Sea‐water intrusion into ground‐water basins bordering the California coast and inland bays

Banks, Harvey O.; Richter, Raymond C.

doi:10.1029/tr034i004p00575

Cited by 10 publications

(6 citation statements)

References 3 publications

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“…Although initial costs are very high, the subsurface barrier method often a potential permanent solution to the seawater intrusion problem in narrow coastal groundwater basins with relatively shallow aquifers, Banks & Richter [2]. Todd [35] and Bruington [3] also noted that the subsurface barrier is a viable solution to the seawater intrusion problem Cons: This method has limited applicability for very shallow aquifers and is expensive initially.…”

Section: Prosmentioning

confidence: 99%

“…Except Gujarat and little part of Maharashtra the ingression of saline water is severe in the eastern coast in comparison to west coast. Field-based studies have been conducted by various researchers [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][18][19][20][23][24][25][26][27][30][31][32]34]. The nature and position of interface and delineation of fresh groundwater and saline groundwater bodies at the aquifer of Digha beach at Purba Midnapur was studied.…”

Section: Introductionmentioning

confidence: 99%

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Remedial Measures for Saline Water Ingression in Coastal Aquifers of South West Bengal in India

Maity¹,

Das²,

Das³

2018

MOJES

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Purba Midnapur, a coastal district of West Bengal in India, is under a serious threat concerning the deterioration of groundwater due to seawater encroachment. The upper soil horizon of Purba Midnapur consists of alternating deposits of clay and sand of marine origin. As with all marine deposits, rounded grains and high porosity are dominant characteristics. The coastal line upto 40 km wide tract is being contaminated due to the movement of saline water into aquifers of fresh water. Thus groundwater has become unfit for domestic uses and irrigation purpose. Due to extraction of groundwater, the water table is distorted like a cone of depression resulting in the associated risk like defunct well and making the abstraction uneconomical due to increased lift. Therefore immediate measures are required to control saline water ingression into the coastal aquifers. This paper suggests some measures for controlling saline water ingression in the area concern.

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Section: Prosmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Remedial Measures for Saline Water Ingression in Coastal Aquifers of South West Bengal in India

Maity¹,

Das²,

Das³

2018

MOJES

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“…Today sea-water intrusion is receiving significant attention in California because of the economic importance of the phenomenon in contaminating coastal water supplies. According to information collected by the Division of Water Resources of the State of California [BANKS, GLEASON, and RICHTER, 1950], over 90,000 acres of coastal lands have been contaminated by sea-water intrusion. These penetra tions have occurred in 13 distinct areas along the coast, and there is further danger in numerous other areas in the future.…”

mentioning

confidence: 99%

“…Lowering of artesian pressures by excessive pumping may permit saline water to enter an aquifer from upper unconfined zones through leaky casings of old, abandoned, or im properly sealed wells. Much of the intrusion problem in Santa Clara County, California, has beet traced to this method [BANKS, GLEASON, and RICHTER, 1950]. Similar damage can result froa improperly constructed gravel-packed wells in which the gravel packing extends beyond the aquifer being pumped and serves as a channel for admitting undesirable water [BANKS and LAWRENCS 1953].…”

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confidence: 99%

Sea‐water intrusion in coastal aquifers

Todd

1953

Eos Trans. AGU

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“…The direct threats of invasive saline water on groundwater led the geo-environmental and water resources engineers throughout the world to discover the some practical solutions to Control SWI. These include reduction of pumping rates, relocation of pumping wells, use of subsurface physical barriers, natural and artificial recharge, use a line of injection wells (pressure barrier) along the coast, pumping of saline water (abstraction barrier) along the seacoast and combination techniques ( Banks and Richter (1953), Bruington (1972), Todd (1974), Van Dam (1999) and Sherif and Hamza (2001)). In order to assess the efficiencies of these methods the simulation model should be linked with the optimization tools.…”

Section: Introductionmentioning

confidence: 99%

A surrogate model for simulation–optimization of aquifer systems subjected to seawater intrusion

Hussain

Javadi

Ahangar‐Asr

et al. 2015

Journal of Hydrology

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This study presents the application of Evolutionary Polynomial Regression (EPR) as pattern recognition system to predicate the numerical results of nonlinear and computationally complex aquifer system threatened by seawater intrusion (SWI). The developed EPR models are also linked with the multi objective genetic algorithm to test the efficiency of different arrangements of hydraulic barriers considered to control SWI. For this purpose the developed EPR model for each control scenario are trained and tested on the set of different pumping patterns as inputs and the corresponding set of numerically calculated outputs. The results are compared with those obtained by direct linking of the numerical simulation model with the optimization tool. These two strategies of the simulation-optimization (S/O) show excellent agreement on the obtained set of optimal solutions. The three combined management scenarios have been considered which involve the effects of both abstraction and recharge barriers simultaneously. Minimization of both the economic cost of management process and the salinity level in the aquifer are the two objective functions used for evaluating the cost efficiency of each management scenario studied. By considering the effects of the unsaturated zone, the subsurface pond is used to collect the water and to artificially recharge the aquifer in these scenarios. The main distinguish feature of EPR emerges in its application as metamodel in S/O process where it reduces the overall computational complexity significantly. The results also suggested that the application of cheap source of water such as the TWW and/or storm water instead of desalinated water coupled with continues abstraction water followed by its application for human consumption or irrigation after desalination as most cost effective method to control SWI. The effects of supplying these different external sources of recharge water and also the effects of different recovery ratios of desalination plant on the optimal results are also presented through sensitivity studies by using the developed methodology.

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Sea‐water intrusion into ground‐water basins bordering the California coast and inland bays

Cited by 10 publications

References 3 publications

Remedial Measures for Saline Water Ingression in Coastal Aquifers of South West Bengal in India

Remedial Measures for Saline Water Ingression in Coastal Aquifers of South West Bengal in India

Sea‐water intrusion in coastal aquifers

A surrogate model for simulation–optimization of aquifer systems subjected to seawater intrusion

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