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Missouri American Water Acquires City of Arnold’s Sewer System

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Today, Missouri American Water announced the closing of the company’s acquisition of the City of Arnold’s sanitary sewer system. The acquisition adds 8,800 sewer customers to Missouri American Water’s operations in St. Louis County.

The Missouri Public Service Commission approved the sale on April 14, 2015.

Arnold voters overwhelmingly approved a public referendum of the sale to Missouri American Water in November 2014.

Arnold is the largest city in Jefferson County. The city’s population is an estimated 21,000 residents.

Missouri American Water’s sewer bills will continue Arnold’s current rates and rate structure — based on winter water usage.

“Missouri American Water’s St. Louis County operation serves more than one million people just a few miles north of Arnold,” said Frank Kartmann, President of Missouri American Water. “We are pleased to bring our engineering and system operation expertise to deliver high quality sanitary sewer service to our new Arnold customers.”

“Over the next four years, Missouri American Water will invest approximately $5 million to upgrade and improve the infrastructure of the Arnold sanitary sewer system,” said Kartmann.

The company expects a smooth transition for customers. Starting today, the sewer system is managed and operated by Missouri American Water. Sewer employees, formerly employed by the City of Arnold, will continue to provide system operation and field services now as Missouri American Water employees.

Customers are receiving information about the sanitary sewer system transition in their current City of Arnold sewer/storm water and trash bills. Missouri American Water will also mail a new customer information package to all Arnold customers prior to the first Missouri American Water sanitary sewer bills, which will arrive in August.

A new company website at will keep City of Arnold customers informed during the transition.

Missouri American Water

Missouri American Water, a subsidiary of American Water (NYSE:AWK) , is the largest investor-owned water utility in the state, providing high-quality and reliable water and/or wastewater services to approximately 1.5 million people.

Founded in 1886, American Water (NYSE:AWK) is the largest publicly traded U.S. water and wastewater utility company. With headquarters in Voorhees, N.J., the company employs 6,400 dedicated professionals who provide regulated and market-based drinking water, wastewater and other related services to an estimated 15 million people in 47 states and Ontario, Canada. More information can be found at

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