Aboveground Storage Tank Sites

This GIS Feature Layer shows the locations and key attributes of registered Aboveground Storage Tank (AST) sites across New Hampshire, as maintained by the New Hampshire Department of Environmental Services (NHDES). The dataset supports environmental oversight, regulatory compliance, and emergency preparedness related to the storage of petroleum and hazardous substances. It includes ASTs located at commercial, industrial, municipal, institutional, and qualifying residential or agricultural properties. Each feature contains detailed information such as site ID, facility name, tank number, location coordinates, and a link to the NHDES OneStop portal. Regularly updated, this layer is a vital tool for planners, regulators, and the public to assess environmental risk and support informed decision-making.