifies Omya Tailings Plan

Omya Inc. has received a draft certification to dispose of its chemically tainted calcium carbonate waste in a lined facility in Vermont. The $1.5 million lined tailings management facility dovetails with the company’s $10 million dewatering plant. The plant removes 85 percent to 90 percent of the water from the waste, which is pumped back into the plant for reuse. The draft certification requires a single, high-density polyethylene double liner and leachate collection system.