No engineering details were overlooked, for example, Stanford Development Company Ltd. used a 'Total Station surveying method', which is accurate to within centimeters. This methodology allowed accurate placement so that existing natural corals would not be damaged by the placement of the Reef Balls. A special mark had to be established called the 'biological tide line', which is the water level at which marine growth stops. The Reef Balls were made of different sizes so that the top of each Reef Ball would be exactly at the 'biological tide line.' This makes for the most effective submerged breakwater, and also maximizes the biological growing surfaces for the new reef.
