Owners of Brombil Reservoir are warning that the site may need to be decommissioned if public sector support is not secured, citing significant safety compliance costs and a lack of response from local authorities. Brombil Reservoir Ltd, which took ownership in 2024, has invested in structural surveys, engineering assessments, landscaping, and waste clearance.
However, the company stated that compliance requirements from Natural Resources Wales (NRW) for high-risk dams have increased substantially, necessitating tens of thousands of pounds in ongoing safety investment. Matthew O'Brien of NRW's reservoir safety group emphasized that under the Reservoirs Act 1975, owners are responsible for ensuring their reservoirs are properly maintained and managed to reduce the risk of downstream flooding. Regulated reservoir owners pay an annual fee of £276 towards NRW's regulatory costs.
Brombil Reservoir Ltd claims to have repeatedly sought financial and preservation support from Neath Port Talbot council and local politicians but received no response. The company expressed a desire to collaborate with the council, NRW, and political representatives to maintain a safe and biodiverse site.
The owners warned that without public sector assistance or a partnership agreement, decommissioning the reservoir would be the likely outcome. This action would eliminate the area's primary flood defense and destroy a vital ecological habitat. They are calling for local authorities to engage in discussions to find a sustainable, shared path forward.
The council stated that it has provided advice where appropriate, noting that decisions regarding operation and investment are the owner's responsibility as the site is privately owned. The council also indicated that any future arrangements should ensure responsible visitor management and avoid undue pressure on local communities, adding that they remain open to constructive dialogue with the owner.
Brombil Reservoir gained popularity during the COVID-19 pandemic, with visitors flocking to the site, described as a "blue lagoon," for its turquoise waters. The influx of visitors has also led to issues with litter and pressure on local resources. IMAGE3: Brombil reservoir in the foothills of Margam with blue waters surrounded by green forest and steep hills