A preliminary assessment of the potential for artificial recharge in eastern Arkansas

Fitzpatrick, Daniel

doi:10.3133/wri904123

Cited by 3 publications

(3 citation statements)

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“…The total amount of water needed for irrigation at the site, s, is, ∑ m l=1 ∑ k i=1 wr sli A sli (t), which equals the sum of groundwater use, GW s (t), and on-farm reservoir water use, RW s (t). The well injection would operate over 6 months (October-April) when surplus water is available, no irrigation occurs, and obtaining water rights is the most flexible (ANRC, 2014;Fitzpatrick, 1990). Groundwater wells are assumed to be dual purpose, useful for both recharging surplus surface water in the winter and early spring, followed by pumping groundwater during periods of irrigation.…”

Section: Maximization Of the Objective Function (Equationmentioning

confidence: 99%

“…We rely on two sources of information to estimate the maximum injection rate into a groundwater well: the hydrogeologic properties of the aquifer that affect the rate (Cooper, 1946;Theis, 1935) and results from actual recharge tests in the region (Fitzpatrick, 1990;Kresse et al, 2014). Cooper (1946) simplified the Theis equation for large values of time, t, and/or small values for the well radius, r:…”

Section: Maximization Of the Objective Function (Equationmentioning

confidence: 99%

“…Applying those techniques requires the consideration of many factors such as the geological, geochemical, hydrological, biological, and engineering aspects (Bouwer, 2002;Levintal et al, 2022;Reba et al, 2015). Recharge feasibility has been tested with several pilot projects (Fitzpatrick, 1990;Hays, 2001;Reba et al, 2015;Rigby, 2017), and there is high potential to effectively enhance the aquifer sustainability.…”

Section: Introductionmentioning

confidence: 99%

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Hydro‐economic modeling of managed aquifer recharge in the lower Mississippi

Ali

Tran²,

Kovacs

et al. 2023

J American Water Resour Assoc

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The Mississippi Embayment aquifer is one of the largest alluvial groundwater aquifers in the United States. It is being excessively used, located along the lower Mississippi River covering approximately 202,019 km2 (78,000 square miles). Annual average groundwater depletion in the aquifer has been estimated at 5.18 billion cubic meters (Gm3) (4.2 million acre‐feet) in 1981–2000. However, since 2000, annual groundwater depletion has increased abruptly to 8 Gm3 (2001–2008). In recent years, multi‐state efforts have been initiated to improve the Mississippi Embayment aquifer sustainability. One management strategy of interest for preserving groundwater resources is managed aquifer recharge (MAR). In this study, we evaluate the impact of different MAR scenarios on land and water use decisions and the overall groundwater system using an economic model able to assess profitability of crop and land use decisions coupled to the Mississippi Embayment Regional Aquifer Study (MERAS) hydrogeologic model. We run the coupled model for 60 years by considering the hydrologic conditions from the MERAS model for the years 2002–2007 and repeating them 10 times. We find MAR is not economically attractive when the water cost is greater than $0.05/m3. Groundwater storage is unlikely to improve when relying solely on MAR as groundwater management strategy but rather should be implemented jointly with other groundwater conservation policies.

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Section: Maximization Of the Objective Function (Equationmentioning

confidence: 99%