Updated 5/19/2021 9:18 AM For the second year in a row, Illinois American Water, a subsidiary of American Water Company (NYSE: AWK), has received the J.D. Power award for ranking highest in customer satisfaction among large water utilities in the Midwest according to the J.D. Power 2021 U.S. Water Utility Residential Customer Satisfaction StudySM. Illinois American Water also ranked #1 in the Midwest in the 2016 study, which was the first year for the J.D. Power Water Utility Residential Customer Satisfaction Study. The study measures satisfaction among residential customers of 90 water utilities that deliver water to at least 400,000 customers and is reported in four geographic regions and two size categories: Midwest Large, Midwest Midsize, Northeast Large, Northeast Midsize, South Large, South Midsize, West Large and West Midsize. Overall satisfaction is measured by examining 32 attributes in six factors (listed in order of importance): quality and reliability; price; conservation; billing and payment; communications; and customer service.