Project staff have now drilled, logged, installed, and sampled 4 standard and 8 7-channel wells to depths of nearly 20 m below bottom in water depths up to 1.3 m and distances up to 225 m from the shore of Indian River Bay. Downhole geophysical logs and well samples have documented the presence of a vertical salinity profile that crosses two salinity interfaces: saline (30-45 mS) to fresh (1-3 mS) at depths of 2-6 m below bottom and fresh to saline at depths of 9 to 13 m below bottom. Physical and chemical measurements in an additional 14 wells installed onshore are being used to characterize the flow field and geochemistry of the freshwater system. This work is integrated with broader project efforts to characterize SGD that include experiments using marine and land-based geophysics, seepage meters, pore-water samplers, geochemical analysis, and numerical simulation.
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