The document summarizes Atlantis, an ethical and environmental company that provides sustainable water management solutions using modular underground tanks. It captures stormwater through ballast between rail tracks and releases it through a linked "chain of ponds" system. This reduces peak flows into local waterways and maintains environmental flows. Atlantis tanks provide benefits like unlimited storage, water purification, and flood mitigation while reusing space. They are strong, keep water cool and dark without stagnation. Atlantis offers solutions for rainwater harvesting, infiltration, detention, permeable paving and more.