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Rates Information

Water-service rates are based on the costs of treating and delivering water to customers, and are regulated by the Maryland Public Service Commission (PSC). All Maryland American Water customers are charged rates approved by the PSC.

To determine rates, Maryland American Water and Maryland PSC staffs study costs of construction, maintenance, operation, administration and financing. Once the studies are complete, the company and PSC present any differing conclusions before an administrative law judge. Based on the judge’s opinion, the PSC sets the water rates.

Rates charged for service may vary based on a customer’s meter size. All customers pay the same rate for water usage. Customers are billed based on a regular meter reading, quarterly for residential customers and either monthly or quarterly for commercial and other public authority customers.

Maryland American Water’s rates are based on the cost of providing water service to our customers. 

Rates can vary based on the cost of providing service in each of the communities we serve. Before it reaches your home or business, water is treated through and intricate involved process. Water begins its journey from its source and travels through our highly sophisticated plants, into underground pipes, to its final destination, your tap. That source can be a river, aquifer, or an underground well. Along the way, our teams of certified operators, scientists and engineers use the latest technology to oversee and monitor the water’s passage and progress. We test the water quality frequently, using leading methods we pioneered. We understand the value of clean, high-quality water on tap 24 hours a day, and are committed to delivering it reliably. Each year, we conduct more than one million tests and measurements using the most advanced technology and equipment available at our state-of-the-art, world-renowned research laboratory in Belleville, Illinois, and at our local utility labs.

Reliable high-quality water service improves our lives and communities by:

  • Protecting public health
  • Providing fire protection
  • Creating opportunities for economic growth.

Of all of your needs, water is the single most important. It is a life essential resource – you need it every day for almost everything you do. Maryland American Water takes that very seriously and constantly looks for ways to improve upon how to deliver reliable, high quality water. At about a penny a gallon, and considering how often you use water every day – it’s easy to see the true value of your water service – what other item household in your household budget is as affordable? Think about how often you use your service and you’ll see why Maryland American Water is truly an exceptional value.

Maryland American Water Tariff - Effective 11-25-2014

This tariff includes a New Development Capacity Fee. See Page No.3 (a) (i) 

Maryland American Water Files Rate Request

On December 19, 2014, Maryland American Water filed an application with the Maryland Public Service Commission (PSC) requesting an increase in water rates for customers in its Bel Air system. This is the company’s first rate increase request in more than five years. One of the primary reasons for the request is the capital investments of approximately $3.6 million that the company has made since its last rate case in 2009. The system improvements include $1.9 million for replacing aging water infrastructure, and approximately $450,000 for the rehabilitation and repainting of the 250,000-gallon water storage tank located on Main Street, which was completed earlier this year. For more information: