The state-backed EXPO 2027 project in Surčin has come under renewed public compliance scrutiny after officials said the site will proceed without a dedicated wastewater treatment facility. Nikola Jovanović, director of the Center for Local Self-Government, said the exchange of information with project leadership is essential for a development valued at several billion euros. The concern centers on how sewage generated by pavilions, a stadium, and planned residential and business units will be handled once construction is complete.
Public inquiries highlight a gap in sewage infrastructure
Jovanović said EXPO 2027 confirmed the Center’s earlier concerns that the Surčin location will rely only on primary sewage infrastructure. According to the statement, the system would connect to the city network rather than include on-site wastewater treatment. He further stated that wastewater would be discharged into rivers flowing through Belgrade.
This configuration shifts environmental risk from treatment performance to downstream receiving waters, making operational oversight and reporting particularly important for utilities and infrastructure operators. In practice, it also raises questions about whether the project’s environmental management plan adequately addresses water protection requirements during both construction and operation.
Budget allocation questioned amid water-source risk concerns
Jovanović described the absence of wastewater treatment as a major oversight, arguing that no treatment capacity was planned despite the multi-billion-euro budget. He said this omission could pose risks to water sources in the Surčin area. Publicly, he asked who is responsible for excluding wastewater treatment from a stated €2.5 billion budget.
He added that wastewater treatment would have required at most 0.5 percent of the total budget, framing the issue as a compliance-relevant engineering decision rather than a marginal cost item. For regulators and contractors, such claims typically translate into heightened expectations for documentation on design assumptions, environmental impact assessments, and permitting conditions tied to water quality protection.
Compliance implications for utilities and project operators
With wastewater routed into rivers through Belgrade rather than treated at the EXPO site, the operational responsibility for effluent quality becomes closely linked to city-system capacity and performance. That increases the need for clear monitoring arrangements covering collection reliability, hydraulic loading, and reporting of discharges that can affect receiving waters.
The situation also underscores how large mixed-use infrastructure—combining event facilities with residential and commercial development—can create cumulative pressure on municipal utilities. If dedicated treatment is not included within the project boundary, regulators typically expect stronger coordination mechanisms between developers, engineering contractors, and utility operators to ensure environmental controls remain effective over time.
Broader regional oversight focus
Across Southeast Europe, water protection requirements are increasingly treated as an operational compliance matter supported by permitting, monitoring, and enforcement-ready reporting. In this case, public concerns around wastewater handling at EXPO 2027 point to a need for transparent documentation of how sewage impacts will be managed when construction transitions into day-to-day operations.
Overall, the disclosed plan—primary sewage infrastructure connected to the city system with wastewater discharged into Belgrade-area rivers—raises immediate questions about environmental safeguards for water sources and about who holds responsibility for ensuring compliance outcomes once the project becomes operational.