Environment

HB 707 requires New Hampshire's Department of Environmental Services to establish site-specific setback distances for new landfills from perennial rivers, lakes, and coastal waters. It mandates that setbacks must be calculated using a formula based on groundwater seepage velocity testing (conducted by an independent hydrogeologist) and must be at least 3,000 feet or the 5-year groundwater travel distance, whichever is greater. The bill directly affects developers seeking permits for new landfills by imposing these distance requirements to protect water sources from contamination. It also includes additional safeguards like 24/7 landfill staffing, restrictions on building near Superfund sites or existing landfills, and soil permeability standards. The law does not apply to expansions of currently operating landfills.

HB 1478 requires New Hampshire's Department of Environmental Services to revise rules for new landfills to better protect public health and the environment. The bill mandates that new landfills must maintain a minimum 1,500-foot setback from drinking water wells, rivers, lakes, and coastal waters, calculated using a specific groundwater travel distance method. This method requires applicants to hire independent hydrogeologists to test groundwater velocity and ensure contamination cannot reach water sources within five years. The rule changes directly affect landfill applicants and the Department, replacing current rules deemed insufficiently protective of water resources.