We wish to cross-reference data contained in the results from the national Insee survey on industries and retail. By doing so we aim to reinforce data reliability on the issue of waste generated by economic activity (“déchets d’activités économiques –DAE-“). This in the optic of a future regional waste management and prevention plan, and in the scope of setting up reginal strategies in favor of a circular economy, we need to gain knowledge on DAE flows at an infra scale of an EPCI type.