MADISON, Wis. (AP) -

The state Department of Natural Resources has launched a review of water use at Peninsula State Park as part of a project designed to help improve water efficiency across the state park system.

The DNR has hired a Franklin-based plumbing company to test Peninsula State Park's toilets, pipes and other plumbing for leaks and gauge the plumbing's efficiency.

After the plumbing company files its report the DNR will decide what improvements to make immediately at the Door County park. The project includes a follow-up review in May 2014.

The study is part of a project aimed at developing recommendations to cut all state parks' water use and costs.