A1.1 Introduction

Effective management of drinking water quality requires appropriate attention to system analysis and system management. The objectives are to increase understanding of:

• the entire water supply system from catchment to consumer

• the hazards, sources and events that can compromise drinking water quality

• the preventive measures needed to effectively control hazards, including the application of multiple barriers and the establishment of critical control points to reduce exposure to hazards.

Figure A1.1 provides a suggested roadmap to assist in the application of these aspects of the Framework. Further guidance on implementing these aspects is offered in the following text.

Figure A1.1 Application of Framework elements 2 and 3