Question: When developing a coal mine, the local aquifer needs to be completely dewatered and water needs to be pumped out of the mine for the

When developing a coal mine, the local aquifer needs to be completely dewatered and water needs to be pumped out of the mine for the duration of the operation. For an aquifer with an area of 100 acres, a thickness of 100ft and a porosity of 0.2, how much water is released during initial dewatering? (5 points) Given the catchment area is 10,000 acres, we can assume all recharge into the catchment now releases into the mine. Given 1200mmyr of rainfall, 50% of the rainfall becomes ET and 25% of the rainfall becomes surface runoff, how much water needs to be continuously pumped out during operation, at steady state? (5 points)
Discuss where the released water can be directed to.(optional +2 points)
When developing a coal mine, the local aquifer

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