apparatuses (three Oshkosh Striker 1500s), two of which are in service full-time. The ARFF Crews only respond to aircraft emergencies. All structure-related fire and rescue calls are deferred to the local fire departments. The Purchase Fire Department, for example, handles all structure calls on the southern part of the airfield, the Armonk Fire Department handles calls on the northern part and the Rye Brook/Port Chester Fire Department handle all calls on the east end, including the main terminal. EMS calls are handled by Port Chester-Rye-Rye Brook EMS, Harrison EMS and Armonk Fire/EMS depending on location of call. In 2010, the airport had 191,017 total aircraft operations, an average of 523 per day: 23% commercial aviation, 48% heavy general aviation, and 29% light general aviation. 316 aircraft, including helicopters, are based out of this airport. An aircraft must have a maximum gross weight of 120,000 pounds or less, or permission from the manager, to land at the airport. Terminal Westchester County Airport has one small, three-level terminal with six gates, of which only four can be used simultaneously because only four aircraft can be scheduled to use the terminal's ramp at any given time. The $35 million terminal was built in 1995 and designed by Lothrop Associates. Gates A, B, C, and F have jetways. The terminal also has a luggage carousel, a baggage reclaim office and two Transportation Security Administration (TSA) screening lanes. Passenger amenities include a gift shop, departure lounge, and food concessions such as a Dunkin' Donuts. In November 2015, the airport began a $30 million construction project to expand the terminal and ramp areas. The project will expand the terminal by 20% and include additional check-in, screening and passenger waiting areas. The expansion will also include the addition of four new jet bridges. A separate terminal with "lodge-like ambiance" to serve passengers of private jets opened in 2019. Airlines and destinations Statistics Airline market share ^PSA Airlines operates American Eagle flights to Charlotte, NC and Washington–National, D.C. At the time when these statistics were measured, SkyWest operated American Eagle flights to Chicago-O’Hare, IL. Currently, Envoy Air operates the Chicago-O’Hare flights. ^^Endeavor Air operates Delta Connection flights to Atlanta, GA while SkyWest operates Delta Connection flights to both Atlanta, GA and Detroit, MI. Top destinations Controversy Expansion of the airport has raised concerns over adverse environmental impacts by numerous community advocacy groups and area residents. The facility lies