The Water Quality Multi-year Plan (MYP) is one of 16 MYPs developed by the Office of Research and Development. The purpose of the MYPs is to aid ORD as a planning and communication tool. Multi-year planning allows ORD to consider the future strategic direction of the Agency, as described in the EPA and ORD Strategic Plans, and determine where scientific discovery can contribute. MYPs also help ensure the relevance, quality, and performance of our research program. The primary client for the Water Quality MYP is the U.S. EPA's Office of Water. The research to support the Office of Water's Goals under the Clean Water Act (CWA) is described, or referenced, in this document.