Saltwater intrusion in coastal regions of North America

Barlow, Paul M.; Reichard, Eric G.

doi:10.1007/s10040-009-0514-3

Cited by 470 publications

(187 citation statements)

References 23 publications

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“…More and more countries should develop and design new control methods, improved monitoring schemes and simple numerical models for assessment. Techniques so developed, should be practically usable and less costly (Barlow and Reichard, 2010) [16].…”

Section: Interpretation Of Simulation Resultsmentioning

confidence: 99%

Sea -Water Intrusion Studies For Coastal Aquifers: Some Points To Ponder

Soni¹

2012

TOHYDJ

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Abstract:Researchers all over the world have contributed various scientific studies to understand coastal aquifers characteristics and to study sea water intrusions phenomenon. While evaluating the impact of sea water on ground water system near the coast some pertinent points haunt the scientific community. In this technical contribution authors has raised some burning issues and points. Though, such issues and dilemmas were emerged in the analysis and discussions in past but the error and its magnitude, reliability of analyzed data, volume and source of authenticity of input field data, practical acceptance of solutions suggested etc. are some points that need introspection. Precise and better scientific analysis and solutions may be thought for future research directions and focus can be made on some of the points and issues raised. Based on interdisciplinary approaches accuracy in "evaluation plan and procedure" can be achieved scientifically and the challenges of uncertainty of sea-water intrusion assessment can be dealt in totality. Predictions required should be done in a realistic timeframe in respect of any particular geological domain, country or specific area. In brief, this original and must to read article encompasses technical material for the entire scientific community.

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Section: Interpretation Of Simulation Resultsmentioning

confidence: 99%

Sea -Water Intrusion Studies For Coastal Aquifers: Some Points To Ponder

Soni¹

2012

TOHYDJ

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“…Coastal regions such as Queensland in Australia, Florida in the United States, the southern Atlantic coastline of Spain, and Lebanon are among the most highly visible and notable cases where saltwater has intruded into coastal aquifers. Other problem areas in the United States include Cape May County in New Jersey and in Monterey and Orange Counties in California (Barlow and Reichard 2010). Similarly, in the western State of Sonora in Mexico, seawater has intruded approximately 20-25 km inland, forcing the closure of irrigation wells.…”

Section: Aquifer Salinizationmentioning

confidence: 99%

The International Scale of the Groundwater Issue

Fienen

Arshad

2016

Integrated Groundwater Management

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Throughout history, and throughout the world, groundwater has been a major source of water for sustaining human life. Use of this resource has increased dramatically over the last century. In many areas of the world, the balance between human and ecosystem needs is difficult to maintain. Understanding the international scale of the groundwater issue requires metrics and analysis at a commensurate scale. Advances in remote sensing supplement older traditional direct measurement methods for understanding the magnitude of depletion, and all measurements motivate the need for common data standards to collect and share information. In addition to metrics of groundwater availability, four key international groundwater issues are depletion of water, degradation of water quality, the water-energy nexus, and transboundary water conflicts. This chapter is devoted to introducing these issues, which are also discussed in more detail in later chapters.

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“…Chloride concentrations are increasing in coastal aquifers as a result of groundwater pumping in many areas of California (Edwards et al 2009;Hanson 2003;Reichard et al 2003;Izbicki 1996) and elsewhere (Tularam and Krishna 2009;Barlow and Reichard 2010). As early as 1905 Mendenhall (1905) recognized that increasing water levels would slow or stop seawater intrusion.…”

Section: Introductionmentioning

confidence: 99%

Sources of high-chloride water and managed aquifer recharge in an alluvial aquifer in California, USA

2015

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As a result of pumping in excess of recharge, water levels in alluvial aquifers within the Eastern San Joaquin Groundwater Subbasin, 130 km east of San Francisco (California, USA), declined below sea level in the early 1950s and have remained so to the present. Chloride concentrations in some wells increased during that time and exceeded the US Environmental Protection Agency's secondary maximum contaminant level of 250 mg/L, resulting in removal of some wells from service. Sources of high-chloride water include irrigation return in 16 % of sampled wells and water from delta sediments and deeper groundwater in 50 % of sampled wells. Chloride concentrations resulting from irrigation return commonly did not exceed 100 mg/L, although nitrate concentrations were as high as 25 mg/L as nitrogen. Chloride concentrations ranged from less than 100-2,050 mg/L in wells affected by water from delta sediments and deeper groundwater. Sequential electromagnetic logs show movement of highchloride water from delta sediments to pumping wells through permeable interconnected aquifer layers. δD and δ 18O data show most groundwater originated as recharge along the front of the Sierra Nevada, but tritium and carbon-14 data suggest recharge rates in this area are low and have decreased over recent geologic time. Managed aquifer recharge at two sites show differences in water-level responses to recharge and in the physical movement of recharged water with depth related to subsurface geology. Well-bore flow logs also show rapid movement of water from recharge sites through permeable interconnected aquifer layers to pumping wells.

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Saltwater intrusion in coastal regions of North America

Cited by 470 publications

References 23 publications

Sea -Water Intrusion Studies For Coastal Aquifers: Some Points To Ponder

Sea -Water Intrusion Studies For Coastal Aquifers: Some Points To Ponder

The International Scale of the Groundwater Issue

Sources of high-chloride water and managed aquifer recharge in an alluvial aquifer in California, USA

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