Streamflow and Stream Quality in the Coal-Mining Region, Patoka River Basin, Southwestern Indiana, 1983-85

摘要

The report describes the results of a study by the U.S. Geological Survey to determine the streamflow and stream quality in the Patoka River and its tributaries, including the South Fork Patoka River and its tributaries. The South Fork Patoka River is the largest tributary to the Patoka River. Because the flow in the Patoka River is regulated by Patoka Lake, data collection was designed to represent four different flow conditions in the Patoka River: Dry-weather steady-state low flows with large releases of water from Patoka Lake; dry-weather steady-state high flows with small releases of water from Patoka Lake; wet-weather nonsteady-state high flows with small releases of water from Patoka Lake; and wet-weather nonsteady-state high flows with large releases of water from Patoka Lake. The tributaries were sampled four times at two different flow conditions--twice during dry-weather steady-state low flows and twice during wet-weather nonsteady-state high flows.