From Water and Wastewater:
Silva currently serves as a policy advisor to the Metropolitan Water District of Southern California, and an MWD spokesman said he specializes in Colorado River issues. The White House announcement mentioned his “work in the public sector specializing in water resources policy with extensive experience in US–Mexico border issues.”
Silva previously served six years on the California Water Resources Control Board, leaving as vice chairman. His appointments to that board came from both a Republican and a Democratic governor of California. He also served three years on the Board of the Border Environment Cooperation Commission, appointed by President Clinton. Silva served three years as the BECC Deputy General Manager, based in Ciudad Juarez, Mexico.
His prior experience also includes 10 years with the city of San Diego, four years in charge of the International Boundary & Water Commission San Diego office and five years with the California Regional Water Quality Board in San Diego.
As USEPA’s Assistant Administrator for Water, Silva would supervise Water Office programs implementing the Safe Drinking Water Act, the Clean Water Act and provisions of several other laws to prevent water pollution and reduce risks for humans and ecosystems.