From a chemical polluting and contaminating complex between the 1950s and 1990s, to the touristic reconstruction of wetlands once heavily impacted by toxic waste discharges and now beautifully called Bio Ria, the history of Estarreja is being rewritten. What remains from the industrial memory of the locality? How do present-day views and voices speak of the city's stories and everyday life? What is the awareness of potential risks: does it exist or not? From the factories to the magnificent flora, from the old workers to the generations of the future and some environmental awareness projects organised by the neighbouring university of Aveiro (Portugal), this article aims to present a context of undesired toxic heritage, but constitutive of the social and industrial history of this place. Several remediation programs have already taken place; waste discharges are now integrated into the landscape. Can toxic material be heritage? This chapter will offer a subjective and fragmented portrait of the situation as it is experienced and perceived by the population today, while exploring the ideas of "staying with the trouble" (Harraway 2016) or habituation.