San Antonio, Texas USA, October 16, 2009: Engineers who specialize in water treatment working at a privately owned municipal water treatment plant that serves a small portion of suburban San Antonio. ©Bob Daemmrich
Size: 3000px × 2001px
Location: San Antonio Texas USA
Photo credit: © Bob Daemmrich / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: adults, engineers, industry, infrastructure, iwi, male, men, municipal, occupation, people, pipes, plant, private, sewage, treatment, utility, wastewater, water, workers