The California Stormwater Quality Association (CASQA) is the largest professional association dedicated to the advancement of stormwater quality management through collaboration, education, implementation guidance, regulatory review, and scientific assessment. For over a quarter century, CASQA has assisted municipalities, special districts, businesses, the state of California, and the United States Environmental Protection Agency in developing and implementing effective stormwater quality management programs in response to municipal, industrial, and construction NPDES stormwater permit requirements. The CASQA Annual Conference offers a full agenda of stormwater focused training workshops, presentations, and exhibits, as well as a unique opportunity to interact with professionals in the stormwater field. Each year the conference draws leading members of the stormwater community including local, state, and federal decision makers, stormwater program coordinators, contractors, consultants, engineers, lawyers, scientists, and planners.