U.S. 50, an east-west route, runs through the northern part of the city. U.S. 400, which also runs east-west, runs through the southern part of the city. U.S. 56, an east-west route, and U.S. 283, a north-south route, run concurrently around the city's southern and eastern fringe. The U.S. 50 business route runs concurrently with U.S. 56, U.S. 283, and U.S. 400 at different points through the southern part and around the eastern part of the city. Dodge City Regional Airport is located approximately east of the city. Used primarily for general aviation, it hosts one commercial airline with daily flights to Denver, CO. Three railroads serve Dodge City: the La Junta Subdivision of the BNSF Railway which runs east-west, the main line of the Cimarron Valley Railroad of which Dodge City is the northeastern terminus, and the Boot Hill and Western Railway of which the city is the northwestern terminus. Using the BNSF trackage, Amtrak provides passenger rail service on its "Southwest Chief" line between Chicago and Los Angeles. Amtrak's Dodge City station is located downtown. Fixed-route bus service operates between 6am and 7pm Monday-Friday. The Utilities Division of the city government's Public Works Department operates and maintains the city's water and waste water distribution systems. The department's Sanitation Division provides trash pickup. Operations Management International, Inc. (OMI), a private contractor, provides waste water treatment, pumping the city's waste water to treatment holding ponds 12 miles south of the city. The Victory Electric Cooperative Association, Inc., part of the Mid-Kansas Electric Company, delivers electricity to the city. Local residents primarily use natural gas as their heating fuel; natural gas service is provided by Black Hills Energy. The Western Plains Medical Complex is the sole hospital in Dodge City. A 100-bed hospital accredited by the Joint Commission, it serves as a referral center for southwestern Kansas. The "Dodge City Daily Globe" is the city's daily newspaper with a circulation of approximately 7,000 copies. In addition, the Roman Catholic Diocese of Dodge City publishes a weekly newspaper, "The Southwest Kansas Catholic", formerly known as "The Southwest Kansas Register". The "High Plains Journal", a weekly trade journal covering regional agricultural news, is also published in the city. Along with Garden City, Dodge City is a center of broadcast media for southwestern Kansas.