Surveillance of drinking-water quality: assessing the degree of implementation of actions

This study aims to evaluate the Drinking-Water Quality Surveillance Programme (DWQS) implemented in Colombia. The study was conducted using methodology for assessing the implementation, integrating a normative assessment and evaluation research. For this assessment, Delphi methodology was developed that allowed the definition of an evaluation matrix, composed of 14 attributes and 62 criteria, as well as the building of a score system and parameters that permitted the evaluation of each of the defined criteria. Data collection involved conducting semi-structured interviews with institutional actors from 39 territorial units. The system evaluation showed that the DWQS in Colombia is partially implemented, with different stages of implementation in territorial units. The system showed a strengthening in actions related to data production on the aspect for improving water quality and DWQS actions from the standpoint of health promotion. However, some conceptual limitations were identified in terms of legislation thereby affecting the fulfilment of the universality of DWQS actions.

Surveillance; Water quality; Delphi Methodology; Evaluation; Health planning