Mexia man wins award from American Water Works Assoc. Sat, 01/23/2021 - 12:00am Mexia’s Brent Locke, general manager of the Bistone Municipal Water Supply District, has been honored with the American Water Works ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about Mexia man wins award from American Water Works Assoc.