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U.S. Geological Survey, in cooperation with Miami-Dade County, performed a sequential, aquifer stress test from August 15 to October 12, 2011, on the Floridan aquifer system at the North District Wastewater Treatment Plant, in Miami-Dade County, Florida. Miami-Dade County stressed the Floridan aquifer system with four municipal injection wells at the North District Wastewater Treatment Plant. Injection wells IW–1, IW–3, and IW–4 stressed the aquifer system with injection of as much as 1.8 cubic meters of effluent per second. Injection well IW–2 stressed the aquifer system with pressure release from the injection zone, caused by reverse flow of as much as 0.04 cubic meters of formation fluid mixed with effluent...
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Streamflow and phosphorus concentrations were monitored in the Assabet River in central Massachusetts in order to evaluate concentrations and loads in the river before, during, and after changes in the amount of total phosphorus that was discharged to the river from three wastewater-treatment plants. At four locations the U.S. Geological Survey collected weekly flow-proportional, composite samples of water from the Assabet River for analysis of concentrations of total phosphorus and orthophosphate. Streamflow and concentration data were used to estimate total phosphorus and orthophosphate loads in the river and compare them with total phosphorus load outputs from three wastewater-treatment plants. Data were collected...


    map background search result map search result map Pressure and flow rate measurements to support hydraulic tomography of the Floridan aquifer system at the North District Wastewater Treatment Plant, Miami-Dade County, Florida Streamflow and total phosphorus and orthophosphate data for samples collected in and near the Assabet River, Massachusetts, October 2008 through April 2014 Pressure and flow rate measurements to support hydraulic tomography of the Floridan aquifer system at the North District Wastewater Treatment Plant, Miami-Dade County, Florida Streamflow and total phosphorus and orthophosphate data for samples collected in and near the Assabet River, Massachusetts, October 2008 through April 2014