operated from 1896 to 1936. The city's trolley system barn also operated on Wall Street. Airports Norwalk is within reasonable distance of 11 airports - four general aviation, two regional, and five international. Infrastructure Utilities Electric power and natural gas in most of Norwalk are provided by Eversource Energy. The First Taxing District provides water to the Third, Fourth and Fifth Taxing Districts. The Second Taxing District serves sections of South Norwalk, East Norwalk, West Norwalk, Rowayton and Silvermine. and also owns and operates South Norwalk Electric and Water. The Third Taxing District provides electric power for East Norwalk. The districts purchase wholesale power and arrange for its delivery to, and distribution within, their respective districts. Power lines and meters in East Norwalk, South Norwalk, and parts of Rowayton are maintained by the districts. Both the second (SNEW) and third (TTD) district electric departments belong to the six member Connecticut Municipal Electric Energy Cooperative which pools their wholesale power purchasing to obtain lower rates for their customers. Connecticut Light and Power (now Eversource Energy) operated a power plant, Norwalk Harbor Station on Manresa Island, from 1960 to 1999 when it was acquired by NRG Energy, which then began its deactivation in 2013. In 2004 the Third Taxing District installed 3 diesel powered generators at the Norden complex on Norden Place that were initially licensed only for emergency power supply. By summer 2008 the generators, with a combined capacity of 6 Megawatts, had been upgraded to allow licensed operation as regular power providers for the grid (not just emergency power). In 2007 and 2008 the construction of the Middletown-Norwalk transmission line disrupted traffic along the Boston Post Road, but the completion of the line is hoped to help provide additional power to lower Fairfield County. In addition a high-voltage undersea line runs from Manressa Island to Long Island to help provide electric power to Long Island Power Authority customers. In 2008 the city government of Norwalk started initial investigations of whether the city might resume generating power for sale to electricity customers in the city. Emergency services Norwalk Police Department serves as the city's police department, and Norwalk Fire Department serves Norwalk's fire protection district. Norwalk is served 24/7 by Norwalk Hospital and Norwalk Hospital EMS, a 911 paramedic service. The service consists of hospital-based paramedics and EMT-Is who serve Norwalk as well as New Canaan, Wilton, Weston, and Westport. Notable