FILE - Mike Schmitt, project manager for the New York State Department of Environmental Protection, explains the design and construction of a 2.5-mile bypass tunnel for the Delaware Aqueduct in Marlboro, N.Y., on May 16, 2018. A long-planned temporary shutdown of the leaking aqueduct that supplies about half of New York City's drinking water will be pushed back a year, giving officials more time to prepare for the months-long closure. (AP Photo/Julie Jacobson, File)