NYC receives several hundred billion gallons of rainwater each year (source: USGS). That's just counting the ~30% of the rain that actually makes it to its stre

NYC receives several hundred billion gallons of rainwater each year (source: USGS). That's just counting the ~30% of the rain that actually makes it to its streams and aquifers, discounting the portion lost to evaporation and transpiration. If it's not a scarce resource, they can waste 25 gallons a minute running some free sprinklers.