The Stillwater Public Library is partnering with the Grand River Dam Authority (GRDA) to provide a class on water quality impacts and how to improve water quality in yards. The class is Tuesday, Oct. 3, at 6 p.m. Jeri Fleming, ecosystems and watershed management at GRDA, will lead the class. Participants will get wildflower seeds and a rain barrel to take home. Registration is required at stillwaterok.gov/LibraryRegister as space and supplies are limited.