Mr. Umezaki has performed water, wastewater, and recycled water program management services for a number of cities in Northern California. In this role, he has managed several permitting, design, and construction efforts for major improvements to water and wastewater treatment plants. As part of his program management efforts, he has prepared technical evaluations, interfaced with regulatory agencies, and managed the efforts of numerous consultant teams and stakeholders on behalf of the cities. For twenty-two years, Mr. Umezaki has held key roles on several engineering projects, including program management, engineering design and design review, construction review, and operation and maintenance of water, wastewater, and groundwater treatment systems. He has provided construction observation services for soil and groundwater remediation and is experienced with construction management and contract administration. Mr. Umezaki has prepared engineering documents for submittal to regulatory agencies such as the U.S. EPA and several California Regional Water Quality Control Boards. Mr. Umezaki also evaluates technologies as part of feasibility studies, preparing cost estimates, and designs groundwater treatment systems.