PurposeSince the early 1990s, Brazil has adopted an experimental approach to environmental management. Its reforms continue to this day and have produced robust water-management policies. This article reveals the different positions, the power structures involved, and the result of the disputes and agreements concerning the social construction of legitimate environmental behaviour in jeans manufacturing.Design/methodology/approachComparative case study. Data collection for this research started in 2017 and ended in 2020. The data were gathered by concentrating on a few cases in two clusters. The author visited public agencies, trade associations, and firms of all sizes and levels of specialization in the industry and conducted semi-structured interviews with them. The intention was to acquire systemic and deep knowledge of the local industry.FindingsThe article's findings demonstrate a divergence in typologies that reflects the ecological limits in the use of natural resources, law-enforcement policies, and firms' legal status. The article extends our understanding of the ability of organizations to respond to institutional pressures to become sustainable. This study's findings provide insights for policy design in times of increasingly catastrophic pollution in regions that are immersed in global competition.Research limitations/implicationsThe study focuses only on two industrial textile clusters in Brazil, which may not be representative of the wider industry in the country or in other regions. The findings may not be generalizable to other industries or locations with different ecological limits, legal frameworks, and firm structures.Practical implicationsThe article's practical implications include the need for tailored regulatory frameworks, effective law enforcement policies, promoting a culture of environmental responsibility among businesses, and collaboration among stakeholders in promoting sustainability. Policymakers, regulators, and businesses in industrial textile clusters in Brazil and other regions facing similar ecological and regulatory challenges can use these insights to develop more effective policies and practices that balance economic growth with environmental sustainability.Social implicationsState actors emerge as the most important stakeholder group in forging the upgrading of water-management systems and technology. The optimal solution to the problem is cross-institutional and multilevel collaboration and coalitions between the different authorities and organizations involved who need to pay due attention to the relevant ecological limits and social needs. Only when this multilevel collaboration is achieved and maintained will the state's agents be able to collaborate with industrial actors and society at large.Originality/valueThe article examines the various factors that influence water usage and analyses the dynamics of change in two distinct locations in an emerging market. It demonstrates that, despite the existence of the same regulatory framework in both locations, different outcomes can arise due to the construction of diverse coalitions between social actors.Peer reviewThe peer review history for this article is available at: https://publons.com/publon/10.1108/IJSE-03-2023-0154