Later today city officials and neighborhood groups will break ground on a project to build wetlands around Lake Nokomis. The water quality of the lake is declining because rain water drains into the lake and brings with it phosphorous from lawn fertilizers and other contaminants from the surrounding area. The new wetlands will filter the water before it drains into the lake. Joining MPR News to comment is Pam Blixt, president of the board of the Minnehaha Creek Watershed District.