Iowa’s second renewable natural gas (RNG) plant at Sioux City’s Wastewater Treatment Plant is operational thanks to ABC members Bartlett & West, a community-driven and nationally-ranked engineering firm, and DMT Clear Gas Solutions, a leading technology supplier for biogas conditioning and upgrading systems. The water resource reclamation facility converts 800 standard cubic feet per minute (SCFM) of biogas to produce more than 99.5% pure renewable natural gas for direct injection into the natural gas pipeline. In doing so, this project generates enough renewable energy equivalent to removing 2,900 vehicles from U.S. roadways for one year or replacing 1.5 million gallons of gasoline annually. More >>