The lagoon water level is regulated on a seasonal basis to optimize flood control, recreation, aesthetics, and ecological benefits. During the winter the water level is lowered to provide a receiving basin for stormwater runoff as protection from lowland flooding. The summer water level provides optimal conditions for swimming, boating, and other recreational uses. The water level is controlled using the O’Neill Slough intake gates on the lagoon's south end and the Marina Lagoon Pump Station on the north end. The Pump Station's pumping capability, in combination with the winter operating level of 94.9 feet, provides the capacity for a 100-year storm event.