Designed to be built in Boston’s innovation district on greyfield and brownfield sites, ResilienCity will provide residential and office space for 300,000 people. A series of new canals will return 100 acres to the sea and provide requisite water for roof gardens and living walls. This design also calls for an additional 15 million square feet of carbon-sucking green space.
Additionally, granite seawalls will be replaced with constructed wetlands that allow for aquifer recharge. The city’s diverse energy portfolio will be generated via photovoltaics, biogas, and microCHP generation programs. With a constant view towards both ecological and personal health, vehicular traffic will be limited and trucks will be restricted to an “eco-industrial” zone. Finally, every building’s carbon footprint will be displayed for potential residents to see.
Via Arch Daily
For reference: A 20M GAL capacity would supply over 36,000 US residents (at 550 GAL/Person - highest in the world in use). That a figure in addition to individual on-site water-saving & storage strategies. As far as mosquito breeding grounds - that is not how the system would work (a stagnant and standing vessel) - its a municipal water "reservoir" and tidal rise holding tank/desalinization facility (using the tidal energy as the power source for the processing)
20 million gallons is not a lot. An inch of rain over a hundred acres is 2.7 million gallons. I doubt the containment potential of the cistern. Better off simply having rain barrels at individual houses. That ensures private rights to the water that falls on the persons property. This isn't a park pond so people will tend to ignore it. What potential is there for mosquito breeding grounds in collected dirty water.