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Aquifer Recharge: An Operational Drought‐Management Strategy in North London
Author(s) -
O'Shea M. J.,
Sage R.
Publication year - 1999
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1999.tb01076.x
Subject(s) - groundwater recharge , aquifer , hydrology (agriculture) , environmental science , water resources , groundwater , borehole , water resource management , abstraction , geology , geotechnical engineering , ecology , biology , philosophy , epistemology
The North London Artificial Recharge scheme, which comprises thirty‐seven wells and boreholes, is designed to boost resources during a drought. All sources discharge groundwater either to the Lee Valley reservoirs or the New River during the abstraction, which avoids the need for expensive on‐site water treatment and significantly enhances the cost effectiveness of the scheme. Fully treated drinking water provides the source of gravity‐fed artificial‐recharge water, via the normal distribution system. This paper describes the strategy which was introduced in 1997, in response to a deteriorating water‐resources situation. Abstraction occurred over a period of four months prior to the onset of autumnal winter rainfall. Daily abstraction rates peaked at 150 Ml/d, and a total of about 10 700 Ml were withdrawn.