A proposed methodology for assessing the economic needs of safeguard zones protecting groundwater intended for human consumption within the context of the European Water Framework Directive

This paper describes the gross domestic product and hydrological environment service method for assessing the socio-economic consequences of implementing necessary measures for safeguarding the quality of groundwater for human consumption and eliminating the risk of pollution. This method assesses the positive and negative impacts of designations of protected areas. Economic assets and social goods are the two integrated variables used in analysing the method. The first includes economic impacts on the local gross domestic product of defining protected areas, and the second considers the benefits of this designation in the conservation of water resources, assigning a monetary value to the preserved resources. In addition, tools have been incorporated, such as payment for hydrological services and generation of permissible activities, which reduce negative social impacts through positive economic impacts. These tools can only be used when compliance with conservation requirements for protected areas is demonstrated. The conclusions of this study include an application of the proposed methodology and provide essential and specific assessments that show that this methodology fulfils the requirements of the European Water Framework Directive requirements and that it is an effective tool in the implementation and development of strategies for hydrological planning processes.