General Lake Health

A GRP athlete scuba dives to bag and remove milfoil in Great Hosmer Lake.

Part of the Outdoor Center's mission is to protect and manage our lake, Great Hosmer Pond. Supporting the ecological health of the lake ensures that the immediate community and its constant flow of visitors will be able to enjoy the recreational opportunities this area provides. John Brodhead has spearheaded two ongoing projects: water quality monitoring and milfoil management. Because Great Hosmer Pond is part of the State of Vermont's lay monitoring program, we collet water samples and Secchi disk readings weekly. These data and samples are collected by the State for lab testing. Lay monitoring provides data on chlorophyll and phosphate levels, water clarity, as well as an opportunity to keep tabs on the health of our greater regional watershed.

Like many bodies of water, Great Hosmer Pond is home to Eurasian milfoil, an invasive aquatic plant that first showed up near the public access area in 2001. Milfoil can completely take over a lake, pushing out native plants and inhibiting swimming and boating. Managing this problem involves tremendous manpower and community support, which has come from volunteers, lake neighbors, COC employees, GRP rowers and skiers, and SBTC rowers. Management primarily comes in the form of regularly spotting and marking milfoil plants with buoys and pulling and properly disposing of the plants diligently throughout the summer.