Our States & Subsidiaries

We are the largest investor-owned water and wastewater utility in the U.S., an industry leader for drinking water quality, innovation and environmental leadership.

We operate as regulated utilities in approximately 1,600 communities in 14 regulated U.S. states and follow environmental and health and safety regulations set by local authorities and federal standards. Our primary operating assets include approximately:

  • 80 surface water treatment plants;
  • 490 groundwater treatment plants;
  • 175 wastewater treatment plants;
  • 53,500 miles of transmission, distribution and collection mains and pipes;
  • 1,100 groundwater wells;
  • 1,700 water and wastewater pumping stations;
  • 1,100 treated water storage facilities; and
  • 73 dams.

We are actively involved in helping to upgrade our expansive water infrastructure, and we invest over $2 billion annually into our systems to provide continued reliability for our customers, who count on us every day. In most of our service areas, high-quality water service still costs about or less than a penny per gallon.

Our regulated subsidiaries are subject to economic regulation by state public utility commissions (PUCs). That means that in each state we operate, water quality and service rates are subject to extensive regulation by state PUCs, as well as environmental, health and safety and water quality regulations by federal, state and local governments.

Our vast network of treatment plants, pumping stations, storage facilities, and approximately 49,000 miles of pipelines and mains are all put to work each day to provide our customers with the highest-quality service.

American Water Regulated Operations Map

Market-Based Systems

In addition to our regulated operations, we also provide complementary services through our Market-Based businesses that leverage our core competencies, but do not involve ownership of assets.

Under the company’s American Water Enterprises subsidiary, the Market-Based Businesses include:        

Contract Services Groupprovides water and wastewater management solutions for municipal and industrial clients. The company pioneers solutions for optimizing the total water cycle, turning liquids, solids and gases to its customers' advantage. These are generally known as public-private partnerships.

Military Services Group: works with the United States military to source, treat and supply water and to collect and treat wastewater for military installations all over the country as part of the federal government’s Utility Privatization Program.

Market Based Systems Map