Water well construction is a central part of mainstream hydrogeology, although these days, possibly more professional hydrogeologists are involved in contamination studies and impact assessments rather than the nitty-gritty of designing new water wells and overseeing their construction and testing. Although most hydrogeological textbooks include a chapter (or occasionally two) on water well construction, the main reference work has long been the second edition of Groundwater and Wells by Driscoll (1986). Driscoll’s book is a large tome extending to over 1, 000 pages with comprehensive coverage of the subject including many helpful lists and tables. However, it has a bias towards American practice, unconsolidated aquifers and the use of Johnson Well Screens, and after 24 years is becoming somewhat dated. Drilling techniques have developed significantly over the past couple of decades and the use of plastics and other modern materials for casings, screens and rising mains has increased very significantly. In addition, on an international basis there is extensive use of hard rock aquifers that include the many thousands of small water supplies derived from poorly permeable fractured aquifers. The subject book, Water Wells and Boreholes (Misstear et al. 2006) describes modern practice, presents the subject from a hydrogeologist’s view point and includes examples from several countries, and it is both timely and welcome. Lewis Clark published The Field Guide to Water Wells and Boreholes (Clark 1988) in the Geological Society of London’s Professional Handbook Series. This new book (Misstear et al. 2006) is basically an updated and greatly expanded edition of Lewis’ original with much of the new material provided by Bruce Misstear and David Banks after Lewis’ untimely death soon after work on the manuscript had started. This expansion means that the book has grown from a specialist handbook to a full-scale hydrogeological textbook, albeit still focussed on the design, construction and operation of water wells. An obvious downside is that it is now too big to fit in your pocket but that is more than fully compensated by the additional information it provides. The structure of the book broadly follows the process of water well design and construction as it would be undertaken by a hydrogeologist. Like all hydrogeological textbooks, the Introduction (Chapter 1) contains material that sets the scene covering, for example, definitions of aquifers and aquitards and providing equations that describe groundwater flow. Chapter 2 then shows how this understanding is put into practice to identify a suitable site to drill a successful well, starting with a desk study and proceeding through a field reconnaissance to more extensive investigations. The techniques discussed include geophysical surveys, exploratory drilling, groundwater resource assessment including water quality, and spotting potential pollution problems. Happily the book does not include dowsing (also know as ‘water witching’), all too frequently the bane of hydrogeologists working in this field. Water well design is described in Chapters 3 and 4, covering everything from hand dug wells and augured tube wells to casing selection and the design of a gravel pack, and choosing the right screen-slot size. There is also a useful discussion on pump selection. Construction methods are covered in Chapter 5 which includes all the main techniques, including down-the-hole hammer, probably the most commonly used drilling method in current use in the UK for small-to-medium diameter boreholes in consolidated aquifers. This drilling system allows most small-scale wells (up to say, 200 mm diameter and 100 m or so deep) to be fully constructed in about three days, a very significant factor in the economics of water well construction. Effective grouting that seals the borehole casing into the rock is essential to prevent the ingress of potentially contaminated surface water and/or shallow groundwater. The book provides a detailed description of grouting Received: 9 January 2011 /Accepted: 21 March 2011 Published online: 19 April 2011
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