Monitoring, Maintenance and Rehabilitation of Water Supply Boreholes

This report provides best practice guidance on borehole monitoring, maintenance, rehabilitation and design and construction to optimise water supply from groundwater sources. In particular it encourages a co-ordinated approach to borehole managements by relating borehole performance to the condition of the abstraction system and to physical, chemical and microbial processes. An understanding of these processes helps borehole operators to decide what, where and how to monitor, how to interpret results, and which maintenance or rehabilitation strategy to adopt. The report concludes with a review of the main principles and guidance on the development of a monitoring and maintenance strategy, and recommendations for further research are made. The publication includes a substantial bibliography and two appecdinces which give detailed information on specific capacity and screen entrance velocity.