Pima County has started turning the methane gas from a sewage treatment plant into home heating fuel, and money. At the Tres Rios Water Reclamation Facility, the county’s main treatment plant near Ina Road and I-10, the county used to burn the gas to generate electricity for the plant. Changing regulations made that system uneconomical, so the county built a $10 million plant to clean up the methane, and sell it to Southwest Gas. County wastewater reclamation director Jackson Jenkins says the gas sales will pay for the plant in three to five years. More >>
