The LLNRD is charged with protecting Nebraska's natural resources, including water quality, and erosion and sediment control. Well managed irrigation helps to protect against or reduce groundwater nitrates, and properly maintained wellheads are important factors, as well. Here you'll find a wealth of information about chemigation, water management and wellhead protection. If you have questions or need further assistance, the LLNRD staff is ready to help. Together we can help to keep Nebraska's groundwater clean and ready to serve generations to come.