Upgrades to an existing 36 MGD water treatment plant to help maintain high-quality drinking water for the Cities of Pleasanton and Livermore. Construction of new facilities included an ozone generation building, contactor structure, new chemical facilities and storage, and a new utility water pump station. These facilities assist the existing plant in the disinfection and treatment of cyanotoxins. Construction activities were executed to maintain costumer drinking water at all times. We self-performed all underground piping and mechanical/piping installations.