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simulated effects of ASR injection in the floridan aquifer system near lake okeechobee florida - a first approximation
Simulated effects of ASR injection in the Floridan aquifer system near Lake Okeechobee Florida - a first approximation
Summary
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The objective of this study was to assess the potential effects
of injecting and then withdrawing 0.5 bgd of water into the
Upper Floridan aquifer from 100 wells along the northern half of
Lake Okeechobee on the potentiometric surfaces of the Floridan
aquifer system north of the Lake. |
CERP's Aquifer Storage and Recovery (ASR) Project proposes to inject and
then withdraw up to 1.0 billion gallons per day (bgd) of surface water
into and out of the Upper Floridan aquifer (UFA) during wet and dry weather
conditions at selected sites near Lake Okeechobee (LO). An existing ground-
water flow model (Sepulveda, 2002) was used to assess the impact of injections
and withdrawals of 0.5 bgd into and from the UFA distributed among 100 wells
along the northern half of LO. Half the rate proposed was simulated because
only half of LO could be simulated in the existing model. Steady-state head
buildups and drawdowns in the UFA and Lower Floridan aquifer (LFA), caused by
the injections and withdrawals into the UFA, relative to the 1993-94
hydrologic conditions, were simulated using both, specified-head and
specified-flux boundary conditions, along the lateral boundaries of the UFA.
These two conditions were simulated to bracket the effects of these
injections or withdrawals on the UFA and LFA. Due to the proximity of the
injection/withdrawal wells along the perimeter of LO to the southern boundary
of the existing model, the resulting potentiometric surfaces can only be used
as a very rough approximation of the true effects on the UFA and LFA.
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