Hollis Warren is a staunch believer in educating the public and pumpers. For his continuous efforts along those lines, Warren, 57, of Hollis Warren Inc., in Wyoming, Del., was named the 2009 On-Site Professional of the Year by the Delaware Technical and Community College. Warren joined the National Association of Wastewater Transporters Inc. when it formed in 1986. He was instrumental in developing NAWT’s professional training programs and served three terms as president. Warren also worked with the U.S. Environmental Protection Agency on land treatment rules and participated on the Steering Committee for Decentralized Wastewater Treatment.Closer to home, Warren is
