Foreword
Introduction
1 Scope
2 Terms and definitions
3 General
4 Monitoring objectives
5 Design
5.1 General
5.2 Conceptual model
5.2.1 General
5.2.2 Rock strength
5.2.3 Depth
5.2.4 Hydrogeological considerations
5.3 Drilling method and installation size
5.3.1 General
5.3.2 Influence of geology on drilling technique
selection
5.3.3 The influence of depth
5.3.4 Borehole diameter
5.4 Installation design
5.4.1 Monitoring point installation
5.4.2 Locating response zone
5.4.3 Multi-level monitoring
5.5 Construction material selection
5.5.1 General
5.5.2 Casing materials
5.5.3 Filter packs
5.5.4 Screen selection
5.5.5 Sealing and backfilling the borehole
5.6 Headworks
5.7 Surface environment
6 Construction phase
6.1 General
6.2 Record keeping
6.3 Borehole drilling practice
6.3.1 General
6.3.2 Cleanliness
6.3.3 Use of lubricants
6.3.4 Waste collection and disposal
6.4 Installation practice
6.4.1 General
6.4.2 Well screen and casing
6.4.3 Filter pack
6.4.4 Bentonite seal
6.4.5 Grout
6.4.6 Headworks
6.5 Borehole development
7 Post construction activities
7.1 Routine inspections and maintenance
7.2 Rehabilitation
8 Safety precautions
9 Quality assurance/quality control
Annex A (informative) - Common drilling techniques used
in GQMP installation
Annex B (informative) - Headwork completion design examples
Bibliography