28 FLORIDA GEOLOGICAL SURVEY
Figures 10 and 11 show the computed drawdown after an infinite period of pumping for the second pattern of pumping. The drawdowns shown in figure 10 were computed on the assumption that no water was pumped from the west line of wells and that the pumping rate of 17.4 million gallons per month was divided equally among the pumps (19.2 gpm per pump) in the east and south lines of wells. The maximum computed drawdown beneath the centerline of the waterway for these conditions was slightly more than 10 feet.
The computed drawdowns shown in figure 11 were based on a pumping rate of 11.4 million gallons per month equally divided among the pumps in the east and south lines of wells. This pumping rate is the same per pump (12.6 gpm) as the pumping rate of 17.4 million gallons per month divided equally among all the pumps in the well field. The maximum drawdown beneath the centerline of the waterway for these conditions was computed to be slightly less than 7 feet.
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Figure 10. Computed drawdown along proposed waterway due to pumping 17.4 million gallons per month from the east and south lines of wells of the Venice well field.