A presentation on how the diversion of rain water to gardens is helping to restore one town's groundwater supply will highlight the annual meeting of the Mill River Wetland Committee on Thursday evening, March 6.

The educational group's 47th annual meeting will take place at 7 p.m. in the children's room of the Fairfield Public Library, 1080 Old Post Road.

The presentation is free and open to the public, and refreshments will be served at the meeting's conclusion, the group said.

Evan Welsh, of the Connecticut Fund for the Environment, will give a Power Point presentation on the Southington Rain Garden Program. The initiative is restoring that central Connecticut town's groundwater supply by diverting runoff from home roofs to home gardens, the Mill River group said.

Welsh will discuss how rain gardens can add beauty to homes while helping to control runoff that otherwise would find its way into storm drains. He also will talk about other green infrastructure programs used in the Quinnipiac River Watershed Groundwater Restoration Project, the Mill River group said in a news release.

Mill River Wetland Committee's mission is to strengthen environmental science education and develop general public understanding of river basin systems. Its River-Lab Program has been taught in the Fairfield public schools for more than 45 years, and the group says it now represents one-third of the science curriculum for grades three to six in the town's public and parochial schools.