The Water Services Corporation (WSC) has terminated its contract with Superlit for the supply of GRP pipes in the Pembroke–Ta’ Qali Tunnel project. The decision was taken after rigorous testing revealed that the products failed to meet the required quality standards.
Independent Testing Abroad
As part of WSC’s strict quality assurance procedures, sections of the supplied pipes were sent abroad for independent testing. This step followed on-site hydrostatic tests, carried out in the presence of the contractor and the international certification body Kiwa (NL. B.V.).
Test Results and Failures
Both local and overseas tests confirmed serious failures at pressure levels well below the required thresholds. Therefore, the supplied GRP pipes could not be considered safe or reliable for this national water project.

WSC Response and Payment Issues
In line with the signed contract, WSC immediately requested full pipe replacement. However, this request was rejected by the supplier.
Proposals for patchwork or partial fixes were also declined by WSC, since they did not meet the required standards. Importantly, the Corporation confirmed that no payments were made for the defective pipes.
Furthermore, WSC has formally requested that the supplier cover all costs related to replacement. The Corporation will also take every necessary action to safeguard its interests.
Next Steps
WSC will now issue a new tender process. This will ensure that the project continues using materials that fully meet specifications.
In addition, the Corporation has activated its contingency plan to make sure the project moves forward without compromising quality, value for money, or timelines.
About the Pembroke–Ta’ Qali Tunnel
The Pembroke–Ta’ Qali Tunnel is a major national investment, co-financed by the European Union. It aims to:
strengthen Malta’s water supply infrastructure
improve water quality nationwide
reduce long-term operational costs
Through its stance on quality and contractual compliance, WSC continues to protect the public interest. Moreover, it is ensuring that Malta’s water infrastructure is built to the highest standards.
Further updates will be provided as the retendering process advances.