This paper considers the social representation of an incinerator plant operating for more than 30 years in a medium-sized city in Italy. A survey was carried out with a representative sample of an Italian town, a community that was not generally hostile to it. On the basis of self-efficacy and trust in institutions, and by applying cluster analyses, we obtain evidence for four distinct groups labelled as Fatalists, Collaboratives, Activists ,and 2 Delegants. The four groups express systematic variations in social representation. We discuss the theoretical and practical impacts of these results.