The underwater Aliveri pipeline is part of the natural gas supply network of Euboea. The pipeline crosses the south Euboea gulf from Attiki (approximately 5 km south of Ag. Apostoloi) to Aliveri. The underwater high pressure pipeline will be 20 inches in diameter and will be 14 km long.

Drilling of 3 off-shore exploratory boreholes in Ag. Apostoloi, with the corresponding laboratory tests, preparation of a factual and interpretive report and liquefaction risk assessment. Also physical, chemical and mechanical characteristics laboratory tests were carried out on sea bed samples retrieved by drop coring along the pipeline route by AKTI ENGINEERING.