Abstract. The 1996 Safe Drinking Water Act Amendments require that water utilities mail drinking water quality reports to their customers annually. The public uses this information; the news of a water quality violation makes a household 21% more likely to purchase bottled water in the following year.We measure reports of violations with Environmental Protection Agency (EPA) data about violation reports from 1,300 water utilities, with a service population of approximately 10 million people total. We measure the consumer response using the Consumer Expenditure (CEX) survey from 2006-2008 with 10,874 households, and we match consumers to utilities geographically. JEL Codes: Q25, Q53