Nonpoint source pollution is a type of water pollution that is not generated from a discrete conveyance, such as a discharge pipe, but is generated during rainfall events. Section 319 of the Clean Water Act (CWA) required that the states develop a NPS Management Plan to reduce and control nonpoint sources of pollution from the various types of land-uses that contribute to water quality problems across the United States. Some of these categories can also be defined as point source discharges and may require a storm water permit. Louisiana determined that agriculture, forestry, urban runoff, home sewage systems, sand and gravel mining, construction and hydromodification all contribute to nonpoint source pollution problems across the state. Nonpoint source pollution is the largest remaining type of water pollution that needs to be addressed within Louisiana and across the nation in order to restore the designated uses (i.e. fishing and swimming) to the impaired water bodies.
Louisiana’s NPS Program is managed by the Louisiana Department of Environmental Quality (LDEQ), and is a collaborative effort that includes many partners. Our goal is to educate people about NPS pollution and best management practices (BMPs) that can be implemented to reduce and control this type of pollution. The State of Louisiana has applied for and received Section 319 funds to implement both statewide and watershed projects to address nonpoint source pollution. Summaries of these projects have been included along with an interactive mapping tool to illustrate where the projects are located within the State.