 | the construction of new drillings is forbidden |
 | the construction of new drillings is not recommended and critical. An environmental impact assessment is probably demanded and the project risks not to be authorized |
 | an environmental impact assessment is probably demanded if the concerned aquifer is already operated nearby so that the cumulative effect of the extractions can be evaluated |
 | a preliminary verification of the incidences of the new project has to be done to determine if an environmental impact assessment has to be done |