Water scarcity is one of the most significant and impactful components of the climate crisis. A 2022 Gallup poll revealed that 57 percent of Americans worry more about safe drinking water than global warming, air pollution or the extinction of animal species.In June, J.D. Power ranked the states with the best and worst tap water based on six factors:quality and reliabilitypriceconservationbilling and paymentcommunicationscustomer serviceThe study tracked water utility customers in all 50 states and the District of Columbia. To be eligible, states had serve a minimum of 400,000 residential customers and a minimum of 100 survey respondents. The states were scored on a scale of 100 to 1,000 points.10 U.S. states with the best tap waterKentuckyWashingtonNew YorkOregonKansasMassachusettsConnecticutMinnesotaVirginiaHawaiiKentucky has the best tap water in the United States. In Louisville, Kentucky, the tap water is so good the city was able to trademark the name Pure Tap, according to the government’s website.There are 435 public water systems in Kentucky. According to the state’s website, approximately 95% of Kentuckians have access to public drinking water.Louisville, Kentucky’s tap water is so good that it was able to be trademarked Pure Tap.Photo By Mike Kline (Notkalvin) | Moment | Getty Images10 U.S. states with the worst tap waterAlabamaMarylandOklahomaNew MexicoTexasPennsylvaniaOhioMississippiArizonaIndianaAlabama ranked as the state with the worst tap water in the country.According to the Alabama Department of Public Health, an estimated 2.1 million Alabamians depend on groundwater as their primary source of drinking water.Alabama ranked as the state with the worst tap water, according to J.D. Power.Pd Nezhadfar / 500Px | 500Px | Getty ImagesAs much as 20 percent of these consumers use private water supplies, such as wells. Because of this, individuals are responsible for guaranteeing the safety of their own drinking water.In Alabama, it’s recommended that water testing be conducted at least once a year.DON’T MISS: Want to be smarter and more successful with your money, work & life? Sign up for our new newsletter!Get CNBC’s free Warren Buffett Guide to Investing, which distills the billionaire’s No. 1 best piece of advice for regular investors, do’s and don’ts, and three key investing principles into a clear and simple guidebook.