<P> City Utilities is the largest municipally owned water utility in Indiana, supplying residents with 72 million US gallons (270,000 m) of water per day via the Three Rivers Water Filtration Plant and St. Joseph River . Sanitary sewer treatment is also managed by City Utilities . The City of Fort Wayne offers full curbside recycling and solid waste collection services for residents, presently contracted through Republic Services . Electricity is provided by Indiana Michigan Power, a subsidiary of American Electric Power, while natural gas is supplied by Northern Indiana Public Service Company (NIPSCO), a subsidiary of NiSource . All tier 1 networks and several additional telecommunication service providers cover the Fort Wayne rate area . </P> <P> Fort Wayne has four sister cities as designated by Sister Cities International: </P> <Ul> <Li> Takaoka, Japan (1977) </Li> <Li> Płock, Poland (1990) </Li> <Li> Gera, Germany (1992) </Li> <Li> Taizhou, China (2012) </Li> </Ul> <Li> Takaoka, Japan (1977) </Li>

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