Martha G. Nielsen

• Estimated quantity of water in fractured bedrock units on Mt. Desert Island, and estimated ground-water use, recharge, and dilution of nitrogen in septic waste in the Bar Harbor area, Maine
• Hydrogeomorphic classification of wetlands on Mt. Desert Island, Maine, including hydrologic susceptibility factors for wetlands in Acadia National Park
• Methyl tert-butyl ether (MTBE) in ground water, air, and precipitation at North Windham, Maine
• Simulation of groundwater conditions and streamflow depletion to evaluate water availability in a Freeport, Maine, watershed