By Don Behm, the Journal Sentinel.

Advanced Disposal Services will provide the Milwaukee Metropolitan Sewerage District with up to $14.5 million worth of free landfill gas over 25 years from the Emerald Park Landfill in Muskego, under terms of a revised contract negotiated to settle district claims against the company.

Advanced Disposal, owner of Emerald Park, has not delivered even the minimum annual amount of landfill gas required under the original contract, providing only 29% of the contract minimum flow in 2015 and less than one-third in 2014, records show.

"They have not been able to meet the production schedule," MMSD Executive Director Kevin Shafer said.