The water supply system for NYC is composed of elements from various times dating back 150 years or more. In some areas, the tunnels are over 1,000 feet below the surface. In some areas, the pipelines are partially exposed on the surface. The water supply is now over 1.1 billion gallons per day to the greater metro area. There is a leak in one of the main tunnels that exceeds a million gallons per day. Plans are in the works to put together a redundant backup system and then take the old tunnel line out of service and seal the cracks. Also there are a number of water treatment processes planned to be installed in the system to ensure the quality of the water.

Fortunately, there's plenty of water in the drainages to meet demands. Those poor blokes in Brisbane are going to be drinking "Recycled" water soon. You should hear the rantings of the libs there about that!!!