The Clark County Clean Water Commission is hosting the Vancouver Lake Symposium from 9 a.m. to 4 p.m. Oct. 17 at the Vancouver Water Resources Education Center, 4600 S.E. Columbia Way, to foster dialog about strategies to improve water quality in the Vancouver Lake watershed. The agenda includes presentations from Clark County, the Washington State Department of Ecology, and more. Members of the public can attend online via Webex. Online meeting information can be found at clark.wa.gov/public-works/clean-water-commission.