Explore a 23-minute conference talk from the 2014 AGU Fall Meeting that delves into identifying methane sources in groundwater and quantifying changes in compositional and stable isotope values during multiphase transport. Learn about fugitive methane, dissolution transport, Rayleigh removal, and dynamic partitioning. Discover the experimental design and results, including carbon isotope effects and noble gas analysis. Gain insights into the processes, monitoring, and stewardship related to natural and anthropogenic contamination of water resources in oil and gas production from unconventionals.