Critically Assessment of Groundwater Quality Based on WQI and Its Vulnerability to Saltwater Intrusion in a Coastal City, Iran

2021 ◽  
pp. 126-138
Author(s):  
Salman Tavassoli ◽  
Farzad Mohammadi
Keyword(s):  
Groundwater Quality ◽  
Saltwater Intrusion ◽  
Coastal City

scholarly journals Coupled effect of seawater intrusion on groundwater quality: study of South-West zone of Surat city

2021 ◽  
Author(s):  
Ankit N. Chaudhari ◽  
Darshan J. Mehta ◽  
Neeraj D. Sharma
Keyword(s):  
Groundwater Quality ◽  
Seawater Intrusion ◽  
Saltwater Intrusion ◽  
Three Dimensional ◽  
The South ◽  
Study Region ◽  
Weighted Arithmetic ◽  
South West ◽  
The Status ◽  
Freshwater Aquifers

Abstract Groundwater quality is a major problem for humanity since it is closely related to human health. The flow of seawater into freshwater aquifers is known as saltwater intrusion, and it can lead to groundwater quality contamination, including drinking water. Due to the extremely severe hydraulic interface between groundwater and seawater, saltwater intrusion can happen naturally in coastal aquifers. The aim of the study is to examine the status of seawater intrusion within the study region of the South-West zone of Surat city, Gujarat. The present study evaluates Groundwater Quality Index using a weighted arithmetic method including various chemical ions. The South-West zone of Surat city is located along the coast; seawater infiltration has a significant impact on the groundwater in the state. The conceptual model will be developed and analyzed using MODFLOW to analyze the effects of seawater intrusion analysis. The model domain is characterized by three hydro-stratographic layers and covers an area of approximately 110 km2 in a 400 m × 400 m grid size. An analytical study with MODFLOW would be carried out for three-dimensional groundwater flows with species of solute transport. This study would help profile the study area regarding Groundwater quality.

scholarly journals Sanitation Practices and Groundwater Quality in a Precarious Neighbourhood of a Coastal City in Central Africa

2021 ◽  
Vol 15 (1) ◽  
pp. 9-19
Author(s):  
Onana Fils Mamer ◽  
Tamsa Arfao Anto ◽  
Jiofack Charles Jo ◽  
Ngaldeu Noupoue Al ◽  
TAMATCHO KWEYANG Blandine P ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Central Africa ◽  
Coastal City

scholarly journals Critical stress scenarios for a coastal aquifer in southeastern Italy

2011 ◽  
Vol 11 (5) ◽  
pp. 1381-1393 ◽  
Author(s):  
C. Cherubini ◽  
N. Pastore
Keyword(s):  
Groundwater Quality ◽  
Seawater Intrusion ◽  
Critical Stress ◽  
Saltwater Intrusion ◽  
Management Strategies ◽  
Hydrologic Model ◽  
Shallow Aquifer ◽  
Deep Aquifer ◽  
Future Developments

Abstract. Over the last years the sustainable management of coastal water resources has become strategic, especially in southern Salento Peninsula (Apulia), where mal-performing management strategies adopted, together with the vulnerability of the hydrogeological system, have given rise to the deterioration of groundwater quality due to saltwater intrusion. In the study area there is the presence of multilevel shallow aquifer and a deep aquifer that interact by means of faults. The geological system is highly vulnerable to seawater intrusion so there is the need to adopt management strategies to avoid seawater intrusion phenomena. Nevertheless there is a lack of studies that analyze the methodology for the correct exploitation if the water resource in order to avoid further intrusion phenomena. This paper combines a density-driven, flow numerical model (Seawat v.4) with a fault conceptual and hydrologic model to simulate saltwater intrusion phenomenon in the deep as well as in the shallow aquifer of the Salento area. By means of the individuation of an indicator parameter of groundwater quality, it has been possible to simulate different scenarios of exploitation and therefore to define critical stress scenarios for both aquifers. The results show that the deep aquifer is more vulnerable than the shallow one, which means that in the former, in order not to reach conditions of contamination, a lower density of wells is necessary than in the latter. The reduction of well density coupled with the artificial recharge of freshwater into the aquifer may be proposed as a solution strategy to protect the aquifer. Therefore, future developments of the present study will be represented by the simulation of different scenarios of recharging to inhibit the saltwater intrusion front further inland. The proposed methodology and its future developments can represent an empirical tool to provide preliminary guidelines for long-term groundwater management in coastal aquifers.

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