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Thomas et al., (2024) - Advances in groundwater recharge during construction dewatering

ABSTRACT: Abstraction of groundwater for consumptive use, such as for drinking water, agriculture, and industrial
purposes, regularly requires the granting of a permanent abstraction licence from environmental regulatory bodies.
Temporary abstraction of groundwater required for construction, however, has not historically required an abstraction
licence. More recently, due to the conservation of groundwater in Europe now being a major challenge, it is becoming more
common in European countries that licensing for the temporary abstraction of groundwater during construction dewatering,
known as groundwater control, is now required from the environmental regulators of each country. Due to this requirement
for licensing, the development of effective techniques for reducing the overall loss of groundwater has become more
important. In particular, such conservation techniques include increased use of artificial recharge of groundwater back into
the same strata from which it was abstracted. This paper presents three case studies describing a number of groundwater
abstraction and recharge systems implemented on major infrastructure construction projects in the United Kingdom.
RÉSUMÉ: Le captage d’eau souterraine à des fins de consommation, par exemple pour l’eau potable, l’agriculture et
l’industrie, nécessite régulièrement l’octroi d’un permis de prélèvement permanent auprès d’organismes de réglementation de
l’environnement. Toutefois, le prélèvement temporaire d’eau souterraine nécessaire à la construction n’a pas toujours
nécessité de permis de prélèvement. Plus récemment, en raison de la conservation des eaux souterraines en Europe qui est
maintenant un défi majeur, il est devenu de plus en plus courant dans les pays européens qu’une licence pour le prélèvement
temporaire d’eau souterraine pendant l’assèchement des constructions, connue sous le nom de contrôle des eaux souterraines,
soit désormais exigée des régulateurs environnementaux de chaque pays. En raison de cette exigence de licence, le
développement de techniques efficaces pour réduire la perte globale d’eau souterraine est devenu plus important. En
particulier, ces techniques de conservation comprennent l’utilisation accrue de la recharge artificielle des eaux souterraines
dans les mêmes strates d’où elles ont été extraites. Cet article présente trois études de cas décrivant un certain nombre de
systèmes de captage et de recharge des eaux souterraines mis en œuvre dans le cadre de grands projets de construction
d’infrastructures au Royaume-Uni.
Keywords: Groundwater control; water conservation; construction dewatering.

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